摘要:
A medical laser device is described that generates a laser beam controllable with presets as to pulse duration, pulse repetition rate, power and energy per pulse. The device also provides presets with respect to water and air outputs. Parametric values for power, pulse duration, pulse repetition rate, and energy per pulse as well as for water and air settings may be programmed by an end user and stored as presets.
摘要:
A method and apparatus are described for controlling temperature of a fluid used with electromagnetic energy in medical and dental laser procedures. Received fluid is passed through a heat exchanger, and heat is added to or removed from the fluid depending upon a desired effect, which may be influenced by a temperature setting. Temperature of output fluid is sensed, and heating or cooling is controlled in order to maintain output fluid temperature in a desired range. Ultraviolet radiation is used to sterilize the fluid.
摘要:
A cutting device that uses electromagnetic energy to create a cutting effect on or within a target surface is disclosed. The cutting device includes an optic guide and three or more nozzles located on a body member. The nozzles direct a volume of particles of air and liquid away from the body member, and the volume of particles of air and liquid can facilitate one or more of a disruptive effect and a cooling effect on the target surface. Energy emitted from the optic guide can interact with the particles to impart disruptive forces onto or within a target surface.
摘要:
A non Q-switched erbium laser operating on the I11/2→I13/2 transition produces laser output pulses characterized by a single spike containing approximately 90% of the energy, rather than a series of multiple spikes. The laser includes an optical gain medium with erbium being the lasing species, such as an erbium doped YAG rod. The gain medium is pumped with a flashlamp, with the voltage applied to the flashlamp and the duration of the applied voltage being carefully controlled to produce the single spike laser output. Depending upon the operating conditions, the full width half maximum (FWHM) of the spikes can be varied between 0.1 and 10 microseconds. The output of the erbium has fewer than 10 transverse modes. Output from the erbium laser may be directed onto corneal tissue in a preferred corneal sculpting procedure, in which the ablation rate is limited to no more than about 3 microns per laser pulse.
摘要:
A non Q-switched erbium laser operating on the I11/2→I13/2 transition produces laser output pulses characterized by a single spike containing approximately 90% of the energy, rather than a series of multiple spikes. The laser includes an optical gain medium with erbium being the lasing species, such as an erbium doped YAG rod. The gain medium is pumped with a flashlamp, with the voltage applied to the flashlamp and the duration of the applied voltage being carefully controlled to produce the single spike laser output. Depending upon the operating conditions, the full width half maximum (FWHM) of the spikes can be varied between 0.1 and 10 microseconds. The output of the erbium has fewer than 10 transverse modes. Output from the erbium laser may be directed onto corneal tissue in a preferred corneal sculpting procedure, in which the ablation rate is limited to no more than about 3 microns per laser pulse.