Devices and methods for creating wedge-shaped recesses

• US 10,376,368 B2
• Filed: 12/21/2016
• Issued: 08/13/2019
• Est. Priority Date: 05/26/2011
• Status: Active Grant

• Current Assignee: Cartiva, Inc. (Stryker Corporation)
• Original Assignee: Cartiva, Inc. (Stryker Corporation)
• Inventors: Walsh, Steven P., Tudor, Letitia, Corrao, Ernest N., Berky, Craig B., Bauer, Jonathan P., Hemingway, Jeremy, Axelrod, Michael
• Primary Examiner(s): Beccia, Christopher J
• Application Number:
  US15/386,756
• Publication Number:
  US 20170165074A1
• Time in Patent Office: 965 Days
• CPC Class Codes: A61B 17/1617 with mobile or detachable parts
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/30756 Cartilage endoprostheses A61F2/3603 takes precedence
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4618 of cartilage
• CPC Class Codes: A61F 2002/30075 swellable, e.g. when wetted
• CPC Class Codes: A61F 2002/3021 frustoconical
• CPC Class Codes: A61F 2002/30327 differing in diameter
• CPC Class Codes: A61F 2002/30759 Mosaicplasty, i.e. using a plurality of individual cartilage plugs for filling a substantial cartilage defect
• CPC Class Codes: A61F 2002/4627 with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4628 with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping

Abstract

According to some embodiments, a method of treating a joint of a patient comprises creating a recess in a bone located at or near a targeted joint, wherein the recess includes a generally wedge or truncated cone shape. In one embodiment, the recess in a bone comprises a surface opening along an outer surface of the bone and a bottom opening along the distal end of the recess, such that a diameter of the surface opening is generally smaller than a diameter of the bottom opening. The method additionally comprises providing a joint implant having a wedge or truncated cone shape, wherein a diameter of a top end of the joint implant is generally smaller than a diameter of a bottom end of the joint implant, inserting the joint implant within the recess.

Claims

1. A tool configured to make a wedge-shaped recess within a bone along or near a joint of a patient, comprising:

a main body comprising a proximal end and a distal end;

wherein the proximal end of the main body is configured to be selectively rotated;

a flange located along the distal end of the main body; and

at least one articulating cutter extending distally from the flange, said at least one articulating cutter configured to be selectively moved between a stowed position and a radially extended position;

wherein the at least one articulating cutter is configured to be angled relative to a longitudinal axis of the tool when in the radially extended position; and

wherein the at least one articulating cutter is configured to create a wedge-shaped recess within a bone when in the radially extended position, wherein a diameter of a bottom opening of the recess is larger than a diameter of a surface opening of the recess.

2. The tool of claim 1, wherein the at least one articulating cutter is coupled to the main body using a hinge or other pivot point.

3. The tool of claim 1, wherein the at least one articulating cutter is normally resiliently biased in the stowed position.

4. The tool of claim 1, wherein the tool is cannulated, allowing the tool to be placed over a guide pin in order to accurately position the tool to a targeted portion of a bone.

5. The tool of claim 1, wherein a ratio of the diameter of the bottom opening to the diameter the surface opening is between 1.05 and 1.3.

6. The tool of claim 1, wherein the diameter of the bottom opening is 5% to 25% larger than the diameter the surface opening.

7. A tool configured to make a wedge-shaped recess within a bone along or near a joint of a patient, comprising:

a body comprising a proximal end and a distal end, wherein the proximal end of the body is configured to be selectively rotated; and

at least one articulating cutter extending distally from the distal end of the body, the at least one articulating cutter being configured to be selectively moved between a stowed position and a radially extended position;

wherein the at least one articulating cutter is configured to be angled relative to a longitudinal axis of the tool when in the radially extended position; and

wherein the at least one articulating cutter is configured to create a wedge-shaped recess within a bone when in the radially extended position, wherein a diameter of a bottom opening of the recess is larger than a diameter of a surface opening of the recess.

8. The tool of claim 7, wherein the at least one articulating cutter is coupled to the main body using a hinge or other pivot point.

9. The tool of claim 7, wherein the at least one articulating cutter is normally resiliently biased in the stowed position.

10. The tool of claim 7, wherein the tool is cannulated, allowing the tool to be placed over a guide pin in order to accurately position the tool to a targeted portion of a bone.

11. The tool of claim 7, wherein a ratio of the diameter of the bottom opening to the diameter the surface opening is between 1.05 and 1.3.

12. The tool of claim 7, wherein the diameter of the bottom opening is 5% to 25% larger than the diameter the surface opening.

13. A tool configured to make a wedge-shaped recess within a bone along or near a joint of a patient, comprising:

a body comprising a proximal end and a distal end, wherein the proximal end of the body is configured to be selectively rotated; and

at least one movable cutter located along the distal end of the body, the at least one movable cutter being configured to be selectively moved between a stowed position and a radially extended position;

wherein the at least one movable cutter is configured to be angled relative to a longitudinal axis of the tool when in the radially extended position; and

wherein the at least one movable cutter is configured to create a wedge-shaped recess within a bone when in the radially extended position, wherein a diameter of a bottom opening of the recess is larger than a diameter of a surface opening of the recess.

14. The tool of claim 13, wherein the at least one movable cutter is coupled to the main body using a hinge or other pivot point.

15. The tool of claim 13, wherein the at least one movable cutter is normally resiliently biased in the stowed position.

16. The tool of claim 13, wherein the tool is cannulated, allowing the tool to be placed over a guide pin in order to accurately position the tool to a targeted portion of a bone.

17. The tool of claim 13, wherein a ratio of the diameter of the bottom opening to the diameter the surface opening is between 1.05 and 1.3.

18. The tool of claim 13, wherein the diameter of the bottom opening is 5% to 25% larger than the diameter the surface opening.