Orthopedic stabilization devices and methods for installation thereof

• US 9,763,705 B2
• Filed: 10/03/2014
• Issued: 09/19/2017
• Est. Priority Date: 10/03/2014
• Status: Active Grant

• Current Assignee: Globus Medical, Inc.
• Original Assignee: Globus Medical, Inc.
• Inventors: Faulhaber, Kurt
• Primary Examiner(s): Hammond, Ellen C
• Assistant Examiner(s): BRAY, STUART SAMUEL
• Application Number:
  US14/505,563
• Publication Number:
  US 20160095712A1
• Time in Patent Office: 1,082 Days
• Field of Search: 606280-298, 623 1715
• CPC Class Codes: A61B 17/7032 Screws or hooks with U-shaped head or back through which longitudinal rods pass
• CPC Class Codes: A61B 17/7037 wherein pivoting is blocked when the rod is clamped
• CPC Class Codes: A61B 17/7043 with a longitudinal element fixed to one or more transverse elements which connect multiple screws or hooks
• CPC Class Codes: A61B 17/7047 Clamps comprising opposed elements which grasp one vertebra between them
• CPC Class Codes: A61B 17/7059 Cortical plates A61B17/7007, A61B17/7058 take precedence
• CPC Class Codes: A61B 17/7064 Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
• CPC Class Codes: A61B 17/7071 Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
• CPC Class Codes: A61F 2/4405 for apophyseal or facet joints, i.e. between adjacent spinous or transverse processes devices implanted between spinous or transverse processes A61B17/7062
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2/447 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
• CPC Class Codes: A61F 2002/30153 rectangular
• CPC Class Codes: A61F 2002/30471 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2002/30578 having apertures, e.g. for receiving fixation screws
• CPC Class Codes: A61F 2002/30593 hollow
• CPC Class Codes: A61F 2002/30733 Inserts placed into an endoprosthetic cavity, e.g. for modifying a material property
• CPC Class Codes: A61F 2002/30784 Plurality of holes
• CPC Class Codes: A61F 2002/3093 for promoting ingrowth of bone tissue
• CPC Class Codes: A61F 2310/00359 Bone or bony tissue

Abstract

Embodiments herein are generally directed to spinal implants for use in orthopedic stabilization assemblies. In some embodiments, these implants may be used in conjunction with laminoplasty or laminectomy procedures.

Claims

1. A spinal implant, comprising:

a first fixation section comprising a bottom surface configured to contact a first bone structure of a vertebral body;

a second fixation section comprising a bottom surface configured to contact a second bone structure of the vertebral body; and

a substantially rigid spacer section comprising a first and second spaced living hinges, the spacer section hingedly connected to the first and second fixation sections and configured for insertion between the first and second bone structures,

wherein the spacer section includes at least two openings for receiving bone growth material, the openings being positioned on opposite sides of the living hinge such that when the bottom surface of the first fixation section contacts the first bone structure of the vertebral body and the bottom surface of the second fixation section contacts the second bone structure of the vertebral body, the openings face each other.

2. The spinal implant of claim 1, wherein the spacer section comprises:

a first support wall hingedly connected to the first fixation section and comprising a bottom surface configured to contact the first bone structure;

a second support wall hingedly connected to the second fixation section and comprising a bottom surface configured to contact the second bone structure; and

a base wall hingedly connected to the first and second support walls.

3. The spinal implant of claim 2, wherein the spacer section further comprises:

a first end wall hingedly connected to the first support wall; and

a second end wall hingedly connected to the second support wall.

4. The spinal implant of claim 3, wherein the first end wall, second end wall, and base wall have equal widths.

5. The spinal implant of claim 1, wherein the spacer section is configured to form a cavity for receiving bone graft material.

6. The spinal implant of claim 1, wherein the first bone structure is a first section of a lamina.

7. The spinal implant of claim 1, wherein the second bone structure is a second section of the lamina.

8. The spinal implant of claim 1, wherein the spacer section is configured to fit between two sections of a lamina.

9. The spinal implant of claim 1, wherein the spacer section is configured to distract the first and second bone structures.

10. The spinal implant of claim 2, wherein at least one of the first and second support walls comprises a hole passing therethrough.

11. The spinal implant of claim 1, further comprising:

a first fixation member configured to anchor the first fixation section to the first bone structure; and

a second fixation member configured to anchor the second fixation section to the second bone structure.

12. The spinal implant of claim 11, wherein the first fixation section comprises a first receptacle for receiving the first fixation member and the second fixation section comprises a second receptacle for receiving the second fixation member.

13. The spinal implant of claim 11, wherein at least one of the first and second fixation members comprises a bone-engaging projectile.

14. The spinal implant of claim 1, wherein the first fixation section comprises a first fixation member and the second fixation section comprises a second fixation member.

15. A spinal implant comprising a foldable sheet, wherein the foldable sheet comprises:

a first fixation section configured to engage a first bone structure of an at least partially cut lamina of a vertebral body;

a second fixation section configured to engage a second bone structure of the at least partially cut lamina of the vertebral body;

a spacer section configured for insertion between the first and second bone structures;

a first living hinge separating the first fixation section from the spacer section; and

a second living hinge separating the second fixation section from the spacer section,

wherein the spacer section includes at least two openings for receiving bone growth material, the openings being positioned on opposite sides of the first living hinge such that when the first fixation section engages the first bone structure of the vertebral body and the second fixation section engages the second bone structure of the vertebral body, the openings face each other.

16. The spinal implant of claim 15, wherein each living hinge comprises a groove.

17. The spinal implant of claim 15, wherein the foldable sheet is a foldable polymeric sheet.

18. A spinal implant comprising a flat plate, wherein the flat plate comprises:

a first fixation section configured to engage a first bone structure of a lamina of a vertebral body;

a second fixation section configured to engage a second bone structure of the lamina of the vertebral body; and

a substantially rigid spacer section comprising a first and second spaced living hinges, the spacer section hingedly coupled to the first and second fixation sections and configured for insertion between the first and second bone structures,

wherein the spacer section includes at least two openings for receiving bone growth material, the openings being positioned on opposite sides of the first living hinge such that when the first fixation section engages the first bone structure of the vertebral body and the second fixation section engages the second bone structure of the vertebral body, the openings face each other.

19. The spinal implant of claim 18, wherein the flat plate is flexible.

20. The spinal implant of claim 18, wherein the flat plate comprises a plurality of elongate slots.