Adjustable geometry wearable electrodes

Inventors

Bachelder, Brad G. • Chao, Xingjuan

Assignees

Ceribell Inc

Abstract

The present disclosure provides systems, apparatuses, and methods for use of wearable electrode assemblies. The electrode assemblies improve comfort by providing increased overall surface area of their bottom surfaces, which make contact with the patient's scalp and hair. Collapse, compression, or telescoping of the bottom surface will thereby decrease the direct force and/or pressure applied by the distal member or members of the bottom surfaces to the skin. This may be advantageous in patients who have little to no hair in electrode contact areas, patient populations that are particularly skin-sensitive, and/or patients which must wear the electrode assemblies of an extended time period. The electrode assemblies further include structures to dispense and/or maintain conductive gel placed over the patient's skin, thereby maintaining electrical connection quality, and/or to facilitate the clearing of skin and/or hair prior to establishing an electrical connection.

Core Innovation

The invention relates to an electrode assembly for a patient in which an electrode body defines an interior reservoir for storing a tissue conductive fluid or gel. The electrode body has an opening to dispense the tissue conductive fluid or gel and includes a patient contacting surface. The electrode assembly is configured so that dispensing and contact are combined within the electrode body while maintaining a reservoir for the tissue conductive fluid or gel.

At least a portion of the electrode body is at least partially adjustable, collapsible, or compressible in a direction toward the patient skin in response to a force applied on the electrode body toward the skin. This force-responsive portion increases contact area between the patient contacting surface and the patient. The adjustable, collapsible, or compressible portion has a shape tapering toward the opening of the electrode body.

The invention further includes embodiments in which the electrode assembly is rotatably mounted relative to a carrier system. In these embodiments, the electrode body comprises an adapter for an external dispenser of the tissue conductive fluid or gel, and the adapter is configured to align a longitudinal axis of the external dispenser with a rotational axis of the electrode assembly, enabling a functional interface between the dispenser and the rotatable electrode assembly.

Claims Coverage

The partial content explicitly provides two independent claims. Across these claims, the core coverage centers on an electrode body with a reservoir and dispensing opening, a force-responsive adjustable, collapsible, or compressible taper toward the opening that increases contact area, and a rotatable mounting with an adapter aligning the dispenser axis with the electrode rotational axis.

Independent claim coverage is directed to an electrode body that stores and dispenses tissue conductive fluid or gel through an opening to a patient contacting surface, with a force-responsive adjustable, collapsible, or compressible tapered portion that increases contact area; the second independent claim adds rotatable mounting relative to a carrier system and an adapter aligning an external dispenser’s longitudinal axis with the electrode assembly’s rotational axis.

Stated Advantages

Documented Applications