Respironics 950 Instruction And Service Manual
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Respironics 950 Instruction And Service Manual

Respironics 950 Instruction And Service Manual

Finger pulse oximeter
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Instruction and Service Manual
Model 950
Finger Pulse Oximeter
0459

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Summary of Contents for Respironics 950

  • Page 1 Instruction and Service Manual Model 950 Finger Pulse Oximeter 0459...
  • Page 2 The information in this manual has been carefully checked and is believed to be accurate. In the interest of continued product development, RESPIRONICS, INC. reserves the right to make changes and improvements in this manual and the products it describes at any time, without notice or obligation.

  • Page 3: Table Of Contents

    Table of Contents Contraindications, Warnings, and Cautions ......1 Introduction ................3 Description................... 3 The 950 at a Glance ..............4 Intended Use ................6 Operating Instructions............7 Getting Started ................7 Lanyard and Lanyard Lock............8 Battery Requirements ..............9 Inserting New Batteries..............
  • Page 4 Figure 1. Top digital display illustration and bottom label..4 Figure 2. Lanyard and lock............. 8 Figure 3. Inserting new batteries........... 10 Figure 4. Applying the 950........... 11 Figure 5. Maintenance choices..........15 Glossary of Symbols SYMBOL...

  • Page 5: Contraindications, Warnings, And Cautions

    Cardiogreen and other intravascular dyes, depending on the concentration, may affect SpO 2 accuracy. The 950 must be able to measure the pulse properly to obtain accurate SpO 2 measurement. Verify that nothing is hindering the pulse measurement before relying on the SpO 2 measurement.
  • Page 6 Check application site periodically (at least every thirty minutes) to determine circulation, positioning and skin sensitivity. The 950 may not work for all patients. If you are unable to achieve stable readings, discontinue use. Finger nail polish may reduce light transmission and thereby affect SpO 2 accuracy.

  • Page 7: Introduction

    Respironics, Inc. has integrated the finger clip sensor and the electronics of the Respironics Model 920 hand held Pulse Oximeter into one unit, the Model 950. The 950 is very small (1.3 inch W x 1.3 inch H x 2.2 inch L) and lightweight (2 ounces).

  • Page 8: The 950 At A Glance

    The 950 at a Glance Serial %SpO Display Number Heart Rate Display Battery Perfusion Display Polarity Markings Finger Grip Figure 1. Top digital display illustration and bottom label.
  • Page 9 950 senses that the finger has been removed. The last measured SpO 2 and pulse rate values freeze for ten seconds, then the displays go blank. • The label on the bottom of the 950 lists the model number, serial number, CAUTION statement, and battery polarity indicators.

  • Page 10: Intended Use

    (ISO 9919) dictate it be labeled, “Not for continuous monitoring”. CAUTION: Check application site periodically (at least every thirty minutes) to determine circulation, positioning and skin sensitivity. CAUTION: The 950 may not work for all patients. If unable to achieve stable readings, discontinue use.

  • Page 11: Operating Instructions

    Operating Instructions Getting Started 1. Read this entire manual. 2. Thread the lanyard through the lanyard holes on the 950 following the instructions on page 8, Lanyard and Lanyard Lock. 3. Insert the batteries following the instructions on page 10, Inserting New Batteries.

  • Page 12: Lanyard And Lanyard Lock

    Lanyard and Lanyard Lock A lanyard is provided for the convenience of wearing the 950 around the neck or wrist. The 950 will function with or without the lanyard. 1. Thread the ends of the lanyard through the lanyard holes as shown below in Figure 2.

  • Page 13: Battery Requirements

    Do not use different types of batteries at the same time or mix fully charged and partially charged cells at the same time, as the batteries may leak. CAUTION: Batteries must be removed if the 950 is going to be stored for more than one month or batteries may leak.

  • Page 14: Inserting New Batteries

    Inserting New Batteries 1. Loosen the screw at the end of the 950 using a coin or a standard flat screwdriver and remove the battery door. 2. Remove the old batteries and dispose of them properly. Figure 3. Inserting new batteries.

  • Page 15: Activating The 950

    Activating the 950 Activate the 950 by inserting the patient's finger into the pulse oximeter as shown in Figure 4. (The 950 determines that a finger has been inserted and then automatically activates the display.) Figure 4. Applying the 950.

  • Page 16: Verifying Operation

    The 950 may interpret motion artifact of sufficient amplitude and regularity as good perfusion (green). CAUTION: Finger nail polish may reduce light transmission and thereby affect SpO 2 values. NOTE: If the pulse signal is inadequate for a 2-minute period the 950 will automatically power down.

  • Page 17: Conditions That May Affect Use

    SpO 2 values. While on the finger, do not press the 950 against any surface and do not squeeze or hold the 950. The external spring provides the correct pressure on the finger;...

  • Page 18: Maintenance

    Storage Requirements Store the 950 within the stated temperature and humidity storage specifications. Refer to page 19, Specifications. CAUTION: Batteries must be removed if the 950 is going to be stored for more than one month or batteries may leak.

  • Page 20: Theory Of Operation

    Theory of Operation Oximetry The pulse oximeter shines red and infrared light through the tissue and detects the fluctuating signals caused by arterial blood pulses. The ratio of the fluctuation of the red and infrared light signals received determines the oxygen saturation content. Conditions such as steady venous blood flow, skin thickness, fingernail thickness, etc., do not affect the saturation reading because they are constant and do not cause fluctuations.
  • Page 21 SpO 2 = 950 determined and numerically displayed oxygen saturation in percent O 2 Hb = Fractional oxyhemoglobin...

  • Page 22: 950 Averaging

    950 Averaging For pulse rates below 112 BPM the averaging calculation is based on a 4-beat exponential average for SpO 2 (see below) and an 8-beat sliding average for pulse rate. For pulse rates above 112 BPM the averaging is doubled and then re-doubled above 225 BPM. The pulse oximeter will not include questionable pulses in the average.

  • Page 23: Specifications

    Specifications 1. Oxygen Saturation 0 to 100% Range 2. Pulse Rate Range 18 to 300 pulses per minute 3. Displays Patient Indicators Tri-color perfusion light emitting diode (LED) Digital Displays Two 3-digit 7-Segment LEDs 4. Measurement Wavelengths Red: 660 nanometers @ 3 mw nominal Infrared: 910 nanometers @ 3 mw nominal 5.

  • Page 24: Parts And Accessories

    950 External Spring 100-0340-00 Lanyard Cord and Lock (Black) Accessories The following accessories function with the Respironics 950: • Model 960 Finger Phantom (pulse oximeter testing device) For information regarding parts and accessories, contact your local sales representative or distributor.

  • Page 25: Warranty

    RESPIRONICS reserves the right to replace the Model 950 with a comparable unit. Shipping costs are the responsibility of the purchaser. Any replacement parts or units are warranted for the remainder of the original warranty period.

  • Page 26: Troubleshooting Guide

    Depleted batteries. Replace batteries. See page 10. 950 not attached to Apply 950 to patient. patient. See page 11. 950 turned off while on Remove 950 from finger. finger, then reinsert finger. Minus (-) sign in left Poor signal. Reposition finger.

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