Multiple electrode lead and a system for deep electrical neurostimulation including such a lead
First Claim
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1. A lead for deep electrical neurostimulation, the lead comprising:
- a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and
a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith;
in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod;
wherein said lead presents a total length lying in the range 4 cm to 10 cm.
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Abstract
A lead for deep electrical neurostimulation comprising a rod of biocompatible material and a blade, also of biocompatible material, secured to one end of the rod and in alignment therewith. The blade presents two main faces and a plurality of electrodes disposed on at least one of the two main faces in a two-dimensional configuration. The electrodes are connected to conductor elements disposed inside or on a surface of said rod. A deep electrical neurostimulation system comprising an electrical pulse generator connected to at least one lead of the above-described type is also disclosed.
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Citations
9 Claims
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1. A lead for deep electrical neurostimulation, the lead comprising:
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a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; wherein said lead presents a total length lying in the range 4 cm to 10 cm. - View Dependent Claims (2)
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3. A lead for deep electrical neurostimulation, the lead comprising:
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a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; wherein said lead presents a substantially planar shape, with a thickness lying in the range 25 μ
m to 3 mm. - View Dependent Claims (4)
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5. A lead for deep electrical neurostimulation, the lead comprising:
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a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; wherein said main faces of the blade present an area lying in the range 10 mm2 to 500 mm2. - View Dependent Claims (6)
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7. A lead for deep electrical neurostimulation, the lead comprising:
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a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; wherein said blade presents a sickle shape, an elliptical shape, or a shape that matches the outline of a CG25 zone of a human brain.
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8. A lead for deep electrical neurostimulation, the lead comprising:
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a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith; in which said blade presents two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; in which said electrodes present a covering of electrically-conductive multi-wall carbon nanotubes covering pellets of silicon fitted onto the surface of said electrodes.
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9. A deep electrical neurostimulation system comprising:
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an electrical pulse generator for deep electrical neurostimulation; and at least one lead for deep electrical neurostimulation having its electrodes electrically connected to said electrical pulse generator, wherein the lead comprises; a rod of biocompatible material, having a stiffness which is sufficient for allowing its insertion into a brain of a patient; and a blade, also of biocompatible material, secured to one end of said rod and in alignment therewith, said blade having two main faces and a plurality of electrodes disposed on at least one of said two main faces in a two-dimensional configuration, said electrodes being connected to conductor elements disposed inside or on a surface of said rod; and wherein said electrical pulse generator is configured to generate electrical impulsion adapted for treating clinical depression by stimulating a CG25 zone of a human brain.
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Specification