The present invention relates to a stent and a manufacturing method thereof. The stent includes a hollow cylindrical first body portion formed by knitting a metal wire, a hollow cylindrical second body portion formed by knitting a metal wire and surrounding the first body portion, and the first A tube expanding part integrally forming both ends of the body part and the second body part； a coating inserted between the first body part and the second body part and enclosing the outside of the first body part； It is comprised including. In the stent of the present invention, there is no risk of tearing the coating even when the stent is bent, no separate connecting wire is required, the manufacturing process of the stent is simple, and the cost is not high. [Selection] Figure 1本発明は、ステント及びその製造方法に関する。前記ステントは、金属ワイヤを編んで形成される中空円筒状の第１胴体部と、金属ワイヤを編んで形成され、前記第１胴体部を取り囲む中空円筒状の第２胴体部と、前記第１胴体部と前記第２胴体部との両端を一体に形成する拡管部と、前記第１胴体部と前記第２胴体部との間に挿入され、前記第１胴体部の外側を包む被膜と、を含んで構成される。本発明のステントは、ステントを曲げる場合にも、被膜の破れる危険がなく、別の連結ワイヤが必要ではなく、ステントの製造過程が単純で且つコストが高くない。【選択図】図１
