The technology involves scaffold structures used for in-ear sensor systems. Such systems that can perform biometric signal detection or act as a human-computer interface. Scaffolding arrangements minimize the amount of material placed in the ear while providing a secure fitting device that can be worn for hours, days or longer in order to provide maximal benefit to the wearer. The scaffolding includes a “C”-shaped arcuate curvature for at least part of the housing. This configuration can act as a natural leaf spring to help maintain the housing in contact with different points along the ear. Sensors are located along various points of the scaffolding for use in different diagnostic situations. Different components of an on-board sensor input and processing system can be distributed along different parts of the scaffolding. Such structures beneficially minimize ambient sound occlusion and avoid the need of an exterior strap or clip worn around the ear.

A pair of stimulating electrodes and a mechanomyography sensor come into intimate contact with a body surface of a muscle, appearing on a back surface of an insulating sheet and being spaced a predetermined distance apart; accordingly, an electrical stimulation position and a position to detect muscle sound are fixed, and the amplitude and frequency of an evoked mechanomyogram MMG can be quantitatively detected without depending on the electrical stimulation position and the muscle sound detection position.

An object of the present disclosure is to provide a muscle condition measurement sheet that can quantitatively detect the amplitude and latency of an evoked electromyogram EMG or an evoked mechanomyogram MMG and correctly evaluate the state of activity of a muscle. A pair of stimulating electrodes and all myoelectric detection electrodes come into intimate contact with a body surface of a muscle, appearing on a back surface of an insulating sheet spaced at predetermined intervals; accordingly, the relative position between an electrical stimulation position and the myoelectric detection electrode is fixed and the amplitude and latency of the evoked electromyogram EMG can be quantitatively detected without depending on the stimulation position of an electrical stimulation signal.

This is directed to an electronic device having an integrated sensor for detecting a user's cardiac activity and cardiac electrical signals. The electronic device can include a heart sensor having several leads for detecting a user's cardiac signals. The leads can be coupled to interior surfaces of the electronic device housing to hide the sensor from view, such that electrical signals generated by the user can be transmitted from the user's skin through the electronic device housing to the leads. In some embodiments, the leads can be coupled to pads placed on the exterior of the housing. The pads and housing can be finished to ensure that the pads are not visibly or haptically distinguishable on the device, thus improving the aesthetic qualities of the device. Using the detected signals, the electronic device can identify or authenticate the user and perform an operation based on the identity of the user. In some embodiments, the electronic device can determine the user's mood from the cardiac signals and provide data related to the user's mood.

A sensory-and-logic system includes a ring-shaped, electrically-conductive skin sensor sized and shaped to form an electrical connection with human skin, and an electrical component surrounded by the ring-shaped, electrically-conductive skin sensor.

An electrode sensor is provided. The electrode sensor can include a conductive sensor area that is at least partially covered by hydrogel. The hydrogel can be conductive and adhere to skin. A receptacle can form an open container surrounding the conductive sensor area and the hydrogel.

A method for prolonging a usage lifetime of a micro biosensor to measure a physiological signal associated with an analyte is provided. The micro biosensor includes a working electrode, a counter electrode including silver and a silver halide having an initial amount, and an auxiliary electrode. The method includes cyclic steps of: applying a measurement voltage to drive the working electrode to measure the physiological signal; stopping applying the measurement voltage; and whenever the physiological parameter is obtained, applying a replenishment voltage between the counter electrode and the auxiliary electrode to drive the counter electrode, thereby the silver halide of a replenishment amount being replenished to the counter electrode, wherein a guarding value of a sum of the replenishment amount and the initial amount subtracting a consumption amount is controlled within a range of the initial amount plus or minus a specific value.

In at least one embodiment of a device configured for insertion into a gastrointestinal tract of the present disclosure, the device comprises a core comprising a core material which is solid, semi-solid or compressible, one or more sensors embedded in an interior of the device and/or on a surface of the device, at least one of the one or more sensors configured to obtain a pressure measurement within the gastrointestinal tract and during defecation of the device, and a plurality of electrodes within or upon the device and configured to obtain impedance planimetric measurements within the gastrointestinal tract and during defecation of the device, the impedance planimetric measurements useful to determine cross-sectional areas.

Disclosed is an audio-headset for acquisition of a bio-signal from a subject, including a first earpiece; a second earpiece; an arch connecting the first earpiece and the second earpiece; the arch including a hub (4); wherein the arch, the first earpiece and the second earpiece are configured so that the earpieces are placed over a subject's ears when the audio headset is worn by the subject; and at least one posterior branch (1) having a first end extending from the hub and a second free end; the at least one posterior branch (1) including a concave surface with a radius of curvature, a collapsed state when the headset is not worn by the subject and an expanded state when the headset is worn by the subject.

The present teachings relate to monitoring the condition of a subject with a contactless system for sensing biopotential signals comprising: a support surface; one or more inner layers; a plurality of contactless electrode units within the one or more inner layers; one or more outer layers; and wherein the plurality of contactless electrode units are arranged in an inner shape within an outer shape such that the contactless electrode units form the vertices of the inner shape and the outer shape. The method includes the steps of: providing a support surface having one or more sensing devices embedded therein; positioning the subject at least partially on the support surface; acquiring data from an electrocardiograph reading on the subject for a predetermined amount of time; outputting the data of the step (c); and analyzing the data of the step (c), by identifying one or more biomarkers consistent with a disease condition.