Electronic sphygmomanometer automatic verification device

Abstract

This utility model discloses an automatic calibration device for electronic blood pressure monitors in the field of metrology and testing technology. It includes a testing platform, with a blood pressure monitor calibration unit fixedly connected to one side of the upper end of the testing platform. The blood pressure monitor calibration unit is connected to a metal container via an air duct, and the metal container is fixed to one side of the upper end of the testing platform. An electronic blood pressure monitor is mounted on the upper end of the testing platform, and several reading acquisition devices are fixedly connected to the upper end of the testing platform. A mechanical finger is rotatably connected to one side of the electronic blood pressure monitor. This setup allows for simultaneous calibration of multiple electronic blood pressure monitors, improving calibration efficiency, increasing automation, significantly improving the calibration quality of the blood pressure monitors, and ensuring the accuracy of the blood pressure monitor measurement results.

Description

Technical Field

[0001] This utility model belongs to the field of metrology and testing technology, and specifically relates to an automatic calibration device for an electronic blood pressure monitor. Background Technology

[0002] An electronic blood pressure monitor is a medical device used to measure blood pressure. It typically consists of a cuff, sensor, inflation pump, and measuring circuitry. Regular calibration is necessary to improve the accuracy of blood pressure measurements.

[0003] Currently, the calibration of electronic blood pressure monitors is limited by the fact that only one device can be tested at a time with a single standard instrument, and manual reading, recording, and comparison are required, resulting in low calibration efficiency. When faced with a large number of blood pressure monitors to be tested, a lot of manpower and time are needed. Utility Model Content

[0004] The purpose of this invention is to provide an automatic calibration device for electronic blood pressure monitors, in order to solve the problem mentioned in the background art that existing electronic blood pressure monitors are usually calibrated manually, resulting in low work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic calibration device for an electronic blood pressure monitor, comprising a testing platform, a blood pressure monitor calibration instrument main unit fixedly connected to one side of the upper end of the testing platform, the blood pressure monitor calibration instrument main unit being connected to a metal container via an air duct, the metal container being fixedly mounted on one side of the upper end of the testing platform, an electronic blood pressure monitor being disposed at the upper end of the testing platform, a reading acquisition device being fixedly connected to the upper end of the testing platform, the number of reading acquisition devices being several, and a mechanical finger being rotatably connected to one side of the electronic blood pressure monitor.

[0006] Preferably, there are multiple metal containers, each metal container is provided with a detection air outlet, and the inflation port of the electronic blood pressure monitor being tested is connected to the detection air outlet of the metal container via an air tube.

[0007] Preferably, a fixed bracket is fixedly connected to the upper end of the testing platform, and a mechanical gripper is fixedly connected to the lower end of the fixed bracket, the mechanical gripper holding and fixing the electronic blood pressure monitor being tested.

[0008] Preferably, the main unit of the blood pressure monitor calibration instrument includes a pressure generator, a multi-channel gas distribution module, multiple pressure detection sensors, multiple air control valves, a central control unit, and a data storage module. The pressure generator is used to output pressurized gas, and its output port is connected to the main input interface of the multi-channel gas distribution module. The multi-channel gas distribution module has multiple branch gas channels connected to the main input interface. Each branch gas channel of the multi-channel gas distribution module is equipped with a pressure detection sensor and an air control valve. The pressure detection sensor is used to detect the gas pressure of the corresponding branch gas channel, and the air control valve is used to control the inflation and deflation of the corresponding branch gas channel. The outlet of each branch gas channel of the multi-channel gas distribution module is connected to a metal container via a pipeline. The central control unit is signal-connected to the pressure generator, pressure detection sensors, air control valves, mechanical fingers, reading acquisition device, and data storage module. The data storage module is used to store test data.

[0009] Preferably, the reading acquisition device is an industrial camera.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can simultaneously perform verification and calibration of multiple electronic blood pressure monitors, which improves calibration efficiency and has a high degree of automation.

