Professor in biomathematics. Studied in Uppsala; Postdocs in Cambridge, UK, Stony Brook, NY, and Institute Mittag-Leffler; Sabbatical at Vascular Surgery at Stanford. Author of the Springer book "Scientific Models" and inventor of several medtech surgery products such as a new by-pass design, a removable stent, a compression bandage that gives a well defined pressure, AR-solution to liver surgery, etc.