Orthopedic Fixation Devices and Instruments for Installation Thereof

• US 20150173809A1
• Filed: 10/17/2014
• Published: 06/25/2015
• Est. Priority Date: 12/20/2013
• Status: Active Application

• Current Assignee: Globus Medical, Inc.
• Original Assignee: Globus Medical, Inc.
• Inventors: Bechtel, Matthew, Karpowicz, Edward, Artaki, Alexander, Pham, Khiem
• Application Number:
  US14/516,601
• Publication Number:
  US 20150173809A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/7002 Longitudinal elements, e.g. rods
• CPC Class Codes: A61B 17/7037 wherein pivoting is blocked when the rod is clamped
• CPC Class Codes: A61B 17/7085 for insertion of a longitudinal element down one or more hollow screw or hook extensions, i.e. at least a part of the element within an extension has a component of movement parallel to the extension's axis
• CPC Class Codes: A61B 17/7086 Rod reducers, i.e. devices providing a mechanical advantage to allow a user to force a rod into or onto an anchor head other than by means of a rod-to-bone anchor locking element; rod removers
• CPC Class Codes: A61B 17/7088 wherein the rod is moved transverse to the axis of the bone anchor
• CPC Class Codes: A61B 17/7089 wherein insertion is along an arcuate path
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter

Abstract

Minimally invasive vertebral stabilization systems may include at least one fastener, at least one coupling element connected to the fastener, and an elongate rod member. The fastener is deliverable to a vertebral body of a patient through an opening. The coupling element has at least one extended tab which defines an open central portion and a central longitudinal axis. The elongate rod member is configured to extend through the open central portion and be secured to the coupling element. The extended tab is configured to be removed from the coupling element once the elongate rod is secured to the coupling element.

Claims

1. A minimally invasive vertebral stabilization system, comprising:

at least one fastener deliverable to a vertebral body of a patient through an opening;

at least one coupling element connected to the fastener, the coupling element having at least one extended tab connected thereto, the at least one extended tab defining an open central portion; and

an elongate rod member extending from a proximal end to a distal end, the rod member being configured to extend through the open central portion and be secured to the coupling element,

wherein the at least one extended tab is configured to be removed from the coupling element once the elongate rod is secured to the coupling element.

2. The system of claim 1, wherein the at least one extended tab includes a first extension element connected to the coupling element.

3. The system of claim 2, wherein the first extension element includes a threaded interior surface.

4. The system of claim 1, wherein the at least one extended tab includes a first extension element connected to the coupling element at a break point.

5. The system of claim 4, wherein the break point includes a machined groove configured to break when the extended tab is moved inward or outward.

6. The system of claim 2, wherein the at least one extended tab includes a second extension element connected to the first extension element.

7. The system of claim 6, wherein the second extension element is connected to the first extension element by a dovetail joint.

8. The system of claim 6, wherein the second extension element is welded to the first extension element.

9. The system of claim 6, wherein the at least one extended tab comprises at least one indentation configured to receive a sleeve.

10. The system of claim 9, wherein the indentation is positioned at a distal end of the second extension element.

11. The system of claim 1 further comprising a sleeve positioned over the at least one extended tab.

12. The system of claim 1, wherein the at least one extended tab includes a pair of diametrically opposed extended tabs defining opposed longitudinal openings, the longitudinal openings providing lateral access to the open central portion.

13. The system of claim 12, wherein at least a portion of the elongate rod member is extendable through the longitudinal openings.

14. The system of claim 1, wherein the fastener includes polyaxial screws.

15. A minimally invasive vertebral stabilization system, comprising:

a fastener deliverable to a vertebral body of a patient,

a coupling element connected to the fastener, the coupling element having at least one extended tab connected thereto, the at least one extended tab including a first extension element connected to the coupling element at a break point and a second extension element connected to the first extension element, and the at least one extended tab defining an open central portion and a central longitudinal axis; and

an elongate rod member configured to be secured to the coupling element,

wherein the at least one extended tab is configured to be removed from the coupling element at the break point once the elongate rod is secured to the coupling element.

16. The system of claim 15, wherein the break point includes a machined groove configured to break when the at least one extended tab is moved inward or outward relative to the central longitudinal axis.

17. A minimally invasive vertebral stabilization system, comprising:

a fastener deliverable to a vertebral body of a patient;

a coupling element connected to the fastener, the coupling element having at least one extended tab connected thereto, the at least one extended tab defining an open central portion and a central longitudinal axis, the at least one extended tab including a pair of diametrically opposed extended tabs defining opposed longitudinal openings, the longitudinal openings providing lateral access to the open central portion; and

an elongate rod member configured to extend through the longitudinal openings,

wherein the at least one extended tab is configured to be removed from the coupling element once the elongate rod is secured to the coupling element.

18. The system of claim 17, wherein an insertion instrument is configured and dimensioned to be received within the open central portion such that the insertion instrument is moveable along or parallel to the central longitudinal axis.