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APPARATUS FOR PREVENTING OVER INFLATION OF THE RETENTION BALLOON IN MEDICAL CATHETERS AND AIRWAY DEVICES
专利权人:
ConvaTec Technologies; Inc
发明人:
Christopher Gregory,Yun Jin,John B. Cline
申请号:
US13877890
公开号:
US20140052063A1
申请日:
2012.11.15
申请国别(地区):
US
年份:
2014
代理人:
摘要:
The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port. A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.
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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