Ostomy appliances for effluent control

• US 10,045,877 B2
• Filed: 06/19/2009
• Issued: 08/14/2018
• Est. Priority Date: 06/19/2008
• Status: Active Grant

• Current Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Original Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Inventors: Weig, Bret
• Primary Examiner(s): Su, Susan
• Application Number:
  US12/999,646
• Publication Number:
  US 20110092929A1
• Time in Patent Office: 3,343 Days
• Field of Search: 604332-345, 600580-582
• 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 constructed of a toroidal-shaped elastic material or O-ring for remaining external of the stoma, for providing a discharge exit for stomal effluent; and

an elastic 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, wherein the diameter of the first end of the stoma extender is smaller than the diameter of the second end of the stoma extender, and the conduit portion has a tapered shape from the second end to the first end permitting at least partial rolling-up of the second end of the conduit portion along its axis to reduce the length and at least partial unrolling of the second end of the conduit portion along its axis to increase the length utilizing the circumferential detent of the toroidal shaped elastic material or O-ring of the second end; and

wherein the diameter of the first end remains smaller than the diameter of the second end during the at least partial rolling-up of the second end and diversion of the stomal effluent.

2. The stoma extender of claim 1, wherein the conduit portion is rollable from the second end to permit adaptation of the length once the first end is already inserted into the stoma.

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

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

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

6. The stoma extender of claim 5, wherein the seal is selected from:

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

7. 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.

8. The stoma extender of claim 7, wherein the second end comprises a source of inflation fluid for the first end.

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

10. 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.

11. 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, configured for communicating stomal effluent through the stoma extender, wherein the conduit portion has a tapered shape from the second end to the first end so as to function as an adjustment to various fascia to skin distances, and wherein the conduit portion is elastic;

an inflatable seal at the first end for sealing against the intestinal wall behind the stoma when the inflatable seal is inflated, while allowing for the diversion of stomal effluent into the stoma extender;

an inflation fluid reservoir integrated with provided at the second end, or nearer the second end than the first end, 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 inflation fluid reservoir to the inflatable seal;

wherein the inflatable seal is toroidal in shape and sealed to or continuous with the tapered conduit portion at the first end; and

wherein the inflation conduit is adapted to extend substantially within the stoma.

12. The stoma extender of claim 11, wherein the inflation fluid reservoir comprises an elastic container for storing the inflation fluid under pressure greater than atmospheric pressure.

13. The stoma extender of claim 11, wherein the inflation fluid reservoir is provided at the second end, or nearer the second end that the first end.

14. The stoma extender of claim 13, wherein the inflation fluid reservoir has a toroidal shape.

15. The stoma extender of claim 13, 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.

16. The stoma extender of claim 11, wherein the first end has a collapsed configuration.

17. The stoma extender of claim 16, wherein the collapsed configuration is retained by a water soluble or water-dispersible glue or coating at the first end.

18. The stoma extender of claim 17, wherein the glue or coating comprises gelatin.

19. The stoma extender of claim 11 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.

20. The stoma extender of claim 19, wherein the removable packaging is made of barrier material for blocking transpiration of inflation fluid through the removable packaging.

21. 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, configured for communicating stomal effluent through the stoma extender, wherein the conduit portion has a tapered shape from the second end to the first end so as to function as an adjustment to various fascia to skin distances, and wherein the conduit portion is elastic;

an inflatable seal at the first end for sealing against the intestinal wall behind the stoma when the inflatable seal is inflated, while allowing for the diversion of stomal effluent into the stoma extender;

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, wherein the inflation fluid reservoir is provided at the second end, or nearer the second end than the first end, and 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; and

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

wherein the inflatable seal is toroidal in shape and sealed to or continuous with the tapered conduit portion at the first end; and

wherein the inflation conduit is adapted to extend substantially within the stoma.