US5835266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical microscopic system
Assignee: Topcon Corp
•
Filing: 1997-01-10
•
Granted: 1998-11-10
•
Expires: 2017-01-10
Abstract
Abstract A medical microscopic system includes an observation optical system for observing an image of a part to be observed, an electronic photographing optical system for branching a beam of light incident on the observation optical system from the observation part by a beam splitter disposed in an optical path of the observation optical system and then guiding its branched beam of light to a TV camera disposed conjugate with the observation part, and an adapter lens, disposed in an optical path between the observation part and the TV camera, for changing an optical path length which causes the TV camera and the observation part to be conjugate with each other.
Inventors
- 👤 Nobuaki Kitajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:10
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/36; G02B21/362; G02B21/0004; G02B21/0012; G02B21/02; G02B21/025; G02B21/18; G02B21/20; G02B21/22; G02B21/361; G02B7/00; G02B7/001; A; A61; A61B; A61B90/00; A61B90/20; A61B90/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
189 words
A medical microscope system comprising: an operation microscope including an observation optical system for observing an image of a part of a subject, and an electronic photographing optical system for branching a beam of light incident on said observation optical system from said part of the subject by a branching means disposed in an optical path of said observation optical system and thereafter guiding a branched beam of light to a first electronic photographing means for transmitting image signals and conjugated with said part of the subject; a supporting device for supporting said operation microscope so as to be movable forward, rearward, rightward, leftward, upward and downward; a second electronic photographing means for transmitting image signals and disposed on a ceiling of an operation room; an image signal processing unit for processing the image signals transmitted from said first and second electronic photographic means; detecting means for detecting an amount of movement of said supporting device; and a control circuit for switching over the transmitted image signals and inputting either of said image signals to said image signal processing unit based on a detection signal of said detecting means.
Claim 2
Dependent Claim
189 words
A medical microscope system comprising: an operation microscope including an observation optical system for observing an image of a part of a subject, and an electronic photographing optical system for branching a beam of light incident on said observation optical system from said part of the subject by a branching means disposed in an optical path of said observation optical system and thereafter guiding a branched beam of light to a first electronic photographing means for transmitting image signals and conjugated with said part of the subject; a supporting device for supporting said operation microscope so as to be movable forward, rearward, rightward, leftward, upward and downward; a second electronic photographing means for transmitting image signals and disposed on a ceiling of an operation room; an image signal processing unit for processing the image signals transmitted from said first and second electronic photographic means; detecting means for detecting an amount of movement of said supporting device; and a control circuit for switching over the transmitted image signals and inputting either of said image signals to said image signal processing unit based on a detection signal of said detecting means.
Claim 3
Dependent Claim
33 words
The medical microscope system of claim 1, wherein said detecting means is attached to said supporting device to detect a a position of movement in upward and downward directions of said operation microscope.
Claim 4
Dependent Claim
57 words
The medical microscope system of claim 2, wherein said supporting device comprises a supporting member and a supporting arm having one end supported by said supporting member so that the supporting arm is pivoted in upward and downward directions, and said detecting means is mounted between the one end of said supporting arm and said supporting member.
Claim 5
Dependent Claim
62 words
The medical microscope system of claim 1, wherein said supporting arm is an articulated arm comprising a plurality of arm segments pivotally connected to each other, and a joint for each arm segment, the joint being provided with a detecting means for determining a position of movement of said supporting arm, based on an amount of pivotal movement of each arm segment.
Claim 6
Dependent Claim
20 words
The medical microscope system of claim 4, wherein said detecting means is one of a rotary encoder and a potentiometer.
Claim 7
Dependent Claim
39 words
The medical microscope system of claim 1, wherein said supporting device comprises a supporting arm for supporting said operation microscope and a driving means controlled by said control circuit to drive said supporting arm in upward and downward directions.
Claim 8
Dependent Claim
131 words
The medical microscope system of claim 6, wherein said control circuit switches over from the image signal transmitted from said first electronic photographing means to the image signal transmitted from said second photographing means, based on a drive operation signal transmitted from said driving means, and inputs the image signal transmitted from said second electronic photographing means to said image processing unit, whereby a whole image of said part of the subject is observed, whereas said control circuit switches over from the image signal transmitted from said second electronic photographing means to the image signal transmitted from said first electronic photographing means, based on a drive operation signal transmitted from said driving means, and inputs the image signal transmitted from said first electronic photographing means to said image signal processing unit.
Claim 9
Dependent Claim
62 words
The medical microscope system of claim 1, wherein said supporting device comprises supporting means moveable in upward and downward directions, a coarse adjustment device controlled by said control circuit, based on an on-off signal of a foot switch, for driving said supporting means upward and downward, and a fine adjustment device for supporting and moving said supporting post slightly upward and downward.
Claim 10
Dependent Claim
139 words
The medical microscope system of claim 8, wherein said control circuit switches over from the image signal transmitted from said first electronic photographing means to the image signal transmitted from said second photographing means, based on the on-off signal of said foot switch, and inputs the image signal transmitted from said second electronic photographing means to said image processing unit, whereby a whole image of said part of the subject is observed, whereas said control circuit switches over from the image signal transmitted from said second electronic photographing means to the image signal transmitted from said first electronic photographing means, based on an operation signal of said fine adjustment device, and inputs the image signal transmitted from said first electronic photographing means to said image signal processing unit, whereby an image of said part of the subject is magnified.
Claim 11
Dependent Claim
50 words
The medical microscope system of claim 1, wherein said supporting device comprises a supporting post moveable upward and downward, a post driving means controlled by said control circuit for driving said supporting post upward and downward, and a supporting arm attached to an upper end part of said supporting post.
Claim 12
Dependent Claim
79 words
The medical microscope system of claim 10 including a foot switch, and wherein when said foot switch is turned on, said control circuit controls said post driving means to raise said supporting post, whereby said operating microscope is moved upward by a predetermined coarse distance, whereas when said foot switch is turned off, said control circuit controls said post driving means to lower said supporting post so that said operation microscope is moved downward by the predetermined coarse distance.
Claim 13
Dependent Claim
30 words
The medical microscope system of claim 11, wherein said first and second electronic photographing means are switched over to each other based on an on-off operation of said foot switch.
Claim 14
Dependent Claim
55 words
The medical microscope system of claim 11, wherein an amount of positional change of said coarse adjustment device is detected upon a given time lapse after said foot switch is turned on, and said first and second electronic photographing means are switched over to each other based on the amount of the given time lapse.
References Cited (Backward Citations)
US3566872A
Cited
US4155622A
Cited
US4443076A
Cited
US4594608A
Cited
US4812033A
Cited
US4912388A
Cited
US4871245A
Cited
US5157552A
Cited
US5074651A
Cited
JPH0381715A
Cited
US5006872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-09 | 2002-05-11 | 2002-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-09 | 2006-05-11 | 2006-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-09 | 2010-05-11 | 2010-11-10 | $7700.00 | Window Closed / Lapsed |