PROTOCOL SYSTEMS INC/NEW
10-K405, 1997-03-31
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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<PAGE>

                               UNITED STATES
                   SECURITIES AND EXCHANGE COMMISSION
                        Washington, D. C. 20549

                                 Form 10-K

(Mark One)

      [X] Annual Report Pursuant to Section 13 or 15(d) of the Securities
                         Exchange Act of 1934

                  For the Fiscal Year Ended December 31, 1996

                                   OR

    [ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities
                           Exchange Act of 1934

                     Commission File Number: 0-19943

                         PROTOCOL SYSTEMS, INC. 
             (Exact name of registrant as specified in its charter)

         Oregon                                                93-0913130
         ______                                                __________
 (State or other jurisdiction of                             (I.R.S. Employer
  incorporation or organization)                             Identification No.)

                 8500 SW Creekside Place, Beaverton, OR 97008
                 ____________________________________________
             (Address of principal executive offices) (Zip Code)

       Registrant's telephone number, including area code: (503) 526-8500

        Securities registered pursuant to Section 12(b) of the Act: None

          Securities registered pursuant to Section 12(g) of the Act:

                  Common Stock, par value $.01 per share
                  _______________________________________
                             (Title of Class)
 
Indicate by check mark whether the registrant (1) has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the 
registrant was required to file such reports), and (2) has been subject to 
such filing requirements for the past 90 days. [X] Yes [ ] No
 
Indicate by check mark if disclosure of delinquent filers pursuant to Item 
405 of Regulation S-K is not contained herein, and will not be contained, to 
the best of the registrant's knowledge, in definitive proxy or information 
statements incorporated by reference in Part III of this Form 10-K or any 
amendment to this Form 10-K. [X]
 
As of March 14, 1997 the aggregate market value of the voting stock held by 
non-affiliates of the registrant was $81,884,393. There were 8,796,259 shares 
of Common stock of the registrant outstanding at March 14, 1997.

                   Documents Incorporated by Reference
                   ___________________________________
                                                         Part of Form 10-K Into
         Document                                         Which Incorporated 
         ________                                         ____________________
Portions of the 1997 Proxy Statement                       Part III

<PAGE>



                                    Part I
 
ITEM 1. BUSINESS
 
GENERAL
 
Protocol Systems, Inc. was incorporated in Oregon in November 1985, and made 
its first commercial shipment of patient monitors in February 1988. Since 
that date, the Company has sold over 40,000 vital signs monitors. In March 
1992, the Company completed its initial public offering. The Company's stock 
trades on the Nasdaq Stock Market under the symbol PCOL.
 
The Company designs, manufactures and markets patient monitoring instruments
and systems utilizing innovative design, advanced software concepts and leading
electronic technology. Protocol's products are designed to address hospitals'
needs for more efficient and flexible utilization of patient monitoring
equipment. The Company's Propaq monitors, including the 100 Series Propaq
monitors and the Propaq Encore (200 Series) monitors, combine multiple
physiologic measurement and display capabilities in a single lightweight, rugged
instrument, permitting the use of the monitor in a variety of patient care
applications. The Company's Acuity System further increases monitoring
flexibility by allowing a clinician to observe and control up to 60 Propaq
monitors from a dedicated UNIX-based workstation.
 
The Company operates in a single industry segment: the design, manufacture, 
sale and servicing of medical instruments and systems. Sales of the Company's 
products by geographic region are shown in the notes to the consolidated 
financial statements.
 
On July 10, 1996, the Company completed the acquisition of Pryon Corporation 
("Pryon"), a supplier of capnography (CO2 monitoring) products to medical 
instrument manufacturers. Capnography is the measurement and graphical 
display of carbon dioxide concentration, or partial pressure appearing at a 
patient's airway. Pryon designs, manufactures and markets both mainstream and 
sidestream sensors and instrumentation to monitor end-tidal carbon dioxide 
levels present in the respired breath of critically ill and other patients. 
This CO2 data, coupled with other clinical signs and information, provides 
clinicians with a noninvasive means to assess the patient's ventilation, 
perfusion and circulatory status. Since 1989, Pryon has sold over 20,000 CO2 
monitoring systems.
 
MARKET FOR PATIENT MONITORING EQUIPMENT
 
The 1996 worldwide market for patient monitoring equipment was estimated to 
be $1.85 billion annually. The principal purchasers of patient monitoring 
products are hospitals; other customers include outpatient surgery centers, 
subacute care centers, clinics, physician offices and emergency 
transportation units.
 
Patient monitoring products measure, display and document physiologic 
information obtained from sensors attached to the patient. Measured 
parameters include electrocardiogram (ECG), invasive and non-invasive blood 
pressure, pulse rate, pulse oximetry, body temperature, respiration rate, 
end-tidal CO2 and other specialized parameters. Products vary from 
specialized single-parameter instruments to monitors with the ability to 
measure multiple parameters and interface with other instruments.

                                     

<PAGE>

 
PATIENT MONITORING MARKET SEGMENTS
 
The patient monitoring market may be divided into five segments: portable 
bedside monitors, low-end systems, high-end systems, telemetry systems, and 
stand-alone monitors. The segments are distinguished by the intensity and 
duration of the monitoring, the acuity of the patient's condition and the 
level of nursing attention devoted to each patient.
 
PORTABLE BEDSIDE MONITORS.  Portable monitors are freestanding and movable 
and typically measure multiple parameters. They are carried or wheeled with 
the patient, often while he or she is being transported to or within the 
hospital. They may also be left at the patient's bedside, providing 
continuous longer-term monitoring when the patient's condition warrants. When 
monitoring is no longer required, the monitor can be easily moved to a new 
location or patient. The Company has been a leader in the development of the 
portable bedside monitoring segment since its introduction of the highly 
portable, multiple-parameter Propaq monitor in 1988.
 
HIGH-END SYSTEMS. High-end systems monitors are normally large, permanently 
located adjacent to a particular hospital bed and connected to a central 
monitoring station for observing multiple patients. They are used most often 
in intensive care units (ICU's) where hospitals care for their more acutely 
ill patients, maintain the highest nurse-to-patient ratios and provide for 
constant patient monitoring. The Propaq Encore monitor and the March 1996 
introduction of Acuity System software version 3.1 allow the Company to 
compete in certain segments of the high-end systems market. The neonatal, 
impedance respiration and 5-lead ECG capabilities of the Propaq Encore 
monitor and the central monitoring capability of the Acuity System provide a 
monitoring system which is suitable to neonatal, pediatric and adult 
respiratory ICU applications.
 
LOW-END SYSTEMS. As medical monitoring manufacturers began to network their 
portable bedside monitors, the low-end systems market segment emerged. These 
systems allow for cost-effective, continuous monitoring of non-ICU patients. 
The Company's Acuity System, with its central monitoring capability, is 
designed to meet the requirements of this market segment. Subsequent 
enhancements to the Acuity software, including arrhythmia detection and 
96-hour full disclosure capabilities, have expanded the potential 
applications for the Company's monitoring system.
 
TELEMETRY SYSTEMS. A telemetry system typically consists of a small unit worn 
by the patient which transmits ECG data via telemetry to a central monitoring 
station. They are used in situations, such as post-coronary care, where the 
patient is allowed freedom of movement as part of the recovery process. The 
Company's Protocol Cordless monitoring system provides such ECG telemetry 
monitoring for ambulating patients.
 
STAND-ALONE MONITORS. This market segment includes stand-alone units which 
are not connected to a central monitoring station. They are often used in 
areas such as operating, emergency and recovery rooms as well as labor and 
delivery units. In these environments, the monitoring needs arise from 
specific procedures and the care giver is closely involved with the patient. 
While some stand-alone monitors include multiple physiologic capabilities, 
many measure only one parameter.
 
PRODUCTS
 
The Company believes that its products presently address approximately $1.1 
billion of the $1.85 billion annual worldwide patient vital sign monitoring 
market. The Company's highly portable multiple-parameter monitors and ECG 
telemetry transmitters networked to Acuity System central workstations allow 
hospitals to realize the benefits of Flexible Monitoring. Flexible Monitoring 
allows hospitals to constantly reconfigure their monitoring capability in 
order to match vital signs monitoring with patient acuity levels in the most 
cost-effective way without compromising the quality of patient care.

                                     


<PAGE>
 
PROPAQ MONITORS AND OPTIONS.  The Company's principal product line, Propaq 
portable patient monitors, is used in hospitals, outpatient surgery centers, 
clinics, physician offices and emergency transportation units to obtain and 
display current physiologic patient information. This information enables 
health care providers to continuously evaluate the patient's condition and to 
assist the clinician in determining the proper medication or treatment 
necessary to promote the patient's recovery. Propaq monitors lead the 
industry in terms of weight, durability and battery life for any comparably 
configured monitor. Propaq 100 Series monitors are available in multiple 
configurations and can measure ECG; blood pressure, both invasively and 
non-invasively; arterial blood oxygen saturation level (pulse oximetry); 
end-tidal CO2 (ETCO2); and body temperature. Propaq monitors are available in 
five languages: English, German, French, Spanish and Japanese.
 
The Company introduced the second generation Propaq monitor, the Propaq 
Encore, in 1995. The Propaq Encore retains all of the monitoring capabilities 
and portability of the 100 Series Propaq monitor. In addition, the Propaq 
Encore monitor provides a brighter, higher resolution display, an enhanced 
user interface, respiration monitoring using impedance pneumography and 
diagnostic level 5-lead ECG monitoring capability. Propaq Encore monitors can 
be configured to monitor adults or infants and neonates. The neonatal market 
represents an estimated $100 million market not previously addressed by the 
Company's products. The Company received clearance from the FDA to market the 
adult/pediatric and neonatal versions of the Propaq Encore in the United 
Sates in June 1995 and February 1996, respectively.
 
The Company expects to introduce the Modem Propaq monitor in the second 
quarter of 1997. This monitor will provide the functionality of the Propaq 
100 series and Propaq Encore monitors and will be able to transmit multiple 
patient vital signs data via modem to the Acuity System.
 
ACUITY SYSTEM.  The Acuity System is the product of a co-development effort 
with Massachusetts General Hospital and was introduced by the Company in 
1991. The Acuity System combines networked Propaq monitors and Protocol 
Cordless transmitters with a Sun Microsystems, Inc. workstation and 
proprietary Protocol software to monitor the vital signs of up to 60 patients 
simultaneously. The Company's software controls the networked Propaq monitors 
and Protocol Cordless transmitters with an easy-to-understand graphical user 
interface display on a high-resolution color CRT screen. The Acuity System 
utilizes a map to display the physical layout of the individual hospital 
floor. Remote diagnostic capabilities enable the Company's service and 
support personnel to evaluate system performance without user interruption 
and provide timely service response. The Acuity System software is available 
in three languages: English, German and French.
 
Central station monitoring generally has been limited to intensive care 
environments in which systems monitors are permanently wired to a central 
station. Propaq monitors, however, can easily be connected to the Acuity 
System as the hospital's needs dictate through the use of a simple snap-in 
modular plug similar to a telephone jack. The portability of Propaq monitors 
and ease with which they may be connected to the system reduces the number of 
monitors the hospital would otherwise need to cover a large number of beds.
 
The full disclosure software version for the Acuity system provides the 
ability to capture and later retrieve each second of patient vital signs data 
for the previous 96-hour period. The system captures all monitored vital sign 
parameters for each patient being monitored by compressing the vital sign 
data and archiving it for later retrieval and analysis.
 
The arrhythmia detection software option enables the system to detect various 
types of ventricular and life-threatening arrhythmias in a patient, classify 
the detected arrhythmias by category and provide an alarm when appropriate. 
Arrhythmia detection is often used in areas of the hospital such as emergency 
departments, cardiac telemetry units, step-down units and intermediate or 
transitional care units.

                                     


<PAGE>
 
PROTOCOL CORDLESS TELEMETRY SYSTEM.  The telemetry option provides wireless 
communication of ECG signals by radio frequency (RF) waves from a portable 
transmitter, generally worn by an ambulating patient, to a Propaq monitor 
equipped with a built-in receiver and antenna. The receiving monitor may be 
networked to the Acuity System for display of the telemetry data at the 
central monitoring station. In March 1996 the Company introduced Protocol 
Cordless telemetry directly from the transmitter to the Acuity central 
workstation. This added capability significantly broadens the scope of 
telemetry applications which the Company's products address.
 
OEM PRODUCTS.  Pryon manufactures solutions for CO2 monitoring applications 
that include mainstream and sidestream CO2 sensors for OEM applications and 
stand-alone monitors for both OEM and direct distribution channels. Pryon 
also manufactures a line of consumable products that are used in conjunction 
with its CO2 sensors.
 
Pryon offers a sidestream CO2 sensor and related hardware and software on an 
OEM basis for use with non-intubated patients in applications such as 
post-ventilator patient assessment, conscious sedation, acute asthma 
assessment in the emergency room, assessment of patient conditions on BiPAP 
and other applications. The mainstream CO2 sensors are sold through the OEM 
channel and are used in hospital venues for intubated patients.
 
Pryon manufactures the SC-300 CO2 Monitor, a stand alone instrument that 
incorporates both mainstream and sidestream CO2 monitoring modalities. A 
follow-up product, the SC-210 CO2 Monitor, was introduced in August 1995. 
This device utilizes the SC-300 platform and provides sidestream monitoring 
only and is thus a more cost effective alternative for those customers 
requiring CO2 monitoring for non-intubated patients only. Pryon also 
manufactures for Nellcor Puritan Bennett a complete standalone instrument 
that incorporates Nellcor Puritan Bennett's oximetry and Pryon's CO2 
capability.
 
MARKETING AND DISTRIBUTION
 
DOMESTIC.  The Company markets its products domestically through both 
Company-employed sales representatives and independent distributors. The 
Company's five domestic sales managers supervise 37 direct sales 
representatives, 4 independent representatives, and 2 independent 
distributors, each with the non-exclusive right to sell the Company's 
products in a defined geographic area. The Company intends to continue to use 
a combination of direct sales representatives and independent distributors 
based on the most effective sales approach for each territory.
 
The Company's primary market in the United States consists of approximately 
6,000 hospitals, where its products are purchased for use in emergency 
departments, operating rooms, post-anesthesia care units, step-down intensive 
care units, special procedure rooms such as cardiac catheterization and 
gastrointestinal endoscopy, labor and delivery, general-care floors, and for 
transport of patients between departments.

In 1990, the General Services Administration approved the Company's Propaq 
monitors for purchase by United States government agencies, including the 
armed forces and Veterans' Administration hospitals. The Company's products 
were added to the U.S. Government's international supply schedule in 1992. In 
September 1995, the Company received approval from the U. S. Air Force for 
in-flight use of the 100 Series Propaq monitor.
 
The Company has three full-time national accounts sales managers and has 
entered into many group contracts with organizations such as AmeriNet, 
University Hospital Consortium (UHC), Kaiser Permanente and others. In June 
1995, the Company was exclusively awarded the Seal of Acceptance by the 
Alliance of Children's Hospitals Inc., a cooperative of 33 children's 
hospitals across the U.S. In September 1996, Protocol was awarded a sole 
source contract for non-critical care physiological monitoring by MAGNET, a 
948-hospital group purchasing organization (GPO) based in Pennsylvania. A 
similar sole source renewal was signed with Sisters of the Sorrowful Mother, 
a major Catholic GPO. The Company now has group contracts which include more 
than half of the acute care hospitals in the U.S.

                                      


<PAGE>
 
INTERNATIONAL.  The Company markets its products internationally through 
independent distributors covering all major European and Pacific Rim markets 
and has sold its products in over 80 countries. The agreements with these 
distributors generally provide the exclusive right to sell the Company's 
products in a specific geographic area or country subject to certain 
performance requirements. A team of five international sales managers 
supervise, assist and train this network of international distributors. 
International sales are made in U.S. dollars to reduce foreign currency risk. 
The Company believes that its ability to provide monitors in English, German, 
French, Spanish or Japanese is an important international marketing advantage.
 
OEM.  Pryon's marketing strategy is to establish and develop OEM customer 
relationships with U.S. and international patient monitoring systems 
manufacturers. Pryon's customers include Nellcor Puritan Bennett, SpaceLabs 
Medical, Medical Data Electronics, Hellige GmbH, Nihon Kohden, NEC, Schiller 
AG., G. Stemple GmbH and others.
 
In January 1990, the Company entered into a development and supply agreement 
with Gensia Sicor, Inc. (Gensia).  Under this agreement, the Company has 
developed a closed-loop drug delivery and monitoring device ("GenESA 
device"). The GenESA device will be used in combination with Gensia's novel 
drug "Arbutamine" for the diagnosis of coronary artery disease in conjunction 
with three major diagnostic modalities: electrocardiography (ECG), 
echocardiography, and radionuclide perfusion imaging. OEM sales of this 
device to Gensia began in the fourth quarter of 1994 with delivery of pilot 
production units. In December 1994, Gensia received a recommendation for 
approval from the European Committee for Proprietary Medicinal Products to 
market the GenESA device to European countries. Full production of the device 
for the European market began in early 1995. Production of the GenESA device 
for the domestic market must await market clearance by the FDA.
 
CUSTOMER SUPPORT.  The Company maintains a technical support group to provide 
clinical in-service, installation, repair and technical training services in 
support of both direct and distributor sales. Technical support offices are 
currently maintained in Beaverton, Oregon, the United Kingdom, Germany and 
Asia/ Pacific (New Zealand). In addition, the Company provides maintenance 
and repair classes for distributors and the biomedical engineering personnel 
of its hospital customers. The services of Sun Microsystems and its 
third-party maintenance affiliates are available to support the Acuity 
System. Pryon provides its OEM customers technical support from their offices 
in Menomonee Falls, Wisconsin.
 
WARRANTIES.  The Company warrants its Propaq products sold in the United 
States and Canada for three years from the date of original delivery to the 
ultimate purchaser and for one year if sold outside North America. A 90-day 
warranty is provided on accessories included with the products at the time of 
purchase. Sales of the Acuity System are warranted for a one-year period. 
Pryon offers warranties between 9 and 15 months for OEM products and 12 
months for stand-alone products. Optional extended warranty contracts are 
available for all Propaq products, the Acuity system and Pryon products at 
additional cost.
 
BACKLOG.  Most customer orders are filled within 30 days of order receipt. As 
a result, order backlog is normally less than one month's production. Due to 
these factors, the Company does not believe backlog is an accurate indication 
of future sales.
 
RESEARCH AND DEVELOPMENT
 
The Company's research and development efforts at both the Beaverton, Oregon 
and Menomonee Falls, Wisconsin locations focus on developing new products and 
expanding the capabilities of existing products. The Company's research and 
development staff consists of 88 individuals with collective expertise in 
analog and digital circuit design, software design, networking and 
communications, mechanical and packaging design, mathematics, medical and 
clinical sciences, and optics and display technology. During 1996, 1995 and 
1994, research and development expenses, net of reimbursed expenditures, were 
$8.7 million, $6.2 million and $4.8 million, respectively. Reimbursed 
research and development expenditures under the joint development agreement 
with Gensia were $54,000, $88,000 and $443,000 in 1996, 1995 and 1994, 
respectively.




<PAGE>
 
The Company has taken a leadership role in the Andover Working Group (AWG) 
and CORBAmed, two industry organizations that are dedicated to the goal of 
interoperability between different hospital computer systems. Using the 
standards adopted by CORBAmed and AWG, Protocol will be able to transmit 
Acuity System data to any system that adheres to the adopted standards and is 
also programmed to utilize the kind of data the Acuity System generates. This 
capability provides a seamless exchange of data between the Flexible 
Monitoring system and hospital information systems. First demonstrated in 
October 1996 and February 1997 at industry conferences, the capability is 
expected to be included in the Acuity System communications option and 
available for customer shipments in late 1997.
 
MANUFACTURING
 
Protocol's manufacturing operations consist of procurement and inspection of 
components, final assembly of electronic components and extensive testing of 
finished products. The Company uses subcontractors for the fabrication and 
assembly of printed circuit boards. By using this approach, the Company 
reduces its capital and employee requirements and can more easily and rapidly 
adopt emerging manufacturing technologies.
 
The Company currently procures all of its parts from outside suppliers and 
relies upon a number of single-source suppliers to provide certain parts for 
its products, including the pulse oximetry and EL display subassemblies. To 
date, the Company has been able to obtain the necessary parts to meet 
manufacturing requirements. There can be no assurance, however, that supply 
shortages or interruptions will not arise in the future, which could increase 
the cost or delay the shipment of the Company's products or cause the Company 
to incur costs to develop alternative sources, either of which could have a 
material adverse effect on the Company's results of operations.
 
Protocol typically purchases components pursuant to open purchase orders 
placed from time to time in the ordinary course of business and has no 
forward purchasing or other arrangements with its suppliers. In order to 
reduce the risk of supply interruption, the Company maintains close working 
relationships with its suppliers and may choose to inventory selected 
components.
 
Quality and reliability are emphasized in the design and manufacture of the 
Company's products. The Company believes it manufactures its products 
according to criteria that meet or exceed the requirements of all applicable 
domestic and foreign regulations and standards. The Company's products 
undergo thorough quality inspection and testing throughout the manufacturing 
process. In addition, Protocol's quality assurance group inspects, operates 
and verifies calibration and conformance with the customer order of all 
products prior to shipment.
 
The Company's Beaverton, Oregon manufacturing facility received notification 
of ISO 9001 certification in March 1997, an upgrade to the ISO 9002 
certification received in May 1995 for the production of patient vital signs 
monitoring systems and closed-loop drug delivery/vital signs monitoring 
systems for diagnosis. In September 1995, the Company successfully completed 
a combined Premarket Approval (PMA) and Good Manufacturing Practices (GMP) 
audit by the FDA. The PMA audit centered on the Company's manufacturing 
process for the GenESA device. The GMP audit reviewed manufacturing practices 
at the Company's Beaverton, Oregon manufacturing facility. The combined audit 
was completed with no adverse observations and without the issuance of Form 
483.
 
Pryon manufactures and assembles its products at its facility in Menomonee 
Falls, Wisconsin. Pryon made significant capital and other investments to 
enhance its manufacturing process and systems including production specific 
systems, computerized in-process test stations, automatic computerized 
calibration, specialized test fixtures and an airway adapter test system. In 
addition, Pryon made a significant investment in personnel and systems in the 
areas of quality, regulatory and documentation control. As a result of these 
efforts, Pryon received ISO9001 and EN 46001 certifications in November 1995, 
and achieved self-certification status per Annex II of the Medical Device 
Directive in June 1996.  Pryon completed a GMP audit in October 1996.  This 
audit, as well as previous GMP audits, was completed with no adverse findings 
and without the issuance of Form 483.




<PAGE>
 
COMPETITION
 
The patient monitoring products market is intensely competitive and 
characterized by rapidly evolving technology. Selling its products in 
multiple market segments, the Company faces a broad range of competitors, 
many of which have financial, technical, research and development and 
marketing resources significantly greater than those of the Company. The 
Company's principal competitors are Datascope Corporation, Hewlett-Packard 
Co., Marquette Electronics, Inc., Medical Data Electronics, Inc., Siemens 
Medical Electronics, and Spacelabs Medical, Inc. Pryon's competitors include 
Novametrix, Andros and Spegas. In addition to the Company's existing 
competitors, other medical and electronic equipment companies could enter the 
markets in which the Company competes.
 
The Company believes that the principal competitive factors in its market are 
product depth and breadth, individual product features, reliability, customer 
service, product reputation, price and effectiveness of marketing and sales 
efforts. In addition, the Company believes that the speed with which 
companies can identify medical needs and anticipate evolving standards of 
care, develop products to meet those needs and standards, and supply 
commercial quantities to the market are important competitive factors. The 
Company believes that it competes favorably with respect to these factors.
 
PATENTS, TRADEMARKS AND COPYRIGHTS
 
The Company owns or has rights to nine U.S. patents, and has six U.S. patent 
applications pending related to the design and manufacture of patient 
monitoring instruments. The Company owns or has the rights to six foreign 
patents. The Company also owns nine U.S. registered trademarks, has three 
U.S. trademark registration applications pending, owns seven registered 
trademarks in various countries and has two foreign trademark applications 
pending. In addition, the Company holds copyrights with respect to its 
proprietary software. Pryon owns or has the rights to two U.S. patents. 
Although the Company has such proprietary rights, it believes that its 
success depends more upon the innovative skills and technical competence of 
its management and employees in responding to customer needs and changing 
markets than upon ownership of such rights.
 
GOVERNMENT REGULATION
 
The manufacture and sale of the Company's products are subject to substantial 
regulation by numerous governmental authorities, principally the FDA and 
corresponding foreign agencies. Protocol is subject to FDA regulations, 
standards and procedures with respect to registration of the Company's 
manufacturing facilities and the manufacture of its medical devices and to 
periodic FDA inspection for compliance therewith. The FDA also has broad 
regulatory powers with respect to pre-clinical and clinical testing of new 
medical devices and the manufacturing, marketing and advertising of medical 
devices.
 
The Company is also subject to regulation in the foreign countries in which 
it markets its products. Many of the regulations applicable to the Company's 
products in such countries are similar to those of the FDA. However, certain 
foreign regulatory agencies establish product standards and qualification 
requirements for medical devices which are different from, and in some cases 
more stringent than, those in the United States.
 
The Company has received certification that the 100 Series Propaq monitor, 
the Propaq Encore monitor, and the SC-300 and SC-210 stand alone monitors 
meet the essential requirements of the Medical Device Directive of the 
European Union. This certification authorizes the Company to display the CE 
mark on its Propaq monitors and to sell Propaq monitors in the various 
countries of the European Union. Prior to obtaining this certification, the 
Company was required to obtain product approvals from each of the pertinent 
regulatory agencies of the individual countries of the European Union.
 




<PAGE>

Federal and foreign regulations regarding manufacture and sale of products 
such as those of the Company, as well as regulations and practices regarding 
the reimbursement of hospitals and other health care providers for the cost 
of service rendered, are subject to change. Although the Company cannot 
predict what impact, if any, such changes might have on its business, it is 
possible that any such changes could adversely affect the Company's business.
 
EMPLOYEES
 
As of December 31, 1996, the Company had 401 employees, including 88 in 
research and development, 163 in manufacturing, 103 in marketing and sales 
and 36 in administration. The Company's future success will depend, in part, 
on its continued ability to attract and retain qualified personnel. None of 
the Company's employees are represented by collective bargaining groups and 
the Company considers its relationships with employees to be good.
 
ITEM 2. PROPERTIES
 
The Company's principal offices are located in Beaverton, Oregon and 
Menomonee Falls, Wisconsin. The Company leases approximately 75,000 square 
feet at the Beaverton, Oregon location under a lease that expires in December 
2000. The lease for 26,000 square feet at the Menomonee Falls, Wisconsin 
facility expires in June 1997. The primary manufacturing, warehousing, 
research and development, sales, marketing and administrative activities of 
the Company are conducted from these facilities which are nearly fully 
utilized and are maintained in good condition. The Company believes that the 
properties subject to the lease and additional office space available under 
lease options will be sufficient to accommodate its operations for the near 
term.
 
ITEM 3. LEGAL PROCEEDINGS
 
The Company is not a party to any material legal proceedings.
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
No matters were submitted to a vote of security holders during the fourth 
quarter of the fiscal year ended December 31, 1996.
 


<PAGE>

                                   PART II
 
ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
        MATTERS
 
The Company's common stock began trading on the Nasdaq Stock Market under the 
symbol PCOL on March 24, 1992 following the Company's initial public 
offering. As of March 14, 1997, there were 197 stockholders of record of 
Protocol common stock and approximately 4,900 beneficial owners of common 
stock. No cash dividends have been paid on the common stock and the Company 
does not anticipate paying any cash dividends in the foreseeable future.

Following are the range of the high and low sales prices for the Company's 
common stock as reported by Nasdaq:
 
1996--QUARTER ENDED:                              HIGH       LOW
- ----------------------                          --------  ---------

December 31, 1996..............................  $15.75    $ 10.00
September 30, 1996.............................  23.25       15.25
June 30, 1996..................................  26.38       15.63
March 31, 1996.................................  17.50       10.50

1995--QUARTER ENDED:                              HIGH       LOW
- ----------------------                          --------  ---------
December 31, 1995..............................  $11.50    $  9.88
September 30, 1995.............................  11.88        9.25
June 30, 1995..................................  13.00        8.50
March 31, 1995.................................  12.00        8.75


During 1996, the Company sold securities without registration under the 
Securities Act of 1933, as amended (the "Securities Act") upon the exercise 
of certain stock options granted under the Company's stock option plans.  An 
aggregate of 44,112 shares of Common Stock were issued at exercise prices 
ranging from $1.32 to $9.00.  These transactions were effected in reliance 
upon the exemption from registration under the Securities Act provided by 
Rule 701 promulgated by the Securities and Exchange Commission pursuant to 
authority granted under Section 3(b) of the Securities Act.


<PAGE>

Item 6. Selected Financial Data




<TABLE>
<CAPTION>
                                                                          YEAR ENDED DECEMBER 31,
                                                       -------------------------------------------------------
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)                1996        1995        1994        1993        1992
- ----------------------------------                     -----        ------     ------      ------      -------
<S>                                                    <C>          <C>        <C>        <C>          <C>     
Operations Data
     Sales....................................         $66,894      $  59,602  $  48,158  $  43,327    $  32,157
     Income from operations...................           5,005          6,010      4,098      3,823        1,630
     Income excluding acquisition and
       litigation charges (net of related
       tax effects)...........................           6,374          5,398      3,434      2,954        1,303
     Income before extraordinary item and
       cumulative effect of change in
       accounting principle...................           4,078          5,398      3,434      2,954        1,303
     Net income...............................           4,078          5,398      3,434      3,054        1,346

Per Share Data
     Net income per common and common
       equivalent share excluding acquisition
       and litigation charges (net of related
       tax effects)...........................          $  .68         $ .60      $  .40      $ .34       $ .17
     Net income per common and common
       equivalent share before extraordinary
       item and  cumulative effect of
       change in accounting principle.........             .44           .60         .40        .34         .17
     Net income per common and common  
       equivalent share.......................             .44           .60         .40        .35         .17
     Weighted average number of common and
       common equivalent shares outstanding...           9,373         9,010       8,653      8,644       7,837
     Dividends declared.......................              --            --          --         --          --

Balance Sheet Data
     Cash and investments.....................         $22,703      $ 24,267    $ 23,719   $ 19,466   $ 22,882
     Working capital..........................          43,783        30,853      33,352     30,399     25,076
     Total assets.............................          59,045        57,220      48,196     42,213     37,607
     Long- term debt and capital lease
       obligations, excluding current
        maturities............................              --         1,795         156        387        568
     Shareholders' equity.....................          51,309        46,793      39,426     34,733     30,984
</TABLE>
 


<PAGE>

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS  

ACQUISITION OF SUBSIDIARY  

On July 10, 1996, the Company completed the acquisition of Pryon Corporation 
(Pryon), a supplier of CO2 monitoring products to medical instrument 
manufacturers. The Company issued 1,211,100 shares of the Company's common 
stock in exchange for all of the outstanding capital stock of Pryon. In 
addition, the Company issued options to purchase 121,159 shares of the 
Company's common stock in replacement of options to purchase Pryon common 
stock which were outstanding immediately prior to the acquisition. Charges of 
$2.1 million were incurred inconnection with the acquisition which consisted 
primarily of investment banking, legal and accounting fees.

The acquisition was accounted for as a pooling of interests and accordingly,
the financial statements of Protocol Systems, Inc., related footnote 
disclosures and supplemental financial data have been restated to show the 
combined results of the two companies as of the earliest period presented. 
The Company continues to operate Pryon as a wholly-owned subsidiary and 
continues engineering, manufacturing, and OEM sales activities at Pryon's 
current facility in Menomonee Falls, Wisconsin. Further discussion of this 
acquisition is included in note 9 of the notes to consolidated financial 
statements.     

The following discussion and analysis of Results of 
Operations for 1995 and 1994 has been restated to address the combined 
results of the Company including Pryon.  

RESULTS OF OPERATIONS  

1996 Compared to 1995  

Sales.  Sales increased 12.2% to $66.9 million in 1996 from $59.6 
million in 1995. Instrument sales (including monitor options) increased by 
$7.0 million or 17.6% from 1995. The growth in instrument sales resulted from 
increased unit sales of monitors and monitor options as well as increased 
average selling prices for monitors. Average selling prices for monitors rose 
as unit sales of the Propaq Encore (200 Series) monitor increased and 
represented a larger percentage of total monitor unit sales. Sales of the 
Propaq Encore monitor, which carries a higher list price than the Company's 
100 Series Propaq monitor, began in June 1995. Increases in the sales of 
accessories, service, Acuity Systems and GenESA devices also contributed to 
the growth in total sales.      

Domestic sales, excluding Original Equipment Manufacturer (OEM) sales, 
increased 25.1% to $37.7 million (56.3% of total sales) in 1996 from $30.1 
million (50.5% of total sales) in 1995. The growth in domestic sales was 
attributable to a significant increase in sales to the U.S. military, the 
increase in sales of the Propaq Encore monitor, and the growing market 
acceptance of the Company's Flexible Monitoring concept which enables 
hospitals to maximize patient monitor utilization and reduce overall 
monitoring costs.      

International sales, excluding OEM sales, increased 13.1% to $18.8 million 
(28.1% of total sales) in 1996 from $16.6 million (27.9% of total sales) in 
1995. This growth in international sales was principally due to increased 
sales to the Company's Japanese distributor and increased sales of the Propaq 
Encore monitor. International sales are denominated in U.S. currency.  

OEM sales decreased 19.0% to $10.4 million (15.6% of total sales) in 1996 
from $12.9 million (21.6% of total sales) in 1995. OEM sales by Pryon 
decreased by $2.7 million or 25.7% due to reductions in orders from certain 
of its OEM customers. OEM sales of GenESA devices to Gensia Sicor, Inc. 
increased 9.6% to $2.4 million in 1996 from $2.2 million in 1995, partially 
offsetting the decrease in Pryon's sales. In December 1994, Gensia received a 
recommendation for approval from the European Committee for Proprietary 
Medicinal Products to market the GenESA device to European countries. Full 
production of the device for the European market began in early 1995 while 
production of the GenESA device for the domestic market must await clearance 
by the FDA.



<PAGE> 
Gross Profit.  Gross profit as a percentage of sales increased from 
53.4% in 1995 to 54.4% in 1996. The increase in gross profit as a percentage 
of sales was largely due to the decline in OEM sales as a percentage of total 
sales. OEM sales generally have lower margins than sales to end-user 
customers.

Research and development. Research and development expenses increased 13.4% 
to $8.8 million in 1996 from $7.7 million in 1995. The increase in expenses 
consisted primarily of payroll and related costs associated with the 
additional engineering headcount required to support the Company's 
development activities. In addition, the inclusion of the expenses of the 
Company's Northern Ireland subsidiary, Protocol Medical Systems Limited, for 
a full twelve months in 1996 also contributed to the increase in expenses. 
This subsidiary was acquired on July 31, 1995 and therefore, only a portion 
of the year's expenses were included in 1995. As a percentage of sales, 
research and development expenses were 13.1% in 1996 and 13.0% in 1995.  

Selling, general and administrative. Selling, general and administrative 
expenses increased 12.2% to $20.3 million in 1996 from $18.1 million in 1995. 
This increase resulted primarily from rising payroll and related costs 
associated with the growth of the sales organization, higher administrative 
fees paid to hospital buying groups and increased travel costs for the 
domestic and international sales organizations. As a percentage of sales, 
selling, general and administrative expenses were 30.3% in both 1996 and 
1995.  

Acquisition related charges. The Company incurred expenses of $2.1 million in 
1996 in connection with the acquisition of Pryon. These expenses consisted 
principally of fees for investment banking, legal and accounting services as 
well as other expenses related to the combination of the two companies.  

Litigation settlement charges. In 1996, the Company incurred $275,000 in 
expenses in connection with the settlement of litigation regarding the 1991 
termination of the Company's former Canadian distributor.  

Other Income.  Other income (net) increased to $999,000 in 1996 from $916,000 
in 1995 primarily due to reduced interest expense on the debt of Pryon. 
Following the Company's acquisition of Pryon in July 1996, the outstanding 
debt of Pryon was retired.  

Provision for income taxes. The provision for income taxes increased to $1.9 
million in 1996 from $1.5 million in 1995, representing effective tax rates 
of 32.1% and 22.1%, respectively. The increase in the effective tax rate 
resulted primarily from the effect of nondeductible charges related to the 
acquisition of Pryon and a reduction in the tax benefit from the utilization 
of Pryon's net operating loss carryovers. 

1995 Compared to 1994  

Sales.  Sales increased 23.8% to $59.6 million in 1995 
from $48.2 million in 1994. Instrument sales (including monitor options) 
increased by $4.3 million or 12.3% from 1994. The growth in instrument sales 
resulted from increased unit sales of monitors and monitor options as well as 
increased average selling prices for monitors. Average selling prices for 
monitors increased as a result of the 1995 introduction of the Propaq Encore 
(200 Series) monitor, which sells for a higher list price than the Company's 
100 Series Propaq monitor. Sales by Pryon to its OEM customers also increased 
by $3.5 million or 50.7% in 1995. Sales of GenESA devices, Acuity Systems, 
accessories and service also increased over 1994 levels.  

Domestic sales, excluding Original Equipment Manufacturer (OEM) sales, 
increased 22.7% to $30.1 million (50.5% of total sales) in 1995 from $24.5 
million (51.0% of total sales) in 1994. The growth in domestic revenues was 
attributable to the success of the Company's Flexible Monitoring concept, 
which enables hospitals to maximize patient monitor utilization and reduce 
overall monitoring costs, the introduction of the Propaq Encore monitor, and 
increased sales to the U.S. military.

