GE Aespire 7100 Technical Reference Manual page 39

2 Th eory of Operation
Manual 饵plratlon
Th e Bag
,lV
ent switch keeps the ventilator path closed (8).
Gas f1 0ws from 由e patient (4) , through a unidirectional valve (expiratory check valve) ,
and into the bag (5).
During exhalation , fresh gas flows bac阳ards through the absorber (FG) into 由e
expiratory limb , downstream of the expiratory check valve.
For machines that are plumbed to return sample gas to the breathing system , the
retumed gas (SGR) enters the breathing system after the expiratory check valve.
费礼
AP Airway Pr essure
B Ba
gN
ent switch to Bag
FG FreshGas
SGR Sample Gas Retum
4 Expiratory flow
5
Flow to bag
Rgure
2-5 •
Row during manual expiration
M1110140
08/07
2-13