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

• US 7,967,827 B2
• Filed: 09/27/2006
• Issued: 06/28/2011
• Est. Priority Date: 01/26/1994
• 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, Reiley, Mark A, Scholten, Arie, Scribner, Robert M
• Primary Examiner(s): Robert, Eduardo C
• Assistant Examiner(s): CARTER, TARA ROSE E
• Application Number:
  US11/527,953
• Publication Number:
  US 20070055284A1
• Time in Patent Office: 1,735 Days
• Field of Search: 623/17.11, 623/17.12, 606/90, 606 92- 94, 606/99, 606/105, 606/86.R, 604/93.01, 604/96.01
• US Class Current: 606/99
• 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 created into a bone having an interior volume occupied, at least in part, by a cancellous bone, e.g., a vertebral body. An expandable structure is introduced into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone. The expandable structure is expanded and the tool withdrawn, leaving the expandable structure expanded inside the cancellous bone. Expansion of the expandable 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 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 structure into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone; and

expanding the expandable structure;

withdrawing the tool, leaving the expandable structure expanded inside the cancellous bone, wherein the bone comprises a vertebral body and wherein the percutaneous path is established through a pedicle of the vertebral body.

2. 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 structure into the cancellous bone by deployment of a tool through the percutaneous path into the cancellous bone;

expanding the expandable structure by introducing a filler material into the structure within the cancellous bone, and withdrawing the tool, leaving the structure and filler material inside the cancellous bone, wherein the bone comprises a vertebral body and wherein the percutaneous path is established through a pedicle of the vertebral body.