Defibrillator system

• US 20040243185A1
• Filed: 07/20/2004
• Published: 12/02/2004
• Est. Priority Date: 07/03/2001
• Status: Active Grant

• Current Assignee: Hadasit Medical Research Services & Development Ltd (Hadassah, The Women's Zionist Organization of America, Inc.), Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. (Hebrew University of Jerusalem)
• Original Assignee: Hadasit Medical Research Services & Development Ltd (Hadassah, The Women's Zionist Organization of America, Inc.), Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. (Hebrew University of Jerusalem)
• Inventors: Weiss, Teddy, Gorny, Shraga, Mendelbaum, Mendel, Katz, Iony
• Granted Patent: US 7,340,301 B2
• Time in Patent Office: Days
• US Class Current: 607/5
• CPC Class Codes: A61N 1/3906 characterised by the form of the shockwave
• CPC Class Codes: A61N 1/3912 Output circuitry therefor, e.g. switches

Abstract

The invention provides a portable defibrillation system (2), including: a high voltage switch, and current control circuit (16) connectable to and fed by a power source (6); a high voltage transformer (14) fed by the current control circuit; a pair of electrode pads (12, 12′) connected to the high voltage transformer, and a computer-based controller (18), operationally connected to the current control circuit, for governing the application of current to the high voltage transformer and, in turn, to the electrodes, wherein the high voltage applied to a patient by means of the electrode pads is directly derived from the power source.

Claims

1. A portable defibrillation system, comprising:

a high voltage switch and current control circuit connectable to and fed by a power source;

a high voltage transformer fed by said current control circuit;

a pair of electrode pads connected to said high voltage transformer, and

a computer-based controller, operationally connected to said current control circuit, for governing the application of current to said high voltage transformer and, in turn, to said electrodes;

wherein the high voltage applied to a patient by means of said electrode pads is directly derived from said power source.

2. The portable defibrillation system as claimed in claim 1, further comprising measurement leads connecting said electrodes with said computer-based controller.

3. The portable defibrillation system as claimed in claim 1, wherein said power source is selected from the group consisting of a mains AC power outlet and a battery-operated DC to AC converter.

4. The portable defibrillation system as claimed in claim 1, further comprising an audio-visual alarm connected to said computer-based controller.

5. The portable defibrillation system as claimed in claim 1, further comprising an ECG visual output manual operation connected to said computer.

6. The portable defibrillation system as claimed in claim 1, wherein said computer-based controller is connected to said power source via a zero crossing detector for establishing a system operation reference.

7. The portable defibrillation system as claimed in claim 6, further comprising a main gate synchronizer connected to said zero crossing detector and a patient'"'"'s ECG signal.

8. The portable defibrillation system as claimed in claim 1, further comprising a wave shaper for shaping voltage pulses produced by said high voltage transformer.

9. The portable defibrillation system as claimed in claim 8, wherein said wave shaper is capable of application of pulses with a variable peak output voltage facilitating delivery of an exact amount of energy required.

10. The portable defibrillation system as claimed in claim 1, further comprising an exponential amplitude controller connected in circuit between said power source and said high voltage transformer.