1. Types of medical stethoscopes
Generally, it is divided into various types by different combinations of earpieces. The flat auscultation head is often used for auscultation of high-pitched murmurs and sizes. The double-function flat head is used to detect low-frequency heart sounds, dilated sounds and third sounds, as well as the first and second heart sounds. Children's heart sounds can already be heard. The bell-shaped auscultation head is often used to auscultate the high-pitched murmur of the bass bar, and the heartbeat of the baby in the abdomen can be heard. The table-type auscultation head is often used to auscultate the pulse sound of the wrist.
2. Types of medical stethoscopes
2.1. Acoustic stethoscope
The acoustic stethoscope is the earliest stethoscope, and it is also a medical diagnostic tool familiar to most people. This stethoscope is the symbol of the doctor, who wears it around his neck every day. Acoustic stethoscopes are the most commonly used.
2.2, electronic stethoscope
The electronic stethoscope uses electronic technology to amplify the sound of the body and overcomes the high noise bug of the acoustic stethoscope. Electronic stethoscopes need to convert the sound of the sound into an electrical signal, which is then amplified and processed for optimal listening. Compared to acoustic stethoscopes, they are all based on the same physical principles.
2.3. Shooting the stethoscope
Some electronic stethoscopes have a direct audio output that can be used to connect to an external recording device, such as a laptop or mp3 recorder. These sounds are saved and judged by listening to the previously recorded sounds through a stethoscope headset.
2.4, fetal stethoscope
In fact, fetal stethoscope or fetoscope is also a kind of acoustic stethoscope, but it is beyond the ordinary acoustic stethoscope.
3. How to use a medical stethoscope
3.1, remove sundries
If the stethoscope has been left in a pocket or not maintained regularly, lint, fibers or dust from clothing may clog the stethoscope ear tubes. Regular maintenance and cleaning can prevent this from happening.
3.2. Check the tightness
The high-quality sound transmission effect of the stethoscope is related to the tightness between the stethoscope and the patient's body surface, and between the stethoscope and the ear canal of the listener. The looseness of the earpiece parts, the looseness of the y-tube, and the damage of the y-tube will affect the tightness. The better the fit, the more accurately the sound from the patient's body can be transmitted to the listener's ear. So always check the stethoscope status.
3.3. Double-sided stethoscope
When using a stethoscope with dual stethoscopes, the user needs to switch the clock face or membrane face mode of the stethoscope to use. When using the membrane face, the clock face will be closed to avoid interference. vice versa.
