The present invention provides a bio-electrode composition including a silsesquioxane bonded to a sulfonimide salt, wherein the sulfonimide salt is shown by the following general formula (1): ##STR00001##
wherein R.sup.1 represents a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms that may have an aromatic group, an ether group, or an ester group, or an arylene group having 6 to 10 carbon atoms; Rf represents a linear, branched, or cyclic alkyl group having 1 to 4 carbon atoms containing at least one fluorine atom; M.sup.+ is an ion selected from a lithium ion, a sodium ion, a potassium ion, and a silver ion. This can form a living body contact layer for a bio-electrode that is 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.

A key input device applicable to a smart mat is provided, where the key input device includes a first layer in which a plurality of row contacts are formed, a second layer in which a plurality of column contacts are formed, an insulating layer disposed between the first and second layers to form an insulating region and a current carrying region, and a processor configured to detect that at least one of a plurality of key switches formed by the plurality of row contacts and the plurality of column contacts is pressed.

A dry electrode and a physiological multi-parameter monitoring equipment are disclosed. The waterproof dry electrode comprises an encapsulation, extraction electrode and a contact surface layer, wherein the extraction electrode and the contact surface layer are connected with each other and disposed in the encapsulation; the contact surface layer comprises an exposed part and an embedded part encapsulation; the encapsulation comprises flexible silica gel and hard plastic portion, the embedded part being embedded into the hard plastic portion, and the hard plastic portion being packaged in the flexible silica gel. Through the above arrangement in the present invention, the dry electrode can reach a waterproof grade of IPX7, which is higher than living waterproof grade of an ordinary dry electrode. The PMPME can be a patch-type acquisition and monitoring equipment which is convenient for long time wearing and physiological multi-parameter monitoring, with excellent sealing and waterproofness, and the electrode is reusable.

The present invention relates to a syringe-injection-type brain signal measurement and stimulation structure, and a syringe injection method therefor, and provides a structure including a high-performance flexible element capable of minimizing a skull opening when inserted into the brain. Particularly, the present invention comprises: a flexible element, which includes a contact part making contact with a surface of a cortex so as to measure a signal generated in the brain or transmit an external stimulus to the brain, a transmitting/receiving part positioned between a skull and a skin, and a connection part for making a connection between the contact part and the transmitting/receiving part; and an integrated circuit connected to the transmitting/receiving part so as to transmit/receive a signal.

An electrode configured for use in electromyography procedures including a shaft having a first end and a second end, where the shaft consists of a conductive material; an electrically insulative first coating configured to encase the conductive material; a tapered tip at the first end of the shaft, where the tip is angled and is formed by removing the first coating from a first portion of the shaft and exposing a first length of conductive material; and a hub positioned at the second end of the shaft, wherein the hub is positioned after removing the first coating from a second portion of the shaft and exposing a second length of conductive material, wherein the hub is configured to electrically couple a lead wire to the second length of conductive material at the second end.

A method for integrating a thin film microbattery with electronic circuitry includes forming a release layer over a handler, forming a thin film microbattery over the release layer of the handler, removing the thin film microbattery from the handler, depositing the thin film microbattery on an interposer, forming electronic circuitry on the interposer, and sealing the thin film microbattery and the electronic circuitry to create individual microbattery modules.

A proto-microelectrode, a proto-microelectrode bundle and array, a method of manufacture of the proto-microelectrode, and a method of using the proto-microelectrode, the proto-microelectrode being capable of forming a microelectrode upon implantation into soft tissue, and includes an oblong electrode body; an optional first coat of electrically non-conducting material on the electrode body; a second coat of water insoluble flexible polymer material enclosing, at a distance, the electrode body and the first coat, the second coat including one or more through openings; a first layer of ice disposed between the electrode body and the second coat.

Disclosed herein are novel 3D microelectrode arrays (3D MEA) that include a substrate body (e.g. chip), microneedles, traces, and a well, wherein the 3D MEA provides for transfer of electrical signals on one side of the substrate body to the other side of the substrate body. Methods for using 3D MEAs to grow electrogenic cells and obtain electrophysiological signals are disclosed as well. Fabrication techniques for producing the 3D MEAs are also disclosed.

Disclosed are various examples and embodiments of a Nitinol basket for an electrophysiological (EP) mapping catheter. In one embodiment, the Nitinol basket comprises a plurality of basket splines, each basket spline having a distalmost portion and a proximal end, where the distal tip is uninterruptedly contiguous and continuous with the distalmost portions of the basket splines and formed from the same piece, slab or ingot comprising Nitinol as the splines. In such an embodiment, the basket splines and distal tip are cut and formed from a same single length or piece of Nitinol tubing or a Nitinol hypotube. The respective distal portions of each of the Nitinol splines can be continuous and contiguous with, and connected to, the Nitinol distal tip, each spline being configured to extend outwardly away from an imaginary central axis of the Nitinol basket and its proximal end and distal portion to form a curved shape therebetween when the Nitinol basket is in an undeformed and deployed state. The splines can be configured to be spaced approximately equal distances apart from one another when the Nitinol basket is in an undeformed and deployed state, and the can be configured collectively to form a basket shape when the Nitinol basket is in an undeformed, expanded and deployed state.

A wearable device may include a sensor. The sensor may include a flexible fabric, a conjugated polymer coating deposited on the fabric via vapor-phase oxidative chemical vapor deposition (oCVD), and a plurality of electrodes in coupled to the conjugated polymer coating. The wearable device may further include a processor communicatively coupled to the electrodes. The processor may measure an electrical property across the electrodes, determine a physiological event based on the measured electrical property, and output measurement information corresponding the physiological event.