Monitoring Physiological Condition and Detecting Abnormalities

• US 20110130671A1
• Filed: 11/30/2010
• Published: 06/02/2011
• Est. Priority Date: 02/08/2007
• Status: Active Grant

• Current Assignee: Heart Force Medical, Inc.
• Original Assignee: Heart Force Medical, Inc.
• Inventors: Kaminska, Bozena, MacQuarrie, David
• Granted Patent: US 8,255,042 B2
• Time in Patent Office: Days
• US Class Current: 600/513
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/1102 Ballistocardiography
• CPC Class Codes: A61B 5/349 Detecting specific parameters of the electrocardiograph cycle

Abstract

A system for monitoring an individual'"'"'s physiological condition and detecting abnormalities therein, comprising concurrently receiving at least first signal and a second signal. The first and second signals are conditioned to minimize background extraneous noise after which, each signal is concurrently processed and analyzed to detect repeating cyclical patterns and further characterized to identify individual components of the repeating cycles. At least one individual component in one signal is selected as a reference marker for a selected component in the other signal. The two signals are then synchronized, outputs produced therefrom and stored in a database. The system is provided with a plurality of devices for acquiring, transmitting and conditioning at least two physiological signals, a software program cooperable with a microprocessor configured for receiving said transmitted signals and conditioned signals, and processing said signals to characterize and synchronize said signals and provide signal outputs derived therefrom, a database for storing said transmitted signals, conditioned signals, synchronized signals, and output signals derived therefrom. The output signals are useful for reporting and optionally for retransmission to the individual'"'"'s body and providing physiologically stimulatory signals thereto.

Claims

1. A system for monitoring an individual'"'"'s physiological condition comprising:

a first device for coupling to said individual, said first device for detecting and transmitting an electrocardiograph signal of said individual;

a second device for coupling to said individual, said second device for detecting and transmitting a ballistocardiograph signal of said individual;

a computer including a microprocessor in communication with said first device and said second device, said computer for receiving said electrocardiograph signal and said ballistocardiograph signal, converting said electrocardiograph signal into electrocardiograph data, converting said ballistocardiograph signal into ballistocardiograph data and synchronizing said electrocardiograph data with said ballistocardiograph data, said computer generating an output indicative of said individual'"'"'s physiological condition.

2. The system according to claim 1, wherein said electrocardiograph signal and said ballistocardiograph signal are converted by an analog-digital converter.

3. The system according to claim 1, wherein said first device comprises an electrocardiograph.

4. The system according to claim 1, wherein said second device comprises an accelerometer.

5. The system according to claim 4, wherein the accelerometer is configured to be positioned on the sternum of said individual.

6. The system according to claim 1, wherein said computer includes a database in communication with said microprocessor, said database for storing said electrocardiograph data and said ballistocardiograph data,

7. The system according to claim 1, wherein synchronizing said electrocardiograph data with said ballistocardiograph data includes aligning an R peak of an electrocardiograph waveform corresponding to said electrocardiograph data with an H peak of a ballistocardiograph waveform corresponding to said ballistocardiograph data.

8. The system according to claim 1, wherein said output is provided on a device selected from he group consisting of monitors, screens, printers and plotters.

9. The system according to claim 1, wherein said output comprises a synchronized electrocardiograph-ballistocardiograph waveform.

10. The system according to claim 6, wherein said output comprises a comparison of said electrocardiograph data and said ballistocardiograph data of said individual with reference electrocardiograph and ballistocardiograph wave pattern data, said reference electrocardiograph and ballistocardiograph wave pattern data being stored in said database.

11. The system according to claim 1, wherein said output comprises a comparison of at least one resting-stage electrocardiograph-ballistocardiograph signal set and at least one post-exercise electrocardiograph-ballistocardiograph signal set.

12. The system according to claim 6, wherein said computer includes a graphical user interface in communication with said microprocessor, said graphical user interface for allowing an operator to input data into said database.

13. The system according to claim 1, further comprising one or more filters for conditioning at least one of said electrocardiograph signal and said ballistocardiograph

14. The system according to claim 13, wherein said filters comprise a filter having high-pass cutoff frequency of about 40 Hz and a low pass filter of about 1 Hz for conditioning said electrocardiograph signal.

15. The system according to claim 13, wherein said filters comprise a filter having high-pass cutoff frequency of about 25 Hz and a low pass filter of about 1 Hz for conditioning said ballistocardiograph signal.

16. A system for monitoring an individual'"'"'s physiological condition comprising:

a first device for detecting and transmitting electrocardiograph signals of said individual;

a second device for detecting and transmitting ballistocardiograph signals of said individual;

a third device in communication with said first device and said second device for converting said electrocardiograph signals into electrocardiograph data and for converting said ballistocardiograph signals into ballistocardiograph data;

a microprocessor in communication with said third device for receiving said electrocardiograph data and said ballistocardiograph data, synchronizing said electrocardiograph data with said ballistocardiograph data, and generating an output indicative of said individual'"'"'s physiological condition.

17. The system according to claim 16, wherein said third device comprises an analog-digital converter.

18. The system according to claim 16, wherein said first device comprises an electrocardiograph.

19. The system according to claim 16, wherein said second device comprises an accelerometer.

20. The system according to claim 19, wherein the accelerometer is configured to be positioned on the sternum of said individual.

21. The system according to claim 16, further comprising a database in communication with said microprocessor, said database for storing said electrocardiograph data and said ballistocardiograph data.

22. The system according to claim 16, wherein synchronizing said electrocardiograph data with said ballistocardiograph data includes aligning an R peak of an electrocardiograph waveform corresponding to said electrocardiograph data with an H peak of a ballistocardiograph waveform corresponding to said ballistocardiograph data.

23. The system according to claim 16, wherein said output is provided on a device selected from the group consisting of monitors, screens, printers and plotters.

24. The system according to claim 16, wherein said output comprises a synchronized electrocardiograph-ballistocardiograph waveform.

25. The system according to claim 21, wherein said output comprises a comparison of said electrocardiograph data and said ballistocardiograph data of said individual with reference electrocardiograph and ballistocardiograph wave pattern data, said reference electrocardiograph and ballistocardiograph wave pattern data being stored in said database.

26. The system according to claim 16, wherein said output comprises a comparison of at least one resting-stage electrocardiograph-ballistocardiograph signal set and at least one post-exercise electrocardiograph-ballistocardiograph signal set.

27. The system according to claim 21, further comprising a graphical user interface in communication with said microprocessor, said graphical user interface for allowing an operator to input data into said database.

28. The system according to claim 16, further comprising one or more filters for conditioning said electrocardiograph signals and/or said ballistocardiograph signals.

29. The system according to claim 28, wherein said filters comprise a filter having a high-pass cutoff frequency of about 40 Hz and a low pass filter of about 1 Hz for conditioning said electrocardiograph signals.

30. The system according to claim 28, wherein said filters comprise a filter having a high-pass cutoff frequency of about 25 Hz and a low pass filter of about 1 Hz for conditioning said ballistocardiograph signal.