Ligament reconstruction fixation system

Patent metadata

Field	Value
Publication number	US-9629706-B2
Application number	US-201314409111-A
Country	US
Kind code	B2
Filing date	Jun 26, 2013
Priority date	Jun 27, 2012
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

The present disclosure relates to an assembly for fixing a ligament in bone. The assembly includes a suspension member and an implant having a mechanism for fixedly receiving the suspension member and at least partially suspending the suspension member and the received bone graft within the implant, allowing for bony in-growth. A method of fixing a ligament in bone is also disclosed.

First claim

What is claimed is:

1. An assembly for fixing a ligament in bone, the assembly comprising:
a suspension member comprising a length of flexible material, the suspension member having a first end for receiving a bone graft, the first end of the suspension member defining a loop; and
an implant having a mechanism for fixedly receiving a second end of the suspension member;
wherein the implant at least partially suspends the suspension member within the implant, allowing for bony in-growth;
wherein the implant comprises at least one oxen helical coil screw thread having a cannulation defining an internal volume extending a length of the implant, the cannulation communicating with a region exterior to the at least one open helical coil screw thread through a spacing between turns of the at least one open helical coil screw thread; and wherein the second end of the suspension member comprises at least two hook portions and the mechanism comprises a receiver for fixedly receiving the at least two hook portions in the implant.

2. The assembly of claim 1 , further comprising a guide pin having an attachment site for the suspension member and Wherein the guide pin is threaded through the implant.

3. The assembly of claim 1 , wherein the implant comprises a bioabsorbable material.

4. The assembly of claim 1 , wherein a size of the implant is proportional to a graft size and a size of a pilot hole drilled in bone such that implant fixation and graft to socket contact is maximized.

5. The assembly of claim 1 , wherein the implant comprises one of a screw implant and a ribbed plug implant.

6. The assembly of claim 1 , wherein the second end of the suspension member comprises at least two J-lock members and the implant comprises a receiver having J-lock retainer groves for locking the at least two J-lock members in the implant.

7. The assembly of claim 1 , wherein the second end of the suspension member comprises at least two snap fit tabs and the implant comprises a receiver having snap fit groves for seeming the at least two snap fit tabs in the implant.

8. A kit for ligament reconstruction comprising:
a suspension member comprising a length of flexible material, the suspension member having a first end for securing a bone graft, the first end of the suspension member defining a loop;
an implant having a mechanism for fixedly receiving a second end of the suspension member and suspending the suspension member and received bone graft within the implant, the implant allowing for bony in-growth; and
an insertion device configured to assist with implanting the implant into a body;
wherein the implant comprises at least one open helical coil screw thread having a cannulation defining an internal volume extending a length of the implant, the cannulation communicating with a region exterior to the at least one open helical coil screw thread through a spacing between turns of the at least one open helical coil screw thread; and wherein the second end of the suspension member comprises at least two hook portions and the mechanism comprises a receiver for fixedly receiving the at least two hook portions in the implant.

Assignees

• Smith & Nephew Inc
• Shino Konsei

Inventors

• Shino Konsei
• Santangelo Stephen
• Wyman Jeffrey

Classifications

• A61B2017/0464

  for soft tissue · CPC title

• A61F2002/0841

  Longitudinal channel for insertion tool running through the whole tendon anchor, e.g. for accommodating bone drill, guidewire · CPC title

• A61F2002/0858

  Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges · CPC title

• A61F2002/0882

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

• A61F2002/087

  Anchor integrated into tendons, e.g. bone blocks, integrated rings · CPC title