US6425919B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices and methods of vertebral disc augmentation
Assignee: Intrinsic Therapeutics Inc
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Filing: 2000-06-30
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Granted: 2002-07-30
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Expires: 2020-06-30
Abstract
Abstract A disk herniation constraining device for implantation into a vertebral disk can include a support member for support of a herniated portion of a disk. The support member can be connected to an anchor. The constraining device can include the insertion of augmentation material within the disk. A defect in the annulus of a disk can be closed using a prosthesis such as a barrier. The barrier can be placed between the annulus and the nucleus of the disk. The barrier can include a sealant and an enlarger. The barrier can be implanted into the disk using a delivery cannule, an advancer and at least one control filament to control the positioning of the barrier over the defect. A stiffening element can be included within the barrier to impart stiffness to the barrier.
Inventors
- 👤 Gregory H Lambrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4657; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B5/00; A61B5/103; A61B5/107; A61B5/1076; A61F2/44; A61F2/441; A61F2/442; A61F2/4603; A61F2/4611; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/00535; A61B2017/00557; A61B2017/320044; A61B90/00; A61B90/06; A61B2090/061; A61B5/45; A61B5/4514; A61F2/28; A61F2/2846; A61F2/30721; A61F2/30723; A61F2/30767; A61F2/30907; A61F2/4601; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30075; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30131; A61F2002/30199; A61F2002/30224; A61F2002/30228; A61F2002/30291; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2002/30535; A61F2002/30565; A61F2002/30571; A61F2002/30589; A61F2002/30667; A61F2002/30677; A61F2/30771; A61F2002/30772; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/4435; A61F2002/444; A61F2002/448; A61F2002/4635; A61F2002/4658; A61F2002/4661; A61F2002/4662; A61F2210/00; A61F2210/0004; A61F2210/0061; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0063; A61F2230/0069; A61F2230/0091; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00365; A61F2310/00389; A61F2310/00976
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
70 words
An implant for implantation between a nucleus and an anulus and across a defect in the anulus in an intervertebral disc, comprising: a barrier having a first and second surface, wherein said first surface is adapted to present a concave surface facing the nucleus in the implanted orientation and wherein said barrier is dimensioned to extend along the anulus across and beyond the periphery of the area defining a defeat.
Claim 2
Dependent Claim
70 words
An implant for implantation between a nucleus and an anulus and across a defect in the anulus in an intervertebral disc, comprising: a barrier having a first and second surface, wherein said first surface is adapted to present a concave surface facing the nucleus in the implanted orientation and wherein said barrier is dimensioned to extend along the anulus across and beyond the periphery of the area defining a defeat.
Claim 3
Dependent Claim
11 words
The implant of claim 1 , wherein said barrier is resilient.
Claim 4
Dependent Claim
27 words
The implant of claim 1 , wherein said barrier is adapted to contact load bearing anulus tissue sufficient to prevent extrusion of said barrier through said defect.
Claim 5
Dependent Claim
29 words
The implant of claim 1 , wherein said barrier is adapted to contact load bearing vertebral body endplate tissue sufficient to prevent extrusion of said barrier through said defect.
Claim 6
Dependent Claim
17 words
The implant of claim 1 , wherein said barrier has a width of at least 1 cm.
Claim 7
Dependent Claim
17 words
The implant of claim 1 , wherein said barrier has a height of at least 0.05 cm.
Claim 8
Dependent Claim
26 words
The implant of claim 1 , wherein said second surface is adapted to present a convex surface in conformity with the interior surface of the anulus.
Claim 9
Dependent Claim
22 words
The implant of claim 1 , wherein said second surface is adapted to present a convex surface in conformity with the endplates.
Claim 10
Dependent Claim
19 words
The implant of claim 1 , wherein said barrier is adapted to fit between the nucleus and the anulus.
Claim 11
Dependent Claim
37 words
The implant of claim 1 , wherein said barrier has a top and bottom edge and a first and second side edge, wherein said top and bottom edge are dimensioned to contact the endplates at maximum distraction.
Claim 12
Dependent Claim
44 words
The implant of claim 1 , wherein said barrier is dimensioned such that when the barrier is centered in the posterior anulus, the first and second side edges of said barrier lie beyond the posterior anulus and along opposite lateral walls of the anulus.
