OSTOMY APPLIANCES FOR EFFLUENT CONTROL

• US 20110092929A1
• Filed: 06/19/2009
• Published: 04/21/2011
• Est. Priority Date: 06/19/2008
• Status: Active Grant

• Current Assignee: Convatec Technologies, Inc. (ConvaTec Group Plc)
• Original Assignee: Convatec Technologies, Inc. (ConvaTec Group Plc)
• Inventors: Weig, Bret
• Granted Patent: US 10,045,877 B2
• Time in Patent Office: Days
• US Class Current: 604/338
• CPC Class Codes: A61F 2005/4455 Implantable
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence

Abstract

A stoma extender includes a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma; a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender, wherein the length of the conduit portion is adjustable stably, to permit adaptation of the stoma extender to an individual'"'"'s stoma.

Claims

1. A stoma extender comprising:

a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma;

a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and

a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender, wherein the length of the conduit portion is adjustable stably, to permit adaptation of the stoma extender to an individual'"'"'s stoma.

2. The stoma extender of claim 1, wherein at least a portion of the conduit portion is configured to permit at least one selected from:

at least partial rolling-up of the conduit portion along its axis to reduce the length; and

/or at least partial unrolling of a rolled-up portion of the conduit portion along its axis to increase the length.

3. The stoma extender of claim 2, wherein the conduit portion is rollable from the second end to permit adaptation of the length once the first end is already inserted into a stoma.

4. The stoma extender of claim 1, wherein at least a portion of the conduit portion is configured to permit at least one selected from:

at least partial folding-back of the conduit portion along its axis to reduce the length; and

/or at least partial unfolding of a folded-back portion of the conduit portion along its axis to increase the length.

5. The stoma extender of claim 4, wherein the conduit portion is foldable from the second end to permit adaptation of the length once the first end is already inserted into a stoma.

6. The stoma extender of claim 1, wherein the first end comprises a seal for sealing against the intestinal wall.

7. The stoma extender of claim 6, wherein the seal is selected from:

an inflatable seal, and/or a seal comprising resilient fingers, and/or a seal comprising a material that expands when contacted by moisture from stomal effluent.

8. The stoma extender of claim 1, wherein the second end comprises a member or portion that is stiffer than a portion of the conduit portion extending to the second end.

9. The stoma extender of claim 8, wherein the second end comprises a source of inflation fluid for the first end.

10. The stoma extender of claim 1, wherein at least a portion of the conduit portion is elastic.

11. The stoma extender of claim 1, further comprising an adhesive for retaining the second end, whereby an adjusted length of the conduit portion is stably held.

12. A stoma extender comprising:

a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma;

a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and

a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender, wherein the first end comprises a seal defined by a plurality of resilient fingers extending from a support collar, and elastic webbing extending at least between portions of the fingers, the fingers, support collar and webbing defining a resiliently collapsible funnel-shape.

13. The stoma extender of claim 12, wherein the webbing comprises an elastic sleeve covering the fingers.

14. The stoma extender of claim 12, wherein the webbing is integrally formed with the fingers and collar.

15. The stoma extender of claim 12, wherein each of the fingers comprises a tip remote from the support collar, the tip being curved away from an intestinal-wall-facing surface of the finger such that, in use, the tip does not bear directly on the intestinal wall.

16. A stoma extender comprising:

a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma;

a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and

a conduit portion extending between the first and second ends for communicating stomal effluent through the stoma extender,

wherein at least the first end comprises;

a tubular support member; and

a first sleeve extending around at least a portion of the tubular support member, the first sleeve comprising material that expands in response to contact with moisture, whereby when the first end is inserted into a stoma in use, moisture from stomal effluent causes the first sleeve to expand for forming a seal between the first end and the intestinal wall.

17. The stoma extender of claim 16, wherein the first sleeve comprises a foam that expands when contacted by moisture.

18. The stoma extender of claim 16, wherein the tubular member comprises at least one aperture for communicating moisture from inside the tubular member to the first sleeve.

19. The stoma extender of claim 16, further comprising a second sleeve extending around the first sleeve for (i) containing the first sleeve and (ii) defining a contact surface for contacting the intestinal wall.

20. The stoma extender of claim 16, wherein the tubular member has a bulbous or bulged shape at the first end of the stoma extender.

21. The stoma extender of claim 16, wherein the tubular support member and the first sleeve extend from the first end towards the second end.

22. A stoma extender comprising:

a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma;

a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and

a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender,

wherein the first end and at least a portion of the conduit portion have a collapsed form prior to first use, the collapsed form being retained by a water-soluble and/or water-dispersible glue or coating on said collapsed form, whereby in use, once the first end has been inserted into a stoma, the collapsed form is released by contact with moisture form stomal effluent.

23. The stoma extender of claim 22, wherein said glue or coating is of gelatin.

24. A stoma extender comprising:

a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma;

a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent;

a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender;

an inflatable seal at the first end for sealing against the intestinal wall behind a stoma;

an inflation fluid reservoir for storing inflation fluid prior to delivery to the inflatable seal, the inflation fluid reservoir having a storage capacity sufficient to inflate the inflatable seal to an operative inflated state in use; and

an inflation conduit for delivering inflation fluid from the reservoir to the inflatable seal.

25. The stoma extender of claim 24, wherein the inflation fluid reservoir comprises an elastic container for storing the inflation fluid under pressure greater than atmospheric pressure.

26. The stoma extender of claim 24, wherein the inflation fluid reservoir is provided at the second end, or nearer the second end than the first end.

27. The stoma extender of claim 26, wherein the inflation fluid reservoir has a toroidal shape.

28. The stoma extender of claim 26, wherein the inflation reservoir is responsive to manual pressure applied at the second end, while rolling, folding, or pressing the second end towards stoma level during fitting of the stoma extender, to urge inflation fluid out of the reservoir.

29. The stoma extender of claim 24, further comprising a device for retaining the first end in a non-inflated state until the first end has been received within the stoma.

30. The stoma extender of claim 29, wherein the device comprises a water soluble and/or water-dispersible glue or coating at the first end.

31. The stoma extender of claim 30, wherein the glue or coating comprises gelatin.

32. The stoma extender of claim 24 wherein at least the inflation fluid reservoir is initially contained within removable packaging, the removable packaging containing a second reservoir of the inflation fluid at a pressure not substantially less than the pressure within the inflation fluid reservoir.

33. The stoma extender of claim 32, wherein the removable packaging is made of barrier material for blocking transpiration of inflation fluid through the removable packaging.

34. A stoma extender comprising:

a tubular member of generally self-supporting shape, the tubular member having a first end for insertion into a stoma for diverting stomal effluent into the tubular member before the effluent exits the stoma, and a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent passing through the tubular member;

a collar slidable along at least a portion of the tubular member from the second end; and

a selective engagement device for providing selective engagement between the collar and the tubular member, the selective engagement device being at least one selected from;

(a) a directionally selective engagement device that permits sliding movement of the collar on the tubular member in a direction away from the second end, and which produces engagement between the collar and the tubular portion to resist movement of the collar in an opposite direction towards the second end, and/or

(b) a manually selective engagement device responsive to manual operation between an engaged condition for retaining the collar at a position on the tubular member, and a non-engaged condition that permits sliding movement of the collar on the tubular member.

35. The stoma extender of claim 34, wherein the directionally selective engagement device comprises a plurality of fingers configured for permitting sliding movement in one direction, and for resisting sliding movement in said opposite direction.