3691 results about "Auxiliary electrode" patented technology

A minimally-invasive analyte detecting device and method for using the same. The system and method employ a device having an active electrode optionally coated with a substance, and a counter-electrode that is configured at least partially surround the active electrode. The configuration of the auxiliary electrode and active electrode improves the current flow through the device and increases the sensitivity of the device. When the device is placed against the patient's skin, the active electrode is adapted to enter through the stratum corneum of a patient to a depth less than a depth in the dermis at which nerve endings reside. An electric potential is applied to the active electrode and the analyte level is determined based on the amount of current or charge flowing through the device.

An electrochemical biosensor formed by screen printing and method of fabricating such biosensor is disclosed in the present invention. The biosensor can quickly absorb a sample to be measured therein, effectively control volume of the sample fed and “fill-and-position” the sample therein. The biosensor includes an electrode layer (electrode area) comprising two or three electrodes, which are a working electrode, a reference electrode and an auxiliary electrode (tri-electrode) on an insulating substrate. An active reaction layer containing reactant, reaction catalyst, mediator, wetting agent and surfactant is spread on the surface of the electrode layer. A sample inflow area is formed above the electrode area by adding an upper cover on top of a middle insulating layer with a U-shaped opening formed therein. Sample solution with a minute amount about 0.8 to 1 μl can be rapidly introduced into the electrode area and the active reaction layer via the inflow area by siphon or capillary, where the ingredient of the sample can be analysed by measuring reaction between the sample, reaction catalyst and mediator in the reaction layer using electrochemical potentiometric or amperometric method. An upwardly extended closed space formed within the upper cover above the electrode area adjacent to the front of conductive wires can be effectively used to control sample volume and “fill-and-position” the sample.

A device for cranial nerve stimulation of an individual is disclosed, having a signal driver unit for producing a current; an intraoral stimulation board having at least one primary electrode, and at least one secondary electrode positioned on the individual for communicating a current through the individual, wherein current can flow between the intraoral stimulation board and the secondary electrode. The device may be used to treat a number of ailments. In one embodiment, the device provides input representing two planes of movement, or is used as a gaming controller. A method of using an electrical stimulation system is also disclosed, comprising the steps of: a) positioning the intraoral stimulation board within the individual's mouth; b) connecting the secondary electrode to the individual; c) operating the signal driver unit for a predetermined time to provide a current flow between the intraoral stimulation board and the secondary electrode.