Implantable vagal stimulator for treating cardiac ischemia
First Claim
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1. A method for treating cardiac ischemia, comprising:
- configuring an implantable device to monitor for an indication that an episode of cardiac ischemia is occurring, wherein such indication of cardiac ischemia includes changes in cardiac electrical activity;
configuring the implantable device with a magnetically or tactilely actuated switch;
configuring the implantable device to deliver electrical stimulation to the vagus nerve upon obtaining an indication of cardiac ischemia and upon actuation of the magnetically or tactilely actuated switch;
configuring the implantable device to inhibit delivery of electrical stimulation to the vagus nerve unless both an indication of cardiac ischemia is obtained and the magnetically or tactilely actuated switch is actuated;
configuring the implantable device to cease delivery of the electrical stimulation to the vagus nerve after a predetermined length of time; and
,configuring the implantable device to cease delivery of the electrical stimulation to the vagus nerve upon actuation of the magnetically or tactilely actuated switch.
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Abstract
A device and method for treating cardiac ischemia with vagal stimulation is disclosed. In one embodiment, an implantable device is configured to deliver vagal stimulation upon obtaining an indication of cardiac ischemia by analysis of a recorded electrogram.
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Citations
16 Claims
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1. A method for treating cardiac ischemia, comprising:
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configuring an implantable device to monitor for an indication that an episode of cardiac ischemia is occurring, wherein such indication of cardiac ischemia includes changes in cardiac electrical activity; configuring the implantable device with a magnetically or tactilely actuated switch; configuring the implantable device to deliver electrical stimulation to the vagus nerve upon obtaining an indication of cardiac ischemia and upon actuation of the magnetically or tactilely actuated switch; configuring the implantable device to inhibit delivery of electrical stimulation to the vagus nerve unless both an indication of cardiac ischemia is obtained and the magnetically or tactilely actuated switch is actuated; configuring the implantable device to cease delivery of the electrical stimulation to the vagus nerve after a predetermined length of time; and
,configuring the implantable device to cease delivery of the electrical stimulation to the vagus nerve upon actuation of the magnetically or tactilely actuated switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable cardiac device, comprising:
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one or more sensing channels for sensing cardiac activity; a neural stimulation channel for delivering vagal stimulation; a controller programmed to record an electrogram from the sensing channel and analyze the recorded electrogram; wherein the controller is programmed to obtain an indication of cardiac ischemia if a change indicative of cardiac ischemia is detected in the recorded electrogram; a magnetically or tactilely actuated switch; wherein the controller is programmed to delivery vagal stimulation upon obtaining an indication of cardiac ischemia and actuation of the magnetically or tactilely actuated switch; wherein the controller is programmed to inhibit delivery of electrical stimulation to the vagus nerve unless both an indication of cardiac ischemia is obtained and the magnetically or tactilely actuated switch is actuated; wherein the controller is programmed to cease delivery of the vagal stimulation after a predetermined length of time; and
,wherein the controller is programmed to cease delivery of the vagal stimulation upon actuation of the magnetically or tactilely actuated switch. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification