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1. 发明授权

US5839436A Demand valve with a reduced manual flow control 失效
标题翻译：需求阀具有减少的手动流量控制
公开(公告)号：US5839436A
公开(公告)日：1998-11-24
申请号：US512129
申请日：1995-08-07
申请人： Thomas F. Fangrow, Jr. , Donald G. Rulifson
发明人： Thomas F. Fangrow, Jr. , Donald G. Rulifson
IPC分类号： A61M16/20 , A62B9/02 , A62B7/04 , F16K31/26
CPC分类号： A62B9/02 , A61M16/20
摘要： A demand valve resuscitator having a reduced manual flow control. The resuscitator connects between a source of pressurized gas and a breathing mask. A patient may draw a flow of gas on demand through the resuscitator by inhaling. A pressure-responsive diaphragm within a pressure chamber, actuated on demand or manually, acts on a tilt valve in a gas intake port. Alternatively, an attendant may supply a reduced flow of gas to a patient by depressing a manual control button, which tilts the intake valve. The manual control of the gas flow is overridden by excess pressure within the pressure chamber of the resuscitator and the button must be released to reassert manual control. A baffle plate in the pressure chamber provides a venturi assist to reduce pressure adjacent the diaphragm to enable the patient to obtain maximum gas flow on demand with slight inhale suction. An anti-suffocation valve allows the patient to breath ambient air in the absence of a predetermined gas inlet pressure. The anti-suffocation valve is disposed in an intake assembly having an inlet fitting capable of swiveling without affecting the operation of the tilt valve.
摘要翻译：具有减少的手动流量控制的需求阀复苏器。复苏器连接在加压气体源和呼吸面罩之间。患者可以通过吸入通过复苏器根据需要吸入气体。压力室内的压力响应膜片按需或手动地起动，作用在进气口中的倾斜阀上。或者，服务员可以通过按下倾斜进气门的手动控制按钮来向患者提供减少的气体流。气体流量的手动控制被复原器压力室内的过压压力所覆盖，并且必须释放按钮以重新进行手动控制。压力室中的挡板提供文丘里辅助以减少隔膜附近的压力，以使得患者能够在轻微吸入吸气的情况下获得最大气流。抗窒息阀允许患者在没有预定的气体入口压力的情况下呼吸环境空气。防窒息阀设置在具有能够旋转的入口配件的进气组件中，而不影响倾斜阀的操作。

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