|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||128/205.18 ; 128/204.23 ; 128/204.26|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 190 인용 특허 : 22|
A piston ventilator is provided which advantageously monitors the positive end expiratory pressure (PEEP) in a patient circuit for supplying breathable gas to a patient, and controls a shiftable valve element in an exhalation valve to regulate the amount of resistance during the exhalation portion of the patient's breath. The shiftable element is preferably an inflatable diaphragm which receives a pneumatic signal through a signal conduit. The pressure provided by the signal conduit is controlled by the amount of gas vented by a PEEP valve, wherein the g...
[ We claim:] [1.] A patient ventilator comprising:a piston and cylinder assembly;a patient circuit for delivering gas from said piston and cylinder assemblyto a patient during patient inhalation, said patient circuit including:an exhalation valve including a valve element responsive to a pneumatic signal for shifting between an open position, a closed position, and a range of intermediate positions in corresponding relationship to said pneumatic signal;a signal conduit in fluidic communication with said exhalation valve for delivering gas to said valve e...