Helicoil interference fixation system for attaching a graft ligament to a bone
AssigneeSmith & Nephew, Inc.
InventorsDennis McDevitt, Vincent Novak
Life of this patent
Estimating the term…
Abstract
A helicoil interference fixation system comprising: a helicoil comprising a helical body comprising a plurality of turns separated by spaces therebetween, the helical body terminating in a proximal end and a distal end, and at least one internal strut extending between at least two turns of the helical body; and an inserter for turning the helicoil, the inserter comprising at least one groove for receiving the at least one strut; the helicoil being mounted on the inserter such that the at least one strut of the helicoil is mounted in the at least one groove of the inserter, such that rotation of the inserter causes rotation of the helicoil.
Claims21
1-32. canceled
An anchor assembly comprising:
- a driver comprising:
- a cannulated shaft including a proximal end, a distal end, and a longitudinal axis extending therebetween;
- and
- a handle coupled to the shaft and aligned with the longitudinal axis, a diameter of the handle larger than a diameter of the shaft;
- and an anchor engageable with the driver, the anchor comprising:
- a cannulated body including a helical thread extending between a distal end and a proximal end of the body, the body having at least one opening between turns of the thread;
- a drive surface at least partially defined by an interior surface of the body, the drive surface extending a fixed length from the proximal end to the distal end of the anchor body;
- wherein the shaft of the driver receives an entire length of the drive surface of the anchor when the anchor is engaged with the driver.
An anchor assembly comprising:
- a driver comprising:
- a cannulated shaft including a proximal end, a distal end, and a longitudinal axis extending therebetween;
- and
- a handle coupled to the shaft and aligned with the longitudinal axis, a diameter of the handle larger than a diameter of the shaft;
- and
- an anchor engageable with the driver, the anchor comprising:
- a cannulated body including a helical thread extending between a distal end and a proximal end of the body, the body having at least one opening between turns of the thread;
- and
- a drive surface at least partially defined by an interior surface of the body, the drive surface extending a fixed length from the proximal end to the distal end of the anchor body, the shaft of the driver receiving an entire length of the drive surface of the anchor when the anchor is engaged with the driver;
- and a tapered tip.
An anchor assembly comprising:
- a driver comprising:
- a cannulated shaft including a proximal end, a distal end, and a longitudinal axis extending therebetween, the distal end of the driver including a tip;
- and
- a handle coupled to the shaft and aligned with the longitudinal axis, a diameter of the handle larger than a diameter of the shaft;
- and an anchor engageable with the driver, the anchor comprising:
- a cannulated body including a helical thread extending between a distal end and a proximal end of the body, the body defining at least one opening between turns of the thread;
- a drive surface at least partially defined by an interior surface of the body, the drive surface extending a fixed length from the proximal end to the distal end of the anchor body;
- wherein the shaft of the driver receives an entire length of the drive surface of the anchor when the anchor is engaged with the driver;
- and
- wherein, when the anchor is engaged with the driver, the tip is located distal to the anchor.
Dependencies are inferred from the claim text.