Visceral fat meter provided with tonometer

• US 20040077955A1
• Filed: 08/11/2003
• Published: 04/22/2004
• Est. Priority Date: 02/23/2001
• Status: Active Grant

• Current Assignee: Yamato Scale Company Limited
• Original Assignee: Yamato Scale Company Limited
• Inventors: Okita, Koichi, Kawanishi, Shozo
• Granted Patent: US 6,905,464 B2
• Time in Patent Office: Days
• US Class Current: 600/483
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/02116 of pulse wave amplitude A61B5/02225 takes precedence
• CPC Class Codes: A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content

Abstract

A visceral fat scale equipped with a sphygmomanometer is described, with which a subject can keep track of blood pressure values and grasp the state of obesity to attain more accurate, comprehensive and diversified diagnoses and disease prevention. The visceral fat scale is designed such that after exerting pressure to an artery of a subject by inflation of a cuff, a pulse wave signal is detected in the course of gradual cuff deflation and blood pressure is obtained based on the detected pulse wave signal. The scale comprises an increment/decrement key and display mode selector key for inputting personal data of the subject; an arithmetic operation unit for calculating the amount of visceral fat of the subject based on data input by these keys; and a display unit for displaying a result of the calculation performed by the arithmetic operation unit.

Claims

1. A visceral fat scale equipped with a sphygmomanometer, wherein after exerting pressure to an artery of a subject by inflation of a cuff, a pulse wave signal is detected in the course of gradual cuff deflation and blood pressure is obtained based on the detected pulse wave signal, the visceral fat scale comprising:

an input device for inputting personal data of the subject;

an arithmetic operation unit for calculating the amount of visceral fat of the subject based on the data input by the input device; and

a display unit for displaying a result of the calculation performed by the arithmetic operation unit.

2. The visceral fat scale equipped with a sphygmomanometer according to claim 1, wherein the personal data input by the input device includes the height, weight and waist size of the subject and wherein the arithmetic operation unit calculates the BMI of the subject in addition to the amount of visceral fat of the subject based on the data input by the input device.

3. The visceral fat scale equipped with a sphygmomanometer according to claim 2, wherein the display unit displays the respective ranks of the visceral fat amount and BMI of the subject, each of said indices having a plurality of ranks.

4. The visceral fat scale equipped with a sphygmomanometer according to claim 2 or 3, wherein the arithmetic operation unit makes an assessment of obesity by comparing the amount of visceral fat and BMI of the subject with their respective reference values for assessment which have been input beforehand, and wherein the display unit displays a result of the assessment of obesity.

5. The visceral fat scale equipped with a sphygmomanometer according to claim 1, wherein the display unit displays blood pressure values and the amount of visceral fat at the same time.

6. The visceral fat scale equipped with a sphygmomanometer according to claim 1, wherein the arithmetic operation unit calculates the amount of change from a previous measurement result and the ratio of the present measurement result to the previous measurement result for the blood pressure values and visceral fat amount of the subject, and wherein the display unit displays a result of the calculation.

7. The visceral fat scale equipped with a sphygmomanometer according to claim 1, wherein the amount of visceral fat is the cross-sectional area of abdominal visceral fat of the subject.

8. The visceral fat scale equipped with a sphygmomanometer according to claim 7, wherein a target inflation value for the cuff is determined by a systolic blood pressure estimated based on a pulse wave generated during cuff inflation and by the cross-sectional area of abdominal visceral fat.

9. The visceral fat scale equipped with a sphygmomanometer according to claim 7, wherein a target inflation value for the cuff is determined by a systolic blood pressure estimated based on a pulse wave generated during cuff inflation and by a result of the assessment of obesity.

10. A visceral fat scale equipped with a sphygmomanometer, wherein after exerting pressure to an artery of a subject by inflation of a cuff, a pulse wave signal is detected in the course of gradual cuff deflation and blood pressure is obtained based on the detected pulse wave signal, the visceral fat scale comprising:

an input device for inputting personal data including the height, weight and waist size of the subject;

electrodes for current application and electrodes for measurement which are brought into contact with part of the body of the subject;

a body impedance measuring unit for measuring the body impedance of the subject based on a signal from the measurement electrodes;

an arithmetic operation unit for calculating at least any of the BMI, percent body fat and visceral fat amount of the subject based on data input by the body impedance measuring unit and data input by the input device; and

a display unit for displaying a result of the calculation performed by the arithmetic operation unit.

11. The visceral fat scale equipped with a sphygmomanometer according to claim 10, wherein the display unit displays the rank of any of the BMI, percent body fat and visceral fat amount of the subject, each of said indices having a plurality of ranks.

12. The visceral fat scale equipped with a sphygmomanometer according to claim 10 or 11, wherein the arithmetic operation unit makes an assessment of obesity by comparing any of the BMI, percent body fat and visceral fat amount of the subject with their respective reference values for assessment which have been input beforehand, and wherein the display unit displays a result of the assessment of obesity.

13. The visceral fat scale equipped with a sphygmomanometer according to claim 10, wherein the display unit displays blood pressure values and the amount of visceral fat at the same time.

14. The visceral fat scale equipped with a sphygmomanometer according to claim 10, wherein the arithmetic operation unit calculates the amount of change from a previous measurement result and the ratio of the present measurement result to the previous measurement result for the blood pressure values and visceral fat amount of the subject, and wherein the display unit displays a result of the calculation.

15. The visceral fat scale equipped with a sphygmomanometer according to claim 10, wherein the amount of visceral fat is the cross-sectional area of abdominal visceral fat of the subject.

16. The visceral fat scale equipped with a sphygmomanometer according to claim 15, wherein a target inflation value for the cuff is determined by a systolic blood pressure estimated based on a pulse wave generated during cuff inflation and by the cross-sectional area of abdominal visceral fat.

17. The visceral fat scale equipped with a sphygmomanometer according to claim 15, wherein a target inflation value for the cuff is determined by a systolic blood pressure estimated based on a pulse wave generated during cuff inflation and by a result of the assessment of obesity.