KR200358195Y1 - A pulse measuring device - Google Patents

Abstract

The disclosed pulse wave measuring apparatus includes a first, second and third pressure sensor for pulsation, first, second and third driving means for individually driving the first, second and third pressure sensors in three axes, respectively. And a controller for adjusting the pulsation positions of the first, second, and third pressure sensors by controlling the first, second, and third driving means in response to the signals of the three pressure sensors, respectively. According to such a configuration, since three pressure sensors corresponding to three points of “chon”, “pipe” and “chuck” can be driven individually along the three axis directions, In addition, it is possible to perform objective and accurate pulses by responding to various types of blood vessels and pulses.

Description

Pulse measuring device {A pulse measuring device}

The present invention relates to a pulse wave measuring device that can be used in the medical field, such as pulsation or vascular diagnosis of oriental medicine.

In general, the diagnostic method of oriental medicine is composed of four methods, each of which is a paperweight, a paperweight, a paperweight, and a string of gold, and among them, pulse pulses are detected. The method of inferring the condition of the disease is a pulsating method belonging to the slack. The pulsation characteristics considered important in the pulse method include various characteristics such as the strength of the Mac, the depth of the Mac, the speed of the Mac, and the roughness of the Mac. In order to measure the characteristics of these various pulsations, a technique is needed to pinpoint the location of blood vessels and to read accurate measurements therefrom.

In the six-position method, one of the commonly known pulse methods, three fingers are placed on the inside of the examinee's wrist in three regions of the "chon", "tub", and "chuck". The pulsation is measured. In other words, the coronary projections on the radial artery are called "tubs" and the examiner's middle finger is placed thereon. After placing the index finger and ring finger on 지를) ", the pulsation detected by three fingers is measured. In this state, the pulsation state is examined by applying a slight force to the three fingers in the first stage. The state detected by applying a small force is called "boo". The state detected by applying more force is called "medium", and in step 3, the state that is applied to the state of "medium" is slightly loosened and the state detected is called "needle". Therefore, when determining the condition of the examinee by the pulsation method, the three fingers are placed on the three positions of "chon", "tube", and "chuck" as described above, and the pressure state is "part". The pulsation is measured while changing to "medium" or "needle".

However, when a person performs such a pulsation, the subject's condition is judged solely based on the subject's subjective sense and experience, and thus, the result of the measurement may be severe and the reliability of the diagnosis may be inferior. . Therefore, in recent years, the research of the pulse wave measuring device which can objectively and visually confirm the pulsation of the examinee has been actively conducted.

FIG. 1 shows an example of the pulse wave measuring apparatus 5 which has been proposed conventionally for such pulse wave measurement. In this device, three rods (1) (2) (3), which serve as three fingers, are fixed to the elevating block (4) so that when the elevating block (4) is lowered, three rods (1) (2) (3) The pulsating signal is detected by touching the subject's wrist. However, in such a structure, since the three rods (1) (2) (3) is completely fixed to the elevating block (4), there is no choice but to apply the pulse region of the examinee uniformly. However, in reality, the shape of blood vessels, the curvature of the wrist, the elasticity of the skin, etc. may vary, so that the pulsation site may vary widely. Since the relative positions of the sites can also be different, this uniform fixed pulse mechanism has limitations in measurement. Indeed, when a Chinese doctor pulses a child, three fingers are used to measure it. Therefore, the device 5 shown in FIG. 1 cannot be replaced with the existing pulse by a human finger.

On the other hand, Korean Patent Laid-Open No. 2002-96224 discloses a device configured to move the pulse sensor in three axes, so that the sensor is automatically moved to the pulse position indicated by the examinee. However, this device is also merely to send the sensor to the position indicated by the controller, and whether or not the indicated position is the exact pulse position still depends on the examiner's sense of indicating the pulse position. In addition, because one sensor to measure the three regions of "chon (") "," tube "," chuck "one by one in sequence, there is a disadvantage that takes too much measurement time.

Therefore, there is a need for a new type of pulse wave measuring apparatus that can solve these problems.

The present invention was created in view of the above necessity, and an object of the present invention is to provide an improved pulse wave measuring apparatus capable of accurately measuring a pulse position of each person, while enabling rapid measurement.

1 is a view showing a conventional pulse wave measuring apparatus,

2 is a perspective view showing a pulse wave measuring apparatus according to the present invention,

3 is a plan view showing the structure of a pressure sensor of the pulse wave measuring apparatus shown in FIG.

4 is a view illustrating a state in which the pressure sensor of the pulse wave measuring apparatus shown in FIG. 2 is in contact with the wrist of the examinee;

5 is a view showing an example of a measurement signal by the pressure sensor of the pulse wave measuring apparatus shown in FIG.

<Description of Symbols for Major Parts of Drawings>

10,20,30 ... 1st, 2nd, 3rd pressure sensor 40 ... controller

100,200,300 ... 1,2,3 drive means 101,201,301 ... arm

102,202,302 ... Hinge Brackets

Pulse wave measuring apparatus of the present invention for achieving the above object, the first, second, third pressure sensor for pulsation, and the first, second, third pressure sensor to drive each of the first, second, third pressure sensor in three axes, respectively, And a controller for adjusting the pulsation position of the first, second and third pressure sensors by controlling the third driving means and the first, second and third driving means, respectively, in response to the signals of the first, second and third pressure sensors. Characterized in that.

Each of the first, second, and third driving means includes an arm on which the pressure sensor is mounted, an X axis ball screw mechanism for reciprocating the arm in the X axis direction, and a Y axis for reciprocating the arm in the Y axis direction. And a Z-axis ball screw mechanism for reciprocating the arm in the Z-axis direction, wherein each pressure sensor is installed on a hinge bracket that is elastically rotatably coupled to each of the arms. It is preferable.

In addition, the controller preferably controls feedback so that the pressure value measured from the first, second and third pressure sensors is maintained at a set pressure value. The first, second and third pressure sensors may include a multi-channel having a plurality of detection elements. It is preferably composed of a sensor.

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

Figure 2 shows a pulse wave measuring apparatus according to the present invention.

As shown, the pulse wave measuring apparatus of the present invention includes three pressure sensors for each of one portion corresponding to “chon”, “tube”, and “chuck” of the six-fold method. (10) 20 and 30 and drive means for individually driving the respective pressure sensors 10 and 20 and 30 are provided. Hereinafter, the three pressure sensors are first (10), second (20), and third pressure sensor in the order of "chon", "pipe", "chuck", respectively 30, and the driving means corresponding to each is called the first driving means 100, the second driving means 200, and the third driving means 300. Reference numeral 40 denotes a controller which controls the pulse wave measuring device as a whole, and in particular, the first, second and third driving means 100 according to the signals from the first, second and third pressure sensors 10, 20 and 30. By controlling the (200) (300) serves to adjust the pulsation position of each sensor (10, 20, 30). Each of the pressure sensors 10, 20, and 30 includes a multi-channel sensor in which six detection elements e are arranged in two rows as shown in FIG. 3. Therefore, the pulsation position is adjusted with the difference in input values from the elements e. The principle of pulsation position adjustment using the multi-channel sensor will be described later.

First, among the three pressure sensors 10, 20, 30, the second pressure sensor 20 and the second driving means 200 corresponding to the pulsation position of the center "pipe" is the reference to be. The second driving means 200 is an arm 201 on which the second pressure sensor 20 is mounted, and an X axis ball for moving the arm 201 in the X, Y, and Z directions using a ball screw mechanism. The screw mechanism 210, the Y-axis ball screw mechanism 220, and the Z-axis ball screw mechanism 230 are provided. The second pressure sensor 20 is installed on the bottom surface of the hinge bracket 202 elastically rotatably coupled to the free end of the arm 201. As shown in FIG. 4, the hinge bracket 202 is rotated according to the curvature of the examinee's wrist 400 so that accurate and even pressure is applied to all six detection elements e.

The X-axis ball screw mechanism 210 includes a ball screw 212 coupled to the base plate 213 and a motor 211 for rotating the ball screw 212. Therefore, when the motor 211 rotates the ball screw 212, the base plate 213 moves in the X-axis direction, and eventually the entire unit placed on the base plate 213 moves in the X-axis direction.

The Y-axis ball screw mechanism 220 includes a ball screw 222 coupled to the subplate 223 on the base plate 213, and a motor 221 for rotating the ball screw 222. do. Therefore, when the ball screw 222 is rotated by the motor 221, the subplate 223 moves in the Y-axis direction. Not only the second pressure sensor 20 but also the first and third pressure sensors 10 and 30 and the first and third driving means 100 and 300 which are driving means are mounted on the subplate 223. Therefore, when the base plate 213 and the sub plate 223 are moved in the X-axis direction and the Y-axis direction, the whole moves together.

In addition, the Z-axis ball screw mechanism 230 includes a ball screw 232 and a motor 231 coupled to the arm 201. Therefore, when the ball screw 232 is rotated by the motor 231, the arm 201 is lifted in the Z-axis direction to adjust the position of the second pressure sensor 20.

Therefore, the position of the second pressure sensor 20 can be adjusted in three axial directions while driving the X, Y, Z axis ball screw mechanisms 210, 220 and 230. Of course, since the second pressure sensor 20 is a center position as a reference, in the X and Y axis directions, the entire unit mounted thereon moves as described above.

Next, the first pressure sensor 10 and the third pressure sensor 30 detect the pulsation positions corresponding to "ching" and "chuck", respectively. Of course, on the contrary, the first pressure sensor 10 corresponds to the position of "chuck" and the third pressure sensor 30 may correspond to the position of "chon". Explain that (10) corresponds to "chon".

Referring to FIG. 2, the first driving means 100 for driving the first pressure sensor 10 in three axial directions is similar to the second driving means 200 via the hinge bracket 102. 1, the arm 101 supporting the pressure sensor 10 and the X, Y, Z axis ball screw mechanisms 110, 120, 130 for driving the arm 101 in the X, Y, Z axis directions, respectively. ).

First, the Y-axis ball screw mechanism 120 of the first driving means 100 includes a ball screw 122 and a motor 121 coupled to the arm 101, the X-axis ball screw mechanism 110 Includes a ball screw 112 and a motor 111 coupled to the arm block 101 and the sub block 113 on which the ball screw 122 is mounted, and the Z-axis ball screw mechanism 130 includes the sub block ( The ball screw 132 and the motor 131 coupled to the base block 133 on which the 113 is mounted are included. Accordingly, the Z-axis ball screw mechanism 130 lifts the base block 133 in the Z-axis direction, and the X-axis ball screw mechanism 110 moves the sub-block 113 in the X-axis direction, and the Y-axis ball screw. The mechanism 120 moves the arm 101 in the Y-axis direction, whereby the three-axis position of the first sensor 10 is adjusted by the combination thereof.

In addition, since the third driving means 300 is a symmetrical structure having the same configuration as the first driving means 100, description thereof will be omitted.

Therefore, the positions of the first, second, and third pressure sensors 10, 20, 30 are individually set in three directions by the first, second, and third driving means 100, 200, and 300 as described above. Can be adjusted. Accordingly, the sensors 10 may respond to the case where the interval between the three points of “chon”, “tube”, and “chuck” is different or the blood vessel is bent back and forth according to the body shape. 20) (30) can be adjusted, and in addition to the six subtractive method, if you want to pulse only one point, such as the five-macromethod, only one of the three sensors need to be lowered because the response is possible.

Next, the multichannel structure of the first, second and third pressure sensors 10, 20 and 30 will be described.

As described above, the first, second, and third pressure sensors 10, 20, 30 are constituted by a multi-channel sensor in which a plurality of detection sensors e are arranged in two rows. This structure is useful for finding the location of the Mac and for determining whether the site is an accurate pulsation. For example, assuming that a pulse wave signal as shown in FIG. 5 is input from each of the detection elements e of the first, second and third pressure sensors 10, 20 and 30, this indicates that the exact position of the blood vessel is indicated by a dotted line. It is meant to be inclined as shown. Therefore, when a signal of this pattern is input, the controller 40 controls the first and third driving means 100 and 300 to move the first and third pressure sensors 10 and 30 in the direction of the arrow. As a result, the purified pulsation position can be obtained. Thus, if the multi-channel pressure sensor 10, 20, 30 and the first, second, third driving means 100, 200, 300 that can adjust their positions individually, the actual measured value Since it is possible to accurately locate blood vessels, the reliability of the measurement results can be greatly improved.

On the other hand, the controller 40 has a feedback control with the measurement signal of each sensor 10, 20, 30 so that the pressure value measured by each pressure sensor 10, 20, 30 is accurately maintained at the set value Do This is particularly useful when the three sensors 10, 20, 30 must press the pulsating site with the same force, such as when measuring the constitution vein. For example, if the second pressure sensor 20 is pressed by the force of 100 while the first pressure sensor 10 is pressing the one point by the force of 100, the skin is already pressed by the first pressure sensor 10 Since the state spreads widely, the pressure of the second pressure sensor 20 may be relatively decreased. Therefore, when the pulsation portion is pressurized only by the calculated indication value, an error is likely to occur. When the feedback control is performed with the measured value as described above, the actual pressure can be accurately provided, thereby reducing the measurement error.

The pulse wave measuring apparatus of the present invention as described above provides the following effects.

First, since three pressure sensors corresponding to three points of “chon”, “tube” and “chuck” can be driven individually along the three axes, Corresponds to both form and pulse method, allowing objective and accurate pulse positioning.

Secondly, each pressure sensor is installed on the hinge bracket that can be rotated elastically, so that the sensor and the skin can be accurately contacted even in a region of high curvature, thereby improving the accuracy of the measured value.

Third, since the pulse wave signal can be read from the multi-channel type pressure sensor to automatically locate the blood vessel, more accurate pulse results can be obtained.

Fourth, since the feedback pressure on the pulsation region is feedback-controlled, it is possible to reduce the measurement error caused by the pressure drop.

Fifth, when the six-arrhythmic technique is used to measure three points at the same time, “chon”, “pipe”, and “chuck”, it is faster to operate than the instrument that used to measure one point at a time. It is possible.

It is understood that the invention is not limited to that described above and illustrated in the drawings and that many more modifications and variations are possible within the scope of the following claims.

Claims (5)

First, second and third pressure sensors for pulsation; First, second and third driving means for individually driving the first, second and third pressure sensors in three axes; And a controller for adjusting the pulsation positions of the first, second and third pressure sensors by controlling the first, second and third driving means in response to the signals of the first, second and third pressure sensors, respectively. Pulse wave measuring device. The method of claim 1, Each of the first, second and third driving means, An arm to which the corresponding pressure sensor is mounted, An X-axis ball screw mechanism for reciprocating the arm in the X-axis direction, A Y-axis ball screw mechanism for reciprocating the arm in the Y-axis direction, And a Z-axis ball screw mechanism for reciprocating the arm in the Z-axis direction. The method of claim 2, Each said pressure sensor is a pulse wave measuring device, characterized in that installed on the hinge bracket coupled to the respective arms resiliently rotatably. The method of claim 1, The controller is a pulse wave measuring device, characterized in that for controlling the feedback so that the pressure value measured from the first, second, third pressure sensor is maintained at a set pressure value. The method according to any one of claims 1 to 4, The first, second, third pressure sensor, A pulse wave measuring apparatus, characterized in that the multi-channel sensor having a plurality of detection elements.