US3884236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of glaucoma treatment
Assignee: Individual
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Filing: 1973-11-12
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Granted: 1975-05-20
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Expires: 1993-11-12
Abstract
Abstract A method of glaucoma treatment utilizing the action produced by a laser beam, wherein the anterior chamber angle of a diseased eye is acted upon by laser-produced irradiation having wavelength in the range 4,500 A. to 10,600 A. and the power output from 0.1 W to 107 W, the pulse duration being from 10 8 sec. to 5.0 sec., the treatment being performed under biomicroscopic control with the help of a gonioscope, the number of laser bursts per single treatment session being not less than five.
Inventors
- 👤 Mikhail M Krasnov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:17
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/008; A61F9/00781; A61B; A61B17/00; A61B2017/00017; A61B2017/00137; A61B2017/00154; A61B2017/00172; A61F2009/00885; A61F2009/00891
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A method of glaucoma treatment using a laser means providing bursts of a pulsed coherent beam light wherein the anterior chamber angle of an eye is acted upon by said beam containing wavelengths from about 4,500 A. to 10,600 A. the power output of said laser means being from about 0.1 W to 107 W, said beam having a pulse duration of from about 10 8 sec. to about 5.0 sec., with said beam being focused into a spot about 0.05mm to 0.70mm in diameter, said treatment being performed under conventional gonioscopic control means, wherein the number of said laser bursts per single session of said treatment being not less than five.
Claim 2
Independent Claim
112 words
A method of glaucoma treatment using a laser means providing bursts of a pulsed coherent beam light wherein the anterior chamber angle of an eye is acted upon by said beam containing wavelengths from about 4,500 A. to 10,600 A. the power output of said laser means being from about 0.1 W to 107 W, said beam having a pulse duration of from about 10 8 sec. to about 5.0 sec., with said beam being focused into a spot about 0.05mm to 0.70mm in diameter, said treatment being performed under conventional gonioscopic control means, wherein the number of said laser bursts per single session of said treatment being not less than five.
Claim 3
Independent Claim
88 words
A method of glucoma treatment using a pulsed Q-switched laser means, said means producing bursts of a coherent light beam containing wavelengths from about 6,943 A. to 10,600 A., said pulse duration being from about 10 7 sec. to 10 8 sec. the power output of said laser means being from about 106 W to 107 W, and said beam being focused into a spot about 0.1mm to 0.7mm in diameter, wherein the number of said bursts per single session of said treatment is not less than five.
Claim 4
Independent Claim
88 words
A method of glucoma treatment using a pulsed Q-switched laser means, said means producing bursts of a coherent light beam containing wavelengths from about 6,943 A. to 10,600 A., said pulse duration being from about 10 7 sec. to 10 8 sec. the power output of said laser means being from about 106 W to 107 W, and said beam being focused into a spot about 0.1mm to 0.7mm in diameter, wherein the number of said bursts per single session of said treatment is not less than five.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |