Spinal fusion interbody spacer
First Claim
1. A spinal fusion interbody spacer comprising:
- a) a body having superior and inferior abutment surfaces sized and shaped to be adapted to abut against adjacent spaced vertebrae;
b) said body having concave lateral side surfaces; and
c) at least one side channel extending between said inferior and superior abutment surfaces and opening laterally onto each lateral side surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A convex spinal fusion interbody space device includes spaced apart superior and inferior abutment surfaces which are effectively medially convex. The peak of such convexity is displaced anteriorly of a central plane through the device. The spacer device has front to rear lateral concave surfaces and top to bottom lateral side channels that intersect with said convex surfaces. The spacer device has a height which is greater than the width of the device. The spacer device is implanted between a pair of adjacent vertebrae by insertion in a tipped-over orientation and then reoriented to an upright orientation for engagement by facing surfaces of the vertebrae. Fusion promoting bone material is packed between the vertebrae and about the spacer device subsequent to implantation.
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Citations
20 Claims
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1. A spinal fusion interbody spacer comprising:
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a) a body having superior and inferior abutment surfaces sized and shaped to be adapted to abut against adjacent spaced vertebrae; b) said body having concave lateral side surfaces; and c) at least one side channel extending between said inferior and superior abutment surfaces and opening laterally onto each lateral side surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In an interbody spacer having a body with superior and inferior surfaces and a pair of lateral side surfaces;
- the improvement comprising;
a) each of said lateral side surfaces being concave and at least one side channel for each side surface extending between said inferior and superior surfaces and opening laterally outward onto respective side surfaces;
each side channel opening laterally outward along the entire length thereof. - View Dependent Claims (12, 13, 14, 15, 16)
- the improvement comprising;
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17. A method of providing intervertebral support for a patient comprising the steps of:
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a) providing a vertebral spacer having concave lateral side surfaces and being sized and shaped to be positioned between a pair of vertebrae; b) placing at least one lateral side channel on each lateral side of said spacer so as to intersect with said concave lateral side surfaces wherein each said side channel runs from the top to the bottom of the spacer and opens laterally outward along the entire length of said side channel; c) placing said spacer between a pair of vertebrae; and d) allowing bone growth through said side channels to promote spacer stability.
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18. A spinal fusion interbody spacer comprising:
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a) a body having superior and inferior abutment surfaces sized and shaped to be adapted to abut against adjacent spaced vertebrae; b) said body having lateral side surfaces;
said side surfaces are arced and concave having a central axis extending from front to rear; andc) at least one side channel extending between said inferior and superior abutment surfaces and opening laterally onto each lateral side surface.
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19. A spinal fusion interbody spacer comprising:
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a) a body having superior and inferior abutment surfaces sized and shaped to be adapted to abut against adjacent spaced vertebrae; b) said body having lateral side surfaces; and c) at least one side channel extending between said inferior and superior abutment surfaces and opening laterally onto each lateral side surface;
each of said side channels being curved at an innermost end thereof so as to have a radius of curvature extending between the inferior and superior abutment surfaces.
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20. A spinal fusion interbody spacer comprising:
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a) a body having superior and inferior abutment surfaces sized and shaped to be adapted to abut against adjacent spaced vertebrae; b) said body having at least one concave lateral side surface; and c) at least one side channel extending between said inferior and superior abutment surfaces and opening laterally onto said lateral side surface.
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Specification