Stethoscope industry definition and classification

Stethoscope industry definition refers to the most commonly used diagnostic tools for internal and external women and children physicians. It is the symbol of physicians. Modern medicine begins with the invention of stethoscopes. Stethoscope has been continuously improved since its application in clinical practice on March 8, 1817, but its basic structure has not changed much. It mainly consists of the pickup part (chest piece), the conductive part (hose) and the listening part. (earpieces) composition. For more content, here is the definition and classification of the stethoscope industry.

Stethoscope industry definition and classification

Variety of stethoscopes:

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. Generally divided into multiple types by different combinations of the heads. The flat auscultation head is often used for auscultating high-pitched murmurs. The dual-function flat-shaped head is used to detect low-frequency heart sounds, the expansion sounds and the third sounds, and the 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.

Type of stethoscope:

Acoustic stethoscope

The Acoustic Stethoscope is the earliest stethoscope and a medical diagnostic tool familiar to most people. This stethoscope is a symbol of the doctor, who wears it around his neck every day. Acoustic stethoscopes are the most commonly used.

Electronic stethoscope

The electronic stethoscope uses electronic technology to amplify the body's sound, overcoming the high noise of the acoustic stethoscope. The electronic stethoscope needs to convert the electrical signal of the sound of the sound and then be amplified and processed for optimal listening. They are based on the same physical principles as acoustic stethoscopes.

The electronic stethoscope can also be recorded with a computer-assisted auscultation plan to record the heart's sound pathology or innocent heart murmurs.

Taking a stethoscope

Some electronic stethoscopes have direct audio output that can be used to connect to external recording devices, such as laptops or MP3 recorders. Save these sounds, listen to previously recorded sounds through a stethoscope headset, and the doctor can do more in-depth research, even remote diagnosis.

Fetal stethoscope

In fact, the 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 sound of the fetus in the belly of the pregnant woman. It is very beneficial for the care during pregnancy.

Doppler stethoscope

A Doppler stethoscope is an electronic device that measures the Doppler effect of reflected waves from ultrasound waves in body organs. The motion is detected as a change in frequency due to the Doppler effect, reflected waves. Therefore, Doppler stethoscopes are particularly well suited for handling moving objects such as beating hearts.

[Recommended article] Electronic stethoscope based on ZigBee wireless transmission

Solar Street Light Controller

The PV charge Controller works as a voltage regulator, its primary function is to prevent the Battery from being overcharged by the P.V array, being overly discharged by the load, or both.

Controller types:

• Single Stage controllers:

This type of controllers prevents battery overcharging by switching the PV array off when the battery voltage reaches the state of charge set point. The array and battery are automatically reconnected when the battery voltage reaches a lower value called the charge resumption.

• Pulse Width Modulation (PWM) controllers:

PWM controllers are the most common controller on the market today. These charge the battery by rapidly switching the full charging current on and off when the battery reaches a fully charged state. The length of the charging current pulse gradually decreases as battery voltage rises, reducing the average current into the battery.



Solar Street Light Controller,Solar Charger Controller,Programmable Controller,Light Controller

Delight Eco Energy Supplies Co., Ltd. , https://www.cndelight.com

Posted on