Dual-mode pneumatic pressurization pulse diagnosis instrument

Abstract

The invention discloses a dual-mode pneumatic pressurization pulse-taking instrument, and belongs to the field of pulse-taking instruments, the dual-mode pneumatic pressurization pulse-taking instrument mainly comprises a pulse-taking instrument assembly, the pulse-taking instrument assembly comprises a main body and a bottom shell fixedly installed at the bottom of the main body, and a wrist bracket used for supporting the wrist is fixedly installed on the main body; according to the dual-mode pneumatic pressurization pulse diagnosis instrument, a two-stage pneumatic pressurization system is adopted, the downward pressing movement stroke and the radial artery pressurization movement stroke are divided into two stages of work, and therefore the requirements for large-area flexible curved surface pressurization and pressure uniformity are met; the pressurizing stroke of the first-stage air bag is large, so that a pulse measuring sensor can be close to the surface of the wrist, and the larger stroke is beneficial to the measurement of wrists with different diameters; meanwhile, the stroke of the second-stage air bag is small, so that the second-stage air bag and the sheet-shaped flexible pulse feeling sensor located on the surface of the air bag can wrap the curved surface of the wrist.

Description

Technical Field

[0001] This application relates to the field of pulse diagnosis instrument technology, specifically a dual-mode pneumatic pressurized pulse diagnosis instrument. Background Technology

[0002] The external pressure structure of the pulse diagnosis instrument is one of the key technologies for realizing pulse detection in traditional Chinese medicine. Its design directly affects the quality and accuracy of pulse signal acquisition. The following is a systematic review of this technology:

[0003] I. The main pressurization structures are as follows: 1. Mechanical screw pressurization structure, which achieves pressure regulation through precision screw transmission. Disadvantages: large size and slow response speed; 2. Pneumatic pressurization structure, which uses a single air bag and air pump system to generate pressure. Disadvantages: requires an air source and has high system complexity; 3. Electric linear drive structure, which uses a stepper motor or servo motor to directly drive the pressure head. Disadvantages: high cost and requires a precision guiding mechanism.

[0004] II. Key technical parameters need to meet the following requirements: Pressure range: typically 0-500g, covering the floating, middle, and sinking methods of traditional Chinese medicine; Resolution: advanced systems can reach 0.1g; Response time: typically 100-500ms from command to stable pressure; Repeatability: excellent systems can reach within ±1g.

[0005] Because the human wrist has a complex structure and significant individual differences, the area requiring pressure application is a flexible curved surface, and the area requiring uniform pressure application is relatively large. Therefore, among the aforementioned pressure application structures, mechanical spiral pressure and motor linear drive pressure can only apply pressure to a fixed, small area and are difficult to adapt to curved surfaces. The single-airbag pressure structure needs to be made into a wristband structure to stably apply pressure to the radial artery area. However, when the wristband structure applies external pressure, the radial artery, ulnar artery, veins, and capillaries in the wrist are all subjected to pressure. The blood flow inside the radial artery and the vessel wall, veins, capillaries, and ulnar artery are dynamically connected and in a reflux state, simultaneously compressing all the blood vessels in the wrist and affecting the pulse state of the radial artery.

[0006] Therefore, it is necessary to provide a dual-mode pneumatic pressure pulse diagnosis device to solve the above problems. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problems to be solved by this application are: 1. To provide a dual-mode pneumatic pressure pulse diagnostic instrument, which achieves the effect of dual airbags coordinating to adapt to the wrist curvature and precise zoned pressure, thereby solving the problems of mechanical and electric pressure being difficult to adapt to flexible curvatures and single airbags simultaneously compressing multiple blood vessels and interfering with the pulse; 2. To solve the problem that when people with different wrist sizes use the instrument, the difference in the stroke between the sensor and the wrist is large, and the pressure of the single airbag alone cannot adapt, the airbag forms a curvature that is opposite to the wrist curvature when it expands, and cannot fit the wrist curvature; 3. The first-stage guide rail and the spring structure can be used to press before measurement so that the pulse diagnostic sensor contacts the wrist surface, and the pre-detection data of the pulse diagnostic sensor can be used for the alignment between the wrist and the sensor.

[0008] The technical solution adopted by this application to solve its technical problem is: a dual-mode pneumatic pressure pulse diagnosis device, including a pulse pillow assembly. The pulse pillow assembly includes a main body and a bottom shell fixedly installed at the bottom of the main body. A wrist support for supporting the wrist is fixedly installed on the main body. A first-stage airbag mounting platform and a first-stage airbag are provided inside the bottom shell. The end of the main body near the wrist support has an upwardly extending portion. A second-stage airbag mounting platform is provided through the wrist support. The second-stage airbag mounting platform is located near the extension portion of the wrist support and can be aligned with the wrist support. A second-stage airbag and a sheet-like flexible pulse diagnosis sensor are fixedly installed at the bottom of the second-stage airbag mounting platform.

[0009] Furthermore, the first-stage airbag can be divided into an upper structural component and a lower structural component. An air pump pressurization mechanism is fixedly installed on the first-stage airbag mounting platform. The air pump pressurization mechanism is connected through an air pipe. A pressure relief element that cooperates with each other is also fixedly installed on the first-stage airbag mounting platform.

[0010] Furthermore, a rebound spring is fixedly installed on the bottom outer shell, and the top of the rebound spring is fixedly installed on the bottom of the primary airbag.

[0011] Furthermore, a central shaft is fixedly installed on the first-stage airbag mounting platform, and a lifting guide rod mechanism is provided on the central shaft.

[0012] Furthermore, the sheet-like flexible pulse sensor has multiple pressure measurement points. The sheet-like flexible pulse sensor is a bendable sheet sensor with a thickness of 0.3 to 1 mm; it consists of three sheets with an area greater than 45*13 mm, or one sheet with an area greater than 45*45 mm.

[0013] Furthermore, the secondary airbag has an inflation stroke of 0-10mm, and after inflation, it can bend along the wrist's curvature.

[0014] Furthermore, the air pump pressurization mechanism is capable of inflation and pressurization as well as internal pressure control.

[0015] The beneficial effects of this application are:

[0016] This application provides a dual-mode pneumatic pressure pulse diagnostic instrument. The invention employs a two-stage pneumatic pressure system, dividing the downward pressure stroke and the radial artery pressure stroke into two stages. This balances the requirements of pressurizing a large-area flexible curved surface and uniform pressure. The first-stage airbag has a large pressure stroke, allowing the pulse sensor to be close to the wrist surface. This larger stroke is beneficial for accommodating wrists of different diameters. Simultaneously, the second-stage airbag has a smaller stroke, allowing the second-stage airbag and the sheet-like flexible pulse sensor located on its surface to wrap around the curved surface of the wrist. Furthermore, the first-stage guide rail and spring-loaded structure can be used to press the pulse sensor into contact with the wrist surface before measurement. The pre-detection data from the pulse sensor can be used for alignment between the wrist and the sensor.

[0017] This application provides a dual-mode pneumatic pressure pulse diagnosis instrument. Through a closed-loop system consisting of an air pump pressurization mechanism, a pressure relief element, and a sheet-like flexible pulse sensor, it can precisely control the pressure range (covering the 0-500g range of traditional Chinese medicine pulse diagnosis), achieve a resolution of 0.1g, stabilize the pressure within 100-500ms, and maintain repeatability within ±1g. The sensor collects pulse dynamics in real time, transforming traditional subjective pulse diagnosis into quantitative data, improving the objectivity and repeatability of pulse acquisition, and overcoming the shortcomings of slow response of mechanical spiral pressurization and high cost of electric drive, thus providing accurate data support for traditional Chinese medicine diagnosis.

[0018] This application provides a dual-mode pneumatic pressure pulse diagnosis device. Through components such as a wrist support, a rebound spring, and a lifting guide rod mechanism, the wrist support can stabilize the patient's posture, while the rebound spring ensures the return to its original position after pressure is applied, and the lifting guide rod mechanism can adapt to different wrist heights. This facilitates rapid clinical operation and supports standardized pulse acquisition in scientific research scenarios, such as multi-center studies and teaching demonstrations. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0020] In the attached diagram:

[0021] Figure 1 This is an overall schematic diagram of a dual-mode pneumatic pressure pulse diagnosis device according to this application;

[0022] Figure 2 This is a schematic diagram of the bottom outer shell;

[0023] Figure 3 This is a side view of a dual-mode pneumatic pressure pulse diagnostic instrument;

[0024] The following are the labeling elements in the figure:

[0025] 10. Pulse pillow device assembly; 11. Main body; 12. Bottom shell; 13. Wrist rest; 14. First-stage airbag mounting platform; 15. First-stage airbag; 16. Central shaft; 17. Lifting guide rod mechanism; 18. Second-stage airbag mounting platform; 19. Second-stage airbag; 110. Pressure relief element; 111. Sheet-shaped flexible pulse sensor; 112. Rebound spring; 113. Air pump pressurization mechanism. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] like Figures 1-3 As shown, this application provides a dual-mode pneumatic pressure pulse diagnosis device, including a pulse pillow assembly 10. The pulse pillow assembly 10 is a medical diagnostic device that integrates traditional Chinese medicine pulse diagnosis theory with modern pneumatic technology, sensor technology and electronic information technology. Its core function is to simulate the process of pulse diagnosis in traditional Chinese medicine through pneumatic pressure, and to objectively detect and analyze the pulse of the human body.

[0029] The pulse pillow device assembly 10 includes a main body 11, and a bottom shell 12 is fixedly installed on the bottom of the main body 11. The main body 11 and the bottom shell 12 can be combined to form a whole, and also play a protective role, preventing external dust and bumps from damaging the internal precision components of the pulse pillow device assembly 10, and ensuring the long-term stable operation of the equipment.

[0030] Meanwhile, the bottom outer shell 12 forms the bottom support frame of the pulse pillow device 10, making the overall structure of the pulse pillow device 10 more stable. This allows it to remain level when placed on a desktop or other carrier, reducing interference with the accuracy of pulse data acquisition caused by device shaking, improving the reliability of pulse data acquisition, and assisting in accurate pulse diagnosis.

[0031] The main body 11 is fixedly installed with a wrist support 13 for supporting the wrist. The main body 11 is provided with a first-stage airbag mounting platform 14. At the same time, a first-stage airbag 15 capable of inflating and contracting is fixedly installed on the first-stage airbag mounting platform 14. The first-stage airbag 15 can be divided into an upper structural component and a lower structural component. Thus, this split design of the first-stage airbag 15 makes the pressure distribution more uniform during the inflation and deflation process of the airbag.

[0032] Meanwhile, the wrist support 13 adopts an ergonomic arc design and is covered with soft and skin-friendly medical silicone material. It not only provides comfortable support for the patient's wrist, but also effectively reduces the error in pulse acquisition caused by unstable wrist placement. The first-stage airbag mounting platform 14 is made of high-strength and lightweight engineering plastic material. Its structural design takes into account both strength and flexibility, and can effectively disperse airbag pressure. The first-stage airbag 15 is made of double-layer composite rubber material, which has good airtightness and elasticity, and can achieve efficient expansion and contraction.

[0033] A central shaft 16 is fixedly installed on the first-stage airbag mounting platform 14, and a lifting guide rod mechanism 17 is provided on the central shaft 16. The expansion and contraction of the first-stage airbag 15 can cause the relative distance between the upper and lower structural components of the first-stage airbag mounting platform 14 to move further apart and closer together. The upper structural component of the first-stage airbag mounting platform 14 and the wrist support 13 are fixed in relative position, and the lower structural component of the first-stage airbag mounting platform 14 and the lifting guide rod mechanism 17 are fixed on the central shaft 16. When the first-stage airbag 15 expands or contracts, it can drive the wrist support 13, the central shaft 16 and the lifting guide rod mechanism 17 to move in coordination, realizing the lifting stroke between the three. This not only allows for flexible adjustment of the detection height and pressure according to the thickness and curvature of different patients' wrists, making the pulse pillow device component 10 suitable for patients of different body types, but also allows for precise control of the lifting stroke to simulate the force changes of different finger techniques during pulse diagnosis in traditional Chinese medicine.

[0034] An air pump pressurization mechanism 113 is fixedly installed on the first-stage airbag mounting platform 14. The air pump pressurization mechanism 113 can adopt a miniature diaphragm air pump design, which has the characteristics of small size, low noise, and stable air pressure. The air pump pressurization mechanism 113 is connected through an air tube. The first-stage airbag mounting platform 14 is also fixedly installed with a mutually cooperating pressure relief element 110. The pressure relief element 110 can adopt an electromagnetic proportional valve structure, thereby achieving precise pressure control and rapid pressure relief. Inflation and internal pressure control are performed through the air pump pressurization mechanism 113, and pressure relief operation can be performed through the air pump pressurization mechanism 113.

[0035] When pulse acquisition is completed or pressure adjustment is required, the pressure relief element 110 can be controlled by the air pump pressurization mechanism 113 to perform a rapid pressure relief operation. Thus, the pressure relief element 110 can open the pressure relief channel the moment it receives the instruction, so that the gas in the airbag can be quickly discharged and the pressure can be restored to the initial state in a short time, avoiding the impact of pressure residue on the accuracy of the next test.

[0036] The main body 11 has an upwardly extending portion near the end of the wrist support 13. A second-stage airbag mounting platform 18 is provided through the wrist support 13. The second-stage airbag mounting platform 18 is located near the extended portion of the wrist support 13 and can be aligned with the wrist support 13. At the same time, a second-stage airbag 19 and a sheet-like flexible pulse sensor 111 are fixedly installed at the bottom of the second-stage airbag mounting platform 18. Thus, when the first-stage airbag 15 inflates or contracts, the second-stage airbag 19 can move up and down relative to the wrist support 13, and its movement stroke is 1 to 30 mm. The sheet-like flexible pulse sensor 111 has a thickness of 0.3 to 1 mm and consists of three pieces with an area greater than 45*13 mm, or one piece with an area greater than 45*45 mm. A rebound spring 112 is fixedly installed on the bottom outer shell 12, and the top of the rebound spring 112 is fixedly installed at the bottom of the first-stage airbag 15. The stroke of the rebound spring 112 is 1 to 30 mm.

[0037] Operating steps:

[0038] 1. When performing real-time pulse diagnosis, the patient places their wrist naturally on the wrist support 13. The wrist support 13 adopts an ergonomic arc design and is covered with skin-friendly medical silicone material to ensure that the wrist is comfortable and in a stable horizontal position. Then, the secondary airbag 19 and the sheet-like flexible pulse sensor 111, which are installed at the bottom of the secondary airbag mounting platform 18, are precisely located directly above the radial artery of the wrist. The two are reserved with an adjustable distance of 1 to 30 mm from the skin surface. This distance can be flexibly adjusted according to the patient's wrist thickness and body shape to ensure the adaptability of subsequent pressure operation.

[0039] 2. Start the air pump pressurization mechanism 113 to inflate the first-stage airbag 15 through the air tube. As the first-stage airbag 15 gradually expands, its lower structural components drive the central shaft 16 and the lifting guide rod mechanism 17 to move downward, thereby pushing the second-stage airbag mounting platform 18 and the second-stage airbag 19 to move downward synchronously. During this process, the rebound spring 112 installed between the bottom outer shell 12 and the bottom of the first-stage airbag 15 will be compressed to provide elastic potential energy for subsequent reset.

[0040] 3. When the sheet-like flexible pulse sensor 111 comes into contact with the skin surface, the sensor immediately senses the pressure change and transmits the signal to the control system of the pulse pillow device assembly 10. After receiving the trigger signal, the control system immediately stops the inflation of the first-level airbag 15 and releases a small amount of gas through the pressure relief element 110 to finely adjust the pressure of the first-level airbag 15 to a stable state.

[0041] 4. Activate the air pump pressurization mechanism 113 corresponding to the secondary airbag 19, thereby individually inflating and pressurizing the secondary airbag 19, so that the sheet-like flexible pulse sensor 111 fits tightly against the curved surface of the wrist.

[0042] 5. Pulse diagnosis complete.

[0043] 6. The control system first controls the pressure relief element 110 corresponding to the secondary airbag 19 to open, quickly releasing the gas in the secondary airbag 19, so that the pressure between the sheet-like flexible pulse sensor 111 and the skin surface is quickly relieved.

[0044] 7. After the secondary airbag 19 is completely depressurized, the depressurization procedure of the primary airbag 15 is started, so that the air pump pressurization mechanism 113 works with the depressurization element 110 to empty the gas in the primary airbag 15 and restore the airbag to its initial contracted state.

[0045] 8. As the first-stage airbag 15 depressurizes, the compressed rebound spring 112 releases its elastic potential energy, pushing the first-stage airbag 15 and connecting components upward to return to their initial working position, preparing for the next pulse diagnosis.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dual-mode pneumatic pressure pulse diagnostic instrument, characterized in that: The device includes a pulse pillow assembly (10), which includes a main body (11) and a bottom shell (12) fixedly installed at the bottom of the main body (11). A wrist support (13) for supporting the wrist is fixedly installed on the main body (11). A first-stage airbag mounting platform (14) and a first-stage airbag (15) are provided inside the bottom shell (12). The end of the main body (11) near the wrist support (13) has an upwardly extending portion. A second-stage airbag mounting platform (18) is provided through the wrist support (13). The second-stage airbag mounting platform (18) is located near the extension portion of the wrist support (13). The second-stage airbag mounting platform (18) can be aligned with the wrist support (13). A second-stage airbag (19) and a sheet-like flexible pulse sensor (111) are fixedly installed at the bottom of the second-stage airbag mounting platform (18).

2. The dual-mode pneumatic pressure pulse diagnostic instrument according to claim 1, characterized in that: The first-stage airbag (15) can be divided into an upper structural component and a lower structural component. An air pump pressurization mechanism (113) is fixedly installed on the first-stage airbag mounting platform (14). The air pump pressurization mechanism (113) is connected through an air pipe. A mutually cooperating pressure relief element (110) is also fixedly installed on the first-stage airbag mounting platform (14).

3. The dual-mode pneumatic pressure pulse diagnostic instrument according to claim 1, characterized in that: A rebound spring (112) is fixedly installed on the bottom outer shell (12), and the top of the rebound spring (112) is fixedly installed on the bottom of the first-stage airbag (15).

4. The dual-mode pneumatic pressure pulse diagnostic instrument according to claim 1, characterized in that: A central shaft (16) is fixedly installed on the first-stage airbag mounting platform (14), and a lifting guide rod mechanism (17) is provided on the central shaft (16).

5. A dual-mode pneumatic pressure pulse diagnostic instrument according to claim 1, characterized in that: The sheet-like flexible pulse sensor (111) has multiple pressure measurement points. The sheet-like flexible pulse sensor (111) is a bendable sheet sensor with a thickness of 0.3 to 1 mm; it consists of three sheets with an area greater than 45*13 mm, or one sheet with an area greater than 45*45 mm.

6. The dual-mode pneumatic pressure pulse diagnostic instrument according to claim 1, characterized in that: The secondary airbag (19) has an inflation stroke of 0-10 mm, and after inflation, it can bend along the wrist crease.

7. A dual-mode pneumatic pressure pulse diagnostic instrument according to claim 2, characterized in that: The air pump pressurization mechanism (113) is capable of inflating and pressurizing air and controlling internal pressure.

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