Medical stethoscope applied to patients with infectious diseases

A medical stethoscope applied to an infectious disease patient comprises a stethoscope sleeve, a microphone, a stethoscope membrane, a filtering power amplifier board with a power source, a loudspeaker and a receiver, the stethoscope membrane is arranged in an inner cavity of the stethoscope sleeve, and a through hole allowing the microphone to pick up body sound of the patient is formed in the middle of the stethoscope membrane. A filtering power amplifier board with a power source is arranged between the auscultation film and the auscultation sleeve rear end cover, the microphone is connected to the signal input end of the filtering power amplifier board, the signal output end of the filtering power amplifier board with the power source is connected with one end of the loudspeaker through a wire, and a receiver for medical staff to hear sound is arranged outside the loudspeaker. The stethoscope can still be used for physical examination of a patient when a medical worker wears protective clothing, received