Patent US4762738A successfully refreshed from Google Patents.
US4762738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for disposal of articles by flushing and ostomy pouches particularly suited for such disposal
Assignee: ER Squibb and Sons LLC
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Filing: 1986-12-22
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Granted: 1988-08-09
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Expires: 2006-12-22
Abstract
Abstract Flexible, soft objects such as ostomy pouches, wound dressings, bandages, diapers, etc. can be flushed down a conventional toilet by covering the article with a sheet of material which rapidly becomes slimy or exudes a slimy material on contact with the water in a toilet bowl or by adding such materials directly to the bowl. An ostomy pouch constructed from materials particularly suited for disposal in a toilet bowl is also disclosed. The pouch is constructed from laminates of water swellable, cold water insoluble films and water resistant tissue paper.
Inventors
- 👤 Denis E. Keyes
- 👤 Marvin S. Aronoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:14
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/15203; A61F13/15211; A61F13/551; A61F5/00; A61F5/44; A61F5/445; A61F2005/4402; A61F2013/15008; A61F2013/15048; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1307
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
189 words
An ostomy pouch which can be disposed of by flushing in a conventional toilet bowl comprising a front panel formed of a laminate of a film of water swellable, cold water insoluble, hot water soluble polyvinyl alcohol and water resistant tissue paper and a rear panel formed of a laminate of a film of water swellable, cold water insoluble, hot water soluble polyvinyl alcohol and either water resistant tissue paper or a film of cold water soluble polyvinyl alcohol both of which are relatively friction free when contacted with the clothing of the user, said front and rear panels joined together over a majority of their periphery to form said ostomy pouch, said front and rear panels oriented so that said films of hot water soluble polyvinyl alcohol constitute the pouch interior, said front panel having an opening therethrough that can fit or can be enlarged to fit around the stoma, and attachment means secured to said front panel around said stomal opening for attachment of said pouch to the body of the user wherein said pouch is capable of maintaining its structural integrity during the period of use.
Claim 2
Dependent Claim
189 words
An ostomy pouch which can be disposed of by flushing in a conventional toilet bowl comprising a front panel formed of a laminate of a film of water swellable, cold water insoluble, hot water soluble polyvinyl alcohol and water resistant tissue paper and a rear panel formed of a laminate of a film of water swellable, cold water insoluble, hot water soluble polyvinyl alcohol and either water resistant tissue paper or a film of cold water soluble polyvinyl alcohol both of which are relatively friction free when contacted with the clothing of the user, said front and rear panels joined together over a majority of their periphery to form said ostomy pouch, said front and rear panels oriented so that said films of hot water soluble polyvinyl alcohol constitute the pouch interior, said front panel having an opening therethrough that can fit or can be enlarged to fit around the stoma, and attachment means secured to said front panel around said stomal opening for attachment of said pouch to the body of the user wherein said pouch is capable of maintaining its structural integrity during the period of use.
Claim 3
Dependent Claim
48 words
The pouch of claim 1 wherein said front and rear panel laminates both are formed of a film of hot water soluble polyvinyl alcohol of from about 0.5 to about 2.0 mils. thickness and a single ply of water resistant tissue paper laminated together by a polyurethane adhesive.
Claim 4
Dependent Claim
22 words
The pouch of claim 1 wherein said hot water soluble polyvinyl alcohol films are from about 0.8 to about 1.25 mils thickness.
Claim 5
Dependent Claim
56 words
The pouch of claim 1 wherein said attachment means comprises a layer of pressure sensitive adhesive secured directly to the water resistant tissue paper layer of said front panel, and wherein said adhesive layer includes an opening substantially similar to said front panel stomal opening that fits or can be enlarged to fit around the stoma.
Claim 6
Dependent Claim
24 words
The pouch of claim 4 wherein the exposed surface of said adhesive layer is covered by a sheet of release paper prior to use.
Claim 7
Dependent Claim
44 words
The pouch of claim 4 wherein said layer of pressure sensitive adhesive has an outer periphery of a generally circular shape and is sealed by heat and pressure across its entire surface area to the water resistant tissue paper layer of said front panel.
Claim 8
Dependent Claim
38 words
The pouch of claim 4 wherein said layer of pressure sensitive adhesive includes one or more portions which extend beyond the area sealed by heat and pressure to the water resistant tissue paper layer of said front panel.
Claim 9
Dependent Claim
67 words
The pouch of claim 4 wherein said attachment means comprises a layer of pressure sensitive adhesive and a backing film, said backing film secured directly to the water resistant tissue paper layer of said front panel, and wherein said adhesive layer and said backing film include an opening substantially similar to said front panel stomal opening that fits or can be enlarged to fit around the stoma.
Claim 10
Dependent Claim
24 words
The pouch of claim 8 wherein the exposed surface of said adhesive layer is covered by a sheet of release paper prior to use.
Claim 11
Dependent Claim
20 words
The pouch of claim 9 wherein said attaching means is secured over its entire surface area to said front panel.
Claim 12
Dependent Claim
30 words
The pouch of claim 9 wherein one or more peripheral portions of said attaching means extend beyond the area in which said attachment means is secured to said front panel.
Claim 13
Dependent Claim
24 words
The pouch of claim 1 wherein said front and rear panels are joined together around their entire periphery to form a closed ended pouch.
