Operating method for an implantable cardiologic device, in particular a heart pacemaker
First Claim
1. An operating method for an implantable cardiologic device, for detection of a significant event or condition to which a patient is subject, comprising:
- measuring intracardiac impedance;
detecting a morphologic signal course of the intracardiac impedance, based on at least one morphologically representative parameter of the signal course;
continuously storing said parameter from a defined measuring period;
computing a correlation coefficient for said stored parameter; and
comparing the correlation coefficient with a reference correlation coefficient, with transgression of a defined deviation of the correlation coefficient from the reference correlation coefficient indicating a presence of at least one of said significant event and condition.
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Abstract
An operating method for an implantable cardiologic device comprises the following steps for detection of a significant event or condition a patient is subject to:
measurement of intracardiac impedance;
detection of the morphologic signal course of the impedance, based on at least two morphologically representative parameters of the signal course;
continuous storage of the parameter data from a defined measuring period;
computation of a correlation coefficient for the stored parameter data; and
comparison of the correlation coefficient with a reference correlation coefficient, with transgression of a defined deviation of the correlation coefficient from the reference correlation coefficient indicating the presence of a significant event.
8 Citations
14 Claims
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1. An operating method for an implantable cardiologic device, for detection of a significant event or condition to which a patient is subject, comprising:
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measuring intracardiac impedance;
detecting a morphologic signal course of the intracardiac impedance, based on at least one morphologically representative parameter of the signal course;
continuously storing said parameter from a defined measuring period;
computing a correlation coefficient for said stored parameter; and
comparing the correlation coefficient with a reference correlation coefficient, with transgression of a defined deviation of the correlation coefficient from the reference correlation coefficient indicating a presence of at least one of said significant event and condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification