US3656185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac valvular support prosthesis
Assignee: Baxter International Inc
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Filing: 1970-02-04
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Granted: 1972-04-18
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Expires: 1990-02-04
Abstract
Abstract A cardiac valvular prosthesis, e.g., for the mitral valve, consisting solely of an annular or part-annular member adapted to fit against the base of the cusps of a human heart valve, and suture means for securing the member in place. The prosthesis cooperates with the natural valve cusps of the patient to form the valve.
Inventors
- 👤 Alain F Carpentier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:12
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2/2448
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A cardiac valve support for supporting the cusps of a natural human heart valve without excising said valve and cusps, consisting solely of: an elongated member curved along its length to define a generally ring-shaped rigid member of a size and shape to fit against the base of the cusps of a natural human heart valve, the central axis of said curved elongated member lying substantially in a single plane, and suture means for suturing the member In place, said suture means being substantially coextensive with said elongated member.
Claim 2
Dependent Claim
89 words
A cardiac valve support for supporting the cusps of a natural human heart valve without excising said valve and cusps, consisting solely of: an elongated member curved along its length to define a generally ring-shaped rigid member of a size and shape to fit against the base of the cusps of a natural human heart valve, the central axis of said curved elongated member lying substantially in a single plane, and suture means for suturing the member In place, said suture means being substantially coextensive with said elongated member.
Claim 3
Dependent Claim
30 words
A cardiac valve support as claimed in claim 1, wherein the elongated member comprises a rigid frame, and wherein said frame and suture means are enclosed in a textile sheath.
Claim 4
Dependent Claim
40 words
A cardiac valve support as claimed in claim 2, wherein said frame comprises an asymmetric, outwardly hollow, channel section having unequal length flanges defining an external groove, and said suture means comprises a suturable cord disposed within said external groove.
Claim 5
Dependent Claim
21 words
A cardiac valve support as claimed in claim 3, wherein a reinforcing filament extends along said elongated member within said cord.
Claim 6
Dependent Claim
49 words
A cardiac valve support as claimed in claim 1, wherein said elongated member is curved in an annular shape, including a circular sector portion and a substantially straight portion together defining the annular periphery of said elongated member, said straight portion comprising between one-quarter and one-half of said periphery.
Claim 7
Dependent Claim
67 words
A cardiac valve support as claimed in claim 1, wherein said member is a part-annular member curved in an annular shape but omitting between one-quarter and one-half of the total peripheral length of said total annular shape, said part-annular member having spaced apart ends, the annular arcuate spacing between said ends being not less than about one third of the actual peripheral length of said part-annular member.
References Cited (Backward Citations)
US3396409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |