Knee joint health care device based on traditional Chinese medicine external therapy

Abstract

The invention relates to a knee joint health care device based on traditional Chinese medicine external therapy. The device comprises a belt body, a massage assembly, a moxibustion assembly, a traction assembly and a hot compress assembly. The massage assembly comprises magnetic beads, and the magnetic beads are arranged on the inner side of the belt body around the patella. The moxibustion assembly comprises laser probes, and the laser probes are installed at the positions, corresponding to inner and outer knee eyes, of the belt body. The traction assembly comprises air bags, and the air bags are embedded into the two sides of the belt body; the hot compress assembly comprises heating elements, and the heating elements are distributed on the lining part of the belt body. Compared with the prior art, convenient and safe knee joint nursing is achieved, and the family nursing requirements of knee arthritis patients are met.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices and relates to a knee joint health care device based on traditional Chinese medicine external treatment. Background Art

[0002] Knee arthritis has a high incidence rate among the elderly, seriously affecting the quality of life of patients. Traditional Chinese medicine massage and moxibustion have significant effects on relieving the symptoms of knee arthritis, but traditional treatments require patients to go to the hospital, which is inconvenient. The knee joint care devices on the market have a single function and cannot provide comprehensive treatment effects.

[0003] Patent CN210226985U discloses a simulated massage and moxibustion knee pad device for relieving knee joint pain, including a knee pad body; a massage module and a simulated moxibustion module are provided on the back of the knee pad body; the massage module is composed of a magnetic disk, a massage ball and an AC intelligent control unit, the magnetic disk is an electromagnetism device, the massage ball is rotatably connected to the magnetic disk through a rotating shaft, and a fixed magnetic needle perpendicular to the rotating shaft is arranged in the massage ball; the AC intelligent control unit is electrically connected to the electromagnetism device, and the AC intelligent control unit controls the magnetic field direction of the magnetic disk by controlling the current direction of the electromagnetism device; the simulated moxibustion module is a simulated moxibustion device combining far infrared and visible light, and the simulated moxibustion module is composed of a far infrared light source, a visible light source and a power supply base.

[0004] The main defects of this patent are:

[0005] Single function: the patented device only has the functions of massage and simulated moxibustion, and does not include traction and comprehensive hot compress functions;

[0006] The massage effect is limited. The patent adopts the method of fixed magnetic needles and ball massage, which is difficult to provide deep and multi-dimensional massage effects, and lacks comprehensive coverage and rolling effects on key acupoints.

[0007] Patent CN110959934A discloses a graphene thermal kneepad with meridian and acupoint massage function. It combines ordinary kneepads with human meridians and acupoints, and marks the meridian circulation and acupoints on the surface of the kneepad so that users can find relevant acupoints around the knee joint more scientifically. At the same time, the device uses the good heating and thermal conductivity of the graphene heating film to provide constant temperature thermal stimulation for the meridians and acupoints around the knee joint, and the far-infrared light waves further promote blood circulation, thereby achieving the effect of improving the environment around the knee joint and preventing and treating knee osteoarthritis.

[0008] However, the patent has the following deficiencies, especially in terms of the hot compress function:

[0009] The heating method is single. The patent only relies on the graphene heating film for heating, and cannot achieve multi-level hot compress adjustment. Users cannot adjust the temperature and hot compress intensity according to their own needs. The hot compress effect is difficult to meet the personalized needs of different patients.

[0010] Insufficient constant temperature control. Although the graphene heating film in the patent can provide constant temperature heating, it lacks an automatic temperature control mechanism. Long-term use may cause overheating risks and may cause irritation or burns to the skin.

[0011] The coverage of hot compress is limited. Since the heating element of the patent is only a single-layer graphene membrane, the heat distribution is relatively concentrated and can only provide surface warm stimulation, which is difficult to achieve the physical therapy effect of deep tissues;

[0012] Lacking multifunctional integration, the patent only provides a single hot compress function of the graphene heating film and lacks other physical therapy functions such as massage and traction. The hot compress has a single effect and has limited effects on the health care and treatment of the knee joint.

[0013] Patent CN204951543U discloses an upper limb acupoint air pressure massager, which includes a cuff, an air inlet pipe, an exhaust pipe, a plurality of massage magnetic beads and an air pressure pump; its structure consists of an outer TPU cloth layer, a middle TPU cloth layer and an inner TPU cloth layer, and air is filled between the outer TPU cloth layer and the middle TPU cloth layer. The air is inflated and deflated to produce a certain air pressure massage effect on the massage magnetic beads, so as to achieve a massage effect on the upper limb acupoints.

[0014] However, the patent has the following shortcomings, especially in terms of traction function, and has the following limitations:

[0015] Lack of traction design for knee joints. The patented air pressure massager is mainly suitable for upper limbs. The structural design is not optimized for the anatomical characteristics of the knee joint, making it difficult to play an effective traction role in knee joint care.

[0016] The traction force and pressure control are insufficient. The air pressure massager of this patent only inflates the air bag through the air pressure pump, and does not accurately control the pressure and traction force. It lacks adjustment function and is difficult to adapt to the traction needs of different users.

[0017] Lack of safety control and protection mechanism. The patent is not equipped with a pressure detection mechanism. Long-term or high-intensity air pressure massage may have adverse effects on joints and soft tissues.

[0018] The integration of traction and other physical therapy functions is insufficient. The patented air pressure massager only has a single air pressure massage function and cannot provide multifunctional combined therapeutic effects such as traction, massage and hot compress. Summary of the invention

[0019] The purpose of the present invention is to provide a knee joint health care device based on traditional Chinese medicine external treatment in order to overcome at least one defect of the above-mentioned prior art. The present invention realizes convenient and safe knee joint care and meets the home care needs of patients with knee arthritis.

[0020] The purpose of the present invention can be achieved by the following technical solutions:

[0021] One of the technical solutions of the present invention is to provide a knee joint health care device based on traditional Chinese medicine external treatment, the device comprising a belt body, a massage component, a moxibustion component, a traction component and a hot compress component;

[0022] The massage assembly includes magnetic beads arranged on the inner side of the belt body around the patella;

[0023] The moxibustion assembly includes a laser probe, which is installed on the belt body at the positions corresponding to the inner and outer knee holes;

[0024] The traction assembly includes air bags embedded in both sides of the belt body;

[0025] The hot compress assembly comprises heating elements which are distributed on the inner lining part of the belt body.

[0026] Furthermore, the material of the belt body includes polyurethane, neoprene or nylon;

[0027] Connectors are arranged on both sides of the belt body, and the connectors include Velcro, snaps or elastic belts.

[0028] Furthermore, the magnetic beads are driven to roll by an electric drive motor, and the electric drive motor includes a stepper motor or a brushless DC motor;

[0029] The material of the magnetic beads includes medical grade stainless steel 304L or 316L, the shape of the magnetic beads is spherical, and the diameter of the magnetic beads is 8 to 10 mm;

[0030] The rolling frequency of the magnetic beads is 80 to 160 times / min, and the force is 1 to 10 kg.

[0031] Furthermore, the shell material of the laser probe includes aluminum alloy, stainless steel or engineering plastics, the diameter of the laser probe is 1 to 3 cm, and the front end of the laser probe is covered with polydimethylsiloxane (PDMS), silicone rubber or transparent polyurethane material;

[0032] The laser probe emits far-infrared light with a wavelength of 700-900nm, a temperature of 40-50°C, and an output power of 0.5-1W.

[0033] Furthermore, a temperature sensor is arranged on the surface of the laser probe.

[0034] Further, the airbag is inflated or deflated by an air pump and is equipped with a pressure regulating deflation valve;

[0035] The material of the airbag includes silicone rubber, polyurethane or nitrile rubber, and the wall thickness of the airbag is 0.1-1 mm;

[0036] The maximum inflation pressure of the airbag is 0.1-0.5 bar, and the traction force is 10-30N.

[0037] Furthermore, a pressure sensor is installed in the airbag.

[0038] Furthermore, the heating element includes a graphene heating film, a carbon fiber heating wire or a positive temperature coefficient (PTC) ceramic heating sheet, and the thickness of the heating element is 0.01 to 0.03 mm, and the power is 5 to 15 W;

[0039] The temperature of the heating element is 40-50°C.

[0040] Furthermore, a temperature sensor is arranged on the surface of the heating element.

[0041] Furthermore, the device further comprises a control component, which comprises a central control unit, a control panel and a display screen, and the control component is connected to the massage component, the moxibustion component, the traction component and the hot compress component;

[0042] The control component sets different operation priorities for each function, giving priority to functions with higher safety levels, and monitors the status of the knee in real time through sensors;

[0043] Highest priority, traction components;

[0044] When the user sets the traction force close to the maximum traction force, the device will reduce the intensity of massage and hot compress, the massage component will be adjusted to a low-frequency mode below the set range, and the hot compress temperature will be reduced below the set range;

[0045] Next highest priority, massage component;

[0046] When the massage component is operated in a high-intensity mode above the midpoint of the setting range, the airbag pressure of the traction component is limited to 2 / 3 of the maximum inflation pressure;

[0047] The third priority is the hot compress component;

[0048] When the temperature of the hot compress component is higher than the middle value of the set range, the massage component is limited to the medium and low frequency mode within 1 / 4 of the set range, and the traction component is limited to the force range of 2 / 3 of the maximum inflation pressure;

[0049] Lowest priority, moxibustion component;

[0050] When the traction pressure exceeds the set range or the hot compress temperature is higher than the set range, the moxibustion component will enter the standby state;

[0051] Control components have built-in mutual exclusion mechanisms;

[0052] The exclusion mechanism of traction and hot compress: when the traction component is in a high-intensity mode exceeding the set range, the temperature of the hot compress component will be automatically limited to below the median value of the set range; when the hot compress temperature exceeds the set range, the traction component will automatically switch to a low-intensity mode of 2 / 3 of the maximum inflation pressure to reduce direct physical effects on the knee joint;

[0053] Massage and traction are mutually exclusive. When both are activated at the same time, the control component determines whether the sum of the massage force and the traction force exceeds the safety range through sensor feedback; if the massage force is close to the maximum value, the device will reduce the traction force;

[0054] The coordination and limitation of hot compress and moxibustion: when the hot compress temperature exceeds the set range or the moxibustion output power exceeds the set range, the device will shut down the moxibustion function first;

[0055] The control component adjusts the operation of the component based on the sensor data to ensure operation within a safe range;

[0056] Temperature adjustment mechanism: The temperature sensors equipped in the hot compress component and the moxibustion component detect the temperature changes on the skin surface in real time; when the temperature approaches or exceeds the set upper limit, the device reduces the output power of the heating element or laser; if the temperature continues to rise above the set upper limit, the device turns off the relevant heating function;

[0057] The traction adjustment mechanism, the pressure sensor in the traction assembly continuously monitors the pressure in the airbag to ensure that the traction force remains within the range set by the user; if it detects that the pressure exceeds the set upper limit, the device reduces the output power of the air pump and reduces the pressure through the air release valve; if the pressure exceeds the emergency upper limit, the device stops the traction operation and releases the pressure;

[0058] Mobile state detection and protection mechanism, the acceleration sensor detects the user's activity state; if the device detects that the user suddenly stands up or moves during use, the central control unit suspends all mechanical and heating functions; if the acceleration sensor detects that the acceleration exceeds the set stillness threshold, the device triggers the protection mode and suspends the massage, moxibustion, traction and hot compress functions until the user returns to a still state.

[0059] Compared with the prior art, the present invention has the following beneficial effects:

[0060] (1) The core technical innovation of the massage assembly of the present invention lies in its simulation of traditional Chinese medicine massage The present invention realizes deep massage of the knee joint by rolling spherical magnetic beads around the patella in multiple dimensions; the massage systems in the prior art are mostly plane vibration or local pressing, which is difficult to fully cover the key acupoints around the knee; the present invention effectively simulates the deep massage of the knee joint by rolling magnetic beads and combining with adjustable massage frequency and intensity. The massage effect of the method significantly enhances the blood circulation, stiffness relief and joint loosening effects on the knee joint;

[0061] (2) The massage component of the present invention is not only effective alone, but also highly coordinated with the traction function; when the massage and traction functions are operated synchronously, the local deep massage produced by the massage promotes the relaxation of the soft tissue around the knee joint, and enhances the comfort and safety of the traction effect; the massage component can help reduce the traction discomfort caused by muscle tension during the traction process, making the traction smoother, thereby reducing the pressure on the joints and muscles;

[0062] (3) The innovation of the moxibustion assembly of the present invention is reflected in the simulation of the warm stimulation effect of traditional Chinese medicine moxibustion through far-infrared laser; the selection of far-infrared wavelength has been verified by research to be able to penetrate deep into the subcutaneous tissue, play a role similar to moxibustion, promote local blood circulation and reduce inflammation; different from the simple hot compress in the prior art, the laser has a deeper tissue penetration and precise temperature control, avoiding the risk of burns that may occur in traditional moxibustion; the present invention specifically targets key acupuncture points of the knee joint (such as the inner and outer knee joints), and uses a laser probe to perform precise moxibustion treatment, thereby enhancing its therapeutic effect;

[0063] (4) The moxibustion function of the present invention and the hot compress component form a synergistic effect in temperature regulation and blood circulation promotion; laser moxibustion provides local deep thermal stimulation, while the hot compress component provides surface warming effect. The combination of the two can stimulate both the surface and the deep layer, further promoting the local metabolism and repair of the knee joint; in addition, when the massage component and the moxibustion component work at the same time, the massage increases the local absorption effect of the moxibustion, and the mechanical vibration generated by the massage helps to disperse the heat generated by the moxibustion, so that the thermal stimulation is evenly distributed in the entire knee joint area;

[0064] (5) The core innovation of the traction assembly of the present invention is to achieve dynamic traction of the knee joint by using the adjustable tension generated by the expansion of the airbag; unlike traditional fixed or mechanical traction, the airbag traction assembly of the present invention can be adjusted in real time according to the needs of the patient; through the feedback of the sensor, the traction assembly can accurately control the pressure of the airbag expansion to ensure that the traction force is moderate and prevent secondary injuries that may be caused by excessive traction; in addition, during the traction process, the tension of the airbag is evenly distributed on both sides of the knee joint, ensuring that the soft tissue of the joint is gradually stretched without causing discomfort;

[0065] (6) The linkage design of the traction component and the massage component of the present invention is extremely innovative; when the traction component stretches the soft tissue around the joint, the massage component can help relieve the tense muscles around the joint through the rolling of magnetic beads, making the traction process smoother and more comfortable; especially for patients with severe joint stiffness, the synchronous action of massage and traction can quickly reduce joint pressure and increase joint mobility; at the same time, the combination of hot compress function and traction function can also soften the tissue around the joint through warm stimulation, further improving the traction effect and reducing joint stiffness;

[0066] (7) The hot compress assembly of the present invention uses a built-in heating element to perform constant temperature control, ensuring that the temperature is accurately maintained and avoiding the temperature fluctuation problem commonly found in the prior art; the heating element uses efficient energy conversion technology, which can quickly generate and maintain a uniform warming effect, effectively relieving muscle tension, stiffness and pain in the knee joint; at the same time, the hot compress assembly is equipped with a temperature feedback control loop, which can automatically stop heating when the temperature is abnormal, ensuring the safety of the patient during use; compared with the traditional single hot compress device, the hot compress assembly of the present invention not only has high safety performance, but also provides more effective heat conduction;

[0067] (8) The synergistic effect of the hot compress component of the present invention and other functions is significant. First, hot compress can effectively improve the overall effect of massage and traction. When the hot compress component is activated, the surface of the knee joint and the surrounding tissues are heated, blood vessels dilate, and local metabolism is accelerated, which provides a better operating environment for massage. The mechanical vibration generated during the massage process can be transmitted more deeply to the deep tissues. In addition, the warming effect of the hot compress can also relieve the muscle tension around the knee joint during the traction process, making the traction process smoother and effectively reducing the patient's discomfort.

[0068] (9) The core technical innovation of the present invention is not only reflected in the individual functions of each component, but also in the coordination and optimal combination between them; the four functions of massage, moxibustion, traction and hot compress are seamlessly linked through the control component, and can be adjusted in real time according to the needs of the user; the control component can dynamically adjust the working parameters of each function according to the patient's knee joint status (via sensor feedback), for example, when the joint is stiff, the massage and hot compress functions are activated first, and traction and moxibustion treatment are performed after the stiffness is relieved;

[0069] (10) Each functional component (massage, moxibustion, traction, hot compress) of the present invention is coordinated by a control component to ensure that they do not interfere with each other; for example, the traction component and the hot compress component can work alternately to ensure that no excessive heat load is generated during the traction process; massage and moxibustion can be started at the same time, and the mechanical vibration generated by massage helps the thermal effect of moxibustion to be transmitted to the deep tissue faster; through moxibustion and hot compress, multiple heating components and current regulation are used to achieve dynamic temperature control, and thermal stimulation of different intensities and temperatures can be provided according to patient needs, which is more personalized and adjustable; such a design optimizes the interaction between various functions, significantly improves the overall treatment effect, and solves the problem of mutual interference and poor treatment effect of multifunctional equipment in the prior art;

[0070] (11) The limitations of the prior art are mainly single function, insufficient synergy, and limited effect. The present invention breaks through the functional barriers of traditional knee joint treatment equipment by integrating the four functions of massage, moxibustion, traction, and hot compress into one system. Each functional component can not only work alone, but also work in coordination with other components to provide comprehensive knee joint care. This multifunctional combination enables the device to relieve pain, promote blood circulation, and enhance joint flexibility during the treatment process, and the treatment time is shortened, with more significant effects.

[0071] (12) Compared with the single-function devices currently on the market, the present invention achieves a more efficient comprehensive treatment effect through an optimized interaction mechanism; existing massage or hot compress devices can only provide local treatment effects, and often require patients to undergo moxibustion or traction treatment separately, which increases the burden on patients; the present invention uses integrated technology to achieve multiple treatment methods in one device at the same time, significantly improving the patient's convenience of use and treatment effect;

[0072] (13) The present invention aims to provide a convenient and effective knee joint care method for patients with knee arthritis; the device combines traditional Chinese medicine massage, moxibustion, traction and hot compress therapy, and simulates the The massage method simulates moxibustion through a far-infrared laser probe, and adds an airbag knee joint traction function and an adjustable temperature hot compress function; the device is easy to operate, safe and non-invasive, and is suitable for daily home care of patients with knee arthritis. It has good analgesic, anti-inflammatory, and stiffness relief effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 It is a schematic diagram of the main structure of a knee joint health care device based on TCM external treatment in an embodiment of the present invention;

[0074] Figure 2 It is a schematic cross-sectional structural diagram of the airbag of the knee joint health care device based on the external treatment method of traditional Chinese medicine in an embodiment of the present invention.

[0075] Description of the markings in the figure:

[0076] 1—belt body, 2—connector, 3—magnetic bead, 4—laser probe, 5—air bag, 6—heating element. DETAILED DESCRIPTION

[0077] The present invention is described in detail below in conjunction with specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0078] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used to describe common objects, which only refer to different instances of the same object, and are not intended to imply that the objects described in this way must adopt a given order, whether in time, space, order or any other way.

[0079] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] Example:

[0081] A knee joint health care device based on traditional Chinese medicine external treatment, such as Figure 1 and Figure 2 As shown, it includes a belt body 1, a massage component, a moxibustion component, a traction component, a hot compress component and a control component;

[0082] The belt body 1 structure, the belt body 1 is the core frame of the device, and is made of a flexible material with high elasticity and good air permeability, such as polyurethane, chloroprene rubber (Neoprene) or nylon, to ensure the softness, durability and air permeability of the belt body 1, and is comfortable to wear. In this embodiment, polyurethane is preferably used;

[0083] Function of belt body 1: The design of belt body 1 is ergonomic and can fit closely around the knee, ensuring that each functional component of the device can accurately act on a specific part around the knee joint;

[0084] Connectors 2 are provided on both sides of the belt body 1. The connectors 2 include Velcro, snaps or elastic bands to ensure firmness when worn and facilitate tightness adjustment according to the size of the knee, so as to facilitate fixation and adjustment and ensure that the device fits the knee joint firmly. Velcro is preferred in this embodiment;

[0085] The massage assembly comprises a plurality of magnetic beads 3 and an electric drive motor. The magnetic beads 3 are arranged around the patella in a magnetic disk on the inner side of the belt body 1 and are driven by the electric drive motor to roll, ensuring the smooth and precise movement of the magnetic beads 3 to ensure a uniform massage effect. The electric drive motor comprises a stepping motor or a brushless DC motor, and is preferably a brushless DC motor in this embodiment;

[0086] Working principle of the massage component: when the device is turned on, the magnetic beads 3 will roll around the patella at the set frequency and strength, simulating the Chinese medicine massage. The rolling action of magnetic beads 3 can promote local blood circulation, relieve joint stiffness and reduce pain;

[0087] Massage component adjustment: users can adjust the frequency and strength of the rolling of the magnetic beads 3 through the control panel or mobile phone application to ensure that the massage effect is suitable for the needs of different patients;

[0088] The material of the magnetic beads 3 is medical grade stainless steel 304L or 316L, which has high corrosion resistance and good mechanical properties, and will not rust or degrade due to long-term contact with human skin and sweat. In this embodiment, medical grade stainless steel 304L is preferably used; the shape of the magnetic beads 3 is spherical, and the spherical design ensures that the knee joint and surrounding muscles are subjected to gentle rolling friction during the massage process; the diameter of the magnetic beads 3 is set to 8-10mm, ensuring that the magnetic beads 3 can cover the main acupuncture points around the knee joint and achieve deep massage by rolling. In this embodiment, 9mm is preferably used;

[0089] In this embodiment, medical grade stainless steel 304L is preferably used as the material of the magnetic beads 3 for the following reasons:

[0090] High corrosion resistance. Due to its low carbon content, 304L stainless steel has excellent corrosion resistance and is particularly suitable for applications with long-term contact with human skin. Under conditions of long-term contact with human skin, sweat and other liquids, 304L stainless steel can effectively prevent rust, ensuring that the magnetic beads 3 maintain material stability and durability during use;

[0091] Good mechanical properties, 304L stainless steel has excellent strength and toughness, and can withstand long-term rolling and friction without deformation; in the device, the magnetic beads 3 need to be continuously rolled to achieve a deep massage effect; the strength of 304L stainless steel enables the magnetic beads 3 to maintain their shape and function under high-frequency rolling;

[0092] Biocompatibility: 304L stainless steel is a medical-grade material with good biocompatibility and is not prone to skin allergies or other adverse reactions. Compared with other materials, 304L has stable chemical properties, which reduces the potential risk of tiny particles produced by corrosion or degradation of the material to the skin and health.

[0093] Cost and processability: 304L stainless steel is widely used in the medical field and has high processability. It can be easily made into the required spherical magnetic beads 3, and the processing cost is reasonable. Compared with 316L stainless steel, 304L has a lower cost and is sufficient to meet the corrosion resistance and strength requirements in this application scenario. Therefore, 304L is preferred on the premise of meeting the functional requirements.

[0094] In summary, 304L stainless steel meets the requirements of this embodiment in terms of corrosion resistance, mechanical properties, biocompatibility and cost, and is therefore preferably used as the material of the magnetic beads 3;

[0095] In this embodiment, the diameter of the magnetic beads 3 is selected to be 9 mm, and the specific experimental conditions are as follows:

[0096] In order to ensure that the massage effect of the magnetic beads 3 around the knee joint can cover the main acupuncture points without excessive stimulation, the massage comfort, coverage and massage effect of the magnetic beads 3 at different diameters were tested for patients with knee arthritis of different ages.

[0097] Coverage test: The experiment tested the coverage effect of 8mm, 9mm and 10mm diameter magnetic beads on the main acupuncture points around the knee joint (such as the inner knee eye, outer knee eye, etc.); the 9mm magnetic beads can effectively cover these key acupuncture points during rolling and achieve a deep massage effect, while the 8mm coverage is slightly insufficient, and the 10mm size will produce a strong sense of oppression;

[0098] Comfort test: at a constant rolling frequency (140 times / min), three magnetic beads with different diameters were tested for comfort feedback on the knee joint. The rolling of 9mm magnetic beads produced the most moderate massage feeling, which can relieve stiffness without causing discomfort due to excessive diameter.

[0099] Durability and safety test: Under high-frequency rolling conditions (simulating long-term use), the rolling friction of the 9mm magnetic beads 3 around the knee joint is evenly distributed, which is not likely to cause skin discomfort or tenderness, and the medical-grade 304L stainless steel material does not experience any corrosion or wear, ensuring safety for long-term use;

[0100] Taking all factors into consideration, the 9 mm magnetic bead 3 has the best effect in terms of coverage, comfort and durability, so this diameter is selected in this embodiment;

[0101] The rolling frequency of the magnetic beads 3 is 80 to 160 times / min, preferably 140 times / min in this embodiment, and the corresponding force is 1 to 10 kg, preferably 4 kg in this embodiment;

[0102] In this embodiment, the rolling frequency of the magnetic beads 3 is preferably set to 140 times / min, the force is 4 kg, and the specific experimental conditions are as follows;

[0103] Frequency test: The experiment was conducted at different frequencies of 80 times / min, 120 times / min, 140 times / min and 160 times / min. The purpose was to evaluate the effect of different frequencies on the effect of knee joint massage. The test subjects included patients with knee arthritis of different ages. The experiment recorded the comfort, effectiveness and safety feedback at different frequencies.

[0104] 80 times / min, low-frequency rolling produces a lighter massage effect, which is suitable for patients with sensitive skin, but the effect is relatively insufficient for patients with severe stiffness or pain;

[0105] 120 times / min. The massage effect is significantly enhanced after increasing the frequency. It is suitable for general health care needs, but it is slightly lacking in effect for deep pain relief.

[0106] 140 times / min, this frequency provides the best massage depth and comfort, can effectively promote blood circulation, relieve stiffness and achieve deep massage effect, suitable for most patients;

[0107] 160 times / min. The massage force is stronger at a high frequency. Some patients reported that they felt slight discomfort. Especially for patients with sensitive skin or weak joints, the higher frequency can cause fatigue.

[0108] Taking all feedback into consideration, 140 times / min achieved the best balance between effect and comfort, and is therefore the preferred frequency for this embodiment;

[0109] Strength test: the experimental strength range was set at 1-10 kg, and the effects of different strengths such as 2 kg, 4 kg, and 6 kg on the knee joint massage effect were tested;

[0110] 2 kg, with a light massage force, suitable for sensitive skin or patients who are just starting to use it, but the effect on relieving stiffness and deep pain is limited;

[0111] 4 kg, which provides a moderate massage effect, can effectively relieve muscle tension around the knee joint and promote blood circulation. Patients report that it is comfortable and effective.

[0112] 6 kg, the massage effect is deeper after increasing the strength, but some patients report that the pressure is too high. It is suitable for users who need strong massage, but it may cause discomfort to sensitive skin;

[0113] The experimental results show that a force of 4 kg is most suitable for most patients, which can provide effective massage effects while avoiding excessive pressure. Therefore, 4 kg is preferred in this embodiment.

[0114] In summary, in this embodiment, the rolling frequency of the magnetic beads 3 is selected to be 140 times / min and the force is 4 kg to achieve the best balance between comfort and efficacy;

[0115] The electric drive motor uses a BLDC 24V 1500 RPM micro brushless DC motor, which has efficient torque output, can provide stable driving force at low power consumption, has a long service life and low noise, and is suitable for long-term use in a home environment;

[0116] The electric drive motor drives the magnetic beads 3 to roll through a set of gear transmission parts, and the transmission ratio is 1: (2-6), so that the rolling frequency of the magnetic beads 3 is adjustable between 80 and 160 times / min, and preferably 1: 4 in this embodiment; the control voltage range is 12-24V, ensuring that the device runs smoothly at high and low intensities;

[0117] The transmission ratio test range is to adjust the rolling frequency by setting different transmission ratios (1:2, 1:3, 1:4, 1:5, 1:6) to ensure that the magnetic bead 3 can run smoothly and continuously within the set frequency range; the transmission ratio of 1:4 can provide a smooth and continuous driving effect in different intensity modes of the device, avoiding frequent adjustments or fluctuations, and is suitable for actual use;

[0118] Control voltage test, the control voltage range is set at 12~24V, the test device operates smoothly under low voltage and high voltage, and the experiment found that;

[0119] 12V, under low voltage conditions, the electric drive motor can effectively drive the magnetic beads 3 to roll, which is suitable for low-frequency massage needs;

[0120] 24V, under high voltage, the device outputs a higher frequency of rolling, which is suitable for deep and high-intensity massage needs;

[0121] By adjusting the voltage, users can switch between different intensity modes, ensuring that the device can operate smoothly at both low and high intensities without causing unstable rolling or increased noise due to voltage changes;

[0122] In summary, the transmission ratio is 1:4, and the voltage range is controlled to be 12-24V, so that the rolling frequency of the magnetic beads 3 is stabilized between 80-160 times / min, ensuring that the device operates smoothly under different massage intensities;

[0123] The strength and rolling frequency of the massage component are adjusted by an embedded microcontroller; users can select different massage intensities through the control panel or mobile phone application, and the device achieves different rolling frequencies by adjusting the operating voltage and speed of the electric drive motor;

[0124] The moxibustion assembly comprises two laser probes 4, which are respectively mounted on the belt body 1 at the inner and outer knee joints. The laser probes 4 monitor temperature changes through a temperature sensor, and the temperature and emission intensity are controlled by a microprocessor;

[0125] Working principle of moxibustion component: laser probe 4 emits far-infrared light to simulate the warm stimulation effect of moxibustion in traditional Chinese medicine; laser heats the local tissue of knee joint to promote blood circulation and reduce inflammation; laser temperature can be adjusted within the range of 40-50℃ to ensure safety and comfort;

[0126] Moxibustion component adjustment, users can adjust the laser temperature through the control panel or mobile phone application according to personal needs, ensuring the treatment process is gentle and non-invasive;

[0127] The laser probe 4 adopts a fully enclosed design. The shell material of the laser probe 4 includes aluminum alloy, stainless steel or engineering plastic (such as polycarbonate) to ensure the strength and heat dissipation effect of the structure, effectively dissipate heat and prevent the laser probe 4 from overheating. In this embodiment, aluminum alloy is preferred; the diameter of the laser probe 4 is 1 to 3 cm and is installed at the inner and outer knee joints of the knee to ensure that the laser can accurately act on these acupuncture points commonly used in traditional Chinese medicine moxibustion treatment. In this embodiment, 1.5 cm is preferred; the front end of the laser probe 4 is covered with a layer of polydimethylsiloxane (PDMS), silicone rubber or transparent polyurethane material to provide a soft protective layer to avoid direct contact with the skin, so as to prevent the laser probe 4 from directly contacting the skin and causing burns. In this embodiment, PDMS is preferred;

[0128] The diameter of the laser probe 4 is set to 1-3 cm. After experimental optimization, it is preferably 1.5 cm in this embodiment. The specific experimental conditions are as follows:

[0129] Diameter test range, the experiment tests the laser probe 4 with diameters of 1cm, 1.5cm and 3cm to determine the optimal spot coverage area and thermal effect;

