求翻译：持续硬膜外麻醉下，取截石位，采用硬质输尿管镜，直视下经尿道进入膀胱，找到患侧输尿管口，用F3输尿管导管移入输尿管中作引导镜，根据电视摄像系统观察结石及激光碎石。是什么意思？

Continuous epidural anesthesia, the lithotomy position, the use of rigid ureteroscope under direct vision through the urethra into the bladder, to find the ipsilateral ureteral orifice f3 ureteral catheter moved into the ureter for the boot mirror to observe the stones under the TV camera system and

Continuous epidural anesthesia, cut stone, with hard ureter mirror, look directly into the bladder, and urethra to find the Level side ureter F 3 port, and the ureter catheter into the ureter, as the boot image, based on the TV camera systems and laser sight stone rubble.

正在翻译，请等待...

Under continuous epidural anesthesia, take the lithotomy position, the use of rigid ureteroscopy, under direct vision of the urethra into the bladder, locate the affected ureter, using F3 boot mirror in the ureter catheter into the ureter, calculus of observation under the television camera systems

Continues outside the hard membrane under the anaesthesia, takes the truncation stone position, uses the flinty ureter mirror, under looking straight ahead enters the urinary bladder after the urethra, found the trouble side ureter mouth, moves in the ureter with the F3 ureter drive pipe to do guide