One aspect relates to a medical electrode, having a conductor, an insulation, which surrounds the conductor at least in some sections over its entire circumference, protrusions in the insulation, electrode segments arranged between the protrusions, and insulating areas arranged between the electrode segments, wherein the electrode segments have steps, wherein the steps engage with the insulating areas.

The present invention provides a fetal monitoring device and method, and in particular a real time fetal pH, lactate and physiological monitoring device for detection and prevention of perinatal hypoxia, the device including an optical sensor operable to emit light at a wavelength of between 1050 nm-3000 nm onto vascularised tissue on the fetal scalp and to detect the reflected light, in addition to a processor operable to convert real time spectroscopy data from the reflected light into correlated real time data regarding one or more biological markers.

A general-purpose mobile communication device, general-purpose computer user-interface device, and other non-health-related electronic devices with cardiovascular monitoring capability. Various aspects of the present invention may comprise a general-purpose mobile communication device (e.g., a cellular telephone, portable email device, personal digital assistant, etc.) comprising a communication interface module adapted to communicate with a general-purpose communication network, and at least one module operational to acquire cardiac information from a user of the general-purpose mobile communication device. The general-purpose communication device may, for example, comprise a cardiac sensor (e.g., electrodes) disposed on the mobile communication device, which may be utilized to acquire cardiac information during use of the mobile communication device. Various aspects of the present invention may also comprise a non-health related electronic device (e.g., a general-purpose mobile communication device, general-purpose user-interface device for a general-purpose computer, gaming controller, etc.) that, during normal non-health-related utilization, acquire, analyze and/or communicate user health-related information.

A device for skin-contact biological measurement includes one or more electrodes to enable signal transmission through a skin contact and a control mechanism coupled to the one or more electrodes to adjust an electrode-to-skin impedance (ESI). The control mechanism is configured to implement the ESI adjustment using a thermal actuator.

A device for skin-contact biological measurement includes one or more electrodes to enable signal transmission through a skin contact and a control mechanism coupled to the one or more electrodes to adjust an electrode-to-skin impedance (ESI). The control mechanism is configured to implement the ESI adjustment using a thermal actuator.

Disclosed is an extensible electrode array (102) for accurately locating a pelvic floor muscle, and its design method and an extensible pelvic floor electrode. The design method includes: (1) obtaining a three-dimensional muscle anatomy map of a pelvic floor muscle, dividing a muscle according to the three-dimensional muscle anatomy map and determining a muscle fiber trend, and for each muscle, determining a plurality of three-dimensional coordinate points for marking each muscle along the muscle fiber trend (S101); (2) after projecting all three-dimensional coordinate projects onto a two-dimensional plane unfolded in a shape of an elastic cavity (101), taking each two-dimensional coordinate point in the two-dimensional plane as a location to dispose an electrode plate (S102); (3) simulating a mechanical property of the elastic cavity (101), and determining a deformation rate of an extensible electrode wire (105) of the electrode plate when the extensible electrode wire (105) of the electrode plate is arranged along a muscle fiber direction of the pelvic floor muscle (S103); and (4) according to a design result, mounting the electrode plate and the extensible electrode wire (105) on the elastic cavity (101) to form the extensible electrode array (102) (S104). The design method enables each electrode plate to locate the pelvic floor muscle before and after expansion, thereby improving accuracy in collecting a myoelectric signal of the pelvic floor muscle.

A brain control interface system for controlling a controllable device located in an environment is disclosed. The brain control interface system comprising: a brain control interface configured to detect brain activity of a user indicative of a control command for controlling the controllable device, and to derive the control command from the brain activity, a sensor configured to detect changes of an environmental characteristic in the environment, a processor configured to: determine if there is a temporal correlation between a detected change of the environmental characteristic and the detected brain activity of the user, and if the temporal correlation is not present, control the controllable device according to the control command, if the temporal correlation is present, refrain from controlling the controllable device according to the control command.

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) 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.