Spinal disc annulus repair device
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Accused Products
Abstract
A stent, or device for repair and reconstruction of the spinal disc wall, or annulus fibrosus, after surgical incision or pathologic rupture, which is inserted through an aperture into the subannular space. The stent has radial extensions which are caused or allowed to expand into an expanded configuration to bridge the aperture. The stent thereby occludes the defective region from the inside of the vertebral disc and prevents the migration of nucleus pulposus therethrough, while also providing a scaffold for tissue growth.
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Citations
87 Claims
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1-44. -44. (canceled)
- 45. An annulus stent for repairing an aperture in an intervertebral disc annulus comprising a centralized vertical extension with an upper section and a lower section, and a recess between the upper section and the lower section enabling the annulus stent to form a compatible fit with the edges of an aperture.
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49. An implantable device for therapeutically or prophylactically treating the annulus of a patient'"'"'s intervertebral disc, the annulus having an aperture having an aperture dimension along a selected axis, said device comprising a body having a delivery configuration and an implanted configuration, wherein:
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in said delivery configuration said device has at least one first dimension no larger than said aperture dimension; and
in said implanted configuration said device has at least one second dimension larger than said aperture dimension. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
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81. A device for treating a defect in an intervertebral disc annulus, the device comprising of a body having a delivery configuration and an implanted configuration, wherein:
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in said delivery configuration said device has at least one first dimension permitting the device to be passed into or through the defect; and
,in said implanted configuration said device has at least one second dimension that is larger than said defect.
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82. An implantable device for treating an aperture in the annulus fibrosus of an intervertebral disc, the device comprising a collapsible body, wherein the body is characterized by:
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a first collapsed configuration dimensioned to be at least partially delivered through the aperture; and
,a second expanded configuration having at least one dimension larger than said aperture.
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83. A device for treating an intervertebral disc having an aperture in the annulus fibrosus, wherein the aperture provides a pathway for the migration of intradiscal material from the subannular space, the device comprising a barrier body wherein the body has:
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a first dimension during deployment permitting said device to pass through the aperture and, a second post-deployment dimension whereby said second dimension at least partially spans said aperture, thereby restricting the migration of intradiscal material through the aperture.
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84. A method of treating an intervertebral disc, comprising the steps of:
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harvesting autograft or allograft tendon material from a live or recently deceased human or other suitable donor; and
transplanting the tendon material into or onto a disc to strengthen the annulus fibrosis or to augment or replace the nucleus pulposus. - View Dependent Claims (85, 86, 87)
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Specification