Defibrillator system using multiple external defibrillators and a communications network

• US 5,593,426 A
• Filed: 12/07/1994
• Issued: 01/14/1997
• Est. Priority Date: 12/07/1994
• Status: Expired due to Term

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Heartstream, Inc. (HP Inc.)
• Inventors: Morgan, Carlton B., Powers, Daniel, Mydynski, Steven T., Cole, Clinton, Leventhal, Michael J.
• Primary Examiner(s): Manuel, George
• Assistant Examiner(s): LAYNO, CARL HERNANDZ
• Application Number:
  US08/351,654
• Time in Patent Office: 769 Days
• Field of Search: 607/5, 607/32, 607/60, 128/695, 128/696, 128/903
• US Class Current: 607/5
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: Y10S 128/903 Radio telemetry
• CPC Class Codes: Y10S 128/904 Telephone telemetry

Abstract

A defibrillator system comprising an external defibrillator, a defibrillator communicator and a communication network. In a preferred embodiment, the defibrillator comprises electrodes, an energy source and a controller, with the controller comprising an ECG signal analyzer and local actuator on the defibrillator for delivering an electrical pulse from the energy source to the electrodes. The communication network comprises a communication station, preferably a computer with a modem, and signal carriers, such as telephone lines, so that information can be transmitted from the communicator to the communication station. The defibrillator communicator automatically transmits information to the communication station in response to deployment of the defibrillator. In alternative embodiments, additional information (such as patient ECG data and defibrillator operation data) is sent from the communication station to the communicator. A method of operating such a defibrillator system is included.

Claims

1. A defibrillator system comprising an external defibrillator, a defibrillator communicator and a communication network,

the defibrillator comprising electrodes, an energy source and a controller, the controller comprising an ECG signal analyzer and means for local actuation of the defibrillator to deliver an electrical pulse from the energy source to the electrodes;

the communication network comprising a communication station and signal carriers,

the communication station comprising means for receiving information over the communication network from the defibrillator communicator,

the defibrillator communicator comprising means for automatically transmitting information to the communication station in response to deployment of the defibrillator.

2. The defibrillator system of claim 1 wherein the defibrillator comprises means for local actuation comprising a defibrillator operator interface for operating the defibrillator to discharge a shock into a patient.

3. The defibrillator system of claim 2 wherein the means for local actuation further comprises a control button, knob, wheel or switch.

4. The defibrillator system of claim 1 wherein the means for local actuation comprises means for automatically delivering an electrical pulse from the energy source to the electrodes solely in response to an ECG analysis.

5. The defibrillator system of claim 1 wherein the communication station further comprises means for transmitting information to the defibrillator communicator and the defibrillator communicator further comprises means for receiving information from the communication station.

6. The defibrillator system of claim 1 wherein the defibrillator further comprises means for transmitting information from the defibrillator to the defibrillator communicator.

7. The defibrillator system of claim 6 wherein the defibrillator further comprises means for receiving information from the defibrillator communicator.

8. The defibrillator system of claim 7 wherein the defibrillator means for transmitting and the defibrillator means for receiving comprise an infrared transmitter and an infrared receiver, respectively, the defibrillator communicator further comprising an infrared transmitter and an infrared receiver.

9. The defibrillator system of claim 1 wherein the communication network comprises a telephone network.

10. The defibrillator system of claim 9 wherein the signal carriers are telephone lines, RF signals carriers or a combination thereof.

11. The defibrillator system of claim 1 further comprising a locking holder in which the defibrillator is mounted.

12. The defibrillator system of claim 11 in which the locking holder comprises a lock actuator communicating with the communication station.

13. The defibrillator system of claim 1 further comprising a location determiner communicating with the communication station.

14. The defibrillator of claim 13 wherein the location determiner is part of a global positioning system.

15. The defibrillator system of claim 1 wherein the defibrillator further comprises a defibrillator housing, the defibrillator communicator being disposed outside of the defibrillator housing.

16. The defibrillator system of claim 15 further comprising a holder supporting the defibrillator and the defibrillator communicator.

