METHOD AND APPARATUS FOR SELECTING ACTIVITY RESPONSE VECTOR

摘要

A medical device and associated method evaluate vectors of a multi-dimensional accelerometer by receiving a signal from the accelerometer for each of the vectors and determining a metric from the signal for each of the vectors during a first sensing condition and during a second sensing condition. The difference between the metrics determined for the first sensing condition and the second sensing condition for each of the vectors is determined. One of the vectors is selected, based upon the determined differences, for monitoring the patient.

主权项

1. A method of evaluating vectors of an implantable multi-dimensional accelerometer for monitoring a patient, comprising:
receiving a signal from the accelerometer for each of the plurality of vectors; determining a metric from the signal for each of the plurality of vectors during a first sensing condition; determining the metric from the signal for each of the plurality of vectors during a second sensing condition; determining a difference between the metrics determined for the first sensing condition and the second sensing condition for each of the plurality of vectors; and selecting, based upon the determined differences, one of the plurality of vectors for monitoring the patient.