Absorbable bone anchor
AssigneeDePuy Mitek, LLC
InventorsLisa M. Donnelly, Edwin C. Bartlett, Karl S. Reese, Steven D. Muller, Paul J. Ares
Life of this patent
Estimating the term…
Abstract
A bone anchor is provided that can toggle in two planes for secure anchorage within a bone cavity. The bone anchor includes an oblique suture channel configured such that a suture strand extending through the bone anchor can be tensioned to toggle the bone anchor inside the bone cavity. The suture strand can be located on the same side of the anchor body to maximize the area of the anchor surface which engages bone, resulting in increased engagement into bone and resistance to tensile forces.
Claims14
A system for anchoring tissue to bone, comprising:
- a bone anchor comprising an elongate body having
- an open tapered leading end with a suture engaging notch formed therein,
- a trailing end with a flared sidewall configured to engage bone, and
- a suture channel extending through opposed sidewalls of the elongate body at a location between the leading and trailing ends, the suture channel;
- and
- a loop of suture thread extending through the suture channel;
- wherein the suture channel is angled such that, when the bone anchor is disposed within a bone hole and tension is applied to the loop of suture thread, the bone anchor will toggle in two planes.
A bone anchor for anchoring tissue to bone, comprising:
- an elongate body having a longitudinal axis extending between a leading end and a trailing end, first and second opposed substantially planar surfaces that extend between the leading and trailing ends, and third and fourth sidewalls that extend between the leading and trailing ends and the first and second opposed substantially planar surfaces, wherein a width between the third and fourth sidewalls increases from the leading end to the trailing end;
- at least one suture channel extending through the first and second opposed substantially planar surfaces of the elongate body for passage of a suture strand therethrough;
- and
- an open suture engaging notch formed in the leading end.
A method for anchoring tissue to bone, comprising:
- forming a bone cavity within a bony structure;
- threading a needle through a free end of tissue such that a first end of the suture loop attached to the needle is positioned on a first side of the tissue, and a second end of the suture loop attached to a suture anchor is positioned on a second side of the tissue;
- inserting the bone anchor with the suture loop attached thereto into the bone cavity, the suture loop extending through a suture channel formed in the bone anchor;
- applying tension to the suture loop to toggle the bone anchor in two planes within the bone cavity, thereby causing a flared portion of the bone anchor to extend into and engage the bone cavity;
- and
- tying the suture loop to bring the free end of the tissue proximate to the bony structure.
Dependencies are inferred from the claim text.