What is a stethoscope name the principle on which it works?

What is a stethoscope name the principle on which it works?

Stethoscope is a medical instrument used by doctors to listen to the sounds produced within the human body, mainly in the heart and lungs. It works on the principle of multiple reflections of sound.

How does a stethoscope work physics?

The simple device amplifies the bioacoustic signals at the surface of a patient’s body. On one side of the stethoscope chest piece is a shallow funnel capped with a diaphragm that when pressed against a patient’s body picks up tiny vibrations and generates sound waves that travel up hollow tubes to the examiner’s ears.

How does sound travel through a stethoscope?

When a doctor or nurse places a stethoscope diaphragm on a patient’s chest, sound waves traveling through the patient’s body cause the flat surface of the diaphragm to vibrate. Each wave bounces, or reflects, off the inside walls of the rubber tube, a process called multiple reflection.

On which property does the working principle of stethoscope depend?

The stethoscope works on the principle of reflection of sound, the vibration causes a diaphragm to vibrate. The diaphragm vibrates when sound occurs. These high-frequency sounds travel up the hollow plastic tubing into hollow metal earpieces and to the doctor’s ears.

What are stethoscopes made of?

The binaural pieces that run from the earplugs to the flexible tubing, the stem that runs from the flexible tubing to the chestpiece, and the chestpiece itself are made from metal (aluminum, chrome-plated brass, or stainless steel). The flexible tubing is either polyvinyl chloride or latex rubber.

How does stethoscope work explain with diagram?

—->a rubber tube which joins chest piece and two ear piece. The doctor puts the Ear piece of stethoscope into his ears and places the lung piece above the surface of patient’s body. The sound of heart beat reaches by undergoing multiple reflection of sound waves inside tube.

On which property does the working principle of a stethoscope depend?

What are the conditions for reflection of sound?

If a sound is not absorbed or transmitted when it strikes a surface, it is reflected. The law for reflection is the same as that of light, ie., the angle of incidence of a sound wave equals the angle of reflection, just as if it were produced by a ‘mirror image’ of the stimulus on the opposite side of the surface.

What is the safety precaution of stethoscope?

Do not immerse your stethoscope in any liquid, or subject it to any sterilization process. Keep your stethoscope away from extreme heat, cold, solvents and oils. Tunable diaphragms can be removed from the chestpiece and their surfaces wiped with alcohol or soapy water. Dry all parts thoroughly before reassembly.

What is the most important part of a stethoscope?

The most important parts to know are the diaphragm, which is larger, flatter side of the chest piece, and the bell, which has the smaller, concave piece with a hole in it.

What is Bell of stethoscope?

A Bell and Diaphragm The stethoscope has two different heads to receive sound, the bell and the diaphragm. The bell is used to detect low-frequency sounds and the diaphragm to detect high-frequency sounds.

What is the function of a stethoscope?

A stethoscope is used to detect and study heart, lung, stomach, and other sounds in adult humans, human fetuses, and animals. Using a stethoscope, the listener can hear normal and abnormal respiratory, cardiac, pleural, arterial, venous, uterine, fetal and intestinal sounds.

How do you use stethoscope?

A stethoscope is a medical instrument used to hear sounds made by the heart, lungs, and intestines. Using a stethoscope to hear sounds is called auscultation Medical professionals are trained to use stethoscopes, but you can learn how to use one too.

What are the parts of a stethoscope?

Facts about Stethoscopes. Stethoscopes comprise of seven different parts; the diaphragm, the chest piece, the stem (links the diaphragm to the tubing), the headset, the acoustic tubes and the earpieces. The different parts of the stethoscope are assembled by hand to ensure that every piece is airtight.

How do I use a stethoscope for blood pressure?

How to use a stethoscope for blood pressure. Before you start to inflate the cuff, place the stethoscope on your patient’s arm. Use some light pressure on the bell and then start inflating. Doing it this way gives you the opportunity to listen while the cuff is inflating.