Invention Grant
- Patent Title: Apparatus for preventing over inflation of the retention balloon in medical catheters and airway devices
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Application No.: US14341647Application Date: 2014-07-25
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Publication No.: US09623201B2Publication Date: 2017-04-18
- Inventor: Christopher Gregory , Yun Jin , John B. Cline
- Applicant: Christopher Gregory , Yun Jin , John B. Cline
- Applicant Address: US NV Las Vegas
- Assignee: CONVATEC TECHNOLOGIES INC.
- Current Assignee: CONVATEC TECHNOLOGIES INC.
- Current Assignee Address: US NV Las Vegas
- Agency: Wilson Sonsini Goodrich & Rosati
- Main IPC: A61M16/04
- IPC: A61M16/04 ; A61M25/10 ; A61M16/20 ; A61F5/449 ; A61F5/445

Abstract:
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.
Public/Granted literature
- US20150051542A1 APPARATUS FOR PREVENTING OVER INFLATION OF THE RETENTION BALLOON IN MEDICAL CATHETERS AND AIRWAY DEVICES Public/Granted day:2015-02-19
Information query
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