[0130] 1cm, with a small diameter and concentrated light spot, it is suitable for small-area, high-precision acupoint treatment, but the coverage is limited and the treatment time is long;

[0131] 1.5cm, providing a moderate spot size, which can effectively cover the knee acupuncture points, such as the inner and outer knee holes, taking into account both the treatment depth and coverage area, and is suitable for most patients;

[0132] 3cm, the spot is larger and the coverage area is increased, but the energy density is reduced and the thermal effect is relatively weakened, which is not suitable for deep treatment needs;

[0133] Thermal effect and comfort test: Test the temperature change and comfort of the laser probe 4 on the knee joint area at various diameters; the 1.5cm laser probe 4 provides the most moderate thermal effect, which can promote blood circulation without causing discomfort due to too large or too small spot;

[0134] In summary, the diameter range of 1 to 3 cm has been experimentally verified to be applicable to different treatment needs, and the laser probe 4 with a diameter of 1.5 cm achieves the best balance between coverage and thermal effect, so 1.5 cm is preferred in this embodiment;

[0135] The laser probe 4 emits far-infrared light with a wavelength of 700 to 900 nm, preferably 808 nm in this embodiment, and the temperature is controlled at 40 to 50° C.;

[0136] The laser probe 4 emits far infrared light with a wavelength of 700 to 900 nm, preferably 808 nm in this embodiment. The specific experimental conditions are as follows:

[0137] Wavelength test range: far infrared light with wavelengths of 700nm, 808nm and 900nm was tested to determine the optimal tissue penetration depth and thermal effect;

[0138] 700nm, a shorter wavelength, has limited penetration depth and is suitable for thermal therapy of superficial tissues, but has a weak effect on deep tissues;

[0139] 808nm, medium wavelength, concentrated energy, good penetration, can effectively act on the deep tissue of the knee joint, and is suitable for the thermal treatment effect of acupoints, so 808nm is preferred in this embodiment;

[0140] 900nm, a longer wavelength, penetrates deeper, but part of the energy is scattered and the thermal effect is weakened, resulting in a less ideal local heating effect than the 808nm wavelength;

[0141] Thermal effect and safety test, testing the temperature control range of the skin surface at different wavelengths; the 808nm wavelength has the best effect when the temperature is controlled at 40-50℃, which can achieve deep heating without causing skin discomfort or burns;

[0142] Comprehensive experimental results show that the wavelength range of 700-900nm is suitable for the thermal treatment of the knee joint, and the wavelength of 808nm achieves the best balance in terms of penetration depth and thermal effect, so 808nm is preferred in this embodiment;

[0143] The 808nm wavelength laser source was selected based on its biological effects that are widely used in the medical field; the 808nm far-infrared laser can penetrate the skin and soft tissue to a deeper level, with an action depth of 4 to 6cm; the 808nm wavelength can effectively heat the soft tissue around the knee joint, while promoting local blood circulation and accelerating the elimination of inflammation;

[0144] The output power of the laser probe 4 is set to 0.5-1W, and the output intensity is adjustable to simulate the thermal effect of traditional Chinese medicine moxibustion to the maximum extent;

[0145] The laser component has a built-in temperature sensor to monitor the temperature of the laser probe 4 in real time; when the surface temperature of the laser probe 4 exceeds 50°C, the device automatically reduces the laser output power or stops working to ensure safety during use; in addition, the laser component also has a timing function, and the recommended time for each treatment is 10 to 20 minutes. The device will automatically shut down through the timer when the time is reached, and 15 minutes is preferred in this embodiment;

[0146] The traction assembly comprises two air bags 5 and an air pump. The air bags 5 are embedded on both sides of the belt body 1. The air pump inflates or deflates the air bags 5 through a connecting pipe.

[0147] The working principle of the traction component is that the traction function is achieved by the expansion of the airbag 5; when the airbag 5 is inflated, it will generate an outward stretching force on both sides of the knee joint, gradually pulling the soft tissues and muscles around the knee joint, reducing the pressure on the joint and improving the flexibility of the joint; the traction intensity can be controlled by the inflation volume of the air pump to prevent damage caused by excessive traction;

[0148] The traction component can be adjusted through the control panel or mobile phone application to ensure that the traction force is in line with the patient's personal tolerance and avoid secondary injuries caused by excessive force.

[0149] The material of the airbag 5 includes highly elastic, medical silicone rubber, polyurethane or nitrile rubber, which has excellent durability and elasticity, and can withstand repeated inflation and deflation without deformation. In this embodiment, silicone rubber is preferred; the size of the airbag 5 is designed to be 10 cm wide and 20 cm long, which can evenly wrap both sides of the knee joint and generate an outward stretching force when inflated; the thickness of the silicone rubber is 0.1-1 mm, ensuring that the airbag 5 has sufficient elasticity and does not rupture due to excessive expansion. In this embodiment, it is preferably 0.5 mm;

[0150] Thickness test range: tests are conducted on silicone rubber materials with thicknesses of 0.1mm, 0.5mm and 1mm to evaluate the durability and tensile properties of the material during repeated inflation and deflation;

[0151] 0.1mm, thinner, better elasticity, but prone to rupture under high pressure, and insufficient durability;

[0152] 0.5mm, moderate thickness, can maintain sufficient elasticity and withstand high-frequency inflation and exhaust. Experimental results show that this thickness maintains good durability and safety in long-term use;

[0153] 1mm, thicker and more durable, but slightly less elastic, resulting in less than ideal stretching effect after inflation;

[0154] Based on the experimental results, the 0.5 mm thick high elastic medical silicone rubber achieves the best balance between elasticity and durability, so in this embodiment, 0.5 mm is preferred to ensure that the airbag 5 can generate appropriate tensile force when inflated, but will not rupture due to excessive expansion;

[0155] The mechanical calculation of the traction component is based on the structure of the knee joint and the tensile bearing capacity of the muscle tissue; the maximum inflation pressure of the airbag 5 is set to 0.1-0.5 bar, and the corresponding traction force is 10-30N to meet the treatment needs of different patients. In this embodiment, it is preferably 0.3 bar, which can provide a tensile force of 20N, which is sufficient to effectively traction the soft tissue around the knee joint;

[0156] The mechanical calculation of the traction component is based on the structure of the knee joint and the tensile bearing capacity of the muscle tissue; the maximum inflation pressure of the airbag 5 is set in the range of 0.1 to 0.5 bar to ensure that the appropriate traction force is generated within a safe range. The experimental conditions range is as follows:

[0157] The inflation pressure test range tested 0.1 bar, 0.3 bar and 0.5 bar pressure to determine the appropriate traction and comfort;

[0158] 0.1 bar, the traction force generated is 10N, which is suitable for mild stretching needs, but the traction effect on deep tissues is insufficient;

[0159] 0.3 bar, the traction force generated is 20 N. This pressure provides a moderate traction effect, can effectively stretch the soft tissue around the knee joint, and the patient feedback effect is the best. Therefore, this embodiment is preferably 0.3 bar;

[0160] 0.5bar, the traction force generated is 30N, the traction force is strong, but some patients report that the pressure is too high, which may cause discomfort, especially for sensitive joints;

[0161] The traction force test range tested different traction forces of 10N, 20N and 30N to verify the comfort and effectiveness under different forces.

[0162] 10N, slight stretch, suitable for basic health care needs, but limited effect on deep traction;

[0163] 20N, which provides moderate stretching force, can effectively act on the soft tissue of the knee joint, and has the best effect on joint loosening and pain relief, so 20N is preferred in this embodiment;

[0164] 30N, strong traction, but some patients reported poor comfort, suitable for a small number of users with higher demands;

[0165] According to the experimental results, the inflation pressure of the airbag 5 ranges from 0.1 to 0.5 bar, and the corresponding traction force ranges from 10 to 30 N. In this embodiment, an inflation pressure of 0.3 bar is selected to provide a traction force of 20 N, ensuring that the traction effect and comfort are optimally balanced.

[0166] The airbag 5 has a built-in pressure sensor, which monitors the pressure inside the airbag 5 in real time. The user can adjust the inflation pressure through the control panel or mobile phone application to ensure that the traction strength is suitable for the needs of different patients;

[0167] The traction component is equipped with a pressure regulating air release valve. When the pressure exceeds the safe range, the device will automatically release part of the gas to prevent joint damage caused by excessive traction. In addition, the traction time can also be set according to the patient's needs. It is recommended that each traction time is 10 to 20 minutes. The device can be automatically controlled by a timer. In this embodiment, 15 minutes is preferred;

[0168] The hot compress assembly comprises a plurality of heating elements 6, and the heating elements 6 are evenly distributed on the inner lining of the belt body 1; the heating elements 6 monitor temperature changes through temperature sensors, and the temperature is controlled by a microprocessor;

[0169] Working principle of the hot compress component: when the device starts the hot compress function, the heating element 6 generates heat; the hot compress component acts on the area around the knee joint through gentle heat, helping to relieve muscle stiffness, reduce inflammation and pain, and enhance blood circulation in the knee joint;

[0170] The hot compress component can be adjusted through the control panel or mobile phone application to adjust the hot compress temperature to meet the needs of different users; the hot compress component has a temperature protection function, which automatically stops heating when the safe temperature is exceeded to ensure user safety;

[0171] The heating element 6 includes a graphene heating film, a carbon fiber heating wire or a positive temperature coefficient (PTC) ceramic heating sheet to ensure efficient heating and uniform heat conduction. In this embodiment, the graphene heating film is preferably used. The graphene material has excellent thermal conductivity and rapid heating ability, and can generate heat evenly in a short time. The thickness of the heating film is 0.01-0.03 mm, which is laid on the key parts of the inner lining of the belt body 1 to ensure that the heat is evenly distributed around the knee joint. In this embodiment, it is preferably 0.02 mm. The power of the heating film is 5-15 W, and the dynamic control of the temperature is achieved by adjusting the current. In this embodiment, it is preferably 10 W.

[0172] The test range of heating film thickness is set at 0.01-0.03mm to test the heat conduction effect and comfort of different thicknesses;

[0173] 0.01mm, the heating film is thinner and has good thermal conductivity, but it has poor durability in long-term use and is easily damaged by external forces;

[0174] 0.02mm, moderate thickness, can conduct heat quickly and evenly, and has good durability and softness. It shows the best warm and comfortable effect in the experiment, so 0.02mm is preferred in this embodiment;

[0175] 0.03mm, slightly thicker, increased durability, but slightly slower heating speed and affects overall flexibility;

[0176] Power test range: The power range is set at 5~15W to test the heating effect and temperature control accuracy of different powers on the knee joint area;

[0177] 5W, suitable for mild heating needs, but the heat is relatively low, it takes a long time to reach the ideal temperature, and is not suitable for rapid heating;

[0178] 10W has the best heating speed and uniformity, and can make the area around the knee joint reach the desired temperature in a short time without causing overheating. Therefore, 10W is preferred in this embodiment;

[0179] 15W, the heating speed is faster, but it may cause local overheating during long-term heating, and some patients report slight discomfort;

[0180] In summary, the thickness of the heating element 6 is selected to be 0.02 mm, and the power is preferably 10 W, which can achieve uniform heating in a short time and ensure that the heat is stably distributed around the knee joint to achieve a comfortable and effective warm treatment effect;

[0181] The temperature of the heating element 6 is adjusted to 40-50°C;

[0182] The hot compress assembly is equipped with a temperature control circuit, which monitors the surface temperature of the heating element 6 in real time through an integrated temperature sensor (NTC thermistor); the temperature control circuit uses a PID (proportional-integral-differential) algorithm to adjust the current to ensure that the temperature is constant between 40 and 50°C; the temperature sensors are arranged on the surface of the heating element 6, and each sensor can detect temperature changes with an accuracy of 0.1°C. When the temperature exceeds the set range, the microcontroller will automatically adjust the current or cut off the power supply;

[0183] In order to ensure the safety of long-term use, the hot compress component is equipped with an automatic power-off function. When the continuous operation exceeds 20 to 40 minutes, the device will automatically shut down through the timer to prevent overheating. In this embodiment, 30 minutes is preferred. In addition, the maximum power consumption of the hot compress component is 10 to 30W. With the battery component of the device, it can provide at least 3 hours of continuous use time. In this embodiment, 20W is preferred.

[0184] The control component includes a central control unit, an embedded control panel and an LCD display screen. Users can adjust the working mode and intensity of massage, moxibustion, traction and hot compress through the control panel;

[0185] Control component function: The control component provides multiple operation modes. Users can adjust the working parameters of each component through simple operations, including massage frequency, moxibustion temperature, traction strength and hot compress temperature. In addition, the control component can also be connected to the mobile phone application via Bluetooth for remote control.

[0186] The control component has built-in multiple protection mechanisms, including over-temperature protection, traction force limitation, and automatic adjustment of massage force, to ensure that the device is safe and reliable during use.

[0187] The core central control unit of the control component uses the STM32F4 series microcontroller (MCU), which is responsible for processing user instructions and coordinating the operation of various components; the microcontroller has the characteristics of low power consumption and high performance, and can simultaneously control the operation status of the massage, moxibustion, traction and hot compress components; the control unit is connected to the mobile phone application through the Bluetooth module, allowing users to remotely control and adjust parameters;

[0188] The control component adopts a multi-task scheduling mechanism to manage the work of different functions through priority queues; for example, when the user starts the traction component, the device will automatically reduce the intensity of the massage to avoid applying excessive physical pressure at the same time; when the moxibustion and hot compress functions are running at the same time, the device will give priority to dynamically adjusting the power of the two according to the temperature control data to ensure that the temperature is maintained within a comfortable range; in addition, the control component is equipped with an emergency stop button, and the user can manually terminate the operation of all components under any circumstances to ensure safety;

[0189] Feedback and intelligent interaction. The device can be connected to a mobile phone application. Users can use the application to record treatment data and provide feedback on their experience. The application regularly pushes knee joint health assessment questionnaires to help users detect changes in their condition.

[0190] Feedback and intelligent interaction function. The mobile application will also provide personalized maintenance suggestions based on user feedback and recommend nearby medical institutions when the condition worsens;

[0191] The device uses a rechargeable lithium battery with a capacity of 4000-6000mAh, which can provide at least 3 hours of continuous use time for the device. In this embodiment, 5000mAh is preferred. The battery management system (BMS) integrates overcharge and over-discharge protection functions to ensure the safety and long life of the battery. It is charged through the USB-C interface and the charging time is 2 hours.

[0192] The energy consumption of each function in the device is allocated and managed through the central control unit. The device has a low-power consumption mode. When the user stops operating it, the device will automatically enter standby mode to reduce energy consumption. The working power of the massage component, moxibustion component, traction component and hot compress component are all dynamically adjusted to ensure that electricity is reasonably distributed in different modes.

[0193] The design of the airbag 5 is one of the core technologies for the device to achieve the traction function. The expansion and contraction of the airbag 5 generates a controllable traction force, which acts on the soft tissues and ligaments around the knee joint to help relieve the pressure on the knee joint, reduce pain and improve the range of motion of the joint. The following is a detailed description of the traction component, including the working principle, design elements and why the traction component can achieve the traction function.

[0194] The working principle of the traction component is that the traction component controls the expansion and contraction of the airbag 5 by inflating or exhausting the airbag 5 through an air pump; the airbag 5 is located on both sides of the belt body 1, close to the outside of the knee joint; by inflating, the airbag 5 will gradually expand, generate an outward expansion force, and then pull the muscles and ligaments around the knee joint to achieve joint traction; by exhausting, the pressure of the airbag 5 is reduced, and the traction force of the knee joint is gradually released;

[0195] The purpose of traction is to relieve the pressure in the knee joint by stretching the soft tissue around the knee joint, promote the flow of joint fluid and the relaxation of soft tissue, thereby relieving inflammation and pain and improving joint flexibility. Traction can reduce the pressure between bones in the joint, and is particularly suitable for joint pain and stiffness caused by arthritis, osteoarthritis, etc.

[0196] Design elements of the traction component, material selection of airbag 5, the material of airbag 5 is made of highly elastic medical silicone rubber material, which has excellent elasticity and durability, and can withstand repeated inflation and deflation operations without deformation or rupture; this material also has good biocompatibility, will not irritate the user's skin, and can withstand tensile force for a long time while maintaining stable shape and function;

[0197] The thickness of the silicone rubber is set to 0.5 mm, which can ensure sufficient strength of the airbag 5 while maintaining the softness and flexibility of the airbag 5, so that it can fit closely to the knee joint without discomfort; the size of the airbag 5 is designed to be 10 cm wide and 20 cm long, which can cover both sides of the knee joint and evenly distribute pressure, ensuring that the traction force on the knee joint is smooth and uniform.

[0198] The layout and installation position of the airbags 5 are designed to be installed in pairs on both sides of the belt body 1, just covering the ligament and muscle area outside the knee joint; such a layout can ensure that when the airbags 5 are inflated, the airbags 5 will apply uniform external force to both sides of the knee joint, stretching the soft tissue around the joint without generating local pressure points;

[0199] The airbag 5 is arranged symmetrically on both sides. When the airbag 5 is inflated, the traction forces on the left and right sides are balanced to avoid the knee joint from tilting or uneven force.

[0200] The position of the airbag 5 is adaptable. The airbag 5 can be adaptively adjusted according to the tightness of the belt body 1 and the shape of the user's knee, ensuring that accurate traction can be provided during use by different users.

[0201] Air pump and pressure control. The air pump is the core power device of the traction component, responsible for filling air into the airbag 5 to achieve expansion. The air pump is driven by a micro brushless motor, which has the characteristics of high efficiency and low noise, suitable for long-term work and will not interfere with the user. The maximum output pressure of the air pump is 0.3 bar, which can provide 20N of traction, which is enough to effectively stretch the soft tissue around the knee joint without causing discomfort or damage.

[0202] The pressure control adjusts the working state of the air pump by real-time monitoring the pressure of the airbag 5 (using a pressure sensor with an accuracy of ±0.05 bar) to ensure that the pressure in the airbag 5 is always kept within a safe range; the specific principle of pressure control is as follows;

[0203] During the inflation process, after the user sets the traction strength, the air pump starts to inflate the airbag 5, and the airbag 5 gradually expands; when the pressure sensor detects that the pressure of the airbag 5 reaches the set value (such as 0.2 bar, corresponding to a traction force of 15N), the air pump automatically stops working to maintain the pressure of the airbag 5 unchanged; the pressure sensor collects pressure data once a second and transmits the data to the control component to ensure the stability of the pressure;

[0204] During the exhaust process, when the user ends traction or the device detects that the pressure in the airbag 5 exceeds the safe value, the air pump will automatically stop inflating and gradually release the pressure in the airbag 5 through the deflation valve, so that the traction force gradually decreases until it is completely eliminated.

[0205] Why can traction be achieved through the airbag 5? The controllable external force generated by the expansion of the airbag 5 is achieved by inflation. When the airbag 5 is filled with air, the airbag 5 will generate an outward expansion force. This expansion force acts on both sides of the knee joint, causing the soft tissues, muscles and ligaments around the knee joint to be stretched. Since the pressure generated by the expansion of the airbag 5 is controllable, it can provide a traction force with good adaptability according to the needs of different users and the state of the knee joint.

[0206] Distribution of traction force: after the airbag 5 is inflated, the pressure is evenly applied to the left and right sides of the knee joint, thereby generating a gentle traction force on the joint; this traction force is not concentrated at one point, but is distributed around the joint through a larger contact area, thereby avoiding discomfort or injury caused by excessive local pressure points;

[0207] The traction force is precisely controlled. The inflation amount of the airbag 5 directly affects the traction force. The user can set the traction force through the control panel or the mobile phone application. The device will adjust the working state of the air pump through the pressure sensor feedback to ensure that the airbag maintains a stable traction effect after expanding to the set pressure. This controllable external force enables the traction component to safely and effectively achieve traction of the knee joint.

[0208] Traction reduces joint pressure. The main goal of knee traction is to reduce the pressure inside the joint, especially the friction between bones. Through the stretching force generated by the airbag 5, the knee joint space is moderately expanded, and the synovial fluid flows more smoothly, which helps lubricate the joint, reduce inflammation, and promote the repair of soft tissue. This process helps reduce pain and stiffness in the knee joint and improves joint flexibility.

[0209] Stretching ligaments and soft tissues. When the airbag 5 expands, the ligaments, muscles and soft tissues on both sides of the knee joint will be stretched. This gentle stretching helps to relieve muscle stiffness caused by long-term joint tension. In addition, during the stretching process, the joint soft tissues are relaxed, reducing the friction inside the knee joint.

[0210] To promote the flow of synovial fluid, the traction of the airbag 5 will cause the joint cavity of the knee joint to be stretched to a certain extent, so that the synovial fluid can flow more smoothly inside the joint; the flow of synovial fluid helps to moisturize the joint cartilage, reduce inflammation, and relieve arthritis symptoms.

[0211] Soft and adjustable traction. Different from traditional mechanical traction, the traction component can provide soft and progressive traction, and the pulling force can be precisely controlled; this soft traction has the following advantages:

[0212] Adjustability: the inflation pressure of the traction component can be adjusted in real time according to the specific situation of the user; for example, the airbag 5 can provide different traction forces from 5 to 20N to meet the needs of different patients; for patients with knee arthritis, gentle traction can reduce the burden on the joints, while for patients who need stronger traction, the traction component can provide greater traction effect;

[0213] Softness and comfort: the material of the airbag 5 itself has good softness and can adapt to the bending and movement of the knee; even when inflated, the pressure of the airbag 5 on the skin is relatively uniform and will not cause obvious discomfort or pressure; this makes traction therapy more comfortable and suitable for long-term use.

[0214] Safety and feedback mechanism of the traction component. In order to ensure the safety of the traction function, the traction component is equipped with multiple feedback and protection mechanisms. The pressure of the airbag 5 is monitored in real time through the pressure sensor, and the operating status of the air pump is automatically adjusted as needed;

[0215] Real-time feedback mechanism: the pressure sensor can monitor the pressure data inside the airbag 5 in real time and transmit the information to the control component; the control component will automatically adjust the working frequency and time of the air pump according to the traction force set by the user to ensure that the airbag pressure remains within a safe range;

[0216] Overpressure protection: if the pressure in the airbag 5 exceeds the set maximum safety value (e.g. 0.35 bar), the device will immediately stop inflating and start the deflation valve to quickly reduce the pressure to ensure that the traction force does not exceed the safety range and avoid damage to joints and soft tissues;

[0217] User adjustment and safety prompts: users can adjust the traction force at any time through the control panel or mobile phone application; when the device detects abnormal pressure or the user adjusts too quickly, the device will prompt the user to make adjustments through the LCD display or mobile phone application to ensure safe use.

[0218] Through detailed design and precisely controlled traction components, the device can provide gentle, adjustable traction for the knee joint, effectively relieve joint pain and improve joint flexibility; the application of the device in home care and knee rehabilitation can provide a more convenient, comfortable and safe experience than traditional traction equipment.

[0219] The security protection mechanism of the device is as follows.

[0220] The hot compress component temperature control circuit design, the hot compress component maintains a stable temperature through a closed-loop temperature control circuit; the core components include the heating element 6, the temperature sensor, the power control module and the central control unit; the temperature sensor (NTC thermistor, measuring range -40 ~ 125 ℃, accuracy ± 0.5 ℃) is arranged on the surface of the heating element 6 to monitor the temperature data of the heating element 6 in real time; the temperature sensor collects the temperature once per second and transmits the data to the central control unit; the central control unit adjusts the power output of the heating element 6 through pulse width modulation (PWM) to accurately control the temperature;

[0221] The working principle of the temperature control loop is that when the temperature sensor detects that the temperature is lower than the set value, the central control unit increases the power output of the heating element 6; when the temperature reaches or exceeds the set value, the central control unit immediately reduces or shuts down the power output to ensure that the temperature is maintained between 40 and 50°C; the temperature control loop design uses the PID (proportional-integral-differential) algorithm, which provides a smooth heating effect through continuous calculation of temperature changes and avoids rapid temperature fluctuations;

[0222] Over-temperature protection mechanism, the hot compress component has multiple temperature monitoring and protection mechanisms; once the temperature exceeds 50°C, the device will automatically trigger the following protection measures;

[0223] Power reduction: When the temperature exceeds the set value (50°C), the central control unit immediately reduces the power of the heating element by 50% through a pulse width modulation signal and continuously monitors the temperature change;

[0224] Automatic stop, if the temperature continues to rise and reaches 55°C, the device will automatically cut off the power supply to the heating element 6 to prevent any further temperature rise, and the user needs to manually restart the device;

[0225] Timing protection mechanism: To prevent the risk of overheating caused by long-term use, the hot compress component is equipped with an automatic shut-off function; the default heating time is set to 30 minutes each time. When the time is up, the device will automatically stop running, and the user can restart the hot compress function as needed;

[0226] Skin protection and heat transfer design, the surface material of the hot compress component adopts a soft silicone pad with good thermal conductivity and excellent thermal insulation effect; the thermal conductivity coefficient of silicone is low, which can ensure that the heat generated by the heating element 6 is evenly distributed to avoid local overheating and skin burns; silicone also has waterproof and antibacterial properties to ensure safety and comfort during long-term use.

[0227] The core safety mechanism of the traction component is the precise control of the internal pressure of the airbag 5. The inflation and deflation of the airbag 5 are controlled by a micro air pump and a pressure sensor system. The maximum output pressure of the air pump is set at 0.3 bar, which can provide a traction force of 20 N. The pressure sensor (accuracy ± 0.05 bar, measurement range 0 ~ 1 bar) monitors the pressure value inside the airbag 5 in real time to ensure that the airbag 5 works within a safe range.

[0228] Working principle of the pressure control loop: the pressure sensor feeds back the real-time pressure value of the airbag 5 to the central control unit every second; the user sets the traction force (range 5 to 20N) through the control panel or mobile phone application, and the device automatically adjusts the operation of the air pump according to the set value; when the pressure in the airbag 5 reaches the set value, the central control unit turns off the air pump through the relay to maintain the pressure of the airbag 5 stable; if the pressure drops, the device will start the air pump again to keep the set traction force unchanged;

[0229] Traction force monitoring mechanism: the traction component keeps real-time monitoring of the internal pressure of the airbag 5 during the entire operation process; when the pressure of the airbag approaches the set upper limit (20N or 0.3bar), the pressure sensor will trigger an alarm in advance to remind the user that the pressure is about to reach the upper limit, preventing the airbag 5 from being damaged due to over-inflation or causing excessive traction;

[0230] Control logic, normal mode, the pressure sensor continuously monitors the pressure of airbag 5 to ensure that the pressure remains within the set range; when the pressure value approaches the set upper limit (0.28bar), the control component will automatically reduce the operating frequency of the air pump to slowly inflate the airbag until the target pressure is reached;

[0231] Overpressure warning mode: When the pressure in the airbag exceeds the set value (0.3 bar), the pressure sensor immediately sends a signal to the central control unit, and the device stops inflating by turning off the air pump and automatically deflates to a safe range (0.25 bar). At this time, the control panel will issue an audible or visual warning to remind the user to check the device.

[0232] Automatic stop mechanism and emergency deflation mechanism. The traction component has an automatic stop mechanism and an emergency deflation mechanism. When the traction force exceeds the safety range or the device detects an abnormality (such as a sudden increase in pressure), the device will immediately trigger the following two protection measures;

[0233] Automatically stop the traction. The central control unit immediately stops the inflation of the airbag 5 by shutting down the air pump and activating the deflation valve, and releases the pressure in the airbag 5 to a safe level (0.2 bar). The operation is completed within a few seconds to prevent any potential injury during the traction process.

[0234] Emergency stop button: The device is equipped with a special emergency stop button. The user can force stop the traction operation at any time by pressing the button; at this time, the device will immediately stop all inflation operations and start the deflation mechanism to ensure that the traction force is quickly released to avoid possible joint damage;

[0235] The traction component is also equipped with an automatic timed shutdown function with a timing protection and safety valve design. The user can set the time range for each traction (5 to 30 minutes). After the time is up, the device will automatically stop traction and gradually release the pressure of the airbag 5. In addition, the traction component is equipped with a physical safety deflation valve. When the pressure of the airbag 5 exceeds 0.35 bar, the deflation valve will automatically open to release excess gas to ensure that the airbag 5 will not rupture due to overpressure.

[0236] Comprehensive safety protection logic, multiple sensor networks, the entire device uses a multiple sensor network, including temperature sensors, pressure sensors and photoelectric sensors (used to detect whether the device is worn correctly); the data of each sensor is transmitted to the central control unit in real time to ensure that the device can respond to any potential abnormal situation in a timely manner;

[0237] Dual monitoring of temperature and pressure, the linkage design of temperature sensor and pressure sensor ensures the safety of hot compress and traction functions; for example, when the user uses traction and hot compress functions at the same time, the device will automatically adjust the traction strength to adapt to the current temperature conditions to prevent the superposition of long-term high temperature and high pressure from causing discomfort to the knee joint;

[0238] Fault alarm and user prompt: in case of any abnormal situation (such as over-temperature or over-pressure), the device will sound an audible and visual alarm, and the control panel or mobile phone application will display detailed fault information, prompting the user to check or adjust;

[0239] Safety operation guide. To ensure that users can use the equipment safely, the device comes with a detailed user manual, which includes information such as the working principle of each function, safety tips, how to set the appropriate temperature and traction force, and how to operate in an emergency.

[0240] The focus will be on explaining the operation priority, mutual exclusion mechanism, function collaboration mode and sensor network monitoring and adjustment algorithm of each function of the device (massage, moxibustion, traction and hot compress). Such a design not only improves the intelligence of the device, but also effectively avoids conflicts between different functions in certain situations, thereby ensuring the safety and efficiency of the device during operation.

[0241] The core design of the control component consists of a central control unit and embedded algorithms. The central control unit uses the STM32F4 series microcontroller (MCU) as the core and is responsible for managing the coordinated work of the four components of massage, moxibustion, traction and hot compress. The central control unit is connected to the mobile phone application via Bluetooth, and users can set the parameters of each function through the application. The operation of each function is controlled by a multi-tasking scheduling mechanism and priority management to ensure a comfortable and safe user experience.

[0242] Function operation priority design: In order to ensure the safety of the device and the best operation effect of each function, the control component sets different operation priorities for each function; the following are the specific priority settings and reasons;

[0243] Highest priority, traction components;

[0244] The reason is that the traction component directly applies external force to the knee joint, which may have a greater impact on the joint, muscles and soft tissues, and has potential risks; therefore, when the traction component is running, the central control unit will limit the operation mode of other functions to a safe range;

[0245] Specific restrictions: When the user sets a higher traction force (such as close to the maximum traction force of 20N), the device will automatically reduce the intensity of massage and hot compress to prevent excessive muscle fatigue or overheating during traction; the massage component will be adjusted to a lower frequency mode (below 80 times / min), and the hot compress temperature will be reduced to below 40°C;

[0246] Next highest priority, massage component;

[0247] The reason is that the massage component exerts mechanical effects on the knee joint and surrounding tissues. Although the force is small, if it works simultaneously with the high-intensity traction function, it may cause discomfort or excessive pressure on the knee joint. Therefore, during high-intensity massage (such as massage frequency exceeding 120 times / min), the central control unit will limit the pressure of the traction component.

