Werner Forssmann
In 1929, while working in Eberswalde, he performed the first human cardiac catheterisation. He ignored his department chief and when a nurse tried to stop him, he tied her to an operating table. Then, he anesthetized his own lower arm and inserted a cannula into his antecubital vein, threading it 65 cm all the way to his heart. Afterwards, he walked some distance to the X-ray department to photograph the catheter which was now lying in his right atrium…
