Ultraviolet phototherapy instrument specializes in treating psoriasis and vitiligo. It is a physical therapy technique that uses ultraviolet radiation to prevent and treat diseases. Ultraviolet phototherapy is one of the effective methods to treat MF, especially early MF. Commonly used ultraviolet rays include PUVA, Broadband Ultraviolet (BB-UVB) and NB-UVB. NB-UVB has been used in clinic since 1984. Initially, it was mainly used to treat psoriasis vulgaris. Its curative effect is obviously better than BB-UVB, and it is equivalent to PUVA, but there are fewer adverse reactions.
The irradiation method of the ultraviolet therapeutic instrument is to hold the irradiation hand, open the baffle of the base, take out the connecting line between the irradiator and the base, hold the irradiation hand, and aim the ultraviolet tube at the affected part. Fixed irradiation: insert the handle of the illuminator into the groove of the base, and aim the ultraviolet lamp tube at the affected part; During the nursing period, you can take temporary leave in case of special circumstances. After irradiation, the number is displayed as "zero" and the lamp is automatically turned off. Complete the whole therapeutic growth of the irradiation instrument. If you want to use it again, the whole program must start from scratch, and the time controller has no memory function of setting the irradiation time last time. Please turn off the power switch after use, unplug the power plug, clean it and put it in the box.
The irradiation wavelength is 3 10 ~ 3 13 nm.
The initial radiation dose of vitiligo patients was 0.2J/cm2；. .
The initial radiation dose of patients with psoriasis was 0.3 J/cm2. .
If the irradiation intensity of the machine you purchased is 1 1.00mw/cm2 and the initial irradiation dose is set to 0.2J/cm2, the initial irradiation time can be calculated according to the following two methods:
1) calculation method:
According to the formula: irradiation time = irradiation dose/irradiation intensity.
Irradiation time = 200mj/cm2/11.00 MW/cm2 =18s.