Tooling for creating tapered opening in tissue and related methods

• US 10,350,072 B2
• Filed: 04/13/2016
• Issued: 07/16/2019
• Est. Priority Date: 05/24/2012
• Status: Active Grant

• Current Assignee: Cartiva, Inc. (Stryker Corporation)
• Original Assignee: Cartiva, Inc. (Stryker Corporation)
• Inventors: Axelrod, Michael A., Tudor, Letitia
• Primary Examiner(s): Schillinger, Ann
• Application Number:
  US15/098,265
• Publication Number:
  US 20160302930A1
• Time in Patent Office: 1,189 Days
• CPC Class Codes: A61B 17/16 Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans arthroscopic bone cutters A61B17/320016; dental implant drills potentially for other surgical use A61C8/0089; bone grinders A61F2/4644, A22C17/06; A61B17/1662 takes precedence over all other subgroups except A61B17/17
• CPC Class Codes: A61B 17/1617 with mobile or detachable parts
• CPC Class Codes: A61B 2017/564 Methods for bone or joint treatment
• CPC Class Codes: A61F 2/30734 Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
• CPC Class Codes: A61F 2/30756 Cartilage endoprostheses A61F2/3603 takes precedence
• CPC Class Codes: A61F 2/3094 Designing or manufacturing processes
• CPC Class Codes: A61F 2/4618 of cartilage
• CPC Class Codes: A61F 2002/30075 swellable, e.g. when wetted
• CPC Class Codes: A61F 2002/30205 conical
• CPC Class Codes: A61F 2002/30677 Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body

Abstract

According to some embodiments, a method of creating for creating a reverse tapered opening within tissue comprises creating a cylindrical opening within a targeted anatomical site of a subject using a first device and removing additional tissue from the sidewalls of the cylindrical opening using a cutting member to create a reverse tapered opening within the targeted anatomical site using a second device, wherein, once the reverse tapered opening is created, a diameter or other cross-sectional dimension of a bottom surface of the opening is larger than a diameter or other cross-sectional dimension of a top surface of the opening.

Claims

1. A method of treating a joint of a patient, comprising:

creating a wedge recess in a bone using a tool by removing tissue from side walls of a cylindrical recess, wherein, once the wedge recess is created, a diameter or other cross-sectional dimension of a bottom of the wedge recess is larger than a diameter or other cross-sectional dimension of a surface opening of the wedge recess, wherein the tool comprises a cutting portion, the cutting portion comprising at least one cutter that is radially expanded by advancing an inner member within the cutting portion;

wherein the wedge recess is created by manually rotating the tool so that the cutting portion rotates relative to the bone;

at least partially withdrawing the inner member of the tool from the cutting portion to radially retract the at least one cutter of the cutting portion; and

inserting a wedge-shaped implant within the wedge recess, wherein the wedge-shaped implant is configured to be maintained within the wedge recess after implantation.

2. The method of claim 1,

further comprising creating the cylindrical recess;

wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded;

wherein the at least one cutter comprises at least two cutters; and

wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.

3. The method of claim 1, wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded.

4. The method of claim 1, wherein the implant is inserted within the wedge recess using an introducer, wherein the introducer radially compresses the implant for delivery into the wedge recess.

5. The method of claim 1, wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.

6. The method of claim 1, further comprising creating the cylindrical recess.

7. The method of claim 1, wherein the at least one cutter comprises at least two cutters.

8. The method of claim 1, wherein the diameter or other cross-sectional dimension of the bottom of the wedge recess is approximately 5% to 25% larger than the diameter or other cross-sectional dimension of the surface opening of the wedge recess.

9. The method of claim 1, wherein the tool is cannulated such that the tool is delivered to a targeted anatomical site over a guide pin.

10. A method of treating a joint of a patient, comprising:

removing bone tissue from side walls of a cylindrical recess using a tool to create a wedge recess, wherein, once the wedge recess is created, a diameter or other cross-sectional dimension of a bottom of the wedge recess is larger than a diameter or other cross-sectional dimension of a surface opening of the wedge recess, wherein the tool comprises a cutting portion, the cutting portion comprising at least one cutter that is radially expanded by advancing an inner member within the cutting portion;

wherein the wedge recess is created by rotating the tool so that the cutting portion rotates relative to the bone tissue;

at least partially withdrawing the inner member of the tool from the cutting portion to radially retract the at least one cutter of the cutting portion; and

inserting a wedge-shaped implant within the wedge recess, wherein the wedge-shaped implant is configured to be maintained within the wedge recess after implantation.

11. The method of claim 10,

wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded;

wherein the at least one cutter comprises at least two cutters; and

wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.

12. The method of claim 10, wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded.

13. The method of claim 10, wherein the implant is inserted within the wedge recess using an introducer, wherein the introducer radially compresses the implant for delivery into the wedge recess.

14. The method of claim 10, wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.

15. The method of claim 10, further comprising creating the cylindrical recess.

16. A method of treating a joint of a patient, comprising:

creating a wedge recess in a bone using a tool by removing tissue from walls of a cylindrical recess, wherein, once the wedge recess is created, a diameter or other cross-sectional dimension of a bottom of the wedge recess is larger than a diameter or other cross-sectional dimension of a surface opening of the wedge recess, wherein the tool comprises a cutting portion, the cutting portion comprising at least one cutter that is configured to be radially expanded;

wherein the wedge recess is created by rotating the tool so that the cutting portion rotates relative to the bone;

radially retracting the at least one cutter of the cutting portion; and

inserting a wedge-shaped implant within the wedge recess, wherein the wedge-shaped implant is configured to be maintained within the wedge recess after implantation.

17. The method of claim 16,

wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded;

wherein the at least one cutter comprises at least two cutters; and

wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.

18. The method of claim 16, wherein the at least one cutter is angled relative to a longitudinal axis of the tool when the at least one cutter is radially expanded.

19. The method of claim 16, wherein the implant is inserted within the wedge recess using an introducer, wherein the introducer radially compresses the implant for delivery into the wedge recess.

20. The method of claim 16, wherein a ratio of the diameter or other cross-sectional dimension of the bottom of the wedge recess to the diameter or other cross-sectional dimension of the surface opening of the wedge recess is approximately between 1.05 and 1.3.