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185 results about "Nerve fibre" patented technology

An axon (from Greek ἄξων áxōn, axis) or nerve fiber, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses known as action potentials, away from the nerve cell body.

Method and apparatus for selective control of nerve fibers

A method and apparatus particularly useful for pain control by selectively blocking the propagation of body-generated action potentials travelling through a nerve bundle by using a tripolar electrode device to generate unidirectional action potentials to serve as collision blocks with the body-generated action potentials representing pain sensations in the small-diameter sensory fibers. In the described preferred embodiments there are a plurality of electrode devices spaced along the length of the nerve bundle which are sequentially actuated with delays corresponding to the velocity of propagation of the body-generated action potentials through the large-diameter fibers to produce a "green wave" effect which minimizes undesired anodal blocking of the large-diameter fibers while maximizing the collision blocking of the small-diameter fibers.
Owner:MEDTRONIC INC

Implantable sheet type optic nerve micro stimulating electrode

The implantable chip type optic nerve micro stimulating electrode in biomedicine engineering technology field includes an electrode substrate, micro electrodes, inner electrode leads, a lead base, lead interfaces and a cable bundle. Two or more micro electrodes constitute the micro electrode pair, the inner electrode leads connect the micro electrodes and the lead interfaces, the lead base and the electrode substrate are connect directly, the lead interfaces are distributed in the surface of the lead base, and the cable bundle consists of cables connecting the lead interfaces and the outer equipment. The present invention can stimulate the optic nerve fiber effectively and the optic nerve fiber conducts the stimulating current the stimulator produces to the optic cortex, so that the optic cortex produces excitation similar to that produced by the light stimulated retina, and generates visual hallucination, while recording the potential of the optic nerve fiber.
Owner:北京达视明科技发展有限公司
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