Stoma closure devices
First Claim
1. A closure device for a body channel, the device comprising an inflatable bung for insertion into said body channel, which bung is provided with an interior void for permitting inflation thereof, a reservoir formed integrally with said device, and means for enabling the passage of fluid between the reservoir and said bung, wherein the volume of said reservoir is preselected so that compression of the reservoir displaces only sufficient fluid into said interior void of said bung so as to seal said body channel without application of undue pressure thereto, and when fully compressed, said reservoir is retained in a collapsed state in said closure device.
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Accused Products
Abstract
A closure device for use in the closure of stomas and the like is described and comprises a bellows like reservoir which is integral with and in fluid communication with a bell-shaped inflatable bung. The inflatable bung can be positioned with a body channel of the stoma and inflated to a predetermined degree defined by the volume of the reservoir. A filter channel is provided in an annular ring of the device and is positioned so as to permit escape of flatus without becoming blocked by liquid or solid materials from the body channel.
197 Citations
16 Claims
- 1. A closure device for a body channel, the device comprising an inflatable bung for insertion into said body channel, which bung is provided with an interior void for permitting inflation thereof, a reservoir formed integrally with said device, and means for enabling the passage of fluid between the reservoir and said bung, wherein the volume of said reservoir is preselected so that compression of the reservoir displaces only sufficient fluid into said interior void of said bung so as to seal said body channel without application of undue pressure thereto, and when fully compressed, said reservoir is retained in a collapsed state in said closure device.
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9. A bung for use in a closure device for a body channel having side walls, which bung comprises:
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a neck portion having a diameter which is generally less than that of said body channel so that said neck portion is generally free from contact with said body channel; a first flared portion which extends from one end of said neck portion and has a resilient character and flares outwardly from said neck portion towards said walls of said body channel; and a contact portion means contiguous with an end of said first flared portion remote from said neck portion defining an open end of said bung, which contact portion is disposed inwardly of said body channel when inserted therein, said contact portion being provided with a tapered distal end means which has substantially no flexibility of its own but of sufficient resilience to cling against said walls of said body channel under influence of a pressure present within said body channel being greater than that outside of said body channel, said contact portion thereby acting as a non-return valve and effecting a seal to prevent outflow of fluid, solid material and/or flatus from said body channel. - View Dependent Claims (10, 11, 12, 13, 14)
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- 15. A filter device for a closure device for a body channel, which filter device comprises an annular ring to be positioned around an opening of said body channel onto a surface of a body, said annular ring comprising support means for supporting and/or containing a film material into which fluid and/or solid material ejected from said body channel can be collected, said annular ring comprising a filter channel having a first end which opens into a cavity defined within said film material and is positioned upwards of said opening when in use, an a second end which opens to the outside of said cavity, a portion of said filter channel in the vicinity of said first end being oriented so as to be substantially parallel to said body channel, and wherein said first end is positioned so that, in use, said film hangs over said first end and over said opening of said body channel such as to obstruct said first end, the device being arranged so that impact of fluid and/or solid material expelled from said body channel on to said film in a direction away from said body channel moves said film so as to open said first end and allow flatus moving in a direction substantially opposite to that of said material expelled from said body channel to enter said portion and pass through said filter channel.
Specification