IN-SITU FORMED INTERVERTEBRAL FUSION DEVICE AND METHOD
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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.
47 Citations
28 Claims
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1. (canceled)
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2. An intervertebral fusion device, comprising:
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a) an implant having a proximal end portion and a free distal end portion, the implant disposed in a curved shape in which the free distal end portion is disposed adjacent to the proximal end portion, the curved shape defining a central cavity that is external to the implant; and b) an osteobiologic component contained in the central cavity; wherein the implant is deformable into a relatively elongated shape for delivery to a disc space through a cannula, wherein the proximal end portion is not adjacent to the free distal end portion when the implant is in the relatively elongated shape. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24)
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10. A method of making an intervertebral fusion device, comprising:
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a) inserting a cannula into an intervertebral disc space between upper and lower vertebral endplates; b) passing an implant through the cannula and into the disc space, the implant having a proximal end portion and a free distal end portion, the implant assuming a substantially linear shape in which the free distal end portion is not adjacent to the proximal end portion as it passes through the cannula; c) forming the implant into a curved shape in the intervertebral disc space by positioning the free distal end portion adjacent to the proximal end portion, the curved shape defining a central cavity that is external to the implant; and d) inserting an osteobiologic component into the central cavity of the implant such that the osteobiologic component contacts an inner wall of the implant and the upper and lower vertebral endplates. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 25, 26, 27, 28)
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Specification