Biceps Tenodesis Delivery Tools

• US 20160113644A1
• Filed: 01/30/2015
• Published: 04/28/2016
• Est. Priority Date: 10/23/2014
• Status: Active Grant

• Current Assignee: Medos International Sarl (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Diduch, David R., Marks, Jacob A., Miller, Gerome, Sengun, Mehmet Z., Tang, Howard C., Getelman, Mark H., Ravenscroft, Matthew J.
• Granted Patent: US 10,076,374 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61F 2/08 Muscles; Tendons; Ligaments sutures A61B17/04
• 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 2002/0882 Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone
• 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 particular, various delivery tools, including a variety of sheath inserter tools, are provided. The tools can be used to position a tendon within a prepared bone hole, and to deliver a sheath into the bone hole.

Claims

1. An anchor inserter tool, comprising:

a first elongate body having first and second prongs extending distally from a distal end thereof and configured to extend along opposed slots formed in a sheath of an anchor assembly;

a second elongate body slidably disposed relative to the first elongate body; and

a handle assembly coupled to a proximal end of the first and second elongate bodies, the handle assembly including a locking mechanism that is movable between a locked position, in which the locking mechanism prevents movement of the first and second elongate bodies relative to one another, and an unlocked position in which the first and second elongate bodies are axially slidable relative to one another.

2. The anchor inserter tool of claim 1, wherein the first elongate body comprises an inner shaft and the second elongate body comprises an outer shaft disposed around the inner shaft.

3. The anchor inserter tool of claim 1, wherein the second elongate body comprises an inner shaft and the first elongate body comprises an outer shaft disposed around the inner shaft.

4. The anchor inserter tool of claim 1, wherein the first elongate body includes a lumen configured to receive a proximal end of a guidewire coupled to a sheath of an anchor assembly.

5. The anchor inserter tool of claim 4, wherein the handle assembly includes a guidewire lock configured to selectively engage and prevent movement of a guidewire disposed within the handle.

6. The anchor inserter tool of claim 1, wherein the handle assembly includes an actuator coupled to the first elongate body and configured to move the first elongate body axially with respect to the second elongate body.

7. The anchor inserter tool of claim 6, wherein the actuator is rotatable relative to the handle assembly such that rotation of the actuator is effective to cause axial translation of the inner and outer shafts relative to one another.

8. The anchor inserter tool of claim 6, wherein the actuator is pivotable relative to the handle assembly such that pivotal movement of the actuator is effective to cause axial translation of the inner and outer shafts relative to one another.

9. The anchor inserter tool of claim 6, wherein the actuator comprises at least one handle extending in a perpendicular direction from the first elongate body.

10. The anchor inserter tool of claim 6, wherein the actuator extends proximally from the proximal end of the first elongate body.

11. The anchor inserter tool of claim 6, wherein the actuator comprises at least one finger loop.

12. The anchor inserter tool of claim 1, wherein the handle assembly has a pistol-grip configuration with a stationary housing and a pivotable trigger.

13. The anchor inserter tool of claim 1, wherein the first elongate body comprises an inner shaft and the second elongate body comprises an outer shaft disposed around the inner shaft, and the handle assembly includes an actuator configured to move the inner shaft proximally with respect to the outer shaft to retract the first and second prongs of the inner shaft into the outer shaft.

14. A tendon anchoring system, comprising:

an outer shaft having an inner lumen extending therethrough and a sheath alignment protrusion formed on a distal end thereof;

an inner shaft disposed within the outer shaft and having first and second prongs formed on a distal end thereof, the prongs being movable between an extended position in which the prongs extend distally beyond the distal end of the outer shaft, and a retracted position in which the prongs are retracted into the distal end of the outer shaft, the prongs extending along opposed sides of the sheath alignment protrusion on the outer shaft;

a handle assembly coupled to a proximal end of each of the first and second shafts.

15. The tendon anchoring system of claim 14, wherein the sheath alignment feature has a generally conical shape.

16. The tendon anchoring system of claim 15, wherein the sheath alignment feature includes first and second opposed cut-outs formed therein and configured to receive the first and second prongs of the inner shaft.

17. The tendon anchoring system of claim 14, wherein the distal end of the outer shaft is closed with an elongate slot formed therein for receiving the first and second prongs therethrough.

18. A method for anchoring a tendon to bone, comprising:

manipulating an inserter tool to insert a sheath coupled to a distal end of the inserter tool through tissue, the sheath having a guidewire mated thereto and extending through the inserter tool;

positioning a tendon between a pair of prongs on a distal end of the inserter tool, and manipulating the inserter tool to advance the sheath, with the tendon between the prongs, into a bone hole, wherein a locking mechanism on a handle assembly of the inserter tool maintains the guidewire and the prongs in a locked position relative to one another;

moving the locking mechanism on the handle assembly to an unlocked position and manipulating the handle assembly to retract the prongs relative to the guidewire; and

removing the inserter tool such that the sheath with the guidewire mated thereto remains in the bone hole.

19. The method of claim 18, wherein the inserter tool includes first and second shafts, and wherein the prongs are formed on the first shaft, and manipulating the handle assembly to retract the prongs relative to the guidewire comprises moving the first shaft relative to the second shaft.

20. The method of claim 19, wherein the locking mechanism extends between a handle on the first shaft and a handle on the second shaft to block movement of the first and second shafts relative to one another when the locking mechanism is in a locked position.

21. The method of claim 19, wherein the first shaft includes an actuator coupled to a proximal end thereof, and wherein the locking mechanism prevents movement of the actuator when in a locked position, and the locking mechanism releases the actuator when it is moved to the unlocked position.