[0011] 2. The test data is automatically collected and recorded by the reading acquisition device, reducing human error and ensuring the accuracy of the blood pressure monitor calibration results. Attached Figure Description

[0012] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0013] Figure 2 This is the second structural schematic diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of the metal container of this utility model.

[0015] Figure 4 This is a schematic diagram of the structural principle of this utility model.

[0016] In the diagram: 1-Testing platform; 2-Blood pressure monitor calibrator main unit; 21-Pressure generator; 22-Multi-channel air distribution module; 23-Pressure detection sensor; 24-Control valve; 25-Central control unit; 26-Data storage module; 3-Metal container; 31-Detection outlet; 4-Air intake pipe; 6-Mechanical finger; 7-Reading acquisition device; 8-Fixed bracket; 9-Mechanical gripper; 10-Electronic blood pressure monitor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4 As shown, in one embodiment of this utility model: an automatic calibration device for an electronic blood pressure monitor includes a testing platform 1. A blood pressure monitor calibration host 2 is fixedly connected to one side of the upper end of the testing platform 1. The blood pressure monitor calibration host 2 is connected to multiple metal containers 3 through an air inlet pipe 4. The metal containers 3 are fixed to one side of the upper end of the testing platform 1. Multiple electronic blood pressure monitors 10 are arranged at the upper end of the testing platform 1. The metal containers 3 are provided with a detection air outlet 31. The air inlet of the tested electronic blood pressure monitor 10 is connected to the detection air outlet 31 of the metal container through an air pipe. Multiple reading acquisition devices 7 are fixedly connected to the upper end of the testing platform 1. A mechanical finger 6 is rotatably connected to one side of each electronic blood pressure monitor 10.

[0019] The blood pressure monitor calibration unit 2 provides a standard pressure value. Then, the electronic blood pressure monitor 10 is switched on using a mechanical finger 6. The reading acquisition device 7 captures the reading image and reads the value. This design allows multiple electronic blood pressure monitors 10 to be calibrated simultaneously, improving calibration efficiency and increasing automation. The metal container provides a certain gas volume space, achieving pressure balance during static pressure testing and maintaining pressure stability, resulting in more accurate measurements.

[0020] like Figure 4As shown, in some other embodiments of this utility model, the blood pressure monitor calibration instrument main unit 2 includes a pressure generator 21, a multi-path gas distribution module 22, multiple pressure detection sensors 23, multiple air control valves 24, a central control unit 25, and a data storage module 26. The pressure generator 21 is used to output pressurized gas. The output port of the pressure generator 21 is connected to the main input interface of the multi-path gas distribution module 22. The multi-path gas distribution module 22 is provided with multiple branch gas paths connected to the main input interface. Each branch gas path of the multi-path gas distribution module 22... The system is equipped with a pressure detection sensor 23 and a control valve 24. The pressure detection sensor 23 detects the pressure of the corresponding branch airway, and the control valve 24 controls the inflation and deflation of the corresponding branch airway. The outlet of each branch airway of the multi-path air distribution module 22 is connected to a metal container 3 via a pipeline. The central control unit 25 is signal-connected to the pressure generator 21, pressure detection sensor 23, control valve 24, mechanical finger 9, reading acquisition device 7, and data storage module 26, which stores test data. Before testing, the electronic blood pressure monitor to be tested is installed, and the inflation port of the electronic blood pressure monitor is connected to the detection outlet 31 of the metal container via a tubing. After preparation, the test is started. The central control unit 25 sends a start signal to the pressure generator 21 through a preset program. The compressed gas generated by the pressure generator 21 is distributed to the corresponding intake pipes through the multi-path air distribution module 22 and then introduced into the metal container 3. The air pressure sensor 23 collects the air pressure data of its branch in real time and converts the analog signal into a digital signal and transmits it to the central control unit 25. The central control unit 25 compares the measured pressure value with the preset standard pressure value and adjusts the opening of the air control valve 24 through the PID algorithm to achieve precise control of the air pressure inside the metal container 3.

[0021] In some other embodiments of this invention, the central control unit may use an STM32F407VET6 MCU. The data storage module uses a TF-16G SD card module. The air pressure generator uses an AC-02 miniature oil-free air pump with a maximum output pressure of 300 mmHg, meeting the pressure range requirements for electronic blood pressure monitor calibration. The air pressure detection sensor may be a high-precision diffused silicon pressure sensor of model MPX5700DP, with a measurement accuracy of ±0.2 mmHg, capable of real-time and accurate acquisition of air pressure data. The air control valve may be a two-position three-way solenoid valve of model SY3220-5LZD-C6, with a response time ≤10ms, ensuring timely air pressure control.

[0022] In some other embodiments of this invention, the reading acquisition device can employ an industrial high-definition camera, model Baslerac A1920-40gc, equipped with an 8mm fixed-focus lens. The lens focal length is 8mm, the field of view is 38.5°, the resolution is 1920×1080 pixels, and the frame rate is 40fps, enabling it to clearly capture the numerical information displayed on the electronic blood pressure monitor. Each electronic blood pressure monitor under test is equipped with one reading acquisition device.

[0023] In some other embodiments of this utility model, a fixed bracket 8 is fixedly connected to the upper end of the testing platform 1, and a mechanical gripper 9 is fixedly connected to the lower end of the fixed bracket 8. The mechanical gripper 9 clamps and fixes the electronic blood pressure monitor 10. The mechanical gripper 9 can clamp and fix the electronic blood pressure monitor 10, facilitating fixation. The mechanical gripper can be a pneumatic gripper of model Festo DHRS-25-A.

[0024] In some other embodiments of this utility model, the mechanical finger may be a pneumatic mechanical finger of model BZ20-95.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic calibration device for an electronic blood pressure monitor, comprising a testing platform, characterized in that: A blood pressure monitor calibrator main unit is fixedly connected to one side of the upper end of the testing platform. The blood pressure monitor calibrator main unit is connected to a metal container through an air duct. The metal container is fixed to one side of the upper end of the testing platform. An electronic blood pressure monitor is installed at the upper end of the testing platform. A reading acquisition device is fixedly connected to the upper end of the testing platform. There are several reading acquisition devices. A mechanical finger is rotatably connected to one side of the electronic blood pressure monitor.

2. The automatic calibration device for an electronic blood pressure monitor according to claim 1, characterized in that: The number of metal containers is multiple, and each metal container is equipped with a detection air outlet. The inflation port of the electronic blood pressure monitor being tested is connected to the detection air outlet of the metal container via an air tube.

3. The automatic calibration device for an electronic blood pressure monitor according to claim 1, characterized in that: The upper end of the testing platform is fixedly connected to a fixed bracket, and the lower end of the fixed bracket is fixedly connected to a mechanical gripper, which holds and fixes the electronic blood pressure monitor being tested.

4. The automatic calibration device for an electronic blood pressure monitor according to claim 1, characterized in that: The main unit of the blood pressure monitor calibration instrument includes a pressure generator, a multi-channel gas distribution module, multiple pressure detection sensors, multiple air control valves, a central control unit, and a data storage module. The pressure generator outputs pressurized gas, and its output port is connected to the main input interface of the multi-channel gas distribution module. The multi-channel gas distribution module has multiple branch gas channels connected to the main input interface. Each branch gas channel of the multi-channel gas distribution module is equipped with a pressure detection sensor and an air control valve. The pressure detection sensor detects the gas pressure of the corresponding branch gas channel, and the air control valve controls the inflation and deflation of the corresponding branch gas channel. The outlet of each branch gas channel of the multi-channel gas distribution module is connected to a metal container via a pipeline. The central control unit is signal-connected to the pressure generator, pressure detection sensors, air control valves, mechanical fingers, reading acquisition device, and data storage module. The data storage module stores test data.

5. The automatic calibration device for an electronic blood pressure monitor according to claim 4, characterized in that: The reading acquisition device is an industrial camera.

Images