KR20110017093A - The apparatus and the method for measuring human pulse - Google Patents

Abstract

PURPOSE: An apparatus and a method for measuring a human pulse are provided to improve precision in measuring pulsating wave by using a laceration and burn in a human pulse. CONSTITUTION: An apparatus and a method for measuring a human pulse include a pressure sensor(30), a video camera(40), and a thermal image camera(50). The pressure sensor detects pulsating wave in a target region through an electrical signal. A sensor controller selects a region for measuring the pulsating wave. The thermal image camera(50) senses the infrared ray from an object and coverts it into an electrical signal.

Description

Pulser and its operation method {The apparatus and the method for measuring human pulse}

The present invention relates to a pulsator and its operating method, and more particularly, to a pulsator and its operating method that can accurately detect the pulsation site and thereby improve the accuracy of the measured pulsating wave.

In oriental medicine or veterinary medicine, the pulsating wave information generated in relation to the operation of the heart is very important. In oriental medicine, the morphology and characteristics of the pulsating wave are diagnosed to determine whether there are abnormalities in the body or symptoms of the disease, It can be used as a useful information for measuring the pulsation wave appearing in and to classify the patient's constitution into 8 constitutions.In quantitative medicine, the pulse and blood pressure are measured by measuring the period and intensity of the pulsation wave It is used as essential information for the treatment.

For the measurement of the pulsating wave, a method of measuring the pulsating wave appearing at three pulse points near the radial artery of the patient is generally widely used.

1 is a view showing the shape of a typical radial artery.

The radial artery is an artery that splits off the upper forearm and descends to the outside of the lower arm and reaches the palm of the hand, where the palm meets the periphery of the ulnar artery, creating two deep, shallow artery arches, and the wrist region passes between the radius and the skin. .

Therefore, in general, a method of diagnosing pulsating waves by using a finger on the three pulse points of a village, a tube, and a chuck as shown in FIG. 1 has been used. As one of them, a pulsator is developed and used to measure the pulsation wave and visually display it.

In such a pulsator, the sensor is the most important element provided to measure the pulsating wave, it may be composed of sensor elements having a variety of physical properties depending on the intended use. At this time, since the skeleton or muscle structure or shape near the radial artery for the pulse of the human body has an irregular shape, it is difficult to select the exact pulse point and to perform the pulse under the same measurement conditions. Several studies are being done.

Utility Model Registration No. 20-232282 and Patent Registration No. 10-899155 are one of the proposals to solve this problem, Utility Model Registration No. 20-232282 is the back of the subject's hand automatically when the arm is placed in the rest It is struck downward to clearly expose the dermatoma, and has a seating groove so that the arm does not flow arbitrarily, Patent No. 10-899155 is an air pocket and imaging to directly obtain an image of the pulsating movement of the radial artery instead of the sensor An element is provided.

However, in the Utility Model Registration No. 20-232282, the pressure gauge provided to measure the pulsation is fixed to the upper surface of the pulsator main body to perform vertical vertical movement only, and there is no separate device for selecting the pulsation position. Patent No. 10-899155 is provided with an imaging device, but this is to obtain an image of the pulsation movement to measure the pulsation, and requires a high-quality image pickup device so that the movement can be clearly displayed, and the captured pulse wave image signal An image processing apparatus for processing is provided.

The present invention is to compensate for the problems according to the prior art described above, by taking an image and a thermal image of the pulsation site and confirming the position of the radial artery from it to measure the pulsating wave to improve the accuracy or accuracy of the measurement An object of the present invention is to provide a pulsator and a method of operating the same.

Pulse device according to an embodiment of the present invention for this purpose, the pressure sensor for measuring the pulsating wave; And a sensor control unit for analyzing the surface temperature near the wrist to select a pulsation measurement point of the radial artery, and pressurizing when the pressure sensor contacts the pulsation measurement point so that the pulsation wave is measured. Allow measurement to occur.

In addition, the operation method of the pulse generator according to an embodiment of the present invention for this purpose, the first step of imaging the image of the measurement site for the pulse; A second step of generating a thermal image of a predetermined region of the captured image image to analyze surface temperature of each region of the region and to select a pulsation measurement point of the radial artery region; And a third step of contacting and pressing the pressure sensor to the selected pulsation measurement point to detect the pulsation wave.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a side view showing the configuration of a pulsator according to a preferred embodiment of the present invention.

The pulsator according to the preferred embodiment of the present invention is largely configured to include a measurement unit for measuring pulse waves of the wrist region to generate data and a measurement control unit 70 for detecting pulsation waves from the generated data and controlling the operation of the measurement unit. do.

The measuring unit includes a pressure sensor 30 that contacts and presses the pulsating portion to detect a wave at the measuring portion as an electrical signal, and a pressing portion which moves and presses the pressure sensor 30 to be in a proper position for measuring the pulse wave. It is configured to include, and further comprises a support (10, 80) for fixing and supporting the pressing portion and the wrist support 90 for fixing to minimize the movement of the wrist during pulsation.

In particular, in the pulsator according to an embodiment of the present invention, the pressing unit generates an image and a thermal image of the wrist region and checks the position of the radial artery from the pulsator, for this purpose, the imaging camera 40 and the thermal imaging camera. It consists of 50. It also comprises a laser pointer 60 which instructs the pressure sensor 30 to be properly positioned at the pulsation point.

The thermal imaging camera 50 is an electronic device that detects infrared rays emitted from an object, converts them into electronic signals, and transfers them to generate an image in black and white or color. All objects emit infrared rays above the absolute temperature of 0K (-273 ℃), and the amount of infrared rays emitted is proportional to the activity and metabolism of the molecules. Focusing on the high point compared to the embodiment of the present invention, by using the thermal imaging camera 50 to check the site where the artery passes and accordingly select the pulsation position according to the relatively accurate irrespective of the position of the radial artery slightly different for each subject Allow pulsation to occur.

The pressing part is horizontally divided and connected to both side supports (10, 80), and is configured to include a pressure rod (20) that can move up and down and a pressure rod (20) that can move to the left and right. The pressure bar 20 is applied to the pressure sensor 30 in contact with the radial artery point to force a certain amount of pressure is transmitted, the support bars 10, 80 disposed on both sides of the force when the pressure bar 20 moves up and down To disperse the stable pressurization. In addition, the pulsating rod is vertically connected to a predetermined point of the pressure rod 20 and the pressure sensor 30 is attached to the end of the pressure sensor 30 is moved to the left and right when the position of the pressure sensor 30 is determined, the pressure sensor (30) The pressure rod 20 moves downward until the pressure sensor 30 contacts the predetermined radial artery point as the pressure rod 20 moves downward, and the pressure of the pressure rod 20 is increased by the pressure sensor 30 and the pressure sensor 30. Ensure that it is delivered to the appropriate body point.

At this time, the pressure rod 20 and the pulsating rod is made integral with the pressure sensor 30 can be configured to move to the appropriate position while moving up and down, left and right together, the specific arrangement or shape of such a pressing portion is easily changed by those skilled in the art It is not intended to be limited to the examples disclosed herein.

In the pulsator according to the embodiment of the present invention, the wrist rest 90 is made of a hard material that can support the wrist so that the wrist part does not move downward while the pressure sensor 30 contacts the pulsation part and presses the artery part. It is desirable to have the back of the hand naturally fall downward so that the dermal region can be clearly exposed. In addition, the width adjusting portion may be formed to adjust the width according to the thickness of the wrist of the subject, it is preferable that the pulsation portion is made of a curved surface for seating the wrist so as to vertically contact the sensor.

3 is a block diagram showing the internal configuration of the measurement control unit in the pulsator according to the preferred embodiment of the present invention.

In the pulsator according to the preferred embodiment of the present invention, the measurement control unit 70 may include a signal processing unit, a sensor control unit, and a pulsation measuring unit as shown in FIG. 3. The sensor control unit controls the movement of the pressurization unit so that the pressure sensor can pulse, and the pulsation measurement unit measures the pulsation wave through the signal data transmitted from the pressure sensor.

The signal processor performs signal processing (DSP) on the electrical signal transmitted from the image camera or the thermal image camera to output a predetermined image.

4 is an exemplary view showing an image image of a body part photographed in a pulsator according to a preferred embodiment of the present invention, and FIG. 5 is a diagram illustrating positioning of a sensor in a pulsator according to a preferred embodiment of the present invention. An example is illustrated.

As described above, in the pulsator according to the preferred embodiment of the present invention, the imaging camera captures a portion of the wrist to determine a predetermined region for generating a thermal image, as shown in FIG. The wrist part is fixed and the wrist part is picked up. In the captured image, check at least one of various feature points of the wrist such as radius (A), wrist wrinkle (D), tendon (tendon, C), inflection point (B), and analyze the coordinates. Move the pressurizing portion or pulse bar to the point determined to be.

In this case, the image camera is sufficient if the resolution of the degree enough to check the feature point of the wrist portion, may be applied to any small image pickup device capable of capturing an image, such as a CCD camera.

When the movement is completed, a thermal image of the wrist is generated at a location where the position is located. As shown in FIG. 5, the region I for capturing the thermal image in the thermal imager is larger than the region captured by the image camera. Will be reduced.

This is because there is a possibility that there is a part of the wrist having a temperature higher than the surface temperature caused by the radial artery, and therefore, to minimize the mistake of the radial artery being present in the corresponding area. ) To generate a thermal image, and then perform temperature analysis on the region shown in the thermal image to confirm the position of the radial artery (A _R ), and to determine the pulse point (P _L ).

