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.