Patent US2770797A successfully refreshed from Google Patents.
Patent US3720213A successfully refreshed from Google Patents.
US3720213A
Expired / Lapsed
US
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Laser photocoagulator
Assignee: COHERENT RADIATION
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Filing: 1971-02-05
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Granted: 1973-03-13
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Expires: 1991-02-05
Abstract
Abstract A laser photocoagulator for treating a patient''s eye comprises a laser, optical means for delivering the output beam from the laser to the desired location in the eye of the patient, and wherein the laser is operated to provide a multi-mode output beam. The use of the multi-mode output laser beam enables the treatment of certain eye diseases while insuring that damage to the cornea and other parts of the eye resulting from the passage of the laser beam is prevented.
Inventors
- 👤 J Hobart
- 👤 S Jarrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:08
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/008; A61F9/00821; A61F2009/00861; A61F2009/00863; A61F9/009
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
55 words
Laser photocoagulator for treating a patient''s eye comprising: a. a gaseous laser; b. optical means for delivering the output beam from said laser and focusing the same on a desired treatment location in the eye of the patient; and c. means for operating said gaseous laser to provide a high order transverse mode output beam.
Claim 2
Dependent Claim
55 words
Laser photocoagulator for treating a patient''s eye comprising: a. a gaseous laser; b. optical means for delivering the output beam from said laser and focusing the same on a desired treatment location in the eye of the patient; and c. means for operating said gaseous laser to provide a high order transverse mode output beam.
Claim 3
Dependent Claim
55 words
Laser photocoagulator for treating a patient''s eye comprising: a. a gaseous laser; b. optical means for delivering the output beam from said laser and focusing the same on a desired treatment location in the eye of the patient; and c. means for operating said gaseous laser to provide a high order transverse mode output beam.
Claim 4
Dependent Claim
55 words
Laser photocoagulator for treating a patient''s eye comprising: a. a gaseous laser; b. optical means for delivering the output beam from said laser and focusing the same on a desired treatment location in the eye of the patient; and c. means for operating said gaseous laser to provide a high order transverse mode output beam.
Claim 5
Dependent Claim
25 words
Laser photocoagulator as in claim 1 wherein said laser includes an optical resonator assembly and wherein said operating means comprises a near confocal optical resonator.
Claim 6
Dependent Claim
14 words
Laser photocoagulator as in claim 1 wherein said laser comprises a continuous wave laser.
Claim 7
Dependent Claim
13 words
Laser photocoagulator as in claim 1 wherein said laser comprises an argon laser.
Claim 8
Dependent Claim
13 words
Laser photocoagulator as in claim 1 wherein said laser comprises an argon/krypton laser.
Claim 9
Dependent Claim
13 words
Laser photocoagulator as in claim 1 wherein said laser comprises a krypton laser.
Claim 10
Dependent Claim
18 words
Laser photocoagulator as in claim 1 wherein said operating means additionally provides a multi-order transverse mode output beam.
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |