Implantable medical device having a controlled diagnostic function
First Claim
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1. A system comprising:
- an implantable medical device comprising;
a therapy circuit;
a communication circuit configured to communicate information from the implantable medical device to an external patient management system;
a physiological sensing circuit;
a first mode, activated at implant, in which power to at least a portion of the physiological sensing circuit is repeatedly turned on and off successively in a power-saving duty cycle, and in which the therapy circuit and the communications circuit are powered off; and
a second mode, triggered by the physiological sensing circuit having detected a physiological event when on during the first mode, the second mode configured to override the first mode by permanently activating the therapy circuit, without regard to sensing, the therapy circuit configured to permanently provide ongoing therapy after being permanently activated by the second mode, and the second mode configured to activate the communication circuit.
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Abstract
Methods and systems for providing an implantable medical device with a controlled diagnostic function adapted to convert from a monitoring mode to a therapeutic mode upon sensing an actionable cardiovascular event are disclosed. A preferred embodiment uses an interactive control module to selectively control a plurality of gated circuits that turn the sensing, therapeutic and communications functions of the device on and off to conserve battery power and extend the life of the device. Some embodiments of a system disclosed herein also can be configured as a component of an Advanced Patient Management System that helps better monitor, predict and manage chronic diseases.
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Citations
19 Claims
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1. A system comprising:
an implantable medical device comprising; a therapy circuit; a communication circuit configured to communicate information from the implantable medical device to an external patient management system; a physiological sensing circuit; a first mode, activated at implant, in which power to at least a portion of the physiological sensing circuit is repeatedly turned on and off successively in a power-saving duty cycle, and in which the therapy circuit and the communications circuit are powered off; and a second mode, triggered by the physiological sensing circuit having detected a physiological event when on during the first mode, the second mode configured to override the first mode by permanently activating the therapy circuit, without regard to sensing, the therapy circuit configured to permanently provide ongoing therapy after being permanently activated by the second mode, and the second mode configured to activate the communication circuit. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9)
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5. The system of 1, in which the therapy circuit includes an electrical stimulus control circuit.
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10. A method comprising:
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placing an implantable medical device in a first mode that is activated at implant, in which power to at least a portion of a physiological sensing circuit is repeatedly turned on and off successively in a power-saving duty cycle, and in which a therapy circuit and a communication circuit are powered off; detecting a physiological event, using the physiological sensing circuit, while the implantable medical device is operating in the first mode; and triggering, in response to the detecting of the physiological event, a second mode that overrides the first mode by permanently powering the therapy circuit, without regard to sensing, to permanently provide ongoing therapy after being permanently activated by the second mode, and activating the communication circuit. - View Dependent Claims (11, 13, 14, 15, 16, 17, 18, 19)
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12. The method of 10, in which the powering on includes powering on an electrical stimulus control circuit.
Specification