Method and apparatus for variable waveform output in surgical la

Details Method and apparatus for variable waveform output in surgical la Method and apparatus for variable waveform output in surgical la

1995-10-31

1997-11-18

Bovernick, Rodney B.

Coherent light generators

Particular component circuitry

Optical pumping

372 25, H01S 300

Patent

active

056895208

ABSTRACT:
Variable waveform output in surgical laser is achieved by controlling power into a solid-state laser cavity. A control circuit is used to coordinate pulse energy, pulse frequency, and pulsewidth into a solid-state laser cavity to achieve a user desired waveform output. An Insulated Gate Bipolar Transistor (IGBT) or similar solid-state transistor switching device under the direction of a control circuit is used to switch energy into the solid-state laser cavity thereby modulating the pulse frequency and pulsewidth. The pulse energy is varied by varying the charge across the capacitor bank which sends energy through the IGBT to the solid-state laser cavity. By having the ability to vary the laser's output pulse frequency, pulsewidth, and pulse energy, multiple tissue effects can be achieved using one solid-state laser cavity.

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Product Prochure: VersaPulse Select: Holmium and Nd:YAG Combination laser for Urology, Coherent, Inc., copyright 1994, 8 pages, No Month.

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