公开(公告)号：US20220062516A1

公开(公告)日：2022-03-03

申请号：US17008752

申请日：2020-09-01

Applicant: Medtronic, Inc.

Inventor： David J. Peichel ,  Eric A. Schilling ,  Jonathan P. Roberts ,  Jacob A. Roe ,  Joel B. Artmann ,  Madeleine HENDERSON

IPC: A61M1/12 ,  H02J50/80 ,  H02J50/60 ,  H02J50/10

Abstract: A method of estimating power dissipated by a foreign metallic object in a transcutaneous energy transfer system (TETS) includes estimating power loss between an external coil of the TETS and an implanted coil of the TETS using a transfer function, the transfer function including inputs, the inputs including: a power supplied to the external coil, a power received by the implanted coil, a measured current within the external coil, and a carrier frequency between the external coil and the implanted coil and generating an alert if the estimated power loss between the external coil and the implanted coil exceeds a predetermined threshold.