Paced QRS complex classifier
First Claim
1. An apparatus for classifying the type of pacing of QRS complexes in an ECG wave signal of a paced patient comprising,statistical means for detecting the times of occurrence of said QRS complexes in said ECG wave signal,means for detecting the times of occurrence of pace pulses in said ECG wave signal,means coupled to both of said means for determining the value of the time interval between each detected pace pulse and the next detected QRS complex to thereby provide at least one time interval value associated therewith,means for assigning said detected QRS complexes to respective groups in accordance with their shape,clustering means coupled to said last two means for detecting the existence of at least one cluster of time interval values occurring during a given number of most recent assigned QRS complexes of each group,means for deriving a representative interval value for each said cluster, andmeans for classifying a current QRS complex including means for comparing said at least one time interval value associated with it and the representative interval value or values for the at least one cluster of the group to which it has been assigned.
5 Assignments
0 Petitions
Accused Products
Abstract
Apparatus for classifying QRS complexes as dual chamber paced, atrially paced or ventricularly paced by assigning complexes to groups in accordance with shape, deriving the intervals between pace pulses and their respective QRS complexes, determining if the intervals for a given number of recent complexes from the group to which the current QRS complex is assigned are clustered, and classifying the current QRS complex by the correlation between the intervals of its pace pulses and the intervals of said clusters.
-
Citations
7 Claims
-
1. An apparatus for classifying the type of pacing of QRS complexes in an ECG wave signal of a paced patient comprising,
statistical means for detecting the times of occurrence of said QRS complexes in said ECG wave signal, means for detecting the times of occurrence of pace pulses in said ECG wave signal, means coupled to both of said means for determining the value of the time interval between each detected pace pulse and the next detected QRS complex to thereby provide at least one time interval value associated therewith, means for assigning said detected QRS complexes to respective groups in accordance with their shape, clustering means coupled to said last two means for detecting the existence of at least one cluster of time interval values occurring during a given number of most recent assigned QRS complexes of each group, means for deriving a representative interval value for each said cluster, and means for classifying a current QRS complex including means for comparing said at least one time interval value associated with it and the representative interval value or values for the at least one cluster of the group to which it has been assigned.
Specification