Use Nephroscope with the Clearpetra® Nephrostomy Sheath
Make sure the shaft of the nephroscope is at the least 2 Fr smaller than the sheath
Set the continuous negative aspiration at the least 200 mmhg
Use the continuous pressurized irrigation at the least 100CC/minute
Withdraw the nephroscope to the red band on the sheath to open anunimpeded channel for the passage of larger stone fragments
Advance the Sheath onto the stone and fire the laser inside the sheath whenever possible
