US3347224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for measuring cardiac output
Assignee: Individual
•
Filing: 1964-05-26
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Granted: 1967-10-17
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Brandon L Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/026; A61B5/0265; A61B5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN APPARATUS FOR MEASURING CARDIAC OUTPUT, COMPRISING A CARDIAC CATHETER FOR INSERTION INTO A BLOOD VESSEL IN WHICH THE FLOW OF BLOOD IS TO BE MEASURED, A PROBE SLIDABLY POSITIONED WITHIN SAID CATHETER AND COMPRISING A PAIR OF SPACED APART ELECTRODES AT AN END OF SAID CATHETER, MEANS WITHIN SAID CATHETER FOR SPACING SAID ELECTRODES FURHER APART AS SAID PROBE IS ADVANCED OUTWARDLY OF SAID CATHETER END, MEANS FOR ESTABLISHING A ELECTROMAGNETIC FIELD THROUGH THE BLOOD VESSEL IN WHICH THE BLOOD FLOW IS TO BE MEASURED WHEREBY THE FLOW OF BLOOD THROUGH SAID MAGNETIC FIELD WILL INDUCED AND EMF
Claim 2
Independent Claim
99 words
AN APPARATUS FOR MEASURING CARDIAC OUTPUT, COMPRISING A CARDIAC CATHETER FOR INSERTION INTO A BLOOD VESSEL IN WHICH THE FLOW OF BLOOD IS TO BE MEASURED, A PROBE SLIDABLY POSITIONED WITHIN SAID CATHETER AND COMPRISING A PAIR OF SPACED APART ELECTRODES AT AN END OF SAID CATHETER, MEANS WITHIN SAID CATHETER FOR SPACING SAID ELECTRODES FURHER APART AS SAID PROBE IS ADVANCED OUTWARDLY OF SAID CATHETER END, MEANS FOR ESTABLISHING A ELECTROMAGNETIC FIELD THROUGH THE BLOOD VESSEL IN WHICH THE BLOOD FLOW IS TO BE MEASURED WHEREBY THE FLOW OF BLOOD THROUGH SAID MAGNETIC FIELD WILL INDUCED AND EMF
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |