Methods and devices for treating bone after high velocity and/or trauma fracture

• US 7,959,638 B2
• Filed: 03/25/2003
• Issued: 06/14/2011
• 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: Layne, Richard W., Follmer, Marialulu, Boucher, Ryan P., Basista, Joseph J., Osorio, Reynaldo A., Talmadge, Karen D.
• Primary Examiner(s): Robert; Eduardo C
• Assistant Examiner(s): Yang; Andrew
• Application Number:
  US10/397,049
• Publication Number:
  US 20030233096A1
• Time in Patent Office: 3,003 Days
• Field of Search: 606 92- 94, 606 96- 99, 606/246, 606/279, 606/105, 623 1711- 16
• US Class Current: 606/94
• 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

An expandable body is inserted into an area of cancellous within a vertebral body through a percutaneous access path. A bone filler is conveyed into the expandable body to expand the expandable body and displace cancellous bone and create a cavity occupied at least in part by the expandable body and the bone filler. The expandable body and the bone filler are left within the cavity to strengthen the vertebral body.

Claims

1. A method comprising:

inserting an insertion device percutaneously into a vertebral body having an interior volume occupied, at least in part, by cancellous bone;

inserting a cavity-forming device comprising an expandable body through the insertion device wholly into an area of cancellous bone in the vertebral body;

conveying an inflation medium into the expandable body, via a catheter having only a single lumen, to expand the expandable body and displace cancellous bone and create a cavity occupied at least in part by the expandable body and the inflation medium wholly within the vertebral body;

removing the inflation medium from the expandable body;

leaving the expandable body within the cavity wholly within the vertebral body; and

further comprising after removing the inflation medium from the expandable body re-conveying another inflation medium into the expandable body.

2. A method comprising:

inserting an insertion device percutaneously into a vertebral body having an interior volume occupied, at least in part, by cancellous bone;

inserting a cavity-forming device comprising of a single expandable body through the insertion device wholly into an area of cancellous bone in the vertebral body;

conveying an inflation medium into the single expandable body to expand the expandable body and displace cancellous bone and create a cavity occupied at least in part by the expandable body;

conveying the inflation medium into the cavity occupied at least in part by the single expandable body;

removing the inflation medium from the single expandable body;

leaving the single expandable body within the cavity wholly within the vertebral body; and

further comprising after removing the inflation medium from the single expandable body re-conveying another inflation medium into the single expandable body.