System for analyzing and imaging respiratory tract sounds

Details System for analyzing and imaging respiratory tract sounds System for analyzing and imaging respiratory tract sounds

A - Human Necessities

61

B

A61B 5/08 (2006.01) A61B 7/02 (2006.01) G01S 15/89 (2006.01)

Patent

CA 2472785

A system (100) for analyzing respiratory tract sounds in an individual (110). A plurality of N transducers (105) are fixed over the thorax. The ith transducer is fixed at a location xi, and generates a signal P(xi, t) indicative of pressure waves at the location xi, for i=1 to N. A processor (135) receives the signals P(xi,t) and determines an average acoustic energy P(x,t1,t2) at at least one position x over a time interval where P is determined in an algorithm involving at least one of the signals P(xi,t).

L'invention concerne un système (100) permettant d'analyser les bruits des voies respiratoires d'un individu (110). Une pluralité de N transducteurs (105) est fixée sur le thorax du patient. Un transducteur est fixé à un emplacement x¿i?, et produit un signal P(x¿i?,t) indiquant des ondes de pression à l'emplacement x¿i?, pour i=1 sur N. Un processeur (135) reçoit les signaux P(x¿i?,t)et détermine une énergie acoustique moyenne ~P(x,t¿1?,t¿2?) au moins à un emplacement x sur un intervalle de temps dans lequel ~<I>P</I> est déterminé dans un algorithme impliquant au moins un des signaux P(x¿i?,t).

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