公开(公告)号：EP1028770B1

公开(公告)日：2004-06-23

申请号：EP98951585.3

申请日：1998-11-03

申请人： Scott Health & Safety Ltd.

发明人： TATAREK, Andrew, Richard, Thomas ,  HARRIS, Jonathan, Mark, St. John

IPC分类号： A61M16/20

CPC分类号： A61M16/20 ,  A61M16/0677 ,  A61M16/207 ,  A61M2016/0021 ,  A61M2016/0027

摘要： An oxygen therapy apparatus for supply of oxygen to patients. The device comprises an inlet port (17) for receiving high pressure oxygen from a cylinder and an outlet port (1) for supplying oxygen to a patient, typically via a single tube cannula (not shown). Three valves control the supply of oxygen to the patient: a diaphragm valve (42) senses the pressure at the outlet (1) and, in particular senses whether the patient is inhaling or exhaling. A valve (36) controls the supply of oxygen to the patient via an inlet jet (25) which is selectably closed by a piston (20) incorporating a flexible seat (24). Movement of the piston (20) is in turn controlled by a pilot valve (37) in dependence on the state of the diaphragm valve (42). The device gives a pulsed output to the patient during inhalation, but shuts off during exhalation to economise on the use of oxygen.

摘要翻译： 一种用于向患者供氧的氧疗装置。 该装置包括用于从气缸接收高压氧气的入口端口（17）和用于通常经由单个管插管（未示出）向患者供应氧气的出口端口（1）。 三个阀门控制对患者的氧气供应：隔膜阀（42）感测出口（1）处的压力，特别是感测患者是否正在吸入或呼出。 阀（36）经由入口射流（25）控制对患者的氧气供应，入口射流被可选择地由包含柔性座（24）的活塞（20）封闭。 根据隔膜阀42的状态，活塞20的运动又由导向阀37控制。 该装置在吸入期间向患者提供脉冲输出，但在呼气期间关闭以节省使用氧气。