Abstract: Exemplary system and methods for assessing ECG data quality. The system includes a processor that decomposes a continuous ECG signal into multiple epochs and generates a quality score for each epoch. A first rolling window of a first specified width is applied to the decomposed ECG signal to capture plural quality scores from a sequence of epochs in the plural epochs. The processor computes a local metric from the plural quality scores captured by the first rolling window. The processor captures plural quality scores and computes associated local metrics across an entirety of the decomposed ECG signal. Once completed the processor executes one or more application modules for: generating a quality alert signal and generating a quality visualization signal for displaying a color map corresponding to signals associated with a local metric. The output of the one or more executed application modules is passed to a user interface.

Abstract: A sampling probe includes a housing, a cover and a guide. The housing defines a trough having an opening, at least a portion of the opening being in an insertion direction of the probe. The cover is axially movable with respect to the housing between an open position in which a substance is allowed to pass into the trough and a closed position in which the cover covers the opening to retain a predetermined volume of the substance in the trough. The cover is flexible. The guide is configured to guide axial movement of the cover between the open and closed positions. The guide is configured to direct the cover in a curved path.