Laterally insertable artificial vertebral disk replacement implant with translating pivot point
First Claim
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1. An intervertebral implant comprising:
- a first end plate with a first inner surface;
a second end plate with a second inner surface opposing the first inner surface, where the second inner surface has an articulating element formed thereon; and
an attachment mechanism adapted to engage a vertebral body, wherein the attachment mechanism is adapted to extend, when implanted, along a lateral direction with respect to the vertebral body.
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Abstract
An implant that can be placed between two vertebrae using a lateral insertion method is described. The implant is characterized by having a first end plate and a second end plate with a hemi-cylindrical spacer extending from the second end plate. The hemi-cylindrical spacer fits within a socket on the first end plate and allows for pivotal or rotational motion and also for twisting motion.
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Citations
27 Claims
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1. An intervertebral implant comprising:
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a first end plate with a first inner surface;
a second end plate with a second inner surface opposing the first inner surface, where the second inner surface has an articulating element formed thereon; and
an attachment mechanism adapted to engage a vertebral body, wherein the attachment mechanism is adapted to extend, when implanted, along a lateral direction with respect to the vertebral body. - View Dependent Claims (2, 3, 4, 5)
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6. An intervertebral implant comprising:
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a first end plate adapted to mate with a first vertebral body further comprising;
a first inner surface;
a first outer surface; and
at least one keel on the first outer surface, wherein the keel is adapted to be perpendicular to a sagittal plane of the first vertebral body when implanted thereto;
a second end plate adapted to mate with a second vertebral body further comprising;
a second inner surface opposing the first inner surface, wherein the second inner surface has a spacer coupled thereto; and
a second outer surface. - View Dependent Claims (7, 8, 9, 10)
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11. An intervertebral implant comprising:
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a first end plate adapted to mate with a first vertebral body further comprising;
a first inner surface;
a first outer surface; and
at least one keel on the first outer surface, where the keel is adapted to be perpendicular to the sagittal plane of the vertebrae when implanted thereto;
a second end plate adapted to mate a second vertebrae, comprising;
a second inner surface opposing the first inner surface, where the second inner surface has extending spacer therefrom;
a second outer surface; and
at least one keel on the second outer surface, where the keel is adapted to be perpendicular to the sagittal plane of the vertebral body when implanted thereto. - View Dependent Claims (12, 13, 14)
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- 15. An interspinous disk replacement implant adatped to be inserted between adjacent vertebral bodies, the implant having a first end plate, a second end plate, and an articulating element formed on the second end plate, the improvement comprising the implant having at least one keel that is about perpendicular to the sagittal plane of a vertebral body.
- 17. An interspinous disk replacement implant adapted to be inserted between adjacent vertebral bodies, the implant having an articulating unit with a first end plate having a first inner surface with a first socket therein, a second end plate having a second inner surface opposing the first inner surface, the second inner surface with an articulating element formed thereon, where the articulating element is at least partially received in the first socket, the improvement of the implant comprising the implant having at least one keel extending from the articulating unit that is about perpendicular to the sagittal plane of a vertebral body.
- 19. An interspinous disk replacement implant having a first end plate, a second end plate, and an articulating element between formed on the second end plate, the improvement comprising the implant having an attachment mechanism that supports the articulating element, the attachment mechanism adapted to laterally engage an adjacent vertebrae.
- 22. An interspinous disk replacement implant having an articulating unit with a first end plate having a first inner surface with a first socket therein, a second end plate having a second inner surface opposing the first inner surface, the second inner surface with an articulating element formed thereon, where the articulating element is at least partially received in the first socket, the improvement of the implant comprising the implant having an attachment mechanism is aligned with and supports the articulating element, the attachment mechanism adapted to laterally engage an adjacent vertebrae.
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25. A kit to insert an interspinous disk replacement implant in a spine, the kit comprising:
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an interspinous disk replacement implant adapted for lateral insertion into the spine; and
at least one tool for preparing the spine to receive the implant.
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26. An interspinious implant comprising:
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a first end plate having a first anterior end, a first posterior end and two first lateral ends extending between the first anterior and posterior ends;
a second end plate having a second anterior end, a second posterior end and two second lateral ends extending between the second anterior and posterior ends;
a spacer extending from the second end plate, the spacer having an elongated hemi-cylindrical configuration;
a first keel protruding from a first outer surface of the first end plate, wherein the first keel is oriented lengthwise between the two first lateral ends; and
a second keel protruding from a second outer surface of the second end plate, wherein the second keel is oriented lengthweise between the two second lateral ends.
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27. An interspinous implant adapted to be inserted between adjacent vertebral bodies comprising:
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an implant body having a first outer surface adapted to mate with a first vertebral body and a second outer surface adapted to mate with a second vertebral body;
an articulating element within the implant body, the articulating element having an elongated spacer and corresponding elongated socket;
a first keel protruding from the first outer surface and oriented generally parallel to the articulating element.
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Specification