US5054906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indirectly illuminating ophthalmological speculum
Assignee: Nelson Tool and Machine Company Inc
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Filing: 1986-01-17
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Granted: 1991-10-08
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Expires: 2006-01-17
Abstract
Abstract An ophthalmological apparatus for opening the eyelids to permit access to the eye, and for illuminating the eye, primarily suited for ophthalmological procedures upon the surface of the eye. In one embodiment, a pair of optical fibers is provided along the arms of a speculum.
Inventors
- 👤 William G. Lyons, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:18
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/0008; A61B17/00; A61B17/02; A61B17/0231; A61B3/10; A61B3/12; A61B90/00; A61B90/30; A61B2090/306
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
Ophthalmological apparatus comprising: means for urging a pair of eyelids open without obstructing access to the eye so that a surgical procedure may be performed thereon; and eye illuminating means mounted to said eyelid opening means positioned to direct light substantially tangential to the surface of an eye.
Claim 2
Dependent Claim
48 words
Ophthalmological apparatus comprising: means for urging a pair of eyelids open without obstructing access to the eye so that a surgical procedure may be performed thereon; and eye illuminating means mounted to said eyelid opening means positioned to direct light substantially tangential to the surface of an eye.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said eye illuminating means includes an optical fiber.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1 wherein said eye illuminating means includes a plurality of optical fibers.
Claim 5
Dependent Claim
50 words
The apparatus of claim 3 wherein said eyelid opening means includes a first arm; a second arm pivotally connected to said first arm; means for urging said first and second arms apart, mounted to the arms; and means for regulating the separation of said first arm from said second arm.
Claim 6
Dependent Claim
50 words
The apparatus of claim 1 wherein said eyelid opening means includes a first arm; a second arm pivotally connected to said first arm; means for urging said first and second arms apart, mounted to the arms; and means for restricting the separation of said first arm from said second arm.
Claim 7
Dependent Claim
46 words
The apparatus of claim 4 wherein a first optical fiber is rigidly affixed to said first arm; and a second optical fiber is flexibly affixed to said second arm, so that said second optical fiber permits pivotal motion of said second arm about said first arm.
Claim 8
Dependent Claim
19 words
The apparatus of claim 6 wherein said eye illuminating means includes means for detachably connecting to a light source.
Claim 9
Dependent Claim
19 words
The apparatus of claim 1 wherein said eye illuminating means includes means for detachably connecting to a light source.
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) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |