Adaptive cardiac data patient filter system

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.

2. A system according to claim 1 , wherein

said different portions comprise at least two of P wave, QRS wave and T wave portions of said signal.

3. A system according to claim 2 , wherein

said different portions comprise at least one of, S wave and U wave portions of said signal.

4. A system according to claim 1 , wherein

said signal processor,

identifies said cardiac rest portion as comprising between a U wave and a P wave and

aligns said signal and said inverted signal based on their respective amplitudes by at least one of, (a) applying a DC offset to a signal and (b) voltage clamping a signal.

5. A system according to claim 1 , wherein

said plurality of adaptive signal filters are at least one of, (a) digital and (b) analog, filters.

6. A system according to claim 1 , including

a signal reconstruction processor for providing a reconstructed signal by combining the filtered different portions of said signal.

7. A system according to claim 6 , wherein

said signal reconstruction processor provides the reconstructed signal by summing the filtered different portions of said signal.

8. A system according to claim 7 , wherein

said signal reconstruction processor provides said reconstructed signal by performing a weighted summation of the filtered different portions of said signal.

9. A system according to claim 1 , wherein

each of said plurality of adaptive signal filters is associated with a respective filtering characteristic programmable in response to received programming data.

10. A system according to claim 9 , wherein

said programming data is derived in response to data indicating a type of medical procedure being performed.

11. A system according to claim 9 , wherein

the programmable filtering characteristic of said plurality of adaptive signal filters determines whether the filter is at least one of, (a) a low pass filter, (b) a high pass filter and (c) a bandpass filter.

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.

13. A method according to claim 12 , further comprising:

generating a reconstructed signal by combining the filtered different portions of said signal.

14. A method according to claim 12 , wherein

each of the adaptive signal filters is associated with a respective filtering characteristic programmable in response to received programming data.