17. The defibrillator system of claim 16 wherein the defibrillator further comprises a PCMCIA format slot.

18. The defibrillator system of claim 17 in which the defibrillator infrared transmitter and infrared receiver are disposed in the PCMCIA format slot.

19. The defibrillator system of claim 1 wherein the defibrillator further comprises a PCMCIA format slot.

20. The defibrillator system of claim 1 wherein the defibrillator communicator further comprises a video display.

21. The defibrillator system of claim 1 wherein the defibrillator comprises a display.

22. The defibrillator system of claim 1 further comprising a second external defibrillator and a second defibrillator communicator, the second defibrillator communicator comprising means for automatically transmitting information over the communication network to the communication station in response to deployment of the second defibrillator.

23. The defibrillator system of claim 1 wherein the defibrillator system comprises more than one defibrillator in a communication network.

24. The defibrillator system of claim 1 wherein the defibrillator further comprises means for receiving information from the defibrillator communicator.

25. In a system comprising an external defibrillator, a defibrillator communicator and a communication network, a method for operating the defibrillator comprising the following steps:

automatically establishing a communication link between the defibrillator communicator and a station on the communication network in response to deployment of the defibrillator;

applying electrodes to a patient;

monitoring ECG signals from the patient;

analyzing the ECG signals to determine whether to shock the patient; and

locally generating an actuation signal to deliver a shock from the defibrillator to the patient.

26. The method of claim 25 wherein the step of establishing a link comprises the step of automatically contacting an emergency medical care center.

27. The method of claim 25 wherein the step of locally generating an actuation signal comprises the step of manually engaging an actuator on the defibrillator.

28. The method of claim 25 wherein in the step of locally generating an actuation signal, the defibrillator generates an actuation signal solely in response to the analyzing step.

29. The method of claim 25 further comprising the step of transmitting information from the station to the defibrillator communicator.

30. The method of claim 25 further comprising the step of transmitting a signal from the station to unlock the defibrillator from a locked holder.

31. The method of claim 25 further comprising the step of transmitting defibrillator use instructions from the station to the defibrillator communicator.

32. The method of claim 25 further comprising the step of transmitting information from the defibrillator communicator to the station.

33. The method of claim 32 wherein the information transmitted from the defibrillator to the station is selected from a group consisting of defibrillator deployment information, identification data, patient ECG data, defibrillator operation condition data, defibrillator maintenance data, video data, voice data, artifact data, and location data.

34. The method of claim 25 further comprising the step of transmitting a signal from the station to remove the defibrillator from service.

35. The method of claim 25 further comprising the step of transmitting information between the defibrillator and the defibrillator communicator.

36. In a system comprising a plurality of external defibrillators and a communication network, a method for maintaining the defibrillators comprising the following steps:

establishing a communication link between a station on the communication network and a first defibrillator of the plurality of external defibrillators when the first defibrillator is not being used;

transferring defibrillator status information from the first defibrillator to the station;

establishing a communication link between the station and a second defibrillator of the plurality of external defibrillators when the second defibrillator is not being used; and

transferring defibrillator status information from the second defibrillator to the station.

37. The method of claim 36 wherein the establishing step comprises the step of sending a request for defibrillator status information from the station to a defibrillator.

38. The method of claim 36 further comprising the step of sending a signal from the station to a defibrillator to remove that defibrillator from service.

39. The method of claim 36 wherein the establishing step is performed according to a predetermined schedule.

40. The defibrillator system of claim 36 wherein the status information transferred is selected from the group consisting of maintenance data, calibration data, expiration data, and self-test data.

41. The method of claim 36 wherein the establishing step is performed in response to a triggering event.

42. The method of claim 41 wherein the triggering event is movement of a defibrillator operation parameter outside of a predetermined range.

43. The method of claim 41 wherein the triggering event is expiration of a preset operation period of a defibrillator component.

44. The method of claim 41 wherein the triggering event is movement of a local environmental parameter outside a preset range.