Pathologist working with a specimen. According to a news article, "in only 2-10 minutes pathologists can report to waiting surgeons whether or not a patient on the operating table has cancer. Here a pathologist uses a 'microtome' to freeze a section of...
Operating room with ultraviolet light, x-ray screen, instrument table, and patient bed prepared for surgery. In 1936, Dr. J. Deryl Hart originated the use of ultraviolet radiation to control airborne infections in surgical operating rooms, a technique...
Technicians in the laboratory of Dr. Walter Kempner, professor of medicine. In the foreground is the Warburg apparatus, in which chemical reactions of surviving kidney cells are studies. In the background is a flame photometer, used for determining...
J. Deryl Hart and Dept. of Surgery surgical team in protective clothing operating on a patient under the Sterilamp, an ultraviolet light source hanging from the operating room ceiling. In 1936, Dr. J. Deryl Hart originated the use of ultraviolet...
In the late 1920s, J. Deryl Hart invented a variable pressure bed (or air mattress) to ease patient’s bed sores. Hart patented many of his inventions, which also included a pneumatic bed, an operating room supply table, and a surgical basin with a...