US3689942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic heart valve
Assignee: Individual
•
Filing: 1970-09-15
•
Granted: 1972-09-12
•
Expires: 1990-09-15
Abstract
Abstract A prosthetic heart valve consisting of a cylindrical housing having a substantially rectangular opening therein and a plurality of triangular flaps pivotally secured to the housing within the opening. The flaps are adapted to pivot open in response to the flow of blood from the heart and pivot to a sealing position, in abutment to a sealing ball which controls the position of the flaps, in response to the back flow of the blood, thereby providing uni-directional flow.
Inventors
- 👤 Richard K Rapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; A61F2/2442; A61F2/246; F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/035; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7898; Y10T137/7903
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
118 words
A prosthetic heart valve comprising: an elongated housing having top and bottom end surfaces and being provided with a rectangular opening therein intermediate said end surfaces; a sealing means secured within said housing and located generally axially of said opening; and a plurality of substantially triangular flaps, pivotally secured to the inner surface of said housing within said rectangular opening, said flaps being substantIally rigid and sized to at least substantially seal said opening and adapted to open in response to the flow of blood from the heart and close in response to the back flow of blood towards the heart, an apex of said flaps abutting said sealing means when said flaps are in their closed position.
Claim 2
Dependent Claim
118 words
A prosthetic heart valve comprising: an elongated housing having top and bottom end surfaces and being provided with a rectangular opening therein intermediate said end surfaces; a sealing means secured within said housing and located generally axially of said opening; and a plurality of substantially triangular flaps, pivotally secured to the inner surface of said housing within said rectangular opening, said flaps being substantIally rigid and sized to at least substantially seal said opening and adapted to open in response to the flow of blood from the heart and close in response to the back flow of blood towards the heart, an apex of said flaps abutting said sealing means when said flaps are in their closed position.
Claim 3
Dependent Claim
17 words
A prosthetic heart valve in accordance with claim 1, wherein said housing has an impervious inner surface.
Claim 4
Dependent Claim
17 words
A prosthetic heart valve in accordance with claim 2, wherein said housing has a porous outer surface.
Claim 5
Dependent Claim
39 words
A prosthetic heart valve in accordance with claim 1, wherein said flaps have a depression along one of their apexes, said depression being complementary to the sealing means for abutment therewith when said flaps are in their closed position.
Claim 6
Dependent Claim
41 words
A prosthetic heart valve in accordance with claim 1, wherein said sealing means comprises: a ball disposed centrally of the opening within said housing; and support members secured between said ball and said housing for rigidly retaining said ball in position.
Claim 7
Dependent Claim
17 words
A prosthetic heart valve in accordance with claim 5, wherein said ball has a substantially eliptical configuration.
Claim 8
Dependent Claim
16 words
A prosthetic heart valve in accordance with claim 1, wherein said flaps have a compound curvature.
Claim 9
Dependent Claim
16 words
A prosthetic heart valve in accordance with claim 7, wherein said flaps have a sinusoidal configuration.
Claim 10
Dependent Claim
24 words
A prosthetic heart valve in accordance with claim 1, wherein said flaps have a convex upper and lower surface tapering towards their free apexes.
Claim 11
Dependent Claim
26 words
A prosthetic heart valve in accordance with claim 9, wherein said flaps are tapered towards their free apex and towards the two sides forming said apex.
Claim 12
Dependent Claim
64 words
A prosthetic heart valve in accordance with claim 1, further comprising: a plurality of support pins, said pins having a substantially Y-configuration, one end pivotally secured to a corner of one flap, another end pivotally secured to a corner of an adjacent flap and the leg fixedly secured to the housing, whereby said flaps are pivotally secured to said housing by said support pins.
Claim 13
Dependent Claim
21 words
A prosthetic heart valve in accordance with claim 2, wherein said impervious inner surface slopes inwardly to form the rectangular opening.
Claim 14
Dependent Claim
21 words
A prosthetic heart valve in accordance with claim 1, wherein said housing is annular and has a substantially C-shaped exterior configuration.
Claim 15
Dependent Claim
29 words
A prosthetic heart valve in accordance with claim 13, further comprising: a layer of polyethylene terephthalate disposed within the concave portions of said housing forming said C-shaped exterior configuration.
Claim 16
Dependent Claim
50 words
A prosthetic heart valve in accordance with claim 1, further comprising: a flap guide disposed upon said flap and adapted to coact with said sealing means, whereby said flaps are guided into complementary juxtaposition to each other and in abutment to each other and in abutment to said sealing means.
Claim 17
Dependent Claim
115 words
A uni-directional prosthetic valve comprising: an elongated housing having top and bottom end surfaces and being provided with a rectangular opening therein intermediate said end surfaces; a sealing means secured within said housing adjacent to and centrally of the rectangular opening; a plurality of triangular flaps pivotally secured to the inner surface of said housing and within said rectangular opening, said flaps being substantially rigid and sized to at least substantially seal said opening and adapted to open away from said sealing means in response to a flow of fluid in one direction and to close in abutment to said sealing means thereby sealing the rectangular opening in response to flow in a contra direction.
Claim 18
Dependent Claim
115 words
A uni-directional prosthetic valve comprising: an elongated housing having top and bottom end surfaces and being provided with a rectangular opening therein intermediate said end surfaces; a sealing means secured within said housing adjacent to and centrally of the rectangular opening; a plurality of triangular flaps pivotally secured to the inner surface of said housing and within said rectangular opening, said flaps being substantially rigid and sized to at least substantially seal said opening and adapted to open away from said sealing means in response to a flow of fluid in one direction and to close in abutment to said sealing means thereby sealing the rectangular opening in response to flow in a contra direction.
Claim 19
Dependent Claim
46 words
A uni-directional prosthetic valve in accordance with claim 16, wherein said flaps have a depression along an apex, each depression complementary conforming to the shape of said sealing means, whereby said sealing means rests partially within said complementary depression when said flaps are in abutment thereto.
References Cited (Backward Citations)
US3314420A
Cited
US3370305A
Cited
CH452298A
Cited
FR1500461A
Cited
US3445863A
Cited
US3438394A
Cited
US3448465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |