Patent US5589938A successfully refreshed from Google Patents.
Patent US4724835A successfully refreshed from Google Patents.
US4724835A
Expired / Lapsed
US
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Laser therapeutic device
Assignee: PAIN SUPPRESSION LABS Inc
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Filing: 1986-07-25
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Granted: 1988-02-16
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Expires: 2006-07-25
Abstract
Abstract Laser therapeutic apparatus irradiates an area of cutaneous and/or subcutaneous physical injury, with a pulsed laser wave, producing healing and pain reduction. A pulsed laser beam of desired frequency is produced by reducing the output of an oscillator via a frequency multiplier which is varied in accordance with the off-nominal frequency deviation desired, if any. The rate multiplier output wave is divided down to a selected frequency and, after amplification, generates pulsed lasing energy. In accordance with varying aspects of the instant invention, a plurality of output lasing units, and optical diffusing lenses, are provided for controlled irradiation of an entire injured area. Circuitry is also provided for detecting pulsed infrared light.
Inventors
- 👤 Saul Liss
- 👤 Bernard S. Liss
- 👤 Sam Krakower
- 👤 Ilya Feygin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:30
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/4257; A; A61; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0616; H; H01; H01S; H01S5/00; H01S5/0014; A61N2005/065; A61N2005/0664; A61N2005/0665; A61N5/067; G01J2001/4238
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A circuit for operating a laser therapeutic device comprising: a power source; an oscillator connected to said power source for providing an output of a predetermined frequency; a rate multiplier having a count input connected to the output of said oscillator, said rate multiplier having a second input for receiving a rate multiplication control variable and an output, the frequency of the output of said rate multiplier being a function of the rate multiplication control variable received; a frequency deviation register coupled to said second input of said rate multiplier, said register supplying said rate multiplication control variable to control the frequency output of said rate multiplier; a binary counter having an input connected to the output of said rate multiplier and an output; a regenerating circuit having an input connected to the output of said binary counter and output means for providing a regenerated rectangular pulse train; and an output stage including an infrared laser diode, said output stage having an input connected to the output of said regenerating circuit to receive the pulse train generated by said regenerating circuit to activate said diode upon the receipt of each pulse.
Claim 2
Dependent Claim
191 words
A circuit for operating a laser therapeutic device comprising: a power source; an oscillator connected to said power source for providing an output of a predetermined frequency; a rate multiplier having a count input connected to the output of said oscillator, said rate multiplier having a second input for receiving a rate multiplication control variable and an output, the frequency of the output of said rate multiplier being a function of the rate multiplication control variable received; a frequency deviation register coupled to said second input of said rate multiplier, said register supplying said rate multiplication control variable to control the frequency output of said rate multiplier; a binary counter having an input connected to the output of said rate multiplier and an output; a regenerating circuit having an input connected to the output of said binary counter and output means for providing a regenerated rectangular pulse train; and an output stage including an infrared laser diode, said output stage having an input connected to the output of said regenerating circuit to receive the pulse train generated by said regenerating circuit to activate said diode upon the receipt of each pulse.
Claim 3
Dependent Claim
15 words
The circuit as claimed in claim 1, wherein said regenerating circuit comprises a Schmitt trigger.
Claim 4
Dependent Claim
24 words
The circuit as claimed in claim 1, wherein said binary counter includes multiple divider stages and means for selecting one of said multiple stages.
Claim 5
Dependent Claim
50 words
The circuit as claimed in claim 1, wherein said output stage includes an electronic switch having a power input connected to a power source, a control input and an output connected to said laser diode, the control input of said electronic switch receiving said pulse train from said regenerating circuit.
Claim 6
Dependent Claim
16 words
The circuit as claimed in claim 4, wherein said electronic switch comprises a field effect transistor.
Claim 7
Dependent Claim
22 words
The circuit as claimed in claim 1, further including a frequency doubling circuit disposed between said regenerating circuit and said output stage.
Claim 8
Dependent Claim
69 words
The circuit as claimed in claim 6, wherein said frequency doubling circuit comprises an exclusive OR gate having a first input connected to said output of said regenerating circuit and a second input connected to the output of said regenerating circuit through an integrating circuit to delay in time the arrival of the pulse train to said second input and thereby double the output of said frequency doubler circuit.
References Cited (Backward Citations)
US3296594A
Cited
US3315680A
Cited
US3456651A
Cited
US3364497A
Cited
US3518418A
Cited
US3410203A
Cited
US3806829A
Cited
US3818914A
Cited
US3848970A
Cited
US3900034A
Cited
US3902502A
Cited
US4232678A
Cited
US4243951A
Cited
US4319203A
Cited
US4359773A
Cited
US4385386A
Cited
US4396285A
Cited
US4468773A
Cited
US4472807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |