Vertebral joint implants and delivery tools
First Claim
1. A system for distracting a facet joint of a spine via a posterior approach to the spine, the system comprising:
- a chisel comprising a shaft, a distal tip and a proximal end;
a delivery device comprising a receiving assembly at a proximal end, anchoring forks at a distal end, and a tubular shaft between the receiving assembly and the anchoring forks, wherein the delivery device tubular shaft is sized to slide over the shaft of the chisel;
a decorticator comprising a tubular shaft, an abrasive distal end and handle at a proximal end, wherein the decorticator tubular shaft is sized to slide over and rotationally around the delivery device tubular shaft;
a tool for tapping the proximal ends of the chisel and the delivery device to deliver the distal tip of the chisel and the anchoring forks of the delivery device into the facet joint;
a driver assembly comprising an implant shaft and implant holding arms; and
an implant removably mounted on the implant holding arms of the driver assembly for distracting the facet joint.
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Accused Products
Abstract
A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.
538 Citations
12 Claims
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1. A system for distracting a facet joint of a spine via a posterior approach to the spine, the system comprising:
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a chisel comprising a shaft, a distal tip and a proximal end; a delivery device comprising a receiving assembly at a proximal end, anchoring forks at a distal end, and a tubular shaft between the receiving assembly and the anchoring forks, wherein the delivery device tubular shaft is sized to slide over the shaft of the chisel; a decorticator comprising a tubular shaft, an abrasive distal end and handle at a proximal end, wherein the decorticator tubular shaft is sized to slide over and rotationally around the delivery device tubular shaft; a tool for tapping the proximal ends of the chisel and the delivery device to deliver the distal tip of the chisel and the anchoring forks of the delivery device into the facet joint; a driver assembly comprising an implant shaft and implant holding arms; and an implant removably mounted on the implant holding arms of the driver assembly for distracting the facet joint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification