Variable pulse width lasing device

Details Variable pulse width lasing device Variable pulse width lasing device

1996-11-18

2000-06-27

Shay, David M.

Surgery

Instruments

Light application

606 2, 606 3, 606 11, A61N 506

Patent

active

060801484

ABSTRACT:
A variable pulse width lasing device for selectively reducing the amount of laser energy provided during a surgical procedure is described. The device includes a central processing unit, a laser resonator, pulse width detector and a pulse modulator. The central processing unit provides a switch activation command to the modulator. The modulator also receives a laser pulse produced by the laser resonator which has an initial pulse width and a wavelength which is compatible for transmission through an optical fiber. The modulator varies the width of the laser pulse for providing an output pulse at a selected pulse width and energy level.

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"Selective Photothermolysis: Precise Microsurgery by Selective Absorption of Pulsed Radiation" by Anderson et al; Science. vol. 230: Apr. 24, 1983; pp. 524-527.
Xintec, Xintec Web Site .differential. www.xintec.com/tech.htm regarding Odyssey Ho:YAG. Oct. 8, 1996.
inrad, Model 2-018 Shutter driver specification.
inrad, Model 204-080D Damped Lithum Niobate Q-Switch specification.
FastPulse Technology, Inc., Lasermetrics Division, User's Guide For Lasermetric Model 8025 High Voltage Pulse Generator.
FastPulse Technology, Inc., Lasermetrics Division, User's Guide For KD*P & Lithium Niobate Q-Switches & Modulators for Q-Switching, Chopping & Pulse Extraction.

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