Patent ID: 8706202
Filing Date: 2014-04-22
Classification: A61B,A61N,G06K

Abstract:
1. A medical device, comprising: a sensor for sensing an n-dimensional signal during a first time interval of a first known variable condition that influences the n-dimensional signal and during a second time interval of a second known variable condition that influences the n-dimensional signal different from the first known variable condition; a processor configured to perform principal component analysis (PCA) on the sensed n-dimensional signal to generate a first template of a principal component of variation for the first known variable condition and a second template of a principal component of variation for the second known variable condition; a storage device storing the first template and the second template; and a controller configured to receive the n-dimensional signal during an unknown condition and detect a patient condition using the n-dimensional signal that is sensed during the unknown condition and at least one of the stored templates.