Patent US2929020A successfully refreshed from Google Patents.
Patent US3948248A successfully refreshed from Google Patents.
US3948248A
Expired / Lapsed
US
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Method of measuring ocular pulse
Assignee: University of Connecticut
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Filing: 1974-09-05
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Granted: 1976-04-06
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Expires: 1994-09-05
Abstract
Abstract A method of obtaining a reading of the ocular pulse in its unbiased, natural state by transmitting continuous wave ultrasonic energy to the eye from a source spaced from the eye, receiving said energy reflected back from said eye, and detecting a modulation in said relected energy caused by pulsations of said eye.
Inventors
- 👤 Joel L. Zuckerman
- 👤 Harry J. Grossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:16
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/10; A61B3/00; A61B3/10; A61B3/16; A61B3/165; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/02216
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
A method of observing pulsations in an eye comprising the steps of: positioning said eye to receive continuous wave ultrasonic energy, transmitting continuous wave ultrasonic energy to said eye from a source spaced from said eye, receiving said energy reflected back from said eye, and detecting a modulation in said reflected energy caused by a pulsation of said eye and providing a signal in response to said modulation.
Claim 2
Independent Claim
68 words
A method of observing pulsations in an eye comprising the steps of: positioning said eye to receive continuous wave ultrasonic energy, transmitting continuous wave ultrasonic energy to said eye from a source spaced from said eye, receiving said energy reflected back from said eye, and detecting a modulation in said reflected energy caused by a pulsation of said eye and providing a signal in response to said modulation.
Claim 3
Dependent Claim
45 words
The method of claim 1 wherein said transmitting step further comprises transmitting said continuous wave ultrasonic energy through a gaseous atmosphere to said eye from said source and said receiving step further comprises receiving said energy reflected back from said eye through said gaseous atmosphere.
Claim 4
Dependent Claim
40 words
The method of claim 1 wherein said detecting step comprises frequency demodulating the Doppler frequency shift in said reflected energy relative to said transmitted energy caused by said pulsation and providing a signal which is proportional to said frequency shift.
Claim 5
Dependent Claim
17 words
The method of claim 3 further comprising the step of focusing said transmitted continuous wave ultrasonic energy.
Claim 6
Dependent Claim
29 words
The method of claim 1 wherein said transmitting step comprises transmitting said energy to the surface of said eye and wherein said energy is reflected back from said surface.
Claim 7
Dependent Claim
32 words
The method of claim 1 wherein said transmitting step comprises transmitting continuous wave ultrasonic energy to two eyes concurrently and said detecting step further comprises comparing said modulations from each said eye.
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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |