US 6,981,981 B2Granted

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

AssigneeKyphon Inc.

InventorsMark A. Reiley, Arie Scholten, Karen Talmadge

Life of this patent

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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.

Claims8

Dependent claims

A method comprising

selecting a vertebral body for treatment having a cortical wall enclosing a cancellous bone volume,
providing a void creation device including an expandable structure having an expanded configuration and an unexpanded configuration, the expandable structure having at least one dimension so that changing the expandable structure from the unexpanded configuration to the expanded configuration while disposed within the cancellous bone volume compacts 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,
introducing the void creation device into the vertebral body through a percutaneous access path,
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.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/747,547Filed 29 Dec 2003 · division
Priority: 26 Jan 1994
Published: US 2004/0153114 A15 Aug 2004
Granted: 3 Jan 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification96 codes

A61B 10/025
Pointed or sharp biopsy instruments: for taking bone, bone marrow or cartilage samples
A61B 17/7097
Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant: stabilisers comprising fluid filler in an implant, e.g.…
A61B 17/7258
With special means of locking the nail to the bone: with laterally expanding parts, e.g. for gripping the bone
A61B 17/7275
With laterally expanding parts, e.g. for gripping the bone: with expanding cylindrical parts

Family

Application08/188,224Parent of this continuation · filed 26 Jan 1994
Application08/788,786Parent of this division · filed 23 Jan 1997
Application09/059,796Parent of this division · filed 13 Apr 1998
Application10/200,674Parent of this division · filed 22 Jul 2002
Application10/411,573Parent of this division · filed 10 Apr 2003
US 2004/0153114 A1Pre-grant publication · published 5 Aug 2004
US 6,663,647 B2Parent of this division
US 6,423,083 B1Parent of this division
US 6,235,043 B1Parent of this division
Application08/788,786Parent of this continuation
US 2001/0044626 A1Published application
US 2002/0183778 A1Published application
US 2003/0191489 A1Published application
US 6,981,981 B2This patent

From the US filing history. Foreign family members aren’t listed.