Demisting device for medical protective glasses and medical protective glasses

Abstract

The invention belongs to the field of medical machinery, and particularly relates to a demisting device for medical protective glasses and the medical protective glasses. The demisting device comprises a bottom film, a graphene transparent conductive film, a cover film, a magnetic suction hole, a waterproof ring, a free end, a high-temperature protection module, a power supply connecting wire, a fastener, a USB power supply interface and a mobile power supply. The graphene transparent conductive film is pasted on the bottom film; the graphene transparent conductive film is provided with the free end; the magnetic suction hole is formed in the free end; the waterproof ring is welded on the magnetic attraction hole; the graphene transparent conductive film serves as an electrode, the cover film is arranged on the graphene transparent conductive film, the high-temperature protection module is connected with one of the electrodes and forms a complete circuit with the power supply connecting wire, the USB power supply interface and the mobile power supply, and the fastener is used for fixing the power supply connecting wire and preventing power failure caused by mistaken pulling of thepower supply wire. The demisting device for the medical protective glasses is high in demisting efficiency, high in adaptability, safe and reliable.

Description

technical field [0001] The invention belongs to the field of medical machinery, and in particular relates to a defogging device for medical protective glasses and the medical protective glasses. Background technique [0002] The principle of fogging of glasses is mainly caused by the liquefaction of surrounding water vapor produced by hotter gas encountering cooler lens, also known as condensation phenomenon. From a theoretical point of view, the fogging phenomenon must meet the following conditions: 1. There is water vapor around the lens; The vapor pressure of the water vapor is low, resulting in condensation. There are several ways to defog the lens that are usually used: (1) mechanical defog: add a mechanical accessory to the protective mirror to scrape off the water droplets, but the weight is too large and unrealistic; (2) destroy the conditions for the formation of fog; a. Reduce the temperature difference: you need to place the glasses in a new environment that may...

AI Technical Summary

Problems solved by technology

[0004] To sum up, the main problems of defogging of medical protective glasses at present are: (1) ordinary medical protective glasses do not have the function of defogging, and additional defogging agents are needed to achieve the effect of defogging; (2) due to the commonly used resistance Because of the heavy weight and opacity of the wire, it can only be placed in the spectacle frame, and the lens is slowly heated by the heat conduction effect, resulting in uneven heating and slow diffusion; (3) because the resistance wire is placed in the spectacle frame, for The existing ordinary medical protective glasses cannot be used after installation and adapted to various medical glasses; (4) The safety of resistance wire heating is relatively low due to reasons such as uneven heating and slow diffusion

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