Medical Scanner

The medical scanner was a medical device utilized by Starfleet medical personnel in the 2260s. Similar in size and function to the hand scanner of the medical tricorder, the medical scanner was a small, portable unit designed to function separately from the tricorder and diagnose by means of auditory emissions.

With this device, a trained physician could diagnose an illness by scanning the patient and interpreting the sounds it produced to diagnose, for example, arthritis. (TOS: "The Deadly Years") It was phased out as integration between the scanner and the medical tricorder became more advanced and commonplace.