The disclosed apparatus, systems and methods relate to ocular surface potential difference (OSPD) measurement, and in particular, to the devices, methods, and design principles allowing for such measurement and the use of the measured OSPD in various research and clinical settings.

Secure, integrated, personalized smart information management and exchange systems, methods and devices are disclosed to increase the quality of professional services and reduce the cost of operations. The present invention is smart by providing cognitive augmented interaction based on dynamically updated guidelines, knowledge bases, and/or artificial intelligences. The present invention also is secure for both stored and transmitted information. The present invention focuses on the individual level to provide personalized and data driven feedbacks. The present invention integrates various fields of inputs to provide whole and more accurate services.

The present disclosure relates to a polysomnography monitoring cap, including a cap body and a plurality of electrodes preset on the cap body, where the cap body includes a head cover sheet for covering a head and a chin cover sheet for covering a mandible, and the head cover sheet and the chin cover sheet are connected into an integral cover sheet; the electrodes include a scalp electrode, an eye electrode and a mandible muscle electrode, where the scalp electrode is preset on the head cover sheet according to the international EEG positioning standard, the mandible muscle electrode is preset on the chin cover sheet, and the eye electrode is hung on the cap by a lead wire. According to the present disclosure, a scalp electrode, a mandible muscle electrode and an eye electrode are preset.

The present disclosure relates to a polysomnography monitoring cap, including a cap body and a plurality of electrodes preset on the cap body, where the cap body includes a head cover sheet for covering a head and a chin cover sheet for covering a mandible, and the head cover sheet and the chin cover sheet are connected into an integral cover sheet; the electrodes include a scalp electrode, an eye electrode and a mandible muscle electrode, where the scalp electrode is preset on the head cover sheet according to the international EEG positioning standard, the mandible muscle electrode is preset on the chin cover sheet, and the eye electrode is hung on the cap by a lead wire. According to the present disclosure, a scalp electrode, a mandible muscle electrode and an eye electrode are preset.

A hearing device configured to be worn at an ear of a user may include a sensor unit configured to provide sensor data, the sensor unit comprising a biometric sensor configured to provide biometric data included in the sensor data; and a processor configured to determine a physiological parameter from the sensor data, the physiological parameter indicative of a physiological property of the user. The processor is configured to determine whether the physiological parameter fulfills a condition, and provide, depending on whether the physiological parameter fulfills the condition, output data based on the sensor data, the output data including at least part of the biometric data and/or information derived from at least part of the biometric data different from the physiological parameter.

The present disclosure provides an ear tip. The ear tip includes a main body, a first conductive element at least partially embedded in the main body, a second conductive element at least partially embedded in the main body and spaced apart from the first conductive element. The main body includes a central portion having a top and a tail portion extending from the top of the central portion. The first conductive element is proximal to the top of the central portion and the second conductive element is distal from the top of the central portion. A wearable device is also disclosed.

Apparatus, system, and computer-readable media measure electroencephalography (EEG) signals or ERG signals generated from a device that presents a series of images on a timing cycle to a subject. The apparatus comprises a Central Processing Unit (CPU), Power Supply Unit (PSU), Random Access Memory (RAM), and a hard drive (HDD). The apparatus further includes at least one electrode and a photo-sensor like a photodiode for conversion of light into electric current. The CPU is operable with software for converting the EEG or ERG signals evoked from the visual stimuli to provide data and retrieving the status of EEG signals.

An illustrative biopotential measurement system includes a plurality of electrodes each configured to record a different signal included in a plurality of signals representative of electrical activity of a target within a user; a plurality of non-inverting operational amplifier circuits each connected to a different electrode included in the plurality of electrodes and each configured to output a different amplified signal included in a plurality of amplified signals representative of amplified versions of the plurality of signals; and a common-mode feedback circuit configured to measure a common-mode signal between the plurality of amplified signals and provide the common-mode signal to the non-inverting operational amplifier circuits. The non-inverting operational amplifier circuits are configured to use the common-mode signal to generate voltage-divided feedback signals used to generate the plurality of amplified signals.

An illustrative biopotential measurement system includes a plurality of electrodes each configured to record a different signal included in a plurality of signals representative of electrical activity of a target within a user; a plurality of non-inverting operational amplifier circuits each connected to a different electrode included in the plurality of electrodes and each configured to output a different amplified signal included in a plurality of amplified signals representative of amplified versions of the plurality of signals; and a common-mode feedback circuit configured to measure a common-mode signal between the plurality of amplified signals and provide the common-mode signal to the non-inverting operational amplifier circuits. The non-inverting operational amplifier circuits are configured to use the common-mode signal to generate voltage-divided feedback signals used to generate the plurality of amplified signals.

The present invention relates to a method, device, and system for improved mapping and/or ablation of a tissue. The device may generally include an elongate body and a distal assembly affixed to the elongate body that includes a treatment electrode having a conductive mapping region and a selectively conductive ablation region that is conductive of high-frequency current and substantially non-conductive of low-frequency current. Alternatively, the device may generally include a treatment electrode having a conductive mapping or ablation region and a region that is coated with an electrically insulated but thermally conductive layer.