(R. Lec, M. Swoboda, and H. Eisen)

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Abstract: Blood pressure, a basic cardiac diagnostic modality, has been primarily focused on the measurement of systolic and diastolic blood pressure values, and their derivatives. Drexel’s technology is based on in-house developed technology uses piezoelectric pressure sensors. Our sensors utilize a proprietary pressure sensor design approach, which leads to high fidelity transducers exhibiting large dynamic range and broad range of the detected blood pressure signal. As a result, the systolic and diastolic blood pressure magnitudes can be detected, store and analyzed. In addition, the mechanical impedance of our transducers is very high, 3-4 orders of the magnitude larger than the currently available on the market, therefore our sensors do not distort the pressure signals collected from the pressure bearing tissue surfaces, and hence they enable a high fidelity reception of the spatial and temporal shapes of the blood pressure signals. In addition, due their high sensitivity, our sensors can measure the surface pressure; therefore they do not require any pre-stress, only a light touch proving mechanical contact between the tissue bearing pressure and the sensor.

The Blood Pressure Wristwatch is a basis of Drexel spinoff funded by a private group of investors.