Arm-cuff sphygmomanometer airbag precision control structure with double pressure sensors
By employing a dual-pressure sensor structure and intelligent control algorithm, the problem of insufficient measurement accuracy and stability caused by a single sensor is solved, achieving accuracy and reliability in blood pressure measurement and ensuring safety and comfort during the measurement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN SIYUKANG MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-06-09
AI Technical Summary
Existing arm-type blood pressure monitors rely solely on a single pressure sensor to control the inflation and deflation of the bladder during measurement, resulting in insufficient measurement accuracy and stability. They are also susceptible to interference from external factors, affecting the accuracy of blood pressure measurements.
It adopts a dual-pressure sensor structure, including a main air pump, an auxiliary air pump, a solenoid valve, and two pressure sensors. The main air pump quickly inflates the airbag, the auxiliary air pump makes precise fine adjustments, and the dual pressure sensors detect changes in pressure inside the airbag in real time. The algorithm fuses the signals to eliminate errors, and automatically switches to the backup sensor when one sensor fails to ensure continuous monitoring.
It improves the accuracy and stability of blood pressure measurement, ensures the safety and comfort of the measurement process, enhances the reliability of the blood pressure monitor, and reduces the impact of external factors on the measurement results.
Smart Images
Figure CN224330935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of arm-type blood pressure monitors, and in particular to a precise control structure for the air bladder of an arm-type blood pressure monitor with dual pressure sensors. Background Technology
[0002] The arm-type blood pressure monitor is a commonly used medical device used to measure blood pressure in the upper limbs. It provides medical staff with relatively accurate blood pressure measurement references and is widely used in the medical field. In order to improve the accuracy of measurement, a precise control structure for the air bladder of the arm-type blood pressure monitor with dual pressure sensors is particularly needed.
[0003] Because existing arm-type blood pressure monitors, in most traditional arm-type blood pressure monitors, often control the inflation and deflation of the bladder through a single pressure sensor during measurement, this method has certain limitations in terms of measurement accuracy and stability. As a result, the measurement results are easily affected by external factors, thus affecting the accuracy of blood pressure measurement. Utility Model Content
[0004] The purpose of this invention is to provide a precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor, in order to solve the problem mentioned in the background art. In most traditional arm-type blood pressure monitors, the inflation and deflation of the air bladder is often controlled by a single pressure sensor during the measurement process. This method has certain limitations in terms of measurement accuracy and stability, making the measurement results susceptible to interference from external factors, thereby affecting the accuracy of blood pressure measurement.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor, comprising an arm-type blood pressure monitor body, a control mechanism provided on the inner surface of the arm-type blood pressure monitor body, and a fixing component provided on the inner surface of the arm-type blood pressure monitor body;
[0006] The control mechanism includes an air bladder, a connecting hole, a protective strap, a fixing plate, a main air pump, an auxiliary air pump, a solenoid valve, and a pressure sensor. An air bladder is mounted on the inner surface of the arm-type blood pressure monitor body. A connecting hole is provided on the outer surface of the air bladder. A protective strap is mounted on the outer surface of the air bladder. A fixing plate is fixedly connected to the inner surface of the arm-type blood pressure monitor body. A main air pump is fixedly connected to the inner surface of the fixing plate. An auxiliary air pump is fixedly connected to the inner surface of the fixing plate. A solenoid valve is fixedly connected to the inner surface of the arm-type blood pressure monitor body. A pressure sensor is mounted on the inner surface of the arm-type blood pressure monitor body.
[0007] Preferably, the fixing component includes a fixing seat, a sliding groove, a mounting groove, a latch, a spring, a mounting plate, a slider, and a slot. The fixing seat is fixedly connected to the inner surface of the arm-type blood pressure monitor body. The inner surface of the fixing seat has a sliding groove. The inner surface of the fixing seat has a mounting groove. The inner surface of the mounting groove is fitted with a latch. The outer surface of the latch is fitted with a spring. The outer surface of the fixing seat is connected to the mounting plate. The outer surface of the mounting plate is fixedly connected with a slider. The outer surface of the mounting plate has a slot.
[0008] Preferably, an analyzer is fixedly connected to the outer surface of the housing, an arm is connected to the upper surface of the housing, and a base is connected to the bottom wall of the housing.
[0009] Preferably, the output end of the main air pump is connected to the airbag, and the output end of the auxiliary air pump is connected to the airbag.
[0010] Preferably, one end of the solenoid valve is connected to the air bladder, and the pressure sensor is symmetrically arranged with respect to the central axis of the arm-type blood pressure monitor body.
[0011] Preferably, the groove and the slider form a sliding structure, and the inner surface of the groove matches the outer surface of the slider.
[0012] Preferably, the latch and the spring form a telescopic structure, and the outer surface of the latch matches the inner surface of the slot.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This dual-pressure sensor arm-type blood pressure monitor features a precise control structure for the air bladder. Through the arrangement of the air bladder, connecting hole, protective strap, fixing plate, main air pump, auxiliary air pump, solenoid valve, and pressure sensors, the arm is first placed inside the arm cylinder. The main air pump is then activated to rapidly pressurize the air bladder. The auxiliary air pump then precisely fine-tunes the internal pressure of the air bladder. Two pressure sensors are installed on the inner surface of the arm cylinder. These two sensors can detect pressure changes within the air bladder in real time, synchronously collect data, and use algorithms to fuse the signals, eliminating drift or positional errors of a single sensor and improving the accuracy of blood pressure measurement. Furthermore, when one pressure sensor... When a sensor fails due to mechanical malfunction or circuit problem, the system can automatically switch to a backup sensor to ensure uninterrupted continuous monitoring and enhance the reliability of the blood pressure monitor. When the pressure sensor detects excessive pressure inside the bladder, it will promptly open the solenoid valve to reduce the internal pressure, ensuring the safety and comfort of the measurement process. This addresses the limitations of existing arm-type blood pressure monitors, where traditional arm-type blood pressure monitors often rely solely on a single pressure sensor to control the inflation and deflation of the bladder during measurement. This method has limitations in terms of measurement accuracy and stability, making the measurement results susceptible to interference from external factors, thus affecting the accuracy of blood pressure measurement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0015] Figure 2 This is a schematic diagram of the control mechanism structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the disassembled structure of the fixing component of this utility model.
[0018] In the diagram: 1. Arm-type blood pressure monitor body; 11. Outer shell; 12. Analyzer; 13. Arm barrel; 14. Base; 2. Control mechanism; 21. Airbag; 22. Connecting hole; 23. Protective belt; 24. Fixing plate; 25. Main air pump; 26. Auxiliary air pump; 27. Solenoid valve; 28. Pressure sensor; 3. Fixing assembly; 31. Fixing base; 32. Slide groove; 33. Mounting groove; 34. Clamp; 35. Spring; 36. Mounting plate; 37. Slider; 38. Slot. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-4 This utility model provides a technical solution: a precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor, including an arm-type blood pressure monitor body 1, a control mechanism 2 provided on the inner surface of the arm-type blood pressure monitor body 1, and a fixing component 3 provided on the inner surface of the arm-type blood pressure monitor body 1.
[0021] The control mechanism 2 includes an airbag 21, a connecting hole 22, a protective belt 23, a fixing plate 24, a main air pump 25, an auxiliary air pump 26, a solenoid valve 27, and a pressure sensor 28. An airbag 21 is mounted on the inner surface of the arm-type blood pressure monitor body 1. A connecting hole 22 is provided on the outer surface of the airbag 21. A protective belt 23 is mounted on the outer surface of the airbag 21. A fixing plate 24 is fixedly connected to the inner surface of the arm-type blood pressure monitor body 1. A main air pump 25 is fixedly connected to the inner surface of the fixing plate 24. An auxiliary air pump 26 is fixedly connected to the inner surface of the fixing plate 24. A solenoid valve 27 is fixedly connected to the inner surface of the arm-type blood pressure monitor body 1. A pressure sensor 28 is mounted on the inner surface of the arm-type blood pressure monitor body 1. The control mechanism 2 connects to the airbag 21, connecting hole 22, protective belt 23, fixing plate 24, main air pump 25, auxiliary air pump 26, solenoid valve 27, and pressure sensor 28. The force sensor 28 is configured so that, during use, the arm is placed inside the arm cylinder 13, the main air pump 25 is activated to rapidly pressurize the air bladder 21, and then the auxiliary air pump 26 precisely fine-tunes the internal pressure of the air bladder 21. Two pressure sensors 28 are installed on the inner surface of the arm cylinder 13. The two pressure sensors 28 can detect the pressure changes inside the air bladder 21 in real time, collect data synchronously, and use algorithms to fuse the signals to eliminate the drift or positional error of a single sensor, thereby improving the accuracy of blood pressure measurement. In addition, when one pressure sensor 28 fails due to mechanical failure or circuit problem, the system can automatically switch to the backup sensor to ensure continuous monitoring without interruption and enhance the reliability of the blood pressure monitor. When the pressure sensor 28 detects that the internal pressure of the air bladder 21 is too high, it will promptly open the solenoid valve 27 to reduce the internal pressure to ensure the safety and comfort of the measurement process.
[0022] Furthermore, the fixing component 3 includes a fixing seat 31, a sliding groove 32, a mounting groove 33, a latch 34, a spring 35, a mounting plate 36, a slider 37, and a slot 38. The fixing seat 31 is fixedly connected to the inner surface of the arm-type blood pressure monitor body 1. The inner surface of the fixing seat 31 has a sliding groove 32 and a mounting groove 33. The inner surface of the mounting groove 33 is fitted with a latch 34, and the outer surface of the latch 34 is fitted with a spring 35. The outer surface of the fixing seat 31 is connected to the mounting plate 36, and the outer surface of the mounting plate 36 is fixedly connected to the slider 37. The outer surface of the mounting plate 36 has a slot 38. Through the arrangement of the fixing seat 31, sliding groove 32, mounting groove 33, latch 34, spring 35, mounting plate 36, slider 37, and slot 38, the fixing seat 31 is fixedly connected to the inner surface of the arm-type blood pressure monitor 13 during use. The pressure sensor 28 is fixedly installed on the mounting plate 36. When fixing the pressure sensor 28, the slider 37 on the mounting plate 36 is aligned with the slide groove 32 and locked onto the fixing seat 31. When the mounting plate 36 slides in the slide groove 32, the bottom of the mounting plate 36 presses against the latch 34, causing the latch 34 to move outward and compress the spring 35. When the slider 37 slides to the end of the slide groove 32, the latch 34 is locked into the slot 38 under the elastic force of the spring 35, fixing the mounting plate 36 onto the fixing seat 31. This achieves quick installation and fixation of the pressure sensor 28, improving the convenience and stability of installation. At the same time, when it is necessary to disassemble the pressure sensor 28, simply pull the latch 34 outward to release it from the slot 38, and the mounting plate 36 and the pressure sensor 28 can be easily removed from the fixing seat 31, facilitating subsequent maintenance and replacement.
[0023] Furthermore, an analyzer 12 is fixedly connected to the outer surface of the housing 11, an arm cylinder 13 is connected to the upper surface of the housing 11, and a base 14 is connected to the bottom wall of the housing 11.
[0024] Furthermore, the output end of the main air pump 25 is connected to the air bag 21, and the output end of the auxiliary air pump 26 is also connected to the air bag 21. The main air pump 25 provides the main air pressure source for the air bag 21 to quickly inflate it to the preset pressure value. The auxiliary air pump 26 serves as an auxiliary device for fine-tuning the air pressure. After the main air pump 25 reaches the basic inflation volume, the auxiliary air pump 26 starts working to slowly adjust the pressure inside the air bag 21 with more precise airflow control, thereby achieving the purpose of accurately controlling the pressure of the blood pressure monitor air bag 21.
[0025] Furthermore, one end of the solenoid valve 27 is connected to the air bladder 21, and the pressure sensor 28 is symmetrically arranged around the central axis of the arm-type blood pressure monitor body 1. Through the arrangement of the solenoid valve 27, when rapid deflation or adjustment of the pressure inside the air bladder 21 is required, the on / off state of the solenoid valve 27 can be controlled to achieve rapid gas release or regulation inside the air bladder 21, thereby further improving the flexibility and accuracy of the blood pressure monitor's air bladder 21 pressure control. In addition, the symmetrical arrangement of the pressure sensor 28 ensures balanced monitoring of the pressure on both sides of the air bladder 21, avoiding measurement errors caused by improper shape or position of the air bladder 21, and improving the accuracy and reliability of blood pressure measurement.
[0026] Furthermore, the slide groove 32 and the slider 37 form a sliding structure. The inner surface of the slide groove 32 matches the outer surface of the slider 37. By setting the slide groove 32, the slider 37 can be limited and guided, ensuring that the slider 37 slides stably in the slide groove 32 without deviation or jamming.
[0027] Furthermore, the latch 34 and the spring 35 form a telescopic structure. The outer surface of the latch 34 matches the inner surface of the slot 38. By setting the latch 34, the pressure sensor 28 is fixed, ensuring the stability and accuracy of the pressure sensor 28 during the measurement process.
[0028] Working Principle: In actual operation, the user first places their arm into the arm cylinder 13, and the main air pump 25 is activated to rapidly pressurize the air bladder 21. Then, the auxiliary air pump 26 precisely fine-tunes the internal pressure of the air bladder 21. Two pressure sensors 28 are installed on the inner surface of the arm cylinder 13. The two pressure sensors 28 can detect the pressure changes inside the air bladder 21 in real time, collect data synchronously, and use algorithms to fuse the signals, eliminating the drift or positional error of a single sensor and improving the accuracy of blood pressure measurement. In addition, when one pressure sensor 28 fails due to mechanical failure or circuit problems, the system can automatically switch to the backup sensor to ensure continuous monitoring without interruption and enhance the reliability of the blood pressure monitor. When the pressure sensor 28 detects that the internal pressure of the air bladder 21 is too high, it will promptly open the solenoid valve 27 to reduce the internal pressure to ensure the safety and comfort of the measurement process. In addition, the fixing base 31 is fixedly connected... The pressure sensor 28 is fixedly mounted on the mounting plate 36 on the inner surface of the boom 13. When fixing the pressure sensor 28, the slider 37 on the mounting plate 36 is aligned with the slide groove 32 and locked onto the fixing seat 31. When the mounting plate 36 slides in the slide groove 32, the bottom of the mounting plate 36 presses against the latch 34, causing the latch 34 to move outward and compress the spring 35. When the slider 37 slides to the end of the slide groove 32, the latch 34 is locked into the slot 38 under the elastic force of the spring 35, fixing the mounting plate 36 onto the fixing seat 31. This achieves quick installation and fixation of the pressure sensor 28, improving the convenience and stability of installation. At the same time, when it is necessary to remove the pressure sensor 28, simply pull the latch 34 outward to disengage it from the slot 38, and the mounting plate 36 and the pressure sensor 28 can be easily removed from the fixing seat 31, facilitating subsequent maintenance and replacement.
[0029] 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. A precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor, comprising an arm-type blood pressure monitor body (1), characterized in that: The inner surface of the arm-type blood pressure monitor body (1) is provided with a control mechanism (2), and the inner surface of the arm-type blood pressure monitor body (1) is provided with a fixing component (3). The control mechanism (2) includes an airbag (21), a connecting hole (22), a protective belt (23), a fixing plate (24), a main air pump (25), an auxiliary air pump (26), a solenoid valve (27), and a pressure sensor (28). An airbag (21) is installed on the inner surface of the arm-type blood pressure monitor body (1). A connecting hole (22) is opened on the outer surface of the airbag (21). A protective belt (23) is installed on the outer surface of the airbag (21). A fixing plate (24) is fixedly connected to the inner surface of the arm-type blood pressure monitor body (1). A main air pump (25) is fixedly connected to the inner surface of the fixing plate (24). An auxiliary air pump (26) is fixedly connected to the inner surface of the fixing plate (24). A solenoid valve (27) is fixedly connected to the inner surface of the arm-type blood pressure monitor body (1). A pressure sensor (28) is installed on the inner surface of the arm-type blood pressure monitor body (1).
2. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 1, characterized in that: The fixing component (3) includes a fixing seat (31), a sliding groove (32), a mounting groove (33), a latch (34), a spring (35), a mounting plate (36), a slider (37), and a slot (38). The fixing seat (31) is fixedly connected to the inner surface of the arm-type blood pressure monitor body (1). The inner surface of the fixing seat (31) is provided with a sliding groove (32). The inner surface of the fixing seat (31) is provided with a mounting groove (33). The inner surface of the mounting groove (33) is provided with a latch (34). The outer surface of the latch (34) is provided with a spring (35). The outer surface of the fixing seat (31) is connected to a mounting plate (36). The outer surface of the mounting plate (36) is fixedly connected with a slider (37). The outer surface of the mounting plate (36) is provided with a slot (38).
3. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 1, characterized in that: The main body (1) of the arm-type blood pressure monitor includes a shell (11), an analyzer (12), an arm tube (13) and a base (14). The analyzer (12) is fixedly connected to the outer surface of the shell (11), the arm tube (13) is connected to the upper surface of the shell (11), and the base (14) is connected to the bottom wall of the shell (11).
4. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 1, characterized in that: The output end of the main air pump (25) is connected to the airbag (21), and the output end of the auxiliary air pump (26) is connected to the airbag (21).
5. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 1, characterized in that: One end of the solenoid valve (27) is connected to the air bladder (21), and the pressure sensor (28) is symmetrically arranged with respect to the central axis of the arm-type blood pressure monitor body (1).
6. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 2, characterized in that: The groove (32) and the slider (37) form a sliding structure, and the inner surface of the groove (32) matches the outer surface of the slider (37).
7. The precise control structure for the air bladder of a dual-pressure sensor arm-type blood pressure monitor according to claim 2, characterized in that: The latch (34) and the spring (35) form a telescopic structure, and the outer surface of the latch (34) matches the inner surface of the slot (38).