Patent ID: 9308378
Filing Date: 2016-04-12
CPC Classification: A61N

Claim Text:
1. A method of charging an energy storage device of an implantable pulse generator using an external charger, the method comprising: wirelessly receiving at the external charger an identifier corresponding to the implantable pulse generator; wirelessly receiving at the external charger information from the implantable pulse generator corresponding to a first sensed electrical field strength; at the external charger, changing the strength of the electrical field; after changing the strength of the electrical field, wirelessly receiving at the external charger information from the implantable pulse generator corresponding to a second sensed electrical field strength; in response to the received information corresponding to the first and second sensed electrical fields, determining not to recharge the first implantable pulse generator based on the information corresponding to the first sensed electrical field; selecting a second implantable pulse generator based on a first sensed electrical field strength at the second implantable pulse generator and a second sensed electrical field strength at the second implantable pulse generator; and charging the second implantable pulse generator, wherein charging the second implantable pulse generator comprises changing the strength of the electrical field so that the electrical field is detectable by the second implantable pulse generator and is not detectable by the first implantable pulse generator.