An object of the present invention is to provide a catheter having a multilayer body, a multilayer hollow body and a multilayered hollow body improved in torque transmission force to the other end when one end is rotated to the left and right. The multi-hollow hollow body (1) of the present invention comprises a single-piece hollow body (7) with one strand wound therearound, a plurality of hollow hollow bodies (7) arranged adjacent to the inner periphery of the single hollow body (7) An inner multi-hollow hollow body (3) wound on a side opposite to the single-piece hollow body (7), a plurality of inner multi-hollow hollow bodies (3) arranged adjacent to the outer periphery of the single-piece hollow body (7) And the outer multi-hollow hollow body (5) wound on the opposite side of the single piece hollow body (7).発明が課題しようとする課題は、一端を左右に回転させた場合の他端へのトルク伝達力を向上させた多層体、多層中空体及び多層中空体を備えたカテーテルを提供することである。 本発明の多条中空体(1)は、1本の素線が巻回された単条中空体(7)と、その単条中空体(7)の内周に隣接して配置され、複数の素線が単条中空体(7)とは反対側に巻回された内側多条中空体(3)と、単条中空体(7)の外周に隣接して配置され、複数の素線が単条中空体(7)は反対側に巻回された外側多条中空体(5)とを備える。
