Multimodal brain sensing lead
AssigneeNeuroPace, Inc.
InventorThomas K. Tcheng
Life of this patent
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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.
Claims12
An implantable medical device comprising:
- a lead comprising:
- a cylindrical lead body having a distal portion configured to be implanted in or on a brain and a proximal portion;
- and
- 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 sensor assembly, and are configured to implement a plurality of different sensing modalities;
- and
- a host device coupled to the lead and operating in accordance with a timing schedule to implement time multiplexed continuous measurement acquisition during which at least one of the different sensing modalities is implemented to obtain a corresponding measurement, wherein the timing schedule suspends implementation of a first sensing modality during implementation of a second sensing modality, wherein the host device controls the lead to implement at least two different sensing modalities that share a same type of lead component.
Dependencies are inferred from the claim text.