    International sales, excluding OEM sales, increased 14.4% to $16.6 
million (27.9% of total sales) in 1995 from $14.5 million (30.1% of total 
sales) in 1994. This increase in international sales was principally 
attributable to increased international military sales and the introduction 
of the Propaq Encore monitor. International sales are denominated in U.S. 
currency.



<PAGE> 

OEM sales increased 41.6% to $12.9 million (21.6% of total sales) in 1995 
from $9.1 million (18.9% of total sales) in 1994. The increase in OEM sales 
was attributable primarily to a $3.5 million increase in sales by Pryon to 
its OEM customers. OEM sales of GenESA devices to Gensia Sicor, Inc. of $2.2 
million offset a decline in sales to Siemens Medical Electronics from $1.7 
million in 1994 to $200,000 in 1995 as a result of Siemens' changing product 
strategy. Sales of pilot production GenESA devices to Gensia commenced in 
December 1994 and contributed $376,000 to 1994 revenues.  

Gross Profit.  Gross profit as a percentage of sales increased slightly to 
53.4% in 1995 from 53.2% in 1994. Improved manufacturing efficiencies and an 
increase in average selling prices for Pryon more than offset the negative 
impacts on the gross profit percentage which resulted from an increase in 
non-instrument sales as a percentage of total sales, and from sales of the 
Propaq Encore monitor which has a lower margin than the Propaq 100 series 
monitor. Non-instrument sales such as sales of Acuity Systems, GenESA 
devices, and monitor accessories generally carry a lower gross margin than 
instrument sales.  

Research and development. Research and development expenses increased 25.8% 
to $7.7 million in 1995 from $6.1 million in 1994. The increase in research 
and development expenses resulted primarily from one-time costs related to 
the development and introduction of the Propaq Encore monitor. These costs 
included significant expenses incurred to expedite development of this new 
product in the first quarter of 1995 as well as costs incurred for safety 
testing and certification of this new monitor. Further increases in research 
and development expenses resulted from engineering consumption of Propaq 
Encore units for ongoing product development efforts and a reduction in 
software development costs capitalized. As a percentage of sales, research 
and development expenses increased to 13.0% in 1995 from 12.7% in 1994.  

Selling, general and administrative. Selling, general and administrative 
expenses increased 17.3% to $18.1 million in 1995 from $15.4 million in 1994. 
Rising payroll and related costs as well as increased travel costs for the 
domestic and international sales organizations were the primary causes of the 
increase. One-time advertising and public relations costs of the Propaq 
Encore product launch incurred in the second quarter of 1995 as well as 
marketing expenses associated with the launch of Pryon's direct products also 
contributed to the increase in expenses. As a percentage of sales, selling, 
general and administrative expenses decreased to 30.3% in 1995 from 32.0% in 
1994.  

Other Income.  Other income (net) increased to $916,000 in 1995 from $647,000 
in 1994 primarily as a result of increased interest income due to higher 
interest rates earned on invested balances as well as higher average 
investment balances in 1995.  

Provision for income taxes. The provision for income taxes increased to $1.5 
million in 1995 from $1.3 million in 1994, representing effective tax rates 
of 22.1% and 27.6%, respectively. The decrease in the effective tax rate 
resulted primarily from the tax benefit of Pryon's utilization of net 
operating loss carryovers in 1995 whereas in 1994, net operating loss 
carryovers were generated by Pryon with no related tax benefit. The reduction 
of valuation reserves against deferred tax assets in 1995 also contributed to 
the decrease in the effective tax rate. These factors were partially offset 
by the reduction of research and experimentation tax credits allowed in 1995 
due to expiration of the tax code provisions allowing for such credits.



<PAGE>

NEW ACCOUNTING PRONOUNCEMENTS  

In October 1995, the Financial Accounting Standards Board issued Statement of 
Financial Accounting Standards (SFAS) No. 123 "Accounting for Stock Based 
Compensation". This statement defines a fair value based method of accounting 
for employee stock options or similar equity instruments. However, this 
statement allows an entity to continue to measure compensation costs related 
to such equity instruments in accordance with the intrinsic value based 
method of accounting prescribed by APB Opinion No. 25. Entities which elect 
to continue to apply the provisions of APB Opinion No. 25 are required to 
make pro-forma disclosures of net income and earnings per share as calculated 
using the fair value based method of accounting prescribed by SFAS No. 123. 
Such disclosures are included in note 5 of the notes to consolidated 
financial statements. Because the Company has elected to continue to account 
for stock based compensation in accordance with APB Opinion No. 25, 
implementation of this statement did not have a material effect on the 
Company's financial position or results of operations.  

LIQUIDITY AND CAPITAL RESOURCES  

As of December 31, 1996, the Company's financial position remained strong as 
cash and investment balances totaling $22.7 million continued to provide the 
Company with a substantial source of capital and liquidity. Working capital 
balances increased to $43.8 million at December 31, 1996 from $30.9 million 
at December 31, 1995 primarily due to a shift in the Company's investment 
portfolio towards short-term investments. The change in the mix of long-term 
and short-term investments also resulted in an increase in the current ratio 
to 7.0:1 at December 31, 1996 from 4.8:1 at December 31, 1995.  

Operating activities generated positive cash flows of $3.4 million in 1996 
despite a significant increase in inventory balances of $2.6 million which 
consists primarily of finished goods inventories. During 1996, significant 
cash outlays of $2.5 million were made for the acquisition of property and 
equipment and $1.9 million for the retirement of Pryon's long-term debt.  

No significant commitments for capital expenditures have been entered into as 
of December 31, 1996. However, management will continue to explore 
opportunities for strategic relationships with other companies and the 
possible acquisition of technologies or businesses, all of which may require 
significant future outlays of cash. Management believes that the combination 
of current cash and investment balances and cash flows from operations will 
be sufficient to meet the Company's liquidity and capital needs for 1997 and 
the foreseeable future.  

FORWARD-LOOKING STATEMENTS  

The Management's Discussion and Analysis of Financial Condition and Results 
of Operations and other sections of this Annual Report contain 
forward-looking statements within the meaning of the Securities Litigation 
Reform Act of 1995 that are based on current expectations, estimates and 
projections about the Company's business, management's beliefs and 
assumptions made by management. Words such as "expects," "anticipates," 
"intends," "plans," "believes," "seeks," "estimates" and variations of such 
words and similar expressions are intended to identify such forward-looking 
statements. These statements are not guarantees of future performance and 
involve certain risks, uncertainties and assumptions that are difficult to 
predict. Therefore, actual outcomes and results may differ materially from 
what is expressed or forecasted in such forward-looking statements due to 
numerous factors, including, but not limited to those discussed in this 
discussion and analysis of financial condition and results of operations, as 
well as those discussed elsewhere in the Annual Report and from time to time 
in the Company's other Securities and Exchange Commission filings and 
reports. In addition, such statements could be affected by general industry 
and market conditions and growth rates, and general domestic and 
international economic conditions.




<PAGE>

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA



REPORT OF MANAGEMENT      

The management of Protocol Systems, Inc. is responsible for the accompanying 
consolidated financial statements. These consolidated financial statements 
were prepared by management in conformity with generally accepted accounting 
principles and necessarily include amounts which are based on management's 
best estimates and judgment.    

Management is also responsible for maintaining systems of internal control to 
provide reasonable assurance that assets are safeguarded, business activities 
are executed in accordance with management authorization and transactions are 
properly recorded.     

The Audit Committee of the Board of Directors is composed of two outside 
directors who are not officers or employees of the Company. These directors 
meet regularly with management and with the independent auditors to review 
matters related to accounting, financial reporting and the Company's systems 
of internal control. The independent auditors have free access to the Audit 
Committee, without management present, to discuss these matters. 

James B. Moon                               Craig M. Swanson 
President, Chief Executive Officer and      Vice-President Finance, Chief
Chairman of the Board                       Financial Officer and Secretary 

INDEPENDENT AUDITORS' REPORT  

To the Shareholders and Board of Directors of Protocol Systems, Inc.:      

We have audited the accompanying consolidated balance sheets of Protocol 
Systems, Inc. and subsidiaries as of December 31, 1996 and 1995, and the 
related consolidated statements of operations, shareholders' equity, and cash 
flows for each of the years in the three-year period ended December 31, 1996. 
These consolidated financial statements are the responsibility of the 
Company's management. Our responsibility is to express an opinion on these 
consolidated financial statements based on our audits.      

     We conducted our audits in accordance with generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements are 
free of material misstatement. An audit includes examining, on a test basis, 
evidence supporting the amounts and disclosures in the financial statements. 
An audit also includes assessing the accounting principles used and 
significant estimates made by management, as well as evaluating the overall 
financial statement presentation. We believe that our audits provide a 
reasonable basis for our opinion.          

     In our opinion, the consolidated financial statements referred to above 
present fairly, in all material respects, the financial position of Protocol 
Systems, Inc. and subsidiaries as of December 31, 1996 and 1995, and the 
results of their operations and their cash flows for each of the years in the 
three-year period ended December 31, 1996 in conformity with generally 
accepted accounting principles.  

/s/KPMG Peat Marwick LLP
Portland, Oregon 
January 24, 1997


<PAGE>

                              PROTOCOL SYSTEMS, INC.
                     Consolidated Statements of Operations
                    (in thousands except per share amounts)
 
<TABLE>
<CAPTION>
                                                                                       YEAR ENDED DECEMBER 31,
                                                                                   -------------------------------
                                                                                     1996       1995       1994
                                                                                   ---------  ---------  ---------
<S>                                                                                <C>        <C>        <C> 
Sales............................................................................  $  66,894  $  59,602  $  48,158
Cost of sales....................................................................     30,471     27,793     22,515
                                                                                   ---------  ---------  ---------
          Gross profit...........................................................     36,423     31,809     25,643
 
Operating expenses:
     Research and development expenses...........................................      8,754      7,719      6,134
     Selling, general and administrative expenses................................     20,292     18,080     15,411
     Acquisition related charges (note 9)........................................      2,097         --         --
     Litigation settlement charges...............................................        275         --         --
                                                                                   ---------  ---------  ---------
          Total operating expenses...............................................     31,418     25,799     21,545
                                                                                    ---------  ---------  ---------
          Income from operations.................................................      5,005      6,010      4,098
 
Other income (expense):
     Interest income.............................................................      1,156      1,164        822
     Interest expense............................................................       (110)      (186)      (146)
     Other.......................................................................        (47)       (62)       (29)
                                                                                   ---------  ---------  ---------
                                                                                         999        916        647
 
          Income before income taxes.............................................      6,004      6,926      4,745
 
Provision for income taxes (note 7)..............................................      1,926      1,528      1,311
                                                                                   ---------  ---------  --------- 

          Net income.............................................................  $   4,078  $   5,398  $   3,434
                                                                                   ---------  ---------  --------- 

          Net income per common and common equivalent share......................  $    0.44  $    0.60  $    0.40
                                                                                   ---------  ---------  --------- 
          Weighted average number of common and common equivalent shares
            outstanding..........................................................      9,373      9,010      8,653
</TABLE>
 
    See accompanying notes to consolidated financial statements.
 


