Abstract: A wearable ear-mounted cardiovascular device acquires blood pressure data while applying controlled confining pressure to ear tissue and sensing arterial pulsatility with a force sensor. The waveform data are processed to extract multiple features from inflation, deflation, compression, and decompression segments, including pressures at characteristic changes in oscillation trend, oscillation amplitudes, frequency-domain descriptors, and waveform-derived statistics. Separate machine learning regression models, such as Support Vector Machines, use distinct feature sets to estimate systolic and diastolic blood pressure relative to reference arm cuff measurements. The trained models provide real-time, cuffless blood pressure values from the ear device, and can operate with stepwise compression or in a passive ear-clip configuration calibrated intermittently using external blood pressure devices.

Abstract: A wearable cardiovascular monitoring device comprises a force sensor configured for a blood pressure measurement using an ear of a human. The device is worn over the ear, with a first vise face of an ear-vise contacting one side of the ear, and a second vise face of the ear-vise contacting another side of the ear. Force is applied to ear through one or both of the vise faces and is used to measure blood pressure.

Abstract: An apparatus for monitoring biometric information blood of a user that contains a housing that includes an electropermanent magnet, a battery, a processor, and a radio transmitter. A cap is magnetically coupled to the housing when a current is passed through a coil of the electropermanent magnet thereby compressing a portion of tissue of the user between the housing and the cap. By varying the compressive force applied to the tissue, the apparatus monitors at least one of blood pressure and heart rate from the response.

Abstract: A first apparatus for monitoring biometric information blood of a user that comprises a clip having a base with two side members adapted to releasably receive a portion of a body of the user. A multi-sensor is mounted to one of said two side members. By precisely controlling a motor operably connected to a plunger, a sensor monitors at least one of blood pressure, heart rate, oxygen saturation, temperature, body motion from the response. Another apparatus includes a housing that includes an electropermanent magnet, a battery, a processor, and a radio transmitter. A cap is magnetically coupled to the housing when a current is passed through a coil of the electropermanent magnet thereby compressing a portion of tissue of the user between the housing and the cap. By varying the compressive force applied to the tissue, the apparatus monitors at least one of blood pressure and heart rate from the response.

Abstract: A wearable cardiovascular monitoring device comprises a force sensor configured for a blood pressure measurement using an ear of a human. The device is worn over the ear, with a first vise face of an ear-vise contacting one side of the ear, and a second vise face of the ear-vise contacting another side of the ear. Force is applied to ear through one or both of the vise faces and is used to measure blood pressure.