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Android Based Fail Safe Dual Chamber Cardiac Integrated Pacemaker Device
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In this paper, the structure and design of a microspiral-shaped piezoelectric energy harvester and it is related with microfabricated packaging that gathers energy from ordinary blood pressure variations in the cardiac environment. This device is used to for small scale reproduction of energy sources for active implantable medical devices such as leadless pacemakers. The prototype of 10μm thin and ultra-flexible electrodeposited microbellows is proposed as a new type of implant packaging. It enables direct blood pressure harvesting and allows a high efficiency of energy transfer to a transducer operating in quasi-static mode and therefore flexible and impassive by frequent heartbeat frequency changes. Spiral-shaped piezoelectric transducers are presented for their flexibility and large incoming mechanical energy. Non-trivial optimal electrodes placement and best spiral design parameters are studied and discussed. By implementing smart adapted electronic circuits, a potential additional tenfold increase in power output could be achieved, which would be sufficient to power a leadless pacemaker.
Keywords
Flexible Packaging, Energy Harvesting, Piezoelectric Spiral, Blood Pressure, Medical Device, Cardiac Implant, Leadless Pacemaker.
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