CARDIOVASCULAR HEALTH STATUS EVALUATION SYSTEM AND METHOD

• US 20120157792A1
• Filed: 12/17/2010
• Published: 06/21/2012
• Est. Priority Date: 12/17/2010
• Status: Abandoned Application

• Current Assignee: National Chiao Tung University (Government of The Republic of China)
• Original Assignee: National Chiao Tung University (Government of The Republic of China)
• Inventors: CHANG, Chia-Chi, Hsiao, Tsu-Chien, Hsu, Hung-Yi
• Application Number:
  US12/971,796
• Publication Number:
  US 20120157792A1
• Time in Patent Office: Days
• US Class Current: 600/301
• 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 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

A cardiovascular health status evaluation system includes a sensing unit and a computing unit. The sensing unit is for measuring impulses of the cardiovascular circulation of a user. The computing unit is for calculating a standard deviation and an average of time intervals between the impulses in a unit time, and based on a change of a ratio between the standard deviation and average, evaluating the cardiovascular health status of the user. The evaluation index of the aforementioned system includes a personalized parameter (the average), thereby enabling a personalized comparison. A cardiovascular health status evaluation method is also disclosed herein.

Claims

1. A cardiovascular health status evaluation system comprising:

a sensing unit for measuring impulses of cardiovascular circulation of a user; and

a computing unit electrically connected with the sensing unit for calculating a standard deviation and an average of the impulses of the cardiovascular circulation in a unit time, and based on a change of a ratio between the standard deviation and the average, evaluating the cardiovascular health status of the user.

2. The cardiovascular health evaluation system according to claim 1, wherein the computing unit corresponds the ratio to a baro-reflex sensitivity (BRS) index to evaluate the cardiovascular health status of the user.

3. The cardiovascular health evaluation system according to claim 1, further comprising:

a storage unit electrically connected with the computing unit for storing the ratio.

4. The cardiovascular health evaluation system according to claim 3, wherein the computing unit further compares for the change between the previous and present calculated ratios to evaluate the cardiovascular health status of the user.

5. The cardiovascular health evaluation system according to claim 1, wherein the computing unit compares for the change between the ratios respectively when the user is under a first state and a second state to evaluate the cardiovascular health status of the user.

6. The cardiovascular health evaluation system according to claim 1, wherein the sensing unit measures the heart beat, pulse, blood oxygen concentration or the combination thereof.

7. The cardiovascular health evaluation system according to claim 1, wherein the sensing unit comprises an electrocardiograph, a pulse oximeter, a photo-plethysmograph or the combination thereof.

8. The cardiovascular health evaluation system according to claim 1, further comprising:

an output unit electrically connected with the computing unit for outputting the cardiovascular health status of the user evaluated by the computing unit.

9. The cardiovascular health evaluation system according to claim 8, wherein the output unit comprises a display, an indicator light, a printer, a speaker or the combination thereof.

10. A cardiovascular health status evaluation method comprising:

measuring impulses of cardiovascular circulation of a user;

calculating a standard deviation and an average of time intervals between impulses of the cardiovascular circulation in a unit time; and

evaluating the cardiovascular health status of the user based on a change of a ratio between the standard deviation and the average.

11. The cardiovascular health status evaluation method according to claim 10, wherein the evaluating step corresponds the ratio to a baro-reflex sensitivity (BRS) index to evaluate the cardiovascular health status of the user.

12. The cardiovascular health status evaluation method according to claim 10, further comprising:

storing the ratio.

13. The cardiovascular health status evaluation method according to claim 12, further comprising:

comparing for the change between the previous and present calculated ratios to evaluate the cardiovascular health status of the user.

14. The cardiovascular health status evaluation method according to claim 10, wherein the evaluating step further compares for the change between the ratios respectively when the user is under a first state and a second state to evaluate the cardiovascular health status of the user.

15. The cardiovascular health status evaluation method according to claim 10, wherein the measuring step measures the heart beat, pulse, blood oxygen concentration or the combination thereof.

16. The cardiovascular health status evaluation method according to claim 10, wherein the impulses of the cardiovascular circulation are measured by an electrocardiograph, a pulse oximeter, a photo-plethysmograph or the combination thereof.

17. The cardiovascular health status evaluation method according to claim 10, further comprising:

outputting the evaluated cardiovascular health status.