| 摘要 |
A medical stent (1) comprises: a main body (10) which includes a first rigid portion (20) that is formed in a tubular shape along a longitudinal axis and has a predetermined rigidity with respect to compressive force in a radial direction, and a second rigid portion (30) that has less rigidity than the first rigid portion (20), substantially coaxially extends from a base end portion of the first rigid portion (20), and is formed in a tubular shape along the longitudinal axis; and a locking member (40) which is provided on the second rigid portion (30) to lock onto tissue, and has a base end portion (42) that extends from the second rigid portion (30) and an extension portion (41) that extends from the base end portion (42) in a radially outward direction of the main body (10), in a substantially central position of the second rigid portion (30) in the direction along the longitudinal axis. |
