Knee joint heating nursing device and method for rheumatism immunity

Abstract

The invention discloses a knee joint heating nursing device and method for rheumatism immunity, and relates to the technical field of knee joint nursing. According to the knee joint heating nursing device and method for rheumatism immunity, a knee pad body, a lower fixing strip, an upper fixing strip and a control panel are included, the lower fixing strip and the upper fixing strip are used for fixing the knee pad body, the control panel is used for controlling a heating mode, and an alternating assembly used for switching a temperature storage part and a locking assembly used for locking the switched temperature storage part are arranged in the knee pad body; the alternating assembly comprises a containing box inserted into the kneecap body in a penetrating mode and used for containing the temperature storage part; the heat storage piece is wound and stored in the containing box through the winding rod and used for knee joint nursing after heat storage, the effective thermal therapy duration is prolonged, the single treatment duration is prolonged, a patient can decide whether to continue to unwind or not according to the pain relieving degree, the resource utilization rate is increased, the use cost is reduced, single-section work is forced, it is ensured that heat output is always in a safe temperature interval, and the patient can feel comfortable. A user is forced to completely use the current segment.

Description

Technical Field

[0001] This invention relates to the field of knee joint care technology, specifically to a heating care device and method for rheumatic and immune knee joints. Background Technology

[0002] Rheumatic and immunological diseases (such as rheumatoid arthritis and ankylosing spondylitis) often affect the knee joint, leading to symptoms such as chronic pain, morning stiffness, and limited mobility. Hyperthermia, as a non-pharmacological intervention, can effectively alleviate patient discomfort by improving local blood circulation, relieving muscle spasms, and raising the pain threshold. It has been widely used in home rehabilitation care. Currently, knee joint hyperthermia devices on the market are mainly divided into two categories: one is an electrically heated physiotherapy device that provides continuous heat through heating wires or carbon fiber heating elements; the other is a phase change material heat storage knee brace. Existing phase change material heat storage hyperthermia products still have significant limitations; a single piece of phase change heat storage material can typically only maintain effective heat release for 30–60 minutes, which is insufficient to meet the needs of long-term rehabilitation. For example, the knee brace for preventing knee osteoarthritis disclosed in CN216315712U has the problem of a short effective heat release time for a single phase change heat storage material. Therefore, a heating device and method for rheumatic immune knee joint care are proposed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a heating care device and method for rheumatic and immune knee joints, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heating and nursing device for rheumatic and immune knee joints, comprising a knee brace body, a lower fixing strip and an upper fixing strip for fixing the knee brace body, and a control panel for controlling the heating mode. The knee brace body is provided with a switching assembly for switching heat storage elements and a locking assembly for locking the switched heat storage elements. The switching assembly includes: The housing is inserted into the body of the knee brace to house the heat-retaining components; The heat-retaining pad is wound up and stored in the container using a retractor, and is used for knee joint care after heat retention. A miniature motor, connected to the winding rod via a driven shaft, provides power for switching the heat storage plates.

[0005] Preferably, the locking assembly includes: a threaded disc, fixed on the driven shaft, which rotates with the driven shaft to provide a trigger condition for the locking assembly; a fixing post, the bottom of which is fixed to the top of the threaded disc, and a fixing hole is provided on its surface to cooperate in locking the position of the driven shaft after switching; and a threaded sleeve, which is threadedly sleeved on the outside of the threaded disc and threadedly engaged with the threaded disc.

[0006] Preferably, the locking assembly further includes: a limiting rod, one end of which is fixed to the threaded sleeve; a guide plate, the bottom of which is fixed to the top of the receiving box and sleeved on the other end of the limiting rod to guide and limit the limiting rod; a sliding rod, one end of which slides through the limiting rod; and a positioning rod, one end of which is fixed to the sliding rod and the other end of which is adapted to the size of the fixing hole.