<PAGE>

                           PROTOCOL SYSTEMS, INC.
                         Consolidated Balance Sheets
                               (in thousands)
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,
                                                                     --------    --------
ASSETS                                                                 1996        1995
- -------------------------------------------------------------------  --------    --------
<S>                                                                  <C>          <C>    

Current assets:
     Cash and cash equivalents.....................................  $ 6,903      $ 3,974
     Short-term investments (note 3)...............................   14,787        8,225
     Accounts receivable:
       Trade, less allowance for doubtful accounts of $252 and
         $212 at 1996 and 1995, respectively.......................   14,923       14,727
       Other.......................................................      533          700
     Inventories (note 2)..........................................   12,416        9,866
     Deferred income taxes (note 7)................................    1,320        1,249
     Prepaid expenses and other....................................      166          298
                                                                     -------       ------
   
          Total current assets.....................................   51,048       39,039
 
Long-term investments (note 3).....................................    1,013       12,068
Property and equipment, at cost
     Equipment.....................................................   10,180        7,079
     Furniture and fixtures........................................    1,419        1,832
     Leasehold improvements........................................      654          899
                                                                     -------       ------
                                                                      12,253        9,810
     Less accumulated depreciation and amortization................    7,775        5,962
                                                                     -------       ------ 

          Net property and equipment...............................    4,478        3,848
 
Software development costs.........................................      446          475
Other assets.......................................................    2,060        1,790
                                                                     -------       ------

                                                                     $59,045      $57,220
                                                                     -------       ------

LIABILITIES AND SHAREHOLDERS' EQUITY
 
Current liabilities:
     Accounts payable..............................................  $ 2,480      $ 2,669
     Accrued salaries, wages and related liabilities...............    2,514        2,282
     Other accrued liabilities.....................................      739          696
     Income taxes payable..........................................      405        1,246
     Reserve for warranties........................................      985        1,053
     Deferred revenue and customer deposits........................      142          140
     Current portion, long-term debt...............................       --          100
                                                                     -------       ------ 
          Total current liabilities................................    7,265        8,186

Long-term debt.....................................................       --        1,795
Deferred income taxes (note 7).....................................      471          446
 
Commitments (note 6)...............................................       --           --
 
Shareholders' equity (note 4):
     Preferred stock, $.01 par value. Authorized 10,000 shares;
       0 shares issued and outstanding at 1996 and 1995...........        --           --
     Common stock, $.01 par value. Authorized 30,000 shares;
       issued and outstanding 8,744 at 1996 and 8,612 at 1995.....        87           86
     Additional paid-in capital...................................    34,363       34,052
     Unrealized holding gain on investments (note 3)..............        32           46
     Retained earnings............................................    16,721       12,643
     Foreign currency translation adjustment......................       106         (34)
                                                                     -------       ------
          Total shareholders' equity...............................   51,309       46,793
                                                                     -------       ------ 
                                                                     $59,045    $  57,220
</TABLE>
 
    See accompanying notes to consolidated financial statements.
 

<PAGE>

                              PROTOCOL SYSTEMS, INC.
                  Consolidated Statements of Shareholders' Equity
                                  (in thousands)

<TABLE>
<CAPTION>
                                                                                         UNREALIZED                   FOREIGN
                                                     COMMON STOCK         ADDITIONAL    HOLDING GAIN                 CURRENCY
                                              --------------------------    PAID IN       (LOSS) ON     RETAINED    TRANSLATION
                                                SHARES       PAR VALUE      CAPITAL      INVESTMENTS    EARNINGS    ADJUSTMENT
                                              -----------  -------------  -----------  ---------------  ---------  -------------
<S>                                           <C>          <C>            <C>          <C>              <C>        <C>
 
Balance at December 31, 1993................       8,223     $      82     $  30,842      $  --         $   3,811    $  --
 
Common stock issued under stock purchase and
  stock option plans........................          88             1           357         --            --           --
Tax benefit from stock option incentive
  plans.....................................      --            --               137         --            --           --
Issuance of common stock....................           1        --               996         --            --           --
Unrealized holding loss on investments (note
  3)........................................      --            --            --               (233)       --           --
Net income..................................      --            --            --             --             3,434       --
                                                  -------    ----------      --------      ---------     ---------   ----------
Balance at December 31, 1994................       8,312            83        32,332           (233)        7,245       --
                                                  -------    ----------      --------      ---------     ---------   ----------
Common stock issued under stock purchase and
  stock option plans........................         155             2           678         --            --           --
Tax benefit from stock option incentive
  plans.....................................      --            --               191         --            --           --
Common stock issued for purchase of
  subsidiary................................         145             1           851         --            --           --
Unrealized holding gain on investments (note
  3)........................................      --            --            --                279        --           --
Net income..................................      --            --            --             --             5,398       --
Foreign currency translation adjustment.....      --            --            --             --            --              (34)
                                                  -------    ----------      --------      ---------     ---------   ----------
Balance at December 31, 1995................       8,612            86        34,052             46        12,643          (34)
                                                  -------    ----------      --------      ---------     ---------   ----------
Common stock issued under stock purchase and
  stock option plans........................         162             2           948         --            --           --
Tax benefit from stock option incentive
  plans.....................................      --            --               531         --            --           --
Vesting of shares issued for purchase of
  subsidiary................................      --            --                92         --            --           --
Repurchase of common stock..................         (30)           (1)       (1,260)        --            --           --
Unrealized holding loss on investments (note
  3)........................................      --            --            --                (14)       --           --
Net income..................................      --            --            --             --             4,078       --
Foreign currency translation adjustment.....      --            --            --             --            --              140
                                                  -------    ----------      --------      ---------     ---------   ----------
Balance at December 31, 1996................       8,744     $      87     $  34,363      $      32     $  16,721    $     106 
                                                  -------    ----------      --------      ---------     ---------   ----------
<CAPTION>

                                                TOTAL
                                               SHARE-
                                               HOLDERS'
                                               EQUITY
                                              ---------
<S>                                           <C>
Balance at December 31, 1993................  $  34,735
Common stock issued under stock purchase and
  stock option plans........................        358
Tax benefit from stock option incentive
  plans.....................................        137
Issuance of common stock....................        996
Unrealized holding loss on investments (note
  3)........................................       (233)
Net income..................................      3,434
                                              ----------
Balance at December 31, 1994................     39,427
                                              ----------
Common stock issued under stock purchase and
  stock option plans........................        680
Tax benefit from stock option incentive
  plans.....................................        191
Common stock issued for purchase of
  subsidiary................................        852
Unrealized holding gain on investments (note
  3)........................................        279
Net income..................................      5,398
Foreign currency translation adjustment.....        (34)
                                              ----------
Balance at December 31, 1995................     46,793

                                              ----------
Common stock issued under stock purchase and
  stock option plans........................        950
Tax benefit from stock option incentive
  plans.....................................        531
Vesting of shares issued for purchase of
  subsidiary................................         92
Repurchase of common stock..................     (1,261)
Unrealized holding loss on investments (note
  3)........................................        (14)
Net income..................................      4,078
Foreign currency translation adjustment.....        140
                                              ----------
Balance at December 31, 1996................  $  51,309
                                              ----------
</TABLE>
 
    See accompanying notes to consolidated financial statements.




<PAGE>

                                       PROTOCOL SYSTEMS, INC.
                              Consolidated Statements of Cash Flows
                                          (in thousands)
 
<TABLE>
<CAPTION>
                                                                               YEAR ENDED DECEMBER 31,
                                                                         ----------------------------------
                                                                            1996         1995       1994
                                                                         ----------   ---------   ---------
<S>                                                                       <C>             <C>        <C>      
Cash flows from operating activities:
     Net income.......................................................   $   4,078    $   5,398  $   3,434
 
     Adjustments to reconcile net income to net cash provided by
       operating activities:
       Depreciation and amortization..................................       2,196        1,802      1,551
       Amortization of bond premium...................................         398          240        217
       Provision for deferred income taxes............................        (125)        (390)      (163)
       Increase (decrease) in cash resulting from changes in:
           Accounts receivable........................................          34       (4,299)      (584)
           Inventories................................................      (2,530)      (1,886)        25
           Prepaid expenses and other assets..........................         148          201       (221)
           Accounts payable and accrued expenses......................         142          428        566
           Income taxes payable.......................................        (845)         471        120
           Reserve for warranties.....................................         (70)          75        (48)
           Deferred revenue and customer deposits.....................          (6)         (59)      (216)
                                                                           --------    ---------   ---------   
           Net cash provided by operating activities..................       3,420        1,981      4,681

Cash flows from investing activities:
     Purchase of investments..........................................      (9,683)     (25,498)   (17,687)
     Proceeds from maturity of investments............................      13,764       22,966     16,612
     Acquisition of property and equipment............................      (2,528)      (2,228)    (1,565)
     Expenditures for software development............................        (205)        (131)      (352)
     Acquisition of intangible assets.................................        (200)          --       (258)
     Cash paid for acquisition of subsidiary, net of cash acquired....         --          (237)        --
                                                                           --------    ---------   ---------   
           Net cash provided by (used in) investing activities........       1,148       (5,128)    (3,250)

Cash flows from financing activities:
     Proceeds from stock option and stock purchase plan and
      related tax benefit.............................................       1,481          871        495
     Issuance of common stock.........................................         --           --         996
     Repurchase of common stock.......................................      (1,261)         --          --
     Proceeds from long-term debt.....................................         --         1,831      1,200
     Principal payments on long-term debt.............................      (1,894)      (1,571)      (494)
                                                                           --------    ---------   ---------   
           Net cash provided by (used in) financing activities........      (1,674)       1,131      2,197
 
Effect of exchange rates on cash and cash equivalents.................          35          (6)         --
                                                                           --------    ---------   ---------    
           Net increase (decrease) in cash and cash equivalents.......       2,929      (2,022)      3,628
 
Cash and cash equivalents at beginning of year........................       3,974       5,996       2,368
                                                                           --------    ---------   ---------    
Cash and cash equivalents at end of year..............................      $6,903   $   3,974   $   5,996
                                                                           --------    ---------   ---------    

Supplemental disclosures of cash flow information:
    Cash paid for interest............................................   $     119   $     179   $     135
                                                                           --------    ---------   ---------   
    Cash paid for income taxes........................................   $   2,364   $   1,255   $   1,190
                                                                           --------    ---------   ---------    

Supplemental schedule of noncash financing activities:
 
    Increase in investment in Protocol Medical Systems, Ltd. due to
      release of compensatory shares of common stock from escrow......   $      91
 
    Fair value of net assets of subsidiary, consisting primarily of
      intangible technology assets, acquired by issuance of common
      stock and liabilities incurred..................................               $     754
 
Equipment capitalized under capital leases............................                           $     135
</TABLE>

See accompanying notes to consolidated financial statements.



<PAGE>
                             PROTOCOL SYSTEMS, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
PRINCIPLES OF CONSOLIDATION
The consolidated financial statements include the accounts of Protocol
Systems, Inc. and its wholly owned subsidiaries (the "Company"). All material
intercompany balances and transactions have been eliminated in consolidation.
 
CASH AND CASH EQUIVALENTS
For purposes of these consolidated financial statements, the Company 
considers all highly liquid securities purchased with an original or 
effective maturity of three months or less to be cash equivalents.
 
INVESTMENTS 
In accordance with the provisions of Statement of Financial Accounting 
Standards No. 115 (SFAS 115), "Accounting for Certain Investments in 
Debt and Equity Securities", all investments in marketable securities are 
classified as available-for-sale and are reported at their fair market value.

Short-term investments consist of highly liquid securities with maturities of 
between three and twelve months from the date of purchase. Long-term 
investments consist of highly-rated state and municipal notes and bonds from 
a variety of issuers with maturities of greater than one year and less than 
two years.
 
INVENTORIES 
Inventories consist primarily of raw materials, work in process, finished 
goods and demonstration instruments and are valued at the lower of cost 
or market. Cost is determined on the first-in, first-out basis (FIFO).
 
PROPERTY AND EQUIPMENT 
Property and equipment is stated at cost. For equipment and furniture and 
fixtures, depreciation is computed using the straight-line method over the 
estimated useful lives of the assets, generally three to five years. 
Leasehold improvements are amortized using the straight-line method over 
a period of five years or the life of the lease, whichever is shorter. 
Depreciation expense, including amortization of capital leases, totaled 
$1,860,000, $1,467,000, and $1,251,000 for 1996, 1995, and 1994, 
respectively.
 
RESEARCH AND DEVELOPMENT EXPENDITURES 
The Company capitalizes certain software development costs incurred in 
accordance with the provisions of Statement of Financial Accounting 
Standards No. 86. These capitalized costs are amortized using the 
straight-line method over the estimated economic life of the software, 
which is not anticipated to exceed three years. The Company capitalized 
software development costs of $205,000, $131,000, and $353,000 in 1996, 
1995, and 1994, respectively.
 
Amortization expense related to capitalized software development costs of 
$244,000, $276,000, and $267,000 was recorded in 1996, 1995, and 1994, 
respectively. Amortization of capitalized software costs is included in cost 
of sales in the consolidated statements of operations. Accumulated 
amortization at December 31, 1996 and 1995 was $1,112,000 and $868,000, 
respectively.
 
All other research and development costs are expensed as incurred.
 


<PAGE>


INTANGIBLE ASSETS
Intangible assets, which are classified as other non-current assets, are 
stated at historical cost less accumulated amortization. The Company 
purchased intangible assets of $258,000 consisting of patents and related 
technology rights in 1994. These assets are amortized using the straight-line 
method over their estimated economic lives of ten years for patents and five 
years for related technology rights. Accumulated amortization of these assets 
was $85,000 at December 31, 1996.
 
The Company acquired the technology rights to the Universal Defibrillator 
Module (UDM), a compact, lightweight, microprocessor-based system, through 
its acquisition in 1995 of Protocol Medical Systems Limited, formerly Omeara 
Limited. The total value assigned to this asset was $1,560,000. Amortization 
of this asset will commence upon the initial sale of a combined 
monitor/defibrillator product.
 
