US7052516B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinal disc annulus reconstruction method and deformable spinal disc annulus stent
Assignee: KRT INVESTORS Inc
•
Filing: 2002-04-29
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Granted: 2006-05-30
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Expires: 2022-04-29
Abstract
Abstract A spinal disc annulus repair stent for repair and reconstruction of the spinal disc wall (annulus) after surgical invasion or pathologic rupture, which may incorporate suture closure or other means of stent insertion and fixation, designed to reduce the failure rate of conventional surgical procedures on the spinal discs. In an illustrative embodiment, the design of the spinal disc annulus stent advantageously allows ingrowth of normal cells of healing in an enhanced fashion strengthening the normal reparative process.
Inventors
- 👤 Joseph C. Cauthen, III
- 👤 Matthew M. Burns
- 👤 Thomas R. Hektner
- 👤 Paul Burmeister
- 👤 Lawrence W. Wales
- 👤 Daniel O. Adams
- 👤 Rodney L. Houfburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:41
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/441; A61F2/442; A61F2/46; A61F2/4603; A61F2/4611; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06166; A61B17/064; A61B17/0642; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B2017/00004; A61B2017/06176; A61B2017/0641; A61B2017/0647; A61B2017/0648; A61F2/0063; A61F2/30767; A61F2/30907; A61F2/4601; A61F2/28; A61F2002/2817; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30092; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30158; A61F2002/30199; A61F2002/30299; A61F2002/30316; A61F2002/30535; A61F2002/30579; A61F2/30771; A61F2002/30772; A61F2002/30777; A61F2002/30784; A61F2002/30841; A61F2002/4435; A61F2002/444; A61F2002/4625; A61F2002/4627; A61F2210/00; A61F2210/0004; A61F2210/0014; A61F2210/0019; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0026; A61F2230/0063; A61F2230/0093; A61F2310/00; A61F2310/00005; A61F2310/00011; Y; Y10; Y10S; Y10S623/00; Y10S623/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
A method of primarily treating an intervertebral disc annulus having an aperture in the wall of the annulus fibrosus, wherein the aperture provides a path for the migration of nucleus pulposus from the subannular space, the method comprising the steps of: providing an expandable device having a first configuration dimensioned to pass through the aperture and a second expanded configuration having at least one dimension at least as large as the aperture and having at least one dimension larger than a corresponding dimension in said first configuration; inserting the device through the aperture into the subannular space when the device is in the first configuration; and causing or allowing the device to expand in the subannular space into the second expanded configuration, wherein said device has a portion that is provided primarily for treating said aperture and serving to bridge the aperture and preventing the migration of nucleus pulposus therethrough.
Claim 2
Independent Claim
150 words
A method of primarily treating an intervertebral disc annulus having an aperture in the wall of the annulus fibrosus, wherein the aperture provides a path for the migration of nucleus pulposus from the subannular space, the method comprising the steps of: providing an expandable device having a first configuration dimensioned to pass through the aperture and a second expanded configuration having at least one dimension at least as large as the aperture and having at least one dimension larger than a corresponding dimension in said first configuration; inserting the device through the aperture into the subannular space when the device is in the first configuration; and causing or allowing the device to expand in the subannular space into the second expanded configuration, wherein said device has a portion that is provided primarily for treating said aperture and serving to bridge the aperture and preventing the migration of nucleus pulposus therethrough.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the device is comprised of a shape memory material.
Claim 4
Dependent Claim
13 words
The method of claim 2 , wherein the shape memory material is nitinol.
Claim 5
Dependent Claim
15 words
The method of claim 1 , wherein the device is at least in part bioabsorbable.
Claim 6
Dependent Claim
24 words
The method of claim 1 , further comprising the step of treating the annulus tissue surrounding the aperture to reduce the relative motion thereof.
Claim 7
Dependent Claim
14 words
The method of claim 5 , further comprising the step of reapproximating the aperture.
Claim 8
Dependent Claim
19 words
The method of claim 6 , wherein the device further comprises at least one element for reapproximating the aperture.
Claim 9
Dependent Claim
23 words
The method of claim 1 , wherein the device further comprises at least one fixation element for attaching the device to the annulus.
Claim 10
Dependent Claim
11 words
The method of claim 1 , wherein the aperture is pathologic.
Claim 11
Dependent Claim
19 words
The method of claim 1 , wherein the aperture is formed at least in part by a surgical incision.
Claim 12
Dependent Claim
30 words
A method of intervertebral disc reconstruction for treating a disc having an aperture in the wall of the annulus fibrosis, wherein the method of claim 1 is performed following discectomy.
References Cited (Backward Citations)
US3867728A
Cited
US4013078A
Cited
US4059115A
Cited
GB2054383A
Cited
US4545374A
Cited
US4741330A
Cited
US4873976A
Cited
US4932969A
Cited
US4890612A
Cited
US4852568A
Cited
US5258043A
Cited
US4904260A
Cited
US4772287A
Cited
US5108438A
Cited
US5204106A
Cited
US5015255A
Cited
US5061274A
Cited
US5021059A
Cited
WO1991016867A1
Cited
US5122154A
Cited
US5366460A
Cited
US5171278A
Cited
US5390683A
Cited
US5269783A
Cited
US5195541A
Cited
US5313962A
Cited
US5935147A
Cited
US5397331A
Cited
US5258000A
Cited
US5766246A
Cited
US5342393A
Cited
US5376120A
Cited
US5320633A
Cited
US5356432B1
Cited
US5356432A
Cited
US5368602A
Cited
US5439464A
Cited
WO1994023671A1
Cited
US5534028A
Cited
US5755797A
Cited
US5702454A
Cited
US5500000A
Cited
US5507754A
Cited
US5549617A
Cited
US5562689A
Cited
US5954767A
Cited
WO1995022285A1
Cited
US5599279A
Cited
US5545178A
Cited
US5531759A
Cited
US5556429A
Cited
US5569242A
Cited
US5888220A
Cited
US20010004710A1
Cited
US6140452A
Cited
US5571189A
Cited
WO1995031948A1
Cited
US5549679A
Cited
WO1995031946A1
Cited
US6187048B1
Cited
US6447531B1
Cited
US5681310A
Cited
US5849331A
Cited
US5976186A
Cited
US5972022A
Cited
US6171318B1
Cited
US6280453B1
Cited
US5916225A
Cited
US5785705A
Cited
US5824093A
Cited
US5649945A
Cited
US5562736A
Cited
US5634944A
Cited
WO1996027339A1
Cited
US5733337A
Cited
WO1998001091A1
Cited
US5827298A
Cited
WO1997020874A1
Cited
US5645597A
Cited
WO1997026847A1
Cited
US5782844A
Cited
US5788625A
Cited
US5922028A
Cited
US5662681A
Cited
US5904703A
Cited
US5964807A
Cited
WO1998005274A1
Cited
US6007570A
Cited
US6126682A
Cited
US6099514A
Cited
US5980504A
Cited
US6073051A
Cited
US6095149A
Cited
US5716416A
Cited
WO1998022050A1
Cited
US5879366A
Cited
US5782860A
Cited
US5800549A
Cited
WO1999000074A1
Cited
WO1999002108A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-05-29 | 2009-11-28 | 2010-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-05-29 | 2013-11-28 | 2014-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-05-29 | 2017-11-28 | 2018-05-30 | $7700.00 | Window Closed / Lapsed |