PERIODIC PULSE ELECTRIC-DISCHARGE ALL-CHEMICAL HF/DF-LASER WITH CLOSED GAS-DYNAMIC CIRCUIT IS INTENDED FOR GENERATION OF COHERENT RADIATION OF INFRARED SPECTRUM.
|Generation energy in monopulse, MJ||70||50|
|Average power, W||7||5|
|Frequency of impulses repetition, Hz||150||150|
|Power consumption ,KW||1,5||1,5|
Periodic pulse electric-discharge all-chemical HF/DF-laser with closed gas-dynamic circuit is intended for generation of coherent radiation of infrared spectrum.
Components of the gas mixture - SF6, H2 (D2) - are non-toxic and non-aggressive. Reaction products are absorbed in the gas-dynamic circuit, where the pressure is lower than the atmosphere one.
Medical laser unit prototype is used as an instrument:
1. In ophthalmology Ц for enhancing eye cornea curvature;
Thickness of necrotic tissue does not exceed 5 micrometer. Healing of laser wounds is going without corneal clouding, as opposed to excimer laser keratectomy treatment.
2. In cosmetic surgery Ц for pilling, perforation and skin cut;
Practically painless cut (14x1x1 mm3) through laser subcutaneous anesthetic injection.
Healing of laser wounds on skin is going with good cosmetic effect.
|Skin of an adult man|
3. In cardiac surgery Ц for myocardium perforation and restoration of blood supply during coronary artery disease treatment.
The diameter of trans-myocardium channel was approx. 1mm, size of thermocoagulation zone approx. 20 micrometer. Expenditure of energy on perforation of one channel (<8 J) is 5 time less as opposed to CO2-laser.
|A fragment of myocardium wall of an adult man (10-14 mm)|
Pluses of HF-lasers in respect to microsurgery purposes are: shallow depth of laser exposure on bio tissue, short impulses duration and radiation safety for an operatorТs eyes.