Biceps repair device

• US 9,693,856 B2
• Filed: 04/22/2015
• Issued: 07/04/2017
• Est. Priority Date: 04/22/2015
• Status: Active Grant

• Current Assignee: Medos International Sarl (Johnson & Johnson)
• Original Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Inventors: Whittaker, Gregory R., Cleveland, Benjamin, Getelman, Mark H., Mahoney, Jr., James J., Marks, Jacob A., Miller, Gerome, Ravenscroft, Matthew J., Tang, Howard C., Sengun, Mehmet Z., Diduch, David R.
• Primary Examiner(s): Coley, Zade
• Application Number:
  US14/693,276
• Publication Number:
  US 20160310260A1
• Time in Patent Office: 804 Days
• CPC Class Codes: A61B 17/0401 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 Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/0403 Dowels other bone dowels A61B17/68; dowels for connecting prosthetic parts A61F2002/30433
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0425 the anchor or the separate member comprising threads, e.g. a set screw in the anchor
• CPC Class Codes: A61F 2/0805 Implements for inserting tendons or ligaments
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0835 with deformation of anchor parts, e.g. expansion of dowel by set screw
• CPC Class Codes: A61F 2002/0841 Longitudinal channel for insertion tool running through the whole tendon anchor, e.g. for accommodating bone drill, guidewire
• CPC Class Codes: A61F 2002/0858 Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
• CPC Class Codes: A61F 2002/0888 Anchor in or on a blind hole or on the bone surface without formation of a tunnel

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.

Claims

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.