[0007] Preferably, the locking assembly further includes: a left electromagnet, the bottom of which is fixed to the limiting rod; a magnet, which is fixedly embedded in the sliding rod and magnetically engages with the energized left electromagnet to change its position; a right electromagnet, the bottom of which is fixed to the limiting rod and magnetically engages with the magnet after being energized to change the position of the sliding rod; and a spring, one end of which is fixed to the sliding rod and the other end of which is fixed in the threaded sleeve.

[0008] Preferably, the switching assembly further includes: an output shaft fixed to the output end of the micro motor to transmit the power of the micro motor; a drive wheel fixed to the output shaft; and a driven wheel fixed to the driven shaft and connected to the drive wheel via a chain.

[0009] Preferably, the locking assembly further includes a displacement sensor fixed to the bottom of the limiting rod, used to detect the distance between the limiting rod and the top of the receiving box, thereby confirming the activation timing of the locking assembly.

[0010] Preferably, the locking assembly further includes: an airbag fixed inside the limiting rod; a positioning block, one end of which slides through the guide plate and the other end has an inclined surface, which cooperates with the pressure strain gauge at the top of the limiting rod to limit the position of the limiting rod; a support rod, the side wall of which is fixed to one end of the positioning block; a support plate, one end of which is fixed to the guide plate; and a second spring, one end of which is fixed to the support rod and the other end of which is fixed inside the support plate.

[0011] Preferably, the locking assembly further includes: an inclined groove formed on the limiting rod, which is slidably adapted to the inclined surface of the positioning block; and a rectangular groove formed on the limiting rod, which is adapted to the size of the airbag, so that the positioning block can be moved after the airbag is inflated.

[0012] The present invention also provides an operating method for a heating and nursing device for rheumatic and immune knee joints, comprising the following steps: S1. Put the knee brace on the knee joint and use the lower and upper fixing strips to fix the position of the knee brace. Select the care mode through the control panel. S2. The heat storage plates are switched according to the heat release progress by the rotation component; S3. After the heat storage element is switched, the switched heat storage element is fixed by the locking component; S4. Switch the startup method of the locking component according to the usage scenario; S5. After completing the knee joint care, remove the lower and upper fixation strips and take off the knee brace.

[0013] Preferably, the speed at which the switching component switches the heat storage plates is between 10 and 30 cm / min.

[0014] This invention provides a heating and care device and method for rheumatic and immune knee joints. Compared with the prior art, it has the following advantages: (1) The device and method for heating and nursing the knee joint of rheumatoid immune system can extend the effective heat therapy time to 2-4 hours or even longer through the continuous release of multi-segment heat storage heat. The whole process does not require external power supply or replacement of the entire module. It only achieves energy continuation through mechanical unwinding, which extends the duration of a single treatment. Patients can decide whether to continue unwinding according to the degree of pain relief, which improves resource utilization, reduces usage costs, and avoids the fluctuations from overheating to cooling to reheating caused by the temperature control lag of traditional electric heating film. It is more in line with the needs of rheumatoid patients for continuous and gentle heat therapy.

[0015] (2) The device and method for heating and nursing the knee joint of rheumatoid immune system forces single-segment operation to ensure that the heat output is always within the safe temperature range, forcing the user to use the current segment completely, reducing the energy waste of the heat storage plate, and avoiding the user from overusing it due to the eagerness to relieve the symptoms. It conforms to the principle of gradual rehabilitation. The user does not need to judge whether to put on a new segment. The device gives a clear behavioral boundary through locking, which is especially suitable for middle-aged and elderly rheumatoid patients with declining cognitive ability.

[0016] (3) The device and method for heating and nursing the knee joint of rheumatoid immune system has a longer lifespan and requires less maintenance, improving the reliability of long-term use. Each step of the threaded sleeve triggers the corresponding positioning block in sequence. The structure is highly expandable and achieves highly reliable, low-cost, and user-friendly segmented heat therapy control with a minimalist structure. It is especially suitable for home passive physiotherapy equipment for middle-aged and elderly rheumatoid patients.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another perspective view of the overall structure of the present invention; Figure 3 This is a bottom view of the knee brace body of the present invention; Figure 4 This is a side sectional view of the casing of the present invention; Figure 5 This is a diagram showing the internal structure of the casing of the present invention; Figure 6 The following are structural diagrams of the fixing column of this invention; Figure 7 This is another perspective view of the fixing column of the present invention; Figure 8 The relevant structural diagrams of the threaded sleeve of this invention are shown below; Figure 9 This is a schematic diagram showing the exploded state of the threaded sleeve of the present invention; Figure 10 The relevant structural diagrams of the guide plate of this invention are shown below; Figure 11 This is a side sectional view of the guide plate of the present invention; Figure 12 This is a schematic diagram showing the exploded state of the sliding rod of the present invention; Figure 13 The diagram shows the relevant structure of the sliding rod of this invention.

[0019] In the diagram: 1. Knee brace body; 11. Lower fixing strip; 12. Upper fixing strip; 13. Control panel; 2. Receiving box; 21. Cover; 22. Micro motor; 23. Output shaft; 24. Drive wheel; 25. Chain; 26. Driven wheel; 27. Driven shaft; 28. Rewinding rod; 29. ​​Heat storage plate; 3. Threaded disc; 31. Fixing post; 32. Threaded sleeve; 33. Limiting rod; 34. Guide plate; 35. Sliding rod; 36. Positioning rod; 37. Left electromagnet; 38. Magnet; 39. Right electromagnet; 310. Spring 1; 4. Airbag; 41. Positioning block; 42. Support rod; 43. Spring 2; 44. Support plate; 401. Inclined groove; 402. Rectangular groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0021] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] Please see Figures 1 to 8 The present invention provides the following technical solutions: Example 1: A heating and nursing device for rheumatic immune knee joints, comprising a knee brace body 1, a lower fixing strip 11 and an upper fixing strip 12 for fixing the knee brace body 1, and a control panel 13 for controlling the heating mode. The knee brace body 1 is provided with a switching assembly for switching the heat storage element. The switching assembly includes: a housing box 2, a cover 21, a micro motor 22, an output shaft 23, a drive wheel 24, a chain 25, a driven wheel 26, a driven shaft 27, a winding rod 28, and a heat storage plate 29. The housing 2 is inserted into the knee brace body 1. The housing 2 is used to house the heat storage component. The micro motor 22 is used to provide power for switching the heat storage plate 29. One end of the output shaft 23 is fixedly installed on the output end of the micro motor 22 through a coupling. The output shaft 23 is used to transmit the power of the micro motor 22. The power wheel 24 is fixedly installed on the output shaft 23. The driven wheel 26 is fixedly installed on the driven shaft 27. The driven wheel 26 is connected to the power wheel 24 through a chain 25. One end of the winding rod 28 is fixedly installed on the bottom of the driven shaft 27. The winding rod 28 and the output shaft 23 are both movably installed in the housing 2 through bearings. One end of the heat storage plate 29 is fixedly installed on the winding rod 28. The heat storage plate 29 is wound and stored in the housing 2 through the winding rod 28. After heat storage, the heat storage plate 29 is used for knee joint care.

[0023] When in use, patients perform daily self-care at home, especially when joint stiffness is significant in the morning, or at night or in cold weather. The knee brace is worn on the joint requiring heating and secured to the patient using the lower fixing strip 11 and upper fixing strip 12. The lower fixing strip 11 and upper fixing strip 12 can be in the form of Velcro, buttons, or other existing technologies with equivalent effects. The heating unit installed in the housing 2 at the winding rod 28 heats the heat-storing plate 29 to a suitable temperature. The heating unit can specifically use heating wire, heating block, or other existing technologies with equivalent function to heat the heat storage plate 29 on the take-up rod 28. Then, the control panel 13 controls the micro motor 22 to start, which drives the output shaft 23 to rotate. The output shaft 23 drives the power wheel 24 to rotate. The power wheel 24 is connected to the driven wheel 26 through a chain 25, thereby driving the driven wheel 26 to rotate synchronously. Through the driven shaft 27, the take-up rod 28 rotates synchronously, causing the heated heat storage plate 29 to rotate from the take-up rod 28. Figure 4 It is released from the take-up bar 28 on the right side, and after passing through the middle area, it is wound around... Figure 4 On the left-hand winding rod 28, both ends of the heat storage plate 29 between the left and right winding rods 28 have an auxiliary strip. The auxiliary strip does not have a heat storage effect; it only serves as a transmission guide to ensure that the heat storage plate 29 can be driven from the left-hand winding rod 28. Figure 4 The winding rod 28 on the right side is moved to... Figure 4 On the left-hand winding rod 28, or from Figure 4The left-hand winding rod 28 moves to Figure 4 On the right-hand winding rod 28 shown; when Figure 4 When all the heat-retaining plates 29 in the central area are heated, the micro motor 22 is paused via the control panel 13, allowing the heated heat-retaining plates 29 to release heat, thereby heating the patient's knee joint, keeping it warm, and promoting local blood circulation, thus relaxing muscles and relieving stiffness. Figure 4 When the temperature of the heat storage plate 29 in the middle area drops below the set temperature, the micro motor 22 is controlled to run again via the control panel 13, causing the hotter heat storage plate 29 in the container 2 to move again. Figure 4 The central area shown releases heat to provide heating care to the patient until the patient's condition is relieved and no longer needs to be used. All electrical appliances can be powered by the battery module integrated in the housing 21.

[0024] Please see Figures 9 to 11 The present invention provides the following technical solutions: Example 2, the technical solution of this example that differs from the previous example includes: a locking assembly for locking the heat storage component after switching is provided in the knee pad body 1. The locking assembly includes: a threaded disc 3, a fixing post 31, a threaded sleeve 32, a limiting rod 33, a guide plate 34, a sliding rod 35, a positioning rod 36, a left electromagnet 37, a magnet 38, a right electromagnet 39, and a spring 310. The threaded disc 3 is fixedly mounted on the driven shaft 27. The threaded disc 3 can rotate with the driven shaft 27, thus providing a trigger condition for the locking assembly. The bottom of the fixing post 31 is fixedly mounted on the top of the threaded disc 3. The surface of the fixing post 31 has a fixing hole, which cooperates with the positioning rod 36 to lock the position of the driven shaft 27 after switching. The threaded sleeve 32 is threadedly fitted onto the threaded disc 3, and the threaded sleeve 32 and the threaded disc 3 are threadedly engaged. One end of the limiting rod 33 is fixedly mounted on the threaded sleeve 32. The bottom of the guide plate 34 is fixedly mounted on the top of the receiving box 2. The guide plate 34 is slidably fitted onto the other end of the limiting rod 33. The guide plate 34 is used to control the limiting rod 33. The guide and limit mechanism includes a sliding rod 35, one end of which slides through a limiting rod 33; a positioning rod 36, one end of which is fixedly mounted on the sliding rod 35; and a fixing hole of the other end of which is adapted to the size of the fixing hole. The bottom of the left electromagnet 37 is fixedly mounted on the limiting rod 33. A magnet 38 is fixedly embedded in the sliding rod 35. The magnet 38 and the energized left electromagnet 37 magnetically cooperate to change the position. The bottom of the right electromagnet 39 is fixedly mounted on the limiting rod 33. The right electromagnet 39 and the magnet 38 magnetically cooperate to change the position of the sliding rod 35. One end of a spring 310 is fixedly mounted on the sliding rod 35, and the other end of the spring 310 is fixedly mounted in a threaded sleeve 32.

