Patent US4159543A successfully refreshed from Google Patents.
US4159543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart valve prosthesis
Assignee: Individual
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Filing: 1976-11-11
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Granted: 1979-07-03
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Expires: 1996-11-11
Abstract
Abstract A heart valve is disclosed comprising: (a) a substantially circular ring having at least one seat and known types of suture means, and (b) two substantially semicircular movable flaps adapted to rest on the said seat, Comprising means permitting the said flaps to undergo movements of rotation through an angle less than 90°, as well as of translation. The flaps can swing, each through an angle of less than 90°, between the said seat and two substantially parallel and transverse shafts serving as stops and limiting the displacements of the said flaps in rotation and in translation. Various refinements and embodiments are disclosed.
Inventors
- 👤 Alain Carpentier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7898; Y10T137/7903
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
A heart valve comprising: (a) a substantially circular ring having at least one seat and known types of suture means, and (b) two substantially semicircular movable flaps adapted to rest on the said seat, comprising means permitting the said flaps to undergo movements of rotation through an angle less than 90°, as well as of translation, the said flaps being adapted to swing, each through an angle of less than 90°, between the said seat and two substantially parallel and transverse shafts serving as stops and limiting the displacements of the said flaps in rotation and in translation, the said shafts being constituted by cylindrical rods which are parallel and each having a fixed position with respect to the ring, the said rods cooperating with pegs disposed on the same face of the said flaps with respect to the said rods.
Claim 2
Dependent Claim
141 words
A heart valve comprising: (a) a substantially circular ring having at least one seat and known types of suture means, and (b) two substantially semicircular movable flaps adapted to rest on the said seat, comprising means permitting the said flaps to undergo movements of rotation through an angle less than 90°, as well as of translation, the said flaps being adapted to swing, each through an angle of less than 90°, between the said seat and two substantially parallel and transverse shafts serving as stops and limiting the displacements of the said flaps in rotation and in translation, the said shafts being constituted by cylindrical rods which are parallel and each having a fixed position with respect to the ring, the said rods cooperating with pegs disposed on the same face of the said flaps with respect to the said rods.
Claim 3
Dependent Claim
19 words
A heart valve according to claim 1, characterized in that the said pegs have the form of profiled ridges.
Claim 4
Dependent Claim
148 words
A heart valve comprising: (a) a substantially circular ring having at least one seat and known types of suture means, and (b) two substantially semicircular movable flaps adapted to rest on the said seat, comprising means permitting the said flaps to undergo movements of rotation through an angle less than 90°, as well as of translation, the said flaps being adapted to swing, each through an angle of less than 90°, between the said seat and two substantially parallel and transverse shafts serving as stops and limiting the displacements of the said flaps in rotation and in translation, said flaps not being in permanent contact with said shafts, the said shafts being constituted by cylindrical parallel rods, each having a fixed position with respect to the ring, the said rods cooperating with pegs disposed on the same face of the said flaps with respect to the said rods.
Claim 5
Dependent Claim
148 words
A heart valve comprising: (a) a substantially circular ring having at least one seat and known types of suture means, and (b) two substantially semicircular movable flaps adapted to rest on the said seat, comprising means permitting the said flaps to undergo movements of rotation through an angle less than 90°, as well as of translation, the said flaps being adapted to swing, each through an angle of less than 90°, between the said seat and two substantially parallel and transverse shafts serving as stops and limiting the displacements of the said flaps in rotation and in translation, said flaps not being in permanent contact with said shafts, the said shafts being constituted by cylindrical parallel rods, each having a fixed position with respect to the ring, the said rods cooperating with pegs disposed on the same face of the said flaps with respect to the said rods.
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) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |