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BREATHABLE GAS INLET CONTROL DEVICE FOR RESPIRATORY TREATMENT APPARATUS
专利权人:
发明人:
申请号:
EP11758688.3
公开号:
EP2550052A1
申请日:
2011.03.25
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
A breathable gas inlet control device permits flow regulation at the inlet of a flow generator for a respiratory treatment apparatus such as a ventilator or continuous positive airway pressure device. The device may implement a variable inlet aperture size based on flow conditions. In one embodiment, an inlet flow seal opens or closes the inlet to a blower in accordance with changes in pressure within a seal activation chamber near the seal. The seal may be formed by a flexible membrane. A controller selectively changes the pressure of the seal activation chamber by controlling a set of one or more flow control valves to selectively stop forward flow, prevent back flow or lock open the seal to permit either back flow or forward flow. The controller may set the flow control valves as a function of detected respiratory conditions based on data from pressure and/or flow sensors.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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