Patent US4451936A successfully refreshed from Google Patents.
US4451936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supra-annular aortic valve
Assignee: Edwards Lifesciences Corp
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Filing: 1981-12-21
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Granted: 1984-06-05
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Expires: 2001-12-21
Abstract
Abstract An aortic prosthetic valve for supra-annular implantation comprising a valve body of generally annular configuration and a valve element movably mounted on the valve body for opening and closing the valve. The valve body terminates in a generally annular base surface, and a scalloped suture ring circumscribes the valve body adjacent the base surface. The suture ring is configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta. The base surface of the valve body is of a wavy configuration and is configured such that it does not project into the annulus at the base of the aorta, and accordingly, the valve body does not interfere with flow through the annulus. The suture ring has three lobes which fit the Sinuses of Valsalva at the base of the aorta. The valve is configured to minimize disruption of the vortices which develop in the Sinuses of Valsalva to assist in closing the valve.
Inventors
- 👤 Alain Carpentier
- 👤 Ernest Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
An aortic prosthetic valve for supra-annular implantation comprising: a valve body of generally annular configuration and a valve element movably mounted on the valve body for opening and closing the valve, said valve body terminating in a generally annular base surface; a scalloped suture ring circumscribing said valve body adjacent said base surface and configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta; and said base surface of said valve body being of a wavy configuration and configured such that it does not project into the annulus at the base of the aorta when the suture ring is in place in the Sinuses of Valsalva whereby the aortic prosthetic valve can be mounted in a supra-annular position and the valve body does not interfere with flow through the annulus.
Claim 2
Dependent Claim
137 words
An aortic prosthetic valve for supra-annular implantation comprising: a valve body of generally annular configuration and a valve element movably mounted on the valve body for opening and closing the valve, said valve body terminating in a generally annular base surface; a scalloped suture ring circumscribing said valve body adjacent said base surface and configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta; and said base surface of said valve body being of a wavy configuration and configured such that it does not project into the annulus at the base of the aorta when the suture ring is in place in the Sinuses of Valsalva whereby the aortic prosthetic valve can be mounted in a supra-annular position and the valve body does not interfere with flow through the annulus.
Claim 3
Dependent Claim
18 words
A valve as defined in claim 1 wherein said suture ring as viewed in plan has three lobes.
Claim 4
Dependent Claim
54 words
A valve as defined in claim 1 wherein said valve body includes generally axially extending commissure supports which terminate in free ends and intercommissural regions which space the commissure supports circumferentially, said valve element includes valve leaflets on the valve body, said base surface being remote from the free end of the commissure supports.
Claim 5
Dependent Claim
24 words
A valve as defined in claim 3 wherein said suture ring has a radially outwardly projecting lobe between each adjacent pair of commissure supports.
Claim 6
Dependent Claim
69 words
A valve as defined in claim 4 wherein the valve has a surface at the intercommissural regions which extends between the inner periphery of the suture ring and the outer periphery of the valve leaflets on the side of the suture ring remote from the annulus when the suture ring is in place in the Sinuses of Valsalva, said surface being flared as it extends between said outer peripheries.
Claim 7
Dependent Claim
82 words
A valve as defined in claim 3 wherein the valve has a surface at the intercommissural regions which extends between the inner periphery of the suture ring and the outer periphery of the valve leaflets on the side of the suture ring remote from the annulus when the suture ring is in place in the Sinuses of Valsalva, said surface being configured to minimize disruption of the vortices which develop in the Sinuses of Valsalva to assist in closing the valve leaflets.
Claim 8
Dependent Claim
32 words
A valve as defined in claim 1 wherein said valve is devoid of an annular projection below the suture ring when the suture ring is in place in the Sinuses of Valsalva.
Claim 9
Dependent Claim
26 words
A valve as defined in claim 3 wherein the valve is constructed so that only the valve leaflets are in the flow path through the annulus.
Claim 10
Dependent Claim
67 words
A valve as defined in claim 6 wherein said suture ring has a radially outwardly projecting lobe between each adjacent pair of commissure supports, said valve is devoid of an annular projection below the suture ring when the suture ring is in place in the Sinuses of Valsalva, and said valve is constructed so that only the valve leaflets are in the flow path through the annulus.
Claim 11
Independent Claim
133 words
A method comprising: providing an aortic prosthetic valve which includes a valve body of generally annular configuration, a valve element movably mounted on the valve body for opening and closing the valve, and a scalloped suture ring circumscribing the valve body and configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta, said valve body terminating in a generally annular base surface of a wavy configuration; and implanting said aortic prosthetic valve in a human heart with the suture ring being received in the Sinuses of Valsalva at the base of the aorta and with the base surface of the valve body being out of the annulus at the base of the aorta so that the valve body does not interfere with flow through the annulus.
Claim 12
Independent Claim
133 words
A method comprising: providing an aortic prosthetic valve which includes a valve body of generally annular configuration, a valve element movably mounted on the valve body for opening and closing the valve, and a scalloped suture ring circumscribing the valve body and configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta, said valve body terminating in a generally annular base surface of a wavy configuration; and implanting said aortic prosthetic valve in a human heart with the suture ring being received in the Sinuses of Valsalva at the base of the aorta and with the base surface of the valve body being out of the annulus at the base of the aorta so that the valve body does not interfere with flow through the annulus.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |