The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2003
Filed:
May. 09, 2000
Steven C. Murray, Santa Cruz, CA (US);
Scott A. Davenport, Half Moon Bay, CA (US);
Tony D. Coleman, San Jose, CA (US);
Laserscope, San Jose, CA (US);
Abstract
A medical laser system is disclosed for generating a pulsed output beam of variable pulse duration and wavelength. The on time of the laser is the pulse duration which is generated by a Q-switch operated in a repetitive mode as a train of micropulses. According to one embodiment, a repetitively Q-switched frequency-doubled solid state laser produces an input beam which is subsequently used to excite a dye laser. An excitation source of the solid state laser is modulated to control the pulse duration of the input beam. The dye laser receives the input beam and responsively generates an output beam of adjustable wavelength having a pulse duration corresponding to the pulse duration of the input beam. The wavelength of the output beam is controlled by adjusting a tuning element of the dye laser. The dye laser is coupleable to a delivery system for directing the output laser beam to a biological tissue target. By carefully controlling the pulse duration and wavelength of the beam delivered to the target tissue, a user of the laser system may avoid or minimize damage to tissue adjacent to the target tissue.