Whether for minor orthopedic or surgical procedures – often, it’s sufficient to numb only a specific area of the body. But in these so-called local or regional anesthesias, the precise placement of the catheter is critical. Until now, this has required a great deal of experience, higher doses of anesthetic, or additional X-ray imaging – all of which come with drawbacks for patients. A new project at the Institute for Circular Economy of Bio:Polymers (ibp) at Hof University of Applied Sciences aims to change that.