DEEP BRAIN STIMULATION IMPLANT WITH MICROCOIL ARRAY
First Claim
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1. A device for stimulating biological tissue, the device comprising:
- an insertable implant extending along a longitudinal axis from a proximal portion to a distal portion;
a plurality of electrical conductors extending along the longitudinal axis of the implant;
a plurality of microcoils proximate to the distal portion of the implant, each of the microcoils being coupled to at least one of the electrical conductors;
an electrically isolating barrier covering the plurality of microcoils; and
a coupling configured to connect the microcoils to a power source through the plurality of electrical conductors to drive the plurality of microcoils to produce magnetic fields suitable for performing deep brain stimulation (DBS).
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Abstract
An implant for deep brain stimulation (DBS) has an array of electromagnetic microcoils dispersed over the length of the implant. The microcoils produce magnetic fields that are directed into, and induce current in, the adjacent brain tissue. The microcoils may be selectively operated to direct and focus electrical stimulation to targeted areas of the brain. The implant is useful in studying or treating neurophysiological conditions associated with the deep regions of the brain such as Parkinson'"'"'s disease, drug addiction, and depression.
50 Citations
20 Claims
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1. A device for stimulating biological tissue, the device comprising:
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an insertable implant extending along a longitudinal axis from a proximal portion to a distal portion; a plurality of electrical conductors extending along the longitudinal axis of the implant; a plurality of microcoils proximate to the distal portion of the implant, each of the microcoils being coupled to at least one of the electrical conductors; an electrically isolating barrier covering the plurality of microcoils; and a coupling configured to connect the microcoils to a power source through the plurality of electrical conductors to drive the plurality of microcoils to produce magnetic fields suitable for performing deep brain stimulation (DBS). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A brain stimulation device comprising:
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a power source configured to produce a plurality of electric pulses; and an implant configured to receive the plurality of electrical pulses and generate a magnetic field configured to induce an electrical field adjacent to the implant suitable to perform DBS. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A deep brain stimulation system comprising:
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an implant including; a base; an electrical ground layer covering the base; an electrically insulating layer covering the ground layer; a plurality of planar microcoils operable to produce a magnetic field proximate thereto; and a biocompatible dielectric coating covering at least one of the plurality of microcoils and the electrically insulating layer; and a power source configured to power at least one of the plurality of microcoils to produce a magnetic field configured to induce an electrical current in tissue adjacent to the at least one microcoil to perform DBS. - View Dependent Claims (20)
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Specification