Laterally insertable artificial vertebral disk replacement implant with crossbar spacer
First Claim
1. An intervertebral implant adapted to be inserted between adjacent vertebral bodies comprising:
- a. a first end plate adapted to mate with a first vertebral body, the first end plate further comprising;
i. a first inner surface;
ii. a first outer surface; and
iii. a first keel on the first outer surface, wherein the first keel is oriented substantially perpendicular to the sagittal plane of the vertebral bodies;
b. a second end plate having a second outer surface adapted to mate with a second vertebral body, the second end plate including a second inner surface opposed to the first inner surface; and
c. a crossbar spacer positioned between the first and second inner surfaces.
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Accused Products
Abstract
The present invention is directed to an implant that can be placed between two adjacent vertebral bodies using a lateral insertion method. The implant is characterized as having a first end plate and a second end plate which a crossbar spacer therebetween. The crossbar spacer preferably fits within a channel on the inner surfaces of the first end plate and the second end plate, whereby the crossbar spacer allows pivots, twisting and/or rotational movement of the spine. The first end plate and the second end plate include a keel extending therefrom, whereby the keel traverses longitudinally between a first lateral side and a second opposed lateral side and is substantially perpendicular to the sagittal plane of the patient'"'"'s spine.
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Citations
48 Claims
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1. An intervertebral implant adapted to be inserted between adjacent vertebral bodies comprising:
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a. a first end plate adapted to mate with a first vertebral body, the first end plate further comprising;
i. a first inner surface;
ii. a first outer surface; and
iii. a first keel on the first outer surface, wherein the first keel is oriented substantially perpendicular to the sagittal plane of the vertebral bodies;
b. a second end plate having a second outer surface adapted to mate with a second vertebral body, the second end plate including a second inner surface opposed to the first inner surface; and
c. a crossbar spacer positioned between the first and second inner surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implant adapted to be inserted between adjacent vertebral bodies, comprising:
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a. a first end plate having a first outer surface adapted to mate with a first vertebral body, the first end plate further comprising;
i. a first inner surface; and
ii. a first keel on the first outer surface, wherein the first keel is oriented substantially perpendicular to the sagittal plane of the vertebral bodies;
b. a second end plate having a second outer surface adapted to mate with a second vertebral body, the second end plate further comprising;
i. a second inner surface opposed to the first inner surface; and
ii. a second keel on the second outer surface, wherein the second keel is oriented substantially perpendicular to the sagittal plane of the vertebral bodies; and
c. a crossbar spacer in contact with the first and second inner surfaces. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An intervertebral implant adapted to be inserted between adjacent vertebral bodies comprising:
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a. an articulating unit further comprising;
i. an anterior end;
ii. a posterior end;
iii. a first lateral end; and
iv. a second lateral end;
b. a keel extending from the articulating unit and oriented in a lengthwise direction between the first and second lateral ends; and
c. a crossbar spacer positioned within the articulating unit. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An intervertebral implant comprising:
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a. an articulating unit adapted to be inserted between adjacent vertebral bodies, the articulating unit having a first channel therein;
b. a crossbar spacer in contact with the first channel, wherein the crossbar spacer and the first channel allow the articulating unit to rotate in association with flexion and extension of at least one of the vertebral bodies; and
c. a first keel adapted to mate with a vertebral body, the first keel extending from a first outer surface of the articulating unit and oriented to be substantially parallel with the first channel. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. An implant adapted to be inserted between adjacent vertebral bodies in a spine comprising:
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a. a first end plate having a first inner surface and a first keel on a first outer surface, wherein the first keel is oriented substantially parallel to the coronal plane of the spine;
b. a second end plate having a second inner surface opposed to the first inner surface and a second keel on a second outer surface, wherein the second keel is oriented substantially parallel to the first keel; and
c. a spacer having a first spacer member in contact with the first inner surface and a second spacer member in contact with the second inner surface and oriented perpendicular to the first spacer member.
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43. An implant adapted to be inserted into a spine comprising:
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a. a first end plate having a first outer surface adapted to be substantially in contact with an upper vertebral body;
b. a second end plate having a second outer surface adapted to be substantially in contact with a lower vertebral body;
c. a first keel protruding from the first outer surface and extending lengthwise between a first lateral end and a second lateral end of the first end plate; and
d. a second keel protruding from the second outer surface and oriented to be substantially parallel to the first keel.
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44. An implant adapted to be inserted between adjacent vertebral bodies in a spine, the implant comprising:
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a. an articulating unit having an outer surface adapted to be substantially in contact with a vertebral body;
b. a crossbar spacer positioned within the articulating unit, wherein the crossbar spacer allows at least a portion of the articulating unit to rotate in association with flexion and extension of at least one of the vertebral bodies; and
c. a keel extending from the outer surface of the articulating unit and oriented to extend lengthwise between a first lateral end and a second lateral end of the articulating unit.
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45. An implant adapted to be inserted between adjacent vertebral bodies in a spine, the implant comprising:
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a. an articulating unit having an outer surface adapted to be substantially in contact with a vertebral body, the articulating unit adapted to receive a crossbar spacer; and
b. a keel extending from the outer surface of the articulating unit and oriented to extend lengthwise between a first lateral end and a second lateral end of the unit.
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46. In an interspinous disk replacement implant, the improvement comprising:
- at least one keel adapted to be perpendicular to the sagittal plane of a spine when the implant is inserted into the spine.
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47. In an interspinous disk replacement implant in a spine, the improvement comprising:
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a. a crossbar spacer in contact with an inner surface the implant, wherein the crossbar spacer accommodates flexion and extension movement of the spine; and
b. a keel extending from an outer surface of the implant and adapted to be secured into a vertebral body, wherein the keel is approximately perpendicular to the sagittal plane of the spine.
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48. In an interspinous disk replacement implant, the improvement comprising:
- at least one keel extending from an outer surface of the implant from a first lateral side to a second lateral side, the at least one keel adapted to be insertable laterally into the spine.
Specification