Ring cinch assembly to attach bone to tissue
First Claim
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1. A bone anchor system for coupling tissue to bone, the bone anchor system comprising:
- a main body configured to be placed in a bone, the main body comprising a proximal end, a distal end, and a cavity, the cavity comprising a first opening at or near the proximal end; and
a locking assembly at least partially disposed in the cavity, the locking assembly comprising;
a first locking element;
a second locking element interacting with the first locking element, the first and second locking elements movable with respect to the cavity; and
a filament extending along a suture path through a second opening in the first locking element in a direction toward the second locking element, through a suture gap between the first locking element and the second locking element, around the second locking element, through a third opening in the second locking element, and back through the second opening, wherein the first and second locking elements are positionable with respect to each other such that the filament is moveable along the suture path in a first direction and inhibited from moving in a second direction.
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Abstract
Systems, apparatuses and methods for securing tissue to bone using a bone anchoring system are described. Methods and apparatuses may allow transformation between locked and unlocked states, thereby allowing adjustment of the tension in the suture. The apparatus and/or methods may allow unidirectional movement of a suture, while preventing slippage or movement of the suture and tissue in the opposite direction. Ends of a suture may be individually tensioned to adjust positioning of a tissue with respect to a bone.
340 Citations
27 Claims
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1. A bone anchor system for coupling tissue to bone, the bone anchor system comprising:
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a main body configured to be placed in a bone, the main body comprising a proximal end, a distal end, and a cavity, the cavity comprising a first opening at or near the proximal end; and a locking assembly at least partially disposed in the cavity, the locking assembly comprising; a first locking element; a second locking element interacting with the first locking element, the first and second locking elements movable with respect to the cavity; and a filament extending along a suture path through a second opening in the first locking element in a direction toward the second locking element, through a suture gap between the first locking element and the second locking element, around the second locking element, through a third opening in the second locking element, and back through the second opening, wherein the first and second locking elements are positionable with respect to each other such that the filament is moveable along the suture path in a first direction and inhibited from moving in a second direction. - 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, 24, 25, 26, 27)
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Specification