Electrode arrays
First Claim
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1. An electrode array comprising:
- (a) at least two hydrogel islands, wherein at least two of the hydrogel islands have a corresponding electrode contacting said hydrogel island;
(b) a flexible insulating substrate comprising an electrode region, a torsion relief region, and a connector region; and
(c) conductors located on said substrate electrically connecting the electrodes to the connector region,wherein;
all the electrodes are located in the electrode region;
the connector region and the electrode region are connected together through the torsion relief region;
the torsion relief region is narrower than the connector region and is connected to a long side of the electrode region, the long side of the electrode region being defined as the long side of the smallest rectangle that encloses all the electrodes; and
the connector region comprises a tip region and a stop region, the tip region arranged at an edge of the electrode array and the stop region arranged adjacent to the tip region, the stop region being wider than the tip region.
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Abstract
Electrode arrays have a plurality of electrodes. These arrays may have any combination of the following improvements. The arrays may have features that enable easier electrical connections and reduced bending stiffness by having a stop region and a torsion relief region, respectively. The arrays may have a shielding feature that may reduce electrical interference. The arrays may come in pairs that are designed to simplify measurements of electric signals of bilateral organs and tissues, such as eyes and ears.
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Citations
13 Claims
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1. An electrode array comprising:
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(a) at least two hydrogel islands, wherein at least two of the hydrogel islands have a corresponding electrode contacting said hydrogel island; (b) a flexible insulating substrate comprising an electrode region, a torsion relief region, and a connector region; and (c) conductors located on said substrate electrically connecting the electrodes to the connector region, wherein; all the electrodes are located in the electrode region; the connector region and the electrode region are connected together through the torsion relief region; the torsion relief region is narrower than the connector region and is connected to a long side of the electrode region, the long side of the electrode region being defined as the long side of the smallest rectangle that encloses all the electrodes; and the connector region comprises a tip region and a stop region, the tip region arranged at an edge of the electrode array and the stop region arranged adjacent to the tip region, the stop region being wider than the tip region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification