Patent US3613666A successfully refreshed from Google Patents.
US3613666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for detecting glaucoma
Assignee: Boeing North American Inc
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Filing: 1969-08-11
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Granted: 1971-10-19
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Expires: 1989-08-11
Abstract
Abstract A light beam is directed at an eye being tested. The light is reflected to a detector. The eye is vibrated simultaneously by a vibrator placed adjacent to an eyelid. The response of the eye to the vibration as measured by the detector is calibrated to indicate pressure.
Inventors
- 👤 Milo Oldell Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:54
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/16; A61B8/00; A61B8/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A system for detecting the intraocular pressure to assist in diagnosing glaucoma, said system comprising, means for focusing a light beam onto the corneal surface of an eye, means for detecting changes in light reflected from the surface, means for being placed adjacent to an eyelid of the eye for vibrating the eye for affecting said reflected light, means associated with either said detecting means or said vibrating means calibrated as a function of eye pressure for determining the intraocular pressure of the eye under diagnosis.
Claim 2
Independent Claim
86 words
A system for detecting the intraocular pressure to assist in diagnosing glaucoma, said system comprising, means for focusing a light beam onto the corneal surface of an eye, means for detecting changes in light reflected from the surface, means for being placed adjacent to an eyelid of the eye for vibrating the eye for affecting said reflected light, means associated with either said detecting means or said vibrating means calibrated as a function of eye pressure for determining the intraocular pressure of the eye under diagnosis.
Claim 3
Dependent Claim
59 words
The combination as recited in claim 1 wherein said vibrator has a variable frequency means, for changing the frequency of said vibration until the resonance of the eye is detected, said detector means including means to indicate when said resonance occurs, said calibrated means being associated with said vibrating means for indicating the pressure within said eye at resonance.
Claim 4
Dependent Claim
57 words
The combination as recited in claim 1 wherein said vibrator means vibrates at a fixed frequency and said light detector means includes means for detecting the modulation of said light due to said vibrations, said calibrated means being associated with said detecting means for indicating the pressure within the eye as a function of said light modulation.
Claim 5
Dependent Claim
72 words
A process for measuring the intraocular pressure within an eye as an aid in diagnosing glaucoma, said process comprising the steps of: directing a focused light beam onto the corneal surface of an eye, detecting light reflected from said corneal surface, vibrating said eye for changing the amount of reflected light, reading the intraocular pressure as a function of said change in reflected light to determine pressure within the eye under diagnosis.
Claim 6
Dependent Claim
72 words
A process for measuring the intraocular pressure within an eye as an aid in diagnosing glaucoma, said process comprising the steps of: directing a focused light beam onto the corneal surface of an eye, detecting light reflected from said corneal surface, vibrating said eye for changing the amount of reflected light, reading the intraocular pressure as a function of said change in reflected light to determine pressure within the eye under diagnosis.
Claim 7
Dependent Claim
62 words
The process as recited in claim 4 wherein the frequency of the vibration is changed until a relatively large change in the amount of reflected light is detected indicating resonance of the eye, the frequency of said vibration being calibrated to read pressure of the eye so that at resonance, the intraocular pressure is read as a function of the resonant frequency.
Claim 8
Dependent Claim
32 words
The process as recited in claim 4 wherein the frequency of said vibrations is fixed and the modulation of said reflected light is detected and calibrated to read pressure of the eye.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |