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Introduction to the characteristics of medical tube
The surface of the medical tube is smooth, non-toxic, tasteless and resistant to disinfection. In particular, the hose used in the body must be free of harmful soluble substances (such as lead, cadmium, arsenic, etc.). Medical materials need to be in contact with human tissues, blood and body fluids, and some may even be permanently implanted in the body. Therefore, such materials must have excellent biological substitutability (mechanical properties, functionality), biocompatibility and blood compatibility. The following basic conditions must be met:
(1) It is chemically inert and will not react in contact with body fluids.
(2) It will not cause inflammation and foreign body reaction in human tissues
(3) It does not cause cancer
(4) Allergic allergic reaction will not occur
(5) with good blood compatibility, no hemolysis, no coagulation
(6) Long-term implantation will not lose physical and mechanical properties such as tensile strength and elasticity.
(7) Do not deform when subjected to necessary disinfection measures
(8) easy to process into the required, complex shape
Introduction of main uses of polytetrafluoroethylene (PTFE&F4)
Polytetrafluoron (PTFE, Teflon, plastic king) resin, extrusion and sintering, the product has the advantages of high and low temperature resistance, high pressure resistance, corrosion resistance, non-stick fouling, good self-lubricity and so on, widely used in machinery, electronic appliances, automotive, aerospace, chemical, communication and other fields. Chemical, PETROCHEMICAL, OIL refining, CHLOR-alkali, acid, PHOSPHATE fertilizer, pharmaceutical, pesticide, chemical fiber, dyeing, coking, gas, organic synthesis, NON-ferrous smelting, iron and steel, ATOMIC energy and high purity products production (such as ionic membrane electrolysis), viscous material transport and operation, food with highly strict hygiene requirements.