- Regional Anesthesia & Pain Management
- Minimal Invasive Surgery
Central venous and arterial puncture under ultrasound has improved safety and cannula positioning and is now used as standard. However, the steep puncture angle for conventional cannulas causes the ultrasound waves at the cannula shaft not to be reflected so that they remain invisible. The tips of conventional cannulas are also poorly visible.
Against this background and despite the use of ultrasound, complications such as incorrect positioning of the guide wire, arterial punctures, haematomas and pneumothorax still occur.