[0248] Specifically, when the massage component is operated in high-intensity mode, the pressure of the airbag 5 of the traction component is limited to less than 0.2 bar (equivalent to a traction force of less than 15N), to prevent excessive physical burden on the knee joint when high-frequency massage and high traction force are applied simultaneously;

[0249] The third priority is the hot compress component;

[0250] The reason is that the hot compress component mainly heats the knee joint area. Although the effect is mild, it may conflict with the high-intensity traction function or massage function at a high temperature (such as 50°C), increasing the risk of skin damage. Therefore, the temperature adjustment of the hot compress function needs to be adjusted in real time according to the operation of other functions.

[0251] Specific restrictions: when the temperature of the hot compress component is higher than 45°C, the massage component will be automatically limited to medium and low frequency mode (no more than 100 times / min), and the traction component will be limited to a force range below 15N to avoid long-term high temperature and high-intensity force acting on the knee joint;

[0252] Lowest priority, moxibustion component;

[0253] The reason is that the moxibustion component acts on the knee joint through 808nm wavelength laser, which is a non-contact thermal therapy function with a milder effect and controllable temperature. Therefore, the moxibustion component can operate in multiple functions at the same time, but when the device detects high temperature or high traction force, the moxibustion function will be turned off first to ensure overall safety.

[0254] Specific restrictions: when the traction pressure exceeds 20N or the hot compress temperature is higher than 50°C, the moxibustion component will automatically enter standby mode to avoid skin discomfort caused by multiple thermal effects.

[0255] Mutual Exclusion Mechanism: The control component has a built-in mutual exclusion mechanism to prevent conflicts between certain functions when they are running at the same time. The following is the key mutual exclusion mechanism design.

[0256] The exclusion mechanism of traction and hot compress: when the traction component is in high-intensity mode (pressure exceeds 0.3 bar, i.e. 20N), the temperature of the hot compress component will be automatically limited to below 45°C to prevent high temperature and high traction from acting on the knee joint at the same time and causing discomfort; when the hot compress temperature exceeds 50°C, the traction component will automatically switch to low-intensity mode to reduce direct physical effects on the knee joint;

[0257] Mutual exclusion between massage and traction. The massage function and the traction function have certain mutual exclusion. When both are started at the same time, the control component determines whether the sum of the massage force and the traction force exceeds the safety range through sensor feedback. If the massage force is close to the maximum value (such as the massage frequency exceeds 150 times / min), the device will automatically reduce the traction force to prevent the two forces from acting together to cause damage to the knee joint and surrounding tissues.

[0258] Synergy and limitations of hot compress and moxibustion. Hot compress and moxibustion functions can work together, but when the hot compress temperature exceeds 50°C or the moxibustion output power exceeds 1W, the device will automatically shut down the moxibustion function to prevent the risk of burns to the skin due to the superposition of multiple heat sources.

[0259] The collaborative working mechanism of embedded algorithms. The embedded algorithms in the control components are the core to realize the collaborative working of various functions. The algorithms are based on PID (proportional-integral-differential) control technology and multi-task scheduling mechanism, and can be dynamically adjusted according to real-time sensor data.

[0260] PID control principle: the working status of each component (such as massage, moxibustion, hot compress, traction) is fed back by sensor data, and the central control unit adjusts the working intensity of each component through the PID control algorithm; for example, the rolling frequency and strength of the massage component are dynamically adjusted according to the pressure status of the knee joint (fed back by the pressure sensor); the PID control algorithm can ensure the stability of the output force and heat, and make adaptive adjustments according to the target value of the device to avoid rapid fluctuations;

[0261] Multi-task scheduling mechanism. The central control unit manages the operation of massage, moxibustion, traction and hot compress functions simultaneously through a multi-task scheduling mechanism. The scheduling mechanism determines the order and time of execution according to the priority of each function. When two or more functions are running at the same time, the device will sort the functions according to the priority queue and give priority to the functions with a higher safety level. For example, when traction and massage are started at the same time, the feedback signal of the traction function will be processed first, and the operation frequency of the massage will be automatically adjusted according to the real-time status of traction.

[0262] Sensor monitoring and automatic adjustment mechanism: the control component monitors the status of the knee in real time through a series of sensors (including temperature sensors, pressure sensors, and acceleration sensors), and automatically adjusts the parameters of each function through embedded algorithms to ensure operation within a safe range;

[0263] The temperature sensor is installed on the surface of the hot compress and moxibustion components to monitor the temperature of the knee joint in real time. The data from the temperature sensor is collected once a second and transmitted to the central control unit. The device automatically adjusts the power of the heating element according to the temperature data to ensure that the temperature is maintained within the safe range set by the user (40-50°C).

[0264] The pressure sensor is installed in the airbag 5 of the traction component to monitor the traction force in real time. When the traction force is close to the maximum value set by the user, the central control unit will ensure that the traction force does not exceed the safe range by reducing the working frequency of the air pump or directly releasing the air. If the sensor detects that the traction force is abnormally increased (such as exceeding 0.35 bar), the device will immediately trigger the automatic stop mechanism, shut down the air pump and release the pressure in the airbag.

[0265] The acceleration sensor is installed on the belt 1 and is used to detect the user's movement status; when the user's activities are too intense (such as standing or walking), the acceleration sensor will trigger the device to enter protection mode, suspending all physical functions (such as massage and traction) to prevent treatment from continuing under inappropriate circumstances.

[0266] Intelligent feedback and automatic adjustment: The control component automatically adjusts the work of each component based on real-time sensor data through embedded algorithms to ensure that each function operates within a safe range. For example, when the device detects that the temperature or traction pressure of the knee exceeds the predetermined safety range, the device will automatically adjust and provide feedback to the user. The following is the specific automatic adjustment mechanism;

[0267] Automatic temperature adjustment mechanism: The temperature sensors equipped in the hot compress component and the moxibustion component detect the temperature changes on the skin surface in real time; when the temperature approaches or exceeds the set upper limit of 50°C, the device will automatically reduce the output power of the heating element 6 or the laser; for example, if the temperature reaches 49°C, the device will reduce the power by 20% to avoid further temperature rise; if the temperature continues to rise to above 50°C, the device will automatically turn off the relevant heating function and issue a prompt tone or notify the user to adjust the settings through the mobile phone application;

[0268] The traction automatic adjustment mechanism, the pressure sensor in the traction component continuously monitors the pressure in the airbag 5 to ensure that the traction force is kept within the range set by the user (for example, 10-20N); if it is detected that the pressure exceeds the safety threshold (for example, 20N), the device will immediately reduce the output power of the air pump and reduce the pressure through the air release valve to ensure that the traction force quickly returns to the safe range; if the pressure exceeds the emergency upper limit (0.35bar or 22.5N), the device will immediately stop the traction operation and release the pressure to ensure that the knee joint is not injured;

[0269] Mobile state detection and protection mechanism, the acceleration sensor can detect the user's activity state; if the device detects that the user suddenly stands up or moves during use, the central control unit will immediately suspend all mechanical and heating functions to ensure that the user is not accidentally injured by traction or massage operations while moving; for example, if the acceleration sensor detects that the acceleration exceeds the set stillness threshold (for example, the user stands up or walks quickly), the device will automatically trigger the protection mode and suspend the massage, moxibustion, traction and hot compress functions until the user returns to a still state.

[0270] User feedback and intelligent prompts: The control component integrates a user feedback mechanism, which can be monitored and adjusted in real time through the mobile phone application or control panel; users can check the working status of the current component at any time, including temperature, traction strength, massage frequency, etc.

[0271] Real-time feedback and adjustment suggestions. The application can provide real-time adjustment suggestions based on the sensor data. For example, when the device detects that the temperature is too high or the traction is too great, the application will suggest that the user reduce the intensity of the corresponding function or turn off certain functions. Users can also view the data records during the treatment process through the application to help adjust future treatment parameters.

[0272] Safety reminder and alarm mechanism: if the device detects that the temperature, traction or massage frequency exceeds the safe range, it will immediately send an alarm through the mobile phone application to remind the user to check the device status and make adjustments; at this time, the application will display the specific reason for the limit and provide actionable suggestions, such as "The temperature is too high, please lower the hot compress temperature" or "The traction force exceeds the limit and the device has been automatically adjusted."

[0273] Fault detection and safety shutdown mechanism, self-diagnosis and automatic shutdown. The device has a self-diagnosis function. It will automatically detect whether each functional module (such as temperature sensor, pressure sensor, air pump, etc.) is working properly each time it is started; if any fault is found (such as sensor failure or air bag 5 leakage), the device will automatically disable the relevant function and notify the user to check and maintain; all functions will automatically enter the safety mode when an abnormality occurs to ensure that there will be no harm to the user;

[0274] Emergency stop and recovery function: users can immediately interrupt the operation of all functions at any time through the emergency stop button or the emergency stop option in the application. The device will simultaneously release the pressure of the airbag 5, turn off the heating element 6 and laser output, and stop the rolling of the magnetic bead 3 to ensure that the device is in the safest state; after an emergency stop, the device can be manually restored to normal operation by the user and restart related functions according to the previous settings.

[0275] Design and capacity of battery components, battery type and capacity, the device is equipped with a lithium-ion battery with a capacity of 5000mAh and a voltage of 7.4V; lithium-ion batteries are ideal for portable devices due to their high energy density and long cycle life; the battery can power the massage, moxibustion, hot compress and traction components in the device at the same time, and ensure that the device can provide a long battery life under continuous operation;

[0276] Battery life: Through a reasonable power management system, the battery can support the device to run continuously for 4 hours under medium load conditions (such as massage frequency of 140 times / min, hot compress temperature of 45°C, traction force of 15N, and moxibustion laser power of 750mW); under light load conditions (such as low-frequency massage, mild traction and low-power laser), the battery life can reach more than 6 hours; the charging time is 2 hours, and fast charging is carried out through the USB-C interface.

[0277] Optimized design of energy management system. To extend battery life, the device has a built-in intelligent energy management system (EMS). By optimizing the power consumption of different functions, it ensures that the battery life is maximized without affecting the user experience. The specific optimization methods are as follows;

[0278] Dynamic power consumption adjustment: the control component will automatically adjust the working intensity of each function according to the user's operating habits and real-time needs. For example, when the user starts the massage, moxibustion, hot compress and traction functions at the same time, the device will analyze the current total power consumption demand and appropriately reduce the power output of non-core functions (such as moxibustion and hot compress) to ensure that the most critical functions (such as massage and traction) are running efficiently while the overall power consumption is reasonably controlled. Specifically, the device will reduce the scrolling frequency of the massage component or maintain the hot compress temperature at 40°C and other energy-saving operations to avoid excessive power consumption.

