Minimally invasive electrode and delivery device and related systems and methods
Inventors
Park, Michael C. • Christianson, Mark A. • Kesti, Timothy J.
Assignees
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Publication Number
US-11883649-B2
Publication Date
2024-01-30
Expiration Date
Abstract
Disclosed herein are a minimally invasive electrode and delivery device, along with various related components, devices, methods, and technologies. The delivery device comprises a proximal elongate shaft, a paddle coupled to a distal end of the proximal shaft, and an irrigation/suction sleeve disposable over the paddle. Disclosed also is a fan-like cortical electrode device comprising at least two electrode segments, wherein each of the at least two electrode segments comprises a thin film pad, a plurality of electrode contacts disposed on the thin film pad, and a proximal connector attached to a proximal end of the thin film pad.
Core Innovation
The invention is a fan-like cortical electrode device and/or fan-like cortical electrode system comprising at least two separate electrode segments. Each electrode segment includes a thin film pad having a substantially triangular shape with a first width at a distal end greater than a second width at a proximal end, a plurality of electrode contacts disposed on the thin film pad, and a proximal connector attached to the proximal end of the thin film pad.
The electrode segments are configured to be delivered or deployed separately, and the thin film pads of the at least two electrode segments are disposed adjacent to each other in a fanned arrangement. The fanned arrangement places the electrode contacts in a deployed configuration intended to form partial-to-full circular coverage of a patient's brain surface, including sector and half-circle configurations and also a full circle configuration.
Following delivery and/or deployment, the proximal connectors of all the at least two electrode segments are configured to be stacked together in a stacked configuration such that the proximal connector of each electrode segment is configured to be disposed through a single opening in a skull of a patient. In the disclosed thin film pad constructions, the pad can include first and second thin film layers with openings in the first layer so that electrode contacts are positioned between the layers and are accessible through corresponding openings, and the thin film pad can include at least one suture opening.
Claims Coverage
The partial content provides three independent claims (clm-00001, clm-00008, clm-00015). Across these claims, the inventive features center on a fan-like cortical electrode device/system using at least two separately deployable triangular thin-film-pad electrode segments with stacked proximal connectors through a single skull opening and deployed in adjacent fanned geometry for brain coverage, with optional refinements for circular coverage geometry, layered thin-film pad access openings, and suture openings.
Fan-like cortical electrode segments with triangular thin film pads and stacked proximal connectors through a single skull opening
A fan-like cortical electrode device comprising at least two separate electrode segments; each electrode segment has a substantially triangular shaped thin film pad with a distal end wider than a proximal end, a plurality of electrode contacts disposed on the thin film pad, and a proximal connector; the at least two separate electrode segments are delivered separately such that outer edges of the thin film pads form a fanned arrangement; and the proximal connectors of all the electrode segments are configured to be stacked together such that each proximal connector is configured to be disposed through a single opening in a skull of a patient.
Fan-like cortical electrode system with separate deployable segments providing maximal brain coverage
A fan-like cortical electrode system comprising at least two separate electrode segments; each electrode segment has a thin film pad having a substantially triangular shape with a distal end wider than a proximal end, a plurality of electrode contacts disposed on the thin film pad, and a proximal connector; each electrode segment is deployable separately and positionable in relation to each other such that the thin film pad of each segment is disposed adjacent to each other in a fanned arrangement to provide maximal coverage of a patient's brain.
Fan-like cortical electrode system with stacked proximal connectors through a single skull opening
A fan-like cortical electrode system comprising at least two separate electrode segments; each electrode segment has a substantially triangle-shaped thin film pad wider at a distal end than at a proximal end, a plurality of electrode contacts disposed on the thin film pad, and a proximal connector; each electrode segment is deployable separately and positionable so the thin film pads are disposed adjacent to each other in a fanned arrangement; and the proximal connector of each electrode segment is disposed in a stacked configuration upon deployment such that the proximal connector of each electrode segment can be disposed through a single opening in a skull of the patient.
Collectively, the independent claim coverage focuses on fan-like cortical electrode configurations that use at least two separately deployable triangular thin-film-pad electrode segments with electrode contacts on the pads, fanned adjacent placement for cortical coverage, and a proximal-connector stacking arrangement enabling passage through a single skull opening; the dependent refinements further specify partial-to-full circular coverage geometry and structural thin-film pad features including layered contact accessibility openings and suture openings.
Stated Advantages
Provides maximal coverage of a patient's brain (as stated in the independent claim).
Documented Applications
No documented applications found
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