Composite spinal facet implant with textured surfaces
First Claim
1. A distal leading portion of a composite spinal implant for implantation in a spinal facet joint, the distal leading portion comprising:
- a distal leading end having a distal surface generally opposite a proximal surface of a proximal trailing end;
a first face having a first surface that is generally opposite a second surface of a second face, the first and second faces extending between the distal leading end and the proximal trailing end, the first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint; and
a first side having a first side surface generally opposite a second side having a second side surface, the first side surface and the second side surface each having a slot extending distally from the proximal surface,wherein the textured features include a ridge extending perpendicularly from each of the first and second surfaces along at least a portion of the length of the first and second surfaces, the ridge having a saw toothed profile defining a row of teeth, each tooth of the row of teeth having a leading distal face, a trailing proximal face, and a tip formed at an intersection between the leading distal face and the trailing proximal face, each tooth further including an inner surface generally opposite an outer surface, the outer surface is adjacent to a respective side surface of the first or second side and the inner surface is generally perpendicular to the first surface of the first face or the second surface of the second face.
3 Assignments
0 Petitions
Accused Products
Abstract
Implementations described and claimed herein provide a distal leading portion of a composite spinal implant for implantation in a spinal facet joint. In one implementation, the distal leading portion includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end, such that the first and second surfaces slope upwardly from the distal lead end to the proximal trailing end along a length of extending proximally. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint.
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Citations
20 Claims
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1. A distal leading portion of a composite spinal implant for implantation in a spinal facet joint, the distal leading portion comprising:
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a distal leading end having a distal surface generally opposite a proximal surface of a proximal trailing end; a first face having a first surface that is generally opposite a second surface of a second face, the first and second faces extending between the distal leading end and the proximal trailing end, the first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint; and a first side having a first side surface generally opposite a second side having a second side surface, the first side surface and the second side surface each having a slot extending distally from the proximal surface, wherein the textured features include a ridge extending perpendicularly from each of the first and second surfaces along at least a portion of the length of the first and second surfaces, the ridge having a saw toothed profile defining a row of teeth, each tooth of the row of teeth having a leading distal face, a trailing proximal face, and a tip formed at an intersection between the leading distal face and the trailing proximal face, each tooth further including an inner surface generally opposite an outer surface, the outer surface is adjacent to a respective side surface of the first or second side and the inner surface is generally perpendicular to the first surface of the first face or the second surface of the second face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 19, 20)
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16. A composite spinal implant for implantation in a spinal facet joint, the composite spinal implant comprising:
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a distal leading portion having a distal leading end, a first face, and a first side, the distal leading end having a distal surface generally opposite a proximal surface of a proximal trailing end, the first face having a first surface that is generally opposite a second surface of a second face, the first and second faces extending between the distal leading end and the proximal trailing end, the first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint, the first side having a first side surface generally opposite a second side having a second side surface; and a proximal trailing anchor portion having a body and an anchor, the body having a distal leading end generally opposite a proximal trailing end, a first face generally opposite a second face, and a first side generally opposite a second side, the anchor being supported in the body and configured to extend at least one of outwardly from the body or outwardly and distally from the body, the distal leading end of the body adapted to abut the proximal trailing end of the distal leading portion to form the composite spinal implant, wherein the textured features include a ridge extending perpendicularly from each of the first and second surfaces along at least a portion of the length of the first and second surfaces, the ridge having a saw toothed profile defining a row of teeth, each tooth of the row of teeth having a leading distal face, a trailing proximal face, and a tip formed at an intersection between the leading distal face and the trailing proximal face, each tooth further including an inner surface generally opposite an outer surface, the outer surface is adjacent to a respective side surface of the first or second side and the inner surface is generally perpendicular to the first surface of the first face or the second surface of the second face. - View Dependent Claims (17, 18)
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Specification