Defibrillator with improved utilization of the accumulator energ

Details Defibrillator with improved utilization of the accumulator energ Defibrillator with improved utilization of the accumulator energ

1998-11-03

2000-05-30

Schaetzle, Kennedy J.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 29, A61N 100

Patent

active

060700998

ABSTRACT:
The invention relates to a defibrillator having a capacitor (4) which is chargeable via a DC-DC converter (3) by an accumulator (i.e., rechargeable battery) (1). Between the accumulator (1) and the capacitor (4) there is situated a control device (2) which, as the internal resistance (Ri) of the accumulator (1) increases, draws a lower current from the latter, so that the output voltage of the accumulator (1) is kept approximately constant. Before the defibrillator is automatically deactivated and energy already stored in the capacitor is internally destroyed, the controller interrupts the charging of the capacitor when the residual energy remaining in the accumulator is less than an amount required to charge the capacitor to the desired energy.

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patent: 5925068 (1999-07-01), Kroll

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