Patent ID: 11888325
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC H  A | IPC A  H

Claim 20:
21. An external charger for an implantable medical device, the implantable medical device having a secondary coil in a patient, the external charger comprising:
a housing forming an internal compartment;
electronic components disposed on a printed circuit board assembly disposed within the internal compartment; and
a recharge coil assembly disposed within the internal compartment, the recharge coil assembly including:
a recharge coil configured to output power to the secondary coil via inductive power transfer wherein the recharge coil is planar; and
a planar flux guide having a planar flexible ferrite sheet, the ferrite sheet located between the recharge coil and the printed circuit board assembly and the ferrite sheet is disposed alongside the recharge coil.