Patent US3605726A successfully refreshed from Google Patents.
US3605726A
Expired / Lapsed
US
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Flexible,extra vascular electromagnetic blood flow probe
Assignee: Individual
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Filing: 1969-04-14
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Granted: 1971-09-20
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Expires: 1989-04-14
Abstract
Abstract A FLEXIBLE AND NON-SURGICALLY REMOVABLE ELECTROMAGNETIC BLOOD FLOW PROBE SUITABLE FOR INTRODUCTION INTO LIVING CREATURES TO MEASURE RELATIVELY AND QUANTITIVELY THE VELOCITY, VOLUME OR CHANGE OF BLOOD FLOW THROUGH SELECTIVE BLOOD VESSELS AND ORGANS. THE PROBE IS POSITIONED AT THE TIME OF SURGERY FOR USE OPERATIVELY AND POST-OPERATIVELY, AND BECAUSE OF ITS FLEXIBILITY, SIZE AND SHAPE, IT CAN BE REMOVED FROM THE LIVING CREATURE WITHOUT FURTHER SURGERY. IT IS FORMED BY ENCLOSING A FLUX FORMING COIL HAVING COOPERATING ELECTRODES FOR SENSING A VOLTAGE GENERATED BY CONDUCTIVE BLOOD WITH A FLEXIBLE COVER.
Inventors
- 👤 Bryn T Williams
- 👤 Charles A Barefoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:18
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/026; A61B5/0265; G; G01; G01F; G01F1/00; G01F1/56; G01F1/58
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |