Patent ID: 11045093

Abstract:
A sensor unit for use in devices for simultaneous measurement of signals associated with human tissue impedance and pressure to identify human hemodynamic parameters. The sensor unit of the device attached to a skin surface segment of a human body includes a base with a recess, in which a piezoelectric element of pressure sensor is installed. The unit also has a flexible membrane mounted on the base and overlapping said recess. First and second electrodes are attached to the outer surface of the membrane. The first electrode is mounted opposite the recess and is capable of moving together with the membrane. The second immovable electrode surrounds the first electrode. A central support is mounted between the first electrode and the piezoelectric element. Connected to the electrical outputs of said sensor for measuring signals associated with human tissue impedance, the first and second electrodes are configured to enable contact with the skin surface of the human body. At the same time, the operational stability and sensitivity of sensors are increased.