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1. 发明授权

US4274425A Mouthpiece for a redox gas measuring device 失效
标题翻译：用于氧化还原气体测量装置的口腔
公开(公告)号：US4274425A
公开(公告)日：1981-06-23
申请号：US34853
申请日：1979-04-30
申请人： Dieter Lutz , Peter Krause , Axel Terveen , Volker Eibl
发明人： Dieter Lutz , Peter Krause , Axel Terveen , Volker Eibl
IPC分类号： A61B5/08 , A61B5/083 , A61B5/097 , G01N33/497
CPC分类号： A61B5/097 , G01N33/4972 , Y10T436/204165
摘要： In a device for measuring redox gases, such as alcohol, in a person's breath, a disposable tubular mouthpiece forms an elongated flow passage and is displaceably securable in a measuring head. The mouthpiece has an opening at one end for blowing air into it and openings along its length for directing the air into the measuring head. A check valve is located in the flow passage so that air exhaled into the opening in the end of the mouthpiece can flow to the measuring head, but inhaling on the mouthpiece places the check valve in a closed position. The mouthpiece can be formed of a single molded piece or two tubular portions secured together. The end of the mouthpiece opposite the open end is closed and is spaced from the openings into the measuring head for forming a moisture chamber for collecting saliva.
摘要翻译：在用于测量氧化还原气体（例如酒精）的装置中，在人的呼吸中，一次性管状接口形成细长的流动通道并且可移动地固定在测量头中。吸嘴在一端具有一个开口，用于将空气吹入其中并沿其长度开口，用于将空气引导到测量头中。止回阀位于流动通道中，使得呼出到接口的端部中的开口中的空气可以流到测量头，但是在吸嘴上吸入将止回阀置于关闭位置。吸嘴可以由固定在一起的单个模制件或两个管状部分形成。与开口端相对的接口的端部是封闭的，并且与开口间隔开到测量头中，用于形成用于收集唾液的水分室。

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