US2007169333A1PendingUtilityA1

Microstructured arrays for cortex interaction and related methods of manufacture and use

49
Individually held — no corporate assignee on recordPriority: Oct 24, 2002Filed: Mar 23, 2007Published: Jul 26, 2007
Est. expiryOct 24, 2022(expired)· nominal 20-yr term from priority
Inventors:John DonoghueNicholas HatsopoulosSylvain MartelTimothy A. FofonoffRobert J. DyerIan W. Hunter
A61B 5/076A61B 5/685A61B 2562/125A61B 5/24Y10T29/49
49
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Claims

Abstract

A brain implant system consistent with embodiments of the present invention includes an electrode array having a plurality of electrodes for sensing neuron signals. A method for manufacturing the electrode array includes machining a piece of an electrically conductive substance to create a plurality of electrodes extending from a base member. Each electrode also has a corresponding base section. A nonconductive layer is provided around at least a portion of the base section of each electrode to support the plurality of electrodes. The base section of the electrodes are then cut to separate the base member from the plurality of electrodes supported by the nonconductive support layer. The present invention also includes a complete brain implant system using the above electrode array.

Claims

exact text as granted — not AI-modified
1 - 28 . (canceled)  
     
     
         29 . An electrode array, comprising: 
 a nonconductive layer;    an array of electrodes, each electrode having a base section and a tip section, wherein the base section of each electrode is inserted into the nonconductive layer, such that the electrodes are held together by the nonconductive layer; and    an electrical connection located on the base section of each electrode to communicate with the respective electrode.    
     
     
         30 . The array of  claim 29 , wherein the nonconductive layer comprises a wiring layer.  
     
     
         31 . The array of  claim 30 , wherein the wiring circuit further includes a nonconductive portion and a plurality of conductors supported by the nonconductive portion and for connecting to respective ones of the plurality of electrodes, and wherein the nonconductive portion supports the plurality of electrodes.  
     
     
         32 . The array of  claim 29 , wherein the nonconductive layer is comprises an epoxy.  
     
     
         33 . The array of  claim 29 , wherein the nonconductive layer is comprises glass.  
     
     
         34 . The array of  claim 29 , wherein the nonconductive layer comprises a flexible material.  
     
     
         35 . The array of  claim 34 , wherein the flexible material comprises at least one of polyimide, parylene, and silicone.  
     
     
         36 . The array of  claim 29 , wherein the electrodes are arranged in a two-dimensional matrix pattern.  
     
     
         37 . The array of  claim 29 , wherein the electrodes are arranged in a honeycomb-like hexagonal pattern.  
     
     
         38 . The array of  claim 29 , wherein the distances between neighboring electrodes varies.  
     
     
         39 . The array of  claim 29 , wherein the electrodes increase in length from one side of the array to another side of the array.  
     
     
         40 . The array of  claim 29 , wherein the plurality of electrodes have varying lengths.  
     
     
         41 . The array of  claim 40 , wherein a first electrode has a length different that than of its immediately neighboring electrodes.  
     
     
         42 . The array of  claim 40 , wherein the lengths of the plurality of electrodes are random.  
     
     
         43 . The array of  claim 29 , wherein the plurality of electrodes have varying widths.  
     
     
         44 . The array of  claim 43 , wherein a first electrode has a width different than that of each of its immediately neighboring electrodes.  
     
     
         45 . The array of  claim 29 , wherein the electrodes have a platform portion where the width of the electrode is enlarged.  
     
     
         46 . The array of  claim 45 , wherein the nonconductive layer rests on the platform portion of each electrode after the base section of each electrode is inserted into the nonconductive section.  
     
     
         47 . The array of  claim 29 , wherein the electrodes may apply an electrical stimulation signal.  
     
     
         48 . The array of  claim 29 , wherein the electrodes may detect an electrical signal.  
     
     
         49 - 58 . (canceled)

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