IMPLANTABLE DEVICES FOR SUBCHONDRAL TREATMENT OF JOINT PAIN

• US 20110125264A1
• Filed: 11/19/2010
• Published: 05/26/2011
• Est. Priority Date: 11/20/2009
• Status: Abandoned Application

• Current Assignee: Zimmer Knee Creations, Inc. (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Knee Creations, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: HANSON, Shaun B., SHARKEY, Peter F., BAGGA, Charanpreet S., VISCOGLIOSI, Marc R.
• Application Number:
  US12/950,273
• Publication Number:
  US 20110125264A1
• Time in Patent Office: Days
• US Class Current: 623/16.11
• CPC Class Codes: A61B 17/68 Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin bone staples A61B17/0642
• CPC Class Codes: A61B 17/70 Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61F 2/461 of knees

Abstract

Devices and associated methods are disclosed for treating bone, and particularly bone tissue at the joints. Disclosed are curved implantable devices that can be used either alone or in combination with this augmentation or hardening material for the repair of bone defects and which are particularly suited for use at the joints, and even more particularly, suited for use at the subchondral bone level.

Claims

1. An implantable device for insertion into a periphery of a bone, comprising:

a curved elongate body extending between a first, leading end and a second, trailing end, the second end including a tool-receiving portion for receiving a tool.

2. The device of claim 1, wherein the tool-receiving portion comprises a threaded bore.

3. The device of claim 1, wherein at least a portion of the curved elongate body is smooth.

4. The device of claim 1, wherein the first end is tapered.

5. The device of claim 1, wherein the curved elongate body comprises at least one surface feature to enhance bone attachment.

6. The device of claim 5, wherein the at least one surface feature comprises at least one spike, barb, or tooth.

7. A method of treating a bone defect near a periphery of the bone, comprising the steps of:

providing a curved implantable device having a tool-engaging feature;

securing the device to an insertion tool; and

using the insertion tool, inserting the curved implantable device along the periphery of the bone.

8. The method of claim 7, wherein inserting the curved implantable device comprises inserting the curved implantable device in a subchondral region of a bone.

9. The method of claim 7, wherein inserting the curved implantable device comprises inserting the curved implantable device along a subchondral access path to a subchondral defect that preserves an articular surface of a bone.

10. The method of claim 7, further comprising drilling the access path to the subchondral defect.

11. The method of claim 7, further comprising compacting bone tissue prior to inserting the curved implantable device.

12. The method of claim 7, further comprising injecting a bone hardening material via the subchondral access path.

13. A method of treating a bone defect, comprising the steps of:

providing a first implantable device, the device having a curved shape forming a concave inner surface;

providing a second implantable device, the device having a curved shape forming a concave inner surface; and

inserting the first and second implantable devices such that the concave inner surfaces face towards one another and encircle the bone defect.

14. The method of claim 13, wherein inserting the first and second implantable devices comprises inserting the first and second implantable devices such that the concave inner surfaces face towards one another and encircle a subchondral bone defect.

15. The method of claim 13, wherein inserting the first and second implantable devices comprises inserting the first and second implantable devices along a subchondral access path to a subchondral defect that preserves an articular surface of a bone.

16. The method of claim 13, further comprising drilling the access path to the subchondral defect.

17. The method of claim 13, further comprising compacting bone tissue prior to inserting the curved first and second implantable device.

18. The method of claim 13, further comprising injecting a bone hardening material via the subchondral access path.