PURPOSE: A PVC(PolyVinyl Chloride)-free medical tube, molded parts thereof, and medical treatment supplies thereof are provided to manufacture the PVC-free medical tube, the molded parts, and the medical treatment with excellent kink resistance, tenacity, transparency, and anti-adsorbability of medicine, molded part thereof, and medical treatment supplies thereof.CONSTITUTION: A PVC(PolyVinyl Chloride)-free medical tube includes cross copolymerization olefin-vinyl aromatic compounds-diene copolymer whose shore hardness is between 40A and 100A, or a composition including the same. The composition layer is obtained by adding syndiotatic1, 2-polybutadiene, and 10 to 200 parts by weight of the mixture of the syndiotatic1, the 2-polybutadiene to 100 parts by weight of cross copolymerization olefin-vinyl aromatic compounds-diene copolymer whose shore hardness is between 40A and 100A. The PVC-free medical tube is formed as one layer between the layers which are composed of either cross copolymerization olefin-vinyl aromatic compounds-diene copolymer whose shore hardness is between 40A and 100A, or a composition layer including the cross copolymerization olefin-vinyl aromatic compounds-diene copolymer.COPYRIGHT KIPO 2013본 발명은 쇼와 경도가 40A 이상 100A 이하인 크로스 공중합화 올레핀-방향족 비닐 화합물-디엔 공중합체를 포함하는 층을 적어도 한 층 가지게 되는 것을 특징으로 하는 의료용 튜브에 관한 것이다. 본 발명은 내킹크성, 강인성, 투명성, 약제의 비흡착성 등이 우수하며 무독성 폴리염화비닐(PVC)-프리 소재로 상기 수지로 사출성형된 부품과 결합하여 수액 세트, 수혈 세트, 의료용 액상 용기 세트, 의료용 카테터 등 의료용품으로 매우 유용하게 사용될 수 있다.