US4576605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac valve prosthesis
Assignee: NAUCHNO-ISSLEDOVATELSKY INSTITUT KHIRURGII IMENI AV VISHNEVSKOGO USSR MOSCOW BSERPUKHOVSKAYA ULITSA 27
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Filing: 1985-03-01
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Granted: 1986-03-18
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Expires: 2005-03-01
Abstract
Abstract A cardiac valve prosthesis including an annular body having a valving member and a suturing collar. The collar has a V-shaped groove in which is mounted a movable disc segment intended for covering calcinosis. There is provided a cord for retaining the disc segment in a desired angular position relative to the suturing collar.
Inventors
- 👤 Arnold N. Kaidash
- 👤 Naum A. Iofis
- 👤 Semen G. Khurtsilava
- 👤 Alexandr S. Bukatov
- 👤 Zinaida P. Danilova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:02
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
In a cardiac valve prosthesis including an annular body having a valving member and an annular suturing collar disposed outside the annular body, the improvement comprising an annular suturing collar having an outer periphery and a groove extending along the entire outer periphery thereof, and a disc segment made of an elastic material, said disc segment mounted in said groove for angular displacement therewithin relative to the axis of the suturing collar to permit positioning of said disc segment in a desired angular position.
Claim 2
Dependent Claim
84 words
In a cardiac valve prosthesis including an annular body having a valving member and an annular suturing collar disposed outside the annular body, the improvement comprising an annular suturing collar having an outer periphery and a groove extending along the entire outer periphery thereof, and a disc segment made of an elastic material, said disc segment mounted in said groove for angular displacement therewithin relative to the axis of the suturing collar to permit positioning of said disc segment in a desired angular position.
Claim 3
Dependent Claim
16 words
A valve prosthesis according to claim 1, in which the groove is of a V-shaped cross-section.
Claim 4
Dependent Claim
58 words
A valve prosthesis according to claim 1, in which a fastening cord is provided on an inner periphery of the disc segment, the cord having ends extending outwardly of said disc segment for connection together to form a knot for retaining the disc segment in a desired angular position relative to the annular body of the valve prosthesis.
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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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |