Suture anchoring device and method
First Claim
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1. A suture anchor, comprising:
- a rivet for insertion distally at least partially into a hole in bone, said rivet including a body portion having a distal end and an axially extending aperture, and at least two legs extending proximally from said body portion, said legs being radially expandable in response to proximal movement of a setting pin;
b) a setting pin for slidable positioning through said axially extending aperture, said setting pin having means for holding a suture, said setting pin being movable between a distal position with respect to said rivet wherein said rivet legs are not expanded, and a proximal position with respect to said rivet wherein said rivet legs are urged to a radially expanded configuration, said means for holding a suture being located in proximity to the distal end of said setting pin, and said setting pin further comprising at least two suture accommodating slots extending longitudinally along the sides of said setting pin; and
c) means for preventing rotation of the setting pin within said axially extending aperture, wherein said rivet legs are spaced apart from each other and said suture accommodating slots are aligned with the space between the legs of the rivet.
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Abstract
A suture anchor includes a rivet for insertion into a predrilled bore hole in bone, and a setting pin which extends through an axial aperture in the rivet. Preferably the setting pin has barbed legs which are radially expandable to frictionally engage the walls of the bore hole to secure the anchor therein. The setting pin includes a suture accommodating aperture, surface, and/or slot. In one embodiment, a snap-fitting detent and notch are engageable with each other to form an escapement mechanism to position the setting pin at discrete positions within the axial aperture of the rivet.
895 Citations
18 Claims
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1. A suture anchor, comprising:
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a rivet for insertion distally at least partially into a hole in bone, said rivet including a body portion having a distal end and an axially extending aperture, and at least two legs extending proximally from said body portion, said legs being radially expandable in response to proximal movement of a setting pin; b) a setting pin for slidable positioning through said axially extending aperture, said setting pin having means for holding a suture, said setting pin being movable between a distal position with respect to said rivet wherein said rivet legs are not expanded, and a proximal position with respect to said rivet wherein said rivet legs are urged to a radially expanded configuration, said means for holding a suture being located in proximity to the distal end of said setting pin, and said setting pin further comprising at least two suture accommodating slots extending longitudinally along the sides of said setting pin; and c) means for preventing rotation of the setting pin within said axially extending aperture, wherein said rivet legs are spaced apart from each other and said suture accommodating slots are aligned with the space between the legs of the rivet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A suture anchor comprising:
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a rivet for insertion distally into a hole in bone, said rivet including a body portion having a distal end and an axially extending aperture defining an inner surface, a head portion proximal to the body portion and having a wider diameter than said body portion, and at least two legs extending distally from said body portion, said legs being radially expandable in response to distal movement of a setting pin through said aperture; a setting pin for slidable positioning through said axially extending aperture, said setting pin having means for holding a suture, and said setting pin being movable between a proximal position with respect to said rivet wherein said rivet legs are not expanded, and a distal position with respect to said rivet wherein said rivet legs are urged to a radially expanded configuration; and
,escapement means for preventing movement of the setting pin when it has reached any one of one or more discrete location with respect to said rivet. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification