Portable device for measuring blood pressure and method thereof

Abstract

A portable blood pressure measuring apparatus and a method therefor are provided. A method for measuring blood pressure by an electronic device includes measuring a blood pressure of a user; measuring a Pulse Wave Velocity (PWV) using a pulse wave and an ElectroCardioGram (ECG) signal of the user, wherein the pulse wave is measured by an optical sensor, and the ECG signal is measured by an ECG electrodes portion; and compensating the blood pressure using the PWV.

What is claimed is: 
     
         1 . A method for measuring blood pressure by an electronic device, the method comprising:
 measuring a blood pressure of a user;   measuring a Pulse Wave Velocity (PWV) using a pulse wave and an ElectroCardioGram (ECG) signal of the user, wherein the pulse wave is measured by an optical sensor, and the ECG signal is measured by an ECG electrodes portion; and   compensating the blood pressure using the PWV.   
     
     
         2 . The method of  claim 1 , further comprising displaying the compensated blood pressure. 
     
     
         3 . The method of  claim 1 , wherein measuring the PWV using the pulse wave and the ECG signal comprises calculating the PWV by dividing a distance between a heart of the user and a measured point of the pulse wave by a time between an R peak of the ECG signal and a start point of the pulse wave. 
     
     
         4 . The method of  claim 1 , wherein compensating the blood pressure is performed using one of:
     P   brachial   =a+b×P   wrist or finger   +c×PWV          P   brachial   =a+b×P   wrist or finger   +C×PWV+d×PWV   2          P   brachial   =a+b×P   wrist or finger   +c×PWV+d×PWV   2   +e×PWV   3 ,   where P brachial  is a brachial blood pressure measurement, P radial  is a radial blood pressure measurement, PWV is a PWV, and a, b, c, d, and e are empirical constants for compensating the radial blood pressure measurement.   
     
     
         5 . An electronic device for measuring a blood pressure, comprising:
 a blood pressure measurer configured to measure a blood pressure of a user;   a Pulse Wave Velocity (PWV) measurer configured to measure a PWV using a pulse wave and an ElectroCardioGram (ECG) signal, wherein the pulse wave is measured by an optical sensor, and the ECG signal is measured by an ECG electrodes portion; and   a controller configured to compensate the blood pressure using the PWV.   
     
     
         6 . The electronic device of  claim 5 , further comprising a display configured to display the compensated blood pressure. 
     
     
         7 . The electronic device of  claim 5 , wherein the ECG electrode portion comprises three electrodes, two electrodes of the three electrodes being positioned inside of a cuff of the electronic device and a remaining one electrode of the three electrodes being is positioned outside of the cuff. 
     
     
         8 . The electronic device of  claim 5 , wherein the optical sensor comprises a light source and a light receiving device, and
 wherein the optical sensor is positioned inside of a cuff of the electronic device or at an additional device configured to attach to a finger of the user.   
     
     
         9 . The electronic device of  claim 5 , wherein the PWV measurer calculates the PWV by dividing a distance between a heart of the user and a measured point of the pulse wave by a time between an R peak of the ECG signal and a start point of the pulse wave. 
     
     
         10 . The electronic device of  claim 5 , wherein the controller compensates the blood pressure using one of:
     P   brachial   =a+b×P   wrist or finger   +c×PWV          P   brachial   =a+b×P   wrist or finger   +C×PWV+d×PWV   2          P   brachial   =a+b×P   wrist or finger   +c×PWV+d×PWV   2   +e×PWV   3 ,   where P brachial  is a brachial blood pressure measurement, P radial  is a radial blood pressure measurement, PWV is a PWV, and a, b, c, d, and e are empirical constants for compensating the radial blood pressure measurement.   
     
     
         11 . A method for measuring blood pressure by an electronic device, the method comprising:
 measuring a blood pressure of a user;   measuring a Pulse Wave Velocity (PWV) using a pulse wave, wherein the pulse wave is measured by an optical sensor; and   compensating the blood pressure using the PWV so that the blood pressure corresponds to a brachial blood pressure.   
     
     
         12 . The method of  claim 11 , further comprising displaying the compensated blood pressure. 
     
     
         13 . The method of  claim 11 , further comprising measuring an ElectroCardioGram (ECG) signal of a user using ECG electrode portion. 
     
     
         14 . The method of  claim 13 , wherein measuring the PWV using the pulse wave comprises calculating the PWV using the pulse wave and the ECG signal. 
     
     
         15 . The method of  14 , wherein measuring the PWV using the pulse wave and the ECG signal comprises calculating the PWV by dividing a distance between a heart of the user and a measured point of the pulse wave by a time between an R peak of the ECG signal and a start point of the pulse wave. 
     
     
         16 . The method of  claim 11 , wherein the blood pressure is compensated using one of:
     P   brachial   =a+b×P   wrist or finger   +c×PWV          P   brachial   =a+b×P   wrist or finger   +C×PWV+d×PWV   2          P   brachial   =a+b×P   wrist or finger   +c×PWV+d×PWV   2   +e×PWV   3 ,   where P brachial  is a brachial blood pressure measurement, P radial  is a radial blood pressure measurement, PWV is a PWV, and a, b, c, d, and e are empirical constants for compensating the radial blood pressure measurement.   
     
     
         17 . An electronic device for measuring blood pressure, comprising:
 a blood pressure measurer configured to measure a blood pressure of a user;   a Pulse Wave Velocity (PWV) measurer configured to measure a PWV using a pulse wave, wherein the pulse wave is measured by an optical sensor; and   a controller configured to compensate the blood pressure using the PWV.   
     
     
         18 . The electronic device of  claim 17 , further comprising a display configured to display the compensated blood pressure. 
     
     
         19 . The electronic device of  claim 17 , wherein the PWV measurer comprises the optical sensor for measuring the pulse wave. 
     
     
         20 . The electronic device of  claim 19 , wherein the PWV measurer further comprises an ElectroCardioGram (ECG) electrode portion for measuring an ECG signal. 
     
     
         21 . The electronic device of  claim 20 , the ECG electrode portion comprises three electrodes, two electrodes of the three electrodes being positioned inside of a cuff of the electronic device, and a remaining one electrode of the three electrodes being positioned outside of the cuff. 
     
     
         22 . The electronic device of  claim 19 , wherein the optical sensor comprises a light source and a light receiving device, and
 wherein the optical sensor is positioned inside of a cuff of the electronic device or at an additional device configured to attach to a finger of the user.   
     
     
         23 . The electronic device of  claim 20 , wherein the PWV measurer calculates the PWV by dividing a distance between a heart of the user and a measured point of the pulse wave by a time between an R peak of the ECG signal and a start point of the pulse wave. 
     
     
         24 . The electronic device of  claim 20 , wherein the controller compensates the blood pressure using one of:
     P   brachial   =a+b×P   wrist or finger   +c×PWV          P   brachial   =a+b×P   wrist or finger   +C×PWV d×PWV   2          P   brachial   =a+b×P   wrist or finger   +c×PWV+d×PWV   2   +e×PWV   3 ,   where P brachial  is a brachial blood pressure measurement, P radial  is a radial blood pressure measurement, PWV is a PWV, and a, b, c, d, and e are empirical constants for compensating the radial blood pressure measurement.