Claim 14
Dependent Claim
30 words
The pouch of claim 12 wherein a filter means is provided in the pouch above the stomal opening in the front panel when the pouch is attached to a user.
Claim 15
Dependent Claim
12 words
The pouch of claim 13 wherein said filter means contains activated carbon.
Claim 16
Dependent Claim
73 words
The pouch of claim 14 wherein said front and rear panels are joined in the area around said filter means so as to isolate said filter from the remaining portion of said pouch except for a gap adjacent the peripheral seal at the top edge of the pouch which permits gas to flow from the pouch to the filter means and prevents contact of the stoma with carbon material flaking from said filter.
Claim 17
Dependent Claim
36 words
The pouch of claim 15 wherein said filter means is adhesively secured to one of said panels and one or more perforations are present in the portion of one of said panels overlaying said filter means.
Claim 18
Dependent Claim
21 words
The pouch of claim 1 wherein one or both of said water resistant tissue paper layers are impregnated with a surfactant.
Claim 19
Dependent Claim
46 words
The pouch of claim 1, wherein a notch is provided in a portion of the peripheral bond between said front and rear panels at the top edge of said pouch, said notch enabling the pouch after use to torn open across the top prior to disposal.
Claim 20
Dependent Claim
43 words
The pouch of claim 1 wherein a tear strip is provided in either the front or rear panel near the top edge of said pouch, said tear strip enabling the pouch after use to be torn open across the top prior to disposal.
Claim 21
Dependent Claim
56 words
The method of disposing of a used ostomy pouch constructed in accordance with claim 19 comprising removing said pouch from the body, placing said pouch in a toilet bowl, contacting the exposed pouch surface in the toilet bowl with a surfactant containing composition, and flushing whereby the pouch and its contents will pass from the bowl.
Claim 22
Dependent Claim
32 words
The method of claim 20 wherein the pouch is perforated, cut, or torn after removal from the body in the area above the stomal opening prior to placement in the toilet bowl.
Claim 23
Dependent Claim
52 words
The method of improving the flushability of an ostomy pouch constructed in accordance with claim 19 in marginally performing or clog prone toilets by adding a surfactant and/or softening composition to the water in the toilet bowl or to the cistern feeding the toilet bowl prior to disposal of the ostomy pouch.
Claim 24
Dependent Claim
78 words
The method of disposing of a used ostomy pouch constructed in accordance with claim 19 comprising removing said pouch from the body, wrapping or completely enclosing said pouch within a material that becomes slimy or exudes a slimy material when in contact with the water in a toilet bowl, placing said wrapped or enclosed pouch into a toilet bowl, and flushing whereby said pouch and its contents pass from said bowl through the trap into the waste line.
Claim 25
Dependent Claim
27 words
The method of claim 23 wherein the pouch is perforated, cut or torn after removal from the body and prior to wrapping or enclosing within said material.
Claim 26
Dependent Claim
22 words
The method of claim 23 wherein said ostomy pouch is placed within a bag or sleeve formed from highly absorbent tissue paper.
Claim 27
Dependent Claim
23 words
The method of claim 23 wherein said ostomy pouch is placed with a bag or sleeve formed from cold water soluble polyvinyl alcohol.
Claim 28
Dependent Claim
29 words
The method of claim 26 wherein said ostomy pouch is placed with a bag formed from an embossed cold water soluble polyvinyl alcohol film of about 0.6 mils. thickness.
Claim 29
Dependent Claim
21 words
The method of claim 27 wherein said bag has one or more apertures to aid in the release of entrapped air.
Claim 30
Dependent Claim
27 words
The method of claim 23 wherein said ostomy pouch is placed within a bag or sleeve formed from tissue paper impregnated with a surfactant and/or softening agent.
Claim 31
Independent Claim
72 words
The method of disposing of a used ostomy pouch comprising removing said pouch from the body, wrapping or completely enclosing said pouch within a material that becomes slimy or exudes a slimy material when in contact with the water in a toilet bowl, placing said wrapped or enclosed pouch into a toilet bowl, and flushing whereby said pouch and its contents pass from said bowl through the trap into the waste line.
Claim 32
Independent Claim
72 words
The method of disposing of a used ostomy pouch comprising removing said pouch from the body, wrapping or completely enclosing said pouch within a material that becomes slimy or exudes a slimy material when in contact with the water in a toilet bowl, placing said wrapped or enclosed pouch into a toilet bowl, and flushing whereby said pouch and its contents pass from said bowl through the trap into the waste line.
Claim 33
Dependent Claim
22 words
The method of claim 30 wherein said ostomy pouch is placed within a bag or sleeve formed from highly absorbent tissue paper.
Claim 34
Dependent Claim
23 words
The method of claim 30 wherein said ostomy pouch is placed within a bag or sleeve formed from cold water soluble polyvinyl alcohol.
Claim 35
Dependent Claim
29 words
The method of claim 32 wherein said ostomy pouch is placed within a bag formed from an embossed cold water soluble polyvinyl alcohol film of about 0.6 mils thickness.
Claim 36
Dependent Claim
21 words
The method of claim 33 wherein said bag has one or more apertures to aid in the release of entrapped air.
Claim 37
Dependent Claim
27 words
The method of claim 30 wherein said ostomy pouch is placed within a bag or sleeve formed from tissue paper impregnated with a surfactant and/or softening agent.
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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) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |