Patent ID: 9161701
Filing Date: 2015-10-20
Classification: A61B

Abstract:
1. A blood pressure determination sensor comprising: a flexible housing with a lower surface and a plurality of metal sheets comprising at least a first and a second mutually isolated metal sheets, wherein the flexible housing supports the first and the second mutually isolated metal sheets on the lower surface and comprises an attaching means such that when the flexible housing is attached to a body of a patient, proximate to an artery using the attaching means, the first and the second mutually isolated metal sheets form plates of a capacitor with at least the artery as a dielectric between the plates; an inductor located in the flexible housing and electrically connected to the first and the second mutually isolated metal sheets such that the capacitor, formed when the flexible housing is attached to the body of the patient, and the inductor are interconnected to form a resonant circuit as an electronic sensor circuit, wherein a resonant frequency of the resonant circuit varies with a diameter of the artery in accordance with blood pressure; a transceiver comprising a circuit, wirelessly coupled to the resonant circuit, that generates a pressure signal corresponding to variations of the resonant frequency of the resonant circuit; and a computer comprising a processor configured to record the resonant frequency of the resonant circuit of the blood pressure determination sensor from the pressure signal and perform calculations for determination of the blood pressure of the patient using the resonant frequency of the resonant circuit.