Biostable neuroelectrode
First Claim
1. A device for a derivation of electrical signals and a stimulation of biological tissues, the device comprising:
- a flexible and/or rigid substrate, the substrate including electrical strip conductors and at least one electrode extending substantially perpendicular from said substrate and connected with the electrical strip conductors, the at least one electrode having a micro-capillary with an interior and at least one opening, the micro-capillary being connected at one end with the substrate.
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Abstract
A device for deriving electrical signals or for electrically simulating neuronal tissue. Neuroelectrodes form an interface between the biological tissue and technical systems. Existing neuroelectrodes for contacting low-lying neuronal layers diminish their properties by the interaction with biological tissue. In order to improve the long-time behavior, neuroelectrodes filled with bioactive substances are used. The neuroelectrode is formed on a flexible or rigid substrate with the aid of a line and of a microcapillary. The inside of the microcapillary serves as a container for the bioactive substance. The biostable neuroelectrode is used for deriving electrical signals or for electrically stimulating neuronal tissue in the fields of neurology and neurophysiology.
42 Citations
18 Claims
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1. A device for a derivation of electrical signals and a stimulation of biological tissues, the device comprising:
a flexible and/or rigid substrate, the substrate including electrical strip conductors and at least one electrode extending substantially perpendicular from said substrate and connected with the electrical strip conductors, the at least one electrode having a micro-capillary with an interior and at least one opening, the micro-capillary being connected at one end with the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for a derivation of electrical signals and a stimulation of biological tissues, the device comprising:
a flexible substrate and/or a rigid substrate .made of an electrically conductive material or a non-conductive material, the substrate having electrical strip conductors and at least one electrode connected with the electrical strip conductors and fastened in an opening in the substrate by an epoxy resin, a silicone, a polyimide or a liquid glass, wherein each of the at least one electrode has an interior electrical conductor insulated by an electrically non-conductive material in a form of a micro-capillary, the micro-capillary having at least one opening and connected at one end with a substrate and an interior of the micro-capillary filled with a biological substance or a chemical substance.
Specification