Blood pressure simulation device and blood pressure simulation system

Abstract

The utility model relates to the technical field of medical instruments, and provides a blood pressure simulation device and a blood pressure simulation system. The blood pressure simulation device comprises a first air path assembly, a second air path assembly and a control unit. The first gas circuit assembly comprises a cylinder, a first gas pump, a first gas storage device, a pressure sensor, a first gas socket and a first multi-way connector. The cylinder, the first gas pump, the first gas storage device, the pressure sensor and the first gas socket are connected with the first multi-way connector. The second gas circuit assembly comprises a second gas pump, a second gas storage device, a second gas socket and a second multi-way connector. The second gas pump, the second gas storage device and the second gas socket are connected with the second multi-way connector. The air cylinder, the first air pump, the pressure sensor and the second air pump are all in communication connection with the control unit. The blood pressure simulation device overcomes the defects that an existing blood pressure simulation device can only detect a sphygmomanometer through oscillography or pulse wave, and consequently simulation precision and integration level are low.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a blood pressure simulation device and blood pressure simulation system. Background Technology

[0002] Blood pressure is one of the most important vital signs in the human body. Especially with the fast pace of modern life and unhealthy dietary habits, blood pressure has received increasing attention. Blood pressure monitors are widely used, and the application of blood pressure simulation devices is crucial in their research and manufacturing process, as they are used to verify whether the accuracy and quality of the blood pressure monitors meet standards.

[0003] Currently, many blood pressure simulation devices employ a single pneumatic path design, which limits their detection capabilities to a single function. This pneumatic path structure can only detect blood pressure using either oscillometric or pulse wave methods, resulting in lower accuracy and integration in these simulation devices. Utility Model Content

[0004] This invention provides a blood pressure simulation device and system to address the shortcomings of existing blood pressure simulation devices that can only detect blood pressure using either the oscillometric method or the pulse wave method, resulting in low simulation accuracy and integration.

[0005] This utility model provides a blood pressure simulation device, including: a first airway assembly, a second airway assembly, and a control unit.

[0006] The first air circuit assembly includes a cylinder, a first air pump, a first gas storage device, a pressure sensor, a first air socket, and a first multi-port connector. The cylinder, the first air pump, the first gas storage device, the pressure sensor, and the first air socket are respectively connected to different connectors of the first multi-port connector.

[0007] The second gas circuit assembly includes a second air pump, a second gas storage device, a second gas socket, and a second multi-port connector. The second air pump, the second gas storage device, and the second gas socket are respectively connected to different connectors of the second multi-port connector.

[0008] The cylinder, the first air pump, the pressure sensor, and the second air pump are all communicatively connected to the control unit.

[0009] According to the blood pressure simulation device provided by this utility model, the first air circuit component further includes a first one-way valve, which is disposed between the first air pump and the first multi-port connector.

[0010] According to the blood pressure simulation device provided by this utility model, the second air circuit component further includes a second one-way valve, which is disposed between the second air pump and the second multi-port connector.

[0011] According to the blood pressure simulation device provided by this utility model, the second airway component further includes a flow limiting valve, which is disposed between the second one-way valve and the second multi-port connector.

[0012] According to the blood pressure simulation device provided by this utility model, the second airway assembly further includes a first straight connector and a second straight connector. The first straight connector is disposed between the second one-way valve and the flow limiting valve, and the second straight connector is disposed between the flow limiting valve and the second multi-port connector.

[0013] According to the blood pressure simulation device provided by this utility model, the first gas circuit component further includes a control valve, which is disposed between the first gas storage device and the first multi-port connector, and the control valve is communicatively connected to the control unit.

[0014] According to the blood pressure simulation device provided by this utility model, the first air circuit assembly further includes a first exhaust valve, which is connected to the first multi-port connector to discharge gas from the first air circuit assembly, and the first exhaust valve is communicatively connected to the control unit.

[0015] According to the blood pressure simulation device provided by this utility model, the second air circuit assembly further includes a second exhaust valve, which is connected to the second multi-port connector to discharge gas from the second air circuit assembly. The second exhaust valve is communicatively connected to the control unit.

[0016] According to the blood pressure simulation device provided by this utility model, the first multi-port connector is a six-port connector, and the second multi-port connector is a four-port connector.

