A kind of intravascular stent structure comprising: an ontology and a titanium oxide clad. This system is made of a metal material, and sets one of the intravascular narrow place of what one, keep unimpeded the blood vessel can. It is titanium oxide that the titanium oxide, which coats composition of layer, it is different with the metal material and cladding sets the surfaces externally and internally and side wall of the what ontology, prevent the hyperplasia Hou of the internal blood vessel from adhering to the surface of the what ontology, and it is that can reduce allergic reaction that metal ion, which is precipitated,. The intravascular inner membrance More, which can be also effectively facilitated, through the titanium oxide clad closes speed, make tube wall smoothly and then advanced thrombus is avoided to generate, to improve the reangiostenosis phenomenon that traditional bare mental stents cause, and injury of the titanium dioxide for changing titanium clad when hydrophily can be improved and reducing placement to endangium.一種血管支架結構，其包括：一本體及一鈦氧化物包覆層。該本體係由一金屬材質製成，且設於一血管內之一狹隘處，使該血管可保持暢通。該鈦氧化物包覆層成分為鈦金屬氧化物，其係與該金屬材質相異且包覆設於該本體之內外表面及側壁，防止該血管內部之細胞增生後附著於該本體之表面，且金屬離子析出係可減少過敏反應。透過該鈦氧化物包覆層亦可有效促進該血管內之內膜癒合速度，使管壁平滑進而避免晚期血栓生成，以改善傳統裸金屬支架造成之血管再狹窄現象，且改變該鈦金屬包覆層之二氧化鈦可提高親水性並降低放置時對血管內膜之傷害。
