Osteoarthritis traditional Chinese medicine application fixing device

Abstract

The invention relates to the technical field of medical auxiliary instruments, in particular to an osteoarthritis traditional Chinese medicine application fixing device which comprises a patella positioning plate, and elastic flexion and extension adaptive blocks are slidably connected to notches in the two sides of the patella positioning plate; an annular compression air bag part is embedded in the patella positioning plate, strip-shaped air bag parts are arranged on the flexion and extension adaptive blocks, and ointment layers are arranged at the bottoms of the annular compression air bag part and the strip-shaped air bag parts; a telescopic fastening assembly is detachably installed at the bottom of the patella positioning plate, the strip-shaped air bag pieces communicate with the annular compression air bag piece, and the annular compression air bag piece communicates with an inflation part. According to the invention, the patella positioning plate is constructed as a reference, the flexion and extension adaptive block is used as a dynamic compliance unit, and the annular pressure air bag piece and the strip-shaped air bag piece which are communicated with each other are combined with the inflation part to form a pneumatic adaptive adjustment system, so that the ointment layer is always tightly attached to the joint skin in the joint flexion and extension movement process; the problem that the attaching stability of a traditional pasting type application is ineffective due to skin extension and bone displacement is solved.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, specifically to a traditional Chinese medicine plaster fixation device for osteoarthritis. Background Technology

[0002] Traditional Chinese medicine plaster therapy for osteoarthritis utilizes the transdermal absorption properties of the plaster to allow the medication to effectively penetrate the skin barrier and subcutaneous tissue, ultimately acting on the diseased joint space to achieve a localized targeted therapeutic effect on the lesion.

[0003] Existing knee brace-type heated knee patches on the market use a multi-layered composite elastic fabric structure as the base, which is tightly attached to the patient's knee joint through Velcro or adhesive layers. The aim is to deliver the Chinese medicine components to the joint space to exert their effects. At the same time, these products integrate a chemical heating layer to continuously release heat energy, which promotes local transdermal absorption through the warming effect, thereby exerting a synergistic effect between the drug and the heat therapy.

[0004] However, traditional application methods using adhesive layers are difficult to maintain a stable adhesion in the long term when dealing with frequent flexion and extension movements (or micro-movements) of the knee joint. This can easily lead to instability in the effective contact between the ointment layer and the skin at the joint lesion site, thereby weakening the targeted delivery efficiency and therapeutic effect of the drug. Therefore, there is an urgent need to design a traditional Chinese medicine plaster fixation device for osteoarthritis that can adapt to the complex movement patterns of the knee joint, so as to ensure that the ointment layer maintains a close and stable fit with the treatment area during dynamic use. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a traditional Chinese medicine plaster fixation device for osteoarthritis. By constructing a pneumatic adaptive adjustment system based on a patellar positioning plate, a flexion-extension adapter block as a dynamic compliance unit, and combining interconnected annular and strip-shaped airbag components with an inflation section, the ointment layer maintains a close fit to the joint skin during joint flexion and extension movements, overcoming the problem of adhesion stability failure caused by skin stretching and bone displacement in traditional adhesive plasters.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a traditional Chinese medicine patch fixation device for osteoarthritis, including a patellar positioning plate, the patellar positioning plate being an elastic arc-shaped groove structure, and elastic flexion and extension adapter blocks being slidably connected to both sides of the groove of the patellar positioning plate.

[0007] The patellar positioning plate is embedded with a ring-shaped airbag, and the flexion-extension adapter block is equipped with a strip-shaped airbag. Both the ring-shaped airbag and the strip-shaped airbag have a medicated ointment layer at the bottom.

[0008] The bottom of the patellar positioning plate is detachably equipped with a telescopic fastening component. The telescopic fastening component applies an elastic pre-tightening force to the patellar positioning plate and the strip-shaped airbag to make the ointment layer adhere to the patient's joint skin.

[0009] All strip-shaped airbag components are connected to the ring-shaped airbag components. The ring-shaped airbag components are connected to an inflation section, which is used to pre-inflate the ring-shaped airbag components so that the ring-shaped airbag components and the strip-shaped airbag components on both sides form an initial tight fit with the patient's joint skin under the action of the telescopic fastening components.