Referring to the accompanying drawings, the operation method of the pulsator according to the preferred embodiment of the present invention configured as described above is as follows.

6 is a flowchart illustrating a method of operating a pulsator according to a preferred embodiment of the present invention.

In step S10, an image of the wrist portion placed on the wrist fixing part is taken, and the captured image is analyzed. Image analysis is a preliminary process for analyzing body heat. In order to analyze the temperature change around the radial artery, images of the wrist region are taken and the various features of the wrist region such as the radius, wrist wrinkles, and tendon are identified from the captured images. .

In step S20, a thermal imaging camera captures an area determined through image analysis to generate a surface temperature image of the corresponding area, and detects a pulsation area from the image captured in step S30. That is, in the embodiment according to the present invention, as described above, the temperature is imaged using the fact that the surface temperature of the portion where the artery passes is higher than that of other portions. First, the wrist region is imaged using a CCD camera, and the image is captured. The pressure sensor is moved by identifying various feature points such as radial, wrist wrinkles and tendons from the image, analyzing the coordinates, and determining the area to generate the thermal image.

Next, a thermal image is generated for the determined area and the surface temperature of each part is analyzed from the generated image. At this time, the region having a high temperature distribution is identified as the point where the radial artery passes, and one point, for example, the point having the highest temperature, is selected as the pulse measuring point to be pulsed.

Next, in step S40, the pressure sensor is placed at the selected pulse measuring point and pressurized to measure the pulsation wave. In this case, the laser pointer indicates the current position of the pressure sensor and the image is captured by an image camera to confirm whether the selected point and the position of the current pressure sensor match. Accordingly, the pressure sensor is moved to the pulsation measuring point. The contact position of the pressure sensor can be exactly matched to the selected point.

That is, when the position discrimination of the pulsation is completed, the pressure sensor is vertically lowered to perform the pulsation. The laser pointer instructs the sensor to correctly contact the detected pulsation position. The contact of the sensor can be detected by the variation of the pressure sensor output baseline for measuring the pulse wave, and the wrist can be fixed while measuring the pulse so that the pulse can be measured accurately.

As described above, the pulsator and its operation method according to the present invention have been described with reference to the illustrated drawings. However, the present invention is not limited to the embodiments and drawings disclosed in the present specification. It is apparent that the technical idea of the present invention, which determines the arterial part and precisely positions the pressure sensor at the site, enables the pulsation wave to be measured, can be easily modified by those skilled in the art within the scope of protection.

1 is a view showing the shape of a typical radial artery,

Figure 2 is a side view showing the configuration of a pulsator according to a preferred embodiment of the present invention,

3 is a block diagram showing the internal configuration of the measurement control unit in the pulsator according to the preferred embodiment of the present invention;

4 is an exemplary view showing an image image of a body part photographed in the pulsator according to the preferred embodiment of the present invention;

5 is an exemplary view showing an example of positioning of a sensor in a pulsator according to a preferred embodiment of the present invention, and

6 is a flowchart illustrating a method of operating a pulsator according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10, 80: support 20: pressure bar

30: pressure sensor 40: video camera

50: thermal imaging camera 60: laser pointer

70: measurement control unit 90: wrist strap

Claims (8)

A pressure sensor for measuring the pulsation wave; And The sensor control unit analyzes the surface temperature near the wrist to select the pulsation measurement point of the radial artery, and pressurizes the pressure sensor when the pressure sensor contacts the pulsation measurement point to measure the pulsation wave. Pulser comprising a. The method of claim 1, And a thermal imaging camera for imaging an area near the wrist to generate an image of a surface temperature. The method of claim 2, A pulser for determining an image capturing area of the thermal imaging camera, including a CCD camera for capturing an image near a wrist. The method of claim 2, And the sensor controller determines an image capturing area including a radial artery from an image captured by the CCD camera, and selects a pulse measuring point by analyzing a thermal image generated for the image capturing area. The method of claim 1, And a laser pointer for irradiating a laser to instruct the pressure sensor to be positioned at the pulse measuring point. A first step of capturing an image of a measurement part for pulsation; A second step of generating a thermal image of a predetermined region of the captured image image to analyze surface temperature of each region of the region and to select a pulsation measurement point of the radial artery region; And The third step of detecting the pulsating wave by contacting and pressing the pressure sensor to the selected pulsation measuring point Operation method of the pulsator comprising a. The method of claim 6, In the second step, the operation method of the pulsator, characterized in that to analyze the surface temperature of each part shown in the thermal image to the point where the relatively high surface temperature is selected as the pulsation measurement point. The method of claim 6, In the third step, the position of the pressure sensor is checked with a laser pointer, and the pressure sensor is moved so that the pressure sensor is positioned at the selected pulsation measuring point.

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