Patent ID: 7447544

Claim:
An implantable medical device comprising: a device operative to monitor cardiac rhythm; an implantable housing having therein a temporary memory operative to record diagnostic data corresponding to the cardiac rhythm; and a long-term memory interfacing with the temporary memory and operative to record diagnostic data stored in the temporary memory; and a processor operative to: evaluate the cardiac rhythm for the detection of predetermined recording triggers indicative of an impending cardiac arrhythmia, wherein the cardiac arrhythmia indicated as impending, is not currently present; control the recording of diagnostic data such that no data is recorded in the temporary memory until the detection of an impending cardiac arrhythmia, wherein the cardiac arrhythmia indicated as impending, is not currently present and no data is transferred from the temporary memory and recorded in the long-term memory until it has been determined that a cardiac arrhythmia did actually occur; and adaptively modify the recording triggers so as to reduce the likelihood of any unnecessary recording of diagnostic data in the temporary memory.