Rafael Carbunaru,Jordi Parramon,Robert Ozawa,Jess Shi,Joey Chen,Md. Mizanur Rahman
申请号：
US14216956
公开号：
US09339659B2
申请日:
2014.03.17
申请国别(地区):
US
年份:
2016
代理人:
摘要：
An external charger for a battery in an implantable medical device (implant), and technique for charging batteries in multiple implants using such improved external charger, is disclosed. During charging, values for a parameter measured in the implants are reported from the implants to the external charger. The external charger infers from the magnitudes of the parameters which of the implants has the highest (hot) and lowest (cold) coupling to the external charger. The intensity of the magnetic charging field is optimized for the cold implant to ensure that it is charged with a maximum (fastest) battery charging current. The duty cycle of the magnetic charging field is also optimized for the hot implant to ensure that it does not exceed a power dissipation limit. As a result, charging is optimized to be fast for all of the implants, while still safe from a tissue heating perspective.
