A sleep aid device for alleviating arthritic pain

Abstract

The present application relates to the technical field of sleep promotion, in particular to a sleep auxiliary device for relieving arthralgia, comprising a binding part worn on the joint position of a patient, the surface of the binding part is provided with a plurality of multi-modal stimulation mechanisms for mechanically stimulating the joint acupoints; the auxiliary device further comprises a power source, a gyroscope, a surface electromyography sensor and a heart rate sensor; the power source provides stimulation power for the plurality of multi-modal stimulation mechanisms; the multi-modal stimulation mechanism comprises a shell with an open bottom, a pressing device arranged in the shell and a bionic massage device; the pressing device is used for pressing the joint acupoints; the bionic massage device is in transmission connection with the pressing device and is used for driving the pressing surface of the pressing device to swing. The device can automatically switch between the two modes of soft pressing and active pressing and rubbing according to the sleep and wake state information of the patient, relieve arthralgia, significantly reduce the interference to the sleep process and effectively improve the sleep continuity and quality of the patient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sleep promotion, in particular to a sleep auxiliary device for relieving arthralgia pain. BACKGROUND

[0002] As a common chronic degenerative disease, one of the core symptoms of arthritis is persistent joint pain and stiffness. The pain degree often reaches moderate to severe (VAS score ≥ 7 points) in the middle and late stages, which is characterized by unbearable dull pain, sharp pain, and even burning pain. This pain is not static and often worsens at night or when the body position changes, severely disrupting the patient's sleep structure. Studies have shown that more than 80% of arthritis patients suffer from sleep interruption. Pain leads to difficulty falling asleep, frequent awakenings at night, and a significant decrease in deep sleep (restorative sleep). The consequence is a vicious cycle of "pain-sleep deprivation": night pain wakes up the patient, leading to decreased sleep quality; and lack of sleep reduces the pain threshold, amplifying daytime pain perception, further exacerbating arthritis symptoms and dysfunction, and severely reducing the patient's quality of life and physical and mental health.

[0003] Currently, arthritis patients often use hot compress, take painkillers, or use massage devices with simple vibration functions to relieve pain. These methods can provide some temporary analgesic effect, but their passive and single mode of action cannot automatically massage the corresponding acupoints intelligently after the patient falls asleep. Therefore, the existing methods cannot directly and effectively improve the patient's sleep quality and continuity. There is an urgent need for a device that can automatically respond to arthritis pain during sleep and provide timely and soothing massage to the acupoints, thereby effectively improving the overall sleep experience of the patient.

[0004] After searching, it was found that there are many automatic massage devices for arthritis, and the main improvement direction is to improve the physiotherapy effect. For example, Chinese patent (CN214762171U) discloses a fumigation and massage instrument that helps relieve knee osteoarthritis pain. The device combines traditional Chinese medicine fumigation with knee massage, promotes local blood circulation during massage, and enhances drug absorption, thereby improving the physiotherapy effect of fumigation treatment. Although this device can improve the soothing effect, its structure and massage method are not suitable for patients in a sleep state. If used at night, it cannot adapt to the sleep rhythm and may interfere with sleep quality, so it is only suitable for daytime use and cannot promote sleep in patients. Currently, there is a lack of devices that can automatically adjust the massage mode according to the sleep state of arthritis patients. Therefore, the applicant invented a sleep auxiliary device that can intelligently adjust the massage mode according to the actual sleep state of patients during nighttime sleep, aiming to meet the dual needs of pain relief and sleep protection. SUMMARY

[0005] The application aims to provide a sleep auxiliary device for relieving arthralgia, which can automatically switch between soft pressing and active pressing and rubbing modes according to the sleep and wake state information of the patient, significantly reduce the interference to the sleep process, and effectively improve the sleep continuity and quality of the patient.

[0006] The application is implemented as a sleep auxiliary device for relieving arthralgia, which comprises a binding member worn on the joint position of the patient, and a plurality of multi-modal stimulation mechanisms for mechanically stimulating the joint acupoints are mounted on the surface of the binding member; the auxiliary device further comprises a power source, a gyroscope, a surface electromyography sensor, and a heart rate sensor; the power source provides stimulation power for the plurality of multi-modal stimulation mechanisms.

[0007] The multi-modal stimulation mechanism comprises an open-bottomed shell, a pressing device arranged in the shell, and a bionic massage device; the pressing device is used for pressing the joint acupoints; the bionic massage device is in transmission connection with the pressing device and is used for driving the pressing surface of the pressing device to swing to simulate the pressing and rubbing action to press and rub the joint acupoints.

[0008] Further, the pressing device comprises a lifting plate, a lifting unit, a fixed rod, and a stimulation head; the top of the lifting plate is connected with the driving end of the lifting unit; the top end of the fixed rod is fixedly connected with the bottom surface of the lifting plate, and the bottom end of the fixed rod is rotationally connected with the stimulation head; the power source provides power for the lifting unit.

[0009] The bionic massage device comprises a driving unit, a rotating plate, and a squeezing block; the rotating plate is rotationally sleeved on the fixed rod, and the driving unit is used for driving the rotating plate to rotate; the squeezing block is fixedly mounted on the bottom surface of the rotating plate.

[0010] Further, the power source is a plurality of step motors one respectively arranged in the shells of the different multi-modal stimulation mechanisms; the lifting unit comprises a lead screw and a sleeve; the step motor one is embedded on the top surface of the shell, the output end of the step motor one is fixedly connected with the top end of the lead screw, the sleeve is sleeved on the lead screw, and the bottom end of the sleeve is fixedly connected with the top surface of the lifting plate.

[0011] The stimulation head is a solid pressing and rubbing block.

[0012] Further, the lifting unit comprises an airflow reversing structure and a reset structure; the airflow reversing structure is used for providing pressing power for the stimulation head, and the reset structure controls the reset of the stimulation head; the airflow reversing structure and the reset structure are used in cooperation to control the pressing operation of the stimulation head on the acupoint; the air inlet end of the airflow reversing structure is connected with the power output end of the power source.

[0013] Further, the air flow reversing structure comprises an air inlet pipe, a three-way valve, a connecting pipe and an air outlet pipe; one end of the connecting pipe is connected with a common port of the three-way valve, and the other end is used for pressurizing the stimulating head to control the stimulating head to press; one end of the air inlet pipe is connected with one reversing port of the three-way valve, and the other end is connected with a power output end of a power source; one end of the air outlet pipe is connected with the other reversing port of the three-way valve, and the other end of the air outlet pipe is used for driving the multi-modal stimulating mechanism to rub and press.

[0014] Further, the stimulating head is an air bag, one end of the connecting pipe away from the three-way valve is communicated with the air bag, the reset structure comprises a pressure relief valve and a gas discharge pipe, the gas discharge pipe is communicated with the air bag, and the pressure relief valve is installed on the gas discharge pipe; one end of the air outlet pipe away from the three-way valve is connected with the bionic massage device.

[0015] Further, the lifting plate is sealingly and slidably connected with the inner side wall of the shell, so that a sealing cavity is formed on the top surface of the lifting plate; one end of the connecting pipe away from the three-way valve is communicated with the sealing cavity; one end of the air outlet pipe away from the three-way valve is communicated with the outside; and the reset structure is a spring, two ends of the spring are fixedly connected with the top surface of the shell and the top surface of the lifting plate respectively.

[0016] Further, the driving unit comprises a stepping motor two and two transmission gears meshing with each other; a power output end of the stepping motor two is fixedly connected with the shaft center of one transmission gear, and the other transmission gear is fixedly sleeved on the central shaft of the rotating plate.

[0017] Further, the driving unit comprises a cylindrical sealing shell, a rotating shaft, a plurality of blades, a pressurizing pipe and an exhaust pipe; the sealing shell is fixedly installed in the shell, the rotating shaft is fixedly sleeved on the central shaft of the rotating plate, the blades are distributed along the arc length of the side wall of the rotating shaft and separate the inside of the sealing shell into a plurality of sealed chambers, one end of the pressurizing pipe and the exhaust pipe are both communicated with the inside of the sealing shell, and the other end of the exhaust pipe is located outside the shell.

[0018] Further, one end of the pressurizing pipe away from the sealing shell is communicated with the sealing cavity on the top of the lifting plate, and an elastic one-way valve is arranged in the pressurizing pipe.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The device can automatically switch between soft pressing and bionic rubbing modes by intelligently sensing the sleep and pain state of the user, can provide non-disturbing acupoint relaxation during deep sleep, and can timely perform targeted pressing and rubbing with force and frequency closer to manual finger pressing after the person wakes up due to pain, thereby effectively relieving joint pain, reducing the frequency of night wake-up, significantly improving sleep continuity and rest quality; in addition, the device can be flexibly applied to multiple types of joints such as knees, wrists and elbows and corresponding acupoints through modular and adaptable structural design, has strong universality and practicality, one set of core technical solution can cover multiple specific product forms, is conducive to protection and implementation;

[0021] 2、The device drives the lead screw mechanism through the stepper motor 1 to control the precise up-down movement of the pressing and rubbing block, can implement gentle and stable acupoint pressing when the patient is in deep sleep, and realize disturbance-free and comfortable; meanwhile, the rotating plate and the extrusion block make circular motion through the stepper motor 2, simulate the pressing and rubbing action of manual finger pressing when abutting against the pressing and rubbing block, and significantly improve the pain relief effect; both motors are built-in in the shell, the overall structure is compact, no external power is needed, the operation is stable and quiet, the use is convenient, and the applicability and user experience of the device are significantly enhanced;

[0022] 3、The lifting unit of the device is composed of an airflow reversing structure and a reset structure, is driven by an external air source, and controls the inflation and exhaust of the sealed cavity at the top of the lifting plate through the reversing function of the three-way valve, realizes the expansion and contraction of the lifting plate, and thus completes the gentle pressing of the acupoint; in addition, the three-way valve can keep the sealed cavity in a closed state at all times and maintain a stable high pressure inside, thereby providing a uniform and reliable support basis for the pressing and rubbing operation; when the extrusion block is driven to rotate by the stepper motor 2, the pressing and rubbing block can simulate the precise pressing and rubbing of manual operation, this structure forms a flexible buffer based on air pressure, compared with the pure motor driving mode, the risk of mechanical overload or excessive pressing is effectively avoided, and the safety of treatment and the comfort of acupoint stimulation are significantly improved;

[0023] 4、The lifting unit in the device integrates the airflow reversing structure and the reset structure, and the driving unit in the bionic massage unit includes a cylindrical sealed shell, a rotating shaft, a plurality of blades, a pressurizing pipe and an exhaust pipe; the pressurizing pipe is communicated with the sealed cavity above the lifting plate, and an elastic one-way valve is arranged at the communication position; this design only needs to connect an air pressure power source externally, and can realize the functions of gentle pressing and bionic rubbing; the air pressure source is arranged externally (such as being placed under the bed), which not only significantly reduces the running noise of the wearable part, but also reduces the complexity and manufacturing cost of the device, and improves the use comfort and economy;

[0024] 5、In the device, the stimulation head is arranged as an air bag, the reset structure is a deflated air pipe and a pressure relief valve, one reversing end of the three-way valve in the airflow reversing structure is communicated with the air bag, and the air bag is inflated and deflated under the joint operation of the three-way valve and the pressure relief valve, so as to realize the effect of gentle pressing; this structure does not need to separately arrange a sealed space, simplifies the internal structure of the shell, and reduces the manufacturing process requirement; meanwhile, the air inlet end of the driving unit is communicated with the other reversing end of the three-way valve, so that a single external power source can realize the effects of gentle pressing and bionic rubbing on the joint acupoint of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structure schematic view of a sleep auxiliary device for relieving arthritic pain provided by the embodiment 1 of the present application;

[0026] Figure 2is a structural schematic diagram of a sleep aid device for relieving arthralgia pain in a use state according to Embodiment 1 of the present application;

[0027] Figure 3 is a structural schematic diagram of a multi-modal stimulation mechanism in Embodiment 1 of the present application;

[0028] Figure 4 is a schematic diagram of an electrical element connection structure of a sleep aid device for relieving arthralgia pain in Embodiment 1 of the present application;

[0029] Figure 5 is a use state diagram of a sleep aid device for relieving arthralgia pain applied to a knee joint of a human body according to Embodiment 1 of the present application;

[0030] Figure 6 is a use state diagram of a sleep aid device for relieving arthralgia pain applied to an elbow joint of a human body according to Embodiment 1 of the present application;

[0031] Figure 7 is a use state diagram of a sleep aid device for relieving arthralgia pain applied to a wrist joint of a human body according to Embodiment 1 of the present application;

[0032] Figure 8 is a structural schematic diagram of a sleep aid device for relieving arthralgia pain according to Embodiment 2 of the present application;

[0033] Figure 9 is a structural schematic diagram of a multi-modal stimulation mechanism according to Embodiment 2 of the present application;

[0034] Figure 10 is a structural schematic diagram of a three-way valve according to Embodiment 2 of the present application;

[0035] Figure 11 is a schematic diagram of an electrical element connection structure of a sleep aid device for relieving arthralgia pain according to Embodiment 2 of the present application;

[0036] Figure 12 is a structural schematic diagram of a sleep aid device for relieving arthralgia pain according to Embodiment 3 of the present application;

[0037] Figure 13 is a structural schematic diagram of a multi-modal stimulation mechanism according to Embodiment 3 of the present application;

[0038] Figure 14 is Figure 13 is an enlarged view of A in FIG. 8;

[0039] Figure 15 is a horizontal sectional view of a driving device according to Embodiment 3 of the present application;

[0040] Figure 16is an electrical element connection structure diagram of a sleep aid device for relieving arthralgia pain in embodiment 3 of the present application.

[0041] Figure 17 is a structure diagram of a sleep aid device for relieving arthralgia pain provided in embodiment 4 of the present application.

[0042] Figure 18 is a structure diagram of a multi-modal stimulation mechanism in embodiment 4 of the present application.

[0043] Figure 19 is an electrical element connection structure diagram of a sleep aid device for relieving arthralgia pain in embodiment 4 of the present application.

[0044] The reference signs involved in the above-mentioned drawings:

[0045] 1, binding part; 2, shell; 3, pressing and rubbing block; 4, extrusion block; 5, screw rod; 6, stepper motor one; 7, sleeve; 8, fixed rod; 9, stepper motor two; 10, rotating plate; 11, transmission gear; 12, lifting plate; 13, reset spring one; 14, air outlet pipe; 15, connecting pipe; 16, servo motor; 17, air inlet pipe; 18, pressure sensor; 19, spherical shell; 20, L-shaped passage; 21, ball; 22, sealing plate; 23, limiting plate; 24, reset spring two; 25, support frame; 26, blade; 27, rotating shaft; 28, air bag; 29, pressure relief pipe; 30, pressure relief valve. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0047] The implementation of the present application is described in detail below in combination with specific embodiments.

[0048] Referring to Figures 1-19 , a preferred embodiment provided by the present application is shown.

[0049] Embodiment 1: A sleep aid device for relieving arthralgia pain, comprising a binding part worn on the joint position of a patient, and a plurality of multi-modal stimulation mechanisms for stimulating the joint acupoint mechanics are installed on the surface of the binding part; wherein the binding part can be designed according to the physiological structure of different joints, for example: the knee joint position ( Figure 5 ) and the elbow joint position ( Figure 6 ), the binding part can be fastened by using a structure of a band combined with a magic tape. At the wrist joint ( Figure 7) can use the form of short finger gloves restraint. And the number and distribution of multi-modal stimulation mechanism are set according to the target acupoints of different joints. For example, the knee joint ( Figure 5 ) corresponds to four stimulation points of Xuehai, Neixiexian and Heding; the elbow joint ( Figure 6 ) corresponds to three stimulation points of Quchi, Shousanli and Shaohai; the wrist joint ( Figure 7 ) corresponds to three stimulation points of Yangchi, Daling and Neiguan. It should be noted that the structure of the restraint member that can fix the device on the joint part (such as the shoulder joint can also be designed as a vest), and the arrangement scheme of the multi-modal stimulation mechanism that can achieve soft pressing and imitating rubbing of the corresponding joint acupoint, all belong to the protection scope of the claims of the present application.

[0050] As shown in Figure 3 , the multi-modal stimulation mechanism includes an open-bottom shell 2, a pressing device and an imitating massage device arranged in the shell 2; wherein the shell 2 is fixedly installed on the restraint member, and the bottom surface is flush with the surface of the restraint member contacting the patient's skin.

[0051] In the embodiment, the pressing device mainly consists of a lifting plate 12, a lifting unit, a fixed rod 8 and a stimulation head. The lifting plate 12 is horizontally arranged, the top end of the fixed rod 8 is fixedly connected with the lifting plate 12, and the bottom end is connected with the stimulation head through a universal joint. The stimulation head of the embodiment adopts a solid rubbing block 3, and the rubbing surface is a circular arc surface.

[0052] The lifting unit in the embodiment adopts a motor driving mode, mainly including a step motor 6, a lead screw 5 and a sleeve 7. The step motor 6 is installed at the top inside of the shell 2, and the output shaft is fixedly connected with the top end of the lead screw 5; the sleeve 7 is sleeved on the lead screw 5 through thread cooperation, and is fixedly connected with the top of the lifting plate 12. When the step motor 6 rotates, it drives the lead screw 5 to rotate, so that the sleeve 7 moves up and down along the axial direction of the lead screw 5, thereby driving the lifting plate 12, the fixed rod 8 and the rubbing block 3 to lift as a whole, and realizing controllable pressing of the acupoint. In order to prevent excessive pressing, a pressure sensor 18 (not shown in the figure) is integrated on the pressing surface of the rubbing block 3, which monitors the pressing force in real time; when the pressure reaches the set threshold value, the step motor 6 immediately reverses to make the rubbing block 3 retreat, and through such periodic reciprocating motion, safe and soft pressing operation of the acupoint is realized.

[0053] The bionic massage device in the embodiment mainly consists of a driving unit, a rotating plate 10 and a pressing block 4. The rotating plate 10 is provided with a hollow sleeve 7 at the shaft center, rotatably sleeved on a fixed rod 8 and connected with the bottom surface of a lifting plate 12 through a bearing. The pressing block 4 is fixedly installed on the bottom surface of the rotating plate 10, and the bottom surface (i.e. the pressing surface) is designed as a circular arc shape to reduce abrasion and keep contact with the top surface of the rubbing block 3. When the driving unit drives the rotating plate 10 to rotate, the pressing block 4 performs circular motion around the shaft center, and pushes the rubbing block 3 to produce multidirectional swing through the contact and the universal joint, thereby simulating the manual finger pressing action to implement bionic rubbing on the joint acupoints.

[0054] The driving unit of the embodiment also adopts an electric drive form, mainly consisting of a stepping motor 2 and a pair of mutually meshing transmission gears 11. The stepping motor 2 is installed on the bottom surface of the lifting plate 12, and the output shaft is fixedly connected with the shaft center of one of the transmission gears 11; the other transmission gear 11 is fixedly sleeved on the center sleeve 7 of the rotating plate 10. When the stepping motor 2 operates, the driving gear connected with the stepping motor 2 rotates, and drives the driven gear, the rotating plate 10 and the pressing block 4 to rotate through the meshing transmission, thereby realizing the bionic rubbing operation.

[0055] In this embodiment, in addition to the stepper motor one 6, the stepper motor two 9 and the pressure sensor 18, the device is also integrated with various high-precision sensors to perceive the user's state in real time, mainly including a gyroscope, a heart rate sensor and a surface electromyography sensor. The gyroscope adopts the MPU-6050 model of TDK Company, is installed on the restraint member, is used for detecting the moving speed and the angle change of the joint of the patient in real time, so as to judge whether the patient is in the state of turning over or awakening. The surface electromyography sensor selects the MyoWare Muscle Sensor model of Advancer Technologies Company, is attached to the inner surface of the restraint member and contacts the skin of the patient, is used for monitoring the electromyography signal intensity of the muscle group around the joint, so as to evaluate the muscle tension degree and the pain response. The heart rate sensor adopts the MAX30102 model of Maxim Integrated, can be embedded in the inner side of the restraint member according to the richness of blood vessels in the joint position, or can be separately installed on the other signal stable position (such as the chest, the earlobe or the wrist radial artery) of the patient in the form of a patch, a wristband or an ear clip through a flexible circuit or a wire connection. The installation position is not limited, as long as it is electrically connected with the microcontroller. The heart rate sensor is used for collecting physiological parameters such as heart rate variability (HRV) and blood oxygen saturation, to assist in judging the sleep stage and the pain stress state. The data of each sensor jointly constitute a multi-modal perception signal input, to provide a decision basis for the intelligent switching of the pressing and kneading modes of the system. The microcontroller adopts the high-performance ARM Cortex-M4 kernel chip of STM32F4 series of STMicroelectronics, is responsible for real-time acquisition, fusion processing and mode judgment of the multi-channel sensor signals, and accurately controls the cooperative work of the two stepper motors.

[0056] In this embodiment, the core control unit of the system is a microcontroller (adopting STM32F4 series), as shown in Figure 4 , which is electrically connected with the stepper motor one 6, the stepper motor two 9, the pressure sensor 18, the gyroscope, the heart rate sensor and the surface electromyography sensor. The microcontroller is responsible for real-time acquisition and fusion of multi-source sensor signals, judges the user's state according to the preset judgment mode, and triggers the soft pressing or bionic kneading operation accordingly.

[0057] The specific state judgment and response logic is as follows:

[0058] 1. Pain and wake-up state (only trigger soft pressing)

[0059] When the surface electromyography sensor detects a persistent low-frequency tension signal (frequency range: 2-4 Hz, amplitude threshold: greater than 20%-50% of the resting baseline) in the muscles around the joint, the heart rate sensor shows that the heart rate is 10%-20% higher than the sleep baseline value or the low / high frequency power ratio (LF / HF) of heart rate variability (HRV) is consistently higher than 3-4, and the gyroscope detects that the limb angular velocity is lower than 30° / s and there is no sudden large movement (angular acceleration threshold: less than 100° / s ²) - at this time the microcontroller judges that the patient is in a light sleep state of pain discomfort but has not yet woken up. The microcontroller will control the step motor 6 to perform a gentle pressing to relieve discomfort and avoid waking up the user.

[0060] 2. Pain wake-up state (triggered bionic pressing and rubbing)

[0061] When the surface electromyography signal shows a sharp mutation (amplitude rises by 80%-150% of the resting value within 1 second, and the frequency component extends to 5-50 Hz), and the gyroscope detects that the joint angular velocity instantaneously exceeds 100° / s (angular acceleration exceeds 500° / s ²) and the duration of the movement is greater than 2 seconds, accompanied by a sharp rise in heart rate of more than 25% above the baseline within 30 seconds or a decrease in blood oxygen saturation of more than 3%-4% - at this time the microcontroller judges that the patient is awakened due to severe joint pain. The microcontroller will immediately start the step motor 2 9 to drive the bionic pressing and rubbing mechanism to perform strong bionic pressing and rubbing on the acupoint to quickly relieve pain.

[0062] 3. Natural wake-up state (no trigger or low-intensity operation)

[0063] When the gyroscope detects a change in body posture (angular velocity 20-60° / s) or an increase in activity amplitude, the heart rate sensor shows that the heart rate is within the normal wake-up range (60-100 bpm) and changes smoothly (SDNN value of HRV is between 20-50 ms), but the surface electromyography signal is stable (amplitude fluctuation is less than 15% of the resting value, main frequency distribution is 1-3 Hz) without abnormal pain characteristics - at this time the microcontroller judges that the user is in a natural wake-up state rather than caused by pain. The microcontroller can suspend the stimulation output or maintain a very low intensity (force less than 10 kPa) of the soothing pressing mode to avoid unnecessary disturbance to the user.

[0064] The microcontroller dynamically distinguishes between the above states by continuously fusing multi-modal physiological and motion signals, thereby achieving intelligent and humanized pain intervention and sleep protection.

[0065] Working principle: when the microcontroller determines that the patient has arthritis pain and is not awake, the microcontroller only controls the rotation of the step motor 6, which drives the rotation of the lead screw 5, and the sleeve 7, the lifting plate 12, the fixed rod 8 and the pressing and rubbing block 3 move up and down synchronously. In this embodiment, the pressure threshold set in the microcontroller is 10-30 kPa (to ensure the patient's sleep), and when the pressure value sensed by the pressure sensor 18 reaches the set threshold, the microcontroller immediately controls the step motor 6 to rotate in the opposite direction. Through such periodic reciprocating motion, safe and gentle pressing operation on the acupoint is realized.

[0066] When the microcontroller determines that the patient has arthritis pain and wakes up, the microcontroller will first drive the step motor 6 to rotate, so that the pressing and rubbing block 3 has a certain pressure value (the pressure value can be set to (force control in 40-80 kPa) with the patient's skin surface, and then control the rotation of the step motor 9. The step motor rotates through the two transmission gears 11 to make the rotating plate 10 rotate as a whole, and at the same time the rotating plate 10 drives the extrusion block 4 to rotate around the axis of the rotating plate 10, so that the pressing and rubbing block 3 performs pressing and rubbing operation on each acupoint to quickly relieve pain.

[0067] Embodiment 2: a sleep aid device for relieving arthritis pain, which provides a new structure of a lifting unit.

[0068] The lifting unit of the present embodiment mainly consists of an airflow reversing structure and a reset structure. In addition, as shown in Figure 9 The side wall of the lifting plate 12 of the present embodiment is in sealing sliding contact with the inner side wall of the shell 2, and a sealed cavity is formed between the top surface of the lifting plate 12 and the shell 2. The reset structure of the present embodiment uses a reset spring 13, the top end of which is fixedly connected to the top surface of the shell 2, and the bottom end of which is fixedly connected to the top surface of the lifting plate 12. The pressure sensor 18 of the present embodiment is arranged in the sealed cavity.

[0069] The airflow reversing structure mainly consists of a three-way valve, an air inlet pipe 17, an air outlet pipe 14 and a connecting pipe 15. The ends of the air inlet pipe 17 and the air outlet pipe 14 are fixedly connected to the two reversing ends of the three-way valve, respectively, the connecting pipe 15 is fixedly connected to the common end of the three-way valve, and the end of the connecting pipe 15 away from the three-way valve is in communication with the sealed cavity. The end of the air outlet pipe 14 away from the three-way valve is in communication with the outside of the shell 2. The end of the air inlet pipe 17 away from the three-way valve is connected to the power source.

[0070] The power source of the present embodiment is different from that of Embodiment 1. In the present embodiment, a low-noise micro air pump is selected as the power source. Preferably, the FC series micro diaphragm pump produced by Techno Takatsuki Co., Ltd. of Japan is selected. The working noise of the pump is lower than 30 decibels, and the maximum output pressure can reach 100 kPa. The air outlet of the micro air pump is connected to multiple air conveying tubes through a liquid distribution head, and the multiple air conveying tubes are connected to the air inlets 17 of multiple multi-modal stimulation mechanisms.

[0071] In the present embodiment, the liquid distribution head is a Venturi liquid distribution head. The Venturi liquid distribution head can uniformly distribute fluid. The multiple multi-modal stimulation mechanisms can simultaneously achieve the same stimulation effect.

[0072] Figure 10 The specific structure of the three-way valve used in the present embodiment is shown. The three-way valve mainly includes a spherical shell 19, a spherical body 21, and a servo motor 16. The spherical body 21 is rotatably arranged in the spherical shell 19 and is driven by the servo motor 16. An L-shaped flow passage is arranged in the spherical body 21. Under the control of the servo motor 16, the spherical body 21 rotates, so that one end (a common end) of the L-shaped flow passage is always in communication with the connecting pipe 15, and the other end (a reversing end) can be alternately in communication with the air inlet pipe 17 or the air outlet pipe 14, thereby realizing the switching of the air flow direction.

[0073] In the present embodiment, the state judgment of the patient and the response logic are the same as those of Embodiment 1, and thus will not be described herein.

[0074] In order to avoid the influence of the noise of the micro air pump on the sleep of the patient, the micro air pump can be placed under the bed during normal use.

[0075] Working principle: When the microcontroller determines that the patient is in a state of arthralgia pain but has not woken up, the microcontroller adjusts the rotation of the servo motor 16 to make the L-shaped passage 20 communicate the air inlet pipe 17 with the connecting pipe 15. At this time, the micro air pump pressurizes and delivers the gas into the sealed cavity, and pushes the lifting plate 12 to move downward. When the pressing and rubbing block 3 contacts and presses the acupoint of the patient, the pressure in the sealed cavity gradually rises. Once the pressure sensor 18 detects that the pressure exceeds the set threshold value (10-30 kPa), the microcontroller controls the servo motor 16 to rotate to switch the L-shaped passage 20 to the state of communicating the connecting pipe 15 with the air outlet pipe 14, so that the high-pressure gas in the sealed cavity is discharged through the air outlet pipe 14.

[0076] In the present embodiment, the lifting plates 12 in the multiple multi-modal stimulation mechanisms can adopt an interleaved working mechanism (for example, one lifting plate 12 is raised while the other is lowered). This design makes it unnecessary for the micro air pump to frequently start and stop, and the air flow can be distributed to the sealed cavities of different mechanisms. The microcontroller can realize a soft pressing operation by only controlling the rotation direction of the servo motor 16.

[0077] When the microcontroller determines that the patient wakes up due to arthritic pain, the air pressure in the sealed cavity will be maintained at a higher preset range (40-80 kPa). At this time, the microcontroller controls the servo motor 16 to rotate, so that the L-shaped passage 20 is disconnected from the air inlet pipe 17 and the air outlet pipe 14, and the sealed cavity is in a closed high-pressure state. Subsequently, the microcontroller starts the stepper motor two 9 to operate, driving the rotating plate 10 to rotate to achieve the effect of pressing and rubbing.

[0078] Embodiment 3: A sleep aid device for relieving arthritic pain, this embodiment provides a new type of bionic massage device driving unit. As shown in Figure 13 and Figure 15 , the driving unit mainly includes a cylindrical sealed shell, a rotating shaft 27, four blades 26, a pressurizing pipe and an exhaust pipe. The sealed shell is fixedly installed on the bottom surface of the lifting plate 12, and the lifting plate 12 is arranged in the same way as in Embodiment 2, and the top thereof constitutes a sealed cavity. The rotating shaft 27 is fixedly sleeved on the central shaft of the rotating plate 10, and the shaft center is in sealed rotary connection with the sealed shell to ensure air tightness and prevent gas leakage.

[0079] The four blades 26 are distributed along the side wall of the rotating shaft 27 at equal arc lengths, dividing the inside of the sealed shell into multiple independent sealed chambers. One end of the pressurizing pipe and the exhaust pipe is in communication with the inside of the sealed shell, and the other end of the exhaust pipe leads to the outside of the shell 2. When the micro gas pump continuously pressurizes, the airflow can drive the blades 26 to rotate, and then drive the rotating shaft 27 to rotate, and finally the gas is discharged through the exhaust pipe. Through this gas pressure driving mode, the rotating motion of the rotating shaft 27, the rotating plate 10 and the extrusion block 4 is realized, thereby simulating the pressing and rubbing effect.

