In the operating room binaural stethoscopes can isolate the physician from other important sounds, such as the audible warning signals produced by many electronic monitors. Anesthesiologists may need to wear a stethoscope throughout a lengthy surgery, and even relatively soft mass-produced earpieces may become painful to wear over time. In the mid-20th Century a new type of monaural stethoscope that addressed both of these problems came into use. It consisted of a diaphragm (the chestpiece), a single flexible tube, and a custom-made earpiece that was molded to fit the individual physician's outer ear. This configuration may have been introduced in 1960 as a component of the Ploss Valve. The custom earpiece shown here was made for Anthony J. DiGiovanni, M.D. (1918-2006).
Catalog Record: Custom Earpiece Contact [email protected] for catalog record.