Ureteral stent

A ureteral stent set comprising:

• a ureteral stent;
• a sleeve;
• and
• a pusher,
• wherein said ureteral stent includes:
• a first holding portion configured to prevent the stent from displacing from a kidney by hanging a junction of renal pelvis and ureter when placed in the renal pelvis;
• a second holding portion configured to prevent the stent from displacing from a bladder by hanging a ureterovesical junction when placed in the bladder;
• and
• a junction portion having a solid-core round wire which joins said first holding portion and said second holding portion,
• wherein a longitudinal direction of said round wire is substantially conforming with the ureter when placed in the ureter, and
• a tube-shaped second ureteral stent having a flow path through which urine flows, said second ureteral stent having a first holding portion configured to prevent the second stent from displacing from a kidney and a second holding portion configured to prevent the second stent from displacing from a bladder, said second stent being sized to allow the external surface of said ureteral stent is slidably fit into an internal path of said second ureteral stent;
• and
• said sleeve is configured to have a tube shape having an internal path through which said ureteral stent is guided into a human body and said first holding portion is guided into a kidney, and
• said pusher is configured to push said ureteral stent along said internal path.