Henry Heimlich Henry Heimlich Henry Judah Heimlich (; February 3, 1920 – December 17, 2016) was an American thoracic surgeon and medical researcher. He is widely credited as the inventor of the Heimlich maneuver, a technique of abdominal thrusts for stopping choking, described in "Emergency Medicine" in 1974. He also invented the Micro Trach portable oxygen system for ambulatory patients and the Heimlich Chest Drain Valve, or "flutter valve", which drains blood and air out of the chest cavity. Heimlich was born in Wilmington, Delaware, the son of Mary (Epstein) and Philip Heimlich. His paternal grandparents were Hungarian-Jewish immigrants, and his maternal
Henry Dewar (physician) Malte-Brun. He wrote also for the "Encyclopædia Britannica", and the "Transactions" of the Royal Society of Edinburgh. He married Helen Margaret Spence (1800-1870), an American from Philadelphia, in May 1809. They had six children including James Dewar, Donald William Dewar (1825-1851), Dr Henry Andrew Dewar (1812-1861), Mary Dewar (1810-1869) (who married Dr Gilman Kimball). Henry Dewar (physician) Henry Dewar of Lassodie MD FRSE (1771–1823), originally Henry Frazer or Fraser, was a Scottish minister turned physician, known as a writer. His father was John Frazer, minister of the Associate Church at Auchtermuchty, in Fife, Scotland; his mother was Margaret Erskine. He