Optimal Design of a New Strain-type Sensor for Cuff-less Blood Pressure Measurement via Finite Element Modeling and Taguchi Method

A new cuff-less blood pressure (BP) sensor is designed and optimized in this paper. This BP sensor is in a shape of a circular disc of polymer enclosing an electrode. As the sensor is attached to the wrist artery, the dynamic bending of the sensor due to small artery pulsation induces variation in the electrode strain, and then, its resistance varies. With adequate amplification to sense resistanc...