[0025] During use, the micro motor 22 is started via the control panel 13. During the nursing process, the driven wheel 26 drives the winding rod 28 to rotate, which in turn moves the heat storage plate 29 to provide gentle heat therapy to the patient's knee joint. At the same time, the driven shaft 27 drives the threaded disc 3 to rotate. The threaded disc 3 and the threaded sleeve 32 are threadedly engaged, and the threaded sleeve 32 provides support for the limiting rod 33. The limiting rod 33 and the guide plate 34 are slidably engaged. The receiving box 2 provides support for the guide plate 34, so that the threaded sleeve 32 can move vertically along the guide plate 34 when the threaded disc 3 rotates. When the threaded sleeve 32 drives the limiting rod 33 to move vertically along the guide plate 34, the limiting rod 33 simultaneously drives the sliding rod 35 to move vertically. The displacement sensor installed at the bottom of the limiting rod 33 detects the moving distance. In the initial state, the distance value detected by the displacement sensor is A. When the auxiliary strip at the front end of the heat storage plate 29 is completely rolled up, the heat storage plate 29 is filled for the first time. Figure 4 When the displacement sensor detects a distance of B in the middle region shown, the left electromagnet 37 and the right electromagnet 39 are simultaneously energized. This causes the left electromagnet 37 to repel the magnet 38, while the right electromagnet 39 attracts the magnet 38. This causes the magnet 38 to move the sliding rod 35 horizontally along the limiting rod 33, which in turn moves the positioning rod 36 horizontally. The positioning rod 36 then inserts into the fixing hole on the surface of the fixing post 31. A pressure strain gauge mounted on the side of the positioning rod 36 detects lateral pressure exceeding a preset value, causing the micro motor 22 to pause. This keeps the heat storage plate 29 in its current position for a period. Then, the magnetism of the energized left electromagnet 37 and right electromagnet 39 is reversed, causing the positioning rod 36 to move out of the fixing post 31. The micro motor 22 then restarts, causing the heat storage plate 29 to expand and contract, and the limiting rod 33 to move upwards until it reaches the next height. Figure 4 The heat storage plate 29, which has released all its heat energy in the middle area shown, is completely replaced. Simultaneously, the positioning rod 36 is inserted into the fixing hole at the current height. At this point, the distance value of the displacement sensor is C. Similarly, when the limiting rod 33 moves to its highest point, the distance value of the displacement sensor is D. This indicates that the heat storage plate 29 on one side of the winding rod 28 has been completely released, and the last section of the heat storage plate 29 is in... Figure 4 Perform exothermic treatment within the central area shown; If the patient's condition is still not effectively relieved at this time, the heating unit is immediately started to heat the heat storage plate 29 on the other winding rod 28. The next time it runs, the micro motor 22 rotates in the opposite direction, causing the limit rod 33 to descend from height D back to height C. After a period of time, the heat storage plate 29 switches again until the limit rod 33 descends back to height B. The above operation is repeated again, and so on, until the patient's condition is effectively relieved.

[0026] Please see Figures 12 to 13 The present invention provides the following technical solutions: Example 3, the technical solution of this example that differs from the previous examples includes: a locking component for locking the heat storage component after switching is provided in the knee pad body 1, and the locking component also includes: airbag 4, positioning block 41, support rod 42, spring 43, support plate 44, inclined groove 401, and rectangular groove 402. The airbag 4 is fixedly installed inside the limiting rod 33. The airbag 4 can be compressed and inflated upwards when the sliding rod 35 moves towards the guide plate 34, thereby squeezing the positioning block 41 towards the guide plate 34. One end of the positioning block 41 slides through the guide plate 34. One end of the positioning block 41 has an inclined surface. The positioning block 41 cooperates with the pressure strain gauge at the top of the limiting rod 33 to limit the position of the limiting rod 33. The side wall of the support rod 42 is fixed to one end of the positioning block 41. The support plate 4... One end of the airbag 4 is fixedly installed on the guide plate 34. One end of the support rod 42 slides through the support plate 44. One end of the second spring 43 is fixedly installed on the support rod 42. The other end of the second spring 43 is fixedly installed in the support plate 44. The inclined groove 401 is opened on the limiting rod 33. The inclined groove 401 is slidably adapted to the inclined surface of the positioning block 41. The rectangular groove 402 is opened on the limiting rod 33. The rectangular groove 402 is adapted to the size of the airbag 4, so that the airbag 4 can squeeze the positioning block 41 to move after it expands.

[0027] During use, the position of the limiting rod 33 is determined without using a displacement sensor to measure the distance, avoiding tilting errors during the wearing of the knee pad body 1, which could prevent the positioning rod 36 from being inserted into the fixing hole. Instead, a support plate 44, matching the number of fixing holes, is installed on the guide plate 34. A support rod 42 is slidably installed within the support plate 44, providing support to the positioning block 41. Simultaneously, a rectangular groove 402 is formed within the limiting rod 33, and an inclined groove 401 is formed at the top of the rectangular groove 402. The inclined surface of the inclined groove 401 interacts with the positioning block 41. The inclined planes slide and adapt to each other, and a pressure strain gauge is installed on the top of the limiting rod 33. After the limiting rod 33 moves upward and abuts against the bottom of the positioning block 41, when the pressure value is detected by the pressure strain gauge, the locking mechanism is triggered. That is, the left electromagnet 37 and the right electromagnet 39 are energized, so that the positioning rod 36 is inserted into the fixing hole, and the micro motor 22 stops running. After a period of time, the temperature of the heat storage plate 29 drops. By switching the magnetism of the left electromagnet 37 and the right electromagnet 39 after they are energized, the sliding rod 35 moves towards the bottom. Figure 11 When the position is reset as shown, the sliding rod 35 squeezes the airbag 4, causing the airbag 4 to expand and push the positioning block 41 a certain distance outward from the guide plate 34. Then, when the limiting rod 33 continues to move upward under the drive of the threaded sleeve 32, the inclined groove 401 abuts against the inclined surface of the positioning block 41 and pushes the positioning block 41 out of the moving path of the limiting rod 33, thus completing the unlocking and continuing to switch the heat storage plate 29.

[0028] In another possible embodiment that differs from the foregoing embodiments, the number of rotating components is reduced. Instead of the two sets on the top and two sets on the bottom of the knee brace body 1 shown in the accompanying drawings, only one set is used on both the top and bottom sides of the knee brace body 1. This reduces the number of electronic components such as the micro motor 22, the left electromagnet 37, and the right electromagnet 39, thereby reducing the equipment production cost.

[0029] In another embodiment, distinct from the aforementioned embodiments, the heating unit is maintained at the winding rod 28, but the operating time of the heating unit is changed so that the outermost heat storage plate 29 is heated for a shorter time than the innermost heat storage plate 29. This creates a temperature difference between the inner and outer layers of the wound heat storage plate 29, resulting in the outermost heat storage plate 29 having the lowest temperature and moving to the innermost layer first. Figure 4 The middle area is used for heat dissipation. During the process, the heating unit is still running, so that the temperature of the heat storage plate 29 released later is higher than that of the heat storage plate 29 released earlier. This makes the heating care for the patient gentle and gradually warms up, reducing stimulation and making it easier to accept. Furthermore, it can be positioned directly opposite the outside of the housing 2. Figure 4 A temperature sensor is added to the heat storage plate 29 in the middle area to accurately determine whether the temperature of the heat storage plate 29 has been fully released.

