Patent ID: 8521254

Claim:
An implantable medical device comprising: at least one vibration transducer; a detector configured to detect magnetic resonance tomography activity comprising said at least one vibration transducer; a digital signal processor; wherein said at least one vibration transducer is configured to transform vibrations and oscillations created by a magnetic resonance tomography device into one or more of an electrical and optical signal; wherein the at least one vibration transducer comprises one or more of a microphone and at least one acceleration sensor; wherein said detector configured to detect magnetic resonance tomography activity is further configured to recognize magnetic tomography based on one or more of said electrical and said optical signal; wherein said digital signal processor is configured to use autocorrelation such that the observed magnetic resonance tomography noises are filtered and subsequently associated with typical sequences of magnetic resonance tomography; and wherein the at least one vibration transducer, via Lorentz force, is further configured to vibrate when a magnetic field with a predeterminable minimum field strength is present simultaneously with eddy currents that are induced by alternating magnetic fields.