Dräger MIcroVent Operating Instructions Manual
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Dräger MIcroVent Operating Instructions Manual

Dräger MIcroVent Operating Instructions Manual

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Ventilator
Operating Instructions
Software 1.n

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  • Page 1 MicroVent Ventilator Operating Instructions Software 1.n...
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  • Page 3 This document is provided for your information only. It will not be exchanged or updated without request. Trademarks The Dräger name and logo are registered trademarks of Drägerwerk Aktienge- sellschaft. The name MicroVent is a trademark of Drägerwerk Aktiengesellschaft. © Drägerwerk Aktiengesellschaft,1995 All rights reserved, Subject to modifications...
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  • Page 5: Table Of Contents

    Pneumatic Connections Electrical Supply Front View Gas Supply Rear View Side View Tests of Readiness for Operation Technical Data MicroVent Checklist Connecting a Test Lung Ambient Conditions Testing Ventilator Function Performance Data Testing O Concentration Alarms Testing Minute Volume Monitoring...

  • Page 6: Introduction Read This First

    Introduction Operator's Responsibility for Patient Safety Limitation of Liability Limitation of Liability Introduction Operator's Responsibility for Patient Safety Dräger, Inc.'s liability, whether arising out of or related to manufacture and sale of the goods, their installation, For correct and effective use of the product and in demonstration, sales representation, use, performance, order to avoid hazards it is mandatory to carefully or otherwise, including any liability based upon Dräger,...

  • Page 7: Warranty

    Warranty Introduction Warranty All Dräger products are guaranteed to be free of defects Application of this warranty is subject to the following for a period of one year from date of delivery. The follow- conditions: ing are exceptions to this warranty: 1.

  • Page 8: Definitions

    Introduction Definitions General WARNINGS and CAUTIONS Definitions General WARNINGS and CAUTIONS WARNING ! WARNING ! A WARNING statement refers to conditions with Strictly follow this Operator's Instruction Manual a possibility of personal injury if disregarded. Any use of the product requires full under- standing and strict observation of all portions of these instructions.

  • Page 9: Precautions During Preparation

    Risk of fire! a service contract through your vendor. • Open and close valves slowly, with smooth turns. Do not use any tools. Maintenance or repair of the MicroVent shall be per- formed only by Dräger authorized technical service representatives. WARNING !

  • Page 10: Precautions During Operation

    Introduction Precautions During Operation Precautions During Care CAUTION ! WARNING ! Always use AC adapter 84 12 709 for connecting Automatic patient ventilation, volume measure- device to 120 V AC line voltage. ment, and alarms are not functional in case of a loss of electric power! Spontaneous breathing through the integrated CAUTION !

  • Page 11: Precautions During Maintenance

    Prevent any foreign objects from getting into the flow WARNING ! sensor. Preventive Maintenance work on the MicroVent Do not use pressurized air for cleaning, the orifice ventilator may be performed by trained and fac- membrane inside the flow sensor may become tory authorized staff only.

  • Page 12: Intended Use

    Ventilation With an Independent Manual Ventilation Device Intended Use Medical Attention MicroVent – time-cycled, volume-constant ventilator for patients with a body weight of at least 15 kg (33 lbs) up WARNING ! to 150 kg (330 lbs). Whenever a patient is connected to the ventila-...

  • Page 13: Overview

    Overview...

  • Page 14: Front Panel

    Overview Front Panel Overview Front Panel On/off switch, ON/OFF The knobs in the center of the front panel set: – ventilator rate Pressure gauge for continuous display of airway – tidal volume pressure – inspiratory time insp Liquid crystal display for Below, grouped together in one field, are the –...

  • Page 15: Preparation

    Assembly Preparation Preparation Installing the Patient Valve Insert silicone membrane into open patient valve - watch for correct orientation of membrane WARNING ! Always verify that valve membrane is installed in correct orientation. Ventilator malfunction will occur if silicone membrane is reversed. Take care not to damage or bend rubber disc inside patient valve.

  • Page 16: Pneumatic Connections

    Pneumatic Connections Attach gas supply line and tighten. Attach pressure sensing lines for flow measurement to connector on MicroVent. CAUTION ! Do not pressurize this connector for pressure sensing lines. It might destroy the internal sensor.

  • Page 17: Electrical Supply

    Electrical Supply Preparation Electrical Supply The MicroVent ventilator is designed for different types of electrical supply. Internal supply with either rechargeable (NiCd) or non-rechargeable (alkaline) internal battery pack. CAUTION ! The internal battery pack will last for up to 2 hours of operation.
  • Page 18 Preparation Electrical Supply Installation before first use when, during charging NiCds, the display shows Defective NiCd and as part of preventive maintenance every 2 years. CAUTION ! Always use alkaline batteries, type IEC LR6 (AA batteries). NOTE: Always use battery holder, part no. 18 35 505, in battery compartment •...
  • Page 19 Preparation Electrical Supply • Remove and disconnect defective or discharged battery pack. – • Remove used alkaline batteries from battery holder and replace with 6 new batteries (where applicable). NOTE: Watch for correct polarity when inserting new batteries. – – •...
  • Page 20 Voltage fluctuations in on-board supplies can be sig- nificant, e.g. due to varying load conditions. They may exceed the input tolerances specified for MicroVent . The DC/DC converter conditions these types of sup- plies to provide a constant voltage of approximately 12 V DC.

  • Page 21: Gas Supply

    Do not install flow restricting valves or flow me- ters into the high pressure gas supply. Equip- ment malfunction might result. Gas supply with O -Air mixer 1 Connect air and oxygen high pressure hoses to oxygen blender. 2 Connect blender outlet to gas inlet on MicroVent.
  • Page 22 • Attach pressure regulator for delivery pressure of 38 to 84 psi ( = 2.7 to 6.0 bar), nominal pressure 50 psi to oxygen cylinder. • Connect MicroVent with DISS high pressure hose to oxygen regulator. • Open valve slowly and completely.

  • Page 23: Tests Of Readiness For Operation

    Tests of Readiness for MicroVent Checklist NOTE: A copy of this checklist is pro- vided on a plastic card. Keep it with Operation the ventilator and use for checks before each use of the ventilator Actual What Required Expiratory valve, flow sensor with...

  • Page 24: Connecting A Test Lung

    Connecting a Test Lung Tests of Readiness for Operation Tests of Readiness for Operation to be performed: each time after exchanging the patient valve each time after cleaning and reassembly at least every 6 months. NOTE: Always log checks for documentation purposes. Connecting a Test Lung (part no.

  • Page 25: Testing Ventilator Function

    The self test will be completed after no more than 6 seconds Display: Self test O.K. MicroVent will now ventilate the test lung with the preset ventilation pattern. The pressure gauge should alternate between a consistent inspiratory pressure and an endexpiratory...

  • Page 26: Testing O 2 Concentration

    Testing O Concentration Tests of Readiness for Operation Testing Minute Volume Monitoring Testing O Concentration using an independent, external oxygen analyzer Set mixer to 50 vol.% O Measured O concentration should be in the range of 50 ±5 vol.%. Testing Minute Volume Monitoring Set lower alarm limit to 7 L/min.

  • Page 27: Testing Peep

    Tests of Readiness for Testing PEEP Operation Testing »Paw high« Alarm Testing PEEP Set knob »PEEP« to 0 cmH Value on pressure gauge at end of expiration: O ±2 cmH 0 cmH O tolerance. Set knob »PEEP« to 10 cmH Value on pressure gauge at end of expiration: O ±2 cmH 10 cmH...

  • Page 28: Testing "Paw Low" Alarm

    Testing »Paw low« Alarm Tests of Readiness for Operation Testing »Main supply« Alarm Testing SIMV Synchronization Testing »Paw low« Alarm Using the previous settings: Remove test lung After about 15 seconds, the red alarm status light should be flashing and the display showing: CMV MV = 0 Paw low The intermittent audible alarm should also be set off.

  • Page 29: Testing Pressure Support Ventilation

    Testing Readiness for Testing Pressure Support Ventilation Operation Testing Pressure Support Ventilation Set switch for ventilator modes to SIMV/CPAP, knob »f« to 0 bpm, knob »PS« to 25 cmH Knob «PEEP« to 10 cmH Squeeze test lung a little, release and observe diameter: The airway pressure should rise to 25 cmH ±3 cmH...

  • Page 30: Operation

    Controlled Mandatory Ventilation (CMV) For ventilator rates of 5 to 60 bpm. NOTE: During CMV, the MicroVent ventilator limits the 2 3 1 minimum ventilator rate to 5 bpm. Set switch for ventilator modes to CMV Set knobs »f«...
  • Page 31 Operation Controlled Mandatory Ventilation (CMV) If the expiratory minute ventilation is less than 2 L bpm, display will show: Display: CMV MV = 0 Evaluate max. airway pressure Paw from pressure gauge. Set knob »Pmax« to approximately 10 cmH O above max.

  • Page 32: Assist Control Ventilation

    Assist Control Ventilation (A/C) Operation Synchronized Intermittent Ventilation (SIMV) Assist Control Ventilation(A/C) Under A/C, mandatory ventilator breaths can be triggered within a time window to synchronize them with the patient's spontaneous breathing. The ventilator rate is then higher than the rate set. If spontaneous breathing does not occur, the ventilator applies mandatory breaths at the set (minimum) rate.
  • Page 33 Operation Synchronized Intermittent Ven- tilation (SIMV) For rates of 2 to 60 bpm Tidal volume (V ), ventilator rate, and inspiratory time ) determine the delivery of mandatory breaths. insp Set switch for ventilator modes to SIMV/CPAP. Adjust pattern of mandatory ventilator breaths by setting: knob »V «...

  • Page 34: Continuous Positive Airway Pressure (Cpap) / Pressure Support

    Continuous Positive Airway Operation Pressure (CPAP) / Pressure Support Continuous Positive Airway Pressure (CPAP) / Pressure Support WARNING ! Use CPAP mode only for patients who have suffi- cient spontaneous breathing. Checking for sufficient spontaneous breathing on pressure gauge: Patient must be capable of generating a negative pressure of at least 2 cmH O during inspiration.

  • Page 35: Pressure-Limited Ventilation

    Operation Pressure-limited ventilation Continuous audible alarm and flashing of red alarm status light both continue. When spontaneous breathing is insufficient: switch to SIMV or CMV. To switch off apnea ventilation: press key twice. Pressure-limited ventilation Use optional pressure limiting valve 8405390! Draw ventilation hose off twin nozzle of the humidifier.

  • Page 36: Displaying Measured Ventilation Parameters

    Operation Displaying Measured Ventilation Parameters Displaying Measured Ventilation Parameters Both ventilation mode set and expiratory minute volume (MV) are displayed continuously in the top line of the LCD screen. In the bottom line, different ventilation parameters can be displayed, depending on the current mode of ventilation (see the following examples): During CMV Inspiratory Flow...

  • Page 37: End Of Operation

    Disconnect high pressure hose quick connect probe from wall terminal. Storage of ventilator for an extended period of time When MicroVent is not going to be used for more than 2 months: Remove battery pack with alkaline batteries (where applicable) NOTE: Rechargeable batteries may remain in the ventilator.

  • Page 38: In Case Of Loss Of Electric Power

    Operation In Case of Loss of Electric Power In Case of Loss of Electric Power NOTE: In case of an AC power failure (blackout), automatic ventilation, volume measurement and alarms continue to operate. If this situation has occurred, ventilator display shows: main supply down Acknowledge = press key.

  • Page 39: Time Limits For Battery Powered Operation

    NiCd pack or battery pack: Press key after switching on. NOTE: It is not possible to operate MicroVent without an internal power supply (NiCd pack or battery pack). When batteries near the end of capacity, the display will show, respectively: Charge NiCd Change bat.
  • Page 40 Time Limits for Battery Operation Powered Operation If necessary: ventilate patient with resuscitation bag, install new battery pack (see page 17), connect ventilator to external electrical power (see pages 17-20).

  • Page 41: Alarms

    Operation Alarms Alarms In case of an alarm: The red alarm status light will be lit / blinking, and an audible alarm will be generated: as a continuous or intermittent audible alarm (WARNINGS) as a 30 second chirp (Advisory), and an alarm message will be displayed on the 2nd line of the display.

  • Page 42: Care Disassembly

    Disassembly Care Care Always clean and disinfect expiration valve and (reusable) patient circuit after each use. Clean ventilator and high pressure hoses according to visual check of cleanliness and/or established hospital procedures. Disassembly WARNING ! Always follow accepted hospital procedures for handling equipment contaminated with body fluids.

  • Page 43: Disassembling The Patient Valve

    Care Disassembling the Patient Valve Disassembling the Humidifier Disconnect flow-measuring hoses from nipples on ventilator. Disconnect expiratory valve from ventilator. Disassembling the Patient Valve Turn lid 90º counterclockwise = disengage and remove. Remove silicone membrane. Do not further disassemble the patient valve! CAUTION ! Prevent any foreign objects from getting into the ventilator valve.

  • Page 44: Disinfecting/Sterilizing

    Disinfecting/Sterilizing Care Disinfecting / Sterilizing Bath disinfection: Use for disassembled parts of the patient valve, flow sen- CAUTION ! sor, ventilator circuit (where applicable), pressure sen- Certain components of the ventilator consist of sing hoses for flow measurement. materials that are sensitive to certain organic sol- Disinfect by immersion in disinfectant solution, follo- vents sometimes used for cleaning and disinfec-ting wing manufacturer's instructions.

  • Page 45: Inspection And Maintenance

    - this applies also when returning ventila- tors or parts for repair. Preventive Maintenance WARNING ! Preventive Maintenance work on the MicroVent ventilator may be performed by trained and factory authorized staff only. Refer to schedule to the right for preventive maintenance...

  • Page 46: Changing A Fuse

    In case of contamination, wash off with soap immediately. Extended Storage When MicroVent is not going to be used for more than 3 months: Remove battery pack with alkaline batteries (where applicable) NOTE: Rechargeable batteries may remain in the ventilator.

  • Page 47: Customer Service Mode

    " rotary knob to max. = 1.5 L 4 Press keys and hold down While holding down these keys: 1 On / off switch to I (ON) MicroVent performs self-test, then display: Customer Service Mode Release keys. Display: Adjust language <-...
  • Page 48 Customer Service Mode The language for the display texts is selected via mode step 001. MicroVent is supplied with English texts as standard. The following can be selected as alternatives: German (deutsch) International English (english) International French (français) Spanish (español)
  • Page 49 Customer Service Mode Other mode steps: 002 Check medical gas supply: Pressure high Pressure low 003 Test switch for ventilation modes: Pos. IPPV/SIPPV Pos. SIMV/CPAP 004 Check settings of rotary knob for minute volume alarm limits MV-low = XX.XX MV-high = XX.XX 005 Sound source test, lamp test, display test INFO TEST ON...

  • Page 50: Troubleshooting

    Troubleshooting Troubleshooting Alarm screen messages are displayed hierarchically, The table below is intended as a quick reference for i.e., in order of priority. recognizing and correcting causes of alarms. If, for example, two faults are detected simultaneously, NOTE: The messages in the table are listed in the more serious fault will be displayed.
  • Page 51 Troubleshooting Problem / Message Likely causes Remedy Measured value MV = 0 Measured minute volume is less than 2 L/min. Patient hyperventilates. MV high Alarm status light flashing, Upper alarm limit too low. Adjust upper alarm limit. intermittent audible alarm. Flow sensor defective or dirty.
  • Page 52 Troubleshooting Problem / Message Likely causes Remedy Ventilation hose kinked . Unkink ventilation hoses. PEEP-high Alarm status light flashing, intermit- tent audible alarm. Press.Supp.> 4 s Leak in patient connection or in hose Make sure connections are tight system. Diaphragm in ventilation valve Install diaphragm correctly or replace.

  • Page 53: What's What

    Front View What's What What's What Front view 14 Liquid crystal display for minute volume and other Pressure gauge for airway pressure measured parameter values, for alarms and advisory Knob for pressure limitation »P «; continuously messages. adjustable from 20 to 80 cmH 15 Knob for ventilator rate »f«, continuously adjustable Double function knob for upper and lower alarm from 5 to 60 bpm in CMV and from 2 to 60 bpm in...

  • Page 54: Rear View

    What's What Rear View Rear View Ventilator air intake and exhaust WARNING ! Do not block air intake! Ventilator malfunction will result. Air intake label Identification plate Compartment for internal power source, either rechargeable NiCd battery pack or battery pack with 6 AA batteries.

  • Page 55: Side View

    Side View (Right) What's What Side View (Right) Inspiratory port, 22mm ISO taper Connector nipples of pressure sensing lines (flow measurement ) DISS connector for high pressure gas supply , Air or O -Air mixture), 40 to 87 psi Connector for external DC voltage (AC adapter 84 12 709 or vehicle power supply with converter 84 12 071) Expiratory valve...

  • Page 56: Technical Data

    Technical Data Ambient Conditions Performance Data Technical Data Expiratory minute min. 2.0 L/min NOTE: Specifications are given conforming to ISO 5369. ventilation MV max. 25.0 L/min Ambient Conditions with I:E = 1:1.5 and effective flow range of 10 to 80 L/min For operation Temperature 14 to 122 ºF (–10 to 50 °C)

  • Page 57: Alarms

    Paw high WARNING ! alarm is activated when set value of Pmax is reached. MicroVent is not intended to be used with gas mixtures of nitrous oxide Alarm is activated when no air- Paw low way pressure difference of at ±...

  • Page 58: Physical Characteristics

    Time of operation with max. 2 hours at 41 to 122 ºF internal NiCd or alkaline (5 to 50 ºC) The MicroVent ventilator has been tested for electromag- battery pack with typical settings netic compatibility according to the following standards...

  • Page 59: Theory Of Operation

    Theory of Operation Symbols for Pneumatic Components Gas Supply CMV/SIMV Theory of Operation PEEP Press. Control Insp./Exsp. Gasmischer O2/Air Blender / AIR Patient ∆ IPPV/ SIMV/CPAP SIMV/CPAP Flow Symbols for Pneumatic Components Gas Supply The supply gas (O , Air, or mixture as required) pro- vided by an oxygen blender is cleaned through filter 1 Filter and reduced to a constant pressure with pressure...

  • Page 60: Cpap

    CPAP Theory of Operation Pressure Support PEEP Press. Control Insp./Exsp. Gasmischer O2/Air Blender / AIR Patient ∆ IPPV/ SIMV/CPAP SIMV/CPAP Flow CPAP If the gas supply fails, additional ambient air can be Monitored by pressure sensor 5, 3/2 way valve 4 drawn via an additional valve 23.

  • Page 61: Parts List

    Parts List Parts List Item No. Name Order No.. Item No. Name Order No. MicroVent 84 13 050 Hose clip 84 03 566 Ventilator mount 84 13 047 Corrugated hose 84 02 041 Blender 84 13 046 Pack of catheter connectors,...

  • Page 62: Glossary

    Glossary Glossary Inspiratory time insp Assist Control Ventilation. synchronized controlled ventilation with Tidal volume intermittent positive pressure Alarm silence Alarm Controlled Mandatory Ventilation Internal power supply CPAP Continuous Positive Airway Pressure External DC power being supplied (from Breathing AC adapter) Spontaneous breathing with continuous positive airway pressure Synchronized ventilator breath...

  • Page 63: Ordering Information

    Ordering Information Ordering Information Name and Description Order No. Basic ventilator MicroVent, USA 84 13 050 consisting of: ventilator unit, expiratory valve, flow sensor, flow sensor lines, 90° elbow connector Accessories required for operation Ventilator mount (incl. connecting hoses) 84 13 047...

  • Page 64: Index

    Index Index perating time............39 bbreviations and symbols ........59 Operation..............34 Accessories ............6,57 end of..............37 Alarms................39 theory of..............59 Ambient conditions............. 52 with alkaline batteries..........17 Assembly ..............22 with NiCd pack............17 Assist Control, using..........32 Ordering information ..........63 Overview..............13 acterial filter............. 16 Oxygen concentration, testing ........26 Batteries, disposal............
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  • Page 68 These Instructions for Use apply only to MicroVent with Serial No.: If no Serial No. has been filled in by Dräger these Instructions for Use are provided for general information only and are not intended for use with any specific machine or device.

This manual is also suitable for:

84 13 050

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