Patent US6592625B2 successfully refreshed from Google Patents.
US6592625B2
Expired / Lapsed
US
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Spinal disc annulus reconstruction method and spinal disc annulus stent
Assignee: KRT INVESTORS Inc
•
Filing: 2001-09-05
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Granted: 2003-07-15
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Expires: 2021-09-05
Abstract
Abstract A surgical method of repair and reconstruction of the spinal disc wall, or annulus fibrosus, after surgical incision or pathologic rupture, through the insertion of a collapsible patch through an aperture into the subannular space and causing or allowing the patch to expand into an expanded configuration to bridge the aperture. The technique thereby occludes the aperture from the interior of the vertebral disc and prevents the migration of nucleus pulposus therethrough.
Inventors
- 👤 Joseph C. Cauthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4611; A61F2/44; A61F2/441; A61F2/442; 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; Y10S606/00; Y10S606/907; Y10S623/00; Y10S623/902
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A method of intervertebral disc reconstruction for treating a disc having an aperture in the wall of the annulus fibrosis, the method comprising the steps of: a) providing a collapsible patch having a first collapsed configuration dimensioned to pass through the aperture and a second expanded configuration having at least one dimension at least as large as the aperture; b) inserting the patch through the aperture into the subannular space within the disc when the patch is in the first collapsed configuration; and c) causing or allowing the patch to expand in the subannular space into the second expanded configuration to bridge the aperture, thereby occluding the aperture.
Claim 2
Independent Claim
108 words
A method of intervertebral disc reconstruction for treating a disc having an aperture in the wall of the annulus fibrosis, the method comprising the steps of: a) providing a collapsible patch having a first collapsed configuration dimensioned to pass through the aperture and a second expanded configuration having at least one dimension at least as large as the aperture; b) inserting the patch through the aperture into the subannular space within the disc when the patch is in the first collapsed configuration; and c) causing or allowing the patch to expand in the subannular space into the second expanded configuration to bridge the aperture, thereby occluding the aperture.
Claim 3
Dependent Claim
14 words
The method of claim 1 , wherein the patch is comprised of fascial tissue.
Claim 4
Dependent Claim
16 words
The method of claim 1 , wherein the patch is at least in part autograft material.
Claim 5
Dependent Claim
16 words
The method of claim 1 , wherein the patch is at least in part allograft material.
Claim 6
Dependent Claim
16 words
The method of claim 1 , wherein the patch is at least in part xenograft material.
Claim 7
Dependent Claim
11 words
The method of claim 1 , wherein the aperture is pathologic.
Claim 8
Dependent Claim
19 words
The method of claim 1 , wherein the aperture is formed at least in part by a surgical incision.
Claim 9
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.
Claim 10
Dependent Claim
36 words
A method of intervertebral disc reconstruction for treating a disc having an aperture in the wall of the fibrosis, wherein the method of claim 1 includes fixating the bridging patch with respect to the annulus fibrosis.
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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) | 2006-07-14 | 2007-01-13 | 2007-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-07-14 | 2011-01-13 | 2011-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-07-14 | 2015-01-13 | 2015-07-15 | $7700.00 | Window Closed / Lapsed |