Thermoplastic elastomer modified material for blood purification and circulation circuit

Abstract

The invention relates to a thermoplastic elastomer modified material for the blood purification and circulation circuit. The modified material comprises the following components in parts by weight: 100 parts of styrene thermoplastic resin, 0.1-20 parts of polypropylene, 0.1-20 parts of polyolefin elastomer and 0.1-5 parts of polyurethane elastomer. The blending and melt extrusion method is adopted to prepare the material, plasticizer and other small molecular compounds are not required to add during processing; and the thermoplastic elastomer modified material of the invention is completely non-toxic and is especially suitable for the preparation of the disposable blood purification and circulation circuit. The material of the invention can completely replace the PVC material and meet all the performance indexes of the disposable blood purification and circulation circuit.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a thermoplastic elastomer modified material for blood purification circulation loops. The modified material is specially used in the manufacture of disposable blood purification circulation loops. Background technique [0002] We know that hemodialysis is an important treatment for general uremia patients and severe kidney patients. It is known that China's kidney resources are very scarce, and more than 99% of patients still need hemodialysis to maintain and extend their lives. Statistics show that China has entered a period of frequent occurrence of kidney diseases, and more than one million severe uremia patients rely on dialysis to survive, and the number is growing at an average annual rate of 8%. At the same time, the incidence of chronic kidney disease is also showing a younger trend. Disposable blood purification circuit is a vital device component used in hemodialysis...

AI Technical Summary

Problems solved by technology

However, with the extensive and in-depth clinical application and the development of related medical science and technology, people have a deeper understanding of the potential safety hazards of PVC materials themselves, as well as various deficiencies in processing and use performance.