Blood pressure simulator calibration device

Abstract

The application provides a blood pressure simulator calibration device, which comprises a box body, a detection port on the box body, the detection port being used for connecting a simulator to be calibrated, a gas path module, a measurement module and a control module connected in sequence in the box body, the gas path module being used for selecting different working gas paths to generate a gas pressure signal according to an instruction sent by the control module, the measurement module being used for monitoring a waveform of the gas pressure signal, the control module being used for sending an instruction to the gas path module in response to information of the simulator to be calibrated, adjusting the instruction according to the waveform of the gas pressure signal, and recording calibration data corresponding to the simulator to be calibrated, and the gas path module comprising a static pressure working gas path, a dynamic pressure working gas path, a leakage pressure working gas path and a gas capacitor. The calibration device of the application can automatically calibrate the blood pressure simulator, improve the accuracy of the calibration result, and has a high degree of integration and is convenient to carry.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to the technical field of medical devices, and in particular to a blood pressure simulator calibration device. BACKGROUND

[0002] Blood pressure measurement is the main means to evaluate blood pressure level, diagnose hypertension and observe the efficacy of antihypertensive therapy. Electronic sphygmomanometer is the main medical tool for blood pressure measurement and monitoring. Blood pressure simulator is an instrument that can simulate human blood pressure, which can be used for measurement and verification of electronic sphygmomanometer and blood pressure part of multi-parameter monitor. Further, blood pressure simulator calibration device is a device for calibrating blood pressure simulator, which can ensure the accuracy of the value of blood pressure simulator and the reliability of the detection results.

[0003] The blood pressure simulator currently dominant in the market is based on the principle of oscillography. It can generate a pulse waveform similar to that observed from the sleeve on the arm during pressure increase and decrease, and the waveform amplitude and characteristics will change regularly with the pressure change of the sleeve during pressure increase and decrease, i.e. the overall amplitude of the pulse waveform changes in a trend of "small-large-small". Therefore, when calibrating the dynamic pressure of the blood pressure simulator, the pulse wave amplitude of the blood pressure simulator calibration device also needs to present the same change rule. However, there are few mature calibration devices at home and abroad, and there is no calibration device that can ensure that the calibrated simulator meets this rule. In addition, the existing calibration devices require large volume of standard measurement devices, are not easy to operate, and manual calibration is tedious, which increases the subjectivity of reading and the uncertainty of the calibration results. SUMMARY

[0004] In view of the above defects or deficiencies in the related art, it is desirable to provide a blood pressure simulator calibration device that can automatically calibrate the blood pressure simulator, improve the accuracy of the calibration results, and has high integration degree and is convenient to carry.

[0005] The present disclosure provides a blood pressure simulator calibration device, which comprises:

[0006] a box body;

[0007] a detection port on the box body, the detection port being used for connecting a calibrated simulator;

[0008] a gas path module, a measurement module and a control module connected in sequence in the box body, the gas path module being used for selecting different working gas paths to generate a gas pressure signal according to an instruction sent by the control module, the measurement module being used for monitoring the waveform of the gas pressure signal, and the control module being used for sending the instruction to the gas path module in response to the information of the calibrated simulator, adjusting the instruction according to the waveform of the gas pressure signal, and recording the calibration data corresponding to the calibrated simulator;

[0009] The gas path module comprises a static pressure working gas path, a dynamic pressure working gas path, a leakage pressure working gas path and a gas container, the first end of the gas container is connected with the static pressure working gas path, the dynamic pressure working gas path and the leakage pressure working gas path respectively, and the second end of the gas container is connected with the detection port.

[0010] Optionally, in some embodiments of the present disclosure, the static pressure working gas path comprises a first slow-speed pump, a gas buffer bottle, a fast-speed pump, a one-way valve and a first electromagnetic valve, the output end of the fast-speed pump is connected with the input end of the one-way valve, the input end of the first electromagnetic valve is connected with the output end of the first slow-speed pump, the output end of the gas buffer bottle and the output end of the one-way valve respectively, and the output end of the first electromagnetic valve is connected with the first end of the gas container.

[0011] Optionally, in some embodiments of the present disclosure, a hatch is arranged on the box at a position corresponding to the gas buffer bottle, and the gas buffer bottle is detachably connected in the box.

[0012] Optionally, in some embodiments of the present disclosure, the metal gas container of the gas buffer bottle is 500 mL.

[0013] Optionally, in some embodiments of the present disclosure, the fast-speed pump comprises a diaphragm pump.

[0014] Optionally, in some embodiments of the present disclosure, the dynamic pressure working gas path comprises a second electromagnetic valve and a second slow-speed pump, the input end of the second electromagnetic valve is connected with the output end of the second slow-speed pump and the input end of the measurement module respectively, and the output end of the second electromagnetic valve is connected with the first end of the gas container.

[0015] Optionally, in some embodiments of the present disclosure, the measurement module comprises a pressure sensor and a waveform display connected in sequence.

[0016] Optionally, in some embodiments of the present disclosure, the waveform display comprises any one of a PCI oscilloscope card, a USB oscilloscope card and an AD acquisition card.

[0017] Optionally, in some embodiments of the present disclosure, the volume of the gas container is 30 mL to 50 mL.

[0018] Optionally, in some embodiments of the present disclosure, the device further comprises a hand pump and a hand-operated pressure relief valve which are located outside the box and connected with the gas path module.

[0019] From the above technical solutions, it can be seen that the embodiments of the present disclosure have the following advantages:

[0020] The blood pressure simulator calibration device provided by the embodiment of the present disclosure integrates the air path module, the measurement module and the control module to form the calibration device, so that the blood pressure simulator can be automatically calibrated by connecting the simulator to be calibrated to the detection port during calibration, and the air capacity of the air path module can ensure that the pulse wave meets the change rule of "small-large-small" during the calibration of the blood pressure indication repeatability, thereby improving the accuracy of the calibration result, and the calibration device has high integration degree, small space resource occupation and is convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0021] Other features, objects and advantages of the present disclosure will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0022] Figure 1 A structural schematic diagram of a blood pressure simulator calibration device provided by the embodiment of the present disclosure is provided.

[0023] Figure 2 A structural block diagram of a detection system without air capacity provided by the embodiment of the present disclosure is provided.

[0024] Figure 3 A structural block diagram of a detection system with air capacity provided by the embodiment of the present disclosure is provided.

[0025] Figure 4 An experimental result schematic diagram without air capacity provided by the embodiment of the present disclosure is provided.

[0026] Figure 5 An experimental result schematic diagram with air capacity provided by the embodiment of the present disclosure is provided.

[0027] Figure 6 An external structural schematic diagram of a blood pressure simulator calibration device provided by the embodiment of the present disclosure is provided.

[0028] Figure 7 An internal structural schematic diagram of a blood pressure simulator calibration device provided by the embodiment of the present disclosure is provided.

[0029] Figure 8 An internal structural schematic diagram of another blood pressure simulator calibration device provided by the embodiment of the present disclosure is provided.

[0030] Figure 9 A flow schematic diagram of a control method of a blood pressure simulator calibration device provided by the embodiment of the present disclosure is provided.

[0031] Figure 10 A flow schematic diagram of calibration of static pressure provided by the embodiment of the present disclosure is provided.

[0032] Figure 11 A flow schematic diagram of calibration of dynamic pressure provided by the embodiment of the present disclosure is provided.

[0033] Figure 12 A flowchart of calibrating air tightness provided by an embodiment of the present disclosure.

[0034] Reference signs:

[0035] 10-blood pressure simulator calibration device, 11-box, 12-detection port, 13-gas path module, 131-static pressure working gas path, 1311-first slow pump, 1312-gas buffer bottle, 1313-fast pump, 1314-one-way valve, 1315-first electromagnetic valve, 132-dynamic pressure working gas path, 1321-second electromagnetic valve, 1322-second slow pump, 133-leakage pressure working gas path, 1331-standard pressure gauge, 134-gas capacity, 14-measuring module, 141-pressure sensor, 142-waveform display, 15-control module, 151-single-chip microcomputer, 152-upper computer, 16-power module. DETAILED DESCRIPTION

[0036] In order for those skilled in the technical field to better understand the present disclosure scheme, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0037] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the described embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein.

[0038] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or modules does not have to be limited to those steps or modules clearly listed, but can include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0039] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict. The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0040] For the sake of understanding, the following will be described by Figures 1 to 12 The blood pressure simulator calibration device and its control method, storage medium provided by the embodiments of the present disclosure are described in detail.

[0041] Reference is made to Figure 1 , which is a structural schematic diagram of a blood pressure simulator calibration device provided by the embodiments of the present disclosure. The calibration device 10 comprises a box body 11, a detection port 12 located on the box body 11, and a gas path module 13, a measurement module 14 and a control module 15 connected in sequence in the box body 11; the detection port 12 can be connected to a simulator to be calibrated, the gas path module 13 can select different working gas paths to generate a gas pressure signal according to the instructions sent by the control module 15, the measurement module 14 can monitor the waveform of the gas pressure signal, and the control module 15 can send instructions to the gas path module 13 in response to the information of the simulator to be calibrated, and adjust the instructions according to the waveform of the gas pressure signal, and record the corresponding calibration data of the simulator to be calibrated.

[0042] Among them, the gas path module 13 can include a static pressure working gas path 131, a dynamic pressure working gas path 132, a leakage pressure working gas path 133 and a gas capacitor 134, and the first end of the gas capacitor 134 is connected with the static pressure working gas path 131, the dynamic pressure working gas path 132 and the leakage pressure working gas path 133 respectively, and the second end of the gas capacitor 134 is connected with the detection port 12.

[0043] It should be noted that the embodiments of the present disclosure take a blood pressure simulator as the research object when determining the necessity of the gas capacitor, and gas capacitors with different volumes are designed to observe the pulse amplitude value change rule. Specifically, as shown in Figure 2 , the simulator to be calibrated is connected with the pressure input end of the pressure transducer and the pressure output end of the standard pressure gauge through a three-way joint and a rubber tube, and the voltage output end of the pressure transducer is connected with the signal input end of the digital oscilloscope to form a detection system. When the internal gas capacitor of the calibration device is changed, as shown in Figure 3 , only the gas capacitors with different volumes need to be connected through the three-way joint and the rubber tube on the detection system. Further, the embodiments of the present disclosure build Figure 2 the detection system, record the simulated pulse amplitude values at the pressure points of 13.3 kPa [100 mmHg], 15.5 kPa [117 mmHg] and 20.0 kPa [150 mmHg] according to the calibration method, and the experimental results are shown in Figure 4 . Similarly, the detection systems of other volume gas capacitors are built as shown in Figure 3 , and the experimental results are shown in Figure 5 .

[0044] From Figure 4 , it can be seen that when there is no gas capacitor inside the calibration device, the pulse amplitude value of the simulator to be calibrated continuously increases with the increase of the external input static pressure, that is, it presents "small-large-large", which does not meet the change rule of "small-large-small", and the overall pulse amplitude value is large. From Figure 5(a) It can be seen that when a suitable air capacity (such as 40 mL) is added inside the calibration device, with the increase of the external input static pressure, the pulse wave amplitude of the calibrated simulator first increases and then decreases, that is, it presents "small-large-small", which meets the change rule of the oscillographic method about the pulse wave amplitude, and the amplitude is moderate as a whole; from Figure 5 (b) It can be seen that when a larger air capacity (such as 80 mL) is added inside the calibration device, with the increase of the external input static pressure, the pulse wave amplitude of the calibrated simulator first increases and then decreases, that is, it presents "small-large-small", at this time, although the pulse wave amplitude meets the change rule, it is overall small, which will affect the waveform display effect. Therefore, based on the above analysis, it can be known that it is necessary to add an air capacity inside the calibration device, and the selection of the air capacity volume is also important.

[0045] Exemplarily, as shown in Figure 6 It is an external structure schematic diagram of a blood pressure simulator calibration device provided by the embodiment of the present disclosure. Wherein, each standard device is packaged inside the calibration device 10, the calibrated simulator can be connected with the calibration device 10 through the detection port 12 to realize the metrological calibration, and the indicator light is used to display the calibration state, and the external can directly connect the mouse and the keyboard through the USB port, the advantage of such setting is that compared with the calibration device of the prior art in which each standard device is independent of each other, the degree of integration is higher, and it is convenient to carry.

[0046] Further, the following will be combined with Figure 7The components of the blood pressure simulator calibration device 10 according to the embodiments of the present disclosure are described in detail. For example, the static pressure working gas path 131 includes a first slow-speed pump 1311, a gas buffer bottle 1312, a fast-speed pump 1313, a one-way valve 1314, and a first electromagnetic valve 1315. The output end of the fast-speed pump 1313 is connected to the input end of the one-way valve 1314. The input end of the first electromagnetic valve 1315 is connected to the output end of the first slow-speed pump 1311, the output end of the gas buffer bottle 1312, and the output end of the one-way valve 1314, respectively. The output end of the first electromagnetic valve 1315 is connected to the first end of the gas capacitor 134. The first slow-speed pump 1311 can be a peristaltic pump, which generates or discharges gas pressure slowly. The metal gas capacitor of the gas buffer bottle 1312 can be 500 mL, which can buffer the static pressure during testing. The position of the gas buffer bottle 1312 on the box 11 is provided with a hatch, and the gas buffer bottle 1312 is detachably connected to the box 11. This setting is convenient for tracing the source. The fast-speed pump 1313 can be a diaphragm pump, which can quickly generate gas pressure. The first electromagnetic valve 1315 can be a three-way electromagnetic valve. The volume of the gas capacitor 134 can be 30 mL to 50 mL, which is equivalent to an energy storage device and can adjust the energy. When the diaphragm pump is used to inflate, the gas path pressure increases instantaneously, reaching the pressure peak value. The pressure wave energy is converted into the elastic potential energy of the compressed gas in the gas capacitor 134. When the pressure wave is in the valley, the compressed gas in the gas capacitor 134 expands, and the potential energy is converted into kinetic energy, which makes up for the instantaneous pressure drop of the gas path. Thus, the dynamic pressure calibration problem can be solved through energy conversion.

[0047] For another example, the dynamic pressure working gas path 132 includes a second electromagnetic valve 1321 and a second slow-speed pump 1322. The input end of the second electromagnetic valve 1321 is connected to the output end of the second slow-speed pump 1322 and the input end of the measurement module 14, respectively. The output end of the second electromagnetic valve 1321 is connected to the first end of the gas capacitor 134. The second electromagnetic valve 1321 can be a three-way electromagnetic valve. The second slow-speed pump 1322 can be a peristaltic pump.

[0048] For another example, the leakage pressure working gas path 133 includes a standard pressure gauge 1331, which is a standard measuring instrument that can reflect the pressure value of the gas path, with the unit being mmHg / kPa.

[0049] For another example, the measurement module 14 includes a pressure sensor 141 and a waveform display 142 connected in sequence. The pressure sensor 141 can convert the air pressure signal generated by the diaphragm pump or the peristaltic pump into a voltage signal and output the voltage signal. The waveform display 142 includes any one of a PCI oscilloscope card, a USB oscilloscope card, and an AD acquisition card (used with a single-chip microcomputer).

[0050] For example, the control module 15 comprises a single-chip microcomputer 151 and an upper computer 152. The single-chip microcomputer 151 can control the inflation of the diaphragm pump, the inflation and deflation of the peristaltic pump, the opening and closing of the three-way electromagnetic valve, and communicate with the upper computer 152. The upper computer 152 can be an industrial tablet or a personal computer (PC), which can run the software system of the blood pressure simulator calibration device 10. Alternatively, the single-chip microcomputer 151 can be replaced by a programmable logic controller (PLC) or other hardware with control attributes.

[0051] For example, the calibration device 10 further comprises a power module 16, which can supply power to the gas circuit module 13, the measurement module 14 and the control module 15.

[0052] For example, the calibration device 10 further comprises a power module 16, which can supply power to the gas circuit module 13, the measurement module 14 and the control module 15. Figure 8 The calibration device 10 further comprises a hand pump and a hand pressure relief valve outside the box 11 and connected to the gas circuit module 13. At this time, the metal gas capacity of the gas buffer bottle can be 500 mL, and the volume of the gas capacity can be 50 mL to 100 mL. The advantage of such a setting is to increase the manual operation mode, thereby meeting the diversified use scenarios.

