Knotless suture anchor system and method of use
First Claim
Patent Images
1. A system for anchoring tissue to bone, comprising:
- a suture anchor having a longitudinal axis, a first leading end and a second, trailing end, the first end having formed therein a groove that creates a distal facing opening in the suture anchor and the second end having a flared portion that renders the suture anchor asymmetrical in a plane that includes the longitudinal axis;
a first loop of suture thread attached to the suture anchor;
a second loop of suture thread attached to the first loop, wherein the first loop and the second loop are interlocked with one another; and
a suture needle having a first, tissue penetrating end and a second, trailing end, wherein the suture needle is attached to the second loop.
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Abstract
A suture anchor system includes a suture anchor, a first loop of suture thread attached to the suture anchor, a suture needle, and a second loop of suture thread which is attached to the suture needle. The first and second suture loops are interlocked with one another. The suture anchor is preferably bioabsorbable, and it has a flared feature on one side of the second or proximal end thereof. The flared feature renders the suture anchor asymmetrical in a plane that includes the longitudinal axis of the anchor. A method for anchoring soft tissue is also disclosed.
631 Citations
39 Claims
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1. A system for anchoring tissue to bone, comprising:
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a suture anchor having a longitudinal axis, a first leading end and a second, trailing end, the first end having formed therein a groove that creates a distal facing opening in the suture anchor and the second end having a flared portion that renders the suture anchor asymmetrical in a plane that includes the longitudinal axis;
a first loop of suture thread attached to the suture anchor;
a second loop of suture thread attached to the first loop, wherein the first loop and the second loop are interlocked with one another; and
a suture needle having a first, tissue penetrating end and a second, trailing end, wherein the suture needle is attached to the second loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
a hollow needle member having an open distal end and a proximal end, the needle member having a substantially cylindrical outer wall;
a tissue penetrating edge formed at the distal end on one portion of the outer wall; and
a slot formed on the distal end, on a portion of the outer wall opposite the tissue penetrating edge, the slot having an opening communicating with the open distal end and the slot being adapted to receive and selectively secure the suture loop closure.
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21. The system of claim 20, further comprising an actuator member selectively disposed within the needle member, the actuator member being selectively slidable between a first position, wherein the actuator is located entirely within the hollow needle and does not engage the suture needle slot, and a second position, wherein the actuator extends at least to the opening of the slot so as to remove the suture closure from within the slot.
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22. The system of claim 21, wherein the actuator member is an elongate rod.
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23. The system of claim 20, wherein the needle member is disposed at a distal end of a suture inserter tool.
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24. A method for anchoring tissue to bone in a patient'"'"'s body, comprising the steps of:
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providing a system for anchoring tissue to bone, comprising a suture anchor having a longitudinal axis, a first, leading end and a second, trailing end, the first end having formed therein a groove that creates a distal facing opening in the suture anchor and the second end having a flared portion that renders the suture anchor asymmetrical in a plane that includes the longitudinal axis, a first loop of suture thread attached to the suture anchor, a second loop of suture thread attached to the first loop, wherein the first loop and the second loop are interlocked with one another, and a suture needle having a first, tissue penetrating end and a second, trailing end, wherein the suture needle is attached to the second loop;
forming a bore in the bone that is accessible through a portal in the patient'"'"'s body;
passing the suture needle through a detached segment of tissue;
pulling the second loop completely through the detached segment of tissue so that a portion of the first loop is positioned over the bore in the bone;
engaging the first end of the suture anchor with a portion of the suture thread of the first loop;
inserting the suture anchor at least partially within the bore such that the first suture loop reattaches the detached segment of tissue in a desired position;
compressing and toggling the suture anchor such that the second end of the anchor penetrates into an inner surface of the bore; and
anchoring the suture anchor in the bore such that the suture anchor is fixedly attached to the bone. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A suture anchor for fixing a suture thread to bone, the suture anchor comprising:
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a substantially elongate body having a longitudinal axis and opposed first and second ends;
a suture thread-engaging groove formed in the first end to form a distally facing opening in the elongate body; and
a flared portion, integral with the second end, that renders the suture anchor asymmetrical in a plane that includes the longitudinal axis. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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Specification