Command atrial cardioverter
First Claim
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1. A cardioverting device comprising:
- detecting means for issuing an electrical signal representing the actual ECG activity of the heart of a wearer of the device;
storage means for storing energy to convert an abnormal cardiac rhythm to normal sinus rhythm;
delivery electrode means for discharging the stored energy into the heart of the wearer;
switch means for controlling the discharge of the stored energy into the heart of the wearer;
charging means for delivering to said storage means said energy to convert the abnormal cardiac rhythm;
first monitoring means for monitoring the operation of said storage means and issuing a first signal when said storage means has stored a predetermined amount of energy;
second monitoring means for monitoring the ECG signal produced by said detecting means and for detecting a preselected repeatable characteristic of the ECG signal, said monitoring means further including means for issuing a second signal each time said second monitoring means detects said preselected repeatable characteristic of the ECG signal;
third monitoring means for monitoring the ECG signal produced by said detecting means for activating said charging means in the presence of abnormal cardiac rhythm in need of correction; and
actuating means connected to said first and second monitoring means and requiring the simultaneous presence of said first and second signals at the time the stored energy is to be delivered to the heart of the wearer, said actuating means for actuating said switching means.
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Abstract
An externally controlled implantable electronic device for delivering a cardioverting pulse of energy to an ailing heart. A defibrillator produces a first signal when its storage device is fully charged and ready to be discharged, and a second signal when a predetermined characteristic of an ECG signal is detected. An actuator is provided for determining the presence of both of these signals. If during a predetermined time period, there is a simultaneous occurrence of the first and second signals, then the defibrillator will be activated to deliver the cardioverting shock to the heart. In the absence of either of the two signals, the defibrillator will not deliver a shock.
118 Citations
14 Claims
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1. A cardioverting device comprising:
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detecting means for issuing an electrical signal representing the actual ECG activity of the heart of a wearer of the device; storage means for storing energy to convert an abnormal cardiac rhythm to normal sinus rhythm; delivery electrode means for discharging the stored energy into the heart of the wearer; switch means for controlling the discharge of the stored energy into the heart of the wearer; charging means for delivering to said storage means said energy to convert the abnormal cardiac rhythm; first monitoring means for monitoring the operation of said storage means and issuing a first signal when said storage means has stored a predetermined amount of energy; second monitoring means for monitoring the ECG signal produced by said detecting means and for detecting a preselected repeatable characteristic of the ECG signal, said monitoring means further including means for issuing a second signal each time said second monitoring means detects said preselected repeatable characteristic of the ECG signal; third monitoring means for monitoring the ECG signal produced by said detecting means for activating said charging means in the presence of abnormal cardiac rhythm in need of correction; and actuating means connected to said first and second monitoring means and requiring the simultaneous presence of said first and second signals at the time the stored energy is to be delivered to the heart of the wearer, said actuating means for actuating said switching means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification