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.

Disclosed is an elastic electroencephalography dry electrode, comprising an electrode base and a plurality of dry electrode units, which are fixedly arranged on the electrode base, wherein each dry electrode unit comprises an elastic supporting element and at least one electrode probe element; one end of the elastic supporting element is fixed to the electrode base, and the other end thereof is connected to the electrode probe element; the electrode probe element is used for being in contact with a scalp to collect an electroencephalography signal; the elastic supporting element is used for transmitting the electroencephalography signal; and the electrode base comprises an electrode substrate element, an electrode unit fixing element and an electrode displacement limiting element. Further disclosed are an electroencephalography device and an application system.

Disclosed is an elastic electroencephalography dry electrode, comprising an electrode base and a plurality of dry electrode units, which are fixedly arranged on the electrode base, wherein each dry electrode unit comprises an elastic supporting element and at least one electrode probe element; one end of the elastic supporting element is fixed to the electrode base, and the other end thereof is connected to the electrode probe element; the electrode probe element is used for being in contact with a scalp to collect an electroencephalography signal; the elastic supporting element is used for transmitting the electroencephalography signal; and the electrode base comprises an electrode substrate element, an electrode unit fixing element and an electrode displacement limiting element. Further disclosed are an electroencephalography device and an application system.

The present invention relates to an electrode, which is an in vivo insertable electrode, including a substrate, an electrically conductive layer formed on the substrate, a platinum black layer formed on the electrically conductive layer, a self-assembled monolayer (SAM) formed on the platinum black layer, and a lubricant layer formed on the SAM, a method of manufacturing the electrode, and a medical device including the electrode. The in vivo insertable electrode according to the present invention provides excellent electrical properties such as low impedance. Further, it shows that friction with tissue occurring when the electrode is inserted is reduced, and trauma during insertion and an immune rejection response after insertion is suppressed. Further, in the long term, it is possible to detect signals with high sensitivity throughout the entire period by preventing bioadhesion of in vivo cells, such as immune cells, and other proteins.

The present invention relates to an electrode, which is an in vivo insertable electrode, including a substrate, an electrically conductive layer formed on the substrate, a platinum black layer formed on the electrically conductive layer, a self-assembled monolayer (SAM) formed on the platinum black layer, and a lubricant layer formed on the SAM, a method of manufacturing the electrode, and a medical device including the electrode. The in vivo insertable electrode according to the present invention provides excellent electrical properties such as low impedance. Further, it shows that friction with tissue occurring when the electrode is inserted is reduced, and trauma during insertion and an immune rejection response after insertion is suppressed. Further, in the long term, it is possible to detect signals with high sensitivity throughout the entire period by preventing bioadhesion of in vivo cells, such as immune cells, and other proteins.

An example method for securing a wearable device to a user occurs while the wearable device is worn around a body part. The wearable device includes a biopotential-signal sensor connected to an amplifier to adjust amplification of biopotential signal. The method includes receiving first information representative of power needed to amplify the biopotential signal to the particular amplitude for signal processing. The method also includes, in accordance with a determination that the first information indicates that the wearable device is not properly affixed to the body part, providing first instructions to adjust how the wearable device is affixed to the body part. The method includes receiving second information, and, in accordance with a determination that the second information indicates that the wearable device is properly affixed to the body part, forgoing providing second instructions to adjust how the wearable device is affixed to the body part.

An example method for securing a wearable device to a user occurs while the wearable device is worn around a body part. The wearable device includes a biopotential-signal sensor connected to an amplifier to adjust amplification of biopotential signal. The method includes receiving first information representative of power needed to amplify the biopotential signal to the particular amplitude for signal processing. The method also includes, in accordance with a determination that the first information indicates that the wearable device is not properly affixed to the body part, providing first instructions to adjust how the wearable device is affixed to the body part. The method includes receiving second information, and, in accordance with a determination that the second information indicates that the wearable device is properly affixed to the body part, forgoing providing second instructions to adjust how the wearable device is affixed to the body part.

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 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) inhibiting multiple devices from adhering or sticking to one another or a different object and (ii) providing tactile feedback to users to help distinguish one side of the device from the other.