Implantable prosthesis for soft tissue repair

• US 8,298,290 B2
• Filed: 09/20/2004
• Issued: 10/30/2012
• Est. Priority Date: 09/20/2004
• Status: Active Grant

• Current Assignee: Davol Incorporated (Becton, Dickinson & Co)
• Original Assignee: Davol Incorporated (Becton, Dickinson & Co)
• Inventors: Vadurro, Valerie L., Clarke, Stephen T., Darois, Roger E., Hass, David W., Pélissier, Edouard
• Primary Examiner(s): Jackson, Gary
• Assistant Examiner(s): BLATT, ERIC D
• Application Number:
  US10/945,532
• Publication Number:
  US 20060064175A1
• Time in Patent Office: 2,962 Days
• Field of Search: 623 2372- 2374, 606/151, 606/213
• US Class Current: 623/23.72
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes

Abstract

An implantable prosthesis for repairing or augmenting anatomical defects, including an inguinal hernia. The prosthesis includes a repair fabric having a body portion and a support member that may be arranged in or on the repair fabric to help deploy the repair fabric at the surgical site and/or help inhibit folding or buckling of the repair fabric. The support member may substantially surround the body portion to help deploy and/or hold the body portion in a spread out configuration for covering the defect. The support member may include first and second ends that are spaced apart to form an interruption so that a slit or keyhole arrangement may be formed in the repair fabric through the interruption and into an interior region of the body portion to receive a body structure, including a cord structure such as the spermatic cord. A portion of the support member may deviate inwardly toward the body portion to form an indentation that is adapted to be positioned adjacent to a body structure, such as the femoral vessels during an inguinal hernia repair procedure. The indentation may be offset to one side of the prosthesis. The support member and/or the repair fabric may be configured so as to inhibit protrusion of the ends of the support member through the fabric in the vicinity of the interruption. The support member may be formed of a monofilament comprised of a non-resorbable or resorbable material.

Claims

1. An implantable prosthesis for repairing a tissue or muscle wall defect near a body structure, the implantable prosthesis comprising:

a patch of repair fabric including a body portion that is constructed and arranged to cover at least a portion of the tissue or muscle wall defect, the patch including an outer periphery and having an oval shape with a major axis and a minor axis, the patch including a first end and an opposite second end and a first side and a second side extending between the first and second ends, the major axis extending from the first end to the second end; and

a member substantially surrounding the body portion of the patch, the member terminating in first and second free ends that are spaced apart to form an interruption located at one of the first and second ends of the patch, the member including an indentation that is adapted to be positioned adjacent the body structure, the indentation formed by a portion of the member deviating inwardly away from the outer periphery and toward the body portion, the indentation being spaced from the interruption and located along the first side or the second side of the patch, the indentation being offset from the minor axis in a direction toward the interruption.

2. The implantable prosthesis according to claim 1, wherein the indentation has a curved shape.

3. The implantable prosthesis according to claim 2, wherein the member has a convex shape along a substantial portion thereof and the indentation has a concave shape.

4. The implantable prosthesis according to claim 1, wherein the interruption is located along the major axis.

5. The implantable prosthesis according to claim 1, wherein the patch includes an obtuse end and an acute end, the obtuse end being larger than the acute end.

6. The implantable prosthesis according to claim 5, wherein the indentation is offset from the minor axis toward the acute end.

7. The implantable prosthesis according to claim 6, wherein the interruption is located at the acute end along the major axis.

8. The implantable prosthesis according to claim 7, wherein the interruption is centered about the major axis.

9. The implantable prosthesis according to claim 1, wherein at least one of the repair fabric and the first and second ends of the member is constructed and arranged to inhibit the first and second ends from protruding through the repair fabric.

10. The implantable prosthesis according to claim 1, wherein the body portion is constructed and arranged to cover at least a portion of the tissue or muscle wall defect in a spread out configuration.

11. The implantable prosthesis according to claim 10, wherein the member is constructed and arranged to help deploy and/or hold the body portion in the spread out configuration.

12. The implantable prosthesis according to claim 11, wherein the member has a resiliency that allows the member to deform from an initial shape and then return to the initial shape to return the body portion of the patch to the spread out configuration.

13. The implantable prosthesis according to claim 1, wherein the repair fabric includes a first layer and a second layer, the member being disposed between the first layer and the second layer.

14. The implantable prosthesis according to claim 13, wherein the member is disposed within a channel defined by an inner seam and an outer seam joining the first layer to the second layer.

15. The implantable prosthesis according to claim 13, wherein the first layer has a first shape and the second layer has a second shape that is different from the first shape.

16. The implantable prosthesis according to claim 15, wherein the second layer has a generally annular shape.

17. The implantable prosthesis according to claim 16, wherein the second layer includes an inner edge that follows the shape of the member.

18. The implantable prosthesis according to claim 1, wherein the repair fabric is susceptible to the formation of adhesions with tissue and organs.

19. The implantable prosthesis according to claim 1, wherein the repair fabric has a plurality of interstices that are constructed and arranged to allow tissue ingrowth.

20. The implantable prosthesis according to claim 19, wherein the repair fabric includes at least one layer of mesh fabric.

21. The implantable prosthesis according to claim 1, wherein the member includes a monofilament.

22. The implantable prosthesis according to claim 1, wherein the member includes a single indentation along the entire length thereof.

23. The implantable prosthesis according to claim 1, wherein the outer periphery of the patch is symmetric about the major axis and asymmetric about the minor axis.

24. The implantable prosthesis according to claim 1, wherein the portion of the member forming the indentation has a first end and a second end, and wherein the first end of the portion of the member is located a first distance from the major axis in a direction perpendicular to the major axis and the second end of the portion of the member is located a second distance from the major axis in a direction perpendicular to the major axis, the first distance being greater than the second distance such that the indentation is radially skewed relative to the minor axis.