Patent ID: 6230059
Filing Date: 2001-05-08
Classification: A61B,A61N

Abstract:
In an implantable medical device adapted to be implanted in a patient and operated to record electrical signals of the body for later retrieval and review to aid in diagnosing a condition of the patient, a method for recording such data that may be corrupted by ambient electrical noise comprising the steps of:sampling the electrical signals of interest and providing sample values;commanding the storage of a sequence of sample values in a storage register from which the sample values can be retrieved for review at a later time; andin response to the commanded storage, examining the sequence of sample values to determine if the sequence of sample values is corrupted with noise or is relatively noise free; andif the sequence of sample values is determined to be corrupted by noise, storing the sequence of sample values in a storage register designated as a noisy storage register to only receive a sequence of sample values determined to be corrupted by noise; orif the sequence of sample values is determined to be relatively noise free, storing the sequence of sample values in a storage register designated as a relatively noise free storage register to only receive sample values determined to be relatively noise free.