System and method for attaching soft tissue to bone

Patent metadata

Field	Value
Publication number	US-11083448-B2
Application number	US-201715612722-A
Country	US
Kind code	B2
Filing date	Jun 2, 2017
Priority date	Jan 30, 2009
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

Disclosed herein are methods and devices for securing soft tissue to a rigid material such as bone. A bone anchor is described that comprises an anchor body with expandable tines and a spreader that expands the tines into bone. Also disclosed is a bone anchor that comprises a base and a top such that suture material may be attached to apertures in the anchor top or else compressed between surfaces on the base and top to secure the suture to the anchor. Also described is an inserter that can be used to insert the bone anchor into bone and move the spreader relative to the anchor body attach suture material. Also described is an inserter that can be used to insert the bone anchor into bone and move the anchor top relative to the anchor body or anchor base to attach to or clamp suture material there between. Methods are described that allow use of single bone anchor to secure tissue to bone or also to use more than one bone anchor to provide multiple lengths of suture material to compress a large area of soft tissue against bone.

First claim

What is claimed is:

1. A method of attaching tissue to bone, the method comprising:
inserting a bone anchor comprising an anchor body and a spreader in a pre-formed bone hole using an insertion tool, the insertion tool coupled to the spreader, and wherein a suture extends through at least one spreader axial bore positioned through a most distal surface thereof, wherein the most distal surface faces a distal direction, and forms a loop on a most distal end of the spreader;
proximally advancing the spreader at least partially into an axial bore of the anchor body using the insertion tool, causing the anchor body to expand against bone;
disengaging the insertion tool from the bone anchor;
passing the suture which is secured to the spreader through the tissue; and
fixedly securing the suture on top of the tissue.

2. The method of claim 1 , wherein the bone anchor is fully inserted and secured to the bone before the insertion tool is disengaged from the bone anchor.

Assignees

• Conmed Corp

Inventors

• Heaven Malcolm
• Sirivong Mikxay
• Pretti Rudy
• Ko Michael
• Greelis John P

Classifications

• A61B17/0401 Primary

  Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811) · CPC title

• A61B2017/0409

  Instruments for applying suture anchors · CPC title

• A61B2017/0424

  the separate member staying in the anchor after placement · CPC title