EXPANDABLE INTERVERTEBRAL IMPLANT SYSTEM AND METHOD
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0 Petitions
Accused Products
Abstract
An artificial functional spinal unit including an expandable intervertebral implant that can be inserted via a posterior surgical approach and used with one or more facet replacement devices to provide an anatomically correct range of motion is described. Lordotic and non-lordotic expandable, articulating implants and cages are described, along with embodiments of facet replacement devices and instruments for insertion. Methods of insertion are also described.
236 Citations
202 Claims
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1-157. -157. (canceled)
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158. An intervertebral implant system for a human spine, comprising:
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a first body comprising; a first external surface configured to be disposed adjacent a first vertebrae during use, and a first internal surface opposite the first external surface; a second body comprising; a second external surface configured to be disposed adjacent a second vertebrae during use, and a second internal surface opposite the second external surface; an elongated insertion instrument releasably coupleable to the first or second body during use; and a spacer linearly advanced between the first internal surface of the first body and the first internal surface of the second body during use, wherein the elongated insertion instrument guides at least a portion of the linear advancement of the spacer, and wherein the linear advancement of the spacer results in expansion of the intervertebral implant such that the first external surface and the second external surface move away from one another to expand a height of the implant. - View Dependent Claims (159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 170, 200)
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169. (canceled)
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171. (canceled)
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172. A method of implanting an intervertebral implant into a human spine, comprising:
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disposing an upper body into an intervertebral space between an upper vertebrae and a lower vertebrae, wherein the upper body comprises; a superior surface disposed adjacent the upper vertebrae, and an inferior surface opposite the superior surface; disposing a lower body into the intervertebral space between the upper vertebrae and the lower vertebrae, wherein the lower body comprises; an inferior surface disposed adjacent the lower vertebrae, and a superior surface opposite the inferior surface; releasably coupling an elongated insertion instrument to at least one of the upper body and the lower body; and linearly advancing a spacer between the inferior surface of the upper body and the superior surface of the lower body, wherein the elongated insertion instrument guides at least a portion of linear advancement of the spacer, and wherein linear advancement of the spacer results in expansion of the intervertebral implant such that the superior surface of the upper member and the inferior surface of the lower member move away from one another to expand a height of the implant. - View Dependent Claims (173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 185, 201)
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184. (canceled)
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186. An intervertebral implant system for a human spine, comprising:
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an upper body configured to be disposed in an intervertebral space between an upper vertebrae and a lower vertebrae during use, wherein the upper body comprises; a superior surface disposed adjacent the upper vertebrae, and an inferior surface opposite the superior surface; a lower body configured to be disposed into the intervertebral space between the upper vertebrae and the lower vertebrae during use, wherein the lower body comprises; an inferior surface disposed adjacent the lower vertebrae, and a superior surface opposite the inferior surface; an elongated insertion instrument configured to be releasably coupled to at least one of the upper body and the lower body during use; and a spacer configured to be linearly advanced between the inferior surface of the upper body and the superior surface of the lower body during use, wherein the elongated insertion instrument guides at least a portion of linear advancement of the spacer, and wherein linear advancement of the spacer results in expansion of the intervertebral implant such that the superior surface of the upper member and the inferior surface of the lower member move away from one another to expand a height of the implant. - View Dependent Claims (187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 198, 202)
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197. (canceled)
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199. (canceled)
Specification