# US 8,771,278 B2 · Systems and methods for vertebral or other bone structure height restoration and stabilization

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- Number: US 8,771,278 B2
- Document ID: US8771278B2
- Status: Granted
- Kind: B2
- Application number: 13/547,859
- Filed: 2012-07-12
- Published: 2012-11-01
- Granted: 2014-07-08
- Earliest claimed: 2009-11-10
- Assignees: CareFusion 2200, Inc.
- Applicants: Evan D. Linderman; John A. Krueger
- Inventors: Evan D. Linderman; John A. Krueger
- Web page: https://patentgrep.com/patent/US8771278B2

## CPC

- A61B 17/8855: {inflatable, e.g. kyphoplasty balloons}
- A61B 17/8805: {for introducing fluid filler into bone or extracting it (A61B17/7097, A61B17/8833 take precedence)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A method for stabilizing fractured bone structure having a fractured height includes expanding the bone structure to a restored height greater than the fractured height by transitioning an expandable member inserted into the bone structure from a contracted state to an expanded state. A curable material is delivered into a cavity formed in the bone structure and allowed to harden while the expandable member maintains the bone structure at the restored height. The expandable member is then removed from the bone structure.

## Claims

### Claim 1

A method for stabilizing a fractured bone structure of a patient, the fractured bone structure having a fractured height, the method comprising:
expanding the bone structure to a restored height greater than the fractured height by transitioning at least a first expandable member inserted into the bone structure from a contracted state to an expanded state;
delivering a curable material into a first cavity formed in the bone structure while the first expandable member maintains the bone structure at the restored height;
allowing the curable material to harden while the first expandable member maintains the bone structure at the restored height; and
after the curable material has hardened, removing the first expandable member from the bone structure.

### Claim 2 (depends on 1)

The method of claim 1, wherein the bone structure is a vertebra.

### Claim 3 (depends on 1)

The method of claim 1, wherein a second cavity is defined in the bone structure following removal of the first expandable member, the method further comprising:
delivering a curable material into the second cavity.

### Claim 4 (depends on 1)

The method of claim 1, wherein the step of expanding the bone structure further includes transitioning a second expandable member inserted into the bone structure from a contracted state to an expanded state.

### Claim 5 (depends on 4)

The method of claim 4, wherein the first and second expandable members are balloons.

### Claim 6 (depends on 1)

The method of claim 1, wherein the first expandable member includes a balloon exteriorly coated with anti-sticking material.

### Claim 7 (depends on 1)

The method of claim 1, wherein the step of delivering a curable material includes a portion of the curable material coming into contact with the first expandable member, and the step of allowing the curable material to harden includes the portion of the curable material in contact with the first expandable member not bonding to the first expandable member.