Self-Powered Cardiac Pacemaker Using Piezoelectric Energy Harvester

Abstract

This study offers a novel method of using the pulsatile blood flow in the superior vena cava (SVC) vein to generate energy for medical devices that are typically powered by external wires and batteries, such pacemakers. The suggested technique makes use of a micro-piezoelectric beam that is incorporated into the wires of the medical device and deforms as a result of blood flow. The electrical charges produced by this deformation can be stored to power or replenish the device. A two-stage simulation approach is used in the investigation. The first step involves modeling and analyzing the mechanical deformation of the piezoelectric beam brought on by the pulsatile blood flow using ANSYS software. The second step is simulating the transformation of this mechanical deformation into electrical energy using MATLAB software. A piezoelectric harvester with an area of can produce about 13.22 μW of power, according to the results. This amount of power is adequate to meet the energy needs of medical devices that have been implanted, possibly removing the need for routine battery replacement procedures and reducing the danger of infection. This method offers a minimally invasive and sustainable way to power implanted medical equipment, marking a major advancement in biomedical engineering.