[0010] During the application of traditional Chinese medicine plasters, when the patient's knee joint is flexed, causing the ring-shaped airbag to deform under pressure, the gas inside it is diverted to the two strip-shaped airbags on both sides. Conversely, when the patient's knee joint is extended, the gas in the two strip-shaped airbags flows back into the ring-shaped airbag after the air pressure is restored. This achieves the purpose of dynamically adjusting the adhesion stability between each layer of ointment and the patient's skin according to the patient's knee flexion and extension movements.

[0011] The technical principle of the above solution is as follows: This solution provides a traditional Chinese medicine plaster fixation device for osteoarthritis, using a patellar positioning plate as the positioning reference. The patellar positioning plate adopts an elastic arc-shaped groove structure adapted to the physiological morphology of the patella, with elastic flexion and extension adapter blocks slidably connected to the grooves on both sides. The patellar positioning plate is embedded with interconnected annular pressure airbags and strip airbags. The bottom of both annular pressure airbags and strip airbags carries the ointment layer, and elastic pre-tightening force is applied to the annular pressure airbags and strip airbags through detachable telescopic fastening components, so that the ointment layer forms an initial fit with the joint skin. At the same time, the integrated inflation part pre-inflates the annular pressure airbags to establish initial air pressure. During the patient's knee flexion and extension movements, the dynamic air pressure redistribution mechanism is used, in which the internal gas is diverted to the strip airbags when the annular pressure airbags are deformed under pressure, and the gas flows back when the knee is extended, so as to achieve adaptive adjustment of the fit stability between each ointment layer and the patient's skin with the joint flexion and extension movements.

[0012] The above approach has the following beneficial effects:

[0013] 1. In this solution, the patellar positioning plate, together with the flexion and extension adapter blocks that slide on both sides, can cope with the changes in the extensibility of the peripatellar skin and the relative displacement of the bone structure during knee flexion and extension movements. This overcomes the defect of the traditional adhesive patch in terms of stability fluctuations during dynamic processes, and ensures continuous and effective contact between the ointment layer and the skin at the joint lesion site.

[0014] 2. This solution utilizes interconnected ring-shaped and strip-shaped airbag components to construct a pneumatic adaptive adjustment system. During joint flexion and extension, the dynamic diversion and convergence of gas within the airbags enables real-time adjustment of the medicated plaster layer adhesion pressure. This reduces the probability of local stress concentration or adhesion failure caused by joint movement and improves the fixation stability of the medicated plaster layer at the application point.

[0015] 3. This solution applies elastic pre-tightening force through the telescopic fastening component, and works synergistically with the initial air pressure established by the inflation part, so that the ointment layer forms a uniform and tight initial fit with the patient's joint skin before the start of treatment. This lays the foundation for the stability of the fit during the subsequent dynamic adjustment process, thereby improving the overall targeted delivery efficiency and therapeutic effect of the traditional Chinese medicine patch.

[0016] Furthermore, the sliding connection between the flexion-extension adapter and the patellar positioning plate is specifically as follows:

[0017] The bottom of the patella positioning plate has a groove corresponding to the curvature of the patella positioning plate. Rolling grooves are provided on both sides of the groove. A connecting rod slides in the groove and a ball slides in the rolling groove. The ball rotates through both ends of the connecting rod. The flexion and extension adapter block is fixedly connected to the connecting rod.

[0018] Beneficial effects: The low-friction rolling characteristics of the ball bearings in the rolling groove drive the connecting rod to slide, causing the flexion-extension adapter to move smoothly along the arc surface of the patellar positioning plate; reducing the frictional resistance when the flexion-extension adapter slides, allowing the flexion-extension adapter to more sensitively follow the skin extension and bone displacement during knee flexion and extension and make adaptive adjustments.

[0019] Furthermore, the ring-shaped airbag component includes a pressure-bearing airbag, both ends of which are integrally formed and interconnected with annular airbags, and part of the ointment layer is located on the sidewall of the annular airbags that are close to each other.

[0020] Both sides of the strip-shaped airbag components are connected to the pressure-bearing airbag.

[0021] Beneficial effects: This design forms a pneumatic linkage system with a pressure-bearing airbag as the core and annular and strip-shaped airbag components as the actuators; by utilizing the dynamic pressure redistribution of the air path, each ointment layer maintains a constant and uniform adhesion to the skin throughout the entire joint movement, enhancing the fixation stability of the ointment layer at the drug application point.

