US 7,371,253 B2 · Suture anchor and method

Abstract

A suture anchor for approximating tissue to bone comprises an anchor member for securing the suture anchor to the bone and a plurality of sutures mounted to the anchor member so that the sutures extend outwardly from the anchor member. Each suture has a sharp pointed end for penetrating the tissue and a plurality of barbs which permit movement of the sutures through the tissue in one direction of movement of the pointed end and prevent movement of the sutures relative to the tissue in the opposite direction. The ends of the sutures are inserted and pushed through the tissue along a curvilinear path in a direction away from the bone. The sutures are drawn from exit points longitudinally spaced from the points of insertion and reinserted and advanced along a curvilinear path in the direction away from the bone. The sutures are drawn through the tissue while approximating the tissue adjacent the bone along the suture and leaving a length of the sutures in the tissue. The exit and entry points of two of the sutures are adjacent and the paths of the sutures substantially mirror one another.

A method for joining one end and another end of a tendon, the method comprising the steps of:

(a) inserting a first pointed end of a first two-way suture into the one end of the tendon, where the first two-way suture has first and second sharp pointed distal ends for penetrating tissue, a body, a first plurality of barbs extending from the periphery of the body for a first portion of the first suture, the first barbs permitting movement of the first suture through the tissue in a direction of movement of the first end and preventing movement of the first suture relative to the tissue in a direction opposite the direction of movement of the first end, and a second plurality of barbs extending from the periphery of the body for a second portion of the first suture, the second barbs permitting movement of the first suture through the tissue in a direction of movement of the second end and preventing movement of the first suture relative to the tissue in a direction opposite the direction of movement of the second end;
(b) pushing the first pointed end of the first suture through the tendon along a curvilinear path until the first pointed end of the first suture extends out of the tendon at a first exit point longitudinally spaced from the one end of the tendon;
(c) gripping the first pointed end of the first suture and pulling the first pointed end out of the tendon for drawing the first portion of the first suture through the tendon and leaving a length of the first portion of the first suture in the tendon between the one end and the exit point;
(d) inserting the second pointed end of the first suture into the other end of the tendon;
(e) pushing the second pointed end of the first suture through the tendon along a curvilinear path until the second pointed end of the first suture extends out of the tendon at a second exit point longitudinally spaced from the other end of the tendon;
(f) gripping the second pointed end of the first suture and pulling the second pointed end out of the tendon for drawing the second portion of the first suture through the tendon and leaving a length of the second portion of the first suture in the tendon between the other end and the second exit point;
(g) repeating steps (a) through (f) with the first and the second pointed ends of a second two-way suture so that the first and the second exit points of the second suture in the tendon are substantially co-located with the corresponding first and the corresponding second exit points of the first suture and the path of the second suture substantially mirrors the path of the first suture, where the second two-way suture has first and second sharp pointed distal ends for penetrating tissue, a body, a first plurality of barbs extending from the periphery of the body for a first portion of the second suture, the first barbs permitting movement of the second suture through the tissue in a direction of movement of the first end and preventing movement of the second suture relative to the tissue in a direction opposite the direction of movement of the first end, and a second plurality of barbs extending from the periphery of the body for a second portion of the second suture, the second barbs permitting movement of the second suture through the tissue in a direction of movement of the second end and preventing movement of the second suture relative to the tissue in a direction opposite the direction of movement of the second end;
(h) for a first pass with the first portion of the first suture, reinserting the first pointed end of the first suture into the one end of the tendon at a first entry point immediately adjacent the first exit point of the first suture;
(i) pushing the first pointed end of the first suture though the tendon along a curvilinear path until the first pointed end of the first suture re-exits out of the same side of the tendon at a re-exit point longitudinally spaced from the first entry point;
(j) gripping the first pointed end of the first suture and pulling the first pointed end out of the tendon for drawing the first portion of the first suture though the tendon and leaving a length of the first portion of the first suture in the tendon between the first entry point and the re-exit point;
(k) making as many passes as deemed necessary in a wave-like pattern with the first portion of the first suture;
(l) repeating steps (h) though (k) with the first portion of the second suture;
(m) repeating steps (h) though (l) with the respective second portions of the first suture and the second suture;
(n) bringing the one end and the other end of the tendon together by pushing the tendon ends along the sutures while maintaining tension on the remaining free portions of the sutures;
and
(o) removing the remaining free portions of the sutures.

13 more elements

Suture anchor and method

Life of this patent

Suture anchor and method

Life of this patent

Abstract

Claims25