Cardiac biopotential analysis system and method

A - Human Necessities – 61 – B

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A61B 5/0402 (2006.01) A61B 5/044 (2006.01) G06F 17/00 (2006.01)

Patent

CA 2064791

Patient leads (101) are connected to a patient (100) and ECG signals are picked up by the leads and transmitted over a patient cable (102) to a 16-channel ECG data acquisition system (104) with a serial interface. The data acquisition system (104) filters, amplifies and digitizes the ECG waveforms and sends the digitized data to a microcomputer (110) via a high speed synchronous serial line (106). The microcomputer (110) processes the serial data stream in order to generate computed data arrays. These arrays are then used in conjunction with predetermined reference arrays to produce diagnostic indices. These indices are displayed on the graphics display (108). Printed output is available on the hard copy output device (116) which is connected to the microcomputer (110). Interaction between the operator and the system is provided by means of a keyboard (112) and pointing device (114) with feedback on the graphics display (108).

Des fils (101), reliés à un patient (100), recueillent des signaux d'ECG qu'ils transmettent par câble (102) à un système de collecte de données ECG à 16 canaux (104) muni d'une interface sérielle. Ce système (104) filtre, amplifie, et convertit en numérique les formes de l'onde de l'ECG et transmet ces données à un micro-ordinateur (110) au moyen d'une ligne sérielle synchrone à grande vitesse (106). Le micro-ordinateur traite ce flux de données de manière à produire des tableaux de données. Ceux-ci sont utilisés en combinaison avec des tableaux de référence prédéterminés pour produire des indices de diagnostic. Ces indices s'affichent sur l'écran (108). Une sortie papier est disponible sur l'imprimante (116) reliée au micro-ordinateur (110). L'interaction entre l'opérateur et le système s'effectue au moyen d'un clavier (112) et d'une "souris" (114) avec rétroaction sur l'écran (108).

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