Technologies and implementations for a wearable medical device (WMD). The WMD includes electrocardiogram (ECG) electrodes and/or therapy electrodes having resistor components formed utilizing resistive ink.

A stretchable mounting board that includes a stretchable substrate having a main surface, a stretchable wiring disposed on the main surface of the stretchable substrate, a mounting electrode section electrically connected to the stretchable wiring, solder electrically connected to the mounting electrode section and including bismuth and tin, and an electronic component electrically connected to the mounting electrode section with the solder interposed therebetween. 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.

This invention concerns a system for brain signal measurement and analysis using graphene based electrodes. The system is minimally invasive with small size electrodes and a stamp-size electronic processor with wireless communication and a remote computing device, enabling brain signal collection outside of clinical settings. The electrodes and electronic processor are both imprinted onto the subject's scalp using three-dimensional printers with small size electronics. After use, the electrodes and electronic processor may be washed off or removed without injuries to the subject.

This invention concerns a system for brain signal measurement and analysis using graphene based electrodes. The system is minimally invasive with small size electrodes and a stamp-size electronic processor with wireless communication and a remote computing device, enabling brain signal collection outside of clinical settings. The electrodes and electronic processor are both imprinted onto the subject's scalp using three-dimensional printers with small size electronics. After use, the electrodes and electronic processor may be washed off or removed without injuries to the subject.

The present disclosure involves the integration of conductive filaments or n-doped silicon with a rubber ear-tip. This combination allows for the detection of brain oscillation waves in EEG-enabled earbud systems. Previous implementations of ear tip electrodes involve multiple tiny electrodes embedded into the ear tip. However, unlike conventional designs, the presented solution utilizes the entire ear tip for conductivity, making a significant advancement in EEG technology in regards to data capturing. Other embodiments of the invention include partitioning the ear tip itself to make an electrode array for multiple reference points during detection of brain waves. These conductive ear tips enable accurate neural biometric detection. Incorporating magnets, the ear tips seamlessly attach to earbuds, enhancing convenience.

The present disclosure involves the integration of conductive filaments or n-doped silicon with a rubber ear-tip. This combination allows for the detection of brain oscillation waves in EEG-enabled earbud systems. Previous implementations of ear tip electrodes involve multiple tiny electrodes embedded into the ear tip. However, unlike conventional designs, the presented solution utilizes the entire ear tip for conductivity, making a significant advancement in EEG technology in regards to data capturing. Other embodiments of the invention include partitioning the ear tip itself to make an electrode array for multiple reference points during detection of brain waves. These conductive ear tips enable accurate neural biometric detection. Incorporating magnets, the ear tips seamlessly attach to earbuds, enhancing convenience.

The present application provides a method for manufacturing a microelectrode film. The method includes: forming at least one recess on the carrier substrate by isotropic etching; forming a microelectrode seed pattern in the recess; growing a microelectrode in the recess by using the microelectrode seed pattern; making a first substrate to be in contact with a side of the carrier substrate having the recess thereon; separating the microelectrode from the carrier substrate to transfer the microelectrode onto the first substrate.

A bio-electrode, excellent in electric conductivity and biocompatibility, light-weight, manufacturable at low cost, and free from large lowering of the electric conductivity even though it is wetted with water or dried, includes an electro-conductive base material and a living body contact layer formed on the electro-conductive base material. The living body contact layer is a cured material of a bio-electrode composition including (A) an ionic material and (C) a metal powder, wherein the component (A) is a polymer compound containing a repeating unit-a having a structure selected from an ammonium salt, a sodium salt, a potassium salt, and a silver salt of any of fluorosulfonic acid, fluorosulfonimide, and fluorosulfonamide.

Embodiments relate to implantable-lead devices that include one or more materials with altered morphology and methods for making and using the same. Specifically, the morphology of electrodes and/or one or more other implant-device materials can be textured to include micro- and/or nanoscale topographical features, which can reduce in vivo fibrotic response and thereby improve signal-to-noise ratios and short-term extractability of the devices.

Embodiments relate to implantable-lead devices that include one or more materials with altered morphology and methods for making and using the same. Specifically, the morphology of electrodes and/or one or more other implant-device materials can be textured to include micro- and/or nanoscale topographical features, which can reduce in vivo fibrotic response and thereby improve signal-to-noise ratios and short-term extractability of the devices.