Medical sterilization packaging bag and use method thereof

Abstract

The invention discloses a medical sterilization packaging bag and a use method thereof. The medical sterilization packaging bag comprises a bag body with three sides sealed and one side open; the bag body is obtained by attaching multiple layers of porous films to one another in a multi-layer co-extrusion or layer-by-layer hot pressing mode and then conducting pore forming treatment synchronously; each layer of porous film comprises micropores with the pore diameter being 50-2000 nm and the porosity being 45-60%; and the porous films comprise at least one layer of low-temperature film which can be fused to close pores at a set temperature and / or a set pressure, and at least one layer of high-temperature film which is not fused to close pores at the set temperature and / or the set pressure. The medical sterilization packaging bag and the use method thereof have the beneficial effects that after EO sterilization, the low-temperature film is fused through heating to close the pores, so that the pores of the porous films are closed, bacteria, microorganisms, spores or harmful particles are prevented from entering the bag, and the medical sterilization packaging bag is safer and more reliable.

Description

technical field [0001] The invention belongs to the medical field, and in particular relates to a medical sterilization packaging bag and a using method thereof. Background technique [0002] At present, the medical sterilization packaging bag is mainly composed of a layer of plastic film and a layer of non-woven fabric or paper, heat-sealed on three sides to form an envelope-like packaging bag, put the medical equipment to be sterilized into the bag, and then put the fourth side Seal it and continue the subsequent sterilization steps to complete the sterilization. In the conventional sterilization procedure, ethylene oxide (EO) gas is used to diffuse and penetrate into the heat-sealed sterilization bag at a certain temperature within a certain period of time; and then let the ethylene oxide dissipate after a period of time . The above steps all require cloth or paper with a porous structure for EO to enter and exit the heat-sealed bag, and the pore size of the paper or cl...

AI Technical Summary

Problems solved by technology

However, no matter which material is used, the current medical sterilization packaging bags have air-permeable micropores, which cannot completely prevent the entry of bacteria, microorganisms, spores or harmful particles.

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