Double-loop endobutton, ovoid tunnel guide, and method of ACL re-construction using the ovoid tunnel guide and the double-loop endobutton

Patent metadata

Field	Value
Publication number	US-9539085-B2
Application number	US-201414331558-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Oct 3, 2011
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A graft attachment apparatus including at least two separately formed filament loops, and a fixation member comprising at least one opening configured to receive the at least two separately formed filament loops. The at least two separately formed filament loops are continuous loops.

First claim

What is claimed is:

1. A graft attachment apparatus comprising:
at least two separately formed filament loops wherein each of the two separately formed loops are not coupled to one another, each of the at least two separately formed filament loops being continuous loops; and
a fixation member including:
a body having a first surface and a second surface opposite the first surface, the first and second surfaces separated by a width of the body, the width of the body remaining constant along a longitudinal axis of the body;
at least one loop opening extending through the body transverse to the longitudinal axis, the at least one loop opening being configured to receive the at least two separately formed filament loops; and
a lead filament opening and a trailing filament opening extending through the body transverse to the longitudinal axis, the lead filament opening and the trailing filament opening formed on opposite sides of the fixation member with the at least one loop opening formed between the lead filament opening and the trailing filament opening;

wherein the at least two separately formed filament loops are coupled to the fixation member such that each of the at least two separately formed filament loops are received within the same one of the at least one loop opening;
and
wherein the at least two separately formed filament loops are arranged so that at least one graft is attached or connected to a respective one of the at least two separately formed filament loops.

2. The apparatus of claim 1 , wherein the at least two separately formed filament loops comprises at least two separately formed suture loops.

3. The apparatus of claim 1 , wherein the fixation device comprises one of a biocompatible or a bio-absorbable material.

4. The apparatus of claim 1 , wherein the at least two separately formed filament loops are configured so that each are a different length from each other.

5. The apparatus of claim 1 , wherein the fixation member is one of elongate and oblong in shape.

6. The apparatus of claim 1 , wherein the apparatus is configured so as to be received in a bone having at least a first and a second tunnel formed therein and conjoined with each other; and
wherein the at least two separately formed filament loops and the fixation device are configured so that one filament loop and its respective graft can be manipulated so that it is disposed in the first tunnel and so that another filament loop can be manipulated so as to be disposed in the second tunnel.

7. The apparatus of claim 6 , wherein the at least two separately formed filament loops are configured so that each are a different length from each other.

8. The apparatus of claim 6 , wherein a line is coupled to the fixation member such that when the line is pulled it draws the fixation member through at least one of the tunnels.

9. The apparatus of claim 6 , wherein the at least two separately formed filament loops and the respective grafts are configured and arranged so as to be movable within the first and second tunnels so that the at least two separately formed filament loops and the respective grafts can be arranged so as to be in a desired alignment.

10. The apparatus of claim 9 , wherein the apparatus is useable in an anterior cruciate ligament construction/re-construction technique, one of the at least two separately formed filament loops and the respective graft are arranged to form an anteromedial (AM) fiber bundle, another of the at least two separately formed filament loops and the respective graft are arranged to form a posterolateral (PL) fiber bundle, and the combination of one of the at least two filament loops and the respective graft are manipulated so that the combination is disposed in the first tunnel and the combination of the another filament loop and respective graft are be manipulated so as to be disposed in the second tunnel.

11. The apparatus of claim 1 , wherein the fixation member is at least one dimension that is larger than an opening in the bone formed by the first and second tunnels.

12. The apparatus of claim 1 , wherein the at least two separately formed filament loops are configured and arranged so at least one of the separately formed loops is such that at least two grafts are separately coupled to the at least one of the separately formed loops.

Assignees

• Smith & Nephew Inc

Inventors

• Smith Graham
• Georgoulis Anastasios Dimitrios

Classifications

• A61B17/1764

  for the knee · CPC title

• A61F2002/0852

  Fixation of a loop or U-turn, e.g. eyelets, anchor having multiple holes · CPC title

• A61B2017/0404

  Buttons · CPC title

• A61F2002/0882

  Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone · CPC title

• A61B17/1714 Primary

  for applying tendons or ligaments (implements for applying tendons or ligaments A61F2/0805) · CPC title