Rotational securing of a suture
First Claim
Patent Images
1. A suture anchor, comprising:
- a first body portion defining a recess at a proximal end, a suture receiving channel transverse to the recess, and a bone engaging feature at a distal end to fixedly engage a bony tissue;
a second body portion defining an eyelet for receipt of a suture where engaging the second body portion rotates the eyelet with respect to the first body portion; and
a rotational ratcheting device to provide only one-directional rotational movement of the second body portion with respect to the first body portion;
wherein rotation of the second body portion causes the suture to form a twist to frictionally secure the suture;
wherein the recess provides a clearance to receive the twist below the eyelet between a distal end of the second body portion adjacent the eyelet and a bottom of the recess when the suture receiving channel and the eyelet are positioned in the same plane.
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Abstract
A suture fixation apparatus having a first body portion having a bone engaging feature to fixedly engage a bony tissue and a second body portion defining an eyelet for receipt of a suture. The second body portion is rotatable with respect to the first body portion. Rotating the second body portion causes the suture to form a twist to frictionally secure the suture.
145 Citations
18 Claims
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1. A suture anchor, comprising:
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a first body portion defining a recess at a proximal end, a suture receiving channel transverse to the recess, and a bone engaging feature at a distal end to fixedly engage a bony tissue; a second body portion defining an eyelet for receipt of a suture where engaging the second body portion rotates the eyelet with respect to the first body portion; and a rotational ratcheting device to provide only one-directional rotational movement of the second body portion with respect to the first body portion; wherein rotation of the second body portion causes the suture to form a twist to frictionally secure the suture; wherein the recess provides a clearance to receive the twist below the eyelet between a distal end of the second body portion adjacent the eyelet and a bottom of the recess when the suture receiving channel and the eyelet are positioned in the same plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15)
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10. A suture anchor comprising:
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a first body portion defining a recess at a proximal end and having a first suture receiving channel; and a second body portion having a second suture receiving channel; wherein the first suture receiving channel and the second suture receiving channel have an aligned position to provide a continuous passage for movement of a suture therebetween and at least one of the first suture receiving channel and the second suture receiving channel is adapted to be rotated relative to the other into a deployed position to misalign the first suture receiving channel and the second suture receiving channel to prevent movement of the suture therebetween, the continuous passage being aligned along the transverse axis of he suture anchor; wherein the relative rotation causes the suture to form a twist below the second suture receiving channel in a clearance provided by the recess between a distal end of the second body portion adjacent the second suture receiving channel and a bottom of the recess when the first and second suture receiving channels are positioned in the same plane. - View Dependent Claims (11, 12, 16, 17, 18)
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13. A suture anchor comprising:
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a threaded suture anchor body having a bone engaging surface feature to fixedly engage a bony tissue where the suture anchor body has a proximal end defining a recess and a suture receiving channel communicating with the recess, and a distal end; a rotatable base having an eyelet where the rotatable base and the eyelet are located in the recess of the threaded suture anchor body and are distal to the suture anchor body proximal end; and a rotational ratcheting device to provide only one-directional rotational movement of the threaded suture anchor body with respect to the rotatable base; wherein rotation of the rotatable base causes the suture to form a twist to frictionally secure the suture; wherein the recess provides clearance to receive the twist below the eyelet between a distal end of the rotatable base adjacent the eyelet and a bottom of the recess when the eyelet and the suture receiving channel are positioned in the same plane.
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Specification