Implantable atrial defibrillator and system having multiple channel electrogram telemetry and method
First Claim
1. An implantable defibrillator for applying cardioverting electrical energy to a human heart, said defibrillator comprising:
- first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram;
second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram;
cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart;
formatting means for formatting the first and second electrogram data for combined transmission; and
transmitting means for transmitting the formatted first and second electrogram data to a nonimplantable external receiver for simultaneous display of the first and second electrograms.
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Accused Products
Abstract
A defibrillator system includes an implantable defibrillator and a non-implantable external receiver. The implantable defibrillator includes a first sense channel for generating a first electrogram and a second sense channel for generating a second electrogram. The defibrillator further includes a cardioverter for applying cardioverting electrical energy to the heart and a transmitter for transmitting the first and second electrograms. The non-implantable receiver includes a display for simultaneously displaying the first and second electrograms. The implantable defibrillator may further include an event detector having a threshold for detecting cardiac events in one of the electrograms and an event marker generator for generating an event marker for each detected cardiac event. The transmitter transmits the event detection markers and the display displays the event detection markers and the thresholds with the corresponding electrogram.
74 Citations
26 Claims
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1. An implantable defibrillator for applying cardioverting electrical energy to a human heart, said defibrillator comprising:
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first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram; second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram; cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart; formatting means for formatting the first and second electrogram data for combined transmission; and transmitting means for transmitting the formatted first and second electrogram data to a nonimplantable external receiver for simultaneous display of the first and second electrograms. - View Dependent Claims (2, 3)
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4. An implantable defibrillator for applying cardioverting electrical energy to a human heart, said defibrillator comprising:
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first sensing means for sensing electrical activity of the heart and generating a first electrogram; second sensing means for sensing electrical activity of the heart and generating a second electrogram; cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart; a first event detector for detecting cardiac events in the first electrogram; a second event detector for detecting cardiac events in the second electrogram; detection marker generating means for generating first and second cardiac event detection markers when the first and second event detectors respectively detect said cardiac events in the first and second electrograms; and transmitting means for transmitting the first and second electrograms and at least one of the first and second cardiac event detection markers with a corresponding one of the first and second electrograms to a nonimplantable external receiver. - View Dependent Claims (5)
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6. A defibrillator system for applying cardioverting electrical energy to a human heart, said system comprising:
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an implantable defibrillator including first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram, second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram, cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart, first formatting means for formatting the first and second electrogram data for combined transmission, and transmitting means for transmitting the formatted first and second electrogram data; and nonimplantable receiving means for receiving the formatted first and second electrogram data and including second formatting means for reformatting the received formatted first and second electrogram data and display means responsive to the reformatted first and second electrogram data for simultaneously displaying the first and second electrograms in time aligned relation. - View Dependent Claims (7, 8)
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9. A defibrillator system for applying cardioverting electrical energy to a human heart, said system comprising:
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an implantable defibrillator including first sensing means for sensing electrical activity of the heart and generating a first electrogram, second sensing means for sensing electrical activity of the heart and generating a second electrogram, cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart, a first event detector for detecting cardiac events in the first electrogram, a second event detector for detecting cardiac events in the second electrogram, detection marker generating means for generating first and second cardiac event detection markers when the first and second event detectors respectively detect said cardiac events in the first and second electrograms, and transmitting means for transmitting the first and second electrograms and at least one of the first and second cardiac event detection markers with a corresponding one of the first and second electrograms; and nonimplantable receiving means for receiving the first and second electrograms and including display means for simultaneously displaying the first and second electrograms and the at least one of the first and second cardiac event detection markers with the corresponding one of the first and second electrograms display means simultaneously displaying the first and second electrograms. - View Dependent Claims (10, 11, 12)
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13. A defibrillator system for applying cardioverting electrical energy to a human heart, said system comprising:
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an implantable defibrillator including sensing means for sensing electrical activity of the heart and generating an electrogram; an event detector having a threshold for detecting cardiac events in the electrogram, an event marker generator for generating event detection markers responsive to detection of said cardiac events, cardioverting means responsive to cardiac event detection for applying the cardioverting electrical energy to the heart, and transmitting means for transmitting the electrogram and the event detection markers; nonimplantable receiving means for receiving the electrogram and the event detection markers; and display means for simultaneously displaying the electrogram, the threshold, and the event detection markers. - View Dependent Claims (14, 15)
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16. In an implantable defibrillator, a method of reporting the condition of a heart, said method including the steps of:
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sensing electrical activity of the heart and generating first and second electrogram data representing first and second electrograms respectively; formatting the first and second electrogram data for combined transmission; transmitting the formatted first and second electrogram data to an external nonimplantable receiver; receiving the first and second formatted electrogram data; reformatting the received formatted electrogram data for simultaneous display; and simultaneously displaying the first and second electrograms. - View Dependent Claims (17)
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18. In an implantable defibrillator, a method of reporting the condition of a heart, said method including the steps of:
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sensing electrical activity of the heart and generating first and second electrograms; detecting cardiac events in the first electrogram; detecting cardiac events in the second electrogram; generating first and second cardiac event detection markers upon detecting said cardiac events in the first and second electrograms; transmitting the first and second electrograms and at least one of first and second cardiac event detection marks with a corresponding one of the first and second electrograms to an external nonimplantable receiver; receiving the first and second electrograms and the at least one of the first and second cardiac event detection markers; and displaying the at least one of the first and second cardiac event detection markers simultaneously with the corresponding one of the first and second electrograms. - View Dependent Claims (19, 20, 21)
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22. A method of verifying detection capability of an implantable defibrillator, the method including the steps of:
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with the implantable defibrillator; sensing electrical activity of the heart and generating an electrogram, establishing a threshold and with the threshold, detecting cardiac events in the electrogram, generating an event detection marker with each detection of a cardiac event, and transmitting the electrogram and the event detection markers to a nonimplantable external receiver, and with a nonimplantable receiver; receiving the electrogram and the event detection markers, and simultaneously displaying the electrogram, the threshold, and the event detection markers. - View Dependent Claims (23)
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24. An implantable defibriltator for applying cardioverting electrical energy to a human heart, said defibrillator comprising:
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first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram; second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram; cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart; and transmitting means for transmitting the first electrogram data with the second electrogram data to a nonimplantable external receiver for simultaneous display of the first and second electrogram.
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25. A defibrillator system for applying cardioverting electrical energy to a human heart, said system comprising:
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an implantable defibrillator including first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram, second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram, cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart, and transmitting means for transmitting the first electrogram data with the second electrogram data; and nonimplantable receiving means for receiving the first and second electrogram data and including display means responsive to the received first and second electrogram data for simultaneously displaying the first and second electrograms.
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26. A defibrillator system for applying cardioverting electrical energy to a human heart, said system comprising:
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an implantable defibrillator including first sensing means for sensing electrical activity of the heart and generating first electrogram data representing a first electrogram, second sensing means for sensing electrical activity of the heart and generating second electrogram data representing a second electrogram, cardioverting means responsive to at least one of the first and second sensing means for applying the cardioverting electrical energy to the heart, and transmitting means for transmitting the first electrogram data with the second electrogram data as said first and second sensing means generate the first and second electrogram data respectively; and nonimplantable receiving means for receiving the first and second electrogram data and including display means responsive to the first and second electrogram data for simultaneously displaying the first and second electrograms as said first and second sensing means generate the first and second electrogram data to provide a continuous running simultaneous display of said first and second electrograms.
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Specification