Inflatable device for use in surgical protocol relating to fixation of bone

• US 20060100635A1
• Filed: 08/09/2005
• Published: 05/11/2006
• Est. Priority Date: 01/26/1994
• Status: Abandoned Application

• Current Assignee: Orthophoenix, LLC (Marathon Patent Group, Inc.)
• Original Assignee: Kyphon Incorporated (Medtronic Plc)
• Inventors: Scholten, Arie, Reiley, Mark A., Taimadge, Karen
• Application Number:
  US11/199,715
• Publication Number:
  US 20060100635A1
• Time in Patent Office: Days
• US Class Current: 606/90
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61B 2017/0256 for the spine
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/441 made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
• 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 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/30535 Special structural features of bone or joint prostheses not otherwise provided for
• CPC Class Codes: A61F 2250/0058 Additional features; Implant or prostheses properties not otherwise provided for
• CPC Class Codes: A61M 2210/02 Bones
• CPC Class Codes: A61M 2210/1003 Spinal column
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

Systems for treating a bone, e.g. a vertebral body, having an interior volume occupied, at least in part, by cancellous bone provide a first tool, a second tool, and a third tool. The first tool establishes a percutaneous access path to bone. The second tool is sized and configured to be introduced through the percutaneous access path to form a void that occupies less than the interior volume. The third tool places within the void through the percutaneous access path a volume of filling material. Related methods for treating a bone, e.g. a vertebral body, having an interior volume occupied, at least in part, by cancellous bone provide establishing a percutaneous access path to bone. A tool is introduced through the percutaneous access path and manipulated to form a void that occupies less than the interior volume. A volume of filling material is then placed within the void through the percutaneous access path.

Claims

1. A method comprising:

introducing a void creation device into a vertebral body through a percutaneous access path, the void creation device including an expandable structure having an expanded configuration and an unexpanded configuration, the expandable structure configured, upon expansion within the vertebral body, to compact only a first region of a cancellous bone volume substantially without compacting a second region of the cancellous bone volume different from the first cancellous bone volume,

changing the expandable structure while disposed within the cancellous bone volume from the unexpanded configuration to the expanded configuration to compact only a first region of the cancellous bone volume substantially without compacting a second region of the cancellous bone volume different from the first cancellous bone volume, and

placing a volume of filling material within the first region through the percutaneous access path.