Currently the only recognized principle of blood pressure measurement in the world's medical science is the auscultation method, and only auscultation of sphygmomanometer measurement is the most accurate, the following first to give you a brief introduction to the principle of auscultation of the measurement of the principle of auscultation:
Principle of measurement of the principle of the method of auscultation:
Audio-diagnostic method The measurement principle is currently the only recognized blood pressure measurement principle in the medical community. Currently using the auscultation method of measurement principle of sphygmomanometer medical mercury sphygmomanometer, by Thai auscultation method of automatic sphygmomanometer. These two types of sphygmomanometers are currently in use in many medical institutions, and the Yutai Stethoscopic Automated Sphygmomanometer is the best home sphygmomanometer because of its automatic pressurizing and deflating operation to measure blood pressure. It is also the best choice for a home blood pressure monitor. A good explanation of what sphygmomanometer is best, sphygmomanometer which measure accurate this problem.
The auscultation method is also known as the Koch sound method. What is the Koch sound method? Koch's tone method is the method of measuring blood pressure with Koch's tone, which is the only recognized international medicine, a blood pressure measurement and measurement method of the collective name. 1905, the Russian scholar Korotokoff reported his discovery of the Koch's tone, and proposed to hear the popping sound of the first sound corresponding to the external pressure as a systolic blood pressure, with the heart systolic blood pressure in the brachial artery formed the highest blood pressure is comparable to the disappearance of the tone; disappearance of sound (the "change tone" when the beat tone changes to the muffled tone in the absence of the disappearance tone) is recorded as the diastolic pressure, which is comparable to the lowest blood pressure in the brachial artery of the heart. This method was quickly accepted by the international medical organizations of the time and was named the Kirschner Method. This is the principle of the auscultatory method of measurement. Today the only two types of sphygmomanometers that use the principle of the auscultatory method are the traditional mercury sphygmomanometer and the automatic sphygmomanometer of the auscultatory method.
Classification of a mercury sphygmomanometer
Mercury sphygmomanometer is currently the most used in the medical field of a type of sphygmomanometer, mercury sphygmomanometer listening to the Koch sound using the principle of auscultation method of measurement.
Preparation for mercury sphygmomanometer measurement.
First, first of all, the mercury column of the mercury sphygmomanometer vertically to zero;
Second, take off the clothes or clothing sleeves thin and wide can be rolled up to the armpit (clothing to keep the upper arm relaxation can be);
Third, in the sphygmomanometer wrapped around the cuff, first of all, will be squeezed out of the air inside the cuff, and then wrapped around the elbow joint of the right upper arm on the 2 to 3 centimeters, can not be too loose or too tight. After feeling the brachial artery beating in the inner side of the elbow socket, put the head of the stethoscope on the brachial artery and pump to measure the pressure.
Fourth, close the valve on the balloon, the measurer's line of sight should be on a level with the scale on the mercury column to observe the height of the mercury column. Rapid inflation, to be felt after the disappearance of the radial artery pulse, and then pressurized 4kPa (30mmHg) can stop inflation, slightly open the gas valve, so that the mercury slowly down, when the first sound of the pulse is heard for the "high pressure", that is, systolic blood pressure. Continue to slightly deflate, the mercury slowly down to a scale on the mercury column, the sound suddenly weakened or disappeared for the "low pressure", i.e., diastolic pressure.
Fifth, the first measurement should be completely deflated, wait at least one minute, and then repeat the measurement, and take the average of the two values for the resulting blood pressure. In addition, if you want to determine whether you have high blood pressure, it is best to also take measurements at different times. It is generally believed that at least three occasional blood pressure values on different days can be designated as high blood pressure.
Sixth, organize the cuff, stethoscope, and restore the mercury column to zero off for further use.
Classification II, stethoscope automatic sphygmomanometer
Stethoscope automatic sphygmomanometer, with the same mercury sphygmomanometer, using the principle of stethoscopic measurement. At present, the representative brand of this type of sphygmomanometer is Yutai automatic sphygmomanometer by the auscultation method.
Advantage analysis:
Compare with mercury sphygmomanometer, automatic pressurization and deflation, digital display of measurement results. In the same use of auscultation measurement principle can ensure accurate measurement of blood pressure, the operation is more simple, one-button operation directly display the results, more suitable for measuring blood pressure at home.
Compare to the electronic blood pressure monitor, in the same "one button operation" simple and easy to use, because of the built-in stethoscope, listening to the Koch's voice using the auscultation method of measurement principle. It is more accurate than the oscillometric measurement principle of the electronic sphygmomanometer.
Measurement by Yutai automatic sphygmomanometer with stethoscope
Preparation for measurement by Yutai automatic sphygmomanometer with stethoscope is the same as before. When using the auscultation method automatic sphygmomanometer.
First, take off your clothes or sleeves single wide can be rolled up to the armpits (to keep the arm in a relaxed state);
Second, press the switch of the sphygmomanometer to start the sphygmomanometer.
Red color is the device switch, and blue color is shown as the start switch.
Third, after starting, it will automatically pressurize and deflate. After the measurement, the values will be automatically displayed on the screen (labeled diastolic and systolic blood pressure, as well as pulse respectively);