Fenestrated locking suture anchor assembly
The technology includes an anchor assembly for tissue repair having an open helical coil sleeve and a tip structure. The tip structure includes an aperture for passing a suture and a suture capture member for capturing a suture. The technology also includes an anchor driver for installing an anchor into bone. The anchor driver includes an outer shaft and a sleeve advancement member for advancing the sleeve as well as an inner shaft and a suture capture advancement member for advancing the suture capture member. The technology also includes a system for tissue repair having an anchor assembly and an anchor driver for installing the anchor assembly into bone.
1 . A tissue repair system comprising:
an anchor comprising:
a sleeve having a proximal end and a distal end, a helical thread extending between the proximal end and the distal end, the sleeve further defining an internal volume communicating with a region exterior to the sleeve through at least two openings between two adjacent turns of the helical thread, a circumferential structural support connected to two proximal-most adjacent turns of the helical thread; and
a tip structure engageable with the sleeve, the tip structure defining an aperture sized to accept a suture; and
an anchor driver comprising:
an outer shaft configured to engage one or more components of the sleeve extending along an entire length of the interior volume of the sleeve between the at least two openings;
an intermediate shaft extending through the outer shaft, the intermediate shaft releasably attachable to the tip structure; and
a handle assembly comprising:
a handle grip for holding the anchor driver; and
a travel limiter comprising:
a threaded shaft;
an outer housing configured to spin freely about the threaded shaft upon a change in a holding force exerted on the threaded shaft; and
a ring for distributing an axial force applied to the travel limiter.
2 . The tissue repair system of claim 1 , wherein the sleeve further comprises a circumferential structural support connected to two distal-most adjacent turns of the helical thread.
3 . The tissue repair system of claim 1 , wherein the sleeve further comprises a circumferential structural support connected to two adjacent turns of the helical thread in an area distal to the at least two openings.
4 . The tissue repair system of claim 1 , wherein the handle assembly defines one or more slots for placing and/or maintaining tension on the suture during installation of the anchor into bone.
5 . The tissue repair system of claim 1 , wherein the handle assembly defines a pounding surface for pounding the tip structure into bone.
6 . The tissue repair system of claim 1 , wherein the handle assembly further comprises a sleeve advancement member operatively coupled to the outer shaft, and wherein rotation of the sleeve advancement member advances the sleeve into engagement with the tip structure.
7 . A method of tissue repair comprising:
driving a tip structure of a tissue repair system into a bone hole, the tissue repair system comprising:
an anchor comprising:
a sleeve having a proximal end and a distal end, a helical thread extending between the proximal end and the distal end, the sleeve further defining an internal volume communicating with a region exterior to the sleeve through at least two openings between two adjacent turns of the helical thread, a circumferential structural support connected to two proximal-most adjacent turns of the helical thread; and
the tip structure engageable with the sleeve, the tip structure defining an aperture sized to accept a suture; and
an anchor driver comprising:
an outer shaft configured to engage one or more components of the sleeve extending along an entire length of the interior volume of the sleeve between the at least two openings;
an intermediate shaft extending through the outer shaft, the intermediate shaft releasably attachable to the tip structure;
a handle assembly comprising a handle grip for holding the anchor driver; and
a travel limiter comprising:
a threaded shaft;
an outer housing configured to spin freely about the threaded shaft upon a change in a holding force exerted on the threaded shaft; and
a ring for distributing an axial force applied to the travel limiter; and
using the anchor driver, advancing the sleeve into the bone hole and into engagement with the tip structure.
8 . The method of claim 7 , further comprising releasing the tip structure from the intermediate shaft.
9 . The method of claim 7 , wherein the advancing the sleeve into the bone hole further comprises axially sliding the sleeve along a longitudinal axis of the intermediate shaft.
10 . The method of claim 7 , wherein the handle assembly further comprises a sleeve advancement member operatively coupled to the outer shaft, and wherein rotation of the sleeve advancement member causes the advancing of the sleeve into the bone hole.