Patent ID: 7242981

Claim:
A method for operating a system for controlling an implantable drug delivery device susceptible to malfunctioning during exposure to at least one of a magnetic field or a Radio Frequency field, the method comprising the steps of: detecting exposure of the implantable device to the at least one of the magnetic field or the Radio Frequency field using a sensing device; when the at least one field being detected exceeds a corresponding predetermined threshold level, generating an input signal at a microcontroller; automatically triggering, in response to the generated input signal, a safety mode enabling a predetermined safety mode operation that comprises: (i) duplicating all data, (ii) saving all data to a memory, (iii) short circuiting a transmitter/receiver of the implantable drug delivery device, (iv) reverting to a default operation of the implantable drug delivery device stored in a non-volatile memory at the time of implantation, (v) calculating memory checksums to be verified during the self testing mode, (vi) store data detected by the sensing device, and (vii) ceasing delivery of drugs.