KR102022164B1 - Pressure pulse simulator with reflected wave and method for simulating radial pulsation based on cam mechanism - Google Patents

Abstract

The present invention relates to a pressure pulse waveform reproducing apparatus having a reflected wave and a reproducing method. More specifically, the pressure pulse wave reproducing apparatus, each of which is connected to one rotating shaft, the rotation motion generating unit for integrally rotating a plurality of pressure pulse wave curved plates having a different specific shape by one motor; A squeezing unit which is in contact with each of the squeezing wave-type curved plates and generates a squeezing waveform according to the rotation of each of the pressure-shrinking waveform plates; And a pressure pulse wave transmission unit, one side of which is connected to the other side of the pressure pulse generator to deliver the pressure pulse wave generated by the pressure pulse generator, and the pressure pulse wave reproducing apparatus having a reflected wave.

Description

Pressure pulse simulator with reflected wave and method for simulating radial pulsation based on cam mechanism}

The present invention relates to a pressure pulse waveform reproducing apparatus having a reflected wave and a reproducing method.

FIG. 1A depicts a graph showing aortic root pressure, intraventricular pressure, left atrium pressure, and left ventricular volume for cardiac operation. In addition, Figure 1b is a schematic diagram showing each part of the human heart. 1C shows a table summarizing the duration of left atrial contraction, left ventricular static contraction, release, static relaxation, rapid inflow, and cardiac arrest.

1D is a graph of left ventricular pressure and volume (left graph) and left ventricle as cardiac arrest, ventricular valve closure, left ventricular contraction, aortic valve opening, release, aortic valve closing, static relaxation, left ventricular valve opening It shows the pressure and the volume graph in the inside. In addition, Figure 1e shows a schematic diagram showing the human heart, upward aorta, subclavian artery, descending thoracic aortic aneurysm, pulmonary artery, Figure 1f shows a central blood pressure graph in the aortic arch.

1A, 1B, 1C and 1D, left atrial contraction, left atrioventricular valve closure, left ventricular static contraction, aortic valve opening, release, discharge valve closure, left ventricular static relaxation, left ventricular valve opening, rapid filling, It can be seen that the cardiac arrest is cycled with one cycle.

Therefore, it is possible to reproduce the ultra-precision artificial blood pressure waveform that is the same as the actual human blood pressure waveform only when the same process as the actual heart operation method is reproduced.

In the conventional blood pressure waveform simulator, a blood pressure waveform was created through open-loop control of a circulating fluid using a piston, a cylinder, and a motor that linearly moves a piston. However, since there is no device that acts as the left atrium, there is a problem that the circulation of the fluid is made in a different way from the human body, and the pressure pattern expressing various diseases of the cardiovascular system cannot be generated by controlling the open circuit.

Conventionally, hydraulic devices exist that attempt to reproduce shapes similar to the actual heart blood flow. Conventionally, the hydraulic blood flow drive device was developed as a cardiac pump using a rotary motor and a slider-crank structure. However, since the noise and residual vibration are severe and the force and speed are coupled, it is difficult to precisely control the displacement. There is a problem that can not express a variety of cardiovascular diseases, there is a problem that turbulence occurs using a ball check valve (Ball Check Valve).

In addition, the conventional arterial training wrist mechanism is a DC geared motor and a slider crank structure, which was developed as a nurse training for inserting a syringe to find arterial vessels, but there are problems of noise and vibration, and force and speed It is difficult to control precise displacement because of coupled (Coupled) also has a problem that can not express various cardiovascular diseases.

In addition, the conventional hydraulic blood flow driving system adopts a step motor, a timing belt, and a lead screw, and has been developed for precise discharge and control of fluid, enabling precise displacement and force control, and minimizing noise, vibration, and heat transfer effects. The slow speed is not suitable for simulating the blood flow of the heart.

Non-Invasive Blood Pressure that can store and reproduce the pressure waveform generated in the human body by pneumatic pressure according to the needs of the system to evaluate the uncertainty of the pressure indicator (blood pressure sensor) built in the blood pressure monitor to improve the reliability of blood pressure measurement. Monitor Analyzer was developed by FLUKE.

In addition, the conventional pneumatic blood pressure drive system is used to generate a pressure vibration of the air by reciprocating the piston to simulate the pressure vibration generated in the human arm to make a comparison value that can calibrate the pressure gauge.

However, this pneumatic blood pressure driving system was developed to simulate the pressure vibration generated in arterial vessels. Since air is compressible, there is a problem in that it is not suitable for expressing reflected waves and feelings of blood flow generated by incompressible blood flow, and thus it is not suitable for application to a blood pressure waveform reproducing device for promoting the wrist.

Conventional apparatus attempts to create pulse flow or blood pressure waveform by implementing the function of the left ventricle by utilizing a piston, a cylinder, and a motor that linearly moves the piston. However, the pulse flow or blood pressure waveform of a person is important not only the function of the left ventricle but also the function of the left atrium. The left atrium is caused by alternating the positive and negative pressures so that arterial blood is sent to the left ventricle and arterial blood is supplied from the pulmonary vein, thereby making it a closed circulation in the human body. In the conventional patent document, such a function of the left atrium is excluded, making it difficult to create various blood flows similar to the human body.

In addition, the pressure in the left ventricle that directly makes the pulse flow is an important factor, the conventional patent literature does not use the feedback of the pressure value, simply by using an open-loop control method, various cardiovascular diseases There was a limit that could not create a pressure pattern of pulse flow or blood pressure waveform that can be expressed.

In addition, in order to reproduce the blood pressure waveform, the left ventricle and the left atrium can be simulated to generate a pulsating flow in a closed fluid circulation method. However, this method increases the size of the device due to the enlargement of the device and the slow response of the servomotor. There are problems that are difficult to implement, difficult to deploy, and difficult to maintain.

Therefore, it has been required to develop a blood pressure waveform reproducing apparatus that can be easily implemented with a pulse pressure waveform plate, which can be compactly carried, economical, and fast in response, and accurately implements a blood pressure waveform.

Republic of Korea Patent No. 0912115 Republic of Korea Patent No.1428532 Republic of Korea Patent Publication No. 2009-0121458 Republic of Korea Patent Publication No. 2005-0117825 Republic of Korea Patent # 585848 Republic of Korea Patent Publication No. 2014-0109187 Republic of Korea Patent Publication No. 2009-0121459

Therefore, the present invention has been made to solve the conventional problems as described above, according to an embodiment of the present invention, by generating a pressure pulse waveform based on the pressure pulse wave inflexion plate, compact, portable and easy to maintain, It is an object of the present invention to provide a piezoelectric waveform reproducing apparatus that can rapidly implement a piezoelectric waveform with a fast reaction speed.

In addition, according to an embodiment of the present invention, the diastolic pressure of the pressure pulse waveform can be adjusted by the diastolic pressure pulse control unit, and a plurality of pressure pulse waveform plates are mounted on a single motor and a rotating shaft with a plurality of specific shape of the pressure pulse waveforms. A squeeze wave generation unit and a sine wave wave transmission unit are installed on each inflection plate to generate a squeeze waveform that accurately reproduces the forward wave and the reflected wave by driving a single motor. It is an object of the present invention to provide a pressure pulse wave reproducing apparatus having a reflected wave that can control a time interval between a forward wave and a reflected wave, which may vary by age group by changing a phase difference between plates.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those skilled in the art from the following description. It can be understood.

A first object of the present invention, in the pressure pulse wave reproducing apparatus, each of which is connected to one rotating shaft and a rotation motion generating unit for integrally rotating a plurality of pressure pulse wave deflection plate having a different specific shape by one motor; A squeezing unit which is in contact with each of the squeezing wave-type curved plates and generates a squeezing waveform according to the rotation of each of the pressure-shrinking waveform plates; And a pressure pulse wave transmitting unit connected to the other side of the pressure generating part to transfer the pressure pulse wave generated in the pressure generating part.

A second object of the present invention, the rotation motion generating unit having a plurality of rotary shafts coupled to each of the plurality of pressure pulse wave inflexion plate having a different specific shape and a plurality of motors connected to each of the rotary shafts to rotate the rotary shaft; A squeezing unit which is in contact with each of the squeezing wave-type curved plates and generates a squeezing waveform according to the rotation of each of the pressure-shrinking waveform plates; And a pressure pulse wave transmitting unit connected to the other side of the pressure generating part to transfer the pressure pulse wave generated in the pressure generating part.

In the first object of the present invention, the rotation motion generating unit, the first pressure pulse wave inflection plate connected to the rotary shaft, and the second pressure pulse wave inflection plate having a specific shape different from the first pressure pulse wave inflection plate connected to the rotation axis It may be characterized in that to rotate integrally by one motor.

In the second object of the present invention, the rotation motion generating unit has a first motor for rotating the first rotation shaft coupled to the first pressure pulse wave deflection plate, and the second rotation shaft having a specific shape different from the first pressure pulse wave deflection plate. It may be connected to and characterized in that it comprises a second motor for rotating the second rotary shaft.

In the first and second objects of the present invention, the pressure generating portion, the first pressure generating portion for contacting the first pressure waveform wave plate to generate a first pressure pulse wave in accordance with the rotation of the first pressure wave waveform plate; And a second pressure generating part contacting the second pressure waveform wave shape plate to generate a second pressure pulse wave shape according to the rotation of the second pressure wave wave shape plate, and the pressure pulse wave transmitting part is generated by the first pressure wave generation part. The first pressure waveform and the second pressure pulse generated from the second pressure generating unit may be characterized in that the transfer of the combined pressure pulse waveform.

In the first and second objects of the present invention, a first inflection portion is formed on a side surface of the first pressure waveform waveform plate, and the second pressure waveform wave plate has at least an amplitude and a phase different from that of the first curve portion. It may be characterized by having one second bent portion.

In the first and second objects of the present invention, the first inflection portion and the second inflection portion may be fixed to the rotation axis with an initial specific phase difference from each other.

In the first and second objects of the present invention, changing the specific phase difference by adjusting an initial angular position of at least one of the first pressure waveform wave plate and the second pressure wave waveform plate fixed to the rotating shaft. It can be characterized.

In the first and second objects of the present invention, the pressure generating unit and the pressure generating wave connected to at least one side of the pressure transmitting portion, the diastolic pressure control unit for controlling the pressure of the diastolic pressure of the pressure pulse waveform; further comprising a It can be characterized.

In addition, in the first and second objects of the present invention, the diastolic pressure regulating unit, a control cylinder connected to at least one side of the pressure generating unit and the pressure pulse wave transmission unit, and a control piston provided in the cylinder. It may be characterized in that the configuration.

In addition, in the first and second objects of the present invention, the diastolic pressure regulating part comprises a pneumatic pump connected to at least one of the pressure generating part and the pressure pulse wave transmitting part. can do.

In the first and second objects of the present invention, the pressure pulse amplitude control unit is connected to at least one side of the pressure pulse wave transmission unit to adjust the amplitude of the pressure pulse wave; may further include a.

In addition, in the first and second objects of the present invention, the pressure pulse wave transmission unit is composed of a flexible tube whose end is closed, and the pressure pulse amplitude adjusting unit includes a pressure roller for pressing one side of the flexible tube, and the pressure roller. It may be characterized by including a roller drive for changing the position.

In addition, in the first and second objects of the present invention, the crushing generating portion, the swelling waveform wave plate follower whose one end is in contact with the pressure sine wave curved plate; And a piston which is connected to the other end of the pressure pulse wave inflexible plate follower and is driven in the cylinder according to the rotation of the pressure pulse wave inflection plate, and one end of the pressure pulse wave transmission unit is connected to the other end of the cylinder. It may be characterized in that it is closed to deliver the pressure pulse wave generated in accordance with the driving of the piston.

Alternatively, in the first and second objects of the present invention, the squeezing unit, one side end of the swelling wave inverted plate follower in contact with the swelling wave inverted plate; And a bellows connected to the other end of the piezoelectric wave deflection plate follower to be stretched and compressed according to the rotation of the piezoelectric wave deflection plate, and one end of the piezoelectric wave wave transferring part is connected to the other side of the bellows and the other end is closed. It can be characterized in that to deliver the pressure pulse wave generated in accordance with the extension, compression of the bellows.

Further, in the first and second objects of the present invention, it is further connected to at least one side of the pressure generating portion and the pressure pulse wave transmission unit, characterized in that it further comprises a vent valve for setting the internal pressure to zero can do.

In addition, according to the first and second objects of the present invention, there is provided a pneumatic pressure sensor provided on one side of the pressure pulse wave transmission unit for measuring the air pressure in the pressure pulse wave transmission unit in real time; And a monitoring unit displaying the pressure pulse waveform in real time based on the value measured by the pneumatic sensor.

According to a third object of the present invention, in the pressure pulse reproducing method using the pressure pulse wave reproducing apparatus according to the first object, the first pressure pulse wave deflection plate having a first inflection portion on a rotation axis of the rotation motion generating unit, A second pressure waveform inflection plate having a specific shape different from the one pressure pulse waveform inflection plate and having a second inflection portion having a specific initial phase difference with the first inflection section is set, and sets the initial position of the pressure pulse generation unit, and the internal pressure of the pressure pulse wave transmission unit Setting step of adjusting; Operating a motor to rotate the first pressure waveform waveform plate and the second pressure waveform waveform plate about a rotation axis; Generating a first pressure waveform at the first pressure generation part according to the rotation of the first pressure waveform wave shape plate, and generating a second pressure waveform at the second pressure generation wave part according to the rotation of the second pressure wave shape deflection plate. ; And delivering the synthesized pressure waveform in which the pressure pulse wave transmission unit combines the first pressure pulse wave and the second pressure pulse wave together to achieve the pressure pulse wave reproducing method having the reflected wave.

The fourth object of the present invention is the pressure pulse reproducing method using the pressure pulse wave reproducing apparatus according to the above-mentioned second object, the first pressure waveform wave plate having a first bent portion on the first rotation axis of the rotation motion generating unit And mounting a second pressure pulse wave inflexion plate having a specific shape different from the first pressure pulse wave inflection plate to the second rotation axis and having a second inflection portion having a specific initial phase difference with the first bending part and setting an initial position of the pressure generating part. And setting step of adjusting the internal pressure of the pressure pulse wave transmission unit; Operating the first motor to rotate the first pressure waveform waveform plate relative to the first axis of rotation, and operating the second motor to rotate the second pressure waveform waveform plate relative to the second axis of rotation; Generating a first pressure waveform at the first pressure generation part according to the rotation of the first pressure waveform wave shape plate, and generating a second pressure waveform at the second pressure generation wave part according to the rotation of the second pressure wave shape deflection plate. ; And delivering the synthesized pressure waveform in which the pressure pulse wave transmission unit combines the first pressure pulse wave and the second pressure pulse wave together to achieve the pressure pulse wave reproducing method having the reflected wave.

In addition, in the third and fourth objects of the present invention, the first inflection portion and the second inflection portion have an initial specific phase difference with each other, and the first pressure waveform inflection plate and the second pressure waveform inflection are fixed to a rotation axis. The specific phase difference may be changed by adjusting an initial angular position of at least one of the plates.

In addition, in the third and fourth objects of the present invention, the pneumatic sensor provided on one side of the pressure pulse wave transmission unit measures the air pressure in the pressure pulse wave transmission unit in real time, the monitoring unit based on the value measured by the pressure sensor The piezoelectric waveform may be displayed in real time.

And in the third and fourth objects of the present invention, the diastolic pressure control unit connected to at least one side of the indentation generating unit and the indentation waveform transmission unit by setting the diastolic pressure peaks; further comprising a; Can be.

And, according to the third and fourth objects of the present invention, the step of setting the amplitude of the pressure pulse by adjusting the pressure amplitude amplitude control unit connected to at least one side of the pressure generation portion and the pressure pulse wave transmission unit; It can be characterized.

According to one embodiment of the present invention, by generating a pressure waveform based on the pressure pulse waveform plate, it is compact, portable and easy to maintain, it has an effect that can be implemented quickly and the pressure pulse waveform accurately.

In addition, according to an embodiment of the present invention, the diastolic pressure of the pressure pulse waveform can be adjusted by the diastolic pressure pulse control unit, and a plurality of pressure pulse waveform plates are mounted on a single motor and a rotating shaft with a plurality of specific shape of the pressure pulse waveforms. A squeeze wave generation unit and a sine wave wave transmission unit are installed on each inflection plate to generate a squeeze waveform that accurately reproduces the forward wave and the reflected wave by driving a single motor. By changing the phase difference between the plates, it has the effect of controlling the time interval between the forward wave and the reflected wave that can vary by age group.

On the other hand, the effect obtained in the present invention is not limited to the above-mentioned effects, other effects that are not mentioned will be clearly understood by those skilled in the art from the following description. Could be.

The following drawings, which are attached to this specification, illustrate one preferred embodiment of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1A is a graph showing aortic root pressure, intraventricular pressure, left atrium pressure, and left ventricular volume for cardiac operation;
1b is a table summarizing the duration of left atrial contraction, left ventricular static contraction, release, static relaxation, rapid inflow, cardiac arrest, respectively,
Figure 1c is a schematic diagram showing each part of the human heart,
FIG. 1D is a left ventricular pressure and volume graph (left graph) and left intraventricular pressure as cardiac arrest, complete ventricular valve close, left ventricular contraction, aortic valve open, release, aortic valve close, static relaxation, left ventricular valve open And volume graphs,
Figure 1e is a schematic diagram showing the heart, upward aorta, subclavian artery, descending thoracic aortic aneurysm, pulmonary artery of the human body,
1f is a central pressure chart in the aortic arch,
2 is a schematic diagram of a pressure pulse wave reproducing apparatus having a reflected wave according to an embodiment of the present invention;
3 is a graph of pressure pulse waveform generated by the pressure pulse wave reproducing apparatus having a reflected wave according to an embodiment of the present invention;
4A is a piezoelectric waveform graph showing a piezoelectric pulse and a diastolic reference pulse generated by a piezoelectric waveform reproducing apparatus having a reflected wave according to an embodiment of the present invention;
FIG. 4B is a shape of a first pressure waveform inflection plate having one first inflection section and a second pressure waveform inflection plate having two second inflection sections designed to implement the pressure waveform of FIG. 4A;
5A is a perspective view of a pressure pulse wave reproducing apparatus having a reflected wave according to an embodiment of the present invention;
5B is a perspective view of a pressure pulse wave reproducing apparatus having a reflected wave according to another embodiment of the present invention;
Figure 6a is a side cross-sectional view of the pressure pulse wave reproducing apparatus having a reflected wave composed of a pressure generating part with a piston and a cylinder in accordance with an embodiment of the present invention,
6B is a side cross-sectional view of a piezoelectric wave type reproducing apparatus having a reflected wave having a bellows generating portion formed by bellows according to an embodiment of the present invention;
6C is a side cross-sectional view of a pressure pulse wave reproducing apparatus having a reflected wave having a pressure pulse amplitude adjusting unit according to an embodiment of the present invention;
Figure 6d is a side cross-sectional view of the pressure pulse wave reproducing apparatus having a diastolic pressure pulse control unit according to an embodiment of the present invention.

Objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments associated with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and to fully convey the spirit of the invention to those skilled in the art.

In the present specification, when a component is mentioned to be on another component, it means that it may be formed directly on the other component or a third component may be interposed therebetween. In addition, in the drawings, the thickness of the components are exaggerated for the effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional and / or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Therefore, the shape of the exemplary diagram may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in forms generated according to manufacturing processes. For example, the region shown at right angles may be rounded or have a predetermined curvature. Thus, the regions illustrated in the figures have properties, and the shape of the regions illustrated in the figures is intended to illustrate a particular form of region of the device and is not intended to limit the scope of the invention. Although terms such as first and second are used to describe various components in various embodiments of the present specification, these components should not be limited by such terms. These terms are only used to distinguish one component from another. The embodiments described and illustrated herein also include complementary embodiments thereof.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, the words 'comprises' and / or 'comprising' do not exclude the presence or addition of one or more other components.

In describing the specific embodiments below, various specific details are set forth in order to explain the invention more specifically and to help understand. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some cases, it is mentioned in advance that parts of the invention which are commonly known in the description of the invention and which are not highly related to the invention are not described in order to prevent confusion in explaining the invention without cause.

Hereinafter, the configuration, function and operation method of the pressure pulse wave reproducing apparatus 100 having the reflected wave according to an embodiment of the present invention will be described. First, Figure 2 shows a schematic diagram for showing the basic configuration of the pressure pulse wave reproducing apparatus 100 having a reflected wave according to an embodiment of the present invention. 3 illustrates a screen of the monitoring unit 40 displaying the pressure pulse waveform generated by the pressure pulse waveform reproducing apparatus 100 having the reflected wave according to the exemplary embodiment of the present invention.

As shown in FIG. 2, the pressure pulse wave reproducing apparatus 100 having the reflected wave according to the exemplary embodiment of the present invention basically includes a rotation motion generator 10, a pressure pulse generator 20, and a pressure pulse wave transmitter. It can be seen that it can be composed of (30) and the like.

The rotation motion generating unit 10 includes a rotation shaft 13, a pressure pulse wave deflection plate 11, and a motor 14 to rotate the pressure pulse wave deflection plate 11 connected to the rotation shaft 13 by the motor 14. It is configured to. In addition, one side of the pressure generating section 20 is in contact with the pressure sine wave plate 11 to generate a pressure swell wave according to the rotation of the pressure sine wave plate (11). In addition, the piezoelectric waveform transmission unit 30 is connected to the other side of the piezoelectric generating unit 20 to transmit the piezoelectric waveform generated from the piezoelectric generating unit 20.

In the present invention, as described later, in order to realize a pressure wave having a contraction wave and a reflected wave like the actual pressure wave, the shape of a plurality of pressure pulse wave inflection plates 11 each having an inflection portion 12 is applied.

Figure 4a shows the radial artery swelling waveform. As shown in FIG. 4A, the actual pressure pulse waveform is a forward wave generated by contraction of the heart and a reflected wave generated by the abdominal aortic bifurcation, and a synthesized wave generated by the synthesis of the forward wave and the reflected wave. Systole) will be formed. In order to reproduce the forward wave, the reflected wave and the synthesized wave, the side surfaces of the plurality of pressure pulse wave inflexible plates 11 of the present invention are spaced apart from each other by a certain angle in the circumferential direction, and include an inflection portion 12 having different heights. It can be seen that it is configured. FIG. 4B shows a first pressure waveform wave plate 11-1 having one first curve portion 12-1 and two second curves 12-2 designed to implement the pressure waveform of FIG. 4A. The shape of the second pressure pulse wave curved plate 11-2 having the shape is illustrated.

Accordingly, the first pressure generating portion 20-1 which is driven in contact with the outer surface of the first pressure wave shape bending plate 11-1 having the first bending portion 12-1 has a contact surface with the first pressure wave shape bending plate. A second wave having a second inflection portion 12-2 is independently reproduced by passing the first inflection portion 12-1 in (11-1) and reproducing a forward wave of a pressure waveform (first pressure waveform). In the second pressure generating portion 20-2 which is driven in contact with the outer surface of the pressure pulse wave bending plate 11-2, the contact surface of the second pressure wave bending plate 11-2 has the second bending portion 12-2. By reproducing the reflected wave (second pressure pulse waveform), the pressure pulse wave transmission unit 30 reproduces the synthesized pressure pulse waveform in which the first pressure pulse waveform and the second pressure pulse waveform are synthesized.

As shown in FIG. 4B, a first inflection portion 12-1 is formed at a side surface of the first pressure waveform inflection plate 11-1, and the second pressure waveform inflection plate 11-2 is a first inflection. It can be seen that it has two second curved portions 12-2 having an amplitude and a phase different from that of the portion 12-1. The first bend portion 12-1 and the second bend portion 12-2 have initial specific phase differences with each other.

The time interval between the forward wave and the reflected wave in the piezoelectric waveform of FIG. 4A has a characteristic of varying according to disease or age. In an embodiment of the present invention, the time between the forward wave and the reflector of the piezoelectric waveform is changed by changing an initial specific phase difference between the first and second inflections 12-1 and 12-2 in order to reproduce the various indentation waveforms. The distance t can be controlled.

That is, the specific phase difference may be changed by adjusting the initial angular position of at least one of the first pressure pulse wave deflection plate 11-1 and the second pressure pulse wave deflection plate 11-2 fixed to the rotary shaft 13. Will be.

Hereinafter, the configuration of the pressure pulse wave reproducing apparatus 100 having the reflected wave according to the embodiment of the present invention will be described in detail. First, FIG. 5A illustrates a configuration diagram of a pressure pulse wave reproducing apparatus 100 having a reflected wave according to an exemplary embodiment of the present invention. Figure 5b shows a block diagram of a pressure pulse wave reproducing apparatus 100 having a reflected wave according to another embodiment of the present invention,

6A is a side cross-sectional view of the pressure sine wave type reproducing apparatus 100 having a reflected wave in which the pressure generating part 20 is formed of a piston 25 and a cylinder 24 according to one embodiment of the present invention. 6B is a side cross-sectional view of the piezoelectric wave type reproducing apparatus 100 having a reflected wave in which the piezoelectric generator 20 is formed by the bellows 26 according to an exemplary embodiment of the present invention. FIG. 6C is a side cross-sectional view of the pressure pulse wave reproducing apparatus 100 having a reflected wave having the pressure pulse amplitude adjusting unit 60 according to an embodiment of the present invention. FIG. 6D is a side cross-sectional view of the pressure pulse wave reproducing apparatus 100 having a reflected wave having the diastolic pressure pulse control unit 50 according to an embodiment of the present invention.

As shown in FIG. 5A, the rotation motion generating unit 10, the piezoelectric generating unit 20, and the piezoelectric wave transmitting unit 30 of the piezoelectric waveform reproducing apparatus 100 according to an exemplary embodiment of the present invention are monitored. 40 can be seen that all will be installed on the base frame (2).

As shown in Figure 5a, the rotation motion generating unit 10 according to an embodiment of the present invention is connected to one rotary shaft 13, a plurality of pressure pulse wave inflexion plate 11 having a different specific shape It is rotated integrally by one motor (14). That is, the rotation motion generating unit 10 according to an embodiment of the present invention is connected to the first pressure pulse wave shape plate 11-1 connected to the rotary shaft 13 and the same rotation axis 13, and has the first pressure wave waveform inflection. The second pressure pulse wave curved plate 11-2 having a specific shape different from the plate 11-1 is integrally rotated by one motor 14.

In addition, a first inflection portion 12-1 is formed at a side surface of the first pressure waveform wave shape plate 11-1, and the second pressure waveform wave shape plate 11-2 is formed in the first inflection portion 12-1. It has at least one second inflection section 12-2 having an amplitude and a phase different from that of each other. In addition, the first inflection portion 12-1 and the second inflection portion 12-2 are fixed to the rotation shaft 13 with an initial specific phase difference from each other.

And in one embodiment of the present invention by adjusting the initial angular position of at least one of the first pressure waveform wave plate 11-1 and the second pressure wave waveform plate 11-2 fixed to the rotary shaft 13 The specific phase difference between the first curved portion 12-1 and the second curved portion 12-2 may be changed. By adjusting the specific phase difference, it is possible to adjust and control the time distance t between the forward wave and the reflected wave of the pressure pulse waveform.

The piezoelectric generator 20 according to the exemplary embodiment of the present invention is in contact with each of the plurality of piezoelectric waveform inverted plates 11 to generate a piezoelectric waveform according to the rotation of the respective piezoelectric waveform inverted plate 11.

That is, the pressure generating part 20 is in contact with the first pressure wave shape bending plate 11-1 and generates the first pressure wave to generate the first pressure wave shape as the first pressure wave shape bending plate 11-1 rotates. A second pressure generating portion contacting the portion 20-1 and the second pressure waveform curved plate 11-2 to generate a second pressure pulse waveform according to the rotation of the second pressure waveform curved plate 11-2 ( 20-2).

In addition, the pressure pulse wave transmission unit 30 is a synthetic pressure pulse in which the first pressure waveform generated by the first pressure generator 20-1 and the second pressure waveform generated by the second pressure generator 20-2 are combined. To deliver the waveform.

And as shown in Figure 5b, the piezoelectric waveform reproducing apparatus 100 according to another embodiment of the present invention also the rotation motion generating unit 10, the piezoelectric generating unit 20, the piezoelectric wave transmission unit 30, It can be seen that the monitoring unit 40 is all installed on the base frame (2).

As shown in FIG. 5B, the rotation motion generating unit 10 according to another embodiment of the present invention may include a plurality of rotation shafts 13-13 coupled to each of the plurality of pressure pulse wave deflection plates 11 having different specific shapes. 1, 13-2 and a plurality of motors 14-1 and 14-2 connected to the rotary shafts 13-1 and 13-2 to rotate the rotary shafts 13-1 and 13-2, respectively. It is composed. That is, the rotation motion generating unit 10 according to another embodiment of the present invention includes a first motor 14-14 for rotating the first rotation shaft 13-1 to which the first pressure pulse wave deflection plate 11-1 is coupled. 1) and a second motor 14-2 having a specific shape different from that of the first pressure pulse wave deflection plate 11-1, connected to the second rotary shaft 13-2, and rotating the second rotary shaft 13-2. It may be configured to include).

In addition, a first inflection portion 12-1 is formed at a side surface of the first pressure waveform wave shape plate 11-1, and the second pressure waveform wave shape plate 11-2 is formed in the first inflection portion 12-1. It has at least one second inflection section 12-2 having an amplitude and a phase different from that of each other. The first bend 12-1 and the second bend 12-2 have an initial specific phase difference and are fixed to each of the first and second rotation shafts 13-1 and 13-2. .

In addition, in another embodiment of the present invention, the first pressure waveform waveform plate 11-1 fixed to the first rotary shaft 13-1 and the second pressure waveform waveform plate fixed to the second rotary shaft 13-2 ( It is possible to change the specific phase difference between the first inflection section 12-1 and the second inflection section 12-2 by adjusting the initial angular position of at least one of 11-2). By adjusting the specific phase difference, it is possible to adjust and control the time distance t between the forward wave and the reflected wave of the pressure pulse waveform.

According to another embodiment of the present invention, the pressure generating part 20 is in contact with each of the plurality of pressure pulse wave deflection plates 11 as described above, and according to the rotation of each pressure pulse wave deflection plate 11. It will generate a pressure pulse waveform.

That is, the pressure generating part 20 is in contact with the first pressure wave shape bending plate 11-1 and generates the first pressure wave to generate the first pressure wave shape as the first pressure wave shape bending plate 11-1 rotates. A second pressure generating portion contacting the portion 20-1 and the second pressure waveform curved plate 11-2 to generate a second pressure pulse waveform according to the rotation of the second pressure waveform curved plate 11-2 ( 20-2).

In addition, the pressure pulse wave transmission unit 30 is a synthetic pressure pulse in which the first pressure waveform generated by the first pressure generator 20-1 and the second pressure waveform generated by the second pressure generator 20-2 are combined. To deliver the waveform.

As shown in Figs. 5A, 5B and 6A, the squeezing unit 20 may include a roller 22, a squeezing wave plate follower 21, a piston 25, a cylinder 24, and the like. Can be. The roller 22 is provided at one end of the follower 21 and is in contact with the side surfaces of each of the first pressure waveform waveform plate 11-1 and the second pressure waveform waveform plate 11-2.

A piston 25 is connected to the other end of the pressure pulse wave deflection plate follower 21, and the piston 25 is reciprocally driven in the cylinder 24 according to the rotation of the pressure pulse wave deflection plate 11. In addition, the roller 22 of the pressure pulse wave deflection plate follower 21 further includes an elastic means 23 for applying a restoring force to the piston 25 so that the contact with the side surface of the pressure pulse wave deflection plate 11 is maintained. Can be configured.

In addition, the pressure pulse wave transmission unit 30 may be composed of a flexible tube 31, the discharge end end of the first pressure generating part 20-1 and the discharge end end of the second pressure generating part 20-2. The parts join each other and are connected to this confluence point. One end of the pressure pulse wave transmission unit 30 is connected to the confluence point, and the other end is composed of a closing portion 31 is generated by the driving of the piston 25 of the first pressure generating part 20-1 The first pressure pulse waveform and the second pressure pulse waveform generated by the driving of the piston 25 of the second pressure pulse generator 20-2 are combined to transmit the combined pressure pulse waveform. And the pressure pulse wave transmission unit 30 may be mounted on the wrist-like holder in order to easily deliver the synthetic pressure pulse wave to the user. In addition, it can be installed on the human body model (1) having a wrist shape.

In addition, one side of the cylinder 24 is provided with a vent valve 27 for exhausting the air in the cylinder 24. By such a vent valve 27 it is possible to zero the internal pressure.

Then, the pneumatic pulse wave transmission unit 30 is provided with a pneumatic sensor 33 to measure the air pressure in the pressure pulse wave transmission unit 30 in real time. In addition, the monitoring unit 40 displays the pressure pulse waveform in real time based on the value measured by the pneumatic sensor 33. In addition, the monitoring unit integrates the heart rate (bpm), systolic blood pressure [mmHg], diastolic blood pressure [mmHg], and the systolic pressure based on values measured by the pneumatic sensor. Mean blood pressure corresponding to the average of may be calculated and displayed together.

In addition, in one embodiment of the present invention, the operation control unit 41 to turn on / off the operation of the motor 14, to control the motor 14 to adjust the rotational speed of the pressure pulse wave deflection plate (11-1, 11-2) ), And an exhaust switch 43 for controlling the operation of the vent valve 27.

In addition, in one embodiment of the present invention, each of the first pressure generating part 20-1 and the second pressure generating part 20-2 may be formed of a bellows 26 rather than a piston 25 and a cylinder 24. It may be. Each of the first and second pressure generating parts 20-1 and 20-2 includes a roller 22, a pressure pulse wave deflection plate follower 21, a bellows 26, and the like, as shown in FIG. 6B. Can be. The roller 22 is provided at one end of the pressure pulse wave deflection plate follower 21 and is in contact with the side surfaces of the pressure pulse wave deflection plate 11-1 and 11-2. In addition, the bellows 26 is connected to the other end of the pressure pulse wave deflection plate follower 21 to be extended and compressed according to the rotation of the pressure pulse wave deflection plate 11.

In addition, it can be seen that the diastolic pressure pulse control unit 50 is provided at one side of the pressure pulse wave transmission unit 30 so that the pressure inside the cylinder 24 and the pressure pulse wave transmission unit 30 can be changed and adjusted.

This diastolic pressure control unit 50 is able to adjust the size of the pressure that is the difference between the diastolic reference pressure value and the diastolic reference pressure value and the pressure value in the systolic system in the pressure pulse waveform shown in Figure 6d do.

This diastolic pressure control unit 50 may be configured to include a control piston 51, a control cylinder 52 and a pneumatic pump 53, as shown in Figure 6d. The adjusting cylinder 52 is installed on at least one side of the pressure generating part 20 and the pressure pulse wave transmitting part 30, and the adjusting piston 51 is built in the adjusting cylinder 52 and the pneumatic pump 53. By adjusting the position of the adjustment piston 51 by the inside of the cylinder 24, the pressure within the pressure pulse wave transmission unit 30 can be variable, adjustable. In addition, the user through the pressure control unit 42 can control the pneumatic pump 53 to manually and automatically adjust the size of the pressure pulse diaphragm pressure.

In addition, in one embodiment of the present invention is connected to at least one side of the pressure pulse wave transmission unit, it may be configured to include a pressure pulse amplitude control unit 60 for adjusting the amplitude (size) of the pressure pulse waveform.

 As shown in Figure 6c, the pressure pulse amplitude adjusting unit 60 according to an embodiment of the present invention, the pressure roller 61 for pressing the one end of the flexible tube 32, the other end is composed of a closing portion (32) And it can be seen that it can be configured to include a roller drive unit 62 for driving the pressure roller so that the position of the pressure roller 61 is variable.

That is, when the pressure roller pressurizing the flexible tube 32 changes the position of the pinch grip by the roller driving unit, the total volume of the internal air is changed based on the position of the grip. Therefore, when the total volume of air present inside is changed, the rate of increase of the pressure of the compressible air increases when compressing and tensioning the cylinder 24 and the piston 25, thereby controlling the amplitude of the rolling mill. .

First, the pressure pulse reproducing method using the pressure pulse wave reproducing apparatus 100 according to an embodiment of the present invention, first, the first having the first inflection portion 12-1 on the rotation axis 13 of the rotation motion generating unit The first inflection waveform 11-1 and the second inflection portion 12 having a specific shape different from that of the first inflection waveform 11-1 and having a specific initial phase difference with the first inflection portion 12-1. -2) is equipped with a second pressure waveform wave plate 11-2, and set the initial position of the first pressure generation unit 20-1 and the second pressure generation unit 20-2, and transmits the pressure pulse wave The setting step of adjusting the internal pressure of the unit 30 is performed.

Then, the motor 14 is operated to rotate the first pressure waveform waveform plate 11-1 and the second pressure waveform waveform plate 11-2 with respect to the rotation axis 13.

As the first pressure waveform inflection plate 11-1 rotates, the first pressure pulse generation unit 20-1 generates a first pressure pulse wave, and the second pressure pulse waveform inflection plate 11-2 rotates. Accordingly, the second pressure generation waveform is generated in the second pressure generation unit 20-2.

In addition, the pressure pulse wave transmission unit 30 transmits the combined pressure pulse wave waveform in which the first pressure pulse wave and the second pressure pulse wave are combined.

As mentioned above, the first bent portion 12-1 and the second bent portion 12-2 have an initial specific phase difference from each other and are fixed to the rotation shaft 13 by the first pressure pulse wave curved plate 11-. It is possible to change the specific phase difference by adjusting the initial angular position of at least one of 1) and the second pressure waveform waveform plate (11-2). By changing and adjusting this specific phase difference, it is possible to control the time distance t between the forward wave and the reflected wave.

In addition, the pneumatic sensor provided on one side of the pressure pulse wave transmission unit 30 measures the air pressure in the pressure pulse wave transmission unit 30 in real time, the monitoring unit to display the pressure pulse wave in real time based on the value measured by the pneumatic sensor do.

Then, by adjusting the diastolic pressure control unit 50 connected to one side of the pressure pulse wave transmission unit 30, the diastolic pressure can be set, and the pressure pulse amplitude control unit 60 connected to one side of the pressure pulse wave transmission unit 30 is adjusted. You can set the amplitude of the pressure.

In the method of reproducing a piezoelectric waveform using the piezoelectric waveform reproducing apparatus 100 according to another embodiment described above, first, the first inflection portion 12-is formed on the first rotation shaft 13-1 of the rotation motion generating unit 10. 1) mounting the first pressure waveform wave plate 11-1 having a specific shape different from the first pressure waveform wave plate 11-1 on the second rotary shaft 13-2; 12-1) and the second pressure waveform wave plate 11-2 having the second inflection portion 12-2 having a specific initial phase difference, and the initial positions of the pressure pulse generators 20-1 and 20-2. To set, to proceed with the setting step of adjusting the internal pressure of the pressure pulse wave transmission unit 30.

Then, the first motor 14-1 is operated to rotate the first pressure pulse wave deflection plate 11-1 with respect to the first rotation shaft 13-1, and also the second motor 14-2 is operated. The second pressure pulse wave curved plate 11-2 is rotated with respect to the second rotation shaft 13-2.

As the first pressure waveform inflection plate 11-1 rotates, the first pressure pulse generation unit 20-1 generates a first pressure pulse wave, and the second pressure pulse waveform inflection plate 11-2 rotates. Accordingly, the second pressure generation waveform is generated in the second pressure generation unit 20-2. In addition, the pressure pulse wave transmission unit 30 transmits the synthetic pressure pulse wave in which the first pressure pulse wave and the second pressure pulse wave are combined.

As mentioned above, the first bent portion 12-1 and the second bent portion 12-2 have an initial specific phase difference with each other, and have a first pressure waveform inflection fixed to the first rotation shaft 13-1. The specific phase difference may be changed by adjusting an initial angular position of at least one of the two pressure pulse wave inflexion plates 11-2 fixed to the plate 11-1 and the second rotation shaft 13-2. By changing and adjusting this specific phase difference, it is possible to control the time distance t between the forward wave and the reflected wave.

In addition, the pneumatic pressure sensor 33 provided on one side of the pressure pulse wave transmitting unit 30 measures the air pressure in the pressure pulse wave transmitting unit 30 in real time, and the monitoring unit 40 measures the value measured by the pneumatic sensor 33. Based on the pressure pulse waveform is displayed in real time.

And, by adjusting the diastolic pressure control section 50 connected to one side of the pressure pulse wave transmission unit 30, the diastolic pressure can be set, and the pressure pulse amplitude control unit 60 connected to one side of the pressure pulse wave transmission unit 30 is adjusted. You can set the amplitude of the pressure.

In addition, the above-described apparatus and method may not be limitedly applied to the configuration and method of the above-described embodiments, but the embodiments may be selectively combined in whole or in part in each of the embodiments so that various modifications may be made. It may be configured.

1: human model
2: base frame
6: artificial heart
10: rotating motion generating unit
11: Pressure Waveform Inversion Plate
11-1: First pressure waveform wave plate
11-2: 2nd pressure pulse wave distortion plate
12: inflection part
12-1: First inflection section
12-2: Second inflection section
13: rotary shaft
13-1: First rotating shaft
13-2: second rotating shaft
14: motor
14-1: 1st motor
14-2: the second motor
20: pressure generating part
20-1: First pressure generating part
20-2: second pressure generating part
21: Pulse wave inflection plate follower
It is a roller 22
23: elastic means
24: cylinder
25: piston
It is bellows 26
27: vent valve
30: pressure wave transmission unit
31: Flexible tube
32: Closed part
33: pneumatic sensor
40: monitoring part
41: operation control unit
42: pressure control unit
43: exhaust switch
50: diastolic pressure control unit
51: adjustment piston
52: cylinder for adjustment
53: pneumatic pump
60: pressure amplitude control unit
61: pressure roller
62: roller drive unit
100: pressure pulse wave reproducing apparatus

Claims (23)

In the pressure pulse wave reproducing apparatus,
A rotation motion generating unit which is connected to one rotation shaft and rotates the first pressure pulse wave inflexion plate and the second pressure pulse wave inflection plate integrally by one motor;
A first pressure generating portion that is in contact with the first pressure waveform waveform plate and generates a first pressure waveform as the first pressure pulse waveform plate is rotated, and the second pressure waveform waveform is in contact with the second pressure waveform wave plate. A second pressure generating portion for generating a second pressure waveform according to the rotation of the inflection plate, a pressure wave waveform inflection plate follower whose one end is in contact with the first pressure pulse waveform inflection plate, and the pressure pulse A pulsation generator connected to the other end of the corrugated wave plate follower and including a bellows extended and compressed according to rotation of the first pressure pulse wave form curved plate and the second pressure wave form wave shaped plate;
One side is connected to the other side of the pressure generating portion to deliver the synthetic pressure pulse wave combined with the first pressure pulse wave and the second pressure pulse wave, or one end is connected to the other side of the bellows, the other end is closed, the A pressure pulse wave transmission unit configured to transfer the first pressure pulse wave and the second pressure pulse wave wave generated according to extension and compression; And
A control cylinder connected to at least one side of the pressure generating part and the pressure pulse wave transmitting part, a control piston provided in the cylinder, the pressure generating part, and at least one side of the pressure pulse wave transmitting part. Diastolic pressure control unit configured to include a pneumatic pump
Including,
The diastolic pressure control unit,
The pressure pulse wave having the reflected wave, characterized in that for controlling the position of the piston by the pneumatic pump to vary the pressure in the cylinder, the size of the diastolic pressure pulses of the first pressure pulse waveform and the second pressure pulse waveform. Reproducing device.
delete delete delete delete The method of claim 1,
A first curved portion is formed on a side surface of the first pressure waveform wave plate, and the second pressure wave waveform plate has at least one second wave portion having a different amplitude and phase than the first curve wave portion. Pressure pulse waveform reproducing apparatus having a.
The method of claim 6,
And the first curved portion and the second curved portion have an initial specific phase difference from each other and are fixed to a rotating shaft.
The method of claim 7, wherein
The pressure pulse wave reproducing apparatus,
The pressure pulse wave reproducing apparatus having a reflected wave, characterized in that to change a specific phase difference by adjusting the initial angular position of at least one of the first pressure pulse wave deflection plate and the second pressure pulse wave deflection plate fixed to the rotation axis.
delete delete delete The method of claim 1,
The pressure pulse wave reproducing apparatus,
A pressure amplitude amplitude control unit connected to at least one side of the pressure pulse wave transmission unit and configured to adjust amplitudes of the first pressure pulse wave and the second pressure pulse wave.
Pressure pulse waveform reproducing apparatus having a reflected wave, characterized in that it further comprises.
The method of claim 12,
The pressure pulse wave transmission unit is composed of a flexible tube end is closed,
The pressure amplitude control unit,
And a pressure roller for pressing the one side of the flexible tube, and a roller driving unit for changing the position of the pressure roller.
The method of claim 1,
The indentation generating unit,
A piston connected to the other end of the pressure pulse wave inflexion plate follower and driven in a cylinder according to rotation of the first pressure pulse wave inflection plate and the second pressure pulse wave inflection plate;
More,
The pressure pulse wave transmission unit,
One end is connected to the other end of the cylinder, the other end is closed, the pressure pulse waveform reproducing apparatus having a reflected wave, characterized in that for transmitting the first pressure pulse wave and the second pressure pulse wave generated by the driving of the piston.
delete The method of claim 1,
The pressure pulse wave reproducing apparatus,
A vent valve connected to at least one side of the pressure generating part and the pressure pulse wave transmitting part to set the internal pressure to zero.
Pressure pulse waveform reproducing apparatus having a reflected wave, characterized in that it further comprises.
The method of claim 1,
The pressure pulse wave reproducing apparatus,
A pneumatic sensor provided at one side of the pressure pulse wave transmission unit to measure the air pressure in the pressure pulse wave transmission unit in real time; And
A monitoring unit for displaying the pressure pulse waveform in real time based on the value measured by the pneumatic sensor
Pressure pulse waveform reproducing apparatus having a reflected wave, characterized in that it further comprises. delete delete delete delete delete delete

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