Medical film material

Abstract

A medical thin film material belongs to the technical field of medical supplies. The medical film material of the present invention is made up of the following substances by weight: dihexyl phthalate, dioctyl adipate, acetyl citrate, epoxy soybean oil, stearate, lubricant benzyl silicone oil, Hybrid resin composed of high melting point metallocene polypropylene and ethylene-octene copolymer, cycloolefin copolymer, maleic anhydride modified polypropylene copolymer, polyethylene naphthalate and polyethylene terephthalate Hybrid resins composed of ester block copolymers. The invention has reasonable formula, simple process, stable performance, good elasticity, low-temperature flexibility and gas permeability, and low cost. Oxygen and water vapor transmission are extremely low, and the barrier performance is good. It has excellent protection for therapeutic infusions and nutritional infusions. It can also be used as the packaging of hygroscopic powder injection drugs, which solves the problem of low barrier properties of ordinary flexible packaging films. problem. The invention is suitable for making blood and blood component storage bags.

Description

technical field [0001] The invention relates to a medical film material, which belongs to the technical field of medical supplies. Background technique [0002] Polyvinyl chloride (PVC) material itself is relatively hard. After adding plasticizers, PVC becomes soft and elastic, easy to shape and process, and can be made into medical products of various shapes. Therefore, it has become a widely used material for making medical products. [0003] The medical film produced by PVC has the following disadvantages: 1) There is a very small amount of vinyl chloride monomer remaining in PVC, which has been proven to be a carcinogen; 2) PVC products must be processed with phthalic acid Plasticizers such as dioctyl ester (DEHP), animal experiments have shown that DEHP has varying degrees of toxic effects on the reproductive system, liver, lungs, and cardiovascular systems, and poses risks to human health; 3) Some studies have proved that, PVC has an adsorption effect on some drugs, ...

AI Technical Summary

Problems solved by technology

[0003] The medical film produced by PVC has the following disadvantages: 1) There is a very small amount of vinyl chloride monomer remaining in PVC, which has been proven to be a carcinogen; 2) PVC products must be processed with phthalic acid Plasticizers such as dioctyl ester (DEHP), animal experiments have shown that DEHP has varying degrees of toxic effects on the reproductive system, liver, lungs, and cardiovascular systems, and poses risks to human health; 3) Some studies have proved that, PVC has an adsorption effect on some drugs, and the dosage is not accurate, which affects the curative effect; 4) PVC is processed with a variety of metal-containing compounds as stabilizers, which may enter the human body during the infusion process and cause harm to human health. ; 5) In order to improve the stabilizing effect of the metal stabilizer, a phosphorus-containing auxiliary stabilizer - phenylene diisooctyl phosphite, etc. was added in the processing, which increased the toxicity of PVC materials; 6) PVC will decompose and produce trace amounts during processing. 7) It is difficult to burn waste PVC, and burial will cause serious pollution to the soil, and incineration will produce hydrogen chloride and dioxin British gas, hydrogen chloride will form acid rain, and dioxin gas is a carcinogen

[0004] The use of phthalate ester (DEHP) plasticizers used in traditional medical films has been proven to be harmful to the human liver, so its use is restricted