Fenestrated locking suture anchor assembly
AssigneeSmith & Nephew, Inc.
InventorsTatsuya Arai, Matthew Edwin Koski, Mark Edwin Housman, Richard M. Lunn
Life of this patent
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Abstract
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.
Claims30
An anchor comprising:
- a sleeve comprising:
- at least one open helical coil having a proximal end and a distal end wherein the at least one open helical coil defines an internal volume communicating with a region exterior to the at least one open helical coil through a spacing between turns of the at least one open helical coil, and;
- at least one rib disposed within the internal volume, connected to at least two turns of the at least one open helical coil, wherein the at least one rib is engageable with a grooved shaft of an anchor driver;
- a tip structure engageable with the sleeve comprising:
- a body defining an internal cavity comprising:
- a distal region defining an aperture sized to accept a suture, wherein the aperture is connected to the longitudinal internal cavity, and;
- a proximal region sized to engage the distal end of the sleeve;
- and
- a suture capture member positioned within the internal cavity and advanceable distally through the internal cavity into the aperture to capture the suture in a locked position.
An anchor driver comprising:
- a grooved outer shaft engageable with a sleeve;
- an inner shaft engageable with a suture capture member of a tip structure;
- and
- a handle assembly comprising:
- a suture capture advancement member operatively coupled to the inner shaft, wherein the suture capture advancement member advances the suture capture member into a distal, suture-locked position, and;
- a sleeve advancement member operatively coupled to the grooved outer shaft wherein the sleeve advancement member advances the sleeve into engagement with the tip structure.
A system for tissue repair comprising:
- an anchor comprising:
- a sleeve comprising:
- at least one open helical coil having a proximal end and a distal end wherein the at least one open helical coil defines an internal volume communicating with a region exterior to the at least one open helical coil through a spacing between turns of the at least one open helical coil, and;
- at least one rib disposed within the internal volume, connected to at least two turns of the at least one open helical coil, wherein the at least one rib is engageable with a grooved shaft of an anchor driver;
- a tip structure engageable with the sleeve comprising:
- a body defining an internal cavity comprising:
- a distal region defining an aperture sized to accept a suture, wherein the aperture is connected to the longitudinal internal cavity, and;
- a proximal region sized to engage the distal end of the sleeve, and;
- a suture capture member positioned within the internal cavity and advanceable distally through the internal cavity into the aperture to capture the suture in a locked position;
- and
- an anchor driver comprising:
- a grooved outer shaft engageable with the at least one rib of the sleeve;
- an inner shaft engageable with the suture capture member of the tip structure, and;
- a handle assembly comprising:
- a suture capture advancement member operatively coupled to the inner shaft, wherein the suture capture advancement member advances the suture capture member into a distal, suture-locked position, and;
- a sleeve advancement member operatively coupled to the grooved outer shaft wherein the sleeve advancement member advances the sleeve into engagement with the tip structure.
A method of tissue repair comprising:
- providing an anchor system comprising:
- a sleeve comprising:
- at least one open helical coil having a proximal end and a distal end wherein the at least one open helical coil defines an internal volume communicating with a region exterior to the at least one open helical coil through a spacing between turns of the at least one open helical coil, and;
- at least one rib disposed within the internal volume, connected to at least two turns of the at least one open helical coil, wherein the at least one rib is engageable with a grooved outer shaft of an anchor driver, and;
- a tip structure engageable with the sleeve comprising:
- a body defining an internal cavity comprising:
- a distal region defining an aperture sized to accept a suture, wherein the aperture is connected to the internal cavity, and;
- a proximal region sized to engage the distal end of the sleeve, and;
- a suture capture member positioned within the internal cavity and advanceable distally through the internal cavity into the aperture to capture the suture in a locked position;
- driving the tip structure into a bone using the anchor driver;
- advancing, using the anchor driver, the suture capture member into a distal, suture-locked position to capture the suture in a locked position;
- and
- advancing the sleeve into the bone and into engagement with the tip structure using the anchor driver.
Dependencies are inferred from the claim text.