Implantable penile prosthesis

Patent metadata

Field	Value
Publication number	US-10729547-B2
Application number	US-201815989919-A
Country	US
Kind code	B2
Filing date	May 25, 2018
Priority date	Sep 27, 2012
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

The present application is generally directed to an expandable sleeve component of an implantable penile prosthesis, to a prosthesis containing the sleeve, and to related methods of preparation and use. More specifically, the present application is directed to an implantable penile prosthesis having a cylindrical polymeric (e.g., extruded, molded, etc.) sleeve for controlling cylinder expansion upon placement of the prosthesis within a corpus cavemosum and expansion during use.

First claim

The invention claimed is:

1. An implantable penile prosthesis comprising:
an elongate inflatable inner body defining an inflatable chamber, the inflatable chamber in fluid communication with a source of pressurizing fluid; and
an expandable polymeric sleeve located along a length of an outer surface of the elongate inflatable inner body, the polymeric sleeve defining a plurality of openings.

2. The implantable penile prosthesis as recited in claim 1 comprising:
an inflatable cylinder including:
an outer tube,
a front tip, and
a rear tip; and

a pump capable of pressurizing the fluid;
a fluid reservoir in communication with the pump and the inner body, the expandable polymeric sleeve located along a length of an outside of the elongate inflatable inner body and within the outer tube.

3. The prosthesis as recited in claim 2 , wherein the polymeric sleeve comprises thermoplastic elastomeric polymer.

4. The prosthesis as recited in claim 3 , wherein the polymeric sleeve comprises at least 40, 50, 60, 70, 80, 90, 95, or 99 weight percent thermoplastic elastomeric polymer.

5. The prosthesis as recited in claim 1 , wherein the polymeric sleeve comprises at least 40, 50, 60, 70, 80, 90, 95, or 99 weight percent extruded or molded polymer.

6. The prosthesis as recited in claim 5 , wherein the polymeric sleeve is elastically expandable.

7. The prosthesis as recited in claim 6 , wherein the polymeric sleeve is in-elastically expandable.

8. The prosthesis as recited in claim 7 , wherein the polymeric sleeve comprises fenestrations defined by sidewall structures capable of transitioning between a relaxed disposition and an extended disposition.

9. The prosthesis as recited in claim 8 , wherein the polymeric sleeve comprises fenestrations defined between longitudinal spokes connected by laterally-extending shaped ribs capable of in-elastically transitioning between a relaxed disposition and an extended disposition.

10. The prosthesis as recited in claim 9 , wherein the ribs have a shape selected from at least one of a chevron, an “S” shape, a “U” shape, or a “V” shape.

11. The prosthesis as recited in claim 8 , wherein the polymeric sleeve comprises rectangular fenestrations defined between longitudinal spokes and laterally connecting linear ribs, the ribs comprising laterally-extending rectangular bodies capable of extending elastically.

12. The prosthesis as recited in claim 8 , wherein the polymeric sleeve comprises diamond-shaped fenestrations defined between diagonally-extending linear ribs, the ribs including diagonally-extending rectangular bodies capable of extending elastically.

13. The prosthesis as recited in claim 6 , wherein the polymeric sleeve is non-fenestrated and is capable of extending elastically.

14. The prosthesis as recited in claim 13 , comprising:
a pump in fluid communication with the inflatable chamber.

15. The prosthesis as recited in claim 14 , wherein the polymeric sleeve has a uniform thickness along a length between a first end and a second end.

16. The prosthesis in recited at claim 14 , wherein the polymeric sleeve has non-uniform thickness along a length between a first end and a second end.

17. The prosthesis as recited in claim 14 , wherein the polymeric sleeve includes sidewall structures of varying width, thickness, or both.

18. The prosthesis as recited in claim 14 , wherein the polymeric sleeve includes sidewall structures of relatively greater width, thickness, or both, at a location of increased wear potential due to bending, kinking, or flexing.

19. A method of simulating a natural erection with a penile prosthesis adapted to be implanted in a corpus cavernosum, the method comprising:
providing an implantable penile prosthesis having an elongate inflatable inner body defining an inflatable chamber, the inflatable chamber in fluid communication with a source of pressurizing fluid, and an expandable polymeric sleeve located along a length of an outer surface of the elongate inflatable inner body, the polymeric sleeve defining a plurality of openings; and
controlling an increase in diameter of the inner body upon inflation by adapting the expandable polymeric sleeve to allow the inner body to increase in diameter to a maximum inflated inner body diameter that is not more than 180 percent of a filled and non-pressurized inner body diameter.

20. The method of claim 19 , wherein the inflated inner body exhibits a chamber pressure in a range from about 12 to 20 pounds per square inch (gauge).

Assignees

• Boston Scient Scimed Inc

Inventors

• Darnell Ryan
• Berkenes Robert J
• Rykhus Robert L

Classifications

• A61F2/484

  Fluid means, i.e. hydraulic or pneumatic · CPC title

• A61F2230/0069

  cylindrical · CPC title

• A61F2210/0071

  thermoplastic · CPC title

• F04C2270/041

  Controlled or regulated · CPC title

• A61F2/26 Primary

  Penis implants · CPC title