Defibrillator system condition indictator

• US 5,591,213 A
• Filed: 09/21/1995
• Issued: 01/07/1997
• Est. Priority Date: 05/18/1993
• Status: Expired due to Term

• Current Assignee: Philips Electronics North America Corporation (Koninklijke Philips N.V.)
• Original Assignee: Heartstream, Inc. (HP Inc.)
• Inventors: Morgan, Carlton B.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US08/532,863
• Time in Patent Office: 474 Days
• Field of Search: 607/4-9, 607/27, 607/28, 607/6, 607/63
• US Class Current: 607/5
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/048 Electrodes characterised by a specific connection between lead and electrode
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3931 Protecting, e.g. back-up systems

Abstract

A defibrillator and electrode system that gives the user a visible and/or audible indication of the condition of the electrodes and other parts of the defibrillator system prior to deployment of the electrodes and use of the defibrillator. In a preferred embodiment of the method of this invention, a patient simulation and analyze circuit within the defibrillator periodically tests the condition of the system and provides the user with a visual indication of the system'"'"'s condition.

Claims

1. A defibrillator system comprising:

a defibrillator, the defibrillator comprising a defibrillator circuit and an electrode interface, the defibrillator circuit comprising an energy source, the electrode interface comprising conductors in electrical communication with the energy source;

means for periodically operating the energy source to discharge a test pulse through the conductors;

a patient simulator communicating with the conductors;

a test pulse analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the test pulse analyzer.

2. The defibrillator system of claim 1 further comprising electrodes attached to the conductors.

3. The defibrillator system of claim 1 wherein the means for periodically operating comprises a microprocessor.

4. The defibrillator system of claim 1 wherein test pulse analyzer comprises a microprocessor.

5. The defibrillator system of claim 4 wherein the test pulse analyzer further comprises means for sensing an electrical parameter.

6. The defibrillator system of claim 1 wherein the fault indicator comprises a visual display.

7. The defibrillator system of claim 6 wherein the visual display comprises a light.

8. A defibrillator system comprising:

a defibrillator, the defibrillator comprising a defibrillator circuit and an electrode interface, the defibrillator circuit comprising an energy source, the electrode interface comprising conductors in electrical communication with the energy source;

means for periodically delivering a test signal through the conductors;

a patient simulator communicating with the conductors;

a test signal analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the test signal analyzer.

9. The defibrillator system of claim 8 further comprising electrodes attached to the conductors.

10. The defibrillator system of claim 8 wherein the means for periodically delivering a test signal comprises means for operating the energy source to discharge a test pulse through the conductors.

11. The defibrillator system of claim 8 wherein the means for periodically delivering a test signal comprises a microprocessor.

12. The defibrillator system of claim 11 wherein the means for periodically delivering a test signal further comprises a D/A convertor.

13. The defibrillator system of claim 8 wherein the test signal analyzer comprises a microprocessor.

14. The defibrillator system of claim 13 wherein the test signal analyzer further comprises an A/D convertor.

15. A defibrillator system comprising:

defibrillator, the defibrillator comprising a defibrillator circuit and an electrode interface, the defibrillator circuit comprising an energy source, the electrode interface comprising conductors in electrical communication with the energy source;

means for periodically delivering a test signal through the conductors;

a patient simulator communicating with the conductors;

a test signal analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the test signal analyzer,

wherein the test signal is an ECG signal pattern.

16. A defibrillator system comprising:

a defibrillator, the defibrillator comprising a defibrillator circuit and an electrode interface, the defibrillator circuit comprising an energy source, the electrode interface comprising conductors in electrical communication with the energy source;

means for periodically delivering a test ECG signal through the conductors;

means for periodically delivering a test pulse through the conductors;

a patient simulator communicating with the conductors;

an analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the analyzer.

17. A test system for a defibrillator, the system comprising:

an energy source;

conductors in electrical communication with the energy source;

means for periodically operating the energy source to discharge a test pulse through the conductors;

a patient simulator communicating with the conductors;

a test pulse analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the test pulse analyzer.

18. The system of claim 17 further comprising electrodes attached to the conductors.

19. The system of claim 17 wherein the means for periodically operating comprises a microprocessor.

20. The system of claim 17 wherein test pulse analyzer comprises a microprocessor.

21. The system of claim 20 wherein the test pulse analyzer further comprises means for sensing an electrical parameter.

22. The system of claim 17 wherein the fault indicator comprises a visual display.

23. The system of claim 22 wherein the visual display comprises a light.

24. A test system for a defibrillator, the system comprising:

an energy source;

conductors in electrical communication with the energy source;

means for periodically delivering a test signal through the conductors;

a patient simulator communicating with the conductors;

a test signal analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the test signal analyzer.

25. The system of claim 24 further comprising electrodes attached to the conductors.

26. The system of claim 24 wherein the means for periodically delivering a test signal comprises means for operating the energy source to discharge a test pulse through the conductors.

27. The system of claim 24 wherein the test signal is an ECG signal pattern.

28. The system of claim 24 wherein the means for periodically delivering a test signal comprises a microprocessor.

29. The system of claim 28 wherein the means for periodically delivering a test signal further comprises a D/A convertor.

30. The system of claim 24 wherein the test signal analyzer comprises a microprocessor.

31. The system of claim 30 wherein the test signal analyzer further comprises an A/D convertor.

32. A test system for a defibrillator, the system comprising:

an energy source;

conductors in electrical communication with the energy source;

means for periodically delivering a test ECG signal through the conductors;

means for periodically delivering a test pulse through the conductors;

a patient simulator communicating with the conductors;

an analyzer communicating with the conductors and the patient simulator; and

a fault indicator communicating with the analyzer.