Simulation device and method for body movement caused by respiration

Abstract

The invention discloses a simulation device for body movement caused by respiration. The simulation device comprises a plurality of air bags, a silica gel shell, a limiting device and a controller. The silica gel shell forms a closed cavity, and a plurality of air bags are arranged in the silica gel shell; the air bag has certain gas in advance, the top surface of the air bag is in contact with the upper side of the interior of the silica gel shell, and the bottom surface of the air bag is in contact with the lower side of the interior of the silica gel shell; the limiting devices are arranged on the left side and the right side of the air bag correspondingly so as to fix the position of the air bag. The left side and the right side of the air bag make contact with the limiting device. And an air inlet of the air bag is connected with an air outlet of the inflation equipment through a hose. The device can be suitable for performance detection of the non-contact breathing testing device.

Description

Technical Field

[0001] The present application relates to the technical field of breathing simulation, and in particular to a device and method for simulating body movements induced by breathing. Background Art

[0002] In the development and performance testing of breathalyzers, breathing simulators play a vital role. Traditional respiratory monitoring equipment often relies on actual human data during development and testing, which is not only costly but also difficult to obtain stable and diverse test samples. Therefore, it is particularly important to develop a device that can simulate real breathing signals. The breathing simulation device can enable the performance of the breathalyzer to be fully verified before it is officially put into use, providing more accurate and reliable testing tools for clinical medicine, thereby better serving patients' health monitoring and disease treatment.

[0003] When the human body breathes, the volume of gas in the chest cavity will change, which will cause the electrical impedance of the chest cavity to change accordingly. Therefore, Chinese patent CN221242871U "A breathing simulation signal acquisition circuit and device" mentions that according to the base resistance adjustment module, multiple different base impedances can be set, and through the variable resistance adjustment module, multiple different variable impedances can be set to adjust the resistance value, adjust the current, simulate the changes in body electrical signals during breathing, and then realize the function of simulating breathing.

[0004] Chinese patent CN217567046U "A Breathing Simulated Lung Calibration Device" proposes connecting the simulated lung pipeline with the piston cavity, so that the piston cavity makes reciprocating motion, allowing the gas to enter the simulated lung through the pipeline, and combining with a high-precision pressure sensor to collect the pressure change curve of the airway in real time when simulating the human breathing process, and accurately obtain the calibration results of the compliance and airway resistance of the simulated lung.

[0005] For non-contact respiratory rate monitoring equipment, such as mattresses, which detect body movement signals by sensing pressure changes or deformation of the human body, millimeter wave radar uses the emission and reception of millimeter waves to detect the movement of objects. When the human body moves, the millimeter wave radar can capture the changes in the reflected waves. Therefore, the simulation device in the form of impedance-electrical signal is only suitable for detecting devices that monitor respiratory rate based on electrical signals. It cannot sense the ups and downs of the chest and back, and is not suitable for performance testing of contact respiratory rate monitoring equipment. The simulation devices based on cylinders and pistons are mostly placed in a box-shaped casing. This design makes it impossible to observe the ups and downs of the chest and back from the outside. Because the casing will block the internal mechanical movement, it is impossible to contact the contact respiratory rate monitoring equipment. Therefore, it is not suitable for performance testing of contact respiratory rate monitoring equipment. Summary of the invention

[0006] Based on this, in order to solve the above technical problems, a device and method for simulating body movements induced by breathing are provided to solve the problem that the prior art is not suitable for performance testing of contact respiratory rate monitoring equipment.

[0007] In a first aspect, a device for simulating body movements induced by breathing, the device comprising: a plurality of air bags (2), a silicone shell (1), a limiting device (3), a hose (4), and an inflating device (5);

[0008] The silicone shell (1) forms a closed cavity, and a plurality of airbags (2) are arranged in the silicone shell (1); the airbags (2) are filled with a certain amount of gas in advance, the top surface of the airbags (2) is in contact with the upper inner side of the silicone shell (1), and the bottom surface of the airbags (2) is in contact with the lower inner side of the silicone shell (1);

[0009] The limiting devices are respectively arranged on the left and right sides of the airbag (2) to fix the position of the airbag (2); the left and right sides of the airbag (2) are respectively in contact with the limiting devices (3);

[0010] The air inlet of the air bag (2) is connected to the air outlet of the inflation device (5) via a hose (4).

[0011] In the above solution, optionally, the limiting mechanism (3) comprises: a fixing member (32) and a limiting member (31); the fixing member (32) is connected to the inside of the silicone shell (1), and the fixing member (32) is connected to the limiting member (31).

[0012] In the above solution, optionally, an airflow regulating valve (6) is provided on the hose (4).

[0013] In the above solution, further optionally, the device further comprises: a controller (7); the controller controls the airflow regulating valve (6) to control the inflation and deflation rate of the airbag (2);

[0014] The inflation and deflation rate of the control airbag (2) is determined by finite element analysis using the breathing simulation device to generate breathing data of different sizes.

[0015] In the above solution, optionally, the limiting mechanism (3) is made of metal.

[0016] In the above solution, optionally, the silicone shell (1) is in the shape of a human body.

[0017] In the above scheme, further optionally, the device also includes a display; the controller (7) is connected to the display to display the inflation rate.

[0018] In a second aspect, a method for simulating body movement induced by breathing is provided, wherein the method uses the device for simulating body movement induced by breathing as described in the first aspect; the method comprises:

[0019] The inflation and deflation of the airbag by the inflatable device is controlled by a controller.

[0020] This application has at least the following beneficial effects:

[0021] The present application places an airbag in a silicone shell, and limits the left and right movement of the airbag through a limit device. By adjusting the silicone dummy and the airbag with appropriate parameters, the upper side of the silicone shell fluctuates by 5-10mm, and the lower side fluctuates by 1-3mm when the airbag is inflated, which is closer to the actual situation of the front and back chest breathing fluctuations of the human body. In this way, the contact breathing detection equipment can accurately obtain the movement of the silicone body. Therefore, the device of the present application can accurately imitate the actual situation of the front and back chest breathing fluctuations of real breathing, and is suitable for performance testing of contact breathing detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a breathing simulation device provided in one embodiment of the present application;

[0023] Among them, 1-silicone shell, 2-airbag, 3-limiting device, 31-limiting part, 32-fixing part, 4-hose, 5-inflating equipment, 6-air flow regulating valve, 7-controller. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] In one embodiment, Figure 1 As shown, a device for simulating body movements induced by breathing is provided, the device comprising: a plurality of air bags (2), a silicone shell (1), a limiting device (3), a hose (4), and an inflation device (5);

[0026] The silicone shell (1) forms a closed cavity, and a plurality of airbags (2) are arranged in the silicone shell (1); the airbags (2) are filled with a certain amount of gas in advance, the top surface of the airbags (2) is in contact with the upper inner side of the silicone shell (1), and the bottom surface of the airbags (2) is in contact with the lower inner side of the silicone shell (1);

[0027] The limiting devices are respectively arranged on the left and right sides of the airbag (2) to fix the position of the airbag (2); the left and right sides of the airbag (2) are respectively in contact with the limiting devices (3);

[0028] The air inlet of the air bag (2) is connected to the air outlet of the inflation device (5) via a hose (4).

[0029] In this embodiment, through finite element simulation, suitable parameters of the silicone dummy (1) and the airbag (2) are selected, and the additional limit device (3) is used to make the chest fluctuation range of the airbag (2) 5-10mm and the back fluctuation range of 1-3mm when the airbag (2) is inflated, which is closer to the real situation. The airbag (2) is placed in the body of the silicone dummy, and the silicone dummy (1) is squeezed in both directions when it is inflated and deflated, making it suitable for the detection of various non-contact monitoring products.

[0030] The airbag (2) is placed inside the body of the silicone dummy (1) and squeezes the silicone dummy (1) in both directions when inflating and deflation, making it suitable for the detection of various non-contact monitoring products.

[0031] In the above-mentioned device for simulating body movement caused by breathing, an airbag (2) is placed in a silicone shell, and the airbag (2) is limited to move left and right by a limit device (3). By adjusting the appropriate parameters of the silicone dummy (1) and the airbag (2), when the airbag (2) is inflated, the upper side of the silicone body (1) fluctuates by 5-10mm, and the lower side fluctuates by 1-3mm, which is closer to the actual situation of the front and back chest breathing fluctuations of the human body. In this way, the contact breathing detection equipment can accurately obtain the movement of the silicone body (1). With this device of the present application, the actual situation of the front and back chest breathing fluctuations of the real breathing can be accurately simulated, and it is suitable for the performance detection of the contact breathing detection equipment.

[0032] In one embodiment, the limiting mechanism (3) comprises: a fixing member (32) and a limiting member (31); the fixing member (32) is connected to the inside of the silicone shell (1), and the fixing member (32) is connected to the limiting member (31).

[0033] In one embodiment, an air flow regulating valve (6) is provided on the hose (4).

[0034] In one embodiment, the device further comprises: a controller (7); the controller controls the airflow regulating valve (6) to control the inflation and deflation rate of the airbag (2);

[0035] The inflation and deflation rate of the control airbag (2) is determined by finite element analysis of the breathing simulation device to generate breathing data of different sizes. The inflation and deflation rate of the air valve is controlled by the program-circuit to achieve simulation of breathing processes with different amplitudes and different rates.

[0036] The specific steps of controlling the inflation and deflation rate of the air bag (2) by using the breathing simulation device to determine the finite element analysis include:

[0037] Step S1: Establishing a geometric model of a simulation device for breathing-induced body motion,

[0038] Step S2: constructing a finite element analysis model of the device for simulating body motion induced by breathing according to the geometric model of the device for simulating body motion induced by breathing;

[0039] Step S3: pre-acquire actual heart rate signals of a plurality of real human bodies in different health states; for any actual heart rate signal, execute steps S4 to S5;

[0040] Step S4: controlling the inflation and deflation rate of the inflatable device;

[0041] Step S5: Determine the similarity between the simulated heartbeat signal and the actual heartbeat signal. If the similarity is lower than the set value, change the inflation and deflation rate of the inflation device, and repeat steps S4-S5 until the similarity between the output simulated heartbeat signal and the actual heartbeat signal is greater than the set value, and output the inflation and deflation rate;

[0042] In this embodiment, the inflation and deflation rates of the air valve are controlled by a program-circuit to achieve simulation of breathing processes with different amplitudes and rates.

[0043] In one embodiment, the limiting mechanism (3) is made of metal.

[0044] In one embodiment, the silicone shell (1) is in the shape of a human body.

[0045] In this embodiment, the shape of the silicone shell (1) may also be any other shape.

[0046] In one embodiment, the device further comprises a display, which is not shown in the figure; the controller is connected to the display to display the inflation rate.

[0047] In a second aspect, a method for simulating body movement induced by breathing is provided, wherein the method uses the device for simulating body movement induced by breathing as described above; the method comprises:

[0048] The inflation and deflation of the airbag by the inflatable device is controlled by a controller.

[0049] This technical solution provides a device and test method suitable for performance testing of non-contact respiratory rate monitoring products (including smart monitoring mattresses, millimeter wave radars, monitoring belts, sleep monitors, etc.). The main technical effects are:

[0050] (1) Wide application: All respiratory rate monitoring products based on chest and back body motion signals can use this device to detect the respiratory rate indication accuracy parameters.

[0051] (2) High accuracy: The signal generated by this solution is closer to the human body's own signal, and the detection results are more representative

[0052] (3) Replacement of real people: This scheme can simulate the respiratory rate characteristics of various groups of people, such as strong, weak, and sick. It does not require real people to participate in the test, which can avoid ethical issues.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A device for simulating body movements induced by breathing, characterized in that: The device comprises: a plurality of air bags (2), a silicone shell (1), a limiting device (3), a hose (4), and an inflating device (5); The silicone shell (1) forms a closed cavity, and a plurality of airbags (2) are arranged in the silicone shell (1); the airbags (2) are filled with a certain amount of gas in advance, the top surface of the airbags (2) is in contact with the upper inner side of the silicone shell (1), and the bottom surface of the airbags (2) is in contact with the lower inner side of the silicone shell (1); The limiting devices are respectively arranged on the left and right sides of the airbag (2) to fix the position of the airbag (2); the left and right sides of the airbag (2) are respectively in contact with the limiting devices (3); The air inlet of the air bag (2) is connected to the air outlet of the inflation device (5) via a hose (4).

2. The device for simulating body movements induced by breathing according to claim 1, characterized in that: The limiting mechanism (3) comprises: a fixing member (32) and a limiting member (31); the fixing member (32) is connected to the inside of the silicone shell (1), and the fixing member (32) is connected to the limiting member (31).

3. The device for simulating body movements induced by breathing according to claim 1, characterized in that: The hose (4) is provided with an airflow regulating valve (6).

4. The device for simulating body movements induced by breathing according to claim 3, characterized in that: The device further comprises: a controller (7); the controller controls the airflow regulating valve (6) to control the inflation and deflation rate of the airbag (2); The inflation and deflation rate of the control airbag (2) is determined by finite element analysis using the breathing simulation device to generate breathing data of different sizes.

5. The device for simulating body movements induced by breathing according to claim 1, characterized in that: The limiting mechanism (3) is made of metal.

6. The device for simulating body movements induced by breathing according to claim 1, characterized in that: The silicone shell (1) is in the shape of a human body.

7. The device for simulating body movements induced by breathing according to claim 4, characterized in that: The device also includes a display; the controller (7) is connected to the display to display the inflation rate.

8. A method for simulating body movements induced by breathing, the method using the device for simulating body movements induced by breathing as described in claims 1-7; the method comprising: The inflation and deflation of the airbag by the inflatable device is controlled by a controller.

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