Multi-axial heart sounds and murmur detection for hemodynamic-condition assessment

A computer-based system for plural, external-anatomical-site vector monitoring, externally, of a subject's hemodynamic condition utilizing, and based upon, exclusively externally anatomically collected data relating to murmur and heart sound phenomena, detected by, and collected exclusively and collaboratively from, plural, externally anatomically-attached, stably positioned, three-orthogonal-axis accelerometers, said system, when disposed in an operative condition relative to a subject, comprising

• at least a pair of three-orthogonal-axis accelerometers attached, in stable, spaced positions, externally to a subject's anatomy at selected, classically recognized, auscultation sites on the anatomy, and
• signal-data-processing computer structure operatively connected to said accelerometers, possessing appropriate, signal- and data-processing computer substructures, and operable, during at least one cardiac cycle of the subject, to collect for processing, and to process, signal data collaboratively from said at least a pair of anatomy-attached accelerometers, said computer substructures including
• (a) band pass filter substructure substantially directly operatively connected to said accelerometers, operable to apply appropriate, band-pass frequency filtering both of (1) heart sounds that lie in the range of about 5-Hz to about 125-Hz, and (2) murmur sounds that lie in the range of about 75-Hz to about 1.5-kHz,
• (b) operatively connected to said band pass filter substructure, and operatively associated with one another, vector-signal-data processing substructures, including (1) spatial vector magnitude-analyzing substructure for analyzing spatial vector magnitude information, and (2) spatial vector directionality analyzing substructure for analyzing spatial vector directionality information, respectively received from said band pass filter substructure,
• (c) heart-sound and murmur-analysis substructure operatively connected to said spatial vector magnitude-analyzing substructure for performing heart-sound and murmur analysis, and
• (d) heart-sound and murmur-detection and quantification substructure operatively connected to said heart-sound and murmur-analysis substructure, and to said spatial vector directionality analyzing substructure, for performing heart-sound and murmur-detection and quantification,
• said computer structure and its included computer substructures this being constructed for analyzing the referred-to vector magnitude and directionality information for assessment, and an aid to assessment, of the subject's hemodynamic condition.