Spinal cage having deployable member
First Claim
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1. A spin-plate, comprising:
- a first blade having a first portion, said first portion of said first blade having a proximal end and a distal end; and
an elongated shaft, wherein said proximal end of said first blade is coupled to said elongated shaft at a first position and said distal end of said first blade is spaced away from said elongated shaft in a first radial direction, said elongated shaft having an axis of rotation, at least a portion of said elongated shaft being cylindrical, said first blade disposed in a plane at said first position that is transverse to said axis of rotation;
wherein said elongated shaft comprises a first end and a second end and an external circumferential surface and at least a first pair of flat surfaces parallel to said axis of rotation, wherein said pair of flat surfaces are disposed on said external circumferential surface on said first end of said elongated shaft;
wherein said spin-plate is sized to fit inside a spinal cage;
wherein said elongated shaft further comprises a second pair of flat surfaces; and
wherein said first pair of flat surfaces are substantially parallel to one another and define a first width therebetween and said second pair of flat surfaces are substantially parallel to one another and define a second width therebetween, wherein said first width and said second width are unequal.
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Abstract
A spinal cage with a wall extending in a longitudinal direction defining an interior space is disclosed. There is also provided a deployable element in movable relation to the spinal cage.
265 Citations
17 Claims
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1. A spin-plate, comprising:
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a first blade having a first portion, said first portion of said first blade having a proximal end and a distal end; and an elongated shaft, wherein said proximal end of said first blade is coupled to said elongated shaft at a first position and said distal end of said first blade is spaced away from said elongated shaft in a first radial direction, said elongated shaft having an axis of rotation, at least a portion of said elongated shaft being cylindrical, said first blade disposed in a plane at said first position that is transverse to said axis of rotation; wherein said elongated shaft comprises a first end and a second end and an external circumferential surface and at least a first pair of flat surfaces parallel to said axis of rotation, wherein said pair of flat surfaces are disposed on said external circumferential surface on said first end of said elongated shaft; wherein said spin-plate is sized to fit inside a spinal cage; wherein said elongated shaft further comprises a second pair of flat surfaces; and wherein said first pair of flat surfaces are substantially parallel to one another and define a first width therebetween and said second pair of flat surfaces are substantially parallel to one another and define a second width therebetween, wherein said first width and said second width are unequal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A spin-plate, comprising:
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a shaft, said shaft having an axis of rotation; one or more flat blades, at least one blade projecting outwardly from said shaft in a radial direction, said at least one blade disposed in a plane that is transverse to said axis of rotation, said at least one blade having in at least some places a greater radial dimension than said shaft; and a disc, said disc being attached to or integral with said shaft, said disc having in at least some places a greater radial dimension than said shaft; wherein said disc has an outer edge surface that is tapered with respect to said axis of rotation; and wherein said disc has a perimeter with at least two local radial peaks, wherein said local radial peaks are at angular locations, as measured with respect to rotation about said axis of rotation, that are non-uniformly distributed. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification