Power supply monitor and control for medical instrument

Details Power supply monitor and control for medical instrument Power supply monitor and control for medical instrument

H - Electricity

02

J

H02J 7/34 (2006.01) G01N 21/86 (2006.01) G01N 33/48 (2006.01) G01N 33/483 (2006.01) G01N 33/49 (2006.01) G01N 33/50 (2006.01) G01N 35/00 (2006.01)

Patent

CA 2168967

An instrument (100) for measuring a clotting characteristic of blood, a blood fraction or a control (514) comprises a controller (284) for orderly de-energizing the instrument ( 100), a power source (122, 334.) for the instrument (100), and a capacitor (1000 µF, 25 V for storing sufficient energy to permit the controller (284) to orderly de-energize the instrument (100). A regulator (360) monitors the voltage supplied to the instrument (100) by the power source (122, 334) and signals (ERROR to P3.2) the controller (284) to orderly de-energize the instrument (100) if the monitored voltage does not exceed a threshold. The controller (284) is coupled to the capacitor to permit the controller (284) to orderly de-energize the instrument (100). The power source (122, 334) and controller (284) are coupled to the regulator (360).

Un instrument (100) servant à mesurer une caractéristique de coagulation du sang, d'une fraction de sang ou d'un témoin (514) comprend un dispositif de commande (284) servant à couper au moment opportun le courant d'excitation alimentant l'instrument (100), une source d'énergie (122, 334) servant à alimenter l'instrument (100), et un condensateur (1000 mu F, 25 V) servant à emmagasiner une énergie suffisante pour permettre au dispositif de commande (284) de couper le courant d'excitation alimentant l'instrument (100). Un régulateur (360) contrôle la tension alimentant l'instrument (100) depuis la source d'énergie (122, 334) et signale (ERROR à P3.2) au dispositif de commande (284) de couper le courant d'excitation alimentant l'instrument (100) si la tension contrôlée ne dépasse pas un seuil. Le dispositif de commande (284) est couplé au condensateur, afin de pouvoir couper le courant d'excitation alimentant l'instrument (100). La source d'énergie (122, 334) et le dispositif de commande (284) sont couplés au régulateur (360).

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