Microfabricated neurostimulation device
First Claim
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1. An implantable neurological device, comprising:
- a support tube;
a cylindrical member having a distal end, a proximal end, and an internal lumen; and
a microelectrode film attached to an outer surface of the support tube to form a cylindrical substrate and with the support tube defining a lumen of the cylindrical substrate, the microelectrode film comprising a plurality of microelectrode elements, a longitudinal extension extending from a distal end of the microelectrode film, and a proximal end, the distal end of the microelectrode film disposed toward the distal end of the cylindrical member, a portion of the longitudinal extension extending in the internal lumen of the cylindrical member toward the proximal end of the cylindrical member.
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Abstract
Described herein are microelectrode array devices, and methods of fabrication and use of the same, to provide highly localized and efficient electrical stimulation of a neurological target. The device includes multiple microelectrode elements arranged along an elongated probe shaft. The microelectrode elements are dimensioned and shaped so as to target individual neurons, groups of neurons, and neural tissue as may be located in an animal nervous system, such as deep within a human brain. Beneficially, the neurological probe can be used to facilitate location of the neurological target and remain implanted for long-term monitoring and/or stimulation.
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Citations
21 Claims
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1. An implantable neurological device, comprising:
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a support tube; a cylindrical member having a distal end, a proximal end, and an internal lumen; and a microelectrode film attached to an outer surface of the support tube to form a cylindrical substrate and with the support tube defining a lumen of the cylindrical substrate, the microelectrode film comprising a plurality of microelectrode elements, a longitudinal extension extending from a distal end of the microelectrode film, and a proximal end, the distal end of the microelectrode film disposed toward the distal end of the cylindrical member, a portion of the longitudinal extension extending in the internal lumen of the cylindrical member toward the proximal end of the cylindrical member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable neurological device, comprising:
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a support tube; a microelectrode film attached to an outer surface of the support tube to form a cylindrical substrate, the support tube defining a lumen of the cylindrical substrate, the microelectrode film comprising; one or more microelectrode elements; and an extension, a portion of the extension extending into the lumen defined by the cylindrical substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming an implantable neurological device, comprising:
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providing a support tube; providing a microelectrode film comprising a plurality of microelectrode elements, a longitudinal extension extending from a distal end of the microelectrode film, and a proximal end; shaping the microelectrode film to form a cylindrical shape; attaching the microelectrode film with an outer surface of the support tube such that the support tube defines a lumen through the cylindrical shape; and inserting the longitudinal extension into the lumen. - View Dependent Claims (21)
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Specification