[0080] In order to reduce the number of driving elements, the pressurizing pipe passes through the lifting plate 12 in this embodiment, so that it is connected with the sealed cavity on the top of the lifting plate 12, and an elastic one-way valve is arranged at the connection, which only allows airflow to flow from the sealed cavity into the sealed shell.

[0081] As shown in Figure 14 , the elastic one-way valve mainly consists of a support frame 25, a reset spring two 24, a ring-shaped limiting plate 23 with a through hole and a sealing plate 22. The support frame 25 and the limiting plate 23 are fixedly installed on the inner wall of the pressurizing pipe. One end of the reset spring two 24 is connected to the support frame 25, and the other end passes through the limiting plate 23 and is connected to the sealing plate 22. Under normal pressure, the tension of the reset spring two 24 makes the sealing plate 22 tightly adhere to the limiting plate 23, blocking the airflow; when the pressure in the sealed cavity rises to a certain value, the air pressure overcomes the spring force to open the sealing plate 22, allowing the airflow to enter the sealed shell and drive the rotating plate 10 and the extrusion block 4 to rotate.

[0082] In the soft pressing mode, the pressure threshold set by the microcontroller is lower than the pressure required to displace the return spring 24, so the one-way valve remains closed in this state. Only a single external micro-pump can achieve both flexible pressing and rotating and kneading operation modes.

[0083] The state judgment of the patient and the response logic of this embodiment are the same as those of embodiment 1, which will not be described here.

[0084] Working principle: when the microcontroller determines that the patient is in the arthralgia pain wake-up state, the pressure mode and the control logic of the servo motor 16 are the same as those of embodiment 2. In this state, the pressure in the sealed cavity is not enough to open the one-way valve, and the servo motor 16 is controlled to achieve flexible pressing.

[0085] When the microcontroller determines that the patient wakes up due to pain, the L-shaped passage 20 connects the connecting pipe 15 and the air inlet pipe 17, and the micro-pump continuously pressurizes to make the pressure in the sealed cavity reach the maximum value. At this time, the airflow opens the one-way valve into the sealed shell, pushes the blade 26 and the rotating shaft 27 to rotate, and then drives the rotating plate 10 and the extrusion block 4 to perform pressing and kneading action.

[0086] The innovation of this driving unit significantly reduces the number of power elements used, reduces the operating noise, and saves the manufacturing cost of the driving components.

[0087] Embodiment 4: a sleep auxiliary device for relieving arthralgia pain, which provides a new type of stimulation head structure. As shown in Figure 18 The stimulation head adopts the structure of the air bag 28, and the top is a hard plate. The reset structure is composed of a pressure relief pipe 29 and a pressure relief valve 30. The pressure relief pipe 29 is directly connected with the air bag 28, and the pressure relief valve 30 is installed on the pressure relief pipe 29.

[0088] The airflow reversing valve structure used in this embodiment is the same as that of embodiment 3. The connecting pipe 15 is directly connected with the air bag 28. Since the air bag 28 needs to have a certain swinging ability, the connecting pipe 15 is made of soft pipe material. The common end of the three-way valve is connected with the air inlet pipe 17, and the two reversing ends are respectively connected with the connecting pipe 15 and the air outlet pipe 14.

[0089] The bionic massage device part is consistent with the structure of embodiment 3, and the pressurizing pipe is connected with the air outlet pipe 14 in this embodiment. By controlling the servo motor 16, the switching between the soft pressing and the bionic massage two modes can be realized.

[0090] The pressure sensor 18 is arranged inside the air bag 28. In the soft pressing mode, the pressing effect is achieved by controlling the expansion and contraction of the air bag 28, and the pressure inside the air bag 28 is preset to be 10-30 kPa when expanded. By coordinating the control of the servo motor 16 and the pressure relief valve 30, the inflation and deflation of the air bag 28 can be accurately adjusted, thereby realizing stable and soft pressing.

[0091] In the bionic massage mode, the servo motor 16 controls the rotation of the ball 21 to make the L-shaped passage 20 communicate with the air inlet pipe 17 and the air outlet pipe 14. At this time, the micro air pump pumps air into the sealed shell 2, driving the rotating plate 10 and the extrusion block 4 to rotate, thereby achieving the bionic kneading effect.

[0092] The state judgment and response logic of the patient in this embodiment are the same as those in Embodiment 1, which will not be repeated here.

[0093] Working principle: When the microcontroller judges that the patient is in arthralgia pain but is not awake, the pressure control logic is the same as that in Embodiment 3. At this time, the microcontroller drives the servo motor 16 to make the L-shaped passage 20 of the three-way valve communicate with the air inlet pipe 17 and the connecting pipe 15. After the airflow enters the air bag 28, the air bag 28 is inflated to achieve soft pressing on the joint acupoints of the patient. When the pressure in the air bag 28 reaches the set threshold, the microcontroller starts the pressure relief valve 30 and controls the rotation of the ball 21 to cut off the communication between the air inlet pipe 17 and the connecting pipe 15, and the air bag 28 is deflated. By repeating this inflation and deflation process, periodic soft pressing operation can be achieved.

