Apparatus and method for use in positioning an anchor

• US 7,004,959 B2
• Filed: 07/30/2002
• Issued: 02/28/2006
• Est. Priority Date: 11/15/1996
• Status: Expired due to Fees

• Current Assignee: Bonutti Skeletal Innovations LLC (Acacia Research Corporation)
• Original Assignee: Bonutti IP LLC
• Inventors: Bonutti, Peter M.
• Primary Examiner(s): HAYES, MICHAEL J
• Application Number:
  US10/208,510
• Publication Number:
  US 20020193830A1
• Time in Patent Office: 1,309 Days
• Field of Search: 606/232
• 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
• 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 tissue. 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

providing an anchor farmed of a hydrophilic material,

positioning an inserter in an opening in the anchor formed of hydrophilic material with a pointed end portion of the inserter extending from the anchor formed of hydrophilic material,

piercing body tissue with the pointed end portion of the inserter,

disengaging the anchor formed of hydrophilic material from the inserter with the anchor formed of hydrophilic material disposed in the body tissue, and

exposing the anchor formed of hydrophilic material to body fluids.

2. A method as set forth in claim 1 further including the step of changing the orientation of the anchor formed of hydrophilic material relative to the body tissue, said step of changing the orientation of the anchor formed of hydrophilic material includes displacing body tissue under the influence of force applied against the body tissue by the anchor formed of hydrophilic material.

3. A method as set forth in claim 2 wherein the step of changing the orientation of the anchor formed of hydrophilic material relative to the body tissue is at least partially performed with a portion of the inserter enclosed by the anchor formed of hydrophilic material.

4. A method as set forth in claim 2 wherein said step of displacing body tissue under the influence of force applied against the body tissue by the anchor formed of hydrophilic material includes transmitting farce between the inserter and the anchor formed of hydrophilic material.

5. A method as set forth in claim 1 further including the step of applying torque to the anchor formed of hydrophilic material to rotate the anchor formed of hydrophilic material relative to the body tissue and change the orientation of the anchor relative to the body tissue.

6. A method as set forth in claim 1 wherein said step of positioning an inserter in an opening in the anchor formed of hydrophilic material and said step of disengaging the anchor formed of hydrophilic mater from the inserter are performed with a suture connected with the anchor formed of hydrophilic material.

7. A method as set forth in claim 1 further including the step of tensioning a suture connected with the anchor formed of hydrophilic material.

8. A method ass set forth in claim 1 wherein said step of disengaging the anchor formed of hydrophilic material from the inserter includes applying force against a trailing end portion of the anchor formed of hydrophilic material to move the anchor formed of hydrophilic material along the pointed end portion of the inserter.

9. A method as set forth in claim 1 wherein said step of piercing the body tissue with the pointed end portion of the inserter includes piercing an imperforate surface area on the body tissue with the pointed end portion of the inserter.

10. A method as set forth in claim 1 further including the step of applying force against a trailing end portion of the anchor formed of hydrophilic material with the inserter to move a leading end portion of the anchor formed of hydrophilic through an opening formed in the body tissue by piercing the body tissue with the pointed end portion of the inserter.

11. A method of positioning an anchor in body tissue, said method comprising the steps of

providing an anchor formed of hydrophilic material and having an opening extending through the anchor formed of hydrophilic material,

inserting a member having pointed end portion through the opening extending through the anchor formed of hydrophilic material to a position in which the pointed end portion of the member is at least partially disposed ahead of a leading end portion of the anchor formed of hydrophilic material,

piercing body tissue with the pointed end portion of the member,

applying a force against a trialing end portion of the author formed of hydrophilic material to move the leading end portion of the anchor formed of hydrophilic material through an opening which is at least partially formed in the body tissue by piercing the body tissue with the pointed end portion of the member,

moving the trailing end portion of the anchor formed of hydrophilic material through the opening which is at least partially formed in the body tissue with the pointed end portion of the member by applying force against the trailing end portion of the anchor formed of hydrophilic material,

disengaging the member from the anchor formed of hydrophilic material,

exposing the anchor formed of hydrophilic material to body fluid, and

expanding the anchor formed of hydrophilic material while the anchor formed of hydrophilic material is disposed in the body tissue.

12. A method as set forth in claim 11 further including the step of changing the orientation of the anchor formed of hydrophilic material relative to the body tissue while applying force against the trailing end portion of the anchor formed of hydrophilic material.

13. A method as set forth in claim 11 wherein said step of moving the trailing end portion of the anchor formed of hydrophilic material through the opening in the body tissue is performed with a suture extending into the opening through the anchor formed of hydrophilic material.