| 摘要 |
<p>This invention is an apparatus and method for assisting an operator to diagnose physical conditions in a patient by collecting and analyzing cyclical body sounds such as heart beat, peripheral vessel sounds, or breath sounds. Several cycles of data are collected by sound detector (12) and digitized by an analog to digital converter (28). Each cycle is converted to the frequency domain (102), and phase fixed (104). Then all of the frequency converted and phase fixed cycles are signal averaged (106) together, and the results displayed (108) to the operator. The cycles may be sorted according to respiratory cycle (204, 304, 404), and averaged (210, 310, 410) in two groups. The cycles may be gated according to the patients ECG (206). The apparatus may also suggest diagnoses (218, 318, 418) or further maneuvers (214) to be performed.</p> |
