CONTROLLED EVACUATION OSTOMY APPLIANCE

• US 20070123832A1
• Filed: 11/27/2006
• Published: 05/31/2007
• Est. Priority Date: 11/30/2005
• Status: Active Grant

• Current Assignee: Convatec Technologies, Inc. (ConvaTec Group Plc)
• Original Assignee: Bristol-Myers Squibb Company
• Inventors: Cline, John, Gregory, Christopher, Scarfe, Julian, Cucknell, Alan, Cauwood, Pete, Davies, Geraint
• Granted Patent: US 8,217,221 B2
• Time in Patent Office: Days
• US Class Current: 604/335
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence

Abstract

A controlled evacuation ostomy appliance including a collection pouch, and an urging device for applying a sealing force through the pouch wall to seal the stoma. The pouch wall may seal directly against the stoma, or the pouch may have an internal sealing member that is pressed by the pouch wall against the stoma. The urging device provides an adjustable sealing force. The pouch may be disposable. The urging device may be reusable with a replacement pouch.

Claims

1. A controlled evacuation ostomy appliance comprising:

a. a waste collection pouch having a stomal aperture for fitting around a wearer'"'"'s stoma, the pouch having a pouch wall opposite said entrance aperture; and

b. an urging device for applying a sealing force to the stoma by means of said pouch wall, to effect a stoma seal.

2. The ostomy appliance according to claim 1, wherein said urging device is configured to apply said sealing force through said pouch wall, from one face of said pouch wall to the opposite face.

3. The ostomy appliance according to claim 1, wherein the urging device is located at least partly outside said pouch, and is configured to press against said pouch wall in a region generally opposite said entrance aperture.

4. The ostomy appliance according to claim 1, wherein said pouch wall is configured to directly contact the stoma to form said stoma seal.

5. The ostomy appliance according to claim 1, further comprising a sealing member located inside said pouch and positioned such that said urging device presses, through said pouch wall, said sealing member into sealing contact with said stoma.

6. The ostomy appliance according to claim 5, wherein the sealing member is carried by said pouch wall.

7. The ostomy appliance according to claim 5, wherein said sealing member is at least partly conformable to the shape of the stoma.

8. The ostomy appliance according to claim 7, wherein said sealing member is resiliently conformable.

9. The ostomy appliance according to claim 5, wherein said sealing member comprises at least one of the following:

a foam member;

an inflatable or inflated chamber;

a multiplicity of loosely captive particles.

10. The ostomy appliance according to claim 1, wherein said urging device comprises a pressing portion for pressing against said pouch wall to exert said sealing force thereagainst.

11. The ostomy appliance according to claim 10, wherein said pressing portion is at least partly conformable.

12. The ostomy appliance according to claim 11, wherein said pressing portion is resiliently conformable.

13. The ostomy appliance according to claim 10, wherein said pressing portion comprises at least one of the following:

a foam member;

an inflatable or inflated chamber;

a multiplicity of loosely captive particles.

14. The ostomy appliance according to claim 1, wherein said urging device comprises an anchoring portion for anchoring said urging device, and for supporting the reaction to the sealing force applied by said urging device.

15. The ostomy appliance according to claim 1, wherein said urging device is configured to enable the user to relieve the sealing force by manipulation of the urging device, to relieve the stoma seal.

16. The ostomy appliance according to claim 15, wherein said urging device is configured to enable the user to relieve the sealing force temporarily to permit a stomal discharge, and to reapply the sealing force thereafter.

17. The ostomy appliance according to claim 1, wherein said urging device comprises an adjustment device for enabling adjustment of the sealing force.

18. The ostomy appliance according to claim 1, wherein the urging device comprises a force limiting device for preventing the sealing force from exceeding a predetermined threshold.

19. The ostomy appliance according to claim 1, wherein said stoma seal is effective to block the discharge of at least solid body waste.

20. The ostomy appliance according to claim 19, wherein said stoma seal is effective to block the discharge of liquid body waste.

21. The ostomy appliance according to claim 19, wherein said stoma seal is effective to allow the discharge of liquid body waste into the pouch, while blocking the discharge of solid body waste.

22. The ostomy appliance according to claim 19, wherein the stoma seal is effective to allow the discharge of flatus gas from the stoma, while blocking the discharge of at least solid body waste.

23. The ostomy appliance according to claim 1, wherein the urging device is separable from the pouch, and is reusable with a replacement pouch.

24. An urging device for use with a pouch to provide the pouch with controlled evacuation capabilities comprising:

a. a pressing portion for pressing against a portion of a pouch wall that is generally opposite to the stoma aperture of the pouch, towards the stoma to apply a sealing force to the stoma; and

b. an anchoring portion for anchoring the urging device and for supporting the reaction of the sealing force applied by the urging device.

25. The urging device according to claim 24, wherein the anchoring device comprises an adhesive member for adhesive attachment to the wearer'"'"'s skin.

26. The urging device according to claim 24, wherein the anchoring device comprises a coupling member for releasable mechanical engagement with a complementary coupling member.

27. A controlled evacuation ostomy appliance comprising:

an ostomy pouch having walls with an inner face facing the inside of the pouch;

wherein an inner face of a wall of the pouch is used as a seal surface, or a seal-bearing surface, for pressing directly or indirectly against a stoma to obstruct the discharge of at least a predetermined type of body waste from the stoma.

28. A controlled ostomy appliance comprising:

a. a waste collection pouch having a stomal aperture and a pouch wall opposite said stomal aperture; and

b. an urging device for urging a portion of the pouch wall towards the stomal aperture, in use, to directly or indirectly form a seal against the stoma at the aperture.