Willem Kolff’s remarkable achievement
Willem Kolff is famously the man who first put the developing theory of therapeutic dialysis into successful practice in the most unlikely circumstances: Kampen, in the occupied Netherlands during World War II. Influenced by a patient he had seen die in 1938, and in a remote hospital to avoid Nazi sympathisers put in charge in Groningen, he undertook experiments with cellulose tubing and chemicals and then went straight on to make a machine to treat patients from 1943.