The invention relates to an electrode for detecting a bioelectrical signal, for example EEG, on a skin surface. The electrode comprises a coating comprising iridium oxide, where the coating has a nanostructured surface pattern providing for a capillary and hydrophilic effect when in use.

The invention relates to an electrode for detecting a bioelectrical signal, for example EEG, on a skin surface. The electrode comprises a coating comprising iridium oxide, where the coating has a nanostructured surface pattern providing for a capillary and hydrophilic effect when in use.

Devices and methods for electrical potential sensing and influencing are provided. The inventive devices include electroencephalography (EEG), electrocardiogram (EKG), photoplethysmography (PPG), electromyography (EMG), and temperature devices for measuring bio-activity signals from a body. The described devices are designed to include motion dampending, a hybrid non-contact and contact sensing surface and to optimise sensitivity in difficult sensing conditions, such as during movement, through obstructions like hair and clothing, while having a convenient and small form factor. The inventive devices provide for improved sensitivity, adaptability, and noise reduction when compared to other designs. Methods for influencing said bio signals with a device with a hybrid non-contact and contact sensing surface are also described.

Devices and methods for electrical potential sensing and influencing are provided. The inventive devices include electroencephalography (EEG), electrocardiogram (EKG), photoplethysmography (PPG), electromyography (EMG), and temperature devices for measuring bio-activity signals from a body. The described devices are designed to include motion dampending, a hybrid non-contact and contact sensing surface and to optimise sensitivity in difficult sensing conditions, such as during movement, through obstructions like hair and clothing, while having a convenient and small form factor. The inventive devices provide for improved sensitivity, adaptability, and noise reduction when compared to other designs. Methods for influencing said bio signals with a device with a hybrid non-contact and contact sensing surface are also described.

A method for preparing a flexible electrode is provided. The method comprises sequentially forming a flexible base layer and an intermediate conductive layer on a carrier plate; treating an elastomeric template having an electrode pattern with an acid, followed by transferring and printing the electrode pattern onto the intermediate conductive layer to form an electrode inducing layer; forming a titanium dioxide-polydopamine composite layer in a gap of the electrode inducing layer; forming a platinum electrode layer on the titanium dioxide-polydopamine composite layer; removing the carrier plate. The invention solves the problems of slow formation of a polydopamine film and slow formation of a platinum electrode layer. A flexible electrode is further provided.

A microelectrode, a method for manufacturing the microelectrode, a method for using the microelectrode, an occluding device, and a microelectrode system are provided. The microelectrode (10) includes a substrate (110) and a conductive layer (120) on the substrate (110), and the conductive layer (120) is configured to conduct an electrical signal. The substrate (110) is a flexible substrate and includes a cavity structure (111), and the cavity structure (111) is configured to contain or release a fluid. The hardness of the substrate (110) in the case where the cavity structure (111) contains the fluid is different from the hardness of the substrate (110) in the case where the cavity structure (111) does not contain the fluid. The microelectrode has good ductility and stable electrical performance, and the microelectrode is easy to be implanted into the biological tissue and not easy to result in the immune reaction of the biological tissue.

A stretchable mounting board that includes a mounting electrode section electrically connected to stretchable wiring, and solder electrically connected to the mounting electrode section. The mounting electrode section has a first electrode layer on a side thereof facing the stretchable wiring and which includes bismuth and tin, and a second electrode layer on a side thereof facing the solder and which includes bismuth and tin. A concentration of the bismuth in the first electrode layer is lower than a concentration of the bismuth in the second electrode layer, and the concentration of the bismuth in the second electrode layer is constant along a thickness direction thereof.

An on-body sensor unit (12) comprises a PPG sensor and an ECG sensor, each having sensor parts exposed at a skin-contacting surface (16) of the unit. The PPG includes an optical detector (22) and at least one light source (20a, 20b). Disposed between the at least one light source and the optical detector is a light-intercepting surface element (28), adapted to be absorptive of light of at least a majority of a spectral composition which is generated by the at least one PPG light source (20a, 20b). Located within, or forming, this surface element is an electrode (32a, 32b) comprised by the ECG sensor, said electrode having at least an exposed skin-interfacing surface which is absorptive of a majority of the spectral composition of said light generated by the at least one light source.

A biomedical electrode of the present invention includes: a plate-shaped support portion; an elastic pillar portion that is provided on a first surface of the plate-shaped support portion; a conductive resin layer that is formed to cover a distal end of the elastic pillar portion; and a conductive wire that is electrically connected to the conductive resin layer and is arranged in the elastic pillar portion from a distal end side toward a base end side.

Provided is a bio-signal detection and stimulation device. The bio-signal detection and stimulation device includes a flexible substrate, a stimulation part on the flexible substrate, and a detection electrode part on the flexible substrate. The stimulation part and the detection electrode part vertically overlap each other, the stimulation part includes an organic light emitting diode (OLED), the stimulation part emits an optical signal, and the detection electrode part detects a bio-signal.