In-situ formed intervertebral fusion device and method
First Claim
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1. A spinal fusion implant comprising:
- a first component having a groove formed therein and having an upper bone contacting surface;
a second component having a ridge extending therefrom and having a lower bone contacting surface; and
first and second ramped surfaces adapted to slide along one another to progressively increase a distance between the upper and lower bone contacting surfaces and thereby distract a disc space in which the spinal fusion implant is disposed;
wherein the ridge is slidably received within the groove to guide relative movement of the first and second components as the first and second ramped surfaces slide along one another.
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Abstract
An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon.
In some embodiments, the balloon has a footprint that substantially corresponds to a perimeter of a vertebral endplate. An inflatable device is inserted through a cannula into an intervertebral space and oriented so that, upon expansion, a natural angle between vertebrae will be at least partially restored. At least one component selected from the group consisting of a load-bearing component and an osteobiologic component is directed into the inflatable device through a fluid communication means.
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Citations
7 Claims
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1. A spinal fusion implant comprising:
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a first component having a groove formed therein and having an upper bone contacting surface; a second component having a ridge extending therefrom and having a lower bone contacting surface; and first and second ramped surfaces adapted to slide along one another to progressively increase a distance between the upper and lower bone contacting surfaces and thereby distract a disc space in which the spinal fusion implant is disposed; wherein the ridge is slidably received within the groove to guide relative movement of the first and second components as the first and second ramped surfaces slide along one another. - View Dependent Claims (2, 3, 4)
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5. A spinal fusion method, comprising:
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positioning an implant in a disc space defined between an upper vertebra and a lower vertebra, the implant comprising (i) a first component having a groove formed therein and having an upper bone contacting surface that contacts the upper vertebra, (ii) a second component having a ridge extending therefrom and having a lower bone contacting surface that contacts the lower vertebra, and (iii) first and second ramped surfaces, the implant being positioned such that the ridge is slidably received within the groove; and sliding the first and second ramped surfaces along one another to progressively increase a distance between the upper and lower bone contacting surfaces and thereby distract the disc space; wherein the ridge and the groove guide relative movement of the first and second components as the first and second ramped surfaces slide along one another. - View Dependent Claims (6, 7)
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Specification