Heyer Modular+ - Default Chapter; Table of Contents

Theory of Operation
0 Table of Contents
0 Table of Contents ............................................................................................................................. 3
0.1 Table of Figures ........................................................................................................................ 6
1 General Information.......................................................................................................................... 7
1.1 Guidelines ................................................................................................................................. 7
1.2 Product improvements .............................................................................................................. 7
1.3 Manufacturer’s Liability ............................................................................................................. 7
1.4 Manufacturer’s specification ..................................................................................................... 8
1.5 Updating status ......................................................................................................................... 8
1.6 Warning, Precautions and Notes .............................................................................................. 9
1.6.1 Warnings............................................................................................................................ 9
1.6.2 Precautions...................................................................................................................... 10
1.6.3 Notes................................................................................................................................ 11
2 Theory of Operation ....................................................................................................................... 13
2.1 Microprocessor-Controlled Ventilator...................................................................................... 13
2.2 Patient Module ........................................................................................................................ 13
2.3 Gas Conditioning Unit ............................................................................................................. 13
2.4 The Ventilator Unit .................................................................................................................. 13
2.5 Adjustable Alarms ................................................................................................................... 13
2.5.1 P
max
limiting on alarm violation......................................................................................... 14
2.6 Fresh Gas Decoupling ............................................................................................................ 14
2.7 Compliance compensation...................................................................................................... 14
2.8 Electrical supply ...................................................................................................................... 15
2.8.1 Electrical components...................................................................................................... 16
2.9 Power supply module.............................................................................................................. 17
2.9.1 Connectors on power supply board AVM 2-1.................................................................. 18
2.9.2 Fuses on power supply board AVM 2-1........................................................................... 19
2.9.3 Charging / discharging control for the battery:................................................................. 20
2.9.4 Status Indicators Of Battery Control: ............................................................................... 20
2.10 Module 1.............................................................................................................................. 21
2.10.1 Connectors on module 1.............................................................................................. 22
2.11 Ventilator Module 2, AVM 3-1 and AVM 3-2 ....................................................................... 23
2.11.1 Parts list module 2........................................................................................................ 24
2.11.2 Connectors on module 2.............................................................................................. 24
2.11.2.1 Plug connectors on board AVM 3-1 ........................................................................ 24
2.11.2.2 Plug connectors on board AVM3-2 ......................................................................... 25
2.12 Display................................................................................................................................. 25
2.13 Battery ................................................................................................................................. 25
2.14 Ventilator pneumatic............................................................................................................ 26
2.14.1 Ventilator pneumatic drive............................................................................................ 27
2.14.2 HP pressure reducer .................................................................................................... 27
2.14.3 LP- double stage pressure reducer.............................................................................. 27
2.14.4 Solenoid valves MV1 to MV4 ....................................................................................... 27
2.14.5 Pneumatic driving module............................................................................................ 28
2.14.6 Flow metering module.................................................................................................. 28
2.14.7 Tube color coding......................................................................................................... 28
2.15 The patient module (circle system) ..................................................................................... 29
2.15.1 Front and back side view on the patient module.......................................................... 29
2.15.2 Bottom and back side view on the patient module....................................................... 30
2.15.3 Functional representations of the patient module........................................................ 31
2.15.3.1 CMV mode, inspiration............................................................................................ 32
2.15.3.2 CMV mode, expiration............................................................................................. 33
2.15.3.3 Manual mode, inspiration ........................................................................................ 34
2.15.3.4 Manual mode, expiration......................................................................................... 35
2.15.3.5 Spontaneous mode, inspiration............................................................................... 36
2.15.3.6 Spontaneous mode, expiration................................................................................ 37
2.15.4 Components of the patient module.............................................................................. 38
2.15.4.1 Ventilation bellows system ...................................................................................... 38
2.15.4.2 Manual Respiration Bag / Reservoir........................................................................ 38
2.15.4.3 CO
2
absorber........................................................................................................... 38