Intervertebral spacer having a flexible wire mesh vertebral body contact element
First Claim
1. An intervertebral spacer having an osteoinductive securing surface element the intervertebral spacer comprising:
- a spacer body, said spacer body comprising at least one vertebral body contact element for securably mating with a concave surface of an adjacent vertebral body endplate;
said vertebral body contact element comprising a flexible wire mesh;
said flexible wire mesh being deformably reshapable under anatomical loads such that said flexible wire mesh conformably deflects within said concave surface to securably engage said vertebral body endplate;
said flexible wire mesh having a side facing outwardly away from the spacer body and a side facing inwardly toward the spacer body;
said flexible wire mesh further having a periphery and being secured the periphery to the spacer body such that a central portion of the flexible wire mesh is domed away from the spacer body such that a spacer exits between the spacer body and the side facing inwardly toward the spacer body at the central position.
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Accused Products
Abstract
A porous intervertebral spacer having a flexible wire mesh as a vertebral body contact surface, the flexible wire mesh preferably being a convex titanium mesh laser-welded at its perimeter to the spacer. The mesh is domed in its initial undeflected conformation, but deflects as necessary during insertion of the spacer between vertebral bodies, and, once the spacer is seated between the vertebral bodies, deforms as necessary under anatomical loads to reshape itself to the concave surface of the vertebral endplate, providing gripping and holding strength upon initial implantation, and an osteoinductive surface through which the bone may ultimately grow, making the fixation of the spacer between the vertebral bodies secure.
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Citations
13 Claims
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1. An intervertebral spacer having an osteoinductive securing surface element the intervertebral spacer comprising:
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a spacer body, said spacer body comprising at least one vertebral body contact element for securably mating with a concave surface of an adjacent vertebral body endplate;
said vertebral body contact element comprising a flexible wire mesh;
said flexible wire mesh being deformably reshapable under anatomical loads such that said flexible wire mesh conformably deflects within said concave surface to securably engage said vertebral body endplate;
said flexible wire mesh having a side facing outwardly away from the spacer body and a side facing inwardly toward the spacer body;
said flexible wire mesh further having a periphery and being secured the periphery to the spacer body such that a central portion of the flexible wire mesh is domed away from the spacer body such that a spacer exits between the spacer body and the side facing inwardly toward the spacer body at the central position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification