FACET JOINT IMPLANTS AND DELIVERY TOOLS

• US 20190209151A1
• Filed: 11/01/2018
• Published: 07/11/2019
• Est. Priority Date: 06/06/2008
• Status: Active Grant

• Current Assignee: Providence Medical Technology, Inc.
• Original Assignee: Providence Medical Technology, Inc.
• Inventors: McCormack, Bruce M., Smith, Jeffrey D.
• Granted Patent: US 11,141,144 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 17/025 Joint distractors
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/1604 Chisels; Rongeurs; Punches; Stamps
• 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 17/1735 for rasps or chisels
• CPC Class Codes: A61B 17/1757 for the spine
• CPC Class Codes: A61B 17/7044 also having plates, staples or washers bearing on the vertebrae
• 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 17/8004 with means for distracting or compressing the bone or bones
• CPC Class Codes: A61B 17/8625 Shanks, i.e. parts contacting bone tissue
• CPC Class Codes: A61B 2017/0256 for the spine
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter

Abstract

A spinal joint distraction system is disclosed and may include a driver assembly with a tubular shaft, a pair of implant holder arms, an implant distractor, an internal actuator, and a distractor knob, the system also including a delivery device with a tubular shaft, a receiving assembly, and a pair of forks, where the delivery device is adapted for slidable insertion of the driver assembly, the system also including an implant, a chisel, and an injector. Several embodiments of an implant are disclosed as well a method of placing an implant.

Claims

1. (canceled)

2. A spinal joint distraction system, comprising:

a delivery device comprising;

a tubular shaft; and

a pair of tines extending from a distal portion of the tubular shaft, the tines adapted to penetrate a facet joint; and

a driver assembly comprising;

an elongated shaft; and

first and second implant engagement portions on a distal portion of the elongated shaft, each implant engagement portion adapted to engage at least one portion of a spinal implant,

wherein, at least a portion of the driver assembly is adapted to be received the tubular shaft of the delivery device.

3. The spinal joint distraction system of claim 2 further comprising a chisel including a shaft having a proximal portion and a distal portion opposite the proximal portion, the distal portion including a tip.

4. The spinal joint distraction system of claim 3 wherein the tip of the chisel is a single or doubly chamfered tip.

5. The spinal joint distraction system of claim 3 wherein the shaft of the chisel is adapted to be received within the tubular shaft of the delivery device.

6. The spinal joint distraction system of claim 2 further comprising a decorticator comprising a shaft portion having a distal portion with an abrasive distal end.

7. The spinal joint distraction system of claim 6 wherein the abrasive distal end of the distal portion of the shaft portion of the decorticator includes a plurality of teeth.

8. The spinal joint distraction system of claim 6 wherein at least the shaft portion of the decorticator is adapted to be received by the delivery device.

9. The spinal joint distraction system of claim 2 further comprising an implant received by the implant engagement portions.

10. The spinal joint distraction system of claim 9, the implant further comprising a first surface opposite a second surface, each of the first and second surfaces including teeth.

11. The spinal joint distraction system of claim 2, wherein the facet joint is a cervical facet joint.

12. A method of using the system of claim 2 to distract a spinal joint.

13. The method of claim 12, wherein the spinal joint is a cervical spinal joint.

14. A spinal joint distraction system, comprising:

a delivery device comprising;

a shaft defining a lumen; and

a pair of tines extending from a distal portion of the shaft, the tines adapted to penetrate a facet joint; and

a driver assembly comprising;

an elongated shaft; and

first and second implant engagement portions on a distal portion of the elongated shaft, each implant engagement portion adapted to engage at least a portion of a spinal implant,

wherein, at least a portion of the driver assembly is adapted to be received in the lumen of the delivery device.

15. The spinal joint distraction system of claim 14 further comprising a chisel.

16. The spinal joint distraction system of claim 14 further comprising a decorticator.

17. The spinal joint distraction system of claim 14, wherein the facet joint is a cervical facet joint.