Orthopedic distraction implants and techniques
First Claim
Patent Images
1. An implant for treatment of a curved spinal column segment, comprising:
- a body including first and second ends along a longitudinal axis spaced by a length sized for attachment to respective ones of first and second vertebrae along surfaces of the first and second vertebrae comprising a concavely curved surface of the spinal column segment, said body being structured with said length further sized so that said body maintains separation of the first and second vertebrae when attached to the first and second vertebrae to distract the spinal column segment along the concavely curved surface toward a straightened configuration while permitting motion of the spinal column segment when attached to the first and second vertebrae, wherein said body further includes a medial axis orthogonally oriented to said longitudinal axis between said first and second ends, and said body tapers in width from said medial axis toward each of said first and second ends, and wherein said body includes a height between a lower surface and an upper surface thereof, said height tapering from said medial axis toward each of said first and second ends.
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Abstract
An implant for stabilizing a bony segment includes a flexible body sized and shaped to extend intravertebrally between at least first and second bony portions. In use the body is attachable intravertebrally to each of the first and second bony portions to distract each of the first and second bony portions while allowing motion between each of the first and second bony portions.
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Citations
36 Claims
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1. An implant for treatment of a curved spinal column segment, comprising:
a body including first and second ends along a longitudinal axis spaced by a length sized for attachment to respective ones of first and second vertebrae along surfaces of the first and second vertebrae comprising a concavely curved surface of the spinal column segment, said body being structured with said length further sized so that said body maintains separation of the first and second vertebrae when attached to the first and second vertebrae to distract the spinal column segment along the concavely curved surface toward a straightened configuration while permitting motion of the spinal column segment when attached to the first and second vertebrae, wherein said body further includes a medial axis orthogonally oriented to said longitudinal axis between said first and second ends, and said body tapers in width from said medial axis toward each of said first and second ends, and wherein said body includes a height between a lower surface and an upper surface thereof, said height tapering from said medial axis toward each of said first and second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implant for treatment of a curved spinal column segment, comprising:
a body including first and second ends along a longitudinal axis, said first and second ends attachable to respective ones of first and second vertebrae along surfaces of the first and second vertebrae comprising a concavely curved surface of the spinal column segment, wherein said body further includes a medial axis orthogonally oriented to said longitudinal axis between said first and second ends, said body tapering in width from said medial axis toward each of said first and second ends and said body further includes a height between a lower surface and an upper surface thereof with said height tapering from said medial axis toward each of said first and second ends, whereby said body is structured to distract the spinal column segment along the concavely curved surface toward a straightened configuration while permitting motion of the spinal column segment when attached to the first and second vertebrae. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. An implant for distracting first and second vertebrae of a spinal column segment, comprising:
a body with a length along a longitudinal axis, said body including a first condition and a second condition, said body being implantable between the first and second vertebrae in said second condition with said length extending between the first and second vertebrae, said body including means for reforming from said second condition to said first condition when implanted to exert a distractive force between the first and second vertebrae and permit relative motion between the first and second vertebrae, wherein said body includes an enlarged mid-portion and a stiffness that varies along said length and increases toward a medial axis of said body and said enlarged mid-portion includes a pyramidal shape. - View Dependent Claims (26, 27, 28, 29)
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30. An implant for distracting first and second vertebrae of a spinal column segment, comprising:
a body with a length along a longitudinal axis, said body including a first condition and a second condition, said body being implantable between the first and second vertebrae in said second condition with said length extending between the first and second vertebrae, said body including means for reforming from said second condition to said first condition when implanted to exert a distractive force between the first and second vertebrae and permit relative motion between the first and second vertebrae, wherein said body includes an enlarged mid-portion and a stiffness that varies along said length and increases toward a medial axis of said body, wherein said body further includes a lower surface positionable adjacent the first and second vertebrae and a base portion along said lower surface having a substantially constant thickness along said body, said body further including an upper portion extending from said base portion and including said enlarged mid-portion, said upper portion including a thickness between said base portion and an upper surface of said body, said thickness varying along a length of said upper portion of said body. - View Dependent Claims (31, 32, 33, 34, 35, 36)
Specification