Methods and devices for treating fractured and/or diseased bone using a mesh structure

• US 8,317,865 B2
• Filed: 09/27/2006
• Issued: 11/27/2012
• Est. Priority Date: 06/09/1997
• Status: Expired due to Fees

• Current Assignee: Orthophoenix, LLC (Marathon Patent Group, Inc.)
• Original Assignee: Kyphon SARL (Medtronic Plc)
• Inventors: Osorio, Reynaldo A, Follmer, Marialulu, Layne, Richard W, Boucher, Ryan P, Talmadge, Karen D, Basista, Joseph J
• Primary Examiner(s): Stewart, Alvin
• Assistant Examiner(s): CARTER, TARA ROSE E
• Application Number:
  US11/528,105
• Publication Number:
  US 20070055267A1
• Time in Patent Office: 2,253 Days
• Field of Search: 606/90, 606 92- 94, 606/99, 606/105, 623/17.11, 623/17.12, 604/104
• US Class Current: 623/17.11
• 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
• 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
• 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 established into a selected bone having an interior volume occupied, at least in part, by a cancellous bone, e.g., a vertebral body. An expandable mesh structure is introduced into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone. The expandable mesh structure is expanded within cancellous bone by conveying a material into the mesh structure. Expansion of the mesh structure can, e.g., compact cancellous bone, and/or form a cavity in cancellous bone, and/or move fractured cortical bone.

Claims

1. A filling device for conveying a filling material into the cavity through a percutaneous path;

and a mesh material sized and configured to be draped over the filling device and introduced through the percutaneous path prior to the filling device deploying the filling material and to be expanded within the bone by deployment of the filling material to compress cancellous bone to create a cavity in the cancellous bone, wherein the mesh material impedes passage of the filling material until hardening occurs.

2. A system according to claim 1 wherein the 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.

3. A system according to claim 1 further including a tool sized and configured to be introduced through a percutaneous access path for forming a cavity in the cancellous bone prior to introduction of the mesh structure.

4. A system according to claim 3 wherein the tool for forming a cavity comprises at least one of a tamp, a reamer, a hole punch, an expandable body, or an inflatable balloon.

5. A system according to claim 1 wherein the mesh structure is configured to expand within cancellous bone in response to introduction of the material.

6. A system according to claim 5 wherein the mesh structure is sized and configured to move factured cortical bone upon expansion within the bone.

7. A system according to claim 1 wherein the mesh structure comprises a woven structure.

8. A system according to claim 1 wherein the mesh structure comprises at least one of a breathable membrane material, a nitinol material, and a synthetic polyester fabric material.

9. A method comprising selecting a bone having an interior volume occupied, at least in part, by cancellous bone;

providing a filling device for conveying a filling material into the cavity through a percutaneous path and a mesh material sized and configured to be draped over the filling device and introduced through the percutaneous path prior to the filling device deploying the filling material, wherein the mesh material is to be expanded within the bone by deployment of the filling material to compress cancellous bone to create a cavity in the cancellous bone, wherein the mesh material impedes passage of the filling material until hardening occurs;

introducing the mesh structure through the percutaneous path into the cancellous bone, and conveying filling material into the mesh structure through the percutaneous path.

10. A method according to claim 9 further including forming a cavity in the cancellous bone prior to introduction of the mesh structure.

11. A method according to claim 9 wherein the mesh structure expands within cancellous bone in response to introduction of the material.

12. A method according to claim 11 wherein expansion of the mesh structure compacts cancellous bone.

13. A method according to claim 11 wherein expansion of the mesh structure forms a cavity in cancellous bone.

14. A method according to claim 11 wherein expansion of the mesh structure moves fractured cortical bone.

15. A method according to claim 9 wherein the selected bone is a vertebral body.

16. A method according to claim 15 wherein the percutaneous path is established through a pedicle of the vertebral body.

17. A method according to claim 9 wherein the 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.

18. A method according to claim 9 further including leaving the expanded mesh structure and material to reside within the cancellous bone.

19. A method comprising creating a percutaneous path into a selected bone having an interior volume occupied, at least in part, by a cancellous bone;

providing a filling device for conveying a filling material into a cavity through the percutaneous path and an expandable mesh material sized and configured to be draped over the filling device and introduced through the percutaneous path prior to the filling device deploying the filling material, wherein the expandable mesh material is to be expanded within the bone by deployment of the filling material in order to compress cancellous bone and create a cavity in the cancellous bone, wherein the expandable mesh material impedes passage of the filling material until hardening occurs;

introducing the expandable mesh material into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone; and

expanding the expandable mesh material within the cancellous bone by conveying the filling material into the expandable mesh material.

20. A method according to claim 19 further including forming a cavity in the cancellous bone prior to introduction of the mesh structure.

21. A method according to claim 19 wherein the mesh structure expands within cancellous bone in response to introduction of the material.

22. A method according to claim 21 wherein expansion of the mesh structure compacts cancellous bone.

23. A method according to claim 21 wherein expansion of the mesh structure forms a cavity in cancellous bone.

24. A method according to claim 21 wherein expansion of the mesh structure moves fractured cortical bone.

25. A method according to claim 19 wherein the selected bone is a vertebral body.

26. A method according to claim 19 wherein the percutaneous path is established through a pedicle of the vertebral body.

27. A method according to claim 19 wherein the 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.

28. A method according to claim 19 leaving the expanded mesh structure and material to reside within the cancellous bone.