Biceps repair device

Patent metadata

Field	Value
Publication number	US-9693856-B2
Application number	US-201514693276-A
Country	US
Kind code	B2
Filing date	Apr 22, 2015
Priority date	Apr 22, 2015
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

Methods and devices are provided for anchoring a ligament or tendon to bone. In general, various inserter tools are provided for simultaneously delivering an expandable sheath and an expander into bone. With both components of the implant mounted on the same tool, the sheath and a ligament can be advanced into a bone hole and the expander, which trails behind the sheath during delivery of the sheath, can be advanced into the sheath to expand the sheath and anchor the sheath and ligament within the bone hole.

First claim

What is claimed is:

1. A bone anchor and delivery system, comprising:
an anchor assembly including
an expandable sheath having opposed slots formed therein and an inner lumen extending at least partially therethrough, and
an expander configured to be received within the inner lumen of the sheath to cause the sheath to expand outward, the expander having an inner lumen extending therethrough; and

a delivery tool including
an outer shaft having first and second prongs extending distally from a distal end thereof and configured to extend along opposed slots formed in the sheath, and
an inner shaft extending through and mated to the outer shaft such that the inner shaft is prevented from sliding axially relative to the outer shaft;

wherein, when the prongs of the outer shaft are positioned to extend along the opposed slots in the sheath and the expander is disposed within the outer shaft proximal of the sheath, the inner shaft extends through the inner lumen in the expander and a distal end of the inner shaft abuts against a distal inner surface of the sheath such that the inner shaft can apply a force to the sheath to advance the sheath into a bone hole.

2. The system of claim 1 , wherein the inner shaft is freely rotatable relative to the outer shaft.

3. The system of claim 1 , wherein the inner shaft includes a drive tip extending distally therefrom, the drive tip extending into the inner lumen of the expander and configured to apply a rotational force to the expander to drive the expander into the expandable sheath.

4. The system of claim 1 , wherein the first and second prongs comprise elongate wires, each elongate wire having a proximal end that is fixedly disposed within a bore formed in the distal end of the outer shaft.

5. The system of claim 1 , wherein the first and second prongs comprise elongate members formed from a super elastic material.

6. The system of claim 1 , wherein the distal end of the outer shaft includes viewing windows formed in opposed sidewalls thereof.

7. A bone anchor and delivery system, comprising:
an anchor assembly including
an expandable sheath having opposed slots formed therein and an inner lumen extending at least partially therethrough, and
an expander configured to be received within the inner lumen of the sheath to cause the sheath to expand outward, the expander having an inner lumen extending therethrough; and

a delivery tool including
an outer shaft having proximal and distal ends and an inner lumen extending at least partially therethrough, the distal end having first and second prongs extending distally therefrom; and
an inner shaft extending through the inner lumen of the outer shaft and being non-slidable relative to the outer shaft, the inner shaft having a distal-most end terminating at a location distal to the distal end of the outer shaft and proximal to a distal-most end of the first and second prongs.

8. The system of claim 7 , wherein the inner shaft is freely rotatable relative to the outer shaft.

9. The system of claim 7 , wherein a distal portion of the inner shaft is in the form of a drive tip that extends into the inner lumen in the expander to apply a rotational force to the expander.

10. The system of claim 7 , wherein the first and second prongs comprise elongate wires, each elongate wire having a proximal end that is fixedly disposed within a bore formed in the distal end of the outer shaft.

11. The system of claim 7 , wherein the first and second prongs comprise elongate members formed from a super elastic material.

12. The system of claim 7 , wherein the distal end of the outer shaft includes viewing windows formed in opposed sidewalls thereof.

Assignees

• Depuy Mitek Llc
• Depuy Synthes Products Llc

Inventors

• Sengun Mehmet Z
• Cleveland Benjamin
• Diduch David R
• Getelman Mark H
• Mahoney Jr James J
• Marks Jacob A
• Miller Gerome
• Ravenscroft Matthew J
• Tang Howard C
• Whittaker Gregory R

Classifications

• A61F2002/0841

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

• A61B2017/0403

  Dowels · CPC title

• A61B17/0401

  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

• A61F2002/0858

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

• A61B17/0642 Primary

  for bones, e.g. for osteosynthesis or connecting tendon to bone · CPC title