Detecting neurochemical or electrical signals within brain tissue
First Claim
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1. A deep brain stimulation system, comprising:
- a probe comprising (i) an electrode configured to apply an electrical stimulus to a region of brain tissue using a fast-scan cyclic voltammetry technique and (ii) a first sensor configured to be located in said region of said brain tissue during application of said electrical stimulus and to generate a signal indicative of a detected level of said neurochemical or said ion present in said region of said brain tissue, anda control unit in communication with said probe, wherein said control unit is configured to receive information from said probe about said detected level of said neurochemical or said ion and is configured to send information to said probe about a level or a timing of electrical stimulus to apply to said region of said brain tissue,wherein said probe comprises two or more sensors including the first sensor, wherein one of said two or more sensors is configured to detect a first neurochemical or ion, wherein another of said two or more sensors is configured to detect a second neurochemical or ion.
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Abstract
This document relates to methods and materials involved in detecting neurochemical signals, electrophysiological signals, ions, or combinations thereof with brain tissue. For example, methods and materials for using probes to detect neurochemical signals (e.g., neurotransmitter concentrations), electrical signals, or combinations thereof during deep brain stimulation are provided.
32 Citations
20 Claims
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1. A deep brain stimulation system, comprising:
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a probe comprising (i) an electrode configured to apply an electrical stimulus to a region of brain tissue using a fast-scan cyclic voltammetry technique and (ii) a first sensor configured to be located in said region of said brain tissue during application of said electrical stimulus and to generate a signal indicative of a detected level of said neurochemical or said ion present in said region of said brain tissue, and a control unit in communication with said probe, wherein said control unit is configured to receive information from said probe about said detected level of said neurochemical or said ion and is configured to send information to said probe about a level or a timing of electrical stimulus to apply to said region of said brain tissue, wherein said probe comprises two or more sensors including the first sensor, wherein one of said two or more sensors is configured to detect a first neurochemical or ion, wherein another of said two or more sensors is configured to detect a second neurochemical or ion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A deep brain stimulation system, comprising:
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a probe comprising (i) an electrode configured to apply an electrical stimulus to a region of brain tissue using a fast-scan cyclic voltammetry technique and (ii) a sensor configured to be located in said region of said brain tissue during application of said electrical stimulus and to generate a signal indicative of a detected level of said neurochemical or said ion present in said region of said brain tissue, and a control unit in communication with said probe, wherein said control unit is configured to receive information from said probe about said detected level of said neurochemical or said ion and is configured to send information to said probe about a level or a timing of electrical stimulus to apply to said region of said brain tissue, wherein said electrical stimulus comprises a voltage scan, wherein said probe is configured to apply different voltage scans within said region of said brain tissue to detect different neurochemicals or ions. - View Dependent Claims (13, 14, 15, 16)
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17. A deep brain stimulation system, comprising:
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a probe comprising (i) an electrode configured to apply an electrical stimulus to a region of brain tissue using a fast-scan cyclic voltammetry technique and (ii) a sensor configured to be located in said region of said brain tissue during application of said electrical stimulus and to generate a signal indicative of a detected level of said neurochemical or said ion present in said region of said brain tissue, and a control unit in communication with said probe, wherein said control unit is configured to receive information from said probe about said detected level of said neurochemical or said ion and is configured to send information to said probe about a level or a timing of electrical stimulus to apply to said region of said brain tissue, wherein said electrode includes multiple independent active areas for detecting different neurochemicals or ions. - View Dependent Claims (18, 19, 20)
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Specification