Expandable spinal implant
First Claim
Patent Images
1. An expandable spinal implant, comprising:
- a body having a longitudinal axis and an overall length, height and width, said body including a plurality of movable portions extending along said longitudinal axis and cooperating to define a non-threaded outer transverse cross section along said overall length and having a first transverse dimension along said height and a second transverse dimension along said width, said movable portions defining first and second substantially planar outer surfaces disposed generally opposite one another and extending substantially entirely across said width and adapted to engage adjacent vertebral bodies; and
an expansion member co-acting with said movable portions to expand said outer transverse cross section along each of said first and second transverse dimensions.
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Abstract
An expandable spinal implant including a body having a plurality of movable portions cooperating to define an outer cross section having first and second transverse dimensions and first and second substantially planar surfaces disposed generally opposite one another and adapted to engage adjacent vertebral bodies. An expansion member co-acts with the movable portions to expand the body along each of the first and second transverse dimensions.
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Citations
49 Claims
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1. An expandable spinal implant, comprising:
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a body having a longitudinal axis and an overall length, height and width, said body including a plurality of movable portions extending along said longitudinal axis and cooperating to define a non-threaded outer transverse cross section along said overall length and having a first transverse dimension along said height and a second transverse dimension along said width, said movable portions defining first and second substantially planar outer surfaces disposed generally opposite one another and extending substantially entirely across said width and adapted to engage adjacent vertebral bodies; and an expansion member co-acting with said movable portions to expand said outer transverse cross section along each of said first and second transverse dimensions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An expandable spinal implant, comprising:
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a body having a longitudinal axis and an overall length, height and width, said body including a plurality of movable portions extending along said longitudinal axis and cooperating to define a generally rectangular, non-threaded outer transverse cross section along said overall length, said body having a first transverse dimension along said height and a second transverse dimension along said width; and an expansion member co-acting with said plurality of movable portions to expand said outer transverse cross section along each of said first and second transverse dimensions. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. An expandable spinal implant, comprising:
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a body having a longitudinal axis and an overall length, height and width, said body including and a plurality of movable portions cooperating to define an outer cross section having a first transverse dimension along said height and a second transverse dimension along said width, said movable portions having substantially planar inner surfaces that cooperate to define an inner chamber having a substantially rectangular inner transverse cross section along said overall length, said inner surfaces defining an inward taper along said longitudinal axis; and an expansion member having a substantially rectangular outer transverse cross section and including substantially planar outer surfaces that engage said substantially planar inner surfaces of said movable portions to expand said movable portions along each of said first and second transverse dimensions as said expansion member is displaced generally along said longitudinal axis. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
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49. An expandable spinal implant, comprising:
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a body having a longitudinal axis and an overall length, height and width, said body including a plurality of movable portions extending along said longitudinal axis and cooperating to define a non-threaded outer transverse cross section along said overall length and having a first transverse dimension along said height and a second transverse dimension along said width, said movable portions defining first and second substantially planar outer surfaces disposed generally opposite one another and extending substantially entirely across said width and adapted to engage adjacent vertebral bodies; and means for expanding said outer transverse cross section along said first and second transverse dimensions.
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Specification