How to handle the ureteral stent improvement and urinary system problems

摘要

The proposed invention is a kidney end (200) and the bladder end (210) ureteral stent with a (2). Kidney end section (200) is tubular, and is curved. The stent (2) is provided with the bladder end section (210) and has at least one thread, the intermediate portion of the tubular extending between the stent further kidney end and the bladder end section (220), an intermediate the outer diameter of the part becomes smaller toward the bladder end section, the minimum outer diameter of the intermediate portion (220) at the connection portion between the thread of the bladder end section (210) is substantially equal to the thread diameter, the intermediate portion length it is is characterized and it is 0.5~12cm, the.