Patent ID: 7291111
Filing Date: 2007-11-06
Classification: A61B

Abstract:
1. A diagnostic tool for detecting an obstruction in a coronary artery, the diagnostic tool comprising: a plurality of passive, non-invasive acoustic sensors and an electrical sensor; a data storage unit adapted to store information relating to locations of the acoustic sensors with respect to at least one anatomical feature of a patient; and a signal processor adapted to receive and process signals corresponding to a heart beat when the plurality of acoustic sensors and the electrical sensor are attached to the chest of the patient, the signal processor further adapted to receive and process the information relating to locations of the acoustic sensors on the chest of the patient; the signal processor being programmed to conduct a wavelet transform on the signals, the wavelet transform providing at least one of a frequency analysis and a time domain analysis for the signals, and the signal processor being programmed to identify a diastolic portion of the signals for a plurality of heart-beats, to process information relating to the wavelet transform of the signals, and to determine the severity and the location of an obstruction in a coronary artery, wherein the location of the obstruction is determined at least in part from information relating to the wavelet transform of the signals and the stored information relating to locations of the acoustic sensors.