发明授权
- 专利标题： Lung ventilator safety circuit
- 专利标题（中）： 肺通气机安全回路
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申请号： US304047申请日： 1994-09-12
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公开(公告)号： US5596984A公开(公告)日： 1997-01-28
- 发明人: John J. O'Mahony , Floyd R. Farnham, III
- 申请人： John J. O'Mahony , Floyd R. Farnham, III
- 申请人地址： KS Overland Park
- 专利权人： Puritan-Bennett Corporation
- 当前专利权人： Puritan-Bennett Corporation
- 当前专利权人地址： KS Overland Park
- 主分类号： A61M16/20
- IPC分类号： A61M16/20 ; A61M16/00
摘要：
The lung ventilator safety valve circuit includes a normally open, pulse width modulated solenoid safety valve connected to a patient airway of a ventilator system. A pressure sensor monitors pressure in the patient airway, and a control unit maintains the safety valve closed when the pressure is not excessive. The safety valve is opened when the sensed pressure equals or exceeds a maximum airway pressure threshold that can be set by an operator, or in the event of a power failure.