External defibrillator system with diagnostic module

• US 6,304,780 B1
• Filed: 08/31/2000
• Issued: 10/16/2001
• Est. Priority Date: 03/07/1997
• Status: Expired due to Term

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Cardiac Science Operating Company (Cardica Incorporated)
• Inventors: Owen, James M., Totman, Mark H., Fincke, Randall W., OʼLeary, James P.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US09/653,174
• Time in Patent Office: 411 Days
• Field of Search: 607/5, 607/27
• US Class Current: 607/5
• CPC Class Codes: A61N 1/0452 Specially adapted for transcutaneous muscle stimulation [TMS]
• CPC Class Codes: A61N 1/0456 Specially adapted for transcutaneous electrical nerve stimulation [TENS]
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/0468 Specially adapted for promoting wound healing
• CPC Class Codes: A61N 1/0472 Structure-related aspects
• CPC Class Codes: A61N 1/0476 Array electrodes (including any electrode arrangement with more than one electrode for at least one of the polarities)
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/0496 characterised by using specific chemical compositions, e.g. hydrogel compositions, adhesives
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]
• CPC Class Codes: A61N 1/3918 characterised by shock pathway, e.g. by electrode configuration
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3937 Monitoring output parameters
• CPC Class Codes: A61N 1/3987 characterised by the timing or triggering of the shock
• CPC Class Codes: A61N 1/3993 User interfaces for automatic external defibrillators

Abstract

A method of treating a patient for ventricular tachycardia using a wearable defibrillator includes monitoring the patient for a predetermined condition via one or more electrodes on the defibrillator, sending a message to the patient in response to the predetermined condition, activating the defibrillator so that the defibrillator delivers defibrillation energy to the patient, and storing at least one of the results of the monitoring, sending and activating steps in a memory on the defibrillator. The method also includes downloading information stored in the memory of the defibrillator to a base station having an external interface, and transmitting the information downloaded from the memory of the base station to an external location via the external interface of the base station.

Claims

1. A base station which interfaces to an external defibrillator including a diagnostic indicator, the base station including:

a memory which stores computer-executable process steps defining a diagnostic test;

a coupler adapted to couple said base station to the external defibrillator; and

a processor which executes the process steps stored in said memory to perform said diagnostic test on the external defibrillator and to generate a signal for said diagnostic indicator, said signal being indicative of the status of the external defibrillator based on said diagnostic test.

2. The base station according to claim 1 wherein the defibrillator is adapted to detect operational defects therein, the defibrillator transmits information relating to the operational defects to said base station, wherein said base station is adapted to receive and store said information.

3. The base station according to claim 1 wherein the base station includes an external interface for transmitting information to an external location;

and

wherein the base station transmits results of said diagnostic test to said external location.

4. A base station selectively coupled to an external defibrillator and comprising:

a base interface for coupling to defibrillator interface;

a diagnostic module adapted to perform selective tests on one of said external defibrillator and said base station; and

a display coupled to said diagnostic module to display indicating a result of said selective tests.

5. The base station according to claim 4 wherein the external defibrillator includes a self test module and a memory, the self-test module being adapted to perform a self-test on said defibrillator and wherein said diagnostic module is adapted to receive information from said self-test module and to show a message on said display based on said self-test.

6. The base station according to claim 4 wherein said diagnostic module is adapted to measure a defibrillator dependent characteristic and to generate a signal indicative of said defibrillator dependent characteristic.

7. The base station according to claim 4 wherein the external defibrillator includes a sound generator for emitting sounds and wherein said diagnostic module is adapted to generate signals that are sent to the external defibrillator to activate said sound generator to determine if said sound generator is operational.

8. The base station according to claim 4 wherein said base is adapted to send programming information to said defibrillator and wherein said diagnostic module analyses the programming data received by said defibrillator to insure that the programming data is accurate.

9. The base station according to claim 4 wherein said diagnostic module is adapted to compare data sent to the defibrillator with data received from the defibrillator.

10. An external defibrillation system comprising:

a defibrillator for delivering predetermined defibrillation energy to a patient;

a diagnostic indicator which indicates operational defects in the defibrillator; and

a diagnostic interface performs diagnostics on the defibrillator in order to detect operational defects in the defibrillator;

wherein the indicator provides an indication of operational defects in the defibrillator when said diagnostic interface detects operational defects in the defibrillator;

wherein said diagnostic interface is adapted to transmit results of diagnostics, including information relating to operational defects of the defibrillator to an external location.