US4320745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optics laryngoscope
Assignee: Individual
•
Filing: 1980-01-14
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Granted: 1982-03-23
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Expires: 2000-01-14
Abstract
Abstract A laryngoscope instrument for visual inspection of the laryngeal region of the oral cavity; including a bent blade of refractory material for insertion through a mouth and into the throat an outward end of the blade being bifurkated with an opaque shield between, the two tongues thus formed, one tongue aligning with an eyepiece for observation therethrough, and the other tongue aligning with an electric lamp for illuminating the observed region.
Inventors
- 👤 Somsak Bhitiyakul
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/267; A61B1/06; A61B1/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
A laryngoscope comprising a blade with a rear extension in combination with a handle in which said extension is mounted removably, said blade and extension being formed of light transmitting material, said extension including spaced tongues, one of which transmits light to said blade and the other tongue receives images from said blade, said handle having a viewer aligned with the said other tongue and a lamp aligned with the said one tongue.
Claim 2
Dependent Claim
73 words
A laryngoscope comprising a blade with a rear extension in combination with a handle in which said extension is mounted removably, said blade and extension being formed of light transmitting material, said extension including spaced tongues, one of which transmits light to said blade and the other tongue receives images from said blade, said handle having a viewer aligned with the said other tongue and a lamp aligned with the said one tongue.
Claim 3
Dependent Claim
15 words
A device as in claim 1 wherein the handle includes opaque means separating said tongues.
Claim 4
Dependent Claim
11 words
A device as in claim 2 wherein said tongues are parallel.
Claim 5
Dependent Claim
42 words
A device as in claim 3 wherein said handle includes a hollow downward portion adapted to receive batteries and providing a handhold, said handle including an upper portion including recesses for housing said lamp, receiving said spaced tongues and an adjustable viewer.
Claim 6
Dependent Claim
20 words
A device as in claim 4, said handle and extension including means for removably retaining said extension in said handle.
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) | 1985-03-22 | 1985-09-21 | 1986-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-22 | 1989-09-21 | 1990-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-22 | 1993-09-21 | 1994-03-23 | $7700.00 | Window Closed / Lapsed |