Novel filter for light-proof medicinal liquid with double injection molding and preparing method thereof

Abstract

The invention discloses a novelfilter for light-proof medicinal liquid with double injection molding, comprising atransparent upper shell (4), a transparent lower shell (1), a precision medicinal liquidfiltering membrane (3) and a air filtering membrane(7), wherein a swivel wheel (11) is arranged in a infusion chamber (10) formed between the transparent upper shell (4) and the transparent lower shell (1),the swivel wheel (11) is consisted of a base (111) and several blades (112) fixed on the base (111) and extending outwardly;the transparent upper shell (4) is hermetically connected bythe upper shell protrusion (41) and the transparent lower shell (1) , a transfusion passage (42) is arranged in the tangential direction of the transparent upper shell (4) on the upper shell protrusion (41). The novel filter for light-proof medicinal liquid with double injection molding of the novel filter for light-proof medicinal liquid with double injection molding can ensure the need of clinical large flow transfusion, the effect of prolonged use is more obvious, and the structure is novel, simple and reasonable, the effect of light-proof is good, safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a novel double-layer injection-molded light-proof medicinal liquid filter and a preparation method thereof. Background technique [0002] During the infusion process, there are different requirements when using due to the different properties of the drugs. Such as some antineoplastic drugs, sodium nitroprusside for antihypertensive, some vasodilators, some water-soluble vitamins, some anti-infective fluoroquinolones, etc., need to avoid light for infusion. Illumination is an important factor affecting the stability of drugs. In order to enable patients to receive better treatment and to avoid adverse drug reactions as much as possible, it is necessary for certain drugs to be transfused against light. [0003] The mechanism of drug decomposition is complex. For example, due to the special chemical structure of some anti-tumor chemotherapy drugs, ring splitting...

AI Technical Summary

Problems solved by technology

[0004] At present, in order to meet the requirements of light-shielding for clinically used light-shielding filters, the main measures are as follows: 1. Use light-shielding sleeves to cover the liquid medicine filter that does not have light-shielding performance to achieve the light-shielding effect. Existing problems It is because the infusion sets produced by various manufacturers have different specifications and different structural forms, which lead to the difficulty of processing the light-proof cover and the compatibility of use; 2. Some use light-proofing agents in raw materials, and some even use ordinary dyes. to achieve the purpose of avoiding light

However, the light-shielding agent with a single-layer structure will dissolve into the liquid medicine during infusion, causing harm. The outsourcing light-shielding agent is troublesome, and the light-shielding effect is not good.

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