Indian Journal of Science and Technology
Year: 2016, Volume: 9, Issue: 1, Pages: 1-5
S. Vinurajkumar1*, V. Renuga1 , K. Nithyakalyani1 , K. Jeyanthi1 , N. Malathy2 and J. Sivaraman1
1Department of Biomedical Engineering Vel Tech Multitech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, India; [email protected], [email protected], [email protected], [email protected], [email protected] 2Department of Electronics and Instrumentation Engineering, RMK Engineering College, Chennai - 601206, Tamil Nadu, India; [email protected]
*Author For Correspondence
Department of Biomedical Engineering Vel Tech Multitech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, India; [email protected]
Objectives: This study involves the measurement of obstructions in the blood flow of an arterial system. An attempt is made to find the correlation between the pressure and flow of the blood. Methods: The obstructed area produces vascular sounds which are acquired through disturbed blood flow patterns. The measurements are carried over by audio frequency analysis of the sound observed during arterial stenosis. These sounds can be measured using piezoelectric film sensor by placing it in the wrist and mid arm in the blood flow path. Results:The sounds that initiate in the narrowed arteries is measured by non-invasive, sensitive piezoelectric film sensor that captures the vibration caused by the flow of blood inside arteries and generate appropriate waveform for different flow conditions. Conclusion: The waveforms are analyzed in spectrum analyzer and compared with the normal flow patterns and if the values deviate from normal it is concluded for occlusion or clot that happened in the blood flow passage.
Keywords: Arterial Stenosis, Blood Flow, Occlusion, Piezoelectric Film Sensor
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