System and method for measuring and storing parametric data pertaining to operating characteristics of an implantable medical device
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United States of America Patent
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Apr 16, 1996
Grant Date -
N/A
app pub date -
Apr 14, 1994
filing date -
Apr 14, 1994
priority date (Note) -
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Abstract
A system and method for measuring and storing parametric data pertaining to the operating characteristics of an implantable medical device are provided. The parametric data may include the impedance of a lead that is attached to a patient's heart, and the internal impedance of a battery used to power the implantable medical device. The parametric data may be measured and stored at predetermined time intervals, as indicated by a clock provided within the implantable medical device. In addition, the parametric data measurements may be synchronized with the occurrence of a cardiac event, such as the application of a stimulation pulse to the patient's heart. A plurality of measurements for each type of parametric data may be stored, so that when the parametric data are later retrieved and displayed on an external programmer/analyzer, trends in the data can be readily observed.
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