[0017] Another aspect of this utility model provides a blood pressure simulation system, including an oscillometric blood pressure monitor, a pulse wave blood pressure monitor, and a blood pressure simulation device as described in any of the preceding claims, wherein a first gas socket is used to connect to the oscillometric blood pressure monitor or the pulse wave blood pressure monitor, and a second gas socket is used to connect to the pulse wave blood pressure monitor.

[0018] The working principle of the blood pressure simulation device provided by this utility model is as follows.

[0019] During the oscillometric measurement simulation, the first gas socket is connected to the oscillometric blood pressure monitor under test. The oscillometric blood pressure monitor under test is inflated to the preset pressure through the first multi-port connector into the first gas storage device (simulated cuff). The oscillometric blood pressure monitor under test gradually releases pressure, and the control unit synchronously controls the cylinder to generate pressure oscillations based on the real-time pressure value captured by the pressure sensor, simulating pressure fluctuations. The blood pressure monitor analyzes the oscillation waveform generated by the simulation device to calculate the systolic and diastolic blood pressure.

[0020] During the pulse wave method measurement simulation, both the first and second gas sockets are connected to the pulse wave sphygmomanometer under test. The oscillometric sphygmomanometer under test inflates the first gas storage device (simulating the large air chamber of the cuff) to a preset pressure via the first multi-port connector, and inflates the second gas storage device (simulating the small air chamber of the cuff) to a preset pressure via the second multi-port connector. The control unit controls the cylinder to generate pressure oscillations based on the real-time pressure value collected by the pressure sensor. The second air pump is connected to the four-way connector via a flow-limiting valve to generate pressure pulses, simulating pulse waves. The sphygmomanometer's control unit calculates the blood pressure value based on the pulse waveforms collected by the first and second gas sockets and the analysis results of the pulse waveforms.

[0021] The blood pressure simulation device provided by this utility model, by setting up a first air path component, a second air path component and a control unit, has a dual air path design that can simulate both oscillometric and pulse wave blood pressure measurement. It has a high degree of integration and greatly improves testing efficiency and accuracy. It solves the problem that existing blood pressure simulation devices can only detect blood pressure monitors through either oscillometric or pulse wave methods, which leads to low accuracy and integration of these simulation devices.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the blood pressure simulation device provided in an embodiment of the present invention.

[0025] Figure label:

[0026] 10. First air circuit assembly; 110. Cylinder; 120. First air pump; 130. First gas storage device; 140. Pressure sensor; 150. First air socket; 160. First multi-port connector; 170. First check valve; 180. Control valve; 190. First exhaust valve; 20. Second air circuit assembly; 210. Second air pump; 220. Second gas storage device; 230. Second air socket; 240. Second multi-port connector; 250. Second check valve; 260. Flow restrictor valve; 270. First straight connector; 280. Second straight connector; 290. Second exhaust valve; 30. Control unit. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0030] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] The following is combined with Figure 1 This invention describes the blood pressure simulation device and system provided by this utility model.

[0033] See Figure 1 As shown, the blood pressure simulation device provided in this embodiment of the present invention includes: a first airway assembly 10, a second airway assembly 20, and a control unit 30.

[0034] The first air circuit assembly 10 includes a cylinder 110, a first air pump 120, a first gas storage device 130, a pressure sensor 140, a first air socket 150, and a first multi-port connector 160. The cylinder 110, the first air pump 120, the first gas storage device 130, the pressure sensor 140, and the first air socket 150 are respectively connected to different connectors of the first multi-port connector 160.

[0035] The second gas circuit assembly 20 includes a second air pump 210, a second gas storage device 220, a second gas socket 230, and a second multi-port connector 240. The second air pump 210, the second gas storage device 220, and the second gas socket 230 are respectively connected to different connectors of the second multi-port connector 240.

[0036] Cylinder 110, first air pump 120, pressure sensor 140 and second air pump 210 are all communicatively connected to control unit 30.

[0037] It should be noted that in this embodiment of the invention, the components can be connected by pipes (preferably silicone pipes). Silicone pipes have good elasticity and sealing properties, which can ensure the stability and safety of the air circuit. For example, the cylinder 110 is connected to the connector of the first multi-port connector 160 by a silicone pipe, and the second air socket 230 is connected to the connector of the second first multi-port connector 160 by a silicone pipe.

[0038] The blood pressure simulation device provided by this utility model, by setting up a first air path component 10, a second air path component 20 and a control unit 30, has a dual air path design that can simulate both oscillometric and pulse wave blood pressure measurements. It has a high degree of integration and greatly improves testing efficiency and accuracy. It solves the problem that existing blood pressure simulation devices can only detect blood pressure monitors through either the oscillometric or pulse wave method, which leads to low accuracy and integration of these simulation devices.

[0039] Specifically, the cylinder 110 is a device for converting mechanical motion into gas pressure. The cylinder 110 can simulate the contraction and dilation of human blood vessels and generate pressure changes according to the instructions of the control unit 30, so as to simulate the mechanical action when blood pressure changes.

[0040] The first air pump 120 and the second air pump 210 are the main components that provide pressure sources in the blood pressure simulation device, and can provide the required pressure to the first air circuit assembly 10 and the second air circuit assembly 20, respectively.

[0041] The first gas storage device 130 and the second gas storage device 220 are used to provide a stable gas volume. The first gas storage device 130 is used to simulate the inflation process of the large chamber of the cuff airbag. By adjusting the control valve 180 through the control unit 30, the internal pressure of the first gas storage device 130 can be made to rise steadily. The second gas storage device 220 is used to simulate the inflation process of the small chamber of the cuff airbag.

[0042] Pressure sensor 140 is used to collect information on pressure changes in the air passage and can provide pressure data to control unit 30.

[0043] The first gas socket 150 is used to connect to the oscillometric or pulse wave sphygmomanometer to be tested. It serves as the starting point of the gas path and is connected to the gas source via the first multi-port connector 160 to provide stable gas pressure. The second gas socket 230 is used to connect to the pulse wave sphygmomanometer to be tested. It serves as the starting point of the gas path and is connected to the gas source via the second multi-port connector 240 to provide stable gas pressure.

[0044] The control unit 30 can take many forms known in the prior art, including microcontrollers, single-chip microcomputers, digital signal processors (DSPs), programmable logic controllers (PLCs), embedded systems, field-programmable gate arrays (FPGAs), computers or laptops, and wireless modules, etc.

[0045] See Figure 1As shown, according to some embodiments of the present invention, the first gas path assembly 10 further includes a first one-way valve 170, which is disposed between the first air pump 120 and the first multi-way connector 160. By providing the first one-way valve 170 between the first air pump 120 and the first multi-way connector 160, unidirectional gas flow can be ensured, backflow can be prevented, and unidirectional pressure transmission of the gas path can be maintained.

[0046] See Figure 1 As shown, according to some embodiments of the present invention, the second gas path assembly 20 further includes a second one-way valve 250, which is disposed between the second air pump 210 and the second multi-way connector 240. Similarly, by providing the second one-way valve 250 between the second air pump 210 and the second multi-way connector 240, unidirectional gas flow can be ensured, backflow can be prevented, and unidirectional pressure transmission of the gas path can be maintained.

[0047] See Figure 1 As shown, according to some embodiments of the present invention, the second gas path assembly 20 further includes a flow limiting valve 260, which is disposed between the second one-way valve 250 and the second multi-way connector 240. By providing the flow limiting valve 260 between the second one-way valve 250 and the second multi-way connector 240, the flow rate and velocity of the gas flowing out of the second one-way valve 250 can be controlled, limiting the rate at which the gas passes through, thereby precisely controlling the inflation speed of the second gas storage device 220 (simulated cuff).

[0048] See Figure 1 As shown, according to some embodiments of the present invention, the second gas path assembly 20 further includes a first straight-through connector 270 and a second straight-through connector 280. The first straight-through connector 270 is disposed between the second one-way valve 250 and the flow-limiting valve 260, and the second straight-through connector 280 is disposed between the flow-limiting valve 260 and the second multi-port connector 240. By providing the first straight-through connector 270 and the second straight-through connector 280, flow resistance can be reduced and airflow efficiency can be improved, thereby accelerating the response speed of the blood pressure simulation device. At the same time, the stability of the second gas path assembly 20 is enhanced, ensuring stable airflow transmission between different components and reducing pressure fluctuations. In addition, the straight-through connectors facilitate maintenance and replacement, allowing users to quickly disassemble and replace components, reducing downtime.

[0049] See Figure 1As shown, according to some embodiments of the present invention, the first gas path assembly 10 further includes a control valve 180, which is disposed between the first gas storage device 130 and the first multi-port connector 160, and is communicatively connected to the control unit 30. By setting the control valve 180 between the first gas storage device 130 and the first multi-port connector 160, precise control of gas flow can be achieved, and the pipeline between the two can be flexibly opened or closed. By quickly opening and closing the control valve 180, the response speed of the first gas path assembly 10 can be improved. In addition, the opening and closing and the degree of opening of the control valve 180 can be directly controlled by the control unit 30, making operation simple.

[0050] See Figure 1 As shown, according to some embodiments of the present invention, the first gas path assembly 10 further includes a first exhaust valve 190, which is connected to a first multi-port connector 160 to discharge gas from the first gas path assembly 10. The first exhaust valve 190 is communicatively connected to the control unit 30. By setting the first exhaust valve 190, gas can be effectively discharged after the simulation of the first gas path assembly 10 is completed, ensuring the first gas path assembly 10 is ready before the next operating cycle. Secondly, the setting of the first exhaust valve 190 enhances the safety of the system and prevents potential dangers caused by gas accumulation. In addition, the communicative connection with the control unit 30 enables automated control of the exhaust operation, improving the convenience and efficiency of operation.

[0051] See Figure 1 As shown, according to some embodiments of the present invention, the second gas path assembly 20 further includes a second exhaust valve 290, which is connected to a second multi-port connector 240 to discharge gas from the second gas path assembly 20. The second exhaust valve 290 is communicatively connected to the control unit 30. Similarly, by setting the second exhaust valve 290, gas can be effectively discharged after the simulation of the second gas path assembly 20 is completed, ensuring the second gas path assembly 20 is ready before the next operating cycle. Secondly, the exhaust valve enhances the safety of the system, preventing potential dangers caused by gas accumulation. In addition, the communicative connection with the control unit 30 enables automated control of the exhaust operation, improving the convenience and efficiency of operation.

[0052] Specifically, in this embodiment, the control valve 180, the first exhaust valve 190, and the second exhaust valve 290 are all solenoid valves, which facilitate receiving control commands from the control unit 30, thereby achieving precise control of gas flow. The application of solenoid valves allows for the rapid and accurate opening and closing of various valves, enabling the inflow, outflow, and discharge of gas. Furthermore, the fast response speed of solenoid valves ensures that the system can adjust the gas state promptly, optimizing operational efficiency.

[0053] Preferably, in the first air circuit assembly 10, since the first multi-port connector 160 is directly connected to six devices (including cylinder 110, first air pump 120, first gas storage device 130, pressure sensor 140, first air socket 150, and first exhaust valve 190), the first multi-port connector 160 is a six-way connector. Similarly, in the second air circuit assembly 20, since the second multi-port connector 240 is directly connected to four devices (including second air pump 210, second gas storage device 220, second air socket 230, and second exhaust valve 290), the second multi-port connector 240 is a four-way connector.

[0054] The blood pressure simulation system provided by this utility model is described below. The blood pressure simulation system described below can be referred to in correspondence with the blood pressure simulation device described above.

[0055] The blood pressure simulation system provided in this embodiment includes an oscillometric blood pressure monitor, a pulse wave blood pressure monitor, and a blood pressure simulation device as described in any of the above embodiments. A first gas socket 150 is used to connect to the oscillometric blood pressure monitor or the pulse wave blood pressure monitor, and a second gas socket 230 is used to connect to the pulse wave blood pressure monitor.

[0056] The working principle of the blood pressure simulation device and blood pressure simulation system provided by this utility model is as follows.

[0057] During the oscillometric measurement simulation, the first gas socket 150 is connected to the oscillometric blood pressure monitor under test. The control valve 180 is opened, and the oscillometric blood pressure monitor under test inflates the first gas storage device 130 (simulated cuff) to a preset pressure via the first multi-port connector 160. The oscillometric blood pressure monitor gradually releases pressure, and the control unit 30 simultaneously controls the cylinder 110 to generate pressure oscillations based on real-time pressure changes captured by the pressure sensor 140, simulating pressure fluctuations. The blood pressure monitor analyzes the oscillation waveform generated by the simulation device to calculate the systolic and diastolic blood pressure. After the simulation ends, the first exhaust valve 190 opens, venting the gas in the first gas path assembly 10 to the outside.

[0058] During the pulse wave method measurement simulation, both the first gas socket 150 and the second gas socket 230 are connected to the pulse wave blood pressure monitor under test. The control valve 180 is opened, and the oscillometric blood pressure monitor under test inflates the first gas storage device 130 (simulating the large air chamber of the cuff) to a preset pressure via the first multi-port connector 160. The pulse wave blood pressure monitor under test inflates the second gas storage device 220 (simulating the small air chamber of the cuff) to a preset pressure via the second multi-port connector 240. The control unit 30 controls the cylinder 110 to generate pressure oscillations based on the real-time pressure value collected by the pressure sensor 140. The second air pump 210 is connected to the four-way connector via the flow limiting valve 260 to generate pressure pulses, simulating pulse waves. The blood pressure monitor's control unit 30 calculates the blood pressure value based on the pulse waveforms collected by the first gas socket 150 and the second gas socket 230, and the analysis results of the pulse waveforms. After the simulation ends, the first exhaust valve 190 and the second exhaust valve 290 open, respectively venting the gas in the first gas path assembly 10 and the second gas path assembly 20 to the outside.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A blood pressure simulation device, characterized in that, include: First air passage assembly, second air passage assembly, and control unit; The first air circuit assembly includes a cylinder, a first air pump, a first gas storage device, a pressure sensor, a first air socket, and a first multi-port connector. The cylinder, the first air pump, the first gas storage device, the pressure sensor, and the first air socket are respectively connected to different connectors of the first multi-port connector. The second gas circuit assembly includes a second air pump, a second gas storage device, a second gas socket, and a second multi-port connector, wherein the second air pump, the second gas storage device, and the second gas socket are respectively connected to different connectors of the second multi-port connector; The cylinder, the first air pump, the pressure sensor, and the second air pump are all communicatively connected to the control unit.

2. The blood pressure simulation device according to claim 1, characterized in that, The first air circuit assembly further includes a first one-way valve, which is located between the first air pump and the first multi-port connector.

3. The blood pressure simulation device according to claim 1, characterized in that, The second air circuit assembly also includes a second one-way valve, which is located between the second air pump and the second multi-port connector.

4. The blood pressure simulation device according to claim 3, characterized in that, The second gas path assembly also includes a flow restrictor valve, which is located between the second check valve and the second multi-port connector.

5. The blood pressure simulation device according to claim 4, characterized in that, The second gas path assembly further includes a first straight connector and a second straight connector. The first straight connector is located between the second one-way valve and the flow restrictor valve, and the second straight connector is located between the flow restrictor valve and the second multi-port connector.

6. The blood pressure simulation device according to claim 1, characterized in that, The first gas path assembly further includes a control valve, which is located between the first gas storage device and the first multi-port connector, and is communicatively connected to the control unit.

7. The blood pressure simulation device according to claim 1, characterized in that, The first gas path assembly further includes a first exhaust valve, which is connected to the first multi-port connector to discharge gas from the first gas path assembly. The first exhaust valve is communicatively connected to the control unit.

8. The blood pressure simulation device according to claim 1, characterized in that, The second gas path assembly further includes a second exhaust valve, which is connected to the second multi-port connector to discharge gas from the second gas path assembly. The second exhaust valve is communicatively connected to the control unit.

9. The blood pressure simulation device according to any one of claims 1 to 8, characterized in that, The first multi-port connector is a six-port connector, and the second multi-port connector is a four-port connector.

10. A blood pressure simulation system, characterized in that, The device includes an oscillometric sphygmomanometer, a pulse wave sphygmomanometer, and a blood pressure simulation device as described in any one of claims 1-9, wherein the first gas socket is used to connect to the oscillometric sphygmomanometer or the pulse wave sphygmomanometer, and the second gas socket is used to connect to the pulse wave sphygmomanometer.

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