percutaneous nephrostomy drainage catheter sets with pigtail PUR catheter; Fr. 6, 7, 8 + 9; application as 1 step procedure - direct puncture 2-part introducer needle scalpel fig. 11 fixing wing catheter connection line - bag Percutaneous Nephrostomy Sets with Guide Wire as above, but designed for 2/3 step procedures over guide wire, with PUR pigtail catheter Fr. 6, 7, 8 +9; initial puncture needle and dilator; Fr.-sizes upon request