[0279] Task priority management, the intelligent energy management system will give priority to meeting the functions with the highest user demand; for example, when the user sets a higher traction force, the device will automatically reduce the power output of hot compress and moxibustion to ensure that the traction function remains in the best operating state; by adjusting the power output ratio of each function, the device can effectively reduce unnecessary power consumption and maintain the continuity of the user experience.

[0280] Low power mode and automatic standby function. To further improve the endurance and battery life, the device is designed with low power mode and automatic standby function, which can reduce energy consumption when not in use or in low intensity;

[0281] Low power mode: When the device detects that the user uses certain low-intensity functions for a long time (such as maintaining a low massage frequency or a low-temperature hot compress for a long time), the device will automatically enter low power mode. In low power mode, the device will reduce unnecessary energy consumption, such as reducing the brightness of the display and reducing the power supply of infrequently used functions, while ensuring the normal operation of the core functions currently operated by the user. For example, the massage frequency can be maintained at 80 times / min in low power mode, and the traction component will be maintained at a lower pressure range (10N).

[0282] Automatic standby function: if the device does not detect any operation within a period of time (such as 10 minutes), it will automatically enter standby mode; in standby mode, all functions will stop running, only basic monitoring functions remain active, and operate with extremely low power consumption (less than 0.5W); when the user presses the control button again or activates the device through the mobile phone application, the device will quickly return to the previous operating state, reducing waiting time and power loss.

[0283] Charging management and battery protection: To ensure the safety and long life of the battery, the device is equipped with an intelligent charging management system that can efficiently manage the charging and discharging of the battery, ensuring the safety and stability of the battery during long-term use;

[0284] Charging protection mechanism, the device is equipped with multiple protection functions such as overcharge, over-discharge, short circuit protection and temperature monitoring; the charging management system monitors the battery voltage, temperature and charging rate in real time; when the battery charge reaches 100%, the device will automatically switch to trickle charging mode to prevent overcharging and damage to the battery; if the battery temperature exceeds the safe range during charging (such as exceeding 45°C), the device will suspend charging until the temperature returns to the safe range;

[0285] Power display and reminder: users can check the current power in real time through the LCD display or mobile phone application; when the power is lower than 20%, the device will automatically remind users to charge and enter low power mode to extend the use time of the remaining power.

[0286] Durability design. Considering the portability and usage scenarios of the device, durability is an important consideration in the design. In order to ensure the stability and reliability of the device in long-term use, the following durability features are specially designed;

[0287] The device is designed to be resistant to compression and drop. The housing is made of high-strength acrylonitrile-butadiene-styrene (ABS) plastic or polycarbonate (PC) material, which has excellent impact resistance and abrasion resistance. Through a series of drop tests, the device can withstand the impact of falling from a height of 1.5m to a hard ground without affecting normal functions. In this embodiment, ABS plastic is preferred;

[0288] The battery is designed to be resistant to pressure and explosion. The battery assembly is encapsulated in an aluminum shell, which has good pressure resistance and can withstand external physical impacts. The battery assembly also integrates an explosion-proof protection circuit, which can quickly cut off the power supply in extreme cases (such as over-temperature or over-voltage) to prevent the battery from swelling or exploding.

[0289] Performance stability after long-term use: The design life of lithium batteries is 500 charge and discharge cycles, within which the battery capacity can still be maintained at more than 80% of the initial capacity; after more than 500 charge and discharge cycles, the battery capacity may decrease, but the intelligent energy management system will still ensure the continuous and stable operation of the device by optimizing power distribution;

[0290] Waterproof and dustproof design: the device surface has IPX4 waterproof design, which can resist water splash and sweat erosion in daily use, and is suitable for users to use in sports or rehabilitation training; the internal key electronic components are sealed and have good dustproof performance to ensure long-term reliability.

[0291] Performance after long-term use. During long-term use, the device undergoes durability testing to ensure that it can maintain excellent performance in a variety of complex environments.

[0292] The durability of heating element 6, the graphene heating film has been tested for 5000h continuous use and still maintains a high thermal effect and stability; heating element 6 can maintain consistent heating efficiency under multiple temperature adjustments, ensuring that there will be no problems of uneven temperature or decreased heating speed after long-term use;

[0293] Durability of the airbag 5. The material of the airbag 5 is high-elastic medical silicone rubber, which can maintain good elasticity and compression resistance after more than 2,000 inflation and deflation cycles, ensuring that the traction function remains stable in long-term use;

[0294] The massage component is designed for life. The electric drive motor of the massage component adopts a brushless DC motor with a design life of 2000 hours of continuous operation, ensuring that the massage effect will not be affected by friction loss during long-term use; the material of the spherical magnetic beads 3 is medical stainless steel, and after a 2000-hour rolling test, the surface remains smooth and there is no wear.

[0295] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A knee joint health care device based on traditional Chinese medicine external treatment, characterized in that: The device comprises a belt body (1), a massage component, a moxibustion component, a traction component and a hot compress component; The massage assembly comprises magnetic beads (3), which are arranged around the patella on the inner side of the belt body (1); The moxibustion assembly comprises a laser probe (4), which is mounted on the belt body (1) at locations corresponding to the inner and outer knee joints; The traction assembly comprises an air bag (5) which is embedded on both sides of the belt body (1); The hot compress assembly comprises a heating element (6), which is distributed on the inner lining part of the belt body (1).

2. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The material of the belt body (1) includes polyurethane, chloroprene rubber or nylon; Connecting pieces (2) are provided on both sides of the belt body (1), and the connecting pieces (2) include Velcro, snaps or elastic bands.

3. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The magnetic beads (3) are driven to roll by an electric drive motor, wherein the electric drive motor comprises a stepping motor or a brushless DC motor; The material of the magnetic bead (3) includes medical grade stainless steel 304L or 316L, the shape of the magnetic bead (3) is spherical, and the diameter of the magnetic bead (3) is 8 to 10 mm; The rolling frequency of the magnetic beads (3) is 80 to 160 times / min, and the force is 1 to 10 kilograms.

4. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The shell material of the laser probe (4) includes aluminum alloy, stainless steel or engineering plastics, the diameter of the laser probe (4) is 1 to 3 cm, and the front end of the laser probe (4) is covered with polydimethylsiloxane, silicone rubber or transparent polyurethane material; The laser probe (4) emits far-infrared light with a wavelength of 700 to 900 nm, a temperature of 40 to 50° C., and an output power of 0.5 to 1 W.

5. The knee joint health care device based on TCM external treatment according to claim 1, characterized in that: A temperature sensor is arranged on the surface of the laser probe (4).

6. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The air bag (5) is inflated or exhausted by an air pump and is equipped with a pressure regulating deflation valve; The material of the airbag (5) includes silicone rubber, polyurethane or nitrile rubber, and the wall thickness of the airbag (5) is 0.1 to 1 mm; The maximum inflation pressure of the airbag (5) is 0.1-0.5 bar, and the pulling force is 10-30N.

7. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: A pressure sensor is installed in the airbag (5).

8. The knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The heating element (6) comprises a graphene heating film, a carbon fiber heating wire or a positive temperature coefficient ceramic heating sheet, the thickness of the heating element (6) is 0.01 to 0.03 mm, and the power is 5 to 15 W; The temperature of the heating element (6) is 40-50°C.

9. The knee joint health care device based on TCM external treatment according to claim 1, characterized in that: A temperature sensor is arranged on the surface of the heating element (6).

10. A knee joint health care device based on TCM external treatment according to claim 1, characterized in that: The device also includes a control component, which includes a central control unit, a control panel and a display screen, and the control component is connected to the massage component, the moxibustion component, the traction component and the hot compress component; The control component sets different operation priorities for each function, giving priority to functions with higher safety levels, and monitors the status of the knee in real time through sensors; Highest priority, traction components; When the user sets the traction force close to the maximum traction force, the device will reduce the intensity of massage and hot compress, the massage component will be adjusted to a low-frequency mode below the set range, and the hot compress temperature will be reduced below the set range; Next highest priority, massage component; When the massage component is operated in a high-intensity mode above the midpoint of the setting range, the airbag pressure of the traction component is limited to 2 / 3 of the maximum inflation pressure; The third priority is the hot compress component; When the temperature of the hot compress component is higher than the middle value of the set range, the massage component is limited to the medium and low frequency mode within 1 / 4 of the set range, and the traction component is limited to the force range of 2 / 3 of the maximum inflation pressure; Lowest priority, moxibustion component; When the traction pressure exceeds the set range or the hot compress temperature is higher than the set range, the moxibustion component will enter the standby state; Control components have built-in mutual exclusion mechanisms; The exclusion mechanism of traction and hot compress: when the traction component is in a high-intensity mode exceeding the set range, the temperature of the hot compress component will be automatically limited to below the median value of the set range; when the hot compress temperature exceeds the set range, the traction component will automatically switch to a low-intensity mode of 2 / 3 of the maximum inflation pressure to reduce direct physical effects on the knee joint; Massage and traction are mutually exclusive. When both are activated at the same time, the control component determines whether the sum of the massage force and the traction force exceeds the safety range through sensor feedback; if the massage force is close to the maximum value, the device will reduce the traction force; The coordination and limitation of hot compress and moxibustion: when the hot compress temperature exceeds the set range or the moxibustion output power exceeds the set range, the device will shut down the moxibustion function first; The control component adjusts the operation of the component based on the sensor data to ensure operation within a safe range; Temperature adjustment mechanism: the temperature sensors equipped in the hot compress component and the moxibustion component detect the temperature changes on the skin surface in real time; when the temperature approaches or exceeds the set upper limit, the device reduces the output power of the heating element (6) or the laser; if the temperature continues to rise above the set upper limit, the device turns off the relevant heating function; A traction adjustment mechanism, in which a pressure sensor in the traction assembly continuously monitors the pressure in the airbag (5) to ensure that the traction force remains within the range set by the user; if it is detected that the pressure exceeds the set upper limit, the device reduces the output power of the air pump and reduces the pressure through the air release valve; If the pressure exceeds the emergency upper limit, the device stops the traction operation and releases the pressure; Mobile state detection and protection mechanism, the acceleration sensor detects the user's activity state; if the device detects that the user suddenly stands up or moves during use, the central control unit suspends all mechanical and heating functions; if the acceleration sensor detects that the acceleration exceeds the set stillness threshold, the device triggers the protection mode and suspends the massage, moxibustion, traction and hot compress functions until the user returns to a still state.

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