Restricted wedge suture anchor and method for soft tissue repair
First Claim
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1. An anchor device for repairing soft tissue with a suture, the anchor device comprising:
- an anchor body comprising a wall, and the wall defining a lumen;
a suture locking wedge movably disposed at least partially within the lumena suture being in contact with the suture locking wedge, wherein the suture extends-through the anchor device and loops around the suture locking wedge; and
wherein the anchor body further comprises a wedge guide comprising at least one elongate arcuate shaped slot formed in the wall of the anchor body, wherein the elongate arcuate shaped slot engages a portion of the suture locking wedge so as to restrict movement of the suture locking wedge to a path such that when a tension force is applied to a first limb of the suture, the suture locking wedge is urged into a first position in which the suture is compressed between the suture locking wedge and a first contact location of the anchor body and wherein the path has a length that comprises an angular dimension and a translational dimension with respect to a longitudinal axis of the anchor body.
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Abstract
A suture anchor device and method for attaching soft tissue to bone includes an anchor body and a suture locking wedge movably disposed within the anchor body. Tension applied to one side of a suture causes the suture locking wedge to move in a translational and angular dimension to a position which compresses the suture, thereby locking the suture in the anchor. The anchor body includes tracks or slots which guide the suture locking wedge from the unlocked open configuration to the locked configuration.
385 Citations
34 Claims
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1. An anchor device for repairing soft tissue with a suture, the anchor device comprising:
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an anchor body comprising a wall, and the wall defining a lumen; a suture locking wedge movably disposed at least partially within the lumen a suture being in contact with the suture locking wedge, wherein the suture extends-through the anchor device and loops around the suture locking wedge; and wherein the anchor body further comprises a wedge guide comprising at least one elongate arcuate shaped slot formed in the wall of the anchor body, wherein the elongate arcuate shaped slot engages a portion of the suture locking wedge so as to restrict movement of the suture locking wedge to a path such that when a tension force is applied to a first limb of the suture, the suture locking wedge is urged into a first position in which the suture is compressed between the suture locking wedge and a first contact location of the anchor body and wherein the path has a length that comprises an angular dimension and a translational dimension with respect to a longitudinal axis of the anchor body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An anchor device for attaching soft tissue to bone with a suture, the anchor device comprising:
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a suture locking wedge movably disposed at least partially within the anchor device and being in contact with the suture when the suture extends through the anchor device and loops around the suture locking wedge; and an elongate arcuate shaped wedge track formed in a portion of a wall of the anchor device engaging with and guiding the suture locking wedge along a path to a first position when a tension force is applied to a first limb of the suture in which the suture is compressed between the suture locking wedge and a first contact location of the anchor device and wherein the path is defined by a length of the elongate arcuate shaped wedge track having a portion which forms an angle with a longitudinal axis of the anchor. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for securing soft tissue to bone comprising:
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(a) securing a first limb of a length of suture to the soft tissue to be attached to the bone; (b) extending the length of suture through an anchor body and around a surface of a suture locking wedge movably disposed at least partially within the anchor body; (c) fixing the anchor body within the bone; (d) approximating the soft tissue in proximity to the anchor body by applying a first tension to a second limb of the length of suture, such that the length of suture slides around the suture locking wedge so as to draw the soft tissue toward the anchor body; and (e) moving the suture locking wedge along a wedge path defined in the anchor body such that the suture locking wedge moves to a first suture locking position, compressing the length of suture between the suture locking wedge and the anchor body, and wherein the moving comprises moving the suture locking wedge along the wedge path, the wedge path defined by a slot formed in the anchor body that engages the suture locking wedge and wherein the slot has an elongate arcuate shape. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for securing soft tissue to bone comprising:
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(a) securing a first limb of a length of suture to the soft tissue to be attached to the bone; (b) extending the length of suture through an anchor body and around a surface of a suture locking wedge movably disposed at least partially within the anchor body; (c) fixing the anchor body within the bone; (d) approximating the soft tissue in proximity to the anchor body by applying a first tension to a second limb of the length of suture, such that the length of suture slides around the suture locking wedge so as to draw the soft tissue toward the anchor body until the soft tissue is moved within a threshold distance from the anchor body, such that a second tension arises on the first limb from the soft tissue; (e) halting applying the first tension on the second limb, causing the second tension on the first limb to move the suture locking wedge along a wedge path defined in the anchor body such that the suture locking wedge moves to a first suture locking position, compressing the length of suture between the suture locking wedge and the anchor body, and wherein the moving comprises moving the suture locking wedge in a direction comprising an angular dimension and a translational dimension; (f) increasing the second tension on the first limb by pulling on the first limb by hand; and (g) repeating steps (d) and (f) to reposition the soft tissue and to re-tension and lock the suture.
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Specification