US4981465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable closure means for an artificial ostomy opening or an incontinent natural anus
Assignee: Coloplast AS
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Filing: 1990-03-22
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Granted: 1991-01-01
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Expires: 2010-03-22
Abstract
Abstract A disposable closure for an artificial or an incontinent natural intestinal opening has a porous, elastic, air-filled body which in a state not influenced by external compressive forces is a substantially cylindrical, conical or bell-shaped structure having a cross-sectional area, measured halfway between its ends, of at least the double of the cross-sectional area of the intestinal duct for which it is intended. When supplied by the manufacturer, this elastic body is compressed to a substantially cylindrical shape having a cross-sectional area as or slightly below that of the intestinal duct in question. The elastic body is maintained in that compressed state by a moisture- and/or heat sensitive material, the shape-maintaining effect of which is rapidly eliminated upon contact with the moisture content of the intestine and/or the heat of the human body. The elastic body may for instance be made of a foam plastic and the shape-maintaining material may for instance be a cover of polyvinyl alcohol.
Inventors
- 👤 Akeel Ballan
- 👤 Flemming Burcharth
- 👤 Nils E. Krogh
- 👤 Frederik Kylberg
- 👤 Tove Linnemann
- 👤 Hans Olsaen
- 👤 Sten N. Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:15
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/445; A61F2/00; A61F2/0004; A61F2/0009; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
338 words
A disposable sealing and gas filtering device for incontinent openings of intestinal ducts including ostomy openings surrounded by an annular skin barrier, comprising in combination: an elastic body of open-cell polymer foam having first and second ends and capable of rapid radial expansion to seal an incontinent opening, where said first end of said body in the expanded state has a smaller cross-sectional area than the second end and said first end is adapted to be situated adjacent the outer end of the incontinent opening; a film cover disintergratable by the influence of temperature and moisture prevailing in an intestinal duct, said film cover compressing said elastic body radially over its entire length to a substantially cylindrical shape having a cross-sectional area about half of the cross-sectional area it possesses in its uncompressed state, said elastic body being dimensioned to fit into the intestinal duct to be sealed; a first coupling ring bondable to the annular skin barrier, said first coupling ring having a central opening and a first element of a cooperating connecting member; a second coupling ring having a central opening corresponding to the central opening of said first coupling ring, said second coupling ring including a second element of the cooperating connecting member, where combining said first and second elements establishes said coo operating connecting member and establishes a removably attachable gas-tight connection between said first coupling ring and said second coupling ring; a first sheet affixed to said second coupling ring within the central opening, said first sheet being affixed to said elastic body, and having one perforation for the passage of intestinal gases; a second sheet covering said first sheet in a gas-tight manner and connected at its periphery to said second coupling ring so as to form a space between said first and second sheets, said second sheet being provided with at least one opening for the escape of gases, and a filter means being located in said space an being secured to at least one of said first and second sheets.
Claim 2
Dependent Claim
338 words
A disposable sealing and gas filtering device for incontinent openings of intestinal ducts including ostomy openings surrounded by an annular skin barrier, comprising in combination: an elastic body of open-cell polymer foam having first and second ends and capable of rapid radial expansion to seal an incontinent opening, where said first end of said body in the expanded state has a smaller cross-sectional area than the second end and said first end is adapted to be situated adjacent the outer end of the incontinent opening; a film cover disintergratable by the influence of temperature and moisture prevailing in an intestinal duct, said film cover compressing said elastic body radially over its entire length to a substantially cylindrical shape having a cross-sectional area about half of the cross-sectional area it possesses in its uncompressed state, said elastic body being dimensioned to fit into the intestinal duct to be sealed; a first coupling ring bondable to the annular skin barrier, said first coupling ring having a central opening and a first element of a cooperating connecting member; a second coupling ring having a central opening corresponding to the central opening of said first coupling ring, said second coupling ring including a second element of the cooperating connecting member, where combining said first and second elements establishes said coo operating connecting member and establishes a removably attachable gas-tight connection between said first coupling ring and said second coupling ring; a first sheet affixed to said second coupling ring within the central opening, said first sheet being affixed to said elastic body, and having one perforation for the passage of intestinal gases; a second sheet covering said first sheet in a gas-tight manner and connected at its periphery to said second coupling ring so as to form a space between said first and second sheets, said second sheet being provided with at least one opening for the escape of gases, and a filter means being located in said space an being secured to at least one of said first and second sheets.
Claim 3
Dependent Claim
18 words
A disposable sealing and gas filtering device, according to claim 1 where said open-cell polymer foam comprises polyurethane.
Claim 4
Dependent Claim
265 words
A disposable sealing and gas-filtering device for incontinent natural intestinal openings and ostomy openings surrounded by an annular skin barrier, comprising in combination: an elastic body of open-cell polymer foam, having first and second ends capable of rapid radial expansion to seal natural intestinal openings and ostomy openings, where said first end of said body in the expanded state has a smaller cross-sectional area than the second end and said first end is adapted to be situated adjacent the outer end of the intestinal opening; a film cover disintegratable by the influence of temperature and moisture prevailing in an intestinal duct, said film cover compressing said elastic body radially over its entire length to a substantially cylindrical shape having a cross-sectional area of about half of the cross-sectional area it possesses in its uncompressed state, said elastic body being dimensioned to fit into the intestinal duct to be sealed; a first sheet connected to said first end of said body and connected at its periphery to the annular skin barrier, said first sheet having at least one perforation for the passage of intestinal gases; a second sheet covering said first sheet in a gas-tight manner and connected to the annular skin barrier so as to form a space between said first and second sheets, and said second sheet being provided with at least one opening for escape of gases, and a filter located in said space and secured to at least one of said first and second sheets in a manner to allow passage of gases through said perforation, said filter and then said opening.
Claim 5
Dependent Claim
265 words
A disposable sealing and gas-filtering device for incontinent natural intestinal openings and ostomy openings surrounded by an annular skin barrier, comprising in combination: an elastic body of open-cell polymer foam, having first and second ends capable of rapid radial expansion to seal natural intestinal openings and ostomy openings, where said first end of said body in the expanded state has a smaller cross-sectional area than the second end and said first end is adapted to be situated adjacent the outer end of the intestinal opening; a film cover disintegratable by the influence of temperature and moisture prevailing in an intestinal duct, said film cover compressing said elastic body radially over its entire length to a substantially cylindrical shape having a cross-sectional area of about half of the cross-sectional area it possesses in its uncompressed state, said elastic body being dimensioned to fit into the intestinal duct to be sealed; a first sheet connected to said first end of said body and connected at its periphery to the annular skin barrier, said first sheet having at least one perforation for the passage of intestinal gases; a second sheet covering said first sheet in a gas-tight manner and connected to the annular skin barrier so as to form a space between said first and second sheets, and said second sheet being provided with at least one opening for escape of gases, and a filter located in said space and secured to at least one of said first and second sheets in a manner to allow passage of gases through said perforation, said filter and then said opening.
Claim 6
Dependent Claim
19 words
A disposable gas sealing and filtering device according to claim 3 where said open cell polymer foam comprises polyurethane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |