Blood pressure measurement using Korotkoff sounds

Abstract

Blood pressure and heart rate measurement are the most commonly used parameters to determine the health of a person. This paper aims at implementing a blood pressure monitoring system using a novel approach. A digital stethoscope is designed and implemented which is used to record the Korotkoff sounds, which is utilized by the blood pressure module to determine the blood pressure of the individual. The signals from these modules are captured via DAQ cards and fed to a computer for further processing using LabVIEW software. The system shows invariance to external noise due to appropriate filtering and signal conditioning. The prototype possesses advantages of having small volume, low power consumption, and real time processing capabilities.

New algorithm of cuff-tissue-artery system modeled as the space axisymmetric problem

“…The aim of this section is to solve coupled equations (3,4,5) numerically with the finite element method. However, it is nonlinear boundary conditions that increases the difficulty of solving elastic equations.…”

“…Auscultation method [2,3,4] is detecting the appearance and disappearance of Korotkoff sound generated by dynamic deformation of the blood vessel when cuff pressure changes. Based on the change of Korotkoff sound, diastolic and systolic pressure can be determined.…”