Patent US2122611A successfully refreshed from Google Patents.
US3570014A
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Stent for heart valve
Assignee: Medtronic Inc
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Filing: 1968-09-16
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Granted: 1971-03-16
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Expires: 1988-09-16
Abstract
Abstract A HEART VALVE STENT THAT INCLUDES AN ANNULAR FRAMEWORK, PREFERABLY OF BENDABLE MATERIAL, HAVING THREE ROUNDED APEXES INTERCONNECTED BY SUPPORT ARMS CURVED TO INCLINE AWAY FROM THE APEXES. ADDITIONAL SUPPORT MEANS ARE INCLUDED PARALLEL TO AND AXIALLY BEYOND THE FIRST SUPPORT ARMS. FOR USE IN THE MITRAL POSITION, THE FRAMEWORK IS CIRCUMSCRIBED BY AN OUTER RING, WHICH RECEIVES AN ANNULAR ELEMENT OF FELT OR OTHER SUITABLE MATERIAL. THE HEART VALVE IS POSITIONED ON THE STENT, WITH ITS MARGINAL PORTIONS OVERLAPPING IT AND AFFIXED TO IT BY SUTURES.
Inventors
- 👤 Warren D Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:53
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2220/00; A61F2220/0025; A61F2220/0058; A61F2220/0075; Y; Y10; Y10S; Y10S623/00; Y10S623/90
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 |