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System and method for controlling charging energy delivered to an implantable medical device

  • US 9,270,137 B2
  • Filed: 02/07/2014
  • Issued: 02/23/2016
  • Est. Priority Date: 02/07/2014
  • Status: Active Grant
First Claim
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1. A charging energy control system comprising:

  • an implantable medical device (IMD) including a battery, wherein the IMD is configured to receive charging energy to recharge the battery during a charging energy acceptance period, and reject the charging energy during an actual charging energy rejection period; and

    an external charger configured to transmit the charging energy to the IMD in order to recharge the battery, wherein the external charger includes a charging controller configured to;

    i) determine the actual charging energy rejection period,ii) regulate the charging energy during a charging energy regulation period in which the charging controller predicts a predicted charging energy rejection period of the IMD based on the actual charging energy rejection period, andiii) cease or reduce transmission of the charging energy during a charging energy conservation period that is at least a portion of the predicted charging energy rejection period.

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