Patent US4021486A successfully refreshed from Google Patents.
US5573784A
Expired / Lapsed
US
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Graft for promoting autogenous tissue growth
Assignee: Methodist Hospital
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Filing: 1995-04-18
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Granted: 1996-11-12
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Expires: 2015-04-18
Abstract
Abstract Surgical repair of diseased or damaged endogenous connective tissue can be accomplished using a tissue graft formed from a delaminated segment of intestinal tissue. The tissue graft comprises the intestinal tunica submucosa delaminated from both the tunica muscularis and at least the luminal portion of the tunica mucosa. The graft can be conditioned by stretching and formed as a multilayer composition for high tensile strength and resistance to tearing at its points of attachment to existing physiological structures.
Inventors
- 👤 Stephen F. Badylak
- 👤 Leslie A. Geddes
- 👤 K. Donald Shelbourne
- 👤 Gary C. Lantz
- 👤 Arthur C. Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:17
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3641; A61L27/3645; A61B; A61B17/00; A61B17/11; A61B17/1146; A61F; A61F2/00; A61F2/02; A61F2/08; A61L27/3604; A61L27/3629; A61L27/365; A61L27/3662; A61L27/3683; A61L27/3695; A61L2430/00; A61L2430/10; Y; Y10; Y10S; Y10S623/00; Y10S623/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A tissue graft material formed from a segment of intestinal tissue of a warm-blooded vertebrate, said segment of intestinal tissue comprising the tunica submucosa delaminated from both the tunica muscularis and the luminal portion of the tunica mucosa of vertebrate intestine, said graft material formed by conditioning the segment of intestinal tissue so that the graft material has a strain of no more than 20%.
Claim 2
Dependent Claim
65 words
A tissue graft material formed from a segment of intestinal tissue of a warm-blooded vertebrate, said segment of intestinal tissue comprising the tunica submucosa delaminated from both the tunica muscularis and the luminal portion of the tunica mucosa of vertebrate intestine, said graft material formed by conditioning the segment of intestinal tissue so that the graft material has a strain of no more than 20%.
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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) | 1999-11-12 | 2000-05-13 | 2000-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-12 | 2004-05-13 | 2004-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-12 | 2008-05-13 | 2008-11-12 | $7700.00 | Window Closed / Lapsed |