Patent US4394777A successfully refreshed from Google Patents.
Patent US3570013A successfully refreshed from Google Patents.
US3570013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac implant
Assignee: Individual
•
Filing: 1968-06-19
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Granted: 1971-03-16
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Expires: 1988-06-19
Abstract
Abstract THIS PATENT DISCLOSES A CARDIAC IMPLANT FOR USE IN SUPPLYING ARTERIAL BLOOD TO PORTIONS OF THE NYOCARDIUM OF A PATIENT. THE IMPLANT IS MADE OF SILICONE-IMPREGNATED WOVEN DACRON, PRE-CLOTTED IN THE PATIENT''S OWN BLOOD, AND COMPRISES A MAIN PORTION OR TUBE WHICH SEPARATES INTO A NUMBER OF BRANCH PORTIONS. EACH OF THE BRANCH PORTIONS IS PROVIDED WITH A NUMBER OF PERFORATIONS. THE MAIN TUBE IS GRAFTED TO THE AORTA, AND THE BRANCHES ARE INSERTED IN THE MYOCARDIUM OF THE PATIENT. BLOOD-VESSEL GROWTH WILL TAKE PLACE IN THE VICINITY OF THE PERFORATIONS, SO THAT COLLATERAL CIRCULATION IS PROVIDED, E.G., TO A HEART IMPAIRED BY CORONARY THROMBOSIS.
Inventors
- 👤 Louis J Blumen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2002/065
Claims Analysis
Total Claims: 0
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |