Spinal correction system and method

Patent metadata

Field	Value
Publication number	US-10194958-B2
Application number	US-201615139406-A
Country	US
Kind code	B2
Filing date	Apr 27, 2016
Priority date	Apr 27, 2016
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

A surgical instrument comprises a first arm connected with a longitudinal element and a first spinal construct. The first arm is connected with the longitudinal element and includes a body engageable with a first spinal construct and rotatable relative to the first arm in a first orientation and a second orientation. A second arm is axially translatable relative to the first arm and includes a body engageable with a second spinal construct and is rotatable relative to the second arm in a first orientation and a second orientation. The bodies include locks. In some embodiments, spinal constructs, implants, systems and methods are disclosed.

First claim

What is claimed is:

1. A surgical instrument comprising:
a longitudinal element;
a first arm comprising a first part directly connected with the longitudinal element and a second part pivotally connected with the first part;
a locking mechanism configured to fix the first part relative to the second part;
a first body connected with the second part and engageable with a first spinal construct, the first body being rotatable relative to the second part in a first orientation and a second orientation, the first body including a lock to fix the first body relative to the second part;
a second arm being axially translatable relative to the first arm and including a housing;
a second body connected with the second arm and engageable with a second spinal construct, the second body being rotatable relative to the second arm in a first orientation and a second orientation, the second body including a lock to fix the second body relative to the second arm; and
a locking element pivotably coupled to the housing and configured to move between a first orientation in which the second arm and is translatable along the longitudinal element and a second orientation in which the second arm is prevented from translating along the longitudinal element.

2. A surgical instrument as recited in claim 1 , wherein the lock of the first body includes a collar and a shaft that support the second part.

3. A surgical instrument as recited in claim 2 , wherein the collar defines an opening and the shaft defines an opening, the openings being aligned to support the second part.

4. A surgical instrument as recited in claim 2 , wherein the collar includes a spline surface engageable with the first body to fix the first body relative to the second part in the first orientation.

5. A surgical instrument as recited in claim 2 , wherein the shaft includes a screw engageable with the second part to fix the first body relative to the second part in the second orientation.

6. A surgical instrument as recited in claim 5 , wherein the lock of the second body is engageable with the second body to fix the second body relative to the second arm in the first orientation and engageable with the second arm to fix the second body relative to the second arm in the second orientation.

7. A surgical instrument as recited in claim 1 , wherein the first body includes a sleeve that defines a cavity for capture of the first spinal construct.

8. A surgical instrument as recited in claim 1 , wherein the first body includes a mating element having a quick release connection with the first spinal construct.

9. A surgical instrument as recited in claim 1 , wherein the first body includes at least one releasably engageable latch connectable with a mating element of the first spinal construct.

10. A surgical instrument as recited in claim 1 , wherein the first body includes a pair of resiliently biased latches connectable with a mating element of the first spinal construct.

11. A surgical instrument as recited in claim 10 , wherein the latches are biased to a capture position.

12. A surgical instrument as recited in claim 1 , wherein the first part defines a longitudinal axis, the second part is rotatable relative to the first part about an axis extending transverse to the longitudinal axis.

13. A surgical instrument as recited in claim 12 , wherein the second arm includes a first part connected with the longitudinal element and a second part connected with the first spinal construct, the second part of the second arm being rotatable relative to the first part of the second arm.

14. A surgical instrument as recited in claim 1 , wherein the first body defines a longitudinal axis and the first arm is disposed with the first body along a transverse axis.

15. A surgical instrument as recited in claim 1 , wherein the longitudinal element is rotatable in a plurality of orientations relative to the first spinal construct.

16. A surgical instrument as recited in claim 1 , wherein the longitudinal element has a polygonal cross sectional configuration.

17. A surgical instrument as recited in claim 1 , wherein the longitudinal element comprises a top surface having a plurality of splines engageable with the locking element when the locking element is in the second orientation.

18. A surgical instrument as recited in claim 17 , wherein the longitudinal element comprises a bottom surface opposite the top surface, the bottom surface being free of splines.

19. A surgical instrument as recited in claim 1 , wherein the longitudinal element extends through a cavity of the housing.

20. A spinal correction system comprising:
a first spinal construct including fasteners;
a second spinal construct including fasteners;
a surgical instrument including a first arm that is axially translatable relative to a second arm, the arms being connected with and rotatable relative to a longitudinal element;
a first sleeve connected with the first arm and engageable with the first spinal construct, the first sleeve being rotatable relative to the first arm in a first orientation and a second orientation, the first sleeve including a lock to fix the first sleeve relative to the first arm;
a second sleeve connected with the second arm and engageable with the second spinal construct, the second sleeve being rotatable relative to the second arm in a first orientation and a second orientation, the second sleeve including a lock to fix the second sleeve relative to the second arm; and
a locking element pivotably coupled to a housing of the second arm, the locking element being configured to move between a first orientation in which the second arm is translatable along the longitudinal element and a second orientation in which the second arm is prevented from translating along the longitudinal element.

Assignees

• Warsaw Orthopedic Inc
• Warsaw Othopedic Inc

Inventors

• Bobbitt Dustin
• Mire David A

Classifications

• A61B17/708 Primary

  with tubular extensions coaxially mounted on the bone anchors · CPC title

• A61B17/7032

  Screws or hooks with U-shaped head or back through which longitudinal rods pass · CPC title

• A61B2017/681

  Alignment, compression, or distraction mechanisms · CPC title

• A61B17/7001

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

• A61B17/7002

  Longitudinal elements, e.g. rods · CPC title