INCOME TAXES 
Deferred tax assets and liabilities are established for the temporary 
differences between the financial reporting basis and the tax basis of the 
Company's assets and liabilities at enacted tax rates expected to be in 
effect when such amounts are realized or settled.
 
FOREIGN CURRENCY TRANSLATION 
The functional currency of the Company's foreign subsidiary, Protocol Medical 
Systems Limited, is the local currency. Assets and liabilities of Protocol 
Medical Systems Limited are translated into U.S. dollars at the current 
exchange rate as of the balance sheet date. Revenues and expenses are 
translated using a weighted average exchange rate for the period presented. 
Adjustments resulting from the translation of the financial statements of 
Protocol Medical Systems Limited are included as a separate component of 
consolidated shareholders' equity.
 
Cash flows from Protocol Medical Systems Limited are calculated using its
functional currency. As a result, changes in assets and liabilities reported on
the consolidated statements of cash flows will not necessarily agree to changes
in the corresponding items on the consolidated balance sheets. The effect of
exchange rate changes on cash balances held in foreign currencies is reported 
as a separate line item in the consolidated statements of cash flows.
 
REVENUE RECOGNITION
Revenue is recognized and all related costs, including warranty, are recorded 
upon transfer of title and risk of loss to the customer which generally 
occurs upon product shipment.
 
NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE
Net income per share is computed using the weighted average number of common 
shares outstanding and dilutive common equivalent shares assumed to be 
outstanding during the period using the treasury stock method. Common 
equivalent shares consist of options to purchase common stock.

USE OF ESTIMATES
These consolidated financial statements were prepared by management in 
conformity with generally accepted accounting principles and necessarily 
include amounts which are based on management's best estimates and judgment. 
Actual results could differ from those estimates.

RECLASSIFICATIONS
Certain reclassifications have been made to the consolidated financial 
statements for 1995 and 1994 to conform to the 1996 presentation.
 

<PAGE>

 
STOCK-BASED COMPENSATION PLANS
 
Prior to 1996, the Company accounted for its stock plans in accordance with 
The provisions of Accounting Principles Board (APB) Opinion No. 25, 
"Accounting for Stock Issued to Employees." Under APB No. 25, compensation 
expense would be recorded on the date of grant of an option only if the 
current market price of the underlying stock exceeded the exercise price 
under the option. Effective for 1996, the Company has adopted Statement of 
Financial Accounting Standards (SFAS) No. 123, "Accounting for Stock-Based 
Compensation", which establishes a fair value method of accounting for stock 
plans. As allowed under SFAS No. 123, the Company has elected to continue to 
apply the provisions of APB No. 25 to its plans covering employees and 
non-employee directors, and to provide pro-forma disclosures of the effects 
of SFAS No. 123 on net income and earnings per share.
 
NOTE 2. INVENTORIES
 
 
<TABLE>
<CAPTION>

                                                                     

The components of inventories are as follows:
(in thousands)                                               1996       1995
                                                              ----       ----
<S>                                                           <C>        <C>
Raw materials...........................................  $   4,921  $   4,106
Work in process.........................................      2,307      2,991
Finished goods..........................................      3,396      1,013
Demonstration instruments...............................      1,792      1,756
                                                             -------    -------
Total inventories.......................................  $  12,416  $   9,866
                                                             ---------  -------

</TABLE>
 
NOTE 3. INVESTMENTS
 
At December 31, 1996, the fair market value of short-term and long-term 
investments was $15,800,000 while short-term and long-term investments stated 
at amortized cost were $15,768,000 resulting in an unrealized holding gain of 
$32,000. At December 31, 1995, the fair market value of short-term and 
long-term investments was $20,293,000 while short-term and long-term 
investments stated at amortized cost were $20,247,000 resulting in an 
unrealized holding gain of $46,000. Unrealized holding gains and losses on 
available-for-sale securities are reported as a separate component of 
shareholders' equity until realized.
 
NOTE 4. SHAREHOLDERS' EQUITY
 
PREFERRED STOCK
The Company is authorized to issue 10,000,000 shares of $.01 par value 
preferred stock. At December 31, 1996, no preferred shares were issued; 
however, 100,000 shares of Series D Junior Participating Preferred Stock had 
been designated and reserved. Additional series of preferred stock may be 
designated and the related rights and preferences fixed by action of the 
Board of Directors.


<PAGE>


COMMON STOCK OPTIONS
 
Pursuant to the Company's 1987 and 1992 stock option plans, the Board of 
Directors has the authority to grant incentive stock options. The incentive 
stock options vest at a rate of 25% per year, with the Board having authority 
to accelerate the vesting schedules. The options expire ten years from the 
date of grant. The incentive stock option price is determined by the Board of 
Directors, but may not be less than the fair market value of the Company's 
common stock on the date of grant.
 
Non-statutory stock options may also be granted pursuant to the 1992 stock 
option plan. The option price for the non-statutory stock options is 
determined by the Board of Directors on the date of grant, but may not be 
less than the fair market value of the Company's common stock on the grant 
date. The outstanding options vest at a rate of 25% per year, with the Board 
having authority to accelerate the vesting schedules. Non-statutory options 
expire ten years from the date of grant.

Pursuant to the Company's 1993 Stock Option Plan for Nonemployee Directors,
each nonemployee director will receive an initial option to purchase 10,000
shares of common stock immediately following the annual meeting of shareholders
at which such director is first elected to the Board of Directors. The initial
option grant vests ratably over a three year period. Following each subsequent
annual meeting of shareholders, each nonemployee director will receive an
additional option, which is immediately exercisable, to purchase 3,000 shares of
common stock. The option price for the non-statutory stock options granted
pursuant to the plan may not be less than the fair market value of the Company's
common stock at the date of grant. Each option expires ten years from the date
of grant.
 
As of December 31, 1996, there were 20,419 and 300,781 stock options
available for grant under the 1987 and 1992 option plans, respectively and
269,000 non-statutory stock options available for grant under the 1993 option
plan. The Company has reserved 1,949,503 shares of common stock for future
issuance pursuant to these plans. The following is a summary of option activity
under the Company's option plans:
 
<TABLE>
<CAPTION>
                                          INCENTIVE               NON-STATUTORY
                                        STOCK OPTIONS             STOCK OPTIONS
                                  -------------------------  ------------------------
<S>                                    <C>         <C>            <C>          <C>  
                                    NUMBER        PRICE        NUMBER        PRICE
                                  OF SHARES     PER SHARE     OF SHARES    PER SHARE
                                  ----------  -------------  -----------  -----------
Outstanding at December 31,
  1993..........................     826,994  $  .35 -11.13   55,000  $  7.25 -11.00
Exercised.......................     (62,131)   1.32 - 8.75     --             -- 
Canceled........................     (69,582)   1.95 -11.25  (17,000)    7.25  -7.75
Granted.........................     256,134     .89 -11.25   34,773     7.75  -9.00
                                  ----------  -------------  -----------  -----------
Outstanding at December 31,
  1994..........................     951,415     .35 -11.00   72,773     7.25 -11.00
Exercised.......................     (97,866)   1.32 -11.00   (7,000)           7.25
Canceled........................     (37,399)   2.55 -12.00      --              --
Granted.........................     182,188    1.06 -12.00   12,000            9.75
                                  ----------  -------------  -----------  -----------
Outstanding at December 31,
  1995..........................     998,338     .35 -12.00   77,773     7.25 -11.00
Exercised.......................    (123,871)    .35 -11.50  (19,000)    7.25 - 9.75
Canceled........................     (33,277)    .89 -26.00     --            --
Granted.........................     381,788   10.50 -26.00   77,552    12.13 -18.75
                                  ----------  -------------  -----------  -----------  
Outstanding at December 31,
  1996..........................   1,222,978  $  .35--26.00  136,325  $  7.25 -18.75
                                  ----------  -------------  -----------  -----------  

</TABLE>

<PAGE>
 
There were 634,803 and 600,109 incentive stock options and 59,807 and 67,841
non-statutory stock options exercisable at December 31, 1996 and 1995,
respectively.
 
SHAREHOLDER RIGHTS PLAN
 
In March 1992, the Board of Directors approved a shareholder rights plan 
and declared a dividend of one preferred share purchase right for each 
outstanding common share. Each right represents the right to purchase one 
one-hundredth of a share of Series D Junior Participating Preferred Stock, 
par value $.01 per share, at an exercise price of $40, subject to adjustment. 
The rights are only exercisable ten days after a person or group acquires, 
or commences a tender or exchange offer to acquire, beneficial ownership of 
20% or more of the Company's outstanding common shares. Subject to the 
terms of the shareholder rights plan and the discretion of the Board of 
Directors, each right would entitle the holder to purchase common shares 
of the Company, or of an acquiring company in certain circumstances, having 
a market value of two times the exercise price of the right. The rights 
expire in March 2002, but may be redeemed by action of the Board of Directors
prior to that time at $.01 per right.
 
EMPLOYEE STOCK PURCHASE PLAN
 
On May 19, 1994, the Company's shareholders approved the 1994 Employee Stock
Purchase Plan. Pursuant to this plan, employees of the Company may elect to
accumulate funds of up to 10% of their cash compensation via payroll deduction
to purchase shares of the Company's common stock. Under the plan, 45,972,
50,295, and 25,474 shares of common stock were issued in 1996, 1995, and 1994,
respectively. The Company has reserved 178,259 shares of common stock for future
issuance under this plan.



<PAGE>

NOTE 5. STOCK-BASED COMPENSATION PLANS

At December 31, 1996, the Company had four plans providing for stock
compensation; three fixed option plans under which options are granted to
acquire company stock at exercise prices equal to 100% of fair value as of the
date the option is granted, and an employee stock purchase plan, which provides
for six-month enrollment periods under which shares may be purchased at 85% of
the lesser of the fair value at the beginning or end of the enrollment period.

The Company applies APB No. 25 in accounting for these plans and,
accordingly, no compensation cost has been recognized with respect thereto. Had
compensation cost for these plans been determined consistent with SFAS No. 123,
the Company's net income and net income per common and common equivalent share
would have been reduced to the pro forma amounts shown in the following table:

<TABLE>
<CAPTION>

                                                              1996       1995
                                                             ------     ------
<S>                                   <C>                    <C>        <C>
Net income (in thousands)             As reported            $4,078     $5,398
                                      Pro forma              $3,155     $5,086

Net income per share                  As reported            $0.44      $0.60
                                      Pro forma              $0.34      $0.57
</TABLE>

The pro forma information presented above includes only the effects of
applying SFAS No. 123 to options granted in 1996 and 1995. Because options
generally vest over a number of years and additional awards are made each year,
the pro forma 1996 and 1995 amounts are not representative of the effect SFAS
No. 123 would have had on net income and earnings per share had it been applied
to options granted prior to 1995.

The fair value of compensation cost reflected in the above pro forma amounts
was determined using the Black-Scholes option pricing model and the following
weighted-average assumptions: (1) risk-free interest rate: 1996--6.14%; 1995 -
6.59%; (2) expected life of option--5 years; (3) expected volatility--.60; and
(4) expected dividends--0%.

Information with respect to the Company's fixed option plans for 1996 and
1995 is provided below:

<TABLE>
<CAPTION>
                                                         WEIGHTED-AVERAGE
                                    NUMBER OF SHARES  EXERCISE PRICE PER SHARE
                                    ----------------  ------------------------
<S>                                 <C>                <C>
  Balance at Dec. 31, 1994          1,024,188                 $ 5.21
      Granted...................      194,188                   9.27
      Exercised.................     (104,866)                  3.17
      Forfeited.................      (37,399)                  7.79
      Expired...................         --                      --
                                   -----------               --------
  Balance at Dec. 31, 1995......    1,076,111                   6.01
                                   -----------               --------
      Granted...................      459,340                  14.64
      Exercised.................     (142,871)                  3.49
      Forfeited.................      (33,277)                 14.66
      Expired...................         --                      --
                                   -----------               --------
  Balance at Dec. 31, 1996......    1,359,303                 $ 8.51
                                   -----------               --------
</TABLE>



<PAGE>
The weighted-average grant date fair value of options granted during 1996
and 1995 was $8.33 and $5.38, respectively. Additional information regarding
options as of December 31, 1996 is as follows:

<TABLE>
<CAPTION>
                                    OPTIONS                                OPTIONS EXERCISABLE
    RANGE OF                      OUTSTANDING                         ------------------------------
    EXERCISE        NUMBER      WEIGHTED-AVERAGE   WEIGHTED-AVERAGE     NUMBER     WEIGHTED-AVERAGE
     PRICES       OUTSTANDING    REMAINING LIFE     EXERCISE PRICE    EXERCISABLE   EXERCISE PRICE
- ----------------  -----------  ------------------  -----------------  -----------  -----------------
<C>               <C>          <S>                 <C>                <C>          <C>
$0.35 -$2.55.....    319,041        4.00 years         $    1.76         314,409       $    1.78
$3.75 -$9.88.....    557,892        6.76 years         $    7.51         347,171       $    7.23
$10.00 -$14.75...    364,170        9.11 years         $   12.85          27,030       $   10.90
$15.00 -$26.00...    118,200        9.55 years         $   18.10           6,000       $   18.75
- -----------------  ---------        ----------         ---------         -------       ---------
$0.35 -$26.00....  1,359,303        6.99 years         $    8.51         694,610       $    5.00
- -----------------  ---------        ----------         ---------         -------       ---------                       
</TABLE>

NOTE 6. LEASES

The Company leases its primary office and manufacturing facilities under
long-term operating leases which expire in December 2000 for the Beaverton,
Oregon facility and June 1997 for the Menomonee Falls, Wisconsin facility. Other
operating leases have been entered into in connection with the lease of
additional office space and capital equipment. Minimum future rental payments
under all operating leases are as follows:
 
<TABLE>
<CAPTION>
              YEAR ENDING
              DECEMBER 31                           (IN THOUSANDS)
             --------------                         --------------
             <S>                                    <C>
                 1997                               $    764
                 1998                                    683
                 1999                                    692
                 2000                                    691
                 2001                                     24
                                                      ------
              Total future minimum lease payments     $2,854
                                                      ------

</TABLE>

Total rental expense for all operating leases was $868,000, $512,000, and
$520,000 for the years ended December 31, 1996, 1995, and 1994, respectively.

