Stethoscope 1 Usage: Put the binaural earpiece into the ear and hold the listening head to the required position for diagnosis and listening;
2, according to different needs, choose the listening head you need; The multifunctional stethoscope is equipped with large and small flat listening blocks, which are mounted on a rotatable double-headed drum, and it includes a very accurate anti-stick valve.
3. Put binaural headphones in your ear.
4. Tap the diaphragm gently, and you can hear the sound, so that you can confirm that the stethoscope is in standby state.
5. If you can't hear the vibration of the diaphragm, turn the listening head to 180? When you hear a click, it means that you are in position, facing the opposite.
6. Then, pat the diaphragm with your hand. You should be able to hear the vibration at this time, which means that the stethoscope is set to work.
7. At this time, you can use this stethoscope to diagnose the patient.
How to wear a stethoscope The stethoscope is designed according to the patented ergonomic ear canal and sinus. It can comfortably fit the listener's ear canal without making you feel tired and uncomfortable. Before wearing the stethoscope, please pull the ear tube of the stethoscope outward; Tilt the metal ear canal forward, insert it into your external auditory canal, and let the ear sinus and your ear canal close tightly; Everyone's ear canal is different in size, so you can choose an appropriate ear sinus. If you wear it correctly, but the tightness between the ear sinus and the ear canal is not good and the auscultation effect is not good, please pull out the ear canal to adjust its elasticity. Improper wearing method will lead to poor auscultation effect if the sinuses and ear canal are not tightly closed. For example, if the ear tube is worn backwards, it will be completely inaudible.
Remove sundries: If the stethoscope is put in your pocket or not regularly maintained, cotton wool, fibers or clothes dust may block the ear canal of the stethoscope. Regular maintenance and cleaning can avoid the above situation.
Check the tightness: the high-quality sound transmission effect of stethoscope is related to the tightness between stethoscope and patient's body surface, stethoscope and listener's ear canal. Loose parts of the listening head, loose Y tube and damaged Y tube will all affect the sealing performance. The better the sealing, the more accurately the sound in the patient can reach the listener's ear. So always check the state of the stethoscope.
Types of stethoscopes Acoustic stethoscopes
Acoustic stethoscope is the earliest stethoscope and a medical diagnostic tool that most people are familiar with. This stethoscope is a symbol of the doctor, who hangs it around his neck every day. Acoustic stethoscope is the most commonly used.
electronic stethoscope
Electronic stethoscope uses electronic technology to amplify gross sound, which overcomes the bug of loud noise of acoustic stethoscope. Electronic stethoscope needs to convert acoustic signals and then amplify them to get the best listening effect. Compared with the acoustic stethoscope, they are all based on the same physical principle.
Electronic stethoscopes can also be used with computer-aided auscultation programs to analyze recorded heart sounds, pathological or harmless heart murmurs.
Photographic stethoscope
Some electronic stethoscopes are equipped with direct audio output, which can be used to connect external recording devices, such as laptops or MP3 recorders. Save these sounds and listen to the previously recorded sounds through the stethoscope headphones, so that doctors can further study and even diagnose them remotely.
Fetal stethoscope
In fact, fetal stethoscope or fetal mirror is also a kind of acoustic stethoscope, but it is beyond the ordinary acoustic stethoscope. The fetal stethoscope can hear the voice of the fetus in the pregnant woman's stomach. It is very beneficial to pregnancy care.
Doppler stethoscope