Degerming and anti-overflowing filter of medical vacuum extractor

Abstract

The invention relates to a degerming and anti-overflowing filter of a medical vacuum extractor, which is composed of two coaxial flap-type casings that are clasped with each other and degerming filter paper encapsulated in the casings, wherein the outsides of the two flap-type casings are respectively provided with an inlet pipe and an air outlet pipe in a coaxial manner. The innovative points of the invention are as follows: an anti-overflow filter element is installed radially and coaxially at one side of the two flap-type casing close to the outlet pipe, and the degerming filter paper is installed on the air inlet surface of the anti-overflow filter element. The invention has scientific and reasonable design, simple structure, good degerming and anti-overflow functions, can perform further safety and security effects on the normal use of the vacuum extractor, and can prolong service life of the vacuum extractor; and simultaneously, the degerming and anti-overflowing filter is an accessory product of the vacuum extractor which is in disposable use, when the degerming and anti-overflowing filter is polluted by liquid, only another degerming and anti-overflowing filter needs to be replaced, therefore, the degerming and anti-overflowing filter is convenient to use and satisfies the high-standard requirement of sanitation, safety and convenience of medical equipment.

Description

technical field [0001] The invention belongs to the field of medical equipment, in particular to a sterilizing anti-overflow filter for a medical negative pressure suction device. Background technique [0002] At present, negative pressure aspirators are widely used in medical clinics to suck out the dirt in the patient's chest and abdomen. Existing negative pressure aspirator is mainly made of chassis, suction pump, liquid storage bottle, catheter and controller, and controller sucks the patient's suction part through the liquid storage bottle through the suction end of catheter. Existing negative pressure suction devices generally need to be provided with an overflow prevention device in the liquid storage bottle, so as to prevent the catheter from being polluted after excessive overflow of the stored dirt. And a sterilizing filter is installed on the part of the conduit close to the chassis. The sterilizing filter is usually composed of two left and right shells coaxiall...

AI Technical Summary

Problems solved by technology

The disadvantages of the negative pressure suction device with the above structure are: when the anti-overflow device fails during use, the liquid will flow to the sterilizing filter through the catheter suction, because the existing sterilizing filter does not have waterproof function, Therefore, the liquid will directly enter the interior of the aspirator chassis after passing through the sterilizing filter, causing electrical damage inside the aspirator, thus affecting the normal use of the aspirator.

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