Patent ID: 7033350

Claim:
A portable laser treatment device, having a case ( 10 ); a semiconductor laser diode ( 11 ), placed inside said case ( 10 ), which irradiates laser, a condensing lens ( 12 ) installed at the front portion of said semiconductor laser diode ( 11 ); a power supply, a power switch ( 30 ), installed outside said case ( 10 ), which controls supply of power, an irradiation switch ( 31 ), which controls irradiation of laser; and a controller ( 32 ) which controls the operation of said device according to the manipulation of said switch, wherein said device comprises a distance-sensing sensor ( 40 ), installed into said case ( 10 ), for measuring the distance between a surface to be irradiated from the condensing lens ( 12 ); and said controller ( 32 ), for receiving signals from said distance-sensing sensor ( 40 ), which cuts off irradiation of laser if the distance between tissue to be irradiated from the condensing lens ( 12 ) is greater than the focal distance of said condensing lens ( 12 ).