Apparatus and method for use in positioning an anchor

• US 6,428,562 B2
• Filed: 01/22/2001
• Issued: 08/06/2002
• Est. Priority Date: 11/15/1996
• Status: Expired due to Term

• Current Assignee: Bonutti Skeletal Innovations LLC (Acacia Research Corporation)
• Original Assignee: Peter M. Bonutti
• Inventors: Bonutti, Peter M.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US09/766,728
• Publication Number:
  US 20010002440A1
• Time in Patent Office: 561 Days
• Field of Search: 606/232, 606/104
• US Class Current: 606/232
• 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 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1796 for holes for sutures or flexible wires
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00455 Orientation indicators, e.g. recess on the handle
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/062 penetration depth

Abstract

An apparatus for use in positioning an anchor includes a tubular outer member and an inner or pusher member. During use of the apparatus, a slot facilitates visualization of the position of the anchor relative to body. An anchor retainer may be provided at one end of the tubular outer member to grip the anchor and hold the anchor in place during assembly. The anchor retainer also holds the anchor during movement of the apparatus from an assembly location to an operating room or other location where the apparatus is to be used. Indicia may be provided on the inner member to indicate the position of the anchor relative to body tissue. The tubular outer member may be utilized to guide a drill during formation of an opening in body tissue and may be subsequently utilized to guide movement of an anchor into the opening in the body tissue.

Claims

1. A method of positioning an anchor in body tissue, said method comprising the steps of positioning an inserter in an opening in the anchor with a pointed end portion of the inserter extending from the anchor, piercing body tissue with the pointed end portion of the inserter, moving the anchor and inserter into the body tissue with the pointed end portion of the inserter extending from the anchor, disengaging the inserter from the anchor with the anchor disposed in the body tissue, and changing the orientation of the anchor relative to the body tissue, said step of changing the orientation of the anchor relative to the body tissue includes displacing body tissue under the influence of force applied against the body tissue by the anchor and moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue by the anchor.

2. A method as set forth in claim 1 wherein said step of displacing body tissue under the influence of force applied against the body tissue by the anchor is at least partially performed with a portion of the inserter enclosed by the anchor.

3. A method as set forth in claim 1 wherein said step of displacing body tissue under the influence of force applied against the body tissue by the anchor includes transmitting force between the inserter and the anchor.

4. A method as set forth in claim 1 wherein said step of moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue by the anchor is at least partially performed with the inserter disposed in engagement with the anchor.

5. A method as set forth in claim 1 wherein said step of moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue by the anchor includes pivoting the anchor about a location where the anchor engages the inserter.

6. A method as set forth in claim 1 wherein said step of moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue by the anchor includes applying torque to the anchor to rotate the anchor while the anchor moves through the body tissue.

7. A method as set forth in claim 1 wherein said step of piercing body tissue with the pointed end portion of the inserter includes piercing an outer surface of a bone with the pointed end portion of the inserter.

8. A method as set forth in claim 1 wherein said step of moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue includes displacing bone tissue while the anchor is disposed in a bone in a patient'"'"'s body.

9. A method as set forth in claim 1 wherein said step of moving the anchor through the body tissue as the body tissue is displaced under the influence of force applied against the body tissue by the anchor includes tensioning a suture connected with the anchor.

10. A method as set forth in claim 1 wherein said step of changing the orientation of the anchor relative to the body tissue includes tensioning a suture connected with the anchor and pivoting the anchor about a location where the anchor engages the inserter under the influence of force transmitted through the suture to the anchor.

11. A method of positioning an anchor in body tissue, said method comprising the steps of positioning an inserter in an opening in the anchor with a pointed end portion of the inserter extending from the anchor, piercing bone with the pointed end portion of the inserter, moving the anchor and inserter into the bone with the pointed end portion of the inserter extending from the anchor, disengaging the inserter from the anchor with the anchor disposed in the bone, and changing the orientation of the anchor relative to the bone, said step of changing the orientation of the anchor relative to the bone includes displacing bone tissue under the influence of force applied against the bone tissue by the anchor and moving the anchor through the bone tissue as the bone tissue is displaced under the influence of force applied against the bone tissue by the anchor.

12. A method as set forth in claim 11 wherein said step of displacing bone under the influence of force applied against the bone by the anchor is at least partially performed with a portion of the inserter enclosed by the anchor.

13. A method as set forth in claim 11 wherein said step of displacing bone under the influence of force applied against the bone by the anchor includes transmitting force between the inserter and the anchor.

14. A method as set forth in claim 11 wherein said step of moving the anchor through the bone as the bone is displaced under the influence of force applied against the bone by the anchor is at least partially performed with the inserter disposed in engagement with the anchor.

15. A method as set forth in claim 11 wherein said step of moving the anchor through the bone as the bone is displaced under the influence of force applied against the bone by the anchor includes pivoting the anchor about a location where the anchor engages the inserter.

16. A method as set forth in claim 11 wherein said step of moving the anchor through the bone as the bone is displaced under the influence of force applied against the bone by the anchor includes applying torque to the anchor to rotate the anchor while the anchor moves through the bone.

17. A method as set forth in claim 11 wherein said step of piercing bone with the pointed end portion of the inserter includes piercing an outer surface of the bone with the pointed end portion of the inserter.