A non-contact spray skin cooling device for laser therapy

Abstract

The invention discloses a non-contact spraying skin cooling device for laser therapy. The non-contact spraying skin cooling device comprises a refrigerating fluid storage tank which is arranged in a thermostat with a temperature control function. The refrigerating fluid storage tank is connected with a tee joint through a filling valve. One of the other two ends of the tee joint is connected with a liquid level sensor, and the last end is connected with a ball valve and a high-pressure hose. The other end of the high-pressure hose is connected with a high-speed solenoid valve. A control system driving the solenoid valve is connected to the solenoid valve. A stainless steel nozzle is connected to the output end of the solenoid valve. As an independent device, the non-contact spraying skin cooling device can be used in cooperation with a therapeutic hand tool of any laser therapeutic instrument and can also be used as a component to be integrated in any laser therapeutic instrument; the epidermis of a patient is cooled in a laser therapeutic operation, and heat injuries to epidermal tissue are effectively reduced; meanwhile, the irradiation depth of laser energy is increased, and the therapeutic effect is greatly improved.

Description

technical field [0001] The invention belongs to the field of laser skin medical treatment, in particular to a non-contact spray skin cooling device for laser treatment. Background technique [0002] PWS is a congenital vascular lesion in the dermis, which often occurs with newborns. The incidence rate in newborns can reach 0.3%-0.5%, and it is often located in the deeper dermis. In the early stage of damage, it is manifested as small erythema to large red patch, which is not higher than the skin surface. As the age increases, the color becomes darker, redder, and purple. The lesion will gradually expand and thicken, because most of them are on the face or neck. Therefore, it seriously affects the patient's appearance and daily life. [0003] Since the lesion reaches deep into the dermis, conventional treatment methods (such as cryotherapy, high-frequency electricity, common CO2 laser therapy, isotope therapy, etc.) are difficult to remove or easily leave scars. Since pulsed...

AI Technical Summary

Problems solved by technology

However, due to the presence of melanin in the epidermis, it has a greater absorption of visible light at 400-700nm, so a large part of the energy is absorbed by melanin when the laser treats deep lesions, resulting in two problems: one On the one hand, the energy reaching the lesion in the dermis is reduced, which reduces the therapeutic effect; on the other hand, the ability of melanin to absorb makes the surface skin temperature rise, which may burn normal tissues

[0005] Although the cooling effect of dynamic cooling technology is very good, and it has been successfully applied to laser treatment of skin diseases, but there are still many problems in its application

Dynamic spray cooling is greatly affected by temperature. It is prone to abnormal spraying at low temperature and bubbles at high temperature; dynamic spray cooling lacks liquid level alarm and dynamic monitoring functions; the entire dynamic spray cooling system lacks a unified, standardized, safe and effective sealing method , the above-mentioned shortcomings of these existing dynamic spray cooling will affect the safety and therapeutic effect in laser therapy surgery

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