If you are a doctor, then you already know the impact the stethoscope has over the way the patients perceive you. When you have a stethoscope, the patient views you as a respectable and trustworthy doctor. A stethoscope is the characteristic for any doctor who wants to be viewed as trustworthy and everyone recognize it.
However, the stethoscope besides being a tool that is being used for diagnostic, it has also been used for a long period. In 200 years ago, French doctors made a stethoscope which was meant to work like a listening tool. As many years continued, the doctors also tried to perfect this tool. The most significant perfection made on a stethoscope was from Dr Littmann who worked at Harvard School of Medicine. The doctor is an authority especially in cardiography.
Even if the stethoscopes still works in the same idea as the old instrument, they have become more precise and sophisticated. The current features are amplification system, noise reduction technology, Bluetooth and dual frequency membranes. If you are not aware of these features, then visit https://stethoscopes.ninja/stethoscopes-guide/ to know what they are all about.
Acoustic stethoscopes: this is also called classic stethoscope and it is also known as acoustic stethoscope. It works by reflecting the sound waves found in stethoscope’s tube. At the first end, there is the chest piece, and in its inside, there is a membrane which works though capturing the sound from the chest of the patient and it is transmitted within its tube.
A binaural piece is found at one side of a stethoscope and it works as bifurcate and it sends the voice into the ears of the doctor in the best condition. At an end of binaural piece, there are olives and eartips with a function of sealing conduit of the binaural piece to the ears. This is meant to prevent the sound loss.
https://stethoscopes.ninja/stethoscopes-guide/ contains information about the difference between traditional stethoscopes with Littman stethoscope. The chestpiece of a stethoscope comes with two sides of different diameter. There is the bell that has small diameter with a diaphragm that has a large diameter. The bell captures lower frequencies while diaphragm captures higher frequencies.,
However, when it comes to Littmann, they use a different method. They do have a dual frequency membrane. If you are a doctor, then you need to be able to recognize which makes it different if you want to diagnose your patients correctly.
Littmann stethoscope may capture high and low frequencies using the two sides of the chestpiece because of the dual frequency membrane. You do not have to alternate between diaphragm and the bell if you want to capture high or low frequencies. To alternate between high and low frequency, you only need to apply more or less pressure at the skin of the patient. You can use any side you want. To get low frequency sound, you need to apply light pressure (bell mode) and to get high frequency sound, then you should apply firm pressure, membrane (diaphragm mode).