Artificial disc

• US 9,883,951 B2
• Filed: 08/28/2013
• Issued: 02/06/2018
• Est. Priority Date: 08/30/2012
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Interventional Spine, Inc (Johnson & Johnson)
• Inventors: Lopez, Rudolf Morgenstern
• Primary Examiner(s): Boles, Sameh
• Application Number:
  US14/424,412
• Publication Number:
  US 20150223948A1
• Time in Patent Office: 1,623 Days
• Field of Search: None
• CPC Class Codes: A61B 17/1659 Surgical rasps, files, planes, or scrapers
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/320004 abrasive
• CPC Class Codes: A61B 2017/320008 Scrapers
• CPC Class Codes: A61B 2017/3443 with means for adjusting the length of a cannula
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments catheters A61B2017/22072
• CPC Class Codes: A61F 2/4425 made of articulated components
• 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 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/30179 X-shaped
• CPC Class Codes: A61F 2002/30365 with additional means for limiting said rotation
• CPC Class Codes: A61F 2002/30565 having spring elements
• CPC Class Codes: A61F 2002/30579 with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2002/30617 Visible markings for adjusting, locating or measuring
• CPC Class Codes: A61F 2002/30784 Plurality of holes
• CPC Class Codes: A61F 2002/30827 Plurality of grooves
• CPC Class Codes: A61F 2002/30879 Ribs
• CPC Class Codes: A61F 2002/443 : having two transversal endplates and at least one intermediate component
• CPC Class Codes: A61F 2002/4627 : with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2220/0016 : with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0033 : made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Abstract

Intervertebral implants and methods of delivering the intervertebral implants include delivering an implant through the Kambin'"'"'s triangle from a posterolateral approach. The intervertebral implants can include a first body portion having an open configuration and a closed configuration. The intervertebral implants can also include a second body portion having an open configuration and a closed configuration. The first body portion removably connects to the second body portion.

Claims

1. A spinal implant comprising:

an upper body portion comprising a first upper surface and a second surface, the second surface of the upper body portion comprising a socket portion;

a lower body portion comprising a first surface and a second surface, the second surface of the lower body portion comprising a socket portion; and

a central body portion between the upper body portion and the lower body portion, the central body portion comprising a first surface and a second surface, each of the first and second surfaces of the central body portion comprising a ball portion, the ball portions of the central body portion being configured to interface with corresponding socket portions of the upper and lower body portions,

wherein the spinal implant is configured to transition from a reduced profile configuration to an increased profile configuration by inserting the central body portion between the upper and lower body portions, and

wherein the central body portion is generally perpendicular to the upper and lower body portions when the spinal implant is in the increased profile configuration.

2. The spinal implant of claim 1, wherein in the reduced profile configuration, the upper and lower body portions form an opening through which the central body portion can be inserted.

3. The spinal implant of claim 1, wherein the first surfaces of the upper and lower body portions are generally curved.

4. The spinal implant of claim 2, wherein the second surfaces of the upper and lower body portions are generally curved in a direction opposite the first surfaces of the upper and lower body portions.

5. The spinal implant of claim 1, wherein the first and second surfaces of the central body portion are generally curved in opposite directions.

6. The spinal implant of claim 1, wherein the upper and lower body portions comprise metal, and wherein the central body portion comprises a non-metal material.

7. The spinal implant of claim 1, wherein the socket portions extend through an entire thickness of their respective upper and lower body portions.

8. The spinal implant of claim 1, wherein the central body portion extends out with respect to opposed sides of each of the upper and lower body portions.

9. A spinal implant comprising:

an upper body portion comprising a first upper surface and a second surface, the second surface of the upper body portion comprising a notch;

a lower body portion comprising a first surface and a second surface, the second surface of the lower body portion comprising a notch; and

a one piece central body portion between the upper body portion and the lower body portion, the central body portion comprising an upper surface and a lower surface, each of the upper and lower surfaces of the central body portion comprising a notch, the notches of the central body portion being configured to interface with corresponding notches of the upper and lower body portions,

wherein the spinal implant is configured to transition from a reduced profile configuration to an increased profile configuration by inserting the central body portion between the upper and lower body portions, and

wherein the central body portion is generally perpendicular to the upper and lower body portions when the spinal implant is in the increased profile configuration.

10. The spinal implant of claim 9, wherein in the reduced profile configuration, the upper and lower body portions form an opening through which the central body portion can be inserted.

11. The spinal implant of claim 9, wherein the first surfaces of the upper and lower body portions are generally curved.

12. The spinal implant of claim 11, wherein the second surfaces of the upper and lower body portions are generally curved in a direction opposite the first surfaces of the upper and lower body portions.

13. The spinal implant of claim 9, wherein the upper and lower surfaces of the central body portion are generally curved in opposite directions.

14. The spinal implant of claim 9, wherein each of the notches of the upper and lower body portions comprises a socket portion, and wherein each of the notches of the central body portion comprises a ball portion, the ball portions configured to interface with the socket portions of the upper and lower body portions.

15. The spinal implant of claim 14, wherein the socket portions extend through an entire thickness of their respective upper and lower body portions.

16. The spinal implant of claim 9, wherein the upper and lower body portions comprise metal, and wherein the central body portion comprises a non-metal material.