Electrode Array for Even Neural Pressure
First Claim
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1. An array for neural stimulation comprising:
- a pliable body;
a plurality of electrodes supported by said pliable body suitable to stimulate neural tissue forming an electrode field; and
a plurality of attachment points on at least opposite ends of said electrode field.
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Abstract
An electrode array attached to neural tissue, such as the retina, necessarily has graded pressure exerted on the tissue, with higher pressure near the attachment point. Greater pressure improves contact between the electrodes and neural tissue while too much pressure may damage neural tissue. Hence it is advantageous to obtain equal pressure across the array field. In the present invention multiple and selective attachment points are provided on an electrode array allowing a surgeon to select the attachment points providing the best electrode tissue contact.
32 Citations
24 Claims
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1. An array for neural stimulation comprising:
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a pliable body; a plurality of electrodes supported by said pliable body suitable to stimulate neural tissue forming an electrode field; and a plurality of attachment points on at least opposite ends of said electrode field. - View Dependent Claims (2, 3, 4, 5)
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6. An array for neural stimulation comprising:
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a pliable body; a plurality of electrodes supported by said pliable body suitable to stimulate neural tissue forming an electrode field; and at least one attachment point within said electrode field. - View Dependent Claims (7, 8, 9, 10)
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11. A flexible circuit electrode array comprising:
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a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue forming an electrode field; a polymer top layer deposited on said polymer base layer and said metal traces; a partial or entire coating of the base and top layer by a soft polymer; and a plurality of attachment points on at least opposite ends of said electrode field. - View Dependent Claims (12, 13, 14, 15)
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16. An array for neural stimulation comprising:
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a pliable body; a plurality of electrodes supported by said pliable body suitable to stimulate neural tissue forming an electrode field; an array cable electrically coupling said plurality of electrodes to implanted electronics; and a plurality of attachment points on at least opposite sides of said array cable. - View Dependent Claims (17, 18, 19, 20)
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21. A flexible circuit electrode array comprising:
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a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue forming an electrode field; a polymer top layer deposited on said polymer base layer and said metal traces; a molded body molded around said polymer base layer and said polymer top layer; and A plurality of voids defined by said molded body for attaching said flexible circuit electrode array which pierce said molded body without piercing said polymer base layer or said polymer top layer. - View Dependent Claims (22, 23, 24)
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Specification