Methods for anchoring suture and approximating tissue
First Claim
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1. A suture anchor delivery device comprising:
- a penetrating member; and
a suture anchor having a delivery configuration in a first shape and a deployment configuration in a second shape, the suture anchor comprising;
a suture anchor body;
a passage extending at least partially through the suture anchor body, the passage sized and configured to receive the penetrating member;
at least one suture opening sized and configured to receive a suture, the at least one suture opening separate from the passage; and
a guiding platform;
wherein the suture anchor is carried on the penetrating member and wherein removing the penetrating member from the suture anchor body changes the shape of the suture anchor from the delivery configuration first shape to the deployment configuration second shape.
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Abstract
An elastically curved suture anchor is resiliently straightened and delivered into tissue by a needle. When the needle is withdrawn, resumption of the curvature provides leverage for anchor rotation as the attached suture is pulled to fasten the anchor within the tissue. A fin at the proximal end of the anchor further increases the rotational leverage and expedites anchor fastening. When two or more anchors with connecting suture are delivered in series on a needle, the tension of the suture helps to draw the anchors together and approximates the pierced tissue.
351 Citations
20 Claims
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1. A suture anchor delivery device comprising:
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a penetrating member; and a suture anchor having a delivery configuration in a first shape and a deployment configuration in a second shape, the suture anchor comprising; a suture anchor body; a passage extending at least partially through the suture anchor body, the passage sized and configured to receive the penetrating member; at least one suture opening sized and configured to receive a suture, the at least one suture opening separate from the passage; and a guiding platform; wherein the suture anchor is carried on the penetrating member and wherein removing the penetrating member from the suture anchor body changes the shape of the suture anchor from the delivery configuration first shape to the deployment configuration second shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An anchor delivery device comprising:
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an anchor having a delivery configuration in a first shape and a deployment configuration in a second shape, the anchor comprising a guiding fin and an anchor tube having a lumen; a penetrating member initially positioned within the anchor tube lumen for releasably carrying the anchor, wherein the penetrating member carries the anchor in the delivery configuration and in the first shape and releases the anchor to the deployment configuration and to the second shape; and a suture connected with the anchor. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of delivering a suture anchor, the suture anchor comprising a suture anchor body sized and configured to be carried externally to penetrating member, at least one suture opening sized and configured to receive a suture, and a guiding platform, comprising:
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advancing a penetrating member to a position past a tissue plane, wherein the penetrating member carries the suture anchor in a delivery configuration in a first shape; withdrawing the penetrating member from the position past the tissue plane, wherein withdrawing the penetrating member releases the suture anchor to a deployment configuration in a second shape; and applying tension to a suture connected to the suture anchor, wherein the suture anchor rotates. - View Dependent Claims (18, 19, 20)
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Specification