[0053] Based on the foregoing embodiments, the present disclosure provides a control method of a blood pressure simulator calibration device. The control method can be applied to Figures 1 to 8 The blood pressure simulator calibration device 10 corresponding to the embodiments is described with reference to Figure 9 The control method can comprise the following steps:

[0054] S101, in response to the information of the simulator to be calibrated, sending an instruction to the gas circuit module, the instruction being used to control the gas circuit module to select different working gas circuits to generate a gas pressure signal.

[0055] S102, adjusting the instruction according to the waveform of the gas pressure signal monitored by the measurement module, and recording the calibration data corresponding to the simulator to be calibrated.

[0056] For example, the present disclosure first connects the simulator to be calibrated to Figure 7 the detection port 12, and opens the upper computer program of the calibration device 10, and fills in the information of the simulator to be calibrated.

[0057] Further, for example Figure 10When calibrating static pressure, first, the host computer 152 in the control module 15 controls the static pressure indicator of the calibration device 10 to be on by communicating with the single-chip microcomputer 151, and sends a calibration point instruction (for example, 300 mmHg); second, the first electromagnetic valve 1315 is turned on, and the fast pump 1313 is inflated to a set value; then, the fast pump 1313 is turned off, and the first slow pump 1311 is finely adjusted, at this time, the gas is transmitted to the gas buffer bottle 1312 through the first route, to the standard pressure gauge 1331 through the second route, and to the calibrated simulator through the third route; again, the host computer 152 judges whether the pressure value of the calibrated simulator is in the appropriate range, if yes, the pressure value of the calibrated simulator is automatically input in the original table, if not, the first slow pump 1311 is finely adjusted to make the pressure value in the appropriate range; finally, the first electromagnetic valve 1315 is deflated, the host computer 152 sends other calibration point instructions and runs until a standby instruction is sent, and the first electromagnetic valve 1315 is turned off, then the running is ended.

[0058] For example Figure 11 When calibrating the blood pressure value repeatability of dynamic pressure, first, the host computer 152 controls the calibrated simulator to be in the pressure test mode, selects a blood pressure curve, and runs the first calibration point 100 mmHg, at this time, the dynamic pressure indicator is on, the first electromagnetic valve 1315 is turned off, and the second electromagnetic valve 1321 is turned on; second, the second slow pump 1322 is operated to inflate, and the gas is transmitted to the calibrated simulator through the first route and converted into a voltage signal through the pressure sensor 141 through the second route; then, when the standard pressure gauge 1331 detects that the gas route pressure is near 100 mmHg, the operation of the second slow pump 1322 is stopped, and the amplitude is collected after the waveform is stable on the display of the host computer 152 and is automatically filled in the original table; again, the host computer 152 sends other calibration point instructions to complete the calibration, and judges whether the amplitude meets the "small-large-small" change rule, if yes, the host computer 152 sends a standby instruction to turn off the second electromagnetic valve 1321, if not, the second slow pump 1322 is re-operated to execute the corresponding instruction. Similarly, the frequency collection process is similar to the amplitude collection process.

[0059] For example Figure 12 When calibrating the air tightness, first, the host computer 152 controls the calibrated simulator to be in the leakage test mode and sends an instruction, at this time, the leakage indicator is on, and the first electromagnetic valve 1315 and the second electromagnetic valve 1321 are turned off; second, manual calibration or automatic calibration is selected, if automatic calibration is selected, the host computer 152 sets the pressure target value of the calibrated simulator and automatically presses, after the pressure is stable for one minute, the host computer 152 reads the pressure indication number, and after two minutes, the host computer 152 reads the pressure indication number again, the window of the calibration device 10 displays the leakage rate, and the value is automatically recorded to the original table.

[0060] In addition, the calibration device can automatically record data in the calibration process and fill in the corresponding part of the original form, and automatically issue a calibration certificate. The calibration process of the calibrated simulator can be quickly completed by following the pop-up window prompt of the upper computer interface. The advantage of this setting is objectivity, accuracy, high automation, and greatly improved processing efficiency.

[0061] It should be noted that the descriptions of the same steps and contents in the embodiments can refer to the descriptions in other embodiments, and will not be repeated here.

[0062] The blood pressure simulator calibration device and the control method thereof provided by the embodiments of the present disclosure can integrate the air path module, the measurement module and the control module to form the calibration device, so that the calibrated simulator can be automatically calibrated by connecting the calibrated simulator to the detection port during calibration. The air path module is provided with an air capacitor to ensure that the pulse wave meets the change rule of "small-large-small" during the calibration of the blood pressure indication repeatability, thereby improving the accuracy of the calibration result. In addition, the calibration device has high integration degree and small space resource occupation, and is convenient to carry.

[0063] As another aspect, the embodiments of the present disclosure provide a computer readable storage medium for storing program code for executing any one of the above Figures 9 to 12 Any one of the embodiments of the control method of the corresponding embodiments.

[0064] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and module can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0065] In several embodiments provided by the present disclosure, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the above-described device embodiments are only schematic, for example, the division of the modules is only a logical function division, and actual implementation can have another division manner, for example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed ones can be indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms. The modules described as separate components can be or can not be physically separated, and the components displayed as modules can be or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, some or all of the modules can be selected to achieve the purpose of the embodiments.

[0066] Furthermore, the functional modules in the various embodiments of this disclosure can be integrated into one processing unit, or each module can exist physically separately, or two or more units can be integrated into one module. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.

[0067] Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the control methods of the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them; although this disclosure 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; and these 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 disclosure.

Claims

1. A blood pressure simulator calibration device, characterized in that, The device includes: Box; A detection port located on the housing is used to connect to the simulator being calibrated. The gas path module, measurement module, and control module are located inside the housing and connected in sequence. The gas path module is used to select different working gas paths to generate a gas pressure signal according to the instructions sent by the control module. The measurement module is used to monitor the waveform of the gas pressure signal. The control module is used to respond to the information of the calibrated simulator, send the instructions to the gas path module, adjust the instructions according to the waveform of the gas pressure signal, and record the calibration data corresponding to the calibrated simulator. The gas path module includes a static pressure working gas path, a dynamic pressure working gas path, a leakage pressure working gas path, and a gas container. The first end of the gas container is connected to the static pressure working gas path, the dynamic pressure working gas path, and the leakage pressure working gas path, respectively, and the second end of the gas container is connected to the detection port.

2. The blood pressure simulator calibration device according to claim 1, characterized in that, The static pressure working gas circuit includes a first slow pump, a gas buffer bottle, a fast pump, a one-way valve, and a first solenoid valve; the output end of the fast pump is connected to the input end of the one-way valve, the input end of the first solenoid valve is connected to the output end of the first slow pump, the output end of the gas buffer bottle, and the output end of the one-way valve, respectively, and the output end of the first solenoid valve is connected to the first end of the gas container.

3. The blood pressure simulator calibration device according to claim 2, characterized in that, The housing is provided with a hatch at the position corresponding to the gas buffer bottle, and the gas buffer bottle is detachably connected to the housing.

4. The blood pressure simulator calibration device according to claim 2, characterized in that, The gas buffer bottle has a metal gas capacity of 500 mL.

5. A blood pressure simulator calibration device according to claim 2, characterized in that, The fast pump includes a diaphragm pump.

6. The blood pressure simulator calibration device according to claim 1, characterized in that, The dynamic pressure working air circuit includes a second solenoid valve and a second slow pump; the input end of the second solenoid valve is connected to the output end of the second slow pump and the input end of the measurement module, respectively, and the output end of the second solenoid valve is connected to the first end of the gas container.

7. The blood pressure simulator calibration device according to claim 1, characterized in that, The measurement module includes a pressure sensor and a waveform display connected in sequence.

8. A blood pressure simulator calibration device according to claim 7, characterized in that, The waveform display includes any one of a PCI oscilloscope card, a USB oscilloscope card, and an AD acquisition card.

9. A blood pressure simulator calibration device according to any one of claims 1-3 and 5-8, characterized in that, The volume of the gas container is 30mL~50mL.

10. A blood pressure simulator calibration device according to claim 1, characterized in that, The device also includes a hand-pumped pump and a manual pressure relief valve located outside the housing and connected to the air circuit module.

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