stethoscope specification:

Components:

Dual head stethoscope;

Colored chest piece;

Brass chrome plated binaural;

Plastic or soft eartips;

All kinds of color available for the tube such as :black,red,green,yellow,blue,purple,pink,grey,white,etc;

Standard tubing.

Function: assist doctors auscultating the inner sound of vein,artery,heart,lung,intestines and fetal in the matrix etc

Operating method and notes:put the chestpiece of stethoscope reference to the picture as follow being brought forth(or put the chestpiece of stethoscope in the midmost arm and let the gauge clamp it).and keep the eartips of stethoscope be consistent with the direction of external acoustic meatus.Don't keep the rubber tube across and tangle up.Keep the friction between the tube and other things not existing so that the auscultation could not be disturbed by spirant;Keep the infirmary quiet for auscultation;if any breath sound disturbing auscultation,youd better let the patient stop breathing temporarily for a moment;Let the patient sit up quietly and keep bosom bare; Scrutator girds with the stethoscope exactly,make sure that eartips of stethoscope is consistent with the direction of external acoustic meatus.Let the forefinger&thumb and middle finger hold the chest piece and keep it cling on the skin of bosom.the last step is listen to the inner sound of flesh and read the numerical value as a reference to measuring.

Storage requirements: it should be depositted in indoor environment in which the temperature is between -5and+35.and no corrosive gas and excellent ventilation.it is not allowed if the relative humidity of room preponderates over 80%.