Abstract
Korotkoff sound sensors (KSS) are used for arterial blood pressure (AP) measurement following Korotkoff’s method [29]. The method consists of acoustic signal correlation: Korotkoff sounds, arising in a patient’s tissues when the artery is squeezed by the cuff, with the corresponding value of pneumatic pressure in this cuff. The moments of Korotkoff sound occurrence and termination characterize upper (systolic) and lower (diastolic) arterial pressure (AP) respectively. The method has a number of methods of technical implementation. The elementary implementation consists of sound registration by a mechanical phonendoscope. Important drawbacks of this implementation are low phonendoscope sensitivity, and also the fact that the pulse signals spectrum lies in a low-frequency area in which the human ear has minimum sensitivity.
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Sharapov, V. (2011). Sensors of Korotkoff Sounds. In: Piezoceramic Sensors. Microtechnology and MEMS. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15311-2_11
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DOI: https://doi.org/10.1007/978-3-642-15311-2_11
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