Patent ID: 11633509

Abstract:
To provide an ultraviolet ray irradiation device by preventing leakage of ultraviolet rays from an insertion opening through which a hand on which a glove is mounted is inserted into a sterilization chamber. The device includes: an ultraviolet ray blocking balloon disposed in an insertion opening; a pressurized gas supplying and discharging device which supplies a gas under pressure to the balloon and discharges from it; an insertion depth detection unit which outputs an insertion hand depth detection signal; a controller of an ultraviolet ray irradiation and a pressurized gas supplying and discharging, wherein the balloon forms an opening which allows an insertion and a removal of the hand before the gas is supplied, and it is inflated with the supply of the gas so as to be brought into close contact with a wrist portion of the glove, and it is deflated with a discharge of the gas.