An automatic, body-implantable medical device having at least two modes of operation is disclosed. The device is provided with circuitry for automatically detecting when the device has been implanted in a patient, so that the device can automatically switch from a first mode to a second mode of operation...http://www.google.fr/patents/US6016448?utm_source=gb-gplus-shareBrevet US6016448 - Multilevel ERI for implantable medical devices