Claim 13
Independent Claim
86 words
A device for augmenting an anulus of an intervertebral disc suitable for inserting along an interior aspect of an anular lamella substantially in front of a defect in the anulus, comprising: a thin resilient barrier having a first surface facing an interior aspect of the anular lamella and a second surface facing the interior of the intervertebral disc, wherein said barrier is adapted to be sealably positioned against the lamella via the exertion of force on the second surface sustained by a pressurized intervertebral disc environment.
Claim 14
Independent Claim
86 words
A device for augmenting an anulus of an intervertebral disc suitable for inserting along an interior aspect of an anular lamella substantially in front of a defect in the anulus, comprising: a thin resilient barrier having a first surface facing an interior aspect of the anular lamella and a second surface facing the interior of the intervertebral disc, wherein said barrier is adapted to be sealably positioned against the lamella via the exertion of force on the second surface sustained by a pressurized intervertebral disc environment.
Claim 15
Dependent Claim
20 words
The device of claim 12 , wherein the barrier is adapted to be inserted between the anulus and the nucleus.
Claim 16
Independent Claim
42 words
A device for partially encapsulating inter-anular material comprising resilient flexible material adapted to conform to at least a portion of the interior surface of an anulus fibrosus and of sufficient size and sufficient rigidity to not be extrudable through an anulus defect.
Claim 17
Independent Claim
42 words
A device for partially encapsulating inter-anular material comprising resilient flexible material adapted to conform to at least a portion of the interior surface of an anulus fibrosus and of sufficient size and sufficient rigidity to not be extrudable through an anulus defect.
Claim 18
Dependent Claim
65 words
An anulus augmentation implant for insertion along the surface of an anular lamella and across a defect in an intervertebral disc, comprising: a collapseable resilient barrier having a top and bottom edge and a first and second side edge, wherein the top and bottom edge are sized to contact the endplates at maximum distraction; and wherein the first and second edge extend beyond the defect.
Claim 19
Dependent Claim
65 words
An anulus augmentation implant for insertion along the surface of an anular lamella and across a defect in an intervertebral disc, comprising: a collapseable resilient barrier having a top and bottom edge and a first and second side edge, wherein the top and bottom edge are sized to contact the endplates at maximum distraction; and wherein the first and second edge extend beyond the defect.
Claim 20
Dependent Claim
22 words
The device of claim 15 , wherein the barrier has a concave cross section along at least a portion of its length.
Claim 21
Dependent Claim
24 words
The implant of claim 15 , wherein the first edge and the second edge are adapted to extend beyond the posterior anulus when implanted.
Claim 22
Independent Claim
86 words
A device for transferring intervertebral disc pressure from a defect in an anulus fibrosus to load bearing tissue, comprising: a flexible barrier having a first convex surface and a second concave surface; wherein the first convex surface is in communication with a portion of the posterior anulus; wherein the second concave surface is in communication with the nucleus pulposus; and wherein said barrier is dimensioned to extend beyond the periphery of the area defining the defect such that the barrier contacts load bearing intervertebral disc tissue.
Claim 23
Independent Claim
86 words
A device for transferring intervertebral disc pressure from a defect in an anulus fibrosus to load bearing tissue, comprising: a flexible barrier having a first convex surface and a second concave surface; wherein the first convex surface is in communication with a portion of the posterior anulus; wherein the second concave surface is in communication with the nucleus pulposus; and wherein said barrier is dimensioned to extend beyond the periphery of the area defining the defect such that the barrier contacts load bearing intervertebral disc tissue.
Claim 24
Dependent Claim
58 words
A dynamically stable device for shielding defects in an anulus fibrosus of an intervertebral disc, comprising: a flexible membrane adapted to yield to interdiscal pressure and conform to at least a portion of the posterior anulus under both distraction and compression of the disc, wherein said membrane is sized to extend along the interior of The posterior anulus.
Claim 25
Dependent Claim
58 words
A dynamically stable device for shielding defects in an anulus fibrosus of an intervertebral disc, comprising: a flexible membrane adapted to yield to interdiscal pressure and conform to at least a portion of the posterior anulus under both distraction and compression of the disc, wherein said membrane is sized to extend along the interior of The posterior anulus.
Claim 26
Dependent Claim
58 words
The device of claim 19 , wherein the device has a width in a lateral direction and a height in an inferior-superior direction, wherein the height exceeds the distance between an inferior vertebral body and a superior vertebral body when filly distracted so that the device is concave inwardly along an inferior superior axis in the implanted orientation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-07-29 | 2006-01-28 | 2006-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-29 | 2010-01-28 | 2010-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-29 | 2014-01-28 | 2014-07-30 | $7700.00 | Window Closed / Lapsed |