US3230951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of examining the hemodynamic system of a human body
Assignee: Bulova Watch Co Inc
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Filing: 1962-06-01
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Granted: 1966-01-25
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Bernard M Teschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/02416
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF EXAMINING THE HEMODYNAMIC SYSTEM OF A HUMAN BODY, COMPRISING THE STEPS OF: (A) ILLUMINATING AT EACH OF A PLURALITY OF DIFFERENT POSITIONS ON THE BODY, A LIMITED PERIPHERAL SURFACE AREA THEREOF, (B) DETECTING AT EACH OF SAID POSITIONS ONLY THE LIGHT REFLECTED FROM THE ILLUMINATED AREA TO PRODUCE A PULSATORY VOLTAGE WHICH VARIES IN ACCORDANCE WITH THE EXPANDING AND CONTRACTING BLOOD VOLUME IN THE ILLUMINATED AREA, WHEREBY THE PULSE RATE OF THE VOLTAGE IS THE SAME AT EACH OF SAID POSITIONS, BUT THE WAVE FORM OF THE VOLTAGE BEING DIFFERENT AT EACH OF SAID POSITIONS, AND (C) DISPLAYING THE WAVE FORM OF THE PULSATORY VOLTAGES OBTAINED AT SAID POSITIONS TO PRODUCE A PATTERN OF WAVE FORMS INDICATIVE OF THE CONDITION OF SAID BODY.
Claim 2
Independent Claim
126 words
THE METHOD OF EXAMINING THE HEMODYNAMIC SYSTEM OF A HUMAN BODY, COMPRISING THE STEPS OF: (A) ILLUMINATING AT EACH OF A PLURALITY OF DIFFERENT POSITIONS ON THE BODY, A LIMITED PERIPHERAL SURFACE AREA THEREOF, (B) DETECTING AT EACH OF SAID POSITIONS ONLY THE LIGHT REFLECTED FROM THE ILLUMINATED AREA TO PRODUCE A PULSATORY VOLTAGE WHICH VARIES IN ACCORDANCE WITH THE EXPANDING AND CONTRACTING BLOOD VOLUME IN THE ILLUMINATED AREA, WHEREBY THE PULSE RATE OF THE VOLTAGE IS THE SAME AT EACH OF SAID POSITIONS, BUT THE WAVE FORM OF THE VOLTAGE BEING DIFFERENT AT EACH OF SAID POSITIONS, AND (C) DISPLAYING THE WAVE FORM OF THE PULSATORY VOLTAGES OBTAINED AT SAID POSITIONS TO PRODUCE A PATTERN OF WAVE FORMS INDICATIVE OF THE CONDITION OF SAID BODY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |