Apparatus for bone stabilization and distraction and methods of use

Patent metadata

Field	Value
Publication number	US-9421044-B2
Application number	US-201313804521-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

In some embodiments, a method includes disposing a flexible band through an aperture of a support member, the support member having a fixation portion configured to secure the support member to a first bone portion. The method includes advancing a portion of the flexible band through an attachment portion of the flexible band until the flexible band is secured to a second bone portion. The method includes advancing a portion of the fixation portion of the support member into the first bone portion until the support member is secured to the first bone portion.

First claim

What is claimed is:

1. An apparatus, comprising:
a flexible elongate body comprising a distal end portion, a body portion, and a proximal end portion, the proximal end portion comprising an attachment portion that is configured to receive the distal end portion and the body portion to form a loop around a first vertebra, wherein the attachment portion is configured to permit movement of the body portion in a first direction but substantially limit the movement of the body portion in a second direction, wherein the attachment portion is monolithically formed with the flexible elongate body; and
a support member comprising:
a first portion comprising an aperture configured to receive the distal end portion and the body portion of the flexible elongate body, and further comprising a first coupler portion configured to be selectively adjusted to receive and secure a third portion;
the second portion comprising a fixation portion that is configured to be coupled to a second vertebra that is adjacent the first vertebra and a second coupler portion configured to be selectively adjusted to receive and secure the third portion; and
the third portion disposed between the first portion and the second portion;
wherein a distance between the coupler portion of the first portion and the fixation portion of the second portion defines a distraction distance between the first vertebra and the second, adjacent vertebra.

2. The apparatus of claim 1 , wherein the flexible elongate body is a first flexible elongate body, the apparatus further comprising:
a second flexible elongate body comprising a distal end portion, a body portion, and an attachment portion that is configured to receive the distal end portion; and
the third portion having a length configured to define a distraction between the second vertebra and the first vertebra when the body portion of the first flexible elongate body surrounds the first vertebra and when the body portion of the second flexible elongate body surrounds the second vertebra.

3. The apparatus of claim 1 , wherein the support member is a first support member, the apparatus further comprising a second support member comprising a first portion that includes an aperture configured to receive the distal end portion of the flexible elongate body; and a second portion configured to be coupled to the second vertebra.

4. The apparatus of claim 1 , wherein the first portion of the support member is configured to be coupled to the third portion of the support member via a setscrew.

5. The apparatus of claim 1 , wherein the first portion and the second portion are separate components.

6. The apparatus of claim 1 , wherein the third portion is a rod.

7. The apparatus of claim 1 , wherein:
the fixation portion of the second portion is a bone screw.

8. An apparatus, comprising:
a flexible elongate body comprising a distal end portion, a body portion, and a proximal end portion, the proximal end portion comprising an attachment portion that is configured to receive the distal end portion and the body portion when the body portion couples to a first vertebra, wherein the attachment portion is configured to permit movement of the body portion in a first direction but substantially limit the movement of the body portion in a second direction, wherein the attachment portion is monolithically formed with the flexible elongate body; and
a support member comprising:
an elongate member comprising a first end with an aperture configured to receive the distal end portion and the body portion of the flexible elongate body, and a second end comprising a first coupler portion configured to selectively receive an extension member;
a fixation portion comprising a second coupler portion configured to selectively receive the extension member, the fixation portion configured to secure the support member to a second vertebra that is adjacent the first vertebra; and
the extension member configured to be selectively coupled to the first coupler portion and to the second coupler portion;
wherein a distance between the first coupler portion of the elongate member and the second coupler portion of the fixation portion defines a distraction distance between the first vertebra and the second, adjacent vertebra.

9. The apparatus of claim 8 , wherein the fixation portion of the support member is a first fixation portion, the support member further comprising a second fixation portion configured to secure the support member to the first vertebra.

10. The apparatus of claim 8 , wherein the fixation portion includes a screw.

11. The apparatus of claim 8 , wherein the fixation portion is movable relative to the second coupler portion.

12. A kit, comprising:
a flexible band configured to be secured to a first vertebra, the flexible band comprising a distal end portion, a body portion, and a proximal end portion, the proximal end portion comprising an attachment portion that is configured to receive the distal end portion and the body portion to form a loop, wherein the attachment portion is configured to permit movement of the body portion in a first direction but substantially limit the movement of the body portion in a second direction, wherein the attachment portion is monolithically formed with the flexible band; and
a support member comprising:
an elongate member with a first end comprising an interface portion configured to receive at least a portion of the flexible band, and a second end comprising a coupler portion, the coupler portion having a locking mechanism configured to receive and secure an extension portion; and
a fixation portion selectively coupleable to the coupler portion via the extension portion, the fixation portion and configured to secure the support member to a second vertebra that is adjacent the first vertebra, such that the first vertebra and the second vertebra are stabilized;
wherein a distance between the coupler portion of the elongate member and the fixation portion is adjustable by securing the extension portion at different points along the length of the extension portion to define a distraction distance between the first vertebra and the second, adjacent vertebra.

13. The kit of claim 12 , wherein the support member is a first support member, the kit further comprising:
a second support member having an interface portion configured to receive at least a portion of the flexible band, the second support member having a fixation portion configured to secure the second support member to the second vertebra such that the first vertebra is stabilized relative to the second vertebra.

14. The kit of claim 12 , wherein the fixation portion includes a screw.

Assignees

• Spinal Elements Inc

Inventors

• Blain Jason
• Martin Greg

Classifications

• A61B17/7064

  Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor · CPC title

• A61B17/7035

  Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other · CPC title

• A61B2017/7073

  with intervertebral connecting element crossing an imaginary spinal median surface · CPC title

• A61B2017/567

  Joint mechanisms or joint supports in addition to the natural joints and outside the joint gaps · CPC title

• A61B17/7053 Primary

  with parts attached to bones or to each other by flexible wires, straps, sutures or cables · CPC title