[0030] In another embodiment, which differs from the aforementioned embodiment, the heating unit inside the receiving box 2 is removed, and the receiving box 2 is detachably installed inside the knee brace body 1 using any quick-change structure in the prior art. The heat storage method of the heat storage plate 29 is to use a temperature source other than the knee brace body 1 for heat storage. When one of the receiving boxes 2 and its heat storage plate 29 is being used and the heat storage is about to end but has not yet subsided, the heat storage operation is performed on the heat storage plate 29 in another set of receiving boxes. When the temperature of the heat storage plate 29 on one side of the winding rod 28 has been released, the receiving box 2 in the knee brace body 1 is removed and replaced with another set that has completed heat storage.

[0031] In another embodiment, which differs from the aforementioned embodiment, the replaceable container 2 and its heat storage plate 29 are configured in two types. One type of heat storage plate 29 contains heat storage material, and the other type contains cold storage material. Patients can change to different types of container 2 and heat storage plate 29 according to their nursing needs, so that they can apply both hot and cold compresses. This allows patients in the acute redness and swelling stage to apply cold compresses in time to relieve symptoms before seeking medical attention and alleviating pain.

[0032] This invention also provides an operating method for a heating and nursing device for rheumatic and immune knee joints, comprising the following steps: S1. Put the knee brace body 1 on the knee joint and fix the position of the knee brace body 1 using the lower fixing strip 11 and the upper fixing strip 12. Select the care mode through the control panel 13. S2. The heat storage plate 29 is switched according to the heat release progress by the rotation component; S3. After the heat storage plate 29 has been switched, the switched heat storage plate 29 is fixed by the locking assembly; S4. Switch the startup method of the locking component according to the usage scenario; S5. After completing the care of the knee joint, remove the lower fixation strip 11 and the upper fixation strip 12, and remove the knee brace body 1.

[0033] The switching speed of the heat storage plate 29 by the rotating component is between 10-30 cm / min.

[0034] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages: By continuously releasing multiple heat storage zones, the effective heat therapy time can be extended to 2-4 hours or even longer; The entire process requires no external power supply and no replacement of the entire module; Energy is sustained solely through mechanical unwinding, extending the duration of a single treatment session; Patients can decide whether to continue rolling based on the degree of pain relief, thus improving resource utilization. Reduce usage costs and avoid the fluctuations from overheating to cooling to reheating caused by temperature control lag in traditional electric heating films, which better meet the needs of rheumatism patients for continuous and gentle heat therapy. Forced single-stage operation ensures that heat output remains within a safe temperature range; This forces users to fully utilize the current segment, reducing energy waste from the heat storage plates; To avoid users overusing the product in their eagerness for relief, it conforms to the principle of gradual recovery; Users do not need to judge whether to place a new segment. The device provides clear behavioral boundaries through locking, which is especially suitable for middle-aged and elderly rheumatism patients with cognitive decline. Longer lifespan, less maintenance, and improved long-term reliability; Each time the threaded sleeve 32 rises one layer, the corresponding positioning block 41 is triggered sequentially, resulting in a highly scalable structure. With its minimalist structure, it achieves highly reliable, low-cost, and user-friendly segmented thermotherapy control, making it particularly suitable as a home-use passive physiotherapy device for middle-aged and elderly rheumatism patients.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0038] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0039] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A knee joint heating and care device for rheumatic immune diseases, comprising a knee brace body (1), a lower fixing strip (11) and an upper fixing strip (12) for fixing the knee brace body (1), and a control panel (13) for controlling the heating mode, characterized in that: The knee brace body (1) is provided with a switching assembly for switching the heat storage element and a locking assembly for locking the heat storage element after switching. The switching assembly includes: The housing (2) is inserted inside the knee brace body (1) to house the heat storage component; The heat storage plate (29) is wound and stored in the container (2) by the winding rod (28) and used for knee joint care after heat storage; A micro motor (22) is connected to the winding rod (28) via a driven shaft (27) to provide power to the switching heat storage plate (29).

2. The heating and nursing device for rheumatic immune knee joints according to claim 1, characterized in that: The locking component includes: The threaded disc (3) is fixed on the driven shaft (27) and rotates with the driven shaft (27) to provide triggering conditions for the locking assembly; The fixed column (31) is fixed at the bottom of the threaded disc (3) and has a fixing hole on its surface to lock the position of the driven shaft (27) after switching. The threaded sleeve (32) is located outside the threaded disc (3) and is threadedly fitted with the threaded disc (3).

3. The heating and nursing device for rheumatic immune knee joints according to claim 2, characterized in that: The locking component further includes: The limiting rod (33) is fixed at one end to the threaded sleeve (32); The guide plate (34) is fixed at the bottom of the receiving box (2) and sleeved on the other end of the limiting rod (33) to guide and limit the limiting rod (33); The sliding rod (35) has one end slidably inserted inside the limiting rod (33); The positioning rod (36) is fixed at one end to the sliding rod (35), and the other end is adapted to the size of the fixing hole.

4. A heating and nursing device for rheumatic immune knee joints according to claim 3, characterized in that: The locking component further includes: The left electromagnet (37) is fixed at the bottom to the limiting rod (33); A magnet (38) is fixedly embedded in a sliding rod (35) and magnetically engages with a left electromagnet (37) after it is energized, thereby changing its position; The right electromagnet (39) is fixed at the bottom on the limit rod (33). When energized, it magnetically engages with the magnet (38) to change the position of the sliding rod (35). Spring 1 (310) has one end fixed to the sliding rod (35) and the other end fixed inside the threaded sleeve (32).

5. A heating and nursing device for rheumatic and immune knee joints according to claim 1, characterized in that: The rotation component also includes: The output shaft (23) is fixed to the output end of the micro motor (22) and transmits the power of the micro motor (22); The drive wheel (24) is fixed on the output shaft (23); The driven wheel (26) is fixed on the driven shaft (27) and is connected to the drive wheel (24) via a chain (25).

6. The heating and nursing device for rheumatic immune knee joints according to claim 1, characterized in that: The locking component further includes: A displacement sensor, fixed to the bottom of the limit rod (33), is used to detect the distance between the limit rod (33) and the top of the receiving box (2), thereby confirming the activation timing of the locking assembly.

7. A heating and nursing device for rheumatic immune knee joints according to claim 3, characterized in that: The locking component further includes: The airbag (4) is fixed inside the limiting rod (33); The positioning block (41) slides through the guide plate (34) at one end and has an inclined surface at the other end, which cooperates with the pressure strain gauge at the top of the limiting rod (33) to limit the position of the limiting rod (33); The support rod (42) is fixed at one end to the positioning block (41) on its side wall; The support plate (44) is fixed at one end to the guide plate (34); Spring 2 (43) has one end fixed to the support rod (42) and the other end fixed inside the support plate (44).

8. A heating and nursing device for rheumatic and immune knee joints according to claim 7, characterized in that: The locking component further includes: An inclined groove (401) is provided on the limiting rod (33) and is adapted to slide on the inclined surface of the positioning block (41); A rectangular groove (402) is provided on the limiting rod (33) and is adapted to the size of the airbag (4) so ​​that the airbag (4) can squeeze the positioning block (41) to move after it expands.

9. An operating method applicable to the heating and nursing device for rheumatic and immune knee joints as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Put the knee brace (1) on the knee joint and fix the position of the knee brace (1) using the lower fixing strip (11) and the upper fixing strip (12). Select the nursing mode through the control panel (13). S2. The heat storage plate (29) is switched according to the heat release progress by the rotation component. S3. After the heat storage plate (29) has been switched, the switched heat storage plate (29) is fixed by the locking assembly; S4. Switch the startup method of the locking component according to the usage scenario; S5. After completing the care of the knee joint, remove the lower fixing strip (11) and the upper fixing strip (12), and remove the knee brace body (1).

10. The operating method of the heating and nursing device for rheumatic immune knee joints according to claim 9, characterized in that: The speed at which the switching component switches the heat storage plate (29) is between 10-30 cm / min.

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