Anti-Aspiration Valve

• US 20130289711A1
• Filed: 03/11/2013
• Published: 10/31/2013
• Est. Priority Date: 04/27/2012
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Inventors: Liddy, Alison, Neilan, John, Ryan, Michael, Treacy, Gerard
• Granted Patent: US 9,427,303 B2
• Time in Patent Office: Days
• US Class Current: 623/1.24
• 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 2/06 Blood vessels
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A prosthesis and a method for making a prosthesis for controlling flow through a bodily lumen are provided. The prosthesis includes a body having a proximal portion, a distal portion and a lumen extending therethrough and further includes a valve operably connected to the body. The valve has a distal end including a first portion of a surface of the valve lumen and a second portion of the surface that contact each other and form a seal in a closed configuration. The distal end of the valve is formed such that the first portion and the second portion of the surface of the valve lumen contact each other and the distal end is configured to open in response to a pressure that is greater than atmospheric pressure.

Claims

1. A prosthesis for controlling flow through a bodily lumen, the prosthesis comprising:

a body having a proximal portion, a distal portion and a lumen extending therethrough;

a valve operably connected to the body, the valve having a proximal portion, a distal portion and a lumen extending through the valve, the valve lumen operably connected to the body lumen, the valve having a distal end comprising a first portion of a surface of the valve lumen and a second portion of the surface that contact each other and form a seal in a closed configuration;

wherein the distal end of the valve is formed to have the closed configuration such that the first portion and the second portion of the surface of the valve lumen contact each other; and

wherein the distal end is configured to open in response to a pressure that is greater than atmospheric pressure.

2. The prosthesis of claim 1, wherein the first portion and the second portion form the seal.

3. The prosthesis of claim 1, wherein the valve comprises an attachment portion to retrofit the valve into the body that has been placed in a patient'"'"'s lumen.

4. The prosthesis of claim 1, wherein the valve is formed on a mold.

5. The prosthesis of claim 1 wherein the valve comprises a tapered distal end.

6. The prosthesis of claim 1, wherein the valve comprises a tricuspid-shaped distal end.

7. The prosthesis of claim 1, wherein the valve comprises a U-shaped distal end.

8. The prosthesis of claim 1, wherein the valve comprises a cylindrically shaped proximal portion sized and shaped to fit with the body.

9. The prosthesis of claim 1, wherein the valve is tapered inward or tapered outward from the proximal portion to the distal portion of the valve.

10. The prosthesis of claim 1, wherein the proximal portion of the valve is positioned within the lumen of the body.

11. The prosthesis of claim 1, wherein the valve is configured to move to an open configuration in response to the pressure comprising a first pressure in an antegrade direction wherein the first portion and the second portion of the surface are spaced apart.

12. The prosthesis of claim 10, wherein the valve is configured to move to the open configuration in response to a second pressure that is greater than the first pressure.

13. The prosthesis of claim 11, wherein the valve is configured to at least partially evert so that the distal portion of the valve is proximal to the proximal portion of the valve in response to the second pressure.

14. The prosthesis of claim 1, wherein the valve comprises a curve along a longitudinal axis or a curve along a circumference of the valve.

15. The prosthesis of claim 1, wherein the distal end has rectangular cross sectional shape in the closed configuration and a circular shape in an open configuration.

16. A method of making a prosthesis for controlling flow through a bodily lumen, the method comprising:

providing a mold for forming at least a distal portion of a valve of the prosthesis, the mold comprising a distal end portion having a reduced cross-sectional area relative to a cross-sectional area of a proximal portion of the mold;

providing a solution for coating onto the mold;

coating the mold with the solution to form the valve;

removing the mold from the valve so that a first portion and a second portion of a surface of a lumen of the valve contact each other when the mold is removed from the distal end of the valve.

17. The method of claim 16, further comprising spray coating or dip coating the mold to form the valve.

18. The method of claim 16, comprising providing the mold having a u-shaped distal end.

19. The method of claim 16, comprising providing a body and connecting the body to the valve to form the prosthesis.

20. The method of claim 16, comprising providing an attachment portion for connecting the valve to a prosthesis that is positioned within a patient'"'"'s body lumen.