Intervertebral spacer device having an engagement hole for manipulation using a surgical tool

• US 20040148027A1
• Filed: 09/16/2003
• Published: 07/29/2004
• Est. Priority Date: 07/16/2001
• Status: Active Grant

• Current Assignee: Joseph P. Errico, Michael W. Dudasik, Rafail Zubok
• Original Assignee: Spinecore, Inc. (Stryker Corporation)
• Inventors: Zubok, Rafail, Errico, Joseph P., Dudasik, Michael W.
• Granted Patent: US 7,811,287 B2
• Time in Patent Office: Days
• US Class Current: 623/17.11
• CPC Class Codes: A61F 2/4425 made of articulated components
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2/4684 Trial or dummy prostheses
• CPC Class Codes: A61F 2002/30785 parallel
• CPC Class Codes: A61F 2002/30841 Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
• CPC Class Codes: A61F 2002/443 having two transversal endplates and at least one intermediate component
• CPC Class Codes: A61F 2002/4619 for extraction
• 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 2002/4628 with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
• CPC Class Codes: A61F 2002/4658 for measuring dimensions, e.g. length
• CPC Class Codes: Y10S 606/914 Toolkit for installing or removing spinal positioner or stabilizer

Abstract

Instrumentation for implanting an artificial intervertebral disc includes static trials and a dynamic trial for determining the appropriate size of disc to be implanted, static trial holders for manipulating the static trials, inserter/impactors for inserting and removing the static trials and for inserting the artificial intervertebral discs, repositioners/extractors for repositioning and extracting the static trials or the artificial intervertebral discs, and a leveler for setting the proper position of the artificial intervertebral disc. Methods for using the same are also disclosed. Features for artificial intervertebral discs and intervertebral spacer devices useful for manipulation by the instrumentation are also disclosed.

Claims

1. A spinal orthopedic device and tool set, comprising

an intervertebral spacer device having first and second baseplates mounted to one another such that the first and second baseplates are articulatable relative to one another, wherein at least one of the baseplates has at least one engagement hole on a perimetrical region of the at least one of the baseplates;

and

a manipulation tool having a distal end supporting an extendible and retractable post that when extended is engageable with the engagement hole and when retracted while so engaged holds the baseplate against the manipulation tool, such that the at least one of the baseplates is manipulatable using the manipulation tool.

2. The spinal orthopedic device and tool set of claim 1, wherein the at least one of the baseplates has a plurality of engagement holes and the post is engageable with any of the plurality of engagement holes.

3. The spinal orthopedic device and tool set of claim 2, wherein each of the plurality of engagement holes is at a respective desired surgical approach aspect of the at least one of the baseplates.

4. The spinal orthopedic device and tool set of claim 3, wherein each baseplate has an inwardly facing surface and an outwardly facing surface;

and wherein the baseplates are mounted to one another such that the inwardly facing surfaces face one another and the outwardly facing surfaces face away from one another; and

wherein one of the inwardly facing surfaces has the plurality of engagement holes.

5. The spinal orthopedic device and tool set of claim 3, wherein one of the desired surgical approach aspects is an anterior aspect of the at least one of the baseplates.

6. The spinal orthopedic device and tool set of claim 3, wherein at least one of the desired surgical approach aspects is an antero-lateral aspect of the at least one of the baseplates.

7. The spinal orthopedic device and tool set of claim 1, wherein the at least one of the baseplates has three engagement holes and the post is engageable with any of the three of engagement holes.

8. The spinal orthopedic device and tool set of claim 7, wherein each of the three engagement holes is at a respective desired surgical approach aspect of the at least one of the baseplates.

9. The spinal orthopedic device and tool set of claim 8, wherein one of the desired surgical approach aspects is an anterior aspect of the at least one of the baseplates.

10. The spinal orthopedic device and tool set of claim 9, wherein each baseplate has an inwardly facing surface and an outwardly facing surface;

and wherein the baseplates are mounted to one another such that the inwardly facing surfaces face one another and the outwardly facing surfaces face away from one another; and

wherein one of the inwardly facing surfaces has the plurality of engagement holes.

11. The spinal orthopedic device and tool set of claim 9, wherein the other desired surgical approach aspects are a left antero-lateral aspect and a right antero-lateral aspect of the at least one of the baseplates.

12. The spinal orthopedic device and tool set of claim 1, wherein the at least one engagement hole has a longitudinal axis parallel to both an anterior-posterior plane and a medial-lateral plane of the intervertebral spacer device.