US3626518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial cardiac valve
Assignee: Individual
•
Filing: 1969-07-30
•
Granted: 1971-12-14
•
Expires: 1989-07-30
Abstract
Abstract AS TO PROVIDE TWO FLOW PATHS WHEN THE VALVE IS IN THE OPEN POSITION. CHARACTERISTICS OF THE BALL VALVE AND DISC VALVE ARE EMPLOYED TO PROVIDE A CARDIAC VALVE OF IMPROVED HYDRODYNAMIC DESIGN TO ASSURE MORE STREAMLINE BLOOD FLOW AND DECREASED TURBULENCE. AT THE SAME TIME, THE VALVE EFFECTS A REDUCTION IN VOLUME AS COMPARED TO BALL VALVES HERETOFORE USED, BUT WITHOUT LESSENING THE AMOUNT OF GLOOD FLOWING THERETHROUGH. AN INTERMEDIATE MOVABLE SEATING RING IS LOACTED BETWEEN THE BALL AND STATIONARY VALVE SEAT SO
Inventors
- 👤 Saul Leibinsohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2421; A61F2/2424; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7842; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |