 Dr. Y then placed a 0.035 guidewire into the ureter after removing the 4-French catheter and then placed a 4.7-French double-J catheter into the ureter as far as it would go allowing it to coil in the bladder. 
Dr. Y then placed a 0.035 guidewire into the ureter after removing the 4 - French catheter and then placed a 4.7 - French double - J catheter into the ureter as far as it would go allowing it to coil in the bladder .