[0022] Furthermore, the telescopic fastening assembly includes an elastic band, one side of which is fixedly connected to the patellar positioning plate, and the other end of which is detachably fixedly installed to the patellar positioning plate. The elastic band is provided with a tension adjustment component for adjusting the length of the elastic band.

[0023] Elastic connecting ropes are provided on the elastic band at the positions corresponding to the strip-shaped airbag components on both sides. One end of the elastic connecting rope is fixedly connected to the corresponding strip-shaped airbag component, and the other end of the elastic connecting rope is detachably and fixedly installed to the elastic band.

[0024] Beneficial effects: The device applies overall pretension force through elastic bands and transmits the pretension force evenly to each strip-shaped airbag component using elastic connecting ropes; it achieves stable fixation of the device to the patient's knee joint, while ensuring that the pretension force can be accurately applied to the medicated layer bearing area.

[0025] Furthermore, the detachable and fixed installation of the elastic band and the patellar positioning plate is as follows:

[0026] The elastic band is fixedly connected with a locking block, and the patella positioning plate has several corresponding locking slots. The locking block can be locked and fixed in any slot.

[0027] Beneficial effects: By selectively engaging the locking blocks into different slots, the elastic band's fixing ring diameter can be adjusted in multiple positions to accommodate the different leg circumference sizes of different patients. In addition, the quick engagement of the locking blocks and slots enables plug-and-play installation, allowing patients to independently wear and adjust the tightness of the device without complicated operations, thus improving the convenience and adaptability of daily use.

[0028] Furthermore, the inflation unit includes an air pump, an inflation status detection component, an air pressure maintenance component, and a controller, all of which are signal-connected to the controller.

[0029] The inflation status detection component is used to collect the pressure difference signal during the gas pumping process in the airbag, generate an inflation resistance index to evaluate the pre-inflation status of the compressed airbag, compare the inflation resistance index with the preset standard inflation status index, and generate a drive adjustment signal to regulate the drive status of the pumping component.

[0030] The air pressure maintenance component is used to maintain the airtightness of the compressed airbag during the application of traditional Chinese medicine.

[0031] Beneficial effects: The design of the inflation section enables intelligent control of the pre-inflation process of the pressure-bearing airbags, ensuring that each airbag reaches the appropriate initial fit pressure for the individual patient and maintains air pressure stability throughout the treatment cycle, thus providing a guarantee for the precise execution of pneumatic adaptive adjustment.

[0032] Furthermore, the inflation status detection component includes a pressure-measuring inflation tube, one end of which is connected to the pump, and an air inlet is provided on the patella positioning plate. The end of the pressure-measuring inflation tube away from the pump is connected to the air inlet.

[0033] The pressure measuring and inflation tube is equipped with a differential pressure sensor. The differential pressure sensor is used to collect and analyze the inflation pressure change data in the pressure measuring and inflation tube during the inflation process of the pump. The controller obtains the inflation pressure change data and converts it into the inflation resistance change data of the pump.

[0034] Beneficial effects: By connecting the pump to the air inlet of the airbag through the pressure-measuring inflation tube, the pressure change data during the inflation process is collected in real time by the differential pressure sensor and converted into inflation resistance change data by the controller; this enables dynamic monitoring and quantitative evaluation of the pre-inflation degree of the airbag system, providing reliable data support for accurate judgment of the inflation status and control of the pump, reducing the probability of over-inflation or under-inflation caused by subjective inflation by medical staff, which may lead to poor fit.

[0035] Furthermore, the differential pressure sensing element includes a pre-positioned differential pressure sensor, a post-positioned differential pressure sensor, and a one-way valve. The one-way valve is fixedly connected inside the pressure measuring and inflation tube. The pre-positioned differential pressure sensor is located between the one-way valve and the pumping unit, and the post-positioned differential pressure sensor is located between the one-way valve and the air inlet.

[0036] Beneficial effects: By using a one-way air valve to ensure unidirectional airflow, and by collecting the pressure values ​​before and after the one-way air valve through front and rear differential pressure sensors respectively, real-time pressure gradient data can be obtained. This reflects the resistance change during the inflation process of the pump, eliminates the measurement error caused by airflow direction fluctuations, makes the generation of inflation resistance index more accurate and reliable, and improves the precision of pre-inflation control.

[0037] Furthermore, the pressure maintaining component includes an electrically controlled airlock, which can be fixedly installed at the air inlet.

[0038] The electronically controlled airlock adjusts its opening and closing state based on the control signal transmitted by the controller, thereby switching the air inlet on and off.

[0039] Beneficial effects: The air inlet is switched on and off by an electronically controlled airlock. When it is necessary to maintain air pressure, the airlock is closed to form a closed loop in the airbag system. This ensures that the air pressure inside the airbag does not decrease due to slow leakage during the treatment of traditional Chinese medicine plaster, thus ensuring the long-term stability of the pneumatic adaptive adjustment system and maintaining the consistency of the plaster layer's adhesion effect.

[0040] Furthermore, a pressure relief trigger button is also embedded in the patella positioning plate. The pressure relief trigger button is connected to the controller signal and is used to respond to the pressing operation of medical staff or users, generate an opening command and transmit it to the electronically controlled airlock via the controller.

[0041] Beneficial effects: The device collects the pressing operation of the user or medical staff through the pressure relief trigger button, generates an opening command, and transmits it to the electronically controlled airlock via the controller to achieve rapid air release; during treatment, it can adjust the air pressure in an emergency according to the patient's real-time feeling to relieve discomfort, or quickly release the gas in the airbag after treatment to release the tight adhesion between the device and the skin, improving the convenience of ointment layer replacement and the flexibility of emergency treatment.

[0042] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the herbal poultice fixation device for osteoarthritis of the present invention;

[0044] Figure 2This is an isometric view of the patellar positioning plate in an embodiment of the osteoarthritis herbal poultice fixation device of the present invention;

[0045] Figure 3 This is an isometric schematic diagram of the arrangement of the annular pressure airbag in an embodiment of the osteoarthritis herbal poultice fixation device of the present invention;

[0046] Figure 4 This is an isometric schematic diagram of the strip-shaped airbag component in an embodiment of the osteoarthritis herbal poultice fixation device of the present invention;

[0047] Figure 5 This is a schematic diagram showing the connection between the strip-shaped airbag and the flexion-extension adapter block in an embodiment of the osteoarthritis herbal patch fixation device of the present invention;

[0048] Figure 6 This is a schematic diagram of the inflatable part in use in an embodiment of the herbal poultice fixation device for osteoarthritis of the present invention;

[0049] Figure 7 for Figure 6 A partial frontal cross-sectional view of the pressure measuring and inflation tube at point A in the middle.

[0050] The reference numerals in the accompanying drawings of the instruction manual include: 1. Patellar positioning plate; 2. Flexion-extension adapter block; 3. Circumferential pressure airbag component; 301. Pressure-bearing airbag; 302. Circumferential airbag; 4. Strip-shaped airbag component; 5. Ointment layer; 6. Elastic band; 7. Tightness adjustment component; 8. Elastic connecting rope; 9. Slide groove; 10. Rolling groove; 11. Connecting rod; 12. Ball bearing; 13. Locking block; 14. Locking groove; 15. Pump component; 16. Pressure measuring and inflation tube; 17. Air inlet; 18. Differential pressure sensor component; 1801. Front differential pressure sensor; 1802. One-way air valve; 1803. Rear differential pressure sensor; 19. Electrically controlled airlock; 20. Pressure relief trigger button. Detailed Implementation

[0051] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] The following detailed description illustrates the specific implementation method:

[0055] Example 1:

[0056] This embodiment provides a fixation device for a traditional Chinese medicine poultice for osteoarthritis, specifically as follows: Figure 1 As shown, it includes a patellar positioning plate 1, which is an elastic arc-shaped groove structure to conform to the physiological shape of the human patella. Based on the biomechanical characteristics of the patella as a relatively fixed point during knee flexion, the patellar positioning plate 1 is used as a positioning reference to lay a stable adjustment foundation.

