Method and apparatus for preventing excessive power drain from an implantable device
First Claim
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1. A system for controlling interrogation of an implantable device utilizing an external device, the system comprising:
- said implantable device;
a module, in the implantable device, adapted to receive a current request for information to be retrieved from the implantable device;
a monitoring module, in the implantable device, adapted to record a temporal history of previous interrogations of the implantable device, to compare the temporal history of previous interrogations with the current request for information, and to decide whether to allow the interrogation process to proceed based on the comparison; and
a telemetry unit adapted to establish a wireless communication link with the external device;
wherein the monitoring module is adapted to prevent the interrogation process from proceeding when a period of time elapsed since a last request for the information is shorter than a threshold period of time.
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Abstract
A method and apparatus are provided for controlling interrogation of an implantable device such as a pacemaker, an implantable cardioverter, or a defibrillator utilizing an external device in a home environment. The method controls how frequently a patient can retrieve status information from the implantable device based on a time period elapsed since a last interrogation and a power level of a battery.
34 Citations
14 Claims
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1. A system for controlling interrogation of an implantable device utilizing an external device, the system comprising:
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said implantable device; a module, in the implantable device, adapted to receive a current request for information to be retrieved from the implantable device; a monitoring module, in the implantable device, adapted to record a temporal history of previous interrogations of the implantable device, to compare the temporal history of previous interrogations with the current request for information, and to decide whether to allow the interrogation process to proceed based on the comparison; and a telemetry unit adapted to establish a wireless communication link with the external device; wherein the monitoring module is adapted to prevent the interrogation process from proceeding when a period of time elapsed since a last request for the information is shorter than a threshold period of time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system controlling interrogation of an implantable device utilizing an external device, the system comprising:
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said implantable device; a module, in the implantable device, adapted to receive a current request for information to be retrieved from the implantable device; a monitoring module, in the implantable device, adapted to record a temporal history of previous interrogations of the implantable device, to compare the temporal history of previous interrogations with the current request for information, and to decide whether to allow the interrogation process to proceed based on the comparison; and a telemetry unit adapted to establish a wireless communication link with the external device; wherein the monitoring module, in the implantable device, is further adapted to check the battery condition including the power level of the battery; and wherein the monitoring module, in the implantable device, dynamically updates the threshold period of time to a new value based on said power level of a battery within the implantable device, the threshold period of time used in comparison of the temporal history of previous interrogations with the current request for information.
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8. A method for controlling interrogation of an implantable device utilizing an external device, the method comprising:
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receiving a current request for information, at the implantable device, to be retrieved from an implantable device; determining, by the implantable device, a temporal history of previous interrogations of the implantable device; comparing, by the implantable device, the temporal history of previous interrogations with the current request for information and with a threshold period of time that is to elapse before accepting a new request for information; allowing the interrogation process to proceed based on the comparing; transmitting information from the implantable device to the external device; checking and recording a battery condition; and as the battery condition decreases, extending, at the implantable device, the threshold period of time that is to elapse before accepting a new request for information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification