CN116115207A - Sphygmomanometer model simulation test device - Google Patents

Abstract

The invention discloses a sphygmomanometer model simulation test device, which belongs to the technical field of quantitative measurement, and comprises: the device comprises a controller unit, a display screen, keys, a communication interface, a voice coil motor, an air bag, a first inflator pump, a first air release valve, a pressure sensor, a second inflator pump, an air balance tank and a second air release valve; the voice coil motor, the air bag, the first inflator pump, the first air release valve and the main pneumatic module formed by the pressure sensor are used for realizing performance verification of the single oscillography noninvasive automatic measurement sphygmomanometer. The auxiliary pneumatic system composed of the second inflator pump, the gas balance tank and the second air release valve is mainly used for matching with the main pneumatic system to realize verification of the novel double-cuff double-catheter noninvasive automatic measurement sphygmomanometer. Therefore, the invention solves the technical problem of how to develop a noninvasive automatic measuring sphygmomanometer based on the blood pressure signals of a real human body.

Description

Sphygmomanometer model simulation test device

Technical Field

The invention relates to the technical field of quantitative measurement, in particular to a sphygmomanometer model simulation test device.

Background

Blood pressure is an important physiological parameter reflecting whether the cardiovascular function of a human body is normal or not, and accurate measurement of blood pressure has important significance for preventing cardiovascular diseases. The blood pressure change condition of a patient can be effectively evaluated through long-term and instant monitoring of the blood pressure by the blood pressure detection device, so that the blood pressure detection device has important clinical significance.

The blood pressure detection device is used as a main blood pressure measuring tool, and the accuracy of the blood pressure detection device needs to be calibrated by using a metering calibration device so as to ensure the reliability of the detection result. Generally, a medical structure generally uses a blood pressure simulator to measure and calibrate a blood pressure monitoring device, and the blood pressure simulator can generate corresponding oscillation waves according to a set blood pressure value to simulate the blood pressure generation process of a human body. That is, the calibration of the blood pressure indication value in the blood pressure monitor by the blood pressure simulator is actually to evaluate the blood pressure measurement characteristic of the blood pressure monitor by using several calibration curves built in the blood pressure simulator, i.e. blood pressure sample data.

Based on this, chinese patent CN112823739B discloses a blood pressure detection device, a blood pressure detection system and a blood pressure monitoring method. The blood pressure monitoring method comprises the following steps: acquiring blood pressure detection data of a user, and synchronously acquiring action detection data of the user; generating a first blood pressure curve changing along with time according to the blood pressure detection data, and obtaining states of the user in different time periods according to the action detection data; the status is marked on the first blood pressure curve. The blood pressure detection device can intuitively acquire the relation between the state and the blood pressure detection data, and improves the use experience of a user.

However, current blood pressure simulators typically employ an overly simplified physical model; however, the existing blood pressure sample data may not be fully suitable for a blood pressure monitoring device designed based on domestic human blood pressure data; for the existing blood pressure simulator, the blood pressure sample data designed based on the physical model is different in model building method, and has no unified standard, so that the traceability relationship between the blood pressure sample data and the real human blood pressure indication value is difficult to build.

Disclosure of Invention

Based on the above, it is necessary to develop a non-invasive automatic blood pressure meter based on the blood pressure signal of the real human body, and to provide a blood pressure meter model simulation test device.

A sphygmomanometer model simulation test device, comprising: the device comprises a controller unit, a display screen, keys, a communication interface, a voice coil motor, an air bag, a first inflator pump, a first air release valve, a pressure sensor, a second inflator pump, an air balance tank and a second air release valve. The controller unit is respectively and electrically connected with the display screen, the keys and the communication interface; the method comprises the steps of establishing a real human body blood pressure database based on real human body blood pressure indication values acquired by an external desk type mercury column sphygmomanometer, constructing a blood pressure sample curve, storing and converting the blood pressure sample curve through an external PC, and transmitting the blood pressure sample curve into the controller unit through the communication interface. The voice coil motor, the air bag and the first air release valve are connected with the pressure sensor through an air path hose; the second inflator pump, the gas balance tank and the second air release valve are connected through an air path hose; the voice coil motor, the first inflator pump, the air release valve, the pressure sensor and the second inflator pump are electrically connected with the controller unit.

Further, the voice coil motor has a cylinder block and a piston member.

Further, the piston member is movably sleeved in the cylinder block.

Further, the airbag has a left fixing member, a left airbag, a right airbag, and a right fixing member.

Still further, the left securing member is coupled to the piston member.

Further, the left airbag is connected with the left fixing piece.

Further, the left air bag and the right air bag are both in semicircular structures.

Further, the left air bag and the right air bag are connected through small holes.

Further, the right airbag is connected with the right fixing member.

Further, the right fixing piece is provided with an air passage interface.

In summary, the blood pressure meter model simulation test device is provided with a controller unit, a display screen, keys, a communication interface, a voice coil motor, an air bag, a first inflator pump, a first air release valve, a pressure sensor, a second inflator pump, an air balance tank and a second air release valve respectively; the voice coil motor, the air bag, the first inflator pump, the first air release valve and the main pneumatic module formed by the pressure sensor are used for realizing performance verification of the single oscillography noninvasive automatic measurement sphygmomanometer. The auxiliary pneumatic system composed of the second inflator pump, the gas balance tank and the second air release valve is mainly used for matching with the main pneumatic system to realize verification of the novel double-cuff double-catheter noninvasive automatic measurement sphygmomanometer. The voice coil motor, the air bag, the first air release valve and the pressure sensor are connected through an air path hose; the second inflator pump, the gas balance tank and the second air release valve are also connected through an air path hose; the voice coil motor, the first air pump, the second air pump, the first air release valve, the second air release valve and the pressure sensor are all electrically connected with the controller unit. The pressure sensor is required to collect the pressure in the gas circuit of the calibrating device. The gas balance tank is used for containing gas in the gas path and maintaining and stabilizing the pressure in the gas path system. When the air leakage rate of the calibrating device is too high due to the air tightness problem, the air balance tank can maintain the stable pressure of the air path without generating larger fluctuation, and the continuous operation of metering calibration is ensured. Different from the existing noninvasive blood pressure simulator, the blood pressure sample curve built in the blood pressure meter model simulation test device is based on the acquired real human blood pressure data, and can realize the metering verification of the novel double-cuff double-catheter noninvasive automatic measurement blood pressure meter while realizing the noninvasive automatic measurement blood pressure meter verification based on the single oscillography principle. Therefore, the invention discloses a sphygmomanometer model simulation test device which solves the technical problem of how to develop a noninvasive automatic measurement sphygmomanometer based on the blood pressure signals of a real human body.

Drawings

FIG. 1 is a block diagram of a blood pressure monitor model simulation test device of the present invention;

FIG. 2 is a schematic diagram of an explosion structure of a blood pressure monitor model simulation test device according to the present invention;

FIG. 3 is a schematic diagram of an explosion structure in another direction of a blood pressure monitor model simulation test device according to the present invention;

FIG. 4 is a schematic diagram of a database unit design of a blood pressure monitor model simulation test device of the present invention;

fig. 5 is a schematic structural view of a part of the structure of a blood pressure monitor model simulation test device according to the present invention.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, the blood pressure monitor model simulation test device of the present invention includes: the device comprises a controller unit 1, a display screen 2, keys 3, a communication interface 4, a voice coil motor 5, an air bag 6, a first inflator 7, a first air release valve 8, a pressure sensor 9, a second inflator 10, an air balance tank 11 and a second air release valve 12. The controller unit 1 is electrically connected with the display screen 2, the keys 3 and the communication interface 4 respectively; the real human blood pressure database is built based on the real human blood pressure indication value acquired by the external desk type mercury column sphygmomanometer, and the blood pressure sample curve is stored and converted by the external PC and then is transmitted into the controller unit 1 by the communication interface 4. The voice coil motor 5, the air bag 6 and the first air release valve 8 are connected with the pressure sensor 9 through an air path hose; the second inflator 10, the gas balance tank 11 and the second air release valve 12 are connected through an air path hose; the voice coil motor 5, the first inflator 7, the air release valve 8, the pressure sensor 9 and the second inflator 10 are electrically connected with the controller unit.

Specifically, the verification principle of the sphygmomanometer model simulation test device is that repeatability and stability of the blood pressure indication value of the noninvasive automatic measurement sphygmomanometer are evaluated through a blood pressure sample curve built in the sphygmomanometer model simulation test device. In the prior art, a non-invasive blood pressure simulator imported abroad is internally provided with less sample size of Eurameian blood pressure data; several domestic noninvasive blood pressure simulators generate a blood pressure sample curve through a multipurpose physical model, and it is difficult to establish a traceability relationship with real human blood pressure data. The design idea of the database unit of the sphygmomanometer model simulation test device is shown in fig. 4, and the main method is as follows: building a blood pressure acquisition device based on a table mercury column sphygmomanometer, acquiring real human blood pressure indication values and synchronously acquiring pulse waveform data in the blood pressure measurement process; and processing the waveform data, establishing a real human blood pressure database according to the determined relation between the waveform and the real blood pressure indication value, and constructing a blood pressure sample curve. The blood pressure sample curve is required to be built in a memory module of the controller unit provided in the sphygmomanometer model simulation test device of the present invention, so as to realize the simulation of blood pressure signals in cooperation with mechanical structures such as a pulse generating device. The blood pressure acquisition device is mainly built based on a table-type mercury column sphygmomanometer and mainly comprises a table-type mercury column sphygmomanometer, a cuff, a gas pressure sensor and an inflation/deflation control module. The desk type mercury column sphygmomanometer and the cuff are used for realizing the measurement of the blood pressure indication value of a human body; the gas pressure sensor is connected with the table mercury column sphygmomanometer and the cuff belt through a hose to realize gas circuit connection, and is used for detecting pressure change in the gas circuit and guiding out corresponding data signals; the desk type mercury sphygmomanometer is provided with a manual inflation/deflation air bag, and inflation/deflation of the cuff is required to be realized at a uniform speed as much as possible in the blood pressure acquisition process so as to ensure the stability of blood pressure signal acquisition. The acquired real human blood pressure signals are subjected to signal processing and can be stored as blood pressure sample curves to be led into the verification device. Among them, auscultation is a well-known standard in the field of noninvasive blood pressure measurement. The real human blood pressure curve is acquired based on the auscultation method, the blood pressure indication value is determined through the blind measurement, the unique corresponding relation between the blood pressure indication value and the blood pressure curve is determined, and the method has important significance in further establishing the traceability relation between the blood pressure sample curve of the calibrating device and the real human blood pressure indication value.

Furthermore, the hardware system design of the non-invasive automatic measurement sphygmomanometer calibrating device mainly comprises two parts, namely a mechanical structure and a hardware circuit design. The mechanical structure is used for realizing a pneumatic system of the calibrating device and comprises a gas circuit pressure providing under static pressure and simulating the generation of a blood pressure pulse wave signal; the hardware circuit is used for realizing the design of an external circuit such as a power supply driving module and the processing of pressure signals in the air circuit. The mechanical structure of the noninvasive blood pressure simulator in the prior art is a combination form of a stepping motor, a screw rod, a piston and a cylinder. The stepping motor and the screw rod control the piston to move in the cylinder to change the volume of the cylinder, so that pressure pulses are generated to simulate the change of pulse waves in the human blood pressure measurement process. However, the pulse generating device relies on a relatively complex mechanical transmission system, so that errors caused by the mechanical transmission system are difficult to avoid; in addition, the response to the control signal sent by the controller is slow, and the blood pressure simulation process cannot be accurately restored in real time. Therefore, the sphygmomanometer model simulation test device is based on the pulse generation mechanical structure of the voice coil motor 5 and the air bag 6, and errors caused by mechanical transmission can be effectively avoided. Meanwhile, the voice coil motor 5 has the advantages of high response speed, high precision and the like, and can restore blood pressure signals better.

Furthermore, the hardware architecture of the sphygmomanometer model simulation test device can be divided into two pneumatic modules: the voice coil motor 5, the air bag 6, the first inflator pump 7, the first air release valve 8 and the main pneumatic module formed by the pressure sensor 9 are used for realizing performance verification of the single oscillography noninvasive automatic measurement sphygmomanometer. The auxiliary pneumatic system composed of the second inflator pump 10, the gas balance tank 11 and the second air release valve 12 is mainly used for matching with a main pneumatic system to realize verification of a novel double-cuff double-catheter noninvasive automatic measurement sphygmomanometer. Wherein the voice coil motor 5, the air bag 6, the first air release valve 8 and the pressure sensor 9 are connected through an air path hose; the second inflator 10, the gas balance tank 11 and the second air release valve 12 are also connected through an air path hose; the voice coil motor 5, the first inflator 7, the second inflator 10, the first air release valve 8, the second air release valve 12 and the pressure sensor 9 are all electrically connected with the controller unit 1. The pressure sensor 9 needs to collect the pressure in the air path of the calibrating device. The gas balance tank 11 is used for containing gas in a gas path and maintaining and stabilizing the pressure in the gas path system. When the air leakage rate of the verification device is too high due to the air tightness problem, the air balance tank 11 can maintain the air circuit pressure stable without generating larger fluctuation, and the continuous operation of metering verification is ensured.

Further, please continue to refer to fig. 5; the voice coil motor 5 has a cylinder block 501 and a piston member 502; the piston member 502 is movably fitted in the cylinder block 501. The airbag 6 has a left fixing member 601, a left airbag 602, a right airbag 603, and a right fixing member 604; the left fixing member 601 is connected to the piston member 502; the left balloon 602 is connected to the left anchor 601. The left airbag 602 and the right airbag 603 are both in a semicircular structure; the left airbag 602 and the right airbag 603 are connected through small holes. The right airbag 603 is connected with the right fixing member 604; the right fixing member 604 is provided with an air passage port 604a. Specifically, the voice coil motor 5 presses the air bag 6 under the action of an ampere force to realize reciprocating motion. However, the piston member 502, which is commonly used, is liable to be not tightly closed when reciprocating in the cylinder block 501 of a fixed volume. Therefore, the invention discloses a closed structure of an air bag structure optimization air path of the sphygmomanometer model simulation test device, which comprises the following steps: the air bag 6 is formed by connecting two semicircular left air bags 602 and right air bags 603 through small holes. The left airbag 602 and the right airbag 603 are respectively fixed by the left fixing piece 601 and the right fixing piece 604; the left air bag 602 can axially move under the driving of the voice coil motor 5, and the right air bag 603 is fixed at the bottom of the casing. In the blood pressure simulation process, the voice coil motor 5 pushes the left air bag 602 to press the right air bag 603 to realize pressure change in the air path, so as to simulate the occurrence of pulse wave signals. The double-air-bag combined type can avoid the problem that the piston structure is easy to cause the air passage to be airtight and the problem that a single air bag is easy to generate non-axial deformation.

In summary, the sphygmomanometer model simulation test device of the present invention is provided with a controller unit 1, a display 2, a key 3, a communication interface 4, a voice coil motor 5, an air bag 6, a first inflator 7, a first air release valve 8, a pressure sensor 9, a second inflator 10, an air balance tank 11 and a second air release valve 12; the voice coil motor 5, the air bag 6, the first inflator pump 7, the first air release valve 8 and the main pneumatic module formed by the pressure sensor 9 are used for realizing performance verification of the single oscillography noninvasive automatic measurement sphygmomanometer. The auxiliary pneumatic system composed of the second inflator pump 10, the gas balance tank 11 and the second air release valve 12 is mainly used for matching with a main pneumatic system to realize verification of a novel double-cuff double-catheter noninvasive automatic measurement sphygmomanometer. Wherein the voice coil motor 5, the air bag 6, the first air release valve 8 and the pressure sensor 9 are connected through an air path hose; the second inflator 10, the gas balance tank 11 and the second air release valve 12 are also connected through an air path hose; the voice coil motor 5, the first inflator 7, the second inflator 10, the first air release valve 8, the second air release valve 12 and the pressure sensor 9 are all electrically connected with the controller unit 1. The pressure sensor 9 needs to collect the pressure in the air path of the calibrating device. The gas balance tank 11 is used for containing gas in a gas path and maintaining and stabilizing the pressure in the gas path system. When the air leakage rate of the verification device is too high due to the air tightness problem, the air balance tank 11 can maintain the air circuit pressure stable without generating larger fluctuation, and the continuous operation of metering verification is ensured. Different from the existing noninvasive blood pressure simulator, the blood pressure sample curve built in the blood pressure meter model simulation test device is based on the acquired real human blood pressure data, and can realize the metering verification of the novel double-cuff double-catheter noninvasive automatic measurement blood pressure meter while realizing the noninvasive automatic measurement blood pressure meter verification based on the single oscillography principle. Therefore, the invention discloses a sphygmomanometer model simulation test device which solves the technical problem of how to develop a noninvasive automatic measurement sphygmomanometer based on the blood pressure signals of a real human body.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. A blood pressure monitor model simulation test device, characterized in that it comprises: the device comprises a controller unit (1), a display screen (2), keys (3), a communication interface (4), a voice coil motor (5), an air bag (6), a first inflator pump (7), a first air release valve (8), a pressure sensor (9), a second inflator pump (10), an air balance tank (11) and a second air release valve (12); the controller unit (1) is respectively and electrically connected with the display screen (2), the keys (3) and the communication interface (4); establishing a real human blood pressure database based on real human blood pressure indication values acquired by an external table mercury column sphygmomanometer, and establishing a blood pressure sample curve, storing and converting the blood pressure sample curve through an external PC (personal computer), and transmitting the blood pressure sample curve into the controller unit (1) through the communication interface (4); the voice coil motor (5), the air bag (6) and the first air release valve (8) are connected with the pressure sensor (9) through an air path hose; the second inflator pump (10), the gas balance tank (11) and the second air release valve (12) are connected through an air passage hose; the voice coil motor (5), the first inflator pump (7), the air release valve (8), the pressure sensor (9) and the second inflator pump (10) are electrically connected with the controller unit.

2. The blood pressure monitor model simulation test apparatus according to claim 1, wherein: the voice coil motor (5) has a cylinder block (501) and a piston member (502).

3. The blood pressure monitor model simulation test apparatus according to claim 2, wherein: the piston member (502) is movably fitted in the cylinder block (501).

4. A blood pressure monitor model simulation test apparatus according to claim 3, wherein: the airbag (6) has a left anchor (601), a left airbag (602), a right airbag (603), and a right anchor (604).

5. The blood pressure monitor model simulation test apparatus according to claim 4, wherein: the left fixing piece (601) is connected with the piston component (502).

6. The blood pressure monitor model simulation test apparatus according to claim 5, wherein: the left airbag (602) is connected with the left fixing piece (601).

7. The blood pressure monitor model simulation test apparatus according to claim 6, wherein: the left air bag (602) and the right air bag (603) are of semicircular structures.

8. The blood pressure monitor model simulation test apparatus according to claim 7, wherein: the left air bag (602) and the right air bag (603) are connected through small holes.

9. The blood pressure monitor model simulation test apparatus according to claim 8, wherein: the right airbag (603) is connected with the right fixing piece (604).

10. The blood pressure monitor model simulation test apparatus according to claim 9, wherein: the right fixing piece (604) is provided with an air passage interface (604 a).

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