US5488443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable laser apparatus for ophthalmological operation
Assignee: Nidek Co Ltd
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Filing: 1993-10-27
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Granted: 1996-01-30
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Expires: 2013-10-27
Abstract
Abstract A laser apparatus for ophthalmological operation which can be readily handled and moved extremely easily. This apparatus comprises: a laser light source; a microscope unit with an observation optical system for observing an eye to be operated; a laser light guiding optical system for guiding treatment light emitted from the laser light source toward the affected part of the eye to be operated within an observation visual field of the microscope unit; a power source housing for containing a source for supplying electrical power to the microscope unit and the laser light source; conductor cables for connecting the microscope unit and the laser light source to the power source; a base with a friction plate which can be attached to the top surface of the power source housing; and a slide device which includes a joy stick and slides the microscope unit with respect to the base by operating the joy stick.
Inventors
- 👤 Yasuo Ota
- 👤 Masanori Enomoto
- 👤 Hitoshi Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:07
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/008; A61B; A61B3/00; A61B3/10; A61B3/13; A61B3/135; A61F9/00821; A61B18/00; A61B18/18; A61B18/20; A61B2018/2015; A61B2018/2025; A61F2009/0035
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A portable laser apparatus for ophthalmological operation, comprising: an optical unit, said optical unit including i) a slit-lamp microscope unit with an observation optical system for observing an eye to be operated, ii) a laser light source secured to said slit-lamp microscope unit, iii) a laser light guiding optical system for guiding treatment light emitted from said laser light source toward an affected part of the eye to be operated within an observation visual field of said slit-lamp microscope unit; said portable laser apparatus further comprising a power source housing for containing a power source for supplying electrical power to said optical unit, said power source housing being disposed on a table; a base with a friction plate which is attached to a top surface of said power source housing; a slide device which includes a joy stick and slides said slit-lamp microscope unit with respect to said base by operating said joy stick; and conductor cables for connecting said slit-lamp microscope unit and said laser light source to said power source; said laser apparatus being made easy to carry.
Claim 2
Dependent Claim
180 words
A portable laser apparatus for ophthalmological operation, comprising: an optical unit, said optical unit including i) a slit-lamp microscope unit with an observation optical system for observing an eye to be operated, ii) a laser light source secured to said slit-lamp microscope unit, iii) a laser light guiding optical system for guiding treatment light emitted from said laser light source toward an affected part of the eye to be operated within an observation visual field of said slit-lamp microscope unit; said portable laser apparatus further comprising a power source housing for containing a power source for supplying electrical power to said optical unit, said power source housing being disposed on a table; a base with a friction plate which is attached to a top surface of said power source housing; a slide device which includes a joy stick and slides said slit-lamp microscope unit with respect to said base by operating said joy stick; and conductor cables for connecting said slit-lamp microscope unit and said laser light source to said power source; said laser apparatus being made easy to carry.
Claim 3
Dependent Claim
21 words
A laser apparatus for ophthalmological operation according to claim 1, further including a container exclusively used for carrying the laser apparatus.
Claim 4
Dependent Claim
33 words
A laser apparatus for ophthalmological operation according to claim 1, wherein said base and a top plate of said power source housing include means for detachably attaching said base on the top plate.
Claim 5
Dependent Claim
25 words
A laser apparatus for ophthalmological operation according to claim 1, wherein said top plate of said power source housing is also used as said base.
Claim 6
Dependent Claim
50 words
A laser apparatus for ophthalmological operation according to claim 1, further including a semiconductor light source for emitting an aiming beam which is provided in said slit lamp microscope unit, so that the treatment light and the aiming beam will be made coaxial with each other by a dichroic mirror.
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) | 1999-01-29 | 1999-07-31 | 2000-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-29 | 2003-07-31 | 2004-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-29 | 2007-07-31 | 2008-01-30 | $7700.00 | Window Closed / Lapsed |