Adaptive cardiac data patient filter system
First Claim
1. A system for adaptively processing patient monitoring signals, comprising:
- an input processor configured to acquire a signal having an amplitude representing electrical activity of a patient heart over time;
a signal processor configured to identify different portions of said signal, where each of the different portions is associated with a respective phase of cardiac activity, by;
inverting said signal to provide an inverted signal;
aligning said signal and said inverted signal based on their respective amplitudes during a cardiac rest portion; and
identifying one or more of the different portions of said signal based on one or more intersections point of said aligned signal and inverted signal; and
a plurality of adaptive signal filters, each of the plurality of adaptive signal filters configured to filter a respective plurality of bandwidths of a respective one of the different portions of said signal.
6 Assignments
0 Petitions
Accused Products
Abstract
A system for adaptively processing patient monitoring signals comprises an input processor for acquiring a signal having amplitude representing electrical activity of a patient heart over time. A signal processor identifies different portions of the signal associated with different phases of cardiac activity by, inverting the signal to provide an inverted signal, aligning the signal and the inverted signal in amplitude during a cardiac rest portion and identifying one or more of the different portions in response to an intersection point of the signal and the inverted signal. Multiple adaptive signal filters are used to filter multiple bandwidths of corresponding different portions of the signal.
-
Citations
14 Claims
-
1. A system for adaptively processing patient monitoring signals, comprising:
-
an input processor configured to acquire a signal having an amplitude representing electrical activity of a patient heart over time; a signal processor configured to identify different portions of said signal, where each of the different portions is associated with a respective phase of cardiac activity, by; inverting said signal to provide an inverted signal; aligning said signal and said inverted signal based on their respective amplitudes during a cardiac rest portion; and identifying one or more of the different portions of said signal based on one or more intersections point of said aligned signal and inverted signal; and a plurality of adaptive signal filters, each of the plurality of adaptive signal filters configured to filter a respective plurality of bandwidths of a respective one of the different portions of said signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for adaptively processing patient monitoring signals, comprising:
-
acquiring a signal having an amplitude representing electrical activity of a patient heart over time; identifying different portions of said signal, where each of the different portions is associated with a different respective phase of cardiac activity, by; inverting said signal to provide an inverted signal; aligning said signal and said inverted signal based on their respective amplitudes during a cardiac rest portion; and identifying one or more of the different portions of said signal based on one or more intersections point of said aligned signal and inverted signal; and filtering a respective plurality of bandwidths of each different portion of said signal using a respective adaptive signal filter for each different portion. - View Dependent Claims (13, 14)
-
Specification