NOTE 7. INCOME TAXES

The provision for income taxes consists of the following:

<TABLE>
<CAPTION>
(IN THOUSANDS)                          1996         1995         1994
                                      ---------    ---------    ---------
<S>                                   <C>          <C>           <C>
Current:
  Federal                            $   1,735    $   1,644   $    1,152
  State                                    316          274          322
                                      ---------    ---------    ---------
                                         2,051        1,918        1,474
Deferred:
  Federal                                 (136)        (368)        (144)
  State                                     11          (22)         (19)
                                      ---------    ---------    ---------
                                          (125)        (390)        (163)
                                      ---------    ---------    ---------
     Total                            $   1,926    $   1,528    $   1,311
                                      ---------    ---------    ---------


</TABLE>

                                          27
<PAGE>

A reconciliation showing the reasons for the difference between the
Company's effective tax rate and the Federal statutory income tax rate of 34% is
as follows:

<TABLE>
<CAPTION>
                                                   1996      1995     1994
                                                  -------  -------  -------
<S>                                               <C>       <C>     <C>
Federal statutory rate..........................  34.0%     34.0%     34.0%
State taxes, net of federal benefit.............   4.0       3.5       4.4
Research and experimentation credits............  (3.4)     (2.4)     (5.9)
Tax benefit of foreign sales corporation........  (3.3)     (2.4)     (4.1)
Tax benefit of exempt interest income...........  (4.4)     (4.0)     (5.0)
Decrease in valuation allowance.................  (2.7)     (1.9)       --
Net operating loss carryovers created (utilized)  (3.0)     (4.4)      5.1
Non-deductible acquisition related charges......  11.3        --        --
Other, net......................................   (.4)       (.3)     (.9)
                                                  -------  -------  -------
Effective tax rate..............................  32.1%      22.1%    27.6%
                                                  -------  -------  -------

</TABLE>

The tax effects of temporary differences that give rise to significant
portions of the deferred tax assets and deferred tax liabilities at December 31,
1996 and 1995 are presented below:

<TABLE>
<CAPTION>

(in thousands)                                        1996       1995
- ---------------------------------------------      ----------  ----------
<S>                                                <C>         <C>
DEFERRED TAX ASSETS:
  Reserve for warranties.......................    $     380    $   405
  Inventory valuation adjustments..............          482        559
  Accrued vacation.............................          216        207
  Accrued rent.................................           50         74
  Allowance for doubtful accounts..............           97         82
  Net operating loss carryovers................          330        518
  Federal and state tax credit carryovers......          392        392
  Other........................................          351        309
                                                    ---------  ---------
Gross deferred tax assets......................        2,298      2,546
    Valuation allowance........................         (878)    (1,223)
                                                    ---------  ---------
    Deferred tax assets........................        1,420      1,323
Deferred tax liabilities:
  Depreciation.................................          (67)       (51)
  Intangible technology rights.................         (446)      (413)
  Software development costs...................          (58)       (56)
                                                    ---------  ---------
    Deferred tax liabilities...................         (571)      (520)
                                                    ---------  ---------
Net deferred tax assets........................    $     849    $   803
                                                    ---------  ---------

</TABLE>

The Company has established a valuation allowance for certain deferred tax
assets of $878,000 at December 31, 1996. The valuation allowance was $1,223,000
and $1,492,000 at December 31, 1995 and 1994, respectively. The $345,000
reduction of the valuation allowance recorded in 1996 primarily resulted from
utilization of previously reserved net operating loss carryovers and a change in
the realizability of Pryon deferred tax assets.

Tax benefits of $531,000, $191,000, and $137,000 relating to the Company's
stock option incentive plans were credited directly to stockholders' equity in
1996, 1995, and 1994, respectively.

At December 31, 1996, the Company had available federal net operating loss
carryforwards of $775,000 which expire in 2009 and state net operating loss
carryforwards of $1,281,000 which expire in the years 2007 through 2009. The
Company also had available federal and state research and experimentation tax
credit carryforwards of $289,000 and $90,000, respectively, expiring in the
years 2003 through 2010.



<PAGE>

NOTE 8. DEVELOPMENT AGREEMENTS

In April 1990, the Company entered into a collaborative research and license
agreement with a domestic hospital to design a multiple-patient monitoring
system (the "Acuity System"). The Company provides discounts on certain
equipment purchased by the hospital in recognition of consultation services
performed by key hospital personnel in connection with the development of the
Acuity System. Discounts totaled approximately $124,000, $201,000, and $41,000
in 1996, 1995, and 1994, respectively. In addition, royalties are paid to the
hospital based upon a percentage of the Company's net sales of the Acuity System
and related products to other customers. Royalties paid to date have not been
material.

Royalties in the form of discounts and cash payments pursuant to this
agreement will continue through October 1997 or until the essential
characteristics of the system no longer reflect the design concepts co-developed
by the Company and the hospital. Future royalties and discounts on sales under
this agreement are not expected to have a material effect on the Company's
results of operations.

In January 1990, the Company entered into a development and supply agreement
with a pharmaceuticals corporation whereby the Company will develop and
manufacture a proprietary monitoring and drug administration device for this
corporation. Production of this device for certain international markets began
in 1994. During the years ended December 31, 1996, 1995, and 1994, research and
development expenses incurred by the Company of $54,000, $88,000, and $443,000,
respectively, have been reimbursed to the Company pursuant to this agreement.

NOTE 9. ACQUISITION OF SUBSIDIARY

On July 10, 1996, the Company issued 1,211,100 shares of common stock in
exchange for all of the outstanding capital stock of Pryon Corporation, a
supplier of CO2 monitoring products for medical instrumentation manufacturers.
In addition, the Company issued options to purchase 121,159 shares of the
Company's common stock in replacement of options to purchase Pryon common stock
which were outstanding immediately prior to the acquisition. The acquisition was
accounted for as a pooling of interests and accordingly, the financial
statements of Protocol Systems, Inc., related footnote disclosures and
supplemental financial data have been restated to show the combined results of
the two companies for all periods presented. All material intercompany balances
and transactions between the two entities have been eliminated. Sales and net
income (loss) for the individual entities are shown below for the periods prior
to the acquisition:

<TABLE>
<CAPTION>

            (IN THOUSANDS)                          (IN THOUSANDS)
                             PROTOCOL       PRYON     ADJUSTMENTS    COMBINED
<S>                          <C>           <C>          <C>          <C>
Six months ended
June 30, 1996 (unaudited)
   Sales..................  $  28,806       $6,253       $(1,723)   $ 33,336
   Net Income.............      2,771          501          (129)      3,143

Year ended
December 31, 1995
   Sales..................     49,067       12,276        (1,741)     59,602
   Net Income.............      4,678          818           (98)      5,398

Year ended
December 31, 1994
   Sales..................     41,166        8,001        (1,009)     48,158
   Net Income (loss)......      4,146         (794)           82       3,434

</TABLE>

Charges of $2,097,000, which consisted primarily of investment banking,
legal and accounting fees, were incurred in connection with the acquisition and
were charged to expense in 1996.


<PAGE>

NOTE 10. INDUSTRY AND GEOGRAPHIC INFORMATION

The Company operates in a single industry segment: the design, manufacture,
sale and servicing of medical instruments and systems. Sales are made primarily
to hospitals and other health-care related customers. Credit risk with respect
to accounts receivable is limited due to the large number and geographical
dispersion (both domestically and internationally) of entities which comprise
the Company's customer base. Export sales are made in U.S. dollars. Sales by
geographic region were as follows for the years ended December 31:
 
<TABLE>
<CAPTION>
(IN THOUSANDS)                                1996          1995          1994
- ----------------------------------------    ---------    ---------    ---------
<S>                                         <C>          <C>          <C>
United States...........................    $  41,588    $  40,080    $  31,143
Europe..................................       14,938       11,481        9,696
Asia and Pacific Rim....................        7,836        6,166        5,202
Other...................................        2,532        1,875        2,117
                                            ---------    ---------    ---------
Total Sales.............................    $  66,894    $  59,602    $  48,158
                                            ---------    ---------    ---------

</TABLE>
NOTE 11. QUARTERLY FINANCIAL SUMMARY (UNAUDITED)

<TABLE>
<CAPTION>
                                                                         QUARTERS ENDED
(IN THOUSANDS EXCEPT COMMON STOCK PRICES              --------------------------------------------------
         AND PER SHARE AMOUNTS)                        MARCH 31     JUNE 30    SEPTEMBER 30  DECEMBER 31
- ----------------------------------------------------- -----------  ----------  ------------  ------------
<S>                                                    <C>          <C>        <C>          <C>
1996
Sales.................................................    $16,239     $17,097       $16,193      $17,365
Gross profit..........................................      8,883       9,691         8,954        8,895
Income from operations................................      1,880       1,964         (726)        1,887
Net income............................................      1,553       1,591         (910)        1,844
Net income per common and common equivalent share.....        .17         .17         (.10)          .20
Weighted average number of common and common
  equivalent shares outstanding.......................      9,369       9,537        9,433         9,267

Common stock prices:
  High................................................     $17.50      $26.38       $23.25        $15.75
  Low.................................................      10.50       15.63        15.25         10.00

1995
Sales.................................................    $12,944     $13,343      $15,222       $18,093
Gross profit..........................................      6,838       7,139        7,860         9,972
Income from operations................................        781         652        1,443         3,134
Net income............................................        813         665        1,252         2,668
Net income per common and common equivalent share.....        .09         .07          .14           .29
Weighted average number of common and common
 equivalent shares outstanding........................      8,940       8,911        9,092         9,133

Common stock prices:
  High................................................     $12.00      $13.00       $11.88        $11.50
  Low.................................................       8.75        8.50         9.25          9.88

</TABLE>
 
The Company's common stock began trading on the Nasdaq Stock Market under
the symbol PCOL on March 24, 1992 following the Company's initial public
offering. The above quoted market prices represent the high and low closing sale
prices as reported by Nasdaq for the periods indicated. As of March 14, 1997,
there were 197 stockholders of record of Protocol common stock and approximately
4,900 beneficial owners of common stock. No cash dividends have been paid on the
common stock and the Company does not anticipate paying any cash dividends in
the foreseeable future.


<PAGE>


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
  FINANCIAL DISCLOSURE

Not applicable.






<PAGE>
 
                                     PART III
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
The information required by this item regarding Directors is included under 
the captions "Election of Directors," "Management" and "Section 16(a) 
Beneficial Ownership Reporting Compliance" in the Company's 1997 Proxy 
Statement and is incorporated herein by reference.
 
 
ITEM 11. EXECUTIVE COMPENSATION
 
The information required by this item is included under the caption 
"Executive Compensation" in the Company's 1997 Proxy Statement and is 
incorporated herein by reference.
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
The information required by this item is included under the caption "Stock 
Owned By Management and Principal Shareholders" in the Company's 1997 Proxy 
Statement and is incorporated herein by reference.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
Not applicable.




<PAGE>

                                     Part IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K
 
(a) (1) Financial Statements
        The following finanical statements are set forth in Item 8 of 
        this Annual Report. 

