Provided is a biological electrode and a biological electrode-equipped wearing tool, in which a contact surface having a certain surface area is suitably brought into intimate contact with a living body, and a suitable electrical distribution is obtained. The biological electrode includes: a thin-plate-like or sheet-like wiring substrate having a lead wire portion to be connected with equipment; a plurality of electrode convex portions disposed on a surface of the wiring substrate in a state of being electrically connected with the lead wire portion; and a conductive cloth portion which is superimposed on the wiring substrate through the electrode convex portions. The conductive cloth portion is to be contacted with the surface of a living body, and electrically connected to the living body.

An implantable device having a communication system, a sensor, and a monolithic substrate is described. The monolithic substrate has an integrated sensor circuit configured to process input from the sensor into a form conveyable by the communication system.

A catheter includes an insertion tube, a flexible substrate and one or more electrical devices. The insertion tube is configured for insertion into a patient body. The flexible substrate is configured to wrap around a distal end of the insertion tube and includes electrical interconnections. The electrical devices are coupled to the flexible substrate and are connected to the electrical interconnections.

A method for detecting a failure of at least one component of a continuous analyte monitoring system is disclosed. The continuous analyte monitoring system has a failure detection resistor and an analyte sensor having at least two measurement electrodes. A constant voltage is applied between the two measurement electrodes and a first response signal is measured. A failure detection signal that is distinguishable from the constant voltage and/or from the first response signal in frequency and/or in height is applied to the continuous monitoring system, and a second response signal to the failure detection signal is measured using the failure detection resistor. Information is determined depending on at least one actual property of the component by evaluating the first response signal and the second response signal. A failure is detected if the information deviates from an expected value by more than a predetermined tolerance.

Disclosed are devices, systems, and methods for determining the dipole densities on heart walls. In particular, a triangularization of the heart wall is performed in which the dipole density of each of multiple regions correlate to the potential measured at various located within the associated chamber of the heart. To create a database of dipole densities, mapping information recorded by multiple electrodes located on one or more catheters and anatomical information is used. In addition, skin electrodes may be implemented. Additionally, one or more ultrasound elements are provided, such as on a clamp assembly or integral to a mapping electrode, to produce real time images of device components and surrounding structures.

One variation of a system for collecting biosignal data includes: a left junction; a right junction; a first band spanning the left and right junctions; a first band adjuster configured to adjust a length of the first band between the left and right junctions; a second band spanning the left and right junctions and radially offset from the first band about a lateral axis spanning the left and right junctions; a second band adjuster configured to adjust a length of the second band between the left and right junctions; a first electrode fixedly mounted to the first band and centered between the left and right junctions; a second electrode mounted to the first band offset from the first electrode and laterally-adjustable along the length of the first band; and a third electrode mounted to the second band and laterally-adjustable along the length of the second band.

According to one embodiment, an eye movement detecting device comprises first, second, third, fourth and fifth electrodes. A line connecting the first and the third electrodes passes through the right eye and a line connecting the second and the fourth electrodes passes through the left eye on at least one of a front view, a plan view or a side view. A distance between the fifth and the first electrodes is equal to a distance between the fifth and the second electrodes. A distance between the fifth and the third electrodes is equal to a distance between the fifth and the fourth electrodes. The detector respectively detects a horizontal movement of the right eye and a horizontal movement of the left eye.

Methods and systems implement a variety of sensors, including in embodiments various combinations of EEG sensors, biochemical sensors, photoplethysmography (PPG) sensors, microphones, and accelerometers, to detect, predict, and/or classify various physiological events and/or conditions related to epilepsy, sleep apnea, and/or vestibular disorders. The events can include neuroelectrical events, cardiac events, and/or pulmonary events, among others. In some cases, the method and systems implement trained artificial intelligence (AI) models to detect, classify, and/or predict. The methods and systems are also capable of optimizing a treatment window, suggesting treatments that may improve the overall well-being of the patient (including improving pre- or post-event symptoms and effects), and/or interacting with various care providers.

A biological information measurement device, including an electrode contact state detector including a first contact detection circuit connected to either the first electrode or the second electrode among the electrodes, a second contact detection circuit connected to the third electrode, and a contact state determinator for determining a contact state indicating which of the electrodes is in contact with a surface of the measurement target based on a first signal output from the first contact detection circuit and a second signal output from the second contact detection circuit, and an input receiver for receiving a contact of the electrode with respect to the surface of the measurement target as input of predetermined operation associated with the contact state.

A wearable device is provided. The wearable device, which is used by being attached to a user's skin, includes a main body unit including a housing and a battery, the battery being arranged inside the housing, an electrode unit including a plurality of electrodes connected to the battery, and a patch unit including one or more conductive members, the one or more conductive members being configured to electrically connect the electrode unit to the user's skin. The patch unit further includes a plurality of stacked layers, and a layer in contact with the user's skin includes a plurality of ventilation holes.