[0094] When the microcontroller judges that the patient wakes up due to pain, the microcontroller adjusts the L-shaped passage 20 to make the air inlet pipe 17 communicate with the air outlet pipe 14. The airflow pressurized by the micro air pump enters the sealed shell 2, driving the blade 26 and the rotating shaft 27 to rotate, and then driving the air bag 28 to perform bionic massage action.

[0095] In this embodiment, the air bag 28 is used as the stimulation head, and the sealed cavity structure is omitted, effectively reducing the overall volume of the shell 2 and reducing the physical interference to the joint parts of the patient. This design significantly improves the applicability and comfort of the device, especially for joints such as cervical spine and lumbar spine, so that the patient can use it normally in different body positions.

[0096] It should be particularly pointed out that any structure design capable of realizing the switching between the soft pressing and bionic massage two function modes in the multi-modal stimulation mechanism involved in the present application falls within the protection scope of the claims of the present application.

[0097] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sleep aid device for alleviating arthritic pain, characterized by, The auxiliary device comprises a restraint worn on a joint position of a patient, a surface of the restraint is provided with a plurality of multi-modal stimulation mechanisms for stimulating a joint acupoint mechanically, and the auxiliary device further comprises a power source, a gyroscope, a surface electromyography sensor and a heart rate sensor; the power source provides stimulation power for the plurality of multi-modal stimulation mechanisms; The multi-modal stimulation mechanism comprises an open-bottomed shell (2), a pressing device and a bionic massage device arranged in the shell (2); the pressing device is used for pressing the joint acupoint; the bionic massage device is in transmission connection with the pressing device and is used for driving the pressing surface of the pressing device to swing so as to simulate a pressing and rubbing action to press and rub the joint acupoint; The pressing device comprises a lifting plate (12), a lifting unit, a fixed rod (8) and a stimulation head; the top of the lifting plate (12) is connected with a driving end of the lifting unit; the top end of the fixed rod (8) is fixedly connected with the bottom surface of the lifting plate (12), and the bottom end of the fixed rod (8) is rotationally connected with the stimulation head; the power source provides power for the lifting unit; The bionic massage device comprises a driving unit, a rotating plate (10) and a squeezing block (4); the rotating plate (10) is rotationally sleeved on the fixed rod (8), and the driving unit is used for driving the rotating plate (10) to rotate; the squeezing block (4) is fixedly arranged on the bottom surface of the rotating plate (10); The lifting unit comprises an airflow reversing structure and a reset structure; the airflow reversing structure is used for providing pressing power for the stimulation head, and the reset structure controls the reset of the stimulation head; the airflow reversing structure and the reset structure are used in cooperation to control the pressing operation of the stimulation head on the acupoint; the air inlet end of the airflow reversing structure is connected with the power output end of the power source; The airflow reversing structure comprises an air inlet pipe (17), a three-way valve, a connecting pipe (15) and an air outlet pipe (14); one end of the connecting pipe (15) is connected with the common port of the three-way valve, and the other end is used for pressurizing the stimulation head to control the pressing operation of the stimulation head; one end of the air inlet pipe (17) is connected with one of the reversing ports of the three-way valve, and the other end is connected with the power output end of the power source; one end of the air outlet pipe (14) is connected with the other reversing port of the three-way valve; The lifting plate (12) is sealingly and slidably connected with the inner side wall of the shell (2), so that the top surface of the lifting plate (12) forms a sealed cavity; the end of the connecting pipe (15) away from the three-way valve is in communication with the sealed cavity; the end of the air outlet pipe (14) away from the three-way valve is in communication with the outside; the reset structure is a spring, and the two ends of the spring are fixedly connected with the top surface of the shell (2) and the top surface of the lifting plate (12) respectively; The driving unit comprises a cylindrical sealing shell, a rotating shaft (27), a plurality of blades (26), a pressurizing pipe and an exhaust pipe; the sealing shell is fixedly arranged in the shell (2), the rotating shaft (27) is fixedly sleeved on the central shaft of the rotating plate (10), the blades (26) are distributed along the side wall of the rotating shaft (27) at equal arc lengths and separate the inside of the sealing shell into a plurality of sealed chambers, and one end of the pressurizing pipe and the exhaust pipe is in communication with the inside of the sealing shell, and the other end of the exhaust pipe is located outside the shell (2); The end of the pressurizing pipe away from the sealing shell is in communication with the sealed cavity at the top of the lifting plate (12), and an elastic one-way valve is arranged in the pressurizing pipe; When the power source outputs a pressure lower than the pressure threshold at which the elastic one-way valve opens, the sealed cavity on the top of the lifting plate is pressurized, and the direction adjustment of the airflow reversing structure and the elastic restoring action of the reset structure in the lifting unit make the lifting plate reciprocate, so as to realize the soft pressing operation of the stimulating head on the joint. When the power source outputs a pressure higher than the pressure threshold at which the elastic one-way valve opens, the sealed cavity on the top of the lifting plate is pressurized, and the lifting plate moves to the lower limit under the action of the pressure, and the airflow pushes away the elastic one-way valve, and the driving unit starts to rotate. This action makes the stimulating head rotate while keeping pressing the joint.

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