Patent ID: 7050855

Claim:
An implantable medical system, comprising; an operational control subsystem for controlling a therapy delivery component of the implantable medical system, wherein the therapy delivery component includes at least one therapy delivery lead; a magnetic sensor to measure a magnetic field surrounding the environment in which the system is located and provide a magnetic field strength value indicative of the magnitude of the magnetic field; at least one circuit coupled to the operational control subsystem and the magnetic sensor to receive the magnetic field strength value and compare the magnetic field strength value to a threshold value and output a control signal to the operational control system if the magnetic field strength value exceeds the threshold, wherein the threshold value is a predetermined value above which the environmental magnetic field is capable of adversely interfering with normal operation of the therapy delivery lead; and an adjustment component communicatively coupled with the operational control system, wherein the adjustment component controls a portion of the therapy delivery component if the operational control system receives the control signal.