A method for deploying a locator assembly (500) in or near a heart (101) includes coupling a plurality of electrodes (102) to a device body (512) to form at least a portion of the locator assembly (500), the device body (512) including a self-expandable stent; positioning the device body (512) within an inner cavity (523A) of a sheath (523); inserting the locator assembly (500) within the heart (101); generating relative movement between the locator assembly (500) and the sheath (523) so that at least a portion of the device body (512) is no longer positioned within the inner cavity (523A); receiving electrical signals from the heart (101) with the plurality of electrodes (102); and determining a location of arrhythmogenic foci (732) with the locator assembly (500) based at least in part on the electrical signals received from the heart (101), the device body (512) remaining engaged with the inner cavity (523A) of the sheath (523) while the locator assembly (500) is being used to determine the location of the arrhythmogenic foci (732).

A method for deploying a locator assembly (500) in or near a heart (101) includes coupling a plurality of electrodes (102) to a device body (512) to form at least a portion of the locator assembly (500), the device body (512) including a self-expandable stent; positioning the device body (512) within an inner cavity (523A) of a sheath (523); inserting the locator assembly (500) within the heart (101); generating relative movement between the locator assembly (500) and the sheath (523) so that at least a portion of the device body (512) is no longer positioned within the inner cavity (523A); receiving electrical signals from the heart (101) with the plurality of electrodes (102); and determining a location of arrhythmogenic foci (732) with the locator assembly (500) based at least in part on the electrical signals received from the heart (101), the device body (512) remaining engaged with the inner cavity (523A) of the sheath (523) while the locator assembly (500) is being used to determine the location of the arrhythmogenic foci (732).

An apparatus used in a method for generating an ear electroencephalogram (EEG) signal from an ear of a patient includes: a housing; a first electrode provided on a first portion of the housing received within an ear canal of the ear, such that the first electrode is disposed against a first surface of the ear canal to generate a first ear canal signal; a second electrode provided on a second portion of the housing structured to be received within a concha of the ear when the first portion is received within the ear canal, such that the second electrode is disposed against a surface of concha to generate a concha signal; and electronic circuitry provided within the housing, the electronic circuitry being structured and configured to generate a first in ear signal after receiving the first ear canal signal and the concha signal.

An apparatus used in a method for generating an ear electroencephalogram (EEG) signal from an ear of a patient includes: a housing; a first electrode provided on a first portion of the housing received within an ear canal of the ear, such that the first electrode is disposed against a first surface of the ear canal to generate a first ear canal signal; a second electrode provided on a second portion of the housing structured to be received within a concha of the ear when the first portion is received within the ear canal, such that the second electrode is disposed against a surface of concha to generate a concha signal; and electronic circuitry provided within the housing, the electronic circuitry being structured and configured to generate a first in ear signal after receiving the first ear canal signal and the concha signal.

A catheter system for controlled sympathectomy procedures is disclosed. A catheter system for controlled micro ablation procedures is disclosed. Methods for performing a controlled surgical procedure are disclosed. A system for performing controlled surgical procedures in a minimally invasive manner is disclosed.

Data collection schemes for a wound dressing and related methods are disclosed. In an embodiment, a monitor device for a wound dressing system comprises a wound dressing. The wound dressing comprises an electrode assembly. The electrode assembly comprises a plurality of electrodes including a first set of first electrodes and a second set of second electrodes. The monitor device comprises: a processor, memory and a first interface. The first interface is connected to the processor and the memory. The first interface comprises a plurality of terminals including a first terminal and a second terminal and a data collector coupled to the first terminal and the second terminal. The first terminal is configured to form an electrical connection with a first primary electrode of the first set of first electrodes and the second terminal is configured to form an electrical connection with either a first secondary electrode of the first set of first electrodes or a second primary electrode of the second set of second electrodes. The data collector comprises a data collection controller and is configured to: collect data from the plurality of terminals according to a primary data collection scheme; and collect data from the plurality of terminals according to a secondary data collection scheme, wherein the primary data collection scheme is different from the secondary data collection scheme.

An apparatus and method for preparing the skin of a patient's scalp for attaching electrodes, the method comprising the steps of providing a squeezable member having a hollow interior, wherein a skin abrasive solution is in the interior, wherein the squeezable member includes a restrictive member having a restrictive opening for restricting flow of the skin abrasive solution out of the squeezable member, and an applicator tip through which the solution leaving the restrictive member exits the squeezable member including an interior member and a compressible exterior member having corresponding shapes; squeezing the squeezable member; scrubbing skin portions of the scalp of the patient with the tip; and attaching electrodes to the skin portions of the patient's scalp.

An apparatus and method for preparing the skin of a patient's scalp for attaching electrodes, the method comprising the steps of providing a squeezable member having a hollow interior, wherein a skin abrasive solution is in the interior, wherein the squeezable member includes a restrictive member having a restrictive opening for restricting flow of the skin abrasive solution out of the squeezable member, and an applicator tip through which the solution leaving the restrictive member exits the squeezable member including an interior member and a compressible exterior member having corresponding shapes; squeezing the squeezable member; scrubbing skin portions of the scalp of the patient with the tip; and attaching electrodes to the skin portions of the patient's scalp.

An electrode holder structure and an electroencephalogram cap are provided. The electrode holder structure includes a base, where multiple clamping jaws are disposed circumferentially and the clamping jaws are enclosed to form an accommodation area; an electrode holder, disposed in the accommodation area and fixedly clamped by multiple clamping jaws to form the electrode holder structure. Multiple clamping jaws are disposed circumferentially around the base, and at least one electrode holder is disposed in the multiple layers of accommodation areas formed by multiple clamping jaws, so as to realize stacking disposal of the electrode holder and the seat and improve the entire generality.

Systems, devices, and methods for electrophysiological recording from the eye are disclosed herein. An electroretinography device can detect a biopotential signal from an eye of a subject and transmit the same to a processor. Embodiments of the present technology include one or more features directed to improving the use and operability of an electroretinography device. For example, the device can include a proximal inner surface having a recess feature for removing or receiving fluids trapped between the device and the eye. The recess feature can include one or more grooves, channels or textured surface designed to collect and direct fluids away from the space between the device and the eye. The number, shape, size, position, orientation, and other features of the grooves and channels can be varied.