Ostomy closure

• US 8,864,729 B2
• Filed: 11/01/2012
• Issued: 10/21/2014
• Est. Priority Date: 07/14/2009
• Status: Active Grant

• Current Assignee: B Braun Medical SAS (B. Braun Holding GmbH & Co. KG)
• Original Assignee: Stimatix GI Ltd (B. Braun Holding GmbH & Co. KG)
• Inventors: Hanuka, David, Or, Meir
• Primary Examiner(s): Su, Susan
• Assistant Examiner(s): Townsend, Guy K
• Application Number:
  US13/666,461
• Publication Number:
  US 20130079738A1
• Time in Patent Office: 719 Days
• Field of Search: 604/334
• US Class Current: 604/334
• CPC Class Codes: A61F 2005/4402 disposable
• CPC Class Codes: A61F 2005/4455 Implantable
• CPC Class Codes: A61F 5/44 Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aidsabsorbent pads, e.g. sanitary towels, A61F13/15; drainage appliances for wounds A61M27/00; emptying devices for urine bags B65B69/0016; Colostomy devices adhesives for colostomy devices A61L24/00; materials for colostomy devices A61L28/00
• CPC Class Codes: A61F 5/4404 Details or parts
• CPC Class Codes: A61F 5/4405 Valves or valve arrangements specially adapted therefor A61F5/441 takes precedence; Fluid inlets or outlets A61F5/4407 takes precedence
• CPC Class Codes: A61F 5/4407 Closure means other than valves
• CPC Class Codes: A61F 5/441 having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
• CPC Class Codes: A61F 5/442 having irrigation ports or means irrigators A61M3/02
• CPC Class Codes: A61F 5/443 having adhesive seals for securing to the body, e.g. of hydrocolloid type, e.g. gels, starches, karaya gums adhesives or sealing pads therefor A61L24/00
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: A61F 5/449 Body securing means, e.g. belts, garments

Abstract

Ostomy ports with self closing for prevention of undesired waste leakage which changing bags or covering and uncovering of a port. A valve may be automatically activated by uncovering of the port. Optionally or alternatively, a valve may be automatically opened by covering of the port.

Claims

1. An ostomy port comprising:

a waste channel configured to and positioned so that it extends through the abdominal wall and a valve for selectively blocking and unblocking said waste channel;

wherein

said valve is positioned within said channel between and spaced from distal and proximal ends thereof, said distal end being deeper within the body than said proximal end;

said valve comprises a portion which, in an uncovered blocking configuration, blocks the channel and resists the pressure of waste pushing proximally;

said unblocks said channel upon distal deflection of said valve portion by pressing from a cover portion insertable to said channel from a proximal direction; and

said valve, in said blocking configuration, opens by deflection of said valve portion proximally when a pressure exerted in a proximal direction by waste content in said waste channel is higher than a predetermined safety threshold.

2. The ostomy port according to claim 1, wherein said valve comprises a shutter valve which is opened by axial force along said channel in a direction towards the body.

3. The ostomy port according to claim 2, wherein said valve comprises an expandable element.

4. The ostomy port according to claim 2, wherein said port includes one or both of a reservoir of fluid and a pump for causing inflation of a chamber associated with said expandable element.

5. The port according to claim 2, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

6. The ostomy port according to claim 2, wherein said valve comprises a plurality of flaps.

7. The ostomy port according to claim 6, wherein said valve comprises an expandable element.

8. The ostomy port according to claim 6, wherein said port includes one or both of a reservoir of fluid and a pump for causing inflation of a chamber associated with said expandable element.

9. The port according to claim 6, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

10. The ostomy port according to claim 1, wherein said valve comprises an expandable element.

11. The ostomy port according to claim 10, wherein said port includes one or both of a reservoir of fluid and a pump for causing inflation of a chamber associated with said expandable element.

12. The port according to claim 10, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

13. The ostomy port according to claim 10, wherein said port includes one or both of a reservoir of fluid and a pump for causing inflation of a chamber associated with said expandable element.

14. The port according to claim 13, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

15. The ostomy port according to claim 1, wherein said valve is configured to automatically block said channel when at least one of one of a cover and a bag on said channel and comprising said cover portion is removed.

16. The port according to claim 15, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

17. The ostomy port according to claim 15, wherein said at least one of a cover and a bag includes a tube comprised in said cover portion which, when inserted into said channel, opens said valve and, when removed form said channel, allows said valve to self-close.

18. The port according to claim 1, wherein said valve is automatically activated to unblock said channel when said channel is covered by a suitable cover or bag.

19. The ostomy port according to claim 1, comprising a manual actuator for at least one of opening and closing said valve.

20. The port according to claim 1, wherein said predetermined safety threshold is between 70 and 200 mmHg.

21. A method for regulating waste content flow through a waste channel configured to and positioned so that it extends through the abdominal wall in an ostomy port comprising:

closing a valve to block said channel in a valve configuration resisting the pressure of waste pushing proximally upon said valve;

uncovering a proximal opening of said channel;

allowing said pressure of waste pushing proximally upon said valve to increase; and

opening automatically said closed valve by deflection of a portion of said valve proximally upon pressure exerted in a proximal direction by said waste content in said waste channel being higher than a predetermined safety threshold;

wherein said closing a valve comprises automatically closing said valve by said uncovering;

wherein said port has a cover including an elongate element which maintains said valve in an open configuration when inserted in said channel, and wherein said uncovering retracts said elongate element and allows said valve to close; and

wherein said valve is positioned within said channel between and spaced from distal to proximal ends of the channel, said distal end deeper within the body than said proximal end.

22. The method according to claim 21, comprising attaching a bag or a cover to said port, said attaching automatically opening said valve.

23. The method according to claim 21, comprising manually closing said valve.

24. The method according to claim 21, comprising irrigating said waste channel.

25. An ostomy port having a waste channel configured to and positioned so that it extends through the abdominal wall comprising:

said valve is positioned within said channel between and spaced from distal and proximal ends thereof, said distal end being deeper within the body than said proximal end;

an inflatable section inside said waste channel, between and spaced from distal and proximal ends thereof, said distal end being deeper within the body than said proximal end, and said section being inflatable to a degree sufficient to block said channel and deflatable to a degree whereby it does not block or interfere with flow in said channel; and

an integral inflator configured for pumping to selectively inflate said inflatable section to block said channel

wherein said port includes a reservoir for holding inflation fluid for said inflatable section.

26. The port according to claim 25, comprising a stomal cover and wherein said inflator is provided in or on said stomal cover.

27. The port according to claim 25 including a check valve for regulating pressure in said inflatable section.

28. The port according to claim 27, wherein said check valve is suitable for deflation of said inflatable section.

29. The port according to claim 25, wherein said inflator comprises an air pump.

30. The port according to claim 25, comprising a deflation valve.

31. The port according to claim 25, wherein said inflator is electrically operated and activated by one or both of covering and uncovering of said port, using a covering or uncovering sensing circuit.

32. The port according to claim 25, including an indicator indicating one or both of when said channel is blocked and when said channel is open.

33. The port according to claim 32, wherein said indicator is a visual or acoustic display electrically activated by a sensing element which senses a state of said valve.

34. The port according to claim 25, wherein said inflator is electrically operated and includes a battery for powering said electrically operated inflator.