Means for disposal of articles by flushing and ostomy pouches particularly suited for such disposal

• US 4,762,738 A
• Filed: 12/22/1986
• Issued: 08/09/1988
• Est. Priority Date: 12/22/1986
• Status: Expired due to Term

• Current Assignee: ER Squibb & Sons LLC (Bristol-Myers Squibb Company)
• Original Assignee: E R Squibb & Sons Incorporated
• Inventors: Keyes, Denis E., Aronoff, Marvin S.
• Primary Examiner(s): Swisher, Nancy A. B.
• Application Number:
  US06/944,891
• Time in Patent Office: 596 Days
• Field of Search: 604/332, 252/90, 428/36
• US Class Current: 428/34.3
• CPC Class Codes: A61F 13/15211 soluble or disintegratable in liquid
• CPC Class Codes: A61F 13/47 Sanitary towels, incontinence pads or napkins A61F13/49 takes precedence
• CPC Class Codes: A61F 13/551 Packaging before or after use general packaging of absorbent pads B65D85/00
• CPC Class Codes: A61F 2005/4402 disposable
• CPC Class Codes: A61F 2013/15048 for protection against contamination, or protection in using body disinfecting wipes
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: Y10T 428/1307 Bag or tubular film [e.g., pouch, flexible food casing, envelope, etc.]

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.

Claims

1. 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.

2. 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.

3. The pouch of claim 1 wherein said hot water soluble polyvinyl alcohol films are from about 0.8 to about 1.25 mils thickness.

4. 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.

5. The pouch of claim 4 wherein the exposed surface of said adhesive layer is covered by a sheet of release paper prior to use.

6. 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.

7. 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.

8. 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.

9. The pouch of claim 8 wherein the exposed surface of said adhesive layer is covered by a sheet of release paper prior to use.

10. The pouch of claim 9 wherein said attaching means is secured over its entire surface area to said front panel.

11. 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.

12. The pouch of claim 1 wherein said front and rear panels are joined together around their entire periphery to form a closed ended pouch.

13. 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.

14. The pouch of claim 13 wherein said filter means contains activated carbon.

15. 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.

16. 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.

17. The pouch of claim 1 wherein one or both of said water resistant tissue paper layers are impregnated with a surfactant.

18. 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.

19. 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.

20. 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.

21. 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.

22. 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.

23. 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.

24. 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.

25. The method of claim 23 wherein said ostomy pouch is placed within a bag or sleeve formed from highly absorbent tissue paper.

26. The method of claim 23 wherein said ostomy pouch is placed with a bag or sleeve formed from cold water soluble polyvinyl alcohol.

27. 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.

28. The method of claim 27 wherein said bag has one or more apertures to aid in the release of entrapped air.

29. 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.

30. 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.

31. The method of claim 30 wherein said ostomy pouch is placed within a bag or sleeve formed from highly absorbent tissue paper.

32. The method of claim 30 wherein said ostomy pouch is placed within a bag or sleeve formed from cold water soluble polyvinyl alcohol.

33. 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.

34. The method of claim 33 wherein said bag has one or more apertures to aid in the release of entrapped air.

35. 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.