GE 9100c - Theory of Operation; Theory overview; Gas flow through the anesthesia machine; Flow through the breathing system

9100c
xii M1207026
2 Theory of Operation
2.1 Theory overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2 Gas flow through the anesthesia machine . . . . . . . . . . . 2-4
2.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2.2 Physical connections . . . . . . . . . . . . . . . . . . . . . . 2-6
2.2.3 Flow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.3 Flow through the breathing system . . . . . . . . . . . . . . . . 2-8
2.3.1 Overview of flow paths . . . . . . . . . . . . . . . . . . . . . 2-8
2.3.2 Manual ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2.3.3 Mechanical ventilation . . . . . . . . . . . . . . . . . . . . . 2-11
2.4 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.5 9100c Ventilator features . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.5.1 Safety features . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.6 9100c Ventilator components . . . . . . . . . . . . . . . . . . . 2-16
2.6.1 Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2.6.2 Control Sample Board . . . . . . . . . . . . . . . . . . . . . 2-18
2.6.3 Pneumatic Vent Engine . . . . . . . . . . . . . . . . . . . 2-19
2.7 Electronic and electrical components . . . . . . . . . . . . . 2-20
2.7.1 9100c ventilator functional blocks . . . . . . . . . . . . 2-20
2.7.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.7.3 Sealed Lead Acid Battery . . . . . . . . . . . . . . . . . . 2-21
2.7.4 System switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2.7.5 Control Sample Board . . . . . . . . . . . . . . . . . . . . . 2-22
2.7.6 Display Monitor Board . . . . . . . . . . . . . . . . . . . . . 2-23
2.8 Ventilator mechanical subsystems . . . . . . . . . . . . . . . . 2-24
2.8.1 Drive gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.8.2 Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.8.3 Inspiratory flow control valve . . . . . . . . . . . . . . . . 2-25
2.8.4 Exhalation (PEEP) Control . . . . . . . . . . . . . . . . . 2-25
2.8.5 Reservoir and bleed resistor . . . . . . . . . . . . . . . . 2-26
2.8.6 Bellows pressure relief valve . . . . . . . . . . . . . . . 2-26
2.8.7 Mechanical Overpressure Valve . . . . . . . . . . . . . 2-27
2.8.8 Free Breathing Valve . . . . . . . . . . . . . . . . . . . . . 2-27
2.8.9 Breathing Circuit Flow Sensor . . . . . . . . . . . . . . 2-27
M1207027 004 MANUAL−DOC, Technical Reference Manual, Technical Reference Manual for 9100c, English−default
Reproduced from the electronic master in MATRIX