US4138191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating microscope with two pairs of stereo eye-piece lenses
Assignee: Wyeth Holdings LLC
•
Filing: 1977-04-04
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Granted: 1979-02-06
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Expires: 1997-04-04
Abstract
Abstract A combined operating microscope and illumination system having a coaxial and/or par focal light source for illumination for precise instrumentation during intraocular and other operating procedures. Stereoscopic view for a surgeon and an assistant is provided with an alternatively selective light diverting system in the assistant's light system for photographic purposes. Coaxial and par focal slit illumination are achieved by a light source movable on an arc shaped tract without reflecting light through the surgeon's lens system thereby permitting additional space for a second light system to the assistant without reducing that available to the surgeon.
Inventors
- 👤 Gholam A. Peyman
- 👤 Jeffrey E. Koziol
- 👤 Walter I. Fried
- 👤 Donald R. Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:50
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0012; G02B21/18; G02B21/20; G02B21/22; G02B21/36; G02B21/362
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
7 words
A dual stereo-microscope for performing micro-surgery comprising:
Claim 2
Dependent Claim
7 words
A dual stereo-microscope for performing micro-surgery comprising:
Claim 3
Dependent Claim
178 words
an objective lens positioned to view an operating area and on a first line effective to develop a collimated beam of light from said operating area; a first pair of stereo-lenses disposed in and normal to said collimated beam and adapted to intercept and develop a first pair of tracts of light; a first pair of stereo-eyepiece lenses mounted for observation by a surgeon of the light intercepted by said first pair of stereo-lenses; meaans defining a first light transmission path for transmitting the total light intercepted by said first stereo-lenses to said first stereo-eyepiece lenses; a second pair of stereo-lenses disposed in and on a second line normal to said collimated beam and perpendicular to said first line and adapted to intercept and develop a second pair of tracts of light; a second pair of stereo-eyepiece lenses mounted for observation by a second observer of the light intercepted by said second pair of stereo-lenses; and means defining a second light transmission path for transmitting the total light intercepted by said second stereo-lenses of said second stereo-eyepiece lenses.
Claim 4
Dependent Claim
178 words
an objective lens positioned to view an operating area and on a first line effective to develop a collimated beam of light from said operating area; a first pair of stereo-lenses disposed in and normal to said collimated beam and adapted to intercept and develop a first pair of tracts of light; a first pair of stereo-eyepiece lenses mounted for observation by a surgeon of the light intercepted by said first pair of stereo-lenses; meaans defining a first light transmission path for transmitting the total light intercepted by said first stereo-lenses to said first stereo-eyepiece lenses; a second pair of stereo-lenses disposed in and on a second line normal to said collimated beam and perpendicular to said first line and adapted to intercept and develop a second pair of tracts of light; a second pair of stereo-eyepiece lenses mounted for observation by a second observer of the light intercepted by said second pair of stereo-lenses; and means defining a second light transmission path for transmitting the total light intercepted by said second stereo-lenses of said second stereo-eyepiece lenses.
Claim 5
Dependent Claim
46 words
The microscope of claim 1 including: an auxiliary camera attached to the microscope; and light diverting means mounted in said second light transmission path and operable selectively for diverting the total light intercepted by said second pair of stereo-lenses to said camera for recording on film.
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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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |