Multi Valve Anti-Reflux Prosthesis

• US 20140195006A1
• Filed: 01/07/2014
• Published: 07/10/2014
• Est. Priority Date: 01/08/2013
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Treacy, Gerard, Ryan, Michael, Neilan, John, Liddy, Alison
• Granted Patent: US 9,526,605 B2
• Time in Patent Office: Days
• US Class Current: 623/23.68
• 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 2/2475 Venous valves
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets

Abstract

A prosthesis and a method of 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. The prosthesis also includes a first valve and a second valve operably connected to the body. The first valve has a proximal portion, a distal portion, a distal end extending distally relative to the proximal portion of the body and a lumen extending through the first valve. The first valve is dosed in the absence of a second and third pressure that are greater than a first pressure. The second valve has a proximal portion, a distal portion, a distal end extending distally relative to a proximal portion of the body and a lumen extending through the second valve, the distal end of the first valve extending distal to the distal end of the second valve.

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 first valve operably connected to the body, the first valve having a proximal portion, a distal portion, a distal end extending distally relative to the proximal portion of the body and a lumen extending through the first valve, the first valve being dosed in the absence of a second and a third pressure that are greater than a first pressure; and

a second valve operably connected to the body, the second valve having a proximal portion, a distal portion, a distal end extending distally relative to the proximal portion of the body and a lumen extending through the second valve, the distal end of the first valve extending distal to the distal end of the second valve, the second valve and the first valve controlling flow through the prosthesis.

2. The prosthesis of claim 1, wherein at least a portion of the second valve extends distally within the lumen of the first valve.

3. The prosthesis of claim 1, wherein the second valve is spaced apart from first valve so that the distal end of the second valve is proximal to a proximal end of the first valve.

4. The prosthesis of claim 1, wherein proximal portion of the first valve comprises a sleeve disposed about the body.

5. The prosthesis of claim 1, wherein the second valve is closed in in the absence of the second and the third pressure.

6. The prosthesis of claim 1, wherein the distal portion of the first valve and the distal portion of the second valve are positioned entirely within the body.

7. The prosthesis of claim 1, wherein the first valve, the second valve or both comprise at least one hole extending therethrough.

8. The prosthesis of claim 1, wherein the distal portion of the first valve and the distal portion of the second valve have different thicknesses.

9. The prosthesis of claim 1, wherein at least of portion of the first valve and at least a portion of the second valve are formed from different materials.

10. The prosthesis of claim 1, further comprising a third valve positioned between the first valve and the second valve.

11. The prosthesis of claim 1, wherein the first valve is a non-inverting valve and the second valve is an inverting valve.

12. The prosthesis of claim 1, wherein the first valve comprises a sleeve of flexible material.

13. The prosthesis of claim 1, wherein the distal end of the first valve extends distal to a distal end of the body or the distal end of the first valve and the distal end of the second valve extend distal to a distal end of the body.

14. The prosthesis of claim 1, wherein the second valve is connected to the first valve to operably connect to the body.

15. The prosthesis of claim 1, wherein the distal end of the first valve and the distal end of the second valve are proximally extendable in response to a third pressure that is greater than the first pressure and a second pressure.

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

positioning a body of a prosthesis within the bodily lumen, the prosthesis including a first valve and a second valve;

extending a distal end of the first valve distal to a distal end of the second valve and collapsing the distal end of the first valve on itself so that the first valve is closed in the absence of a second pressure and a third pressure, that are greater than a first pressure;

opening the first valve and the second valve in response to the second pressure so that flow is through the prosthesis in an antegrade direction.

17. The method of claim 16, further comprising inverting the first valve and the second valve in a proximal direction in response to the third pressure that is greater than the first pressure and the second pressure so that flow is through the prosthesis in a retrograde direction.

18. The method of claim 16, comprising extending the second valve within a lumen of the first valve.

19. The method of claim 16, comprising providing a third valve positioned between the first valve and the second valve.

20. The method of claim 16, comprising collapsing the distal end of the second valve on itself so the second valve is closed in the absence of the second pressure and the third pressure.