Shanghai Sigma Hi-Tech Co

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Ultraviolet phototherapy device
[Model] Type
[Registration Certificate Number] Shanghai Food and Drug Administration (Quality) No.
Type UV phototherapy device is a series of ultraviolet light therapy devices The phototherapy instrument adopts a microprocessor-controlled small-area, modular structure ultraviolet phototherapy equipment, which is used for ultraviolet treatment of patients with psoriasis and vitiligo skin diseases.
Product Features
Using light source imported from the Netherlands, the ultraviolet spectrum is pure and the effect is excellent.
Microelectronic processor accurately completes treatment according to the input dose. After the set irradiation is completed, the lamp automatically turns off. At the same time, the microelectronic processor is equipped with a safety switch and dose input limit to ensure treatment safety.
Specially made UV-transparent acrylic glass cover to prevent patients’ skin from direct contact with the lamp.
Adopting modular design and unique rotatable irradiation components, it can conveniently provide auxiliary treatment to hands, feet and other parts, and is suitable for a variety of treatment options.
The frame is equipped with universal pulleys for easy use indoors.
Basic parameters
Input voltage/frequency/
Input power
Single module irradiation area*
Overall dimensions
Weight
Operating ambient temperature ℃ ℃
Operating environment humidity~
Weight
Lamp configuration (optional)
Light source type
Lamp type wavelength range
/ ~
/ ~
/ ~
/ ~
Number of lamps
Number of configuration types
Branch lamps
Branch lamps
Branch lamps< br/> Branch lamp
Note: Each model can be configured with up to 1 module.
What is the warranty scope and period of UV light therapy equipment?
Our company is responsible for the warranty of the phototherapy instrument for one year from the date of delivery. Except for the consumable parts of the product (light tube) or faults caused by improper use, the company provides free maintenance services during the warranty period. After the warranty period expires, our company will continue to provide paid maintenance services.
Plastic parts will yellow due to exposure to ultraviolet radiation, which is normal and is not covered by the warranty.
The product I purchased is faulty, how can I repair it?
Call the customer service department of Shanghai Sigma High-Tech Co., Ltd. and mail the product back to the Shanghai factory.
How to perform daily care and maintenance of ultraviolet phototherapy equipment?
The phototherapy device should be placed in a dry room to avoid direct sunlight.
For the needs of treatment, the working environment temperature of the phototherapy device is ℃℃. Environmental temperatures that are too high or too low may cause the phototherapy device to work abnormally and affect the treatment effect.
Keep the surface of the phototherapy device and the transparent plate of the illumination window clean. Do not leave fingerprints on the surface of the transparent plate of the illumination window, otherwise it will affect the radiation intensity of the illumination.
The phototherapy device is afraid of moisture and dust. If it is not used for a long time, please clean it and put it in the box. Store it in a place with a temperature of ℃ ~ + ℃, a relative humidity of no greater than 100, no condensation water, no corrosive gases, and a well-ventilated place. indoor.

Erythema reaction of ultraviolet rays
Ultraviolet erythema is a phototoxic reaction caused locally on the skin after ultraviolet radiation. It is also known as skin sun erythema, sunburn and skin sunburn. . It is one of the body's responses to ultraviolet radiation. Because it is visible to the naked eye, it is often used as an endpoint indicator in photobiological research.
According to the time when erythema appears after radiation, ultraviolet erythema can be divided into immediate erythema and delayed erythema. The histological changes in the skin after ultraviolet radiation are a non-specific acute inflammatory response, and the intradermal vascular reaction is the basis for the production of erythema. The changes in skin tissue caused by ultraviolet radiation in different bands are different. After radiation, the main symptoms are vasodilation, edema and neutrophil, single and cell infiltration in the dermis. The combined effect of C and D can cause a series of lesions in the epidermis and dermis at the same time, and the presence of C and C can also enhance the erythema-causing effect on the skin.
Various biological effects of ultraviolet light have certain spectral characteristics, and its erythema reaction is closely related to wavelength. Erythema reactions are generally assessed after UV exposure, a time point that is more convenient for clinical observers. The relationship between irradiation in different wavebands and erythema is different. Ultraviolet erythema formation has two peak wavelengths, located at and ~. The erythema effect is the strongest, with the erythema effect produced by .
Ultraviolet rays of different wavelengths have differences in the time, duration, fade time and color of erythema. In type I and type II skin, erythema often appears immediately after irradiation, but in most cases it is delayed erythema. The erythema is often biphasic. An immediate erythema reaction may occur at the end of the irradiation, and the erythema may partially or completely subside. And with the delayed erythema reaction occurring again after irradiation, the erythema that can be caused by treatment at the peak is completely different from the erythema caused by irradiation alone. After irradiation, erythema will not appear and can reach the peak value.
The incubation period, intensity and duration of erythema reaction are related to the radiation dose. Generally speaking, the greater the radiation dose, the shorter the incubation period, the stronger the erythema reaction (such as edematous erythema may appear, and even the formation of blisters, and the longer the duration.
The minimum erythema dose is also called the biological dose, which refers to Under certain conditions, the irradiation dose or irradiation time required to cause an erythema reaction that can be detected by the naked eye after human skin is irradiated by an ultraviolet light source. The objective index commonly used clinically to evaluate the sensitivity of skin erythema effect is, while the minimum amount of melanization is It is an objective index used to evaluate the sensitivity of skin blackening effect. Generally speaking, skin types Ⅰ~Ⅲ are prone to erythema after sun exposure and are more sensitive to ultraviolet erythema, while skin types Ⅳ~Ⅵ are prone to blackening after sun exposure. , are more sensitive to ultraviolet blackening reaction.
The sensitivity of various parts of the body to ultraviolet rays is very different, with the trunk being the most sensitive, followed by the upper limbs, medial thighs, face, neck, extended hands of the limbs, and feet. The sensitivity of the skin on the back is lower than that of the trunk, and is twice as sensitive as the palms and soles. In short, the factors that affect ultraviolet erythema include the influence of ultraviolet rays, the influence of the local skin exposed to irradiation, the influence of physiological factors, and some other factors such as Environmental factors, etc.