Absorbable anchor for hernia mesh fixation

• US 8,216,272 B2
• Filed: 12/03/2010
• Issued: 07/10/2012
• Est. Priority Date: 04/27/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Shipp, John I.
• Primary Examiner(s): Nguyen, Tuan V
• Application Number:
  US12/959,435
• Publication Number:
  US 20110071556A1
• Time in Patent Office: 585 Days
• Field of Search: 606/295, 606/301, 606/305, 606/312, 606/316, 606/151, 606/213, 606/157, 606/158
• US Class Current: 606/219
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/0648 threaded, e.g. tacks with a screw thread

Abstract

A delivery device for delivering at least one surgical anchor into a patient'"'"'s tissue is provided and includes a housing; a delivery tube with distal and proximal ends, the delivery tube including a retention member disposed at the distal end thereof and extending inwardly at an angle transverse with respect to a longitudinal axis of the delivery tube; and a reciprocating anchor carrier with distal and proximal positions and distal and proximal ends, the distal end of the anchor carrier terminating in a tissue penetrator member, the anchor carrier being moveable distally and proximally with respect to the delivery device, the tissue penetrator member defining an annular shoulder configured to removably retain a plurality of surgical anchors about the anchor carrier.

Claims

1. A delivery device for delivering at least one surgical anchor into a patient'"'"'s tissue, the delivery device comprising:

a. a housing;

b. a delivery tube with distal and proximal ends, the delivery tube including a retention member disposed at the distal end thereof and extending inwardly at an angle transverse with respect to a longitudinal axis of the delivery tube; and

c. a reciprocating anchor carrier with distal and proximal positions and distal and proximal ends, the distal end of the anchor carrier terminating in a tissue penetrator member, the anchor carrier being moveable distally and proximally with respect to the delivery device, the tissue penetrator member defining an annular shoulder configured to removably retain a plurality of surgical anchors about the anchor carrier.

2. The device of claim 1, wherein the delivery device includes a plurality of surgical anchors, wherein each of the plurality of surgical anchors are located radially about the anchor carrier, each surgical anchor having a penetration section and a head section.

3. The device of claim 1, wherein the delivery device includes a plurality of surgical anchors, wherein each of the plurality of surgical anchors includes a blunt distal end.

4. The device of claim 1, wherein the delivery device includes a plurality of surgical anchors, wherein each of the plurality of surgical anchors includes one or more barbs for engagement with the tissue.

5. The device of claim 1, wherein the delivery device includes a plurality of surgical anchors, wherein each of the plurality of surgical anchors includes one or more slits to allow the surgical anchor to flex open.

6. The device of claim 5, wherein the one or more slits extend proximally from the distal end of the surgical anchor to allow the distal end of the surgical anchor to flex to facilitate removal of the surgical anchor from the anchor carrier.

7. The device of claim 1, wherein the annular shoulder defines an outer diameter that is substantially similar to an outer diameter defined by a distal end of the surgical anchor.

8. The device of claim 1, wherein the delivery device includes a plurality of surgical anchors, wherein each of the plurality of surgical anchors defines an internal channel, the internal channel having a constricted section along a longitudinal length of the surgical anchor.

9. The device of claim 1, wherein the tissue penetrating member and a distal portion of a distal-most surgical anchor is configured to provide a substantially smooth transition between the tissue penetrating member and the distal portion of the distal-most surgical anchor.

10. The device of claim 1, wherein the annular shoulder tapers inward from the tissue penetrating member to the anchor carrier.

11. The device of claim 1, wherein proximal movement of the annular shoulder provides a flexing force to open a distal end of a distal-most surgical fastener.