SELF-LOCKING SUTURE ANCHOR
First Claim
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1. A method for anchoring a suture, comprising:
- implanting an anchor member in bone, the anchor member having a cavity extending therethrough with opposite open ends;
moving a deployment shaft to position insertion element in the cavity in the anchor member, the insertion element and the anchor member engaging a suture extending through the cavity to lock a loop of suture extending from the cavity in a fixed position; and
frangibly detaching the deployment shaft from the insertion element.
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Abstract
A tissue anchor having a length of filament held so that an applied force greater than a threshold force will cause the filament to move longitudinally, while an applied force less than the threshold force will not move the filament, and methods of attaching soft tissue to bone using such an anchor.
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Citations
12 Claims
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1. A method for anchoring a suture, comprising:
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implanting an anchor member in bone, the anchor member having a cavity extending therethrough with opposite open ends; moving a deployment shaft to position insertion element in the cavity in the anchor member, the insertion element and the anchor member engaging a suture extending through the cavity to lock a loop of suture extending from the cavity in a fixed position; and frangibly detaching the deployment shaft from the insertion element. - View Dependent Claims (2, 3, 4)
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5. A method for anchoring tissue to bone, comprising:
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implanting an anchor member in a bone tunnel; applying tension to a deployment shaft attached to an insertion element to pull the insertion element into a cavity formed in the anchor member; applying tension to a frangible portion formed between the deployment shaft and the insertion element to cause the frangible portion to shear to separate the deployment shaft from the insertion element. - View Dependent Claims (6, 7, 8)
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9. A method for anchoring tissue to bone, comprising:
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implanting an anchor element in a bone tunnel, the anchor element having a suture passing through a cavity in the anchor element, forming a loop segment, and passing back through the cavity in the anchor element; and inserting an insertion element into the cavity in the anchor element to hold the suture therein by interference fit. - View Dependent Claims (10, 11, 12)
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Specification