Catheters were produced of Polystyrene (PS) and Polycaprolactone (PCL). A PolyDrive extruder system, as stand alone extruder was used with the catheter die. For stable extrusion it was necessary to use a water bath and the take off system. By varying take off speed and output different sizes of the catheter were obtained. 多功能轉(zhuǎn)矩流變儀HAAKE PolyLab OS