Method for calculating and analyzing heart rhythm

• US 20080108906A1
• Filed: 11/08/2006
• Published: 05/08/2008
• Est. Priority Date: 11/08/2006
• Status: Abandoned Application

• Current Assignee: Ostar Meditech, Corp.
• Original Assignee: Ostar Meditech, Corp.
• Inventors: Chang, Kuo-Yuan
• Application Number:
  US11/594,202
• Publication Number:
  US 20080108906A1
• Time in Patent Office: Days
• US Class Current: 600/515
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods
• CPC Class Codes: A61B 5/347 Detecting the frequency distribution of signals
• CPC Class Codes: A61B 5/7257 using Fourier transforms

Abstract

A method for calculating the heart rhythm includes: measuring a plurality of electrical heartbeat signals; evaluating the electrical heartbeat signals on the basis of a Fourier transformation to calculate a frequency spectrum of the electrical heartbeat signals, wherein at least a characteristic frequency presents within a frequency range of the frequency spectrum; and utilizing the characteristic frequency to get the heart rhythm. The method for analyzing the heart rhythm is to judge the number of the characteristic frequency within the frequency range to decide the frequency number of the heart rhythm.

Claims

1. A method for calculating heart rhythm, comprising:

measuring a plurality of electrical heartbeat signals;

evaluating said electrical heartbeat signals on the basis of a Fourier transformation to calculate a frequency spectrum of said electrical heartbeat signals, wherein at least a characteristic frequency presents within a frequency range of said frequency spectrum; and

utilizing said characteristic frequency to get said heart rhythm.

2. The method for calculating heart rhythm according to claim 1, wherein only a principal characteristic frequency presents within said frequency range, and said principal characteristic frequency corresponds to said heart rhythm.

3. The method for calculating heart rhythm according to claim 1, wherein there are a principal characteristic frequency and other characteristic frequencies within said frequency range, and said principal characteristic frequency corresponds to said heart rhythm.

4. The method for calculating heart rhythm according to claim 1, wherein said electrical heartbeat signals are measured by infrared signals, thermal radiation signals, sound signals, current signals, voltage signals, magnetic induction signals or pressure signals.

5. The method for calculating heart rhythm according to claim 1, wherein said electrical heartbeat signals are measured by a heart monitor or a physiological monitoring apparatus.

6. A method for analyzing heart rhythm, comprising:

measuring a plurality of electrical heartbeat signals;

evaluating said electrical heartbeat signals on the basis of a Fourier transformation to calculate a frequency spectrum of said electrical heartbeat signals; and

judging a number of a characteristic frequency within a frequency range of said frequency spectrum to decide a frequency number of said heart rhythm.

7. The method for analyzing heart rhythm according to claim 6, wherein said frequency range is from zero to a 1.5 times of a heartbeat number per minute.

8. The method for analyzing heart rhythm according to claim 6, wherein a principal characteristic frequency is within said frequency spectrum, and said frequency range is in the range from 0.84 times of said principal characteristic frequency to 1.16 times of said principal characteristic frequency.

9. The method for analyzing heart rhythm according to claim 7 or claim 8, wherein if only single said characteristic frequency presents within said frequency range, said heart rhythm has one frequency.

10. The method for analyzing heart rhythm according to claim 7 or claim 8, wherein if more than one said characteristic frequency presents within said frequency range, said heart rhythm has more than one frequency.

11. The method for analyzing heart rhythm according to claim 6, wherein said electrical heartbeat signals are measured by infrared signals, thermal radiation signals, sound signals, current signals, voltage signals, magnetic induction signals or pressure signals.

12. The method for analyzing heart rhythm according to claim 6, wherein said electrical heartbeat signals are measured by a heart monitor or a physiological monitoring apparatus.

13. A method for analyzing heart rhythm, comprising:

measuring a plurality of electrical heartbeat signals;

evaluating said electrical heartbeat signals on the basis of a Fourier transformation to calculate a frequency spectrum of said electrical heartbeat signals; and

counting a number of a characteristic frequency within a frequency range of said frequency spectrum to judge whether said heart rhythm is under a condition of arrhythmia.

14. The method for analyzing heart rhythm according to claim 13, wherein said frequency range is from zero to a 1.5 times of a heartbeat number per minute.

15. The method for analyzing heart rhythm according to claim 13, wherein there is a principal characteristic frequency within said frequency spectrum, and said frequency range is in the range from 0.84 times of said principal characteristic frequency to 1.16 times of said principal characteristic frequency.

16. The method for analyzing heart rhythm according to claim 14 or claim 15, wherein if only single said characteristic frequency presents within said frequency range, said heart rhythm is under a normal condition.

17. The method for analyzing heart rhythm according to claim 14 or claim 15, wherein if more than one said characteristic frequency presents within said frequency range, said heart rhythm is under a condition of arrhythmia.

18. The method for analyzing heart rhythm according to claim 13, wherein said electrical heartbeat signals are measured by infrared signals, thermal radiation signals, sound signals, current signals, voltage signals, magnetic induction signals or pressure signals.

19. The method for analyzing heart rhythm according to claim 13, wherein said electrical heartbeat signals are measured by a heart monitor or a physiological monitoring apparatus.