The present invention relates to a 1- or 3-lead oral ECG device, shaped and implemented like a household digital thermometer. The 3-lead device comprises three contact electrodes: two contact electrodes on a body of the device, configured for contact with the left and right hands; and one contact electrode on a metallic tip of the devicewhich may comprise a thermometerconfigured for contact with the mouth. The 1-lead device comprises any two of these three contact electrodes and a temperature sensor disposed in the metallic tip. A novel transformation of the three leads from the 3-lead device enables the ECG signals to be processed like a standard ECG that comprises a contact electrode in contact with the leg instead of the mouth. An oral ECG device of the invention may comprise other sensors, such as a pulse-oximetry sensor, respiratory rate sensor, skin temperature sensor, body impedance sensor, galvanic skin response sensor, and/or blood-flow sensor.

The present invention relates to a 1- or 3-lead oral ECG device, shaped and implemented like a household digital thermometer. The 3-lead device comprises three contact electrodes: two contact electrodes on a body of the device, configured for contact with the left and right hands; and one contact electrode on a metallic tip of the devicewhich may comprise a thermometerconfigured for contact with the mouth. The 1-lead device comprises any two of these three contact electrodes and a temperature sensor disposed in the metallic tip. A novel transformation of the three leads from the 3-lead device enables the ECG signals to be processed like a standard ECG that comprises a contact electrode in contact with the leg instead of the mouth. An oral ECG device of the invention may comprise other sensors, such as a pulse-oximetry sensor, respiratory rate sensor, skin temperature sensor, body impedance sensor, galvanic skin response sensor, and/or blood-flow sensor.

The present invention is a self-contained (no wires or external probes), cuffless, handheld blood pressure monitor that does not require calibration and provides results that are equivalent to a traditional cuff-based blood pressure measuring technique. It achieves this result by using various mathematical relationships between pulse wave velocity, age, height, and weight to calculate a user's SBP and DBP. Consequently, this compact device allows for a user to easily track their blood pressure throughout the course of a day/week/year without having to visit a medical office.

The present invention is a self-contained (no wires or external probes), cuffless, handheld blood pressure monitor that does not require calibration and provides results that are equivalent to a traditional cuff-based blood pressure measuring technique. It achieves this result by using various mathematical relationships between pulse wave velocity, age, height, and weight to calculate a user's SBP and DBP. Consequently, this compact device allows for a user to easily track their blood pressure throughout the course of a day/week/year without having to visit a medical office.

A sensor patch (100) configured to be positioned on a user by means of a belt, wherein the sensor patch comprises a first side (10) having an electrode (15) configured to contact the user's skin (30) and a second side (20) opposed to the first side, the second side having a curved protrusion (21) located opposite to a part on the first side (10) where the electrode (15) is positioned. In order to minimize the movement of the sensor patch with respect of the skin of the user, the invention aims to decouple the sensor patch from movement of the belt in the plane lateral to the skin, while maintaining the pressing force of the belt perpendicular to the skin of the user. A system (200) comprising the sensor patch and the belt is also provided.

A transparent device with bio-signal acquisition and feedback capabilities is provided, and includes a base that includes at least one actuator, a transparent container connected to the base, first and second electrodes disposed on the base, a body temperature sensor, a photoplethysmography (PPG) sensor module, and a bio-signal acquisition module that has an electrocardiographic (ECG or EKG) sensor function and acquires an ECG signal, a PPG signal, and a body temperature signal of the user. The bio-signal acquisition module determines physiological indices by using a preset algorithm and controls the at least one actuator to provide corresponding visual or auditory feedbacks in real time according to the physiological indices and an extended cardiac index of the user.

A transparent device with bio-signal acquisition and feedback capabilities is provided, and includes a base that includes at least one actuator, a transparent container connected to the base, first and second electrodes disposed on the base, a body temperature sensor, a photoplethysmography (PPG) sensor module, and a bio-signal acquisition module that has an electrocardiographic (ECG or EKG) sensor function and acquires an ECG signal, a PPG signal, and a body temperature signal of the user. The bio-signal acquisition module determines physiological indices by using a preset algorithm and controls the at least one actuator to provide corresponding visual or auditory feedbacks in real time according to the physiological indices and an extended cardiac index of the user.

Systems, devices, and methods for electrophysiological recording from the eye are disclosed herein. An electroretinography device can detect a biopotential signal from an eye of a subject and transmit the same to a processor. Embodiments of the present technology include one or more features directed to improving the use and operability of an electroretinography device. For example, the device can include a proximal inner surface having a recess feature for removing or receiving fluids trapped between the device and the eye. The recess feature can include one or more grooves, channels or textured surface designed to collect and direct fluids away from the space between the device and the eye. The number, shape, size, position, orientation, and other features of the grooves and channels can be varied.

Systems, devices, and methods for electrophysiological recording from the eye are disclosed herein. An electroretinography device can detect a biopotential signal from an eye of a subject and transmit the same to a processor. Embodiments of the present technology include one or more features directed to improving the use and operability of an electroretinography device. For example, the device can include features for (i) improving the quality of light stimulus delivered to the eye or (ii) providing a better fit around the eye or a contact lens worn on the eye. These features can account for anatomical differences between different subjects by either masking or accommodating such differences.

Systems, devices, and methods for electrophysiological recording from the eye are disclosed herein. An electroretinography device can detect a biopotential signal from an eye of a subject and transmit the same to a processor. Embodiments of the present technology include one or more features directed to improving the use and operability of an electroretinography device. For example, the device can include features for (i) improving the quality of light stimulus delivered to the eye or (ii) providing a better fit around the eye or a contact lens worn on the eye. These features can account for anatomical differences between different subjects by either masking or accommodating such differences.