[0057] The fluctuations in the stability of traditional adhesive herbal patches during knee flexion are mainly attributed to changes in the extensibility of the skin around the patella and the relative displacement between the bone structures constituting the joint. Therefore, combining... Figure 1 and Figure 4 As shown, in this embodiment, elastic flexion-extension adapter blocks 2 are slidably connected to the grooves on both sides of the patellar positioning plate 1 (the sliding displacement and elastic deformation of the flexion-extension adapter blocks 2 are used to dynamically adapt to the extension of the skin and the displacement of the bones). The patellar positioning plate 1 is embedded with an annular pressure airbag 3, and each of the flexion-extension adapter blocks 2 is provided with a strip-shaped airbag 4. The bottom of the annular pressure airbag 3 and the strip-shaped airbag 4 is provided with an ointment layer 5 (the ointment layer 5 is provided with an adhesive layer, and the ointment layer 5 is bonded and fixed to the corresponding annular pressure airbag 3 or strip-shaped airbag 4 through the adhesive layer).

[0058] Corresponding combination Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, a telescopic fastening assembly is detachably installed at the bottom of the patellar positioning plate 1. The telescopic fastening assembly applies an elastic pre-tightening force to the patellar positioning plate 1 and the strip-shaped airbag 4 to make the ointment layer 5 adhere to the patient's joint skin. The telescopic fastening assembly includes an elastic band 6, one side of which is fixedly connected to the patellar positioning plate 1, and the other end of which is detachably fixedly installed to the patellar positioning plate 1. The elastic band 6 is provided with a tension adjustment component 7 for adjusting the length of the elastic band 6 (the tension adjustment component 7 is preferably a sliding adjustment buckle with multiple positions). In addition, elastic connecting ropes 8 are respectively provided on the elastic band 6 at the positions corresponding to the two strip-shaped airbags 4. One end of the elastic connecting rope 8 is integrally formed with the corresponding strip-shaped airbag 4, and the other end of the elastic connecting rope 8 is detachably fixedly installed to the elastic band 6.

[0059] Based on the above-mentioned application method of the ointment layer 5 to the patient's joint skin, the sliding displacement and elastic deformation of the flexion and extension adapter 2 can dynamically follow the skin's extension and bone displacement during joint movement, ensuring the patient's flexion and extension comfort while improving the adhesion stability and targeted delivery efficiency of the ointment layer 5 during dynamic processes.

[0060] Specifically, the sliding connection between the flexion-extension adapter block 2 and the patellar positioning plate 1 is combined with... Figure 4 and Figure 5 As shown:

[0061] The bottom of the patellar positioning plate 1 has a groove 9 corresponding to the curvature of the patellar positioning plate 1. Rolling grooves 10 are provided on both sides of the groove 9. A connecting rod 11 is slidably fitted in the groove 9, and a ball bearing 12 is slidably fitted in the rolling groove 10 (the rolling fit of the connecting rod 11 and the ball bearing 12 is matched with the displacement of the flexion-extension adapter block 2 due to the flexion of the patient's knee joint). The ball bearing 12 is respectively rotatably inserted through both ends of the connecting rod 11, and the flexion-extension adapter block 2 is fixedly connected to the connecting rod 11. The low-friction rolling characteristics of the ball bearing 12 in the rolling groove 10 are used to reduce the resistance when the flexion-extension adapter block 2 slides along the arc surface of the patellar positioning plate 1. This ensures that the sliding fit can elastically adapt to the joint shape of different patients while maintaining the dynamic adhesion accuracy between the ointment layer 5 and the skin at the joint space.

[0062] Furthermore, the elastic band 6 and the patellar positioning plate 1 are specifically combined in a detachable and fixed installation. Figure 1 and Figure 2 As shown:

[0063] The elastic band 6 is fixedly connected to a locking block 13. The patellar positioning plate 1 has several corresponding locking slots 14. The locking block 13 can be locked and fixed in any locking slot 14. The locking block 13 can be locked and fixed in any locking slot 14 by engaging with the locking slot 14 at different positions to achieve multi-level adjustment of the fixed ring diameter of the elastic band 6, thereby adapting to the leg circumference (and joint circumference) size of different patients. Furthermore, the quick engagement of the locking slots 14 at multiple points with the locking block 13 enables plug-and-play installation of the elastic band 6. Patients can independently complete the wearing and tightness adjustment of the device according to their own leg circumference and tightness preference without complicated operations, improving the convenience and adaptability of daily use.

[0064] In particular, such as Figure 3 As shown, the annular pressure airbag component 3 includes a pressure-bearing airbag 301, with annular airbags 302 integrally formed at both ends of the pressure-bearing airbag 301 and interconnected. The ointment layer 5 is located on the sidewall of the annular airbags 302 on one side close to each other. The strip-shaped airbag components 4 on both sides are connected to the pressure-bearing airbag 301. Thus, the pressure-bearing airbag 301 combined with the strip-shaped airbag components 4 on both sides forms a pneumatic adaptive adjustment based on joint flexion and extension movements. During the application of the traditional Chinese medicine patch, when the patient flexes their knee, causing the pressure-bearing airbag 301 to deform under pressure, the gas inside it is diverted to the strip-shaped airbag components 4 on both sides, causing the strip-shaped airbag components 4 to expand and enhance the pressure on the ointment layer 5. The local pressure is applied; when the patient extends the knee, the gas in the two strip-shaped airbags 4 flows back to the pressure-receiving airbag 301 after the air pressure is restored, so that the annular airbag 302 is restored to fullness and maintains the adhesion of the ointment layer 5 around the joint space; with the help of the dynamic pressure redistribution of the air path, the ointment layer 5 maintains a constant and uniform adhesion to the patient's skin throughout the joint movement by means of the sliding displacement adaptation block 2 to the skin and bone displacement during joint flexion and extension, thereby enhancing the fixation stability of the ointment layer 5 at the drug delivery point and achieving the targeted delivery effect of the synergistic effect of mechanical compliance and pneumatic adaptation.

[0065] Because the application of patches for osteoarthritis needs to meet the requirement of portability, specifically as follows: Figure 6 As shown, in this embodiment, the pressure-bearing airbag 301 is connected to an inflation section, which is used to pre-inflate the annular pressure airbag component 3; specifically combined with Figure 6 and Figure 7 As shown:

[0066] The inflation unit includes an air pump 15, an inflation status detection component, an air pressure maintenance component, and a controller. The air pump 15, the inflation status detection component, and the air pressure maintenance component are all signal-connected to the controller.

[0067] The inflation status detection component is used to collect the pressure difference signal during the gas pumping process inside the airbag, generate an inflation resistance index to evaluate the pre-inflation status of the compressed airbag 301, compare the inflation resistance index with a preset standard inflation status index, and generate a drive adjustment signal to regulate the drive status of the pumping component 15; wherein:

[0068] The inflation status detection component includes a pressure-measuring inflation tube 16, one end of which is connected to the pump component 15. An air inlet 17 is provided on the patellar positioning plate 1. The end of the pressure-measuring inflation tube 16 furthest from the pump component 15 is connected to the air inlet 17. A differential pressure sensor 18 is installed inside the pressure-measuring inflation tube 16. The differential pressure sensor is used to collect and analyze the inflation pressure changes in the pressure-measuring inflation tube 16 during the inflation process of the pump component 15 in real time. The controller then obtains the inflation pressure data. The changing data is converted into the changing data of the inflation resistance of the pumping component 15; specifically: the differential pressure sensor 18 includes a front differential pressure sensor 1801, a rear differential pressure sensor 1803 and a one-way valve 1802. The one-way valve 1802 is embedded in the pressure measuring inflation tube 16. The front differential pressure sensor 1801 is located between the one-way valve 1802 and the pumping component 15, and the rear differential pressure sensor 1803 is located between the one-way valve 1802 and the air inlet 17.

[0069] During the inflation of the pressure-bearing airbag 301 by the pump 15, the front differential pressure sensor 1801 collects the inlet pressure before the one-way valve 1802, and the rear differential pressure sensor 1803 collects the pressure after the one-way valve 1802 and before entering the airbag. The pressure difference monitored in real time is analyzed and processed by the controller to calculate the inflation resistance change data of the pump 15, thereby reflecting the pre-inflation degree of the airbag system (pressure-bearing airbag 301, annular airbags at both ends, and strip-shaped airbags on both sides). This ensures that the pressure-bearing airbag 301 can reach a suitable initial bonding pressure before the herbal patch is applied, adapting to the bonding standards of different patients, and thus ensuring the accuracy of the pneumatic adaptive adjustment of the adhesion stability of the ointment layer 5 during the treatment process.

[0070] The air pressure maintenance component is used to maintain the airtightness of the pressure-bearing airbag 301 during the traditional Chinese medicine application treatment; wherein:

[0071] The air pressure maintenance component includes an electrically controlled airlock 19, which can be fixedly installed at the air inlet 17. The electrically controlled airlock 19 adjusts its opening and closing state based on the control signal transmitted by the controller to realize the switching of the air inlet 17. The electrically controlled airlock 19 includes a solenoid valve and a ventilation tube. The solenoid valve has two output terminals. One end of the ventilation tube is connected to one of the output terminals of the solenoid valve, and the other output terminal of the solenoid valve is connected to the atmosphere. The controller can send a control signal to the solenoid valve. When it is necessary to maintain the air pressure in the airbag, the solenoid valve switches to the closed state, cutting off the passage between the ventilation tube and the atmosphere, so that the airbag system forms a closed loop, thereby preventing gas leakage and ensuring the stability of air pressure during dynamic adjustment. When the treatment is over or adjustment is needed, the solenoid valve opens, allowing the gas in the airbag to be discharged into the atmosphere through the ventilation tube.

[0072] Example 2:

[0073] The difference between this embodiment and Embodiment 1 is as follows: Specifically, as shown in the figure... Figure 1 and Figure 2 As shown, the patellar positioning plate 1 is also embedded with a pressure relief trigger button 20. The pressure relief trigger button 20 is connected to the controller signal. The pressure relief trigger button 20 is used to respond to the pressing operation of medical staff or users, generate an opening command and transmit it to the electronically controlled airlock 19 through the controller to switch it to the open state to realize rapid air release. During the treatment, the pressure can be adjusted in an emergency according to the patient's real-time feeling (i.e., pressing the pressure relief trigger button 20) to relieve discomfort, or the gas in the airbag can be released quickly after the treatment to release the tight adhesion between the device and the skin, thereby improving the convenience of changing the ointment layer 5 and the flexibility of emergency treatment.

[0074] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A traditional Chinese medicine plaster fixation device for osteoarthritis, characterized in that, The patellar positioning plate (1) is an elastic arc-shaped groove structure, and elastic flexion-extension adapter blocks (2) are slidably connected at both sides of the groove of the patellar positioning plate (1). The patellar positioning plate (1) is embedded with a ring pressure airbag (3), and the flexion and extension adapter block (2) is provided with a strip airbag (4). The bottom of the ring pressure airbag (3) and the strip airbag (4) is provided with a medicated ointment layer (5). The bottom of the patellar positioning plate (1) is detachably fitted with a telescopic fastening assembly. The telescopic fastening assembly applies an elastic pre-tightening force to the patellar positioning plate (1) and the strip-shaped airbag (4) to make the ointment layer (5) adhere to the patient's joint skin. The strip-shaped airbag components (4) are all connected to the ring-shaped airbag components (3). The ring-shaped airbag components (3) are connected to an inflation part. The inflation part is used to pre-inflate the ring-shaped airbag components (3) so that the ring-shaped airbag components (3) and the strip-shaped airbag components (4) on both sides form an initial tight fit with the patient's joint skin under the action of the telescopic fastening components. During the application of traditional Chinese medicine plaster, when the patient's knee joint is flexed, causing the ring pressure airbag (3) to be deformed by pressure, the gas inside it is diverted to the two side strip airbags (4). Conversely, when the patient's knee joint is extended, the gas inside the two side strip airbags (4) flows back into the ring pressure airbag (3) after the air pressure is restored, so as to achieve the purpose of dynamically adjusting the adhesion stability between each ointment layer (5) and the patient's skin according to the patient's knee joint flexion and extension movements.

2. The herbal poultice fixation device for osteoarthritis according to claim 1, characterized in that, The sliding connection between the flexion-extension adapter block (2) and the patellar positioning plate (1) is specifically as follows: The bottom of the patella positioning plate (1) is provided with a sliding groove (9) corresponding to the arc of the patella positioning plate (1). Rolling grooves (10) are provided on both sides of the sliding groove (9). A connecting rod (11) is slidably fitted in the sliding groove (9). A ball (12) is slidably fitted in the rolling groove (10). The ball (12) is rotatably fitted at both ends of the connecting rod (11). The flexion and extension adapter block (2) is fixedly connected to the connecting rod (11).

3. The herbal poultice fixation device for osteoarthritis according to claim 2, characterized in that, The ring-shaped airbag component (3) includes a pressure-bearing airbag (301), both ends of which are integrally formed and interconnected with annular airbags (302), and a portion of the ointment layer (5) is located on the sidewall of the annular airbags (302) on the side that are close to each other. Both sides of the strip-shaped airbag components (4) are connected to the pressure airbag (301).

4. The herbal poultice fixation device for osteoarthritis according to claim 3, characterized in that, The telescopic fastening assembly includes an elastic band (6), one side of which is fixedly connected to the patellar positioning plate (1), and the other end of which is detachably fixed to the patellar positioning plate (1). The elastic band (6) is provided with a tension adjustment piece (7) for adjusting the length of the elastic band (6). Elastic connecting ropes (8) are provided on the elastic band (6) at the positions corresponding to the strip-shaped airbag components (4) on both sides. One end of the elastic connecting rope (8) is fixedly connected to the corresponding strip-shaped airbag component (4), and the other end of the elastic connecting rope (8) is detachably fixed to the elastic band (6).

5. The herbal poultice fixation device for osteoarthritis according to claim 4, characterized in that, The detachable fixing installation of the elastic band (6) and the patellar positioning plate (1) is as follows: The elastic band (6) is fixedly connected with a locking block (13), and the patella positioning plate (1) is provided with several slots (14) corresponding to the shape of the locking block (13). The locking block (13) can be locked and fixed in any slot (14).

6. The herbal poultice fixation device for osteoarthritis according to claim 5, characterized in that, The inflation unit includes an air pump (15), an inflation status detection component, an air pressure maintenance component, and a controller. The air pump (15), the inflation status detection component, and the air pressure maintenance component are all connected to the controller via signals. The inflation status detection component is used to collect the pressure difference signal during the gas pumping process in the airbag, generate an inflation resistance index to evaluate the pre-inflation status of the compressed airbag (301), compare the inflation resistance index with the preset standard inflation status index, and generate a drive adjustment signal to regulate the drive status of the pumping component (15). The pressure maintenance component is used to maintain the airtightness of the pressure-bearing airbag (301) during the application of traditional Chinese medicine.

7. The herbal poultice fixation device for osteoarthritis according to claim 6, characterized in that, The inflation status detection component includes a pressure measuring inflation tube (16), one end of which is connected to the air pump (15), and an air inlet (17) is provided on the patella positioning plate (1). The end of the pressure measuring inflation tube (16) away from the air pump (15) is connected to the air inlet (17). The pressure measuring inflation tube (16) is equipped with a differential pressure sensor (18). The differential pressure sensor is used to collect and analyze the inflation pressure change data in the pressure measuring inflation tube (16) during the inflation process of the pump (15). The controller obtains the inflation pressure change data and converts it into the inflation resistance change data of the pump (15).

8. The herbal poultice fixation device for osteoarthritis according to claim 7, characterized in that, The differential pressure sensing element (18) includes a front differential pressure sensor (1801), a rear differential pressure sensor (1803), and a one-way valve (1802). The one-way valve (1802) is fixedly connected inside the pressure measuring and charging pipe (16). The front differential pressure sensor (1801) is located between the one-way valve (1802) and the pump (15). The rear differential pressure sensor (1803) is located between the one-way valve (1802) and the air inlet (17).

9. The herbal poultice fixation device for osteoarthritis according to claim 8, characterized in that, The air pressure maintenance assembly includes an electrically controlled airlock (19), which can be fixedly installed at the air inlet (17); The electronically controlled airlock (19) adjusts the opening and closing state based on the control signal transmitted by the controller, thereby realizing the switching of the air inlet (17).

10. The herbal poultice fixation device for osteoarthritis according to claim 9, characterized in that, The patellar positioning plate (1) is also inlaid with a pressure relief trigger button (20). The pressure relief trigger button (20) is connected to the controller signal. The pressure relief trigger button (20) is used to respond to the pressing operation of medical staff or users, generate an opening command and transmit it to the electronically controlled airlock (19) via the controller.

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