DYNAMIC BATTERY MANAGEMENT IN AN IMPLANTABLE DEVICE
First Claim
1. An implantable medical device, comprising:
- a battery;
a first capacity measuring device configured to calculate battery capacity consumed during a first time period of capacity consumption for the battery;
a second capacity measuring device configured to calculate battery capacity consumed during a third time period of capacity consumption for the battery; and
a controller connected to the measuring devices, the controller configured to combine the calculations from the first and second devices to determine battery capacity consumed during a second time period of capacity consumption for the battery, wherein the first time period ends at the beginning of the second time period, and the third time period begins at the end of the second time period.
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Abstract
One aspect of this disclosure relates to a system for dynamic battery management in implantable medical devices. An embodiment of the system includes two or more devices for measuring battery capacity for an implantable medical device battery. The embodiment also includes a controller connected to the measuring devices. The controller is adapted to combine the measurements from the measuring devices using a weighted average to determine battery capacity consumed. According to various embodiments, at least one of the measuring devices includes a coulometer. At least one of the measuring devices includes a capacity-by-voltage device, according to an embodiment. The system further includes a display in communication with the controller in various embodiments. The display is adapted to provide a depiction of battery longevity in units of time remaining in the life of the implantable medical device battery, according to various embodiments. Other aspects and embodiments are provided herein.
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Citations
20 Claims
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1. An implantable medical device, comprising:
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a battery; a first capacity measuring device configured to calculate battery capacity consumed during a first time period of capacity consumption for the battery; a second capacity measuring device configured to calculate battery capacity consumed during a third time period of capacity consumption for the battery; and a controller connected to the measuring devices, the controller configured to combine the calculations from the first and second devices to determine battery capacity consumed during a second time period of capacity consumption for the battery, wherein the first time period ends at the beginning of the second time period, and the third time period begins at the end of the second time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable medical device, comprising:
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a battery; a coulometer configured to calculate battery capacity consumed during a first time period of capacity consumption for the battery; a capacity-by-voltage device configured to calculate battery capacity consumed during a third time period of capacity consumption for the battery; and a controller connected to the coulometer and the capacity-by-voltage device, the controller configured to determine a weighted average of the calculations from the coulometer and the capacity-by-voltage device to determine battery capacity consumed during a second time period of capacity consumption for the battery, wherein the first time period begins at the beginning of life of the battery and ends at the beginning of the second time period, and the third time period begins at the end of the second time period. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification