What is the purpose of the stethoscope?

Stethoscope types currently include single-use stethoscopes, dual-use stethoscopes, three-purpose stethoscopes, vertical stethoscopes, multi-purpose stethoscopes, and the latest electronic stethoscopes; colors are available in a variety of colors. It is generally divided into multiple types by different combinations of the heads. The flat auscultation head is often used for auscultation of high-pitched murmurs. The dual-function flat-shaped head is used to detect low-frequency heart sounds, expansion sounds and third sounds, and first and second heart sounds. The heart sounds of children can be heard. The bell-shaped auscultation head is often used to auscultate the bass treble and can hear the baby's heartbeat in the abdomen. The auscultation head is often used to auscultate the pulse sound of the wrist.