Portable viewable and audible stethoscope

Abstract

A portable viewable and audible stethoscope for visually and audibly monitoring the vital life signs (e.g. heart beat, lung respiration, artery pulse, intestinal sounds) of a patient. The stethoscope includes a large diameter sound absorbing cup and a small diameter sound absorbing connected to opposite ends of a tubular connector and an output device enclosed within a hand held case that is connected to a middle region of the tubular connector by a supporting tube. The tubular connector is provided with an internally installed microphone which converts the absorbed sounds to electrical signals. The output device includes an electronic circuit assembly for amplifying the signals from the microphone, an oscilloscope for displaying the signals, and a speaker for converting the signals into audible sounds. The outside of the case of the output device is provided with control switches for the oscilloscope display, speaker volume adjustment and power on/off. The case further includes a small replaceable battery to supply power to the electronic circuits. The stethoscope is simple in its structure, and can be conveniently carried. The stethoscope can be used by both professional and ordinary people and it allows the condition of a patient to be monitored visually and audibly by many surrounding people.