The structure is as follows:
The core device of the stethoscope mainly includes four parts, the pickup, amplification and filtering circuits, processing chip and Bluetooth module.
The main role of the pickup is to collect the diagnostic sound, the function is equivalent to "microphone". The amplifier and filter are "speakers" that amplify the sound. The processing chip is used to reduce the interference of the noise, to ensure that the ideal sound data.
Finally, the Bluetooth module transmits the sound signal to a computer for storage. The auscultation sound data captured by the Bluetooth stethoscope can be transferred to a computer, or it can be connected to the hospital's HIS system (Hospital Information System) to accompany the patient's medical record.?
A stethoscope is an acoustic medical device used to auscultate or listen to the internal sounds of an animal or human body. It usually has a small disk-shaped resonator placed against the chest, and two tubes connected to headphones. It is commonly used to listen to lung and heart sounds.
It is also used to listen to bowel and blood flow in arteries and veins. When used in conjunction with a sphygmomanometer, it is commonly used to measure blood pressure. Less commonly, a "mechanical stethoscope" with a rod-shaped chest piece is used to listen to internal sounds produced by machinery (e.g., the sound and vibration of worn ball bearings).
For example, the internal parts of a malfunctioning automobile engine are diagnosed by listening to the sound. Stethoscopes can also be used to check scientific vacuum chambers for leaks and for a variety of other small-scale acoustic monitoring tasks. A stethoscope that enhances the sound of auscultation is called a phonendoscope.
Expanded Information
Categories:
1. Acoustic Stethoscope
The acoustic stethoscope is the earliest of the stethoscopes, and is the diagnostic tool most people are familiar with in medical practice. This stethoscope is a symbol of the doctor, the doctor wears it around his neck every day. The acoustic stethoscope is the most commonly used.
2, electronic stethoscope
Electronic stethoscope is the use of electronic technology to amplify the body's voice, to overcome the acoustic stethoscope high noise bug. electronic stethoscope needs to convert the sound of the sound waves of the electrical signals, and then be amplified and processed to get the best listening.
In contrast to acoustic stethoscopes, they are based on the same physical principles. Electronic stethoscopes are also available with computer-assisted auscultation programs that analyze the recorded heart sounds for pathology or innocent heart murmurs.?
3. Shooting stethoscopes
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. By saving these sounds and listening to previously recorded sounds through stethoscope headphones, doctors can make more in-depth research studies or even remote diagnoses.?
4, fetal stethoscope
In fact, fetal stethoscope or fetoscope is also a kind of acoustic stethoscope, but beyond the ordinary acoustic stethoscope. Fetal stethoscope can hear the sound of the fetus in the pregnant woman's stomach. It is very beneficial for pregnancy care.
5, Doppler stethoscope
The Doppler stethoscope is an electronic device that measures the Doppler effect of reflected waves of ultrasound from within the body's organs. Motion is detected as a change in the frequency of the reflected waves due to the Doppler effect. Therefore, Doppler stethoscopes are particularly well suited to deal with moving objects, such as a beating heart.
Baidu Encyclopedia - Stethoscope