Medical device suitable for treating reflux from a stomach to an oesophagus

• US 20070198048A1
• Filed: 12/22/2006
• Published: 08/23/2007
• Est. Priority Date: 12/23/2005
• Status: Active Grant

• Current Assignee: Coloplast A/S
• Original Assignee: Coloplast A/S
• Inventors: Behan, Niall, McLaughlin, Enda, Finnegan, Sean, Lyons, Edwin, Devery, Donal
• Granted Patent: US 9,308,077 B2
• Time in Patent Office: Days
• US Class Current: 606/194
• CPC Class Codes: A61B 2017/00827 Treatment of gastro-esophageal reflux
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/24 Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2476 Valves implantable in the body not otherwise provided for
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body

Abstract

A medical treatment device (200), for treating reflux from a stomach (201) to an oesophagus (202) and for delivering a therapeutic agent to an inner surface of the oesophagus (202), comprises a valve member (203), a lining member (204), and a support member (205). The valve member (203) is movable between a closed configuration and an open configuration, in which the valve member (203) facilitates passage of material between the oesophagus (202) and the stomach (201). The valve member (203) is biased towards the closed configuration and gradually moves over a period of 4 to 10 secs from the open configuration to the closed configuration. The support member (205) supports the device (200) relative to the oesophagus (202) and the stomach (201). The lining member (204) lines part of the inner surface of the oesophagus (202) for delivery of a therapeutic agent to the oesophagus (202).

Claims

1. A medical device suitable for treating reflux from a stomach to an oesophagus, the device comprising:

—

a valve member;

the valve member being movable between an open configuration to facilitate passage of material between an oesophagus and a stomach, and a closed configuration;

the valve member being configured to gradually move from the open configuration to the closed configuration over a predetermined period of time.

2. A device as claimed in claim 1 wherein in the open configuration the valve member is configured to facilitate passage of material from an oesophagus into a stomach.

3. A device as claimed in claim 1 wherein in the open configuration the valve member is configured to facilitate passage of material from a stomach into an oesophagus.

4. A device as claimed in claim 1 wherein the device is biased towards the closed configuration.

5. A device as claimed in claim 1 wherein the period of time is greater than 1 secs.

6. A device as claimed in claim 1 wherein the valve member comprises a viscoelastic material.

7. A device as claimed in claim 1 wherein the valve member comprises a foam.

8. A device as claimed in claim 1 wherein the valve member comprises a polyurethane material.

9. A device as claimed in claim 1 wherein the device comprises at least one support member to support the device relative to an oesophagus and/or a stomach.

10. A device as claimed in claim 1 wherein the device comprises a lining member for lining a part of an inner surface of an oesophagus and or a stomach.

11. A medical device suitable for delivering a therapeutic agent to an alimentary canal, the device comprising:

—

a therapeutic agent delivery member;

the delivery member comprising at least one pore;

the delivery member defining a storage space for storing a therapeutic agent.

12. A device as claimed in claim 11 wherein the delivery member is configured to be located in an alimentary canal in direct contact with an inner surface of the alimentary canal.

13. A device as claimed in claim 11 wherein the delivery member is a single layer member.

14. A device as claimed in claim 11 wherein the delivery member comprises a viscoelastic material.

15. A device as claimed in claim 11 wherein the delivery member comprises a foam.

16. A device as claimed in claim 11 wherein the delivery member comprises a polyurethane material.

17. A device as claimed in claim 11 wherein the delivery member comprises a cellular material.

18. A device as claimed in claim 17 wherein the storage space is located in a strut of a cell.

19. A device as claimed in claim 11 wherein the device comprises at least one support member to support the delivery member relative to an alimentary canal.

20. A method of delivering a medical treatment device to a treatment location in an alimentary canal, the method comprising the steps of:

providing a medical treatment device;

providing a delivery catheter;

locating the medical treatment device at least partially within the delivery catheter;

advancing the delivery catheter through an alimentary canal; and

deploying the medical treatment device out of the delivery catheter at a treatment location in the alimentary canal

21. A method as claimed in claim 20 wherein the method comprises the step of collapsing at least part of the medical treatment device before locating at least partially within the delivery catheter.

22. A method as claimed in claim 20 wherein the medical treatment device is located within the delivery catheter by advancing at least part of the delivery catheter relative to the medical treatment device.

23. A method as claimed in claim 20 wherein the method comprises the steps of:

—

providing a medical guidewire; and

advancing the medical guidewire through the alimentary canal.

24. A method as claimed in claim 20 wherein the medical treatment device is deployed by retracting at least part of the delivery catheter relative to the medical treatment device.

25. A method as claimed in claim 20 wherein the medical treatment device expands after deployment out of the delivery catheter.

26. A method as claimed in claim 20 wherein the method comprises the steps of:

—

providing a deployment aid member; and

locating the deployment aid member between the medical treatment device and the delivery catheter.

27. A method as claimed in claim 20 wherein the method comprises the step of, after deploying the medical treatment device out of the delivery catheter, locating the medical treatment device at least partially within the delivery catheter.

28. A method as claimed in claim 20 wherein the method comprises the step of withdrawing the delivery catheter from the alimentary canal.

29. A method of delivering a medical treatment device to a treatment location in an oesophagus as claimed in claim 20.

30. A delivery system for delivering a medical treatment device to a treatment location in an alimentary canal, the system comprising:

—

a delivery catheter;

the delivery catheter comprising a reception space into which a medical treatment device may by at least partially located.

31. A system as claimed in claim 30 wherein the delivery catheter has a delivery configuration for delivery of a medical treatment device through an alimentary canal to a treatment location, and a deployment configuration for deployment of the medical treatment device at the treatment location.

32. A system as claimed in claim 30 wherein at least part of the delivery catheter is retractable relative to a medical treatment device to deploy the medical treatment device out of the delivery catheter.

33. A system as claimed in claim 30 wherein the system comprises a deployment aid member for location between a medical treatment device and the delivery catheter.

34. A system as claimed in claim 30 wherein the system comprises a medical guidewire.

35. A delivery system for delivering a medical treatment device to a treatment location in an oesophagus as claimed in claim 30.

36. A kit comprising:

—

a medical treatment device; and

a delivery system for delivering the medical treatment device to a treatment location in an alimentary canal as claimed in claim 30.

37. A kit as claimed in claim 36 wherein the medical treatment device is movable between a collapsed configuration and an expanded configuration.

38. A kit as claimed in claim 37 wherein the medical treatment device is substantially folded in the collapsed configuration.

39. A kit as claimed in claim 37 wherein the medical treatment device is biased towards the expanded configuration.