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1. 发明授权

US4372336A Chest drainage unit 失效
标题翻译：胸排水单位
公开(公告)号：US4372336A
公开(公告)日：1983-02-08
申请号：US160447
申请日：1980-06-17
申请人： William D. Cornell , Ronald Crouther , Howard P. Dyer , Alan B. Ranford
发明人： William D. Cornell , Ronald Crouther , Howard P. Dyer , Alan B. Ranford
IPC分类号： A61M1/00
CPC分类号： A61M1/0013 , A61M1/0031 , A61M1/0035 , Y10T137/3109
摘要： An improved, four-chamber chest drainage system include (1) a collection chamber for collecting blood and other liquids to be drained from the pleural cavity of a patient, (2) an underwater seal chamber for preventing contamination of the patient's pleural cavity by atmospheric air, (3) a manometer chamber for accurately indicating the negative pressure in the patient's pleural cavity, and (4) a suction control chamber for regulating the amount of negative pressure (or suction) applied to the patient's pleural cavity. The suction control chamber has a flexible diaphragm adapted to flex in response to increased negativity above a predetermined level to block the opening to the suction source until the negativity returns to the predetermined level. A combination vent valve-and-filter assembly permits ready venting of the collection chamber to filtered atmospheric air.
摘要翻译：改进的四室胸腔引流系统包括（1）用于收集血液和从患者胸膜腔排出的其它液体的收集室，（2）用于防止患者胸膜腔被大气污染的水下密封室空气，（3）用于准确地显示患者胸膜腔中的负压的压力计室，以及（4）用于调节施加到患者胸膜腔的负压（或抽吸）量的抽吸控制室。抽吸控制室具有适于响应于高于预定水平的增加的负值而弯曲的柔性隔膜，以阻止到吸入源的开口，直到消极返回到预定水平。组合排气阀和过滤器组件允许收集室准备排空到过滤的大气中。

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