Methods and devices for treating fractured and/or diseased bone using an expandable bio-absorbable structure that remains within the bone

• US 20070225705A1
• Filed: 09/27/2006
• Published: 09/27/2007
• Est. Priority Date: 01/26/1994
• Status: Abandoned Application

• Current Assignee: Orthophoenix, LLC (Marathon Patent Group, Inc.)
• Original Assignee: Kyphon Incorporated
• Inventors: Boucher, Ryan, Follmer, Marialulu, Layne, Richard, Basista, Joseph, Osorio, Reynaldo, Talmadge, Karen
• Application Number:
  US11/527,954
• Publication Number:
  US 20070225705A1
• Time in Patent Office: Days
• US Class Current: 606/60
• CPC Class Codes: A61B 17/1604 Chisels; Rongeurs; Punches; Stamps
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/8805 for introducing fluid filler into bone or extracting it A61B17/7097, A61B17/8833 take precedence
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2050/0065 Peelable cover
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 50/33 Trays
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30581 having a pocket filled with fluid, e.g. liquid
• CPC Class Codes: A61F 2002/4635 : using minimally invasive surgery
• CPC Class Codes: A61F 2002/4662 : for measuring penetration depth
• CPC Class Codes: A61F 2250/0098 : radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2310/00353 : Bone cement, e.g. polymethylmethacrylate or PMMA

Abstract

A percutaneous path is created into a bone having an interior volume occupied, at least in part, by a cancellous bone, e.g., a vertebral body. An expandable bio-absorbable structure is introduced into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone. The expandable bio-absorbable structure is expanded and the tool withdrawn, leaving the expandable bio-absorbable structure expanded inside the cancellous bone. Expansion of the expandable bio-absorbable structure within cancellous bone can, e.g., compact cancellous bone, and/or create a cavity in cancellous bone, and/or move fractured cortical bone.

Claims

1. A system comprising

a first tool sized and configured to establish an access path through soft tissue to bone having an interior volume occupied, at least in part, by cancellous bone,

an expandable bio-absorbable structure sized and configured for expansion in cancellous bone, and

a second tool sized and configured for passage through the access path to introduce into the cancellous bone the expandable bio-absorbable structure, which remains within the cancellous bone upon removal of the second tool.

2. A system according to claim 1 further comprising:

a tool sized and configured to introduce a filler material into the cancellous bone.

3. A system according to claim 2

wherein the filler material comprises at least one of a bone filler, a bone cement, a synthetic bone substitute, a bone biomaterial, a hydroxyapatite material, a bone mineral material, a thixotropic material, a curable bio-material, allograft tissue, and autograft tissue.

4. A system according to claim 1 further comprising:

a tool sized and configured to introduce a filler material into the expandable bio-absorbable structure to expand the expandable bio-absorbable structure.

5. A system according to claim 4

wherein the filler material comprises at least one of a bone filler, a bone cement, a synthetic bone substitute, a bone biomaterial, a hydroxyapatite material, a bone mineral material, a thixotropic material, a curable bio-material, allograft tissue, and autograft tissue.

6. A system according to claim 4, wherein expansion of the expandable bio-absorbable structure within cancellous bone compacts cancellous bone.

7. A system according to claim 4, wherein expansion of the expandable bio-absorbable structure within cancellous bone creates a cavity in cancellous bone.

8. A system according to claim 4, wherein expansion of the expandable bio-absorbable structure within cancellous bone moves fractured cortical bone.

9. A system according to claim 1, wherein expansion of the expandable bio-absorbable structure within cancellous bone compacts cancellous bone.

10. A system according to claim 1, wherein expansion of the expandable bio-absorbable structure within cancellous bone creates a cavity in cancellous bone.

11. A system according to claim 1, wherein expansion of the expandable bio-absorbable structure within cancellous bone moves fractured cortical bone.

12. A system according to claim 1

wherein the expandable bio-absorbable structure comprises a mesh material.

13. A system according to claim 1

wherein the expandable bio-absorbable structure comprises a balloon.

14. A method comprising

creating a percutaneous path into a bone having an interior volume occupied, at least in part, by a cancellous bone;

introducing an expandable bio-absorbable structure into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone; and

expanding the expandable bio-absorbable structure;

withdrawing the tool, leaving the expandable bio-absorbable structure expanded inside the cancellous bone.

15. A method according to claim 14 further comprising:

a tool sized and configured to introduce a filler material into the cancellous bone.

16. A method according to claim 15

wherein the filler material comprises at least one of a bone filler, a bone cement, a synthetic bone substitute, a bone biomaterial, a hydroxyapatite material, a bone mineral material, a thixotropic material, a curable bio-material, allograft tissue, and autograft tissue.

17. A method according to claim 14, wherein expansion of the expandable bio-absorbable structure within cancellous bone compacts cancellous bone.

18. A method according to claim 14, wherein expansion of the expandable bio-absorbable structure within cancellous bone creates a cavity in cancellous bone.

19. A method according to claim 14, wherein expansion of the expandable bio-absorbable structure within cancellous bone moves fractured cortical bone.

20. A method according to claim 14

wherein the expandable bio-absorbable structure comprises a mesh material.

21. A method according to claim 14

wherein the expandable bio-absorbable structure comprises a balloon.

22. A method according to claim 14

wherein the bone comprises a vertebral body.

23. A method according to claim 22

wherein the percutaneous path is established through a pedicle of the vertebral body.

24. A method comprising

creating a percutaneous path into a bone having an interior volume occupied, at least in part, by a cancellous bone;

introducing an expandable bio-absorbable structure into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone;

expanding the expandable bio-absorbable structure by introducing a filler material into the bio-absorbable structure within the cancellous bone, and

withdrawing the tool, leaving the expandable bio-absorbable structure and filler material inside the cancellous bone.

25. A method according to claim 24

wherein the filler material comprises at least one of a bone filler, a bone cement, a synthetic bone substitute, a bone biomaterial, a hydroxyapatite material, a bone mineral material, a thixotropic material, a curable bio-material, allograft tissue, and autograft tissue.

26. A method according to claim 24 wherein expansion of the expandable bio-absorbable structure within cancellous bone compacts cancellous bone.

27. A method according to claim 24 wherein expansion of the expandable bio-absorbable structure within cancellous bone creates a cavity in cancellous bone.

28. A method according to claim 24 wherein expansion of the expandable bio-absorbable structure within cancellous bone moves fractured cortical bone.

29. A method according to claim 24

wherein the expandable bio-absorbable structure comprises a mesh material.

30. A method according to claim 24

wherein the expandable bio-absorbable structure comprises a balloon.

31. A method according to claim 24

wherein the bone comprises a vertebral body.

32. A method according to claim 31

wherein the percutaneous path is established through a pedicle of the vertebral body.