Dynamic battery management in an implantable device

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.

1 . An implantable system, comprising:
 an electrode;   an implantable medical device configured to be electrically connected to he electrode, the implantable medical device including:
 a battery; 
 a plurality of capacity measuring devices, each of the plurality of capacity measuring devices configured to calculate capacity consumed for the battery; and 
 a controller configured to control the provision of electrical stimulation therapy using the electrode, and further configured to capacity-blend calculations from the plurality of capacity measuring devices using a weighted formula for capacity consumed based on a programmable percentage of life phase of the battery. 
   
     
     
         2 . The system of  claim 1 , wherein the implantable medical device includes a cardiac rhythm management (CRM) device. 
     
     
         3 . The system of  claim 1 , wherein the implantable medical device includes a pacemaker. 
     
     
         4 . The system of  claim 1 , wherein the implantable medical device includes a cardioverter. 
     
     
         5 . The system of  claim 1 , wherein the implantable medical device includes a defibrillator. 
     
     
         6 . The system of  claim 1 , wherein the implantable medical device includes a cardiac resynchronization therapy (CRT) device. 
     
     
         7 . The system of  claim 1 , wherein the implantable medical device includes a cardiac neurostimulator. 
     
     
         8 . The system of  claim 1 , wherein the implantable medical device includes a congestive heart failure device. 
     
     
         9 . The system of  claim 1 , wherein the implantable medical device includes a combination device configured to provide multiple therapy modalities. 
     
     
         10 . The system of  claim 1 , wherein the implantable medical device is configured for leadless therapy. 
     
     
         11 . The system of  claim 1 , further comprising a lead system configured to electrically contact strategic therapy targets of a patient. 
     
     
         12 . An implantable medical device, comprising:
 a battery;   a plurality of capacity measuring devices, each of the plurality of capacity measuring devices configured to calculate capacity consumed for the battery; and   a controller configured to provide electrical stimulation therapy using the device, and further configured to capacity-blend calculations from the plurality of capacity measuring devices using a weighted formula for capacity consumed, the weighted formula based on previous calculations of capacity consumed and a programmable percentage of life phase of the battery.   
     
     
         13 . The device of  claim 12 , wherein the implantable medical device includes a cardiac rhythm management (CRM) device. 
     
     
         14 . The device of  claim 12 , wherein the implantable medical device includes a pacemaker. 
     
     
         15 . The device of  claim 12 , wherein the implantable medical device includes a cardioverter. 
     
     
         16 . The device of  claim 12 , wherein the implantable medical vice includes a defibrillator. 
     
     
         17 . The device of  claim 12 , wherein the implantable medical device includes a cardiac resynchronization therapy (CRT) device. 
     
     
         18 . The device of  claim 12 , wherein the implantable medical device includes a neurostimulator. 
     
     
         19 . The device of  claim 12 , wherein the implantable medical device includes a congestive heart failure device. 
     
     
         20 . The device of  claim 12 , wherein the implantable medical device includes a combination device configured to provide multiple therapy modalities.