Multimodal brain sensing lead
First Claim
1. A system for measuring physiological information from a patient, the system comprising:
- a lead configured to be implanted in the patient, the lead comprising;
a body having a distal portion,a plurality of lead components at the distal portion, wherein the plurality of lead components includes a plurality of macroelectrodes, a plurality of microelectrodes, and at least one optical assembly, anda lead electronics module comprising a lead signal processor configured to process signals from one or more of the plurality of lead components to obtain at least one of a plurality of first measurements including a neuronal single unit activity measurement, a neuronal multi unit activity measurement, an optical blood volume measurement, or an optical blood oxygenation measurement; and
a host coupled to the lead, the host comprising;
a host control module configured to generate and output host control signals,a host power supply configured to provide power, anda host signal processor configured to process signals from one or more of the plurality of lead components to obtain at least one of a plurality of second measurements including neuronal field potential measurement or a rheoencephalography measurement,wherein the host control module and the host power supply are electrically coupled to the lead electronics module, and the lead electronics module is configured to selectively enable, based on the host control signals;
a) a first sensing modality that provides one of the plurality of first measurements to the host by electrically coupling at least one of the plurality of lead components to at least one of;
i) an input to the lead signal processor, and ii) the host power supply, and electrically coupling an output of the lead signal processor to the host, andb) a second sensing modality that enables the host signal processor to obtain one of the plurality of second measurement by electrically coupling at least one of the plurality of lead components to the host signal processor, bypassing the lead signal processor.
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Accused Products
Abstract
A medical lead with at least a distal portion thereof implantable in the brain of a patient is described, together with methods and systems for using the lead. The lead is provided with at least two sensing modalities (e.g., two or more sensing modalities for measurements of field potential measurements, neuronal single unit activity, neuronal multi unit activity, optical blood volume, optical blood oxygenation, voltammetry and rheoencephalography). Acquisition of measurements and the lead components and other components for accomplishing a measurement in each modality are also described as are various applications for the multimodal brain sensing lead.
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Citations
22 Claims
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1. A system for measuring physiological information from a patient, the system comprising:
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a lead configured to be implanted in the patient, the lead comprising; a body having a distal portion, a plurality of lead components at the distal portion, wherein the plurality of lead components includes a plurality of macroelectrodes, a plurality of microelectrodes, and at least one optical assembly, and a lead electronics module comprising a lead signal processor configured to process signals from one or more of the plurality of lead components to obtain at least one of a plurality of first measurements including a neuronal single unit activity measurement, a neuronal multi unit activity measurement, an optical blood volume measurement, or an optical blood oxygenation measurement; and a host coupled to the lead, the host comprising; a host control module configured to generate and output host control signals, a host power supply configured to provide power, and a host signal processor configured to process signals from one or more of the plurality of lead components to obtain at least one of a plurality of second measurements including neuronal field potential measurement or a rheoencephalography measurement, wherein the host control module and the host power supply are electrically coupled to the lead electronics module, and the lead electronics module is configured to selectively enable, based on the host control signals; a) a first sensing modality that provides one of the plurality of first measurements to the host by electrically coupling at least one of the plurality of lead components to at least one of;
i) an input to the lead signal processor, and ii) the host power supply, and electrically coupling an output of the lead signal processor to the host, andb) a second sensing modality that enables the host signal processor to obtain one of the plurality of second measurement by electrically coupling at least one of the plurality of lead components to the host signal processor, bypassing the lead signal processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification