Lasers
Alternate name for pulsed-wave lasers
Q-switched lasers
Laser printers
Class 1
Resistance to the flow of electricity
Impedance
Called the laser head : contains lasing medium and mirrors
Optical resonator
Function of the is to capture electrical current from active electrode and transmit back to the power unit
Return electrode
Lasers that apply the laser light intermittently to the target tissue
Pulsed-wave lasers
Cause severe eye injury
Class 3B
Cutting mode causes tissue burning with the loss of water content
Desiccation
Supplies the energy needed to increase the resonance of the lasing medium
excitation source
Safety system used in ESU monitoring impedance in the electrode stopping the current
REM
Invisible to the human eye, beam has high affinity
Carbon dioxide laser
Cause permanent eye damage
Class 4
Flow of electricity from one conductive substance to another
Direct coupling
instruments or devices that transmit the lasing energy to operative site
delivery system
Where should the ESU pencil be placed during surgery
In a non conductive safety holder
High affinity for tissue protein,greatest ability to coagulate blood vessels
ND:YAG lasers
Laser pointers and bar code scanners
Class 2
When laser light is directed at a surface,which of the following would not occur
Coagulation
Contains the control system for the laser functions and operations
Control panel and touch screen
Forcep style ESU that the circuit flows from the generator through the cable to the tips
Bipolar
Offers two wavelengths , allows separate sets of laser characteristics
KTP laser
Normally does not cause eye damage, momentarily but presents hazard if viewed
Class 3A
Use of an extremely cold probe or substance to destroy tissue
Cryosurgery
Light amplification by stimulated emission of radiation
Laser
Specific burn hazard of monopolar endoscopic surgery
Capacitive coupling