Patent US4077399A successfully refreshed from Google Patents.
US4077399A
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Cranial transillumination device
Assignee: NEW RES AND DEV LABS Inc
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Filing: 1976-08-03
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Granted: 1978-03-07
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Expires: 1996-08-03
Abstract
Abstract Cranial transillumination device includes a shielded light source mounted in a cup-like housing and connected by an intermediate band to a similarly shielded light meter for indicating any abnormal spiral fluid accumulation on the brain.
Inventors
- 👤 Pierre L. Le Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:25
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0059; A61B5/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A cranial transillumination device comprising a first housing, said first housing being open at one end and otherwise light impervious, a light source mounted in said first housing, a second housing, said second housing being open at one end and otherwise light impervious, a light sensor mounted in said second housing, mounting means in the form of a headband connecting said first and second housings with said open ends disposed toward each other, said headband being shaped to attach on the patient's head with said light source and said light sensor juxtaposed the patient's head in line with each other so that light may pass through the patient's head from said light source to reach and be detected by said sensor, and said first and second housings being made of a material capable of fitting snugly against the head of the patient to close said open ends whereby light emitted from said light source would be detected by said light sensor for indicating any abnormal spinal fluid accumulation.
Claim 2
Dependent Claim
168 words
A cranial transillumination device comprising a first housing, said first housing being open at one end and otherwise light impervious, a light source mounted in said first housing, a second housing, said second housing being open at one end and otherwise light impervious, a light sensor mounted in said second housing, mounting means in the form of a headband connecting said first and second housings with said open ends disposed toward each other, said headband being shaped to attach on the patient's head with said light source and said light sensor juxtaposed the patient's head in line with each other so that light may pass through the patient's head from said light source to reach and be detected by said sensor, and said first and second housings being made of a material capable of fitting snugly against the head of the patient to close said open ends whereby light emitted from said light source would be detected by said light sensor for indicating any abnormal spinal fluid accumulation.
Claim 3
Dependent Claim
14 words
The device of claim 1 wherein said first and second housings are cup shaped.
Claim 4
Dependent Claim
39 words
The device of claim 1 including a light meter responsive to said light detector for providing a visual indication of the amount of light transmitted through the head, and said light meter being externally visible from said second housing.
Claim 5
Dependent Claim
14 words
The device of claim 3 wherein said first and second housings are cup shaped.
Claim 6
Dependent Claim
13 words
The device of claim 4 wherein said headband is generally U-shaped and adjustable.
Claim 7
Dependent Claim
21 words
The device of claim 5 including common power means for said light source and said light sensor and said light meter.
Claim 8
Dependent Claim
20 words
The device of claim 6 wherein said open ends of said housings are disposed for being aligned with each other.
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) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |