[Technical aspects of parenteral feeding].

The following approaches to the caval vein are applicable: Vena saphena, respectively femoralis, vena basilica, subclavia respectively anonyma and vena jugularis. Based on collective studies from literature and own experience the puncture of the internal jugular vein is recommended. The approach via the veins of lower extremities is to be used no more on adults. Numerous complications, however, are independent of the approach. They may be caused by the catheter model applied or by poor application technique. A model of our own was developed presenting siliconized polyethylene and a removable needle as main features. The material of the catheter proved to be neutral towards tissue experimentally and clinically. As compared to PVC the rate of inflammation and thrombosis was significantly decreased. Finally the removable split needle prevents catheter embolization with its grave consequence.