<TABLE>
<CAPTION>
                                                                  PAGE #
                                                                  ------
<S>                                                                <C>
 
Report of Management                                                16
 
Report of Independent Accountants for the years                       
ended December 31, 1996 and 1995                                    16

Consolidated Statements of Operations--Years ended
December 31, 1996, 1995 and 1994                                    17

Consolidated Balance Sheets--As of December 31, 1996 and
1995                                                                18
 
Consolidated Statements of Stockholders' Equity--Years
ended December 31, 1996, 1995 and 1994                              19

Consolidated Statements of Cash Flows--Years ended
December 31, 1996, 1995 and 1994                                    20
 
(a) (2) Financial Statement Schedule: 

   Schedule II--Valuation and Qualifying Accounts                  s-1

   Report of Independent Accountants on Financial
   Statement Schedule                                              s-2

Schedules not listed above have been omitted because the information required 
to be set forth therein is not applicable or is included in the Consolidated 
Financial Statements or notes thereto.
</TABLE>
 



<PAGE>

(a) (3) Exhibits:
 
<TABLE>
<CAPTION>
                                                                                           
                                                                              
                                                                                                   Sequentially  
EXHIBIT                                                                                              Numbered
NUMBER                                       DESCRIPTION                                               Page
- --------                                     -----------                                            -----------

<S>    <C>                                                                                           <C>
    
2.0   Agreement and Plan of Merger dated as of February 20, 1996 Among Protocol 
      Systems, Inc., Protocol Merger Corporation and Pryon Corporation.****
 
3.1   Fourth Restated Articles of Incorporation of Protocol Systems, Inc. *
 
3.2   Restated Bylaws of Protocol Systems, Inc. *
 
4.0   Rights Agreement dated March 20, 1992 between Protocol Systems, Inc. and First 
      Interstate Bank of Oregon, N.A. *
 
10.1  Distribution Agreement dated February 7, 1989 between Protocol Systems, Inc. 
      and Siemens Medical Electronics, Inc. *
 
10.2  Renewal of Distribution Agreement dated July 19, 1991 between Protocol Systems, Inc. 
      and Siemens Medical Electronics, Inc. *
 
10.3   Original Equipment Manufacturer Agreement for Purchase and Sale of Pulse Oximeter 
       Modules dated October 23, 1989 between Protocol Systems, Inc. and Nellcor, Incorporated, 
       and addendum thereto dated January 21, 1992. *
 
10.4   Development and Supply Agreement dated January 26, 1990 between Protocol Systems, Inc. 
       and Gensia Pharmaceuticals, Inc. *
 
10.5   Collaborative Research and License Agreement dated April 1, 1990 between Protocol Systems, 
       Inc. and the General Hospital Corporation (Massachusetts General Hospital). *
 
10.6   Form of Indemnity Agreements between Protocol Systems, Inc. and its Executive Officers and 
       Directors. *
 
10.7   Protocol Systems, Inc. 1987 Key Employee's Incentive Stock Option Plan, as amended on 
       January 21, 1992. *
 
10.8   Protocol Systems, Inc. 1987 Non-Statutory Stock Option Plan, as amended on January 21, 1992. *
 
10.9   Protocol Systems, Inc. 1992 Stock Incentive Plan as amended on January 24, 1995. ****
 
10.10  Business Park Lease dated October 26, 1990 By and Among Protocol Systems, Inc., Koll-Copley 
       Partners and Petula Associates and amendments thereto dated October 16, 1991 and November 6, 1991. *
 
10.11  Amendment to Business Park Lease between Protocol Systems, Inc., Koll-Copley Partners and Petula
       Associates dated October 6, 1993. ***
 
10.12  Amendment to Original Equipment Manufacturer Agreement for Purchase and Sale of Pulse Oximeter 
       Modules dated February 25, 1993 between Protocol Systems, Inc. and Nellcor, Incorporated. ***
 
10.13  Protocol Systems, Inc. 1993 Stock Option Plan for Nonemployee Directors. ****
 
10.14  Protocol Systems, Inc. 1994 Employee Stock Purchase Plan. **

22.0   Subsidiaries of the Registrant.
 
23.1   Consent of Accountants.
 
27.1   Financial Data Schedule.

</TABLE>
- ----------------------------------------

   *   Incorporated herein by reference to the Company's Registration 
       Statement on Form S-1 dated January 22, 1992, File No. 33-45067.
 
  **   Incorporated herein by reference to the Company's Registration Statement
       of Form S-8 dated January 24, 1994, File No. 33-74384.
 
 ***   Incorporated herein by reference to the Company's Annual Report on 
       Form 10-K for the fiscal year ended December 31, 1993.
 
****   Incorporated herein by reference to the Company's Registration 
       Statement of Form S-4 dated April 9, 1996, File No. 333-003316.
 
                                       34

<PAGE>

    (b) No reports on Form 8-K were filed during the quarter ended December 
31, 1996.

                                       35

<PAGE>

                                   SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed 
on its behalf by the undersigned, thereunto duly authorized.
 
                                          PROTOCOL SYSTEMS, INC.
                                          ----------------------
                                               (REGISTRANT)


DATE: MARCH 28, 1997                BY     /S/ JAMES B. MOON 
- ------------------------                  --------------------------
                                               JAMES B. MOON 
                                     PRESIDENT, CHIEF EXECUTIVE OFFICER 
                                               AND CHAIRMAN     


Pursuant to the requirements of the Securities Exchange Act of 1934, 
the registrant has duly caused this report to be signed below by the following 
persons on behalf of the registrant and in the capacities and on the dates 
indicated.

<TABLE>
<CAPTION>

      SIGNATURE                                         TITLE                                DATE
      ---------                                         -----                                ----
     <S>                         <C>                                                        <C>
 
                                  President, Chief Executive Officer and Chairman of        March 28, 1997 
      /s/ JAMES B. MOON           Officer and Chairman of the Board of Directors            --------------
- ------------------------------    (Principal Executive Officer)
        James B. Moon             
                                   
                                
     /s/ CRAIG M. SWANSON         Vice-President, Chief Financial Officer and               March 28, 1997
- ------------------------------    Secretary (Principal Financiial and Accounting Officer)   --------------
         Craig M. Swanson


     /s/ STEVEN E. WYNNE          Director                                                 March  28, 1997
                                                                                           ---------------
- ------------------------------
       Steven E. Wynne
 


   /s/ RONALD S. NEWBOWER, PH.D   Director                                                 March  28, 1997 
- --------------------------------                                                           ---------------
       Ronald S. Newbower, Ph.D



    /s/ DAVID F. BOLENDER         Director                                                 March  28, 1997
- ------------------------------                                                             ----------------
      David F. Bolender
 


   /s/ FRANK E. SAMUEL, JR.       Director                                                 March  28, 1997
- ------------------------------                                                             ---------------
     Frank E. Samuel, Jr.
 

  /s/ WILLIAM NEW, JR., M.D.     Director                                                 March   28, 1997
- ------------------------------                                                            ----------------
    William New, Jr., M.D.
 
</TABLE>



<PAGE>S-1

PROTOCOL SYSTEMS, INC.                 Schedule II
 
                            VALUATION AND QUALIFYING ACCOUNTS
 
<TABLE>
<CAPTION>

                                                                  ADDITIONS      ADDITIONS
                                                    BALANCE AT    CHARGED TO     CHARGED TO                         BALANCE AT
                                                     BEGINNING    COSTS AND        OTHER                              END OF
DESCRIPTION                                           PERIOD       EXPENSES       ACCOUNTS      DEDUCTIONS            PERIOD
- --------------------------------------------------  ----------   -----------    ------------    ----------          -----------
<S>                                                 <C>          <C>            <C>             <C>                  <C>
Year ended December 31, 1994:
  Allowance for doubtful accounts.................     205,000      34,848           --            49,848(1)         190,000
  Allowance for sales returns.....................      50,000      --               --            15,000(2)          35,000
  Inventory obsolescence and valuation reserves...     392,820     614,990           --           143,720(3)         864,090
  Reserve for warranties..........................   1,001,629     382,594           --           405,716(4)         978,507

Year ended December 31, 1995:
  Allowance for doubtful accounts.................     190,000      64,798           --            42,798(1)         212,000
  Allowance for sales returns.....................      35,000      65,000           --             --               100,000
  Inventory obsolescence and valuation reserves...     864,090     484,526           --           286,101(3)       1,062,515
  Reserve for warranties..........................     978,507     577,101           --           502,976(4)       1,052,632

Year ended December 31, 1996:
  Allowance for doubtful accounts.................     212,000     111,321           --            71,321(1)         252,000
  Allowance for sales returns.....................     100,000          --           --             --               100,000
  Inventory obsolescence and valuation reserves...   1,062,515     319,553           --           596,611(3)         785,457
  Reserve for warranties..........................   1,052,632     619,792           --           687,400(4)         985,024
</TABLE>
 
- ------------------------
 
(1) Deductions primarily represent write-offs of accounts receivable during the
    period.
 
(2) Deductions represent reduction of the allowance based on sales return
    history.
 
(3) Deductions primarily represent inventory scrapped or sold during the period.
 
(4) Deductions primarily represent inventory and labor costs incurred repairing
    products under warranty.
 

<PAGE>S-2


INDEPENDENT AUDITORS' REPORT
 
To the Shareholders and Board of Directors of Protocol Systems, Inc.:
 
    Under the date of January 24, 1997, we reported on the consolidated 
balance sheets of Protocol Systems, Inc. and subsidiaries as of December 31, 
1996 and 1995, and the related consolidated statements of operations, 
shareholders' equity, and cash flows for each of the years in the three-year 
period ended December 31, 1996, which are included in the 1996 annual report 
to shareholders. These consolidated finanical statements and our report 
thereon are included in the annual report on Form 10-K for the year 1996. In 
connection with our audit of the aforementioned consolidated financial 
statements, we also have audited the related financial statement schedule as 
listed in the accompanying index. This financial statement schedule is the 
responsibility of the Company's management. Our responsibility is to express 
an opinion on this financial statement schedule based on our audits.
 
    In our opinion, such financial statement schedule, when considered in
relation to the basic consolidated financial statements taken as a whole,
presents fairly, in all material respects, the information set forth therein.


/s/  KPMG Peat Marwick LLP

Portland, Oregon
January 24, 1997












<PAGE>

EXHIBIT 22.0

SUBSIDIARIES OF THE REGISTRANT

  Subsidiary                                     Jurisdiction of Incorporation
  ----------                                     -----------------------------

Pryon Corporation                                         Wisconsin
Protocol Medical Systems Limited,
 formerly Omera Limited                                   Northern Ireland
Protocol U.K. Limited                                     Oregon
Protocol Systems Foreign Sales Corporation                Guam


<PAGE>

Exhibit 23.1

                       Consent of Independent Accountants
                       ----------------------------------                     


The Board of Directors
Protocol Systems, Inc.:

We consent to incorporation by reference in the Registration Statements (Nos. 
33-94912, 33-53992, 33-66272, 33-74384, 33-81104, 333-17703 and 333-17705) on 
Form S-8 of Protocol Systems, Inc. of our reports dated January 24, 1997, 
relating to the consolidated balance sheets of Protocal Systems, Inc. and 
subsidiaries as of December 31, 1996 and 1995, and the related consolidated 
statements of operations, shareholders' equity, and cash flows for each of 
the years in the three-year period ended December 31, 1996, and all related 
financial statement schedules, which reports appear in the December 31, 1996 
annual report on Form 10-K of Protocol Systems, Inc.



                                     /s/  KPMG Peat Marwick LLP


March 28, 1997

       

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM PROTOCOL
SYSTEMS INC'S CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31, 1996 AND
CONSOLIDATED STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 1996 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                           6,903
<SECURITIES>                                    15,800
<RECEIVABLES>                                   15,456<F1>
<ALLOWANCES>                                       252
<INVENTORY>                                     12,416
<CURRENT-ASSETS>                                51,048
<PP&E>                                          12,253
<DEPRECIATION>                                   7,775
<TOTAL-ASSETS>                                  59,045
<CURRENT-LIABILITIES>                            7,265
<BONDS>                                              0
                                0
                                          0
<COMMON>                                            87
<OTHER-SE>                                      51,222
<TOTAL-LIABILITY-AND-EQUITY>                    59,045
<SALES>                                         66,894
<TOTAL-REVENUES>                                66,894
<CGS>                                           30,471
<TOTAL-COSTS>                                   30,471
<OTHER-EXPENSES>                                30,419
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 110
<INCOME-PRETAX>                                  6,004
<INCOME-TAX>                                     1,926
<INCOME-CONTINUING>                              4,078
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,078
<EPS-PRIMARY>                                     0.44
<EPS-DILUTED>                                     0.44
<FN>
<F1>NET OF ALLOWANCE
</FN>
        

</TABLE>


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