Patent US4208511A successfully refreshed from Google Patents.
US4290151A
Expired / Lapsed
US
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Adjustable annular prosthesis for cardiac surgery
Assignee: Individual
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Filing: 1980-07-22
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Granted: 1981-09-22
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Expires: 2000-07-22
Abstract
Abstract An adjustable annular prosthesis for use in the surgical correction of atrioventricular orifice defects is disclosed and claimed.
Inventors
- 👤 Miguel P. Massana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2250/00; A61F2250/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
An adjustable annular prosthesis for cardiac surgery comprising a tubular body of textile material biocompatible with the human body, said tubular body being woven in such a manner that it is longitudinally and diametrically expandable, and the ends of said tubular body being sewn together at a seam to form a ring, and a filiform string provided in the interior of said tubular body and extending to the exterior thereof at two exit points on opposite sides of said seam so as to leave two loose ends, said string being undulated twice at approximately 130° from its respective exit points, extending to the exterior of the tubular body and then penetrating again into the interior thereof, thereby providing retention points of the string which differentiate zones of contraction during use of the prosthesis when the latter is sutured to an atrioventricular valve.
Claim 2
Dependent Claim
142 words
An adjustable annular prosthesis for cardiac surgery comprising a tubular body of textile material biocompatible with the human body, said tubular body being woven in such a manner that it is longitudinally and diametrically expandable, and the ends of said tubular body being sewn together at a seam to form a ring, and a filiform string provided in the interior of said tubular body and extending to the exterior thereof at two exit points on opposite sides of said seam so as to leave two loose ends, said string being undulated twice at approximately 130° from its respective exit points, extending to the exterior of the tubular body and then penetrating again into the interior thereof, thereby providing retention points of the string which differentiate zones of contraction during use of the prosthesis when the latter is sutured to an atrioventricular valve.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |