Detection of strong static magnetic fields and MRI examination safekeeping for an implantable cardiac prosthesis

摘要

An active implantable medical device for one of cardiac stimulation, resynchronization, and defibrillation is shown and described. The device includes means for placing an electronic circuit in a safekeeping operating mode in response to detecting a first magnetic field associated with a permanent magnet and detecting a second magnetic field associated with an MRI imager.