公开(公告)号：US20230062912A1

公开(公告)日：2023-03-02

申请号：US17918991

申请日：2021-03-23

Applicant: NIPRO CORPORATION

Inventor： Yuki NISHIMURA ,  Yoshikazu SAITO ,  Shuntaro ITO

IPC: A61M25/10 ,  A61B18/24

Abstract: An effortless means for deflating a balloon of a catheter. A catheter system includes a catheter, a circuit for making fluid flow through the catheter, and a drive device having a bidirectionally drivable pump and a controller. The catheter includes an inflatable balloon, and a first lumen and a second lumen that allow the fluid to flow through the balloon. The controller drives the pump in a first direction to make the fluid flow from a buffer tank via a first flow path into the first lumen and to make the fluid flow out from the second lumen via a second flow path to the buffer tank, and drives the pump in a second direction opposite to the first direction to make the fluid flow from the first lumen via the first flow path into the buffer tank.