Device and method for treatment of spinal deformity

Patent metadata

Field	Value
Publication number	US-9757160-B2
Application number	US-201314039660-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Sep 28, 2012
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

The present invention generally relates to methods and device for treatment of spinal deformity, wherein at least one tether is utilized to maintain the distance between the spine and the an ilium to (1) prevent increase in abnormal spinal curvature, (2) slow progression of abnormal curvature, or (3) impose at least one corrective displacement and/or rotation.

First claim

What is claimed is:

1. A spinal system comprising:
a clamp for receiving an elongate rod therein, wherein the clamp comprises a first opening for receiving the elongate rod, and a second opening transverse to the first opening for receiving a first portion of a tether, wherein the first opening that receives the elongate rod is formed on an upper surface of the clamp such that the elongate rod is downwardly delivered therein;
a fastener downwardly received in the first opening formed on the upper surface of the clamp, wherein the elongate rod is positioned between the tether and the fastener such that the fastener is not in direct contact with the tether;
an anchor configured to be implanted in the ilium, the anchor having a bore hole receiving a second portion of the tether, wherein when the anchor is implanted in the ilium, the tether extends from one side of the ilium to the other side of the ilium,
wherein when the fastener is actuated into the first opening, the elongate rod positioned in the first opening and the tether positioned in the second opening, the elongate rod contacts and compresses the tether, thereby securely locking the elongate rod and tether within the clamp.

2. The system of claim 1 , wherein the clamp is positioned on the elongate rod between two bone fasteners.

3. The system of claim 1 , wherein the clamp can be moved laterally on the elongate rod prior to tightening of the fastener.

4. The system of claim 1 , wherein the fastener is a set screw.

5. The system of claim 1 , wherein when the fastener is tightened the fastener applies a force against the elongate rod which applies a force against the tether to securely lock both the tether and the elongate rod within the clamp.

6. The system of claim 1 , wherein the anchor includes threads for engagement to the ilium.

7. The system of claim 1 , wherein the second portion of the tether is passed through the bore hole of the anchor and coupled to a collar.

8. The spinal system of claim 1 , wherein the positioning of the clamp or anchor is configured to modify the curvature of the spine.

9. A spinal system comprising:
a clamp for coupling to an elongate rod, wherein the clamp comprises a first opening for receiving the elongate rod and a second opening for receiving a tether, wherein the first opening that receives the elongate rod is formed on an upper surface of the clamp such that the elongate rod is downwardly delivered therein;
a fastener downwardly received in the first opening formed on the upper surface of the clamp for securing the tether to the elongate rod, wherein the elongate rod is positioned between the tether and the fastener such that the fastener is not in direct contact with the tether;
an anchor configured to be implanted in the ilium, the anchor having a bore hole receiving a second portion of the tether, wherein when the anchor is implanted in the ilium, the tether extends from one side of the ilium to the other side of the ilium,
wherein when the fastener is actuated into the first opening, the elongate rod contacts and compresses the tether, thereby securely locking the elongate rod and tether within the clamp, and the tether is securely positioned between a portion of a vertebral column and the ilium.

10. The spinal system of claim 9 , wherein the fastener is a set screw.

11. The spinal system of claim 9 , wherein the tether is looped through the second opening of the clamp.

12. The spinal system of claim 9 , wherein the elongate rod is extendable from laterally across the spinal column.

13. A spinal system comprising:
a clamp for coupling to an elongate rod and wherein the clamp comprises a first opening for receiving a fastener and a second opening for receiving a tether, wherein the first opening that receives the elongate rod is formed on an upper surface of the clamp such that the elongate rod is downwardly delivered therein;
a fastener downwardly received in the first opening formed on the upper surface of the clamp for securing the tether to the elongate rod, wherein the elongate rod is positioned between the tether and the fastener such that the fastener is not in direct contact with the tether;
an anchor configured to be implanted in the ilium, the anchor having a bore hole receiving a second portion of the tether, wherein when the anchor is implanted in the ilium, the tether extends from one side of the ilium to the other side of the ilium,
wherein when the fastener is actuated into the first opening, the elongate rod contacts and compresses the tether, thereby securely locking the elongate rod and tether within the clamp, and the tether is securely positioned between a portion vertebral column and the ilium,
wherein the anchor is configured to secure the second portion of the tether.

Assignees

• Globus Medical Inc
• Globus Medical Inc

Inventors

• Gordon Jeffrey David

Classifications

• A61B17/809

  with bone-penetrating elements, e.g. blades or prongs (bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233) · CPC title

• A61B17/7067

  Devices bearing against one or more spinous processes and also attached to another part of the spine; Tools therefor · CPC title

• A61B17/7001

  Screws or hooks combined with longitudinal elements which do not contact vertebrae (A61B17/7058 takes precedence) · CPC title

• A61B17/7068

  Devices comprising separate rigid parts, assembled in situ, to bear on each side of spinous processes; Tools therefor · CPC title

• A61B17/7007

  Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads · CPC title