The medical piping member is used in a medical system that allows fluid to flow between the inside of the subject and the outside of the subject. The medical piping member is disposed outside the subject and supplies fluid from the outside of the subject to the inside of the subject. And a second piping member disposed outside the subject and for discharging fluid from the inside of the subject to the outside of the subject, the second piping member Is provided inside the first piping member. 医療用配管部材は、被検体の内部と被検体の外部との間で流体を流す医療用システムにおいて用いられ、被検体の外部に配置され、被検体の外部から被検体の内部に流体を供給するための第１の配管部材と、被検体の外部に配置され、被検体の内部から被検体の外部に流体を排出するための第２の配管部材と、を有し、第２の配管部材が第１の配管部材の内部に設けられている。
