Cryoablation device for dermatological department

Abstract

The verruca plantaris freezing device comprises a handle assembly, a freezing pipe assembly, a suction assembly and a control device, the upper portion of the handle assembly is connected with the freezing pipe assembly, the suction assembly is arranged on the rear portion of the freezing pipe assembly, and the control device is arranged in the handle assembly; the freezing pipe assembly comprises a vacuum pipe and a freezing pipe which are concentrically arranged, the outer side of the freezing pipe is integrally sleeved with the vacuum pipe, heat preservation is conducted on the freezing pipe, an air bag is arranged on the front portion of the freezing pipe, and when the air bag expands, a bowl-shaped contact face is formed and makes full contact with plantar warts; a gas outlet is formed in the rear portion of the freezing pipe, a pressure limiting valve is arranged in the gas outlet, and when the pressure in the freezing pipe reaches a certain value, the pressure limiting valve is opened, and gasified nitrogen is slowly released; through the design of the freezing assembly, the gasification speed of the liquid nitrogen can be controlled, so that the freezing process is controlled, and the situation that the operation process cannot be adjusted due to the too high freezing speed of the liquid nitrogen is avoided.

Description

technical field [0001] The invention relates to a cryoablation device for dermatology, in particular to a controllable plantar wart freezer device capable of preventing incidental damage. Background technique [0002] Plantar warts are a kind of warts that occur on the soles of the feet. They are mostly caused by human papillomavirus infection. They can be inoculated and infected by themselves through small damages on the skin, and more and more of them will cause discomfort to patients. At present, a commonly used method of physical therapy is to use liquid nitrogen cryotherapy. The main principle is to apply liquid nitrogen to the plantar wart, and use the liquid nitrogen to vaporize and absorb heat to freeze and necrosis the plantar wart, so that the scab falls off. The current method of operation is usually to directly apply liquid nitrogen on the plantar wart with a syringe or other instruments. In order to reduce the possibility of recurrence, the application is usuall...

AI Technical Summary

Problems solved by technology

The current method of operation is usually to use a syringe or other instruments to directly apply liquid nitrogen on the plantar wart. In order to reduce the possibility of recurrence, the scope of application is usually large, and some surrounding tissues will be frostbitten together, which aggravates the pain of the patient.

And liquid nitrogen is directly exposed to the air, and its vaporization is fast. Although it can quickly generate low temperature, it cannot be frozen for a long time. Rapid freezing is not conducive to the adjustment of the doctor. If you need to extend the freezing time, you need to apply liquid nitrogen again. This time not only caused waste, but also further damaged the surrounding healthy skin

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