Milton D. Heifetz (1921–2015) was a leading neurosurgeon and inventor of the Heifetz aneurysm clip, the leading device of its kind during the 1970s and 1980s. Later on in his career, he became active in medical ethics, taking an early pro-euthanasia stance and writing several books on the topic. In this capacity, he was a visiting professor at Harvard University, Massachusetts, a visiting scholar at the University of Oxford and he taught a course in ethics at the Boston College Law School up until his eighties.