Spinal implant system and method

Patent metadata

Field	Value
Publication number	US-11969192-B2
Application number	US-202117470020-A
Country	US
Kind code	B2
Filing date	Sep 9, 2021
Priority date	Apr 26, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A spinal construct includes a body defining a transverse axis. The body includes a wall disposed between a first implant cavity and a second implant cavity. The body further defines a first opening communicating with the first implant cavity and a second opening communicating with the second implant cavity. The first opening defines a first axis and the second opening defines a second axis. At least one of the first axis and the second axis are disposed in a substantially non-perpendicular orientation relative to the transverse axis. Systems, surgical instruments, implants and methods are disclosed.

First claim

What is claimed is:

1. A spinal construct comprising a body, the body extending between opposite first and second ends and including opposite proximal and distal surfaces, the construct comprising a first arm extending from the first end and a second arm extending from the second end, the proximal surface and inner surfaces of the arms defining a first implant cavity, the construct comprising an extension extending from the second arm, an end of the extension defining a second implant cavity, the construct including a first opening communicating with the first implant cavity and a second opening communicating with the second implant cavity, the first opening defining a first axis and the second opening defining a second axis, the second axis being disposed in a non-parallel orientation relative to the first axis such that the second opening is angled toward the first opening, a portion of the end of the extension that defines the second implant cavity extending perpendicular to the first axis.

2. The spinal construct recited in claim 1 , wherein the first axis extends through the first implant cavity and the second axis is spaced apart from the second implant cavity.

3. The spinal construct recited in claim 1 , wherein the construct comprises a bore extending through the proximal and distal surfaces of the body.

4. The spinal construct recited in claim 3 , wherein the bore is coaxial with the first axis.

5. The spinal construct recited in claim 1 , wherein the inner surfaces of the arms are threaded for engagement with threads of a setscrew.

6. The spinal construct recited in claim 1 , wherein the second opening includes a proximal portion and a distal portion, the proximal portion being unthreaded, the distal portion comprising a female thread configured for engagement with threads of a setscrew.

7. The spinal construct recited in claim 1 , further comprising:
a first setscrew threaded with threads defined by the inner surfaces of the arms; and
a second setscrew threaded with a threaded surface that defines a portion of the second opening.

8. The spinal construct recited in claim 7 , wherein:
the first setscrew is coaxial with the first axis; and
the second setscrew is coaxial with the second axis.

9. The spinal construct recited in claim 1 , further comprising a setscrew disposable with the first opening such that the setscrew is coaxial with the first axis and is engageable with a spinal rod disposed with the first implant cavity.

10. The spinal construct recited in claim 1 , wherein the end of the extension comprises a hook that includes the portion and defines the second implant cavity.

11. The spinal construct recited in claim 10 , wherein the body is disposed in a first transverse plane and a tip of the hook is disposed in a second transverse plane, the second transverse plane extending parallel to the first transverse plane and being disposed proximal to the first transverse plane, the transverse planes each extending perpendicular to the first axis.

12. The spinal construct recited in claim 1 , wherein the first implant cavity is disposed in a first transverse plane and the second implant cavity is disposed in a second transverse plane, the second transverse plane extending parallel to the first transverse plane and being disposed proximal to the first transverse plane, the transverse planes each extending perpendicular to the first axis.

13. The spinal construct recited in claim 1 , wherein the second opening extends through opposite proximal and distal surfaces of the extension, the proximal and distal surfaces of the extension each extending at an acute angle relative to the first axis.

14. The spinal construct recited in claim 1 , wherein a proximal end of the second arm is continuous with a proximal surface of the extension.

15. The spinal construct recited in claim 1 , wherein the second implant cavity is in communication with a third opening that faces the body, the third opening being spaced apart from the second opening.

16. The spinal construct recited in claim 1 , wherein the first opening defines a proximal opening of the first implant cavity and a third opening of the construct defines a distal opening of the second implant cavity, the third opening being spaced apart from the second opening.

17. The spinal construct recited in claim 1 , wherein the construct is configured to have a first rod moved distally into the first implant cavity and to have a second rod moved proximally into the second implant cavity.

18. The spinal construct recited in claim 1 , wherein the distal surface is planar and extends perpendicular to the first axis.

19. A spinal construct comprising a body, the body extending between opposite first and second ends and comprising opposite proximal and distal surfaces, the construct comprising a first arm extending from the first end and a second arm extending from the second end, the proximal surface and inner surfaces of the arms defining a first implant cavity, the construct comprising an extension extending from the second arm, an end of the extension defining a second implant cavity, the construct including a first opening communicating with the first implant cavity and a second opening communicating with the second implant cavity, the first opening defining a first axis and the second opening defining a second axis, the second axis being disposed in a non-parallel orientation relative to the first axis such that the second opening is angled toward the first opening, a portion of the end of the extension that defines the second implant cavity extending perpendicular to the first axis,
wherein the construct comprises a circular bore extending through the proximal and distal surfaces of the body, the bore being coaxial with the first axis,
wherein the inner surfaces of the arms are threaded for engagement with threads of a setscrew, and
wherein the second opening includes a proximal portion and a distal portion, the proximal portion being unthreaded, the distal portion comprising a female thread.

20. A spinal construct comprising:
a body extending between opposite first and second ends and comprising opposite proximal and distal surfaces, the construct comprising a first arm extending from the first end and a second arm extending from the second end, the proximal surface and inner surfaces of the arms defining a first implant cavity, the inner surfaces of the arms being threaded for engagement with threads of a setscrew, the construct comprising an extension extending from the second arm, an end of the extension defining a second implant cavity, the construct including a first opening communicating with the first implant cavity and a second opening communicating with the second implant cavity, the second opening including a proximal portion and a distal portion, the proximal portion being unthreaded, the distal portion comprising a female thread, the first opening defining a first axis and the second opening defining a second axis, the second axis being disposed in a non-parallel orientation relative to the first axis such that the second opening is angled toward the first opening and the second axis is inclined toward the first axis, a portion of the end of the extension that defines the second implant cavity extending perpendicular to the first axis;
a first setscrew threaded with the threads defined by the inner surfaces of the arms such that the first setscrew is coaxial with the first axis; and
a second setscrew threaded with the female thread such that the second setscrew is c

Assignees

• Warsaw Orthopedic Inc

Inventors

• Mcbride Jr Larry T
• Wilfong Bret M
• Italiaie Christel

Classifications

• A61B17/7049 Primary

  Connectors, not bearing on the vertebrae, for linking longitudinal elements together (A61B17/7055, A61B17/7053, A61B17/7019 take precedence) · CPC title

• A61B17/7034

  characterised by a lateral opening · CPC title

• A61B17/7056

  Hooks with specially-designed bone-contacting part · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B17/7032 Primary

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