| 摘要 |
The purpose of the present invention is to maintain high flexibility and allow a treatment instrument to project to a suitable position relative to an endoscope. The present invention provides a medical tube (1) provided with: a first lumen (4) that passes through a tube main body (2) made of a flexible material in the longitudinal direction, and forms a channel for an endoscope; a plurality of second lumens (5, 5a) that are circumferentially disposed apart from one another around the first lumen (4), pass through the tube main body (2) in the longitudinal direction and can form a channel for a treatment instrument; a first mark (12) that is provided on the inner surface near the distal end of the first lumen (4) and indicates the circumferential position of any of the second lumens (5, 5a) relative to the first lumen (4); and a second mark (13) that is provided at the proximal end of the tube main body (2) and indicates the second lumen (5a) indicated by the first mark (12). |
