Knotless suture anchor and methods of use
First Claim
Patent Images
1. A knotless suture anchoring system, said system comprising:
- a first anchor positionable in tissue and having a longitudinal axis;
a cinching mechanism coupled to the first anchor, the cinching mechanism comprising a body having first and second transverse apertures spaced apart along the longitudinal axis and separated by a bar; and
a length of suture threaded through the first and second apertures so as to form a loop around the bar, the suture having first and second extremities extending respectively from the first and second apertures on the same side of the body, the first and second extremities being generally parallel to and overlying one another such that the second extremity is sandwiched between the first extremity and the body, wherein exerting tension on the first extremity compresses the second extremity against the body to prevent movement of the suture relative to the body, and wherein exerting tension on the second extremity allows the suture to move longitudinally relative to the body.
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Abstract
Various devices, systems and methods for knotless suturing of tissue are disclosed. These devices allow sutures to be anchored to bone, and more specifically provide a suture anchor which eliminates the need for knotting the suture. Thus, damaged tissue may be re-attached to a substrate tissue. The anchors have a minimum of moving parts may be suited to being a single molded polymer construction. The anchors will find particular utility in hip and shoulder arthroscopy, e.g. labral re-attachment and similar procedures.
374 Citations
47 Claims
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1. A knotless suture anchoring system, said system comprising:
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a first anchor positionable in tissue and having a longitudinal axis; a cinching mechanism coupled to the first anchor, the cinching mechanism comprising a body having first and second transverse apertures spaced apart along the longitudinal axis and separated by a bar; and a length of suture threaded through the first and second apertures so as to form a loop around the bar, the suture having first and second extremities extending respectively from the first and second apertures on the same side of the body, the first and second extremities being generally parallel to and overlying one another such that the second extremity is sandwiched between the first extremity and the body, wherein exerting tension on the first extremity compresses the second extremity against the body to prevent movement of the suture relative to the body, and wherein exerting tension on the second extremity allows the suture to move longitudinally relative to the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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- 17. The system of 16, wherein the barrel is rotatably disposed in the sidewall aperture, the rotatable barrel having a locked position and an unlocked position, the unlocked position allowing the suture to move, the locked position constraining movement of the suture.
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32. A knotless suture anchoring system, said system comprising:
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a first anchor component having a longitudinal axis and a first cinching mechanism; a second anchor component initially detached from the first anchor component, at least one of the first and second anchor components being adapted for placement directly into bone or other tissue and comprising a retention feature on an exterior surface thereof for retaining the first or second anchor component in said bone or tissue; a coupling mechanism for coupling the second anchor component to the first anchor component; and a length of suture at least partially disposed in the first cinching mechanism, the suture having a first free end and a second free end, wherein the second free end is attached to the second anchor component, and wherein the first cinching mechanism allows the suture to pass through the first cinching mechanism in a first direction when the first free end is tensioned and constrains movement of the suture through the first cinching mechanism in a second direction opposite the first direction. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
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41. A knotless suture anchoring system, said system comprising:
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a length of suture having a first free end and a second free end; a first anchor having a proximal end and a distal end, and being positionable in tissue; a second anchor having a proximal end and a distal end; a first cinching mechanism coupled to either the first anchor or the second anchor, wherein the first free end is at least partially disposed in the first cinching mechanism, and wherein the second free end is attached to the other of the first or the second anchor, and wherein the first cinching mechanism is adapted to allow the suture to be tensioned by pulling the first free end so that the suture passes through the first cinching mechanism in a first direction while movement of the suture through the first cinching mechanism in a second direction opposite the first direction is constrained; and a coupling element attached to one or both of the first and second anchors and adapted to couple the first and the second anchors together end-to-end. - View Dependent Claims (42, 43, 44, 45, 46, 47)
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Specification