SurgiVet Two-Part Drainage Catheter Sets. This Polyurethane catheter can be used for the drainage of fluid from the thoracic or abdominal cavity. It is generally introduced using a direct puncture technique, however it can also be introduced via dissection and a blunt trocar. Once the distal end of the trocar stylet and catheter are within the cavity, the catheter is detached from the trocar stylet and advanced off the trocar stylet and into the position. Multiple large side holes facilitate drainage of pus, blood or chyle. Radiopaque. Sterile. Sizes: TDC1030 10Fr or TDC1230 12Fr.