Max Harry Weil was born in Baden, Switzerland, on Feb. 9, 1927. His parents were German Jews; his father, a businessman, was temporarily working in Switzerland. In 1936, the family emigrated from Stuttgart, Germany, to the United States, settling in New York City.
Dr. Weil attended the Bronx High School of Science and graduated from the University of Michigan in 1948, interrupting his college career to serve as a psychiatric social worker with the U.S. Army Medical Corps in 1946-47.
He received his medical degree from the State University of New York’s Downstate campus in Brooklyn in 1952 and trained in internal medicine in Cincinnati and Minneapolis. He received a doctorate in physiology from the Mayo Clinic in Rochester, Minn., in 1957.
Much of Dr. Weil’s early work was done in collaboration with Herbert Shubin, a physician who died in 1975.
Dr. Weil was a founding member of the Society of Critical Care Medicine and served as its first president, from 1970 to 1972. The latest of his more than 500 research papers was published online in April and appears this month in the journal Resuscitation. He held 19 patents, including ones for a mechanical ventilator and devices to measure physiological variables at the bedside.
He married the former Marianne Posner in 1955. They lived apart for many years, and Dr. Weil became the companion of Margery Stone, who died in 2008.
Besides Dr. Weil’s wife, of Los Angeles, survivors include two daughters from his marriage, Dr. Susan Weil Adesman of Rose Valley, Pa., an obstetrician-gynecologist, and Carol Weil of Bethesda, a medical ethicist at the National Cancer Institute; and four granddaughters.
In an interview, Susan Weil said her father took his desire to help the ill and injured with him everywhere.
“I can’t tell you the number of vacations that got interrupted because he would see an accident on the road and he would pull over,” she said. “Sometimes he’d get involved in the care of somebody. Sometimes he’d follow the ambulance. We learned to always carry a book with us because we never knew when we’d be in a hospital waiting room for five hours.”