Novel auxiliary rehabilitation brace for lower limbs of paralytic

Abstract

The invention relates to the technical field of rehabilitation training, in particular to a novel paralytic lower limb auxiliary rehabilitation brace which comprises a leg supporting assembly, a foot supporting assembly, an ankle pump driving assembly, a leg circumference monitoring assembly, an air pressure massage assembly and a control module. The foot supporting assembly is used for supporting the feet of a user; the ankle pump driving assembly is used for driving the foot supporting assembly to rotate relative to the leg supporting assembly; the leg circumference monitoring assembly is used for monitoring muscle circumference information of legs of a user; the air pressure massage assembly is used for conducting air pressure massage on the legs of the user. The ankle pump driving assembly, the air pressure massage assembly and the leg circumference monitoring assembly are all electrically connected with the control module, and the control module is used for controlling and adjusting the air pressure massage assembly according to muscle circumference information monitored by the leg circumference monitoring assembly. The rehabilitation brace can well fix the lower limbs, prevent complications, assist treatment and promote muscle strength recovery of the lower limbs.

Description

Technical Field

[0001] This application relates to the technical field of rehabilitation training, and particularly to a new type of lower limb assisted rehabilitation brace for stroke patients. Background Art

[0002] Hemiplegia will occur in the early stage of stroke patients. If good limb position placement and lower limb rehabilitation training are not carried out, conditions such as foot drop and varus / valgus deformity of the foot will occur, and in severe cases, deep vein thrombosis will occur. Some family members may not follow the doctor's advice well due to various factors, or the patient has a severe stroke with consciousness disorder. Even if the posture is adjusted well, the patient will involuntarily return to the original posture, resulting in all previous efforts being wasted. Summary of the Invention

[0003] This application provides a new type of lower limb assisted rehabilitation brace for stroke patients, which can well fix the lower limbs, prevent complications, and also assist in treatment to promote the recovery of the lower limb muscle strength of the user.

[0004] An embodiment of this application provides a new type of lower limb assisted rehabilitation brace for stroke patients. The new type of lower limb assisted rehabilitation brace for stroke patients includes a leg support component, a foot support component, an ankle pump driving component, a leg circumference monitoring component, a pneumatic massage component, and a control module. The leg support component is used for the user's leg to pass through and be positioned; one end of the foot support component is hinged to the leg support component, and the foot support component is used to support the user's foot; the ankle pump driving component is arranged on the leg support component, and the ankle pump driving component is used to drive the foot support component to rotate relative to the leg support component; the leg circumference monitoring component is arranged on the leg support component, and the leg circumference monitoring component is used to monitor the muscle circumference information of the user's leg; the pneumatic massage component is arranged on the leg support component, and the pneumatic massage component is used to perform pneumatic massage on the user's leg; the ankle pump driving component, the pneumatic massage component, and the leg circumference monitoring component are all electrically connected to the control module, and the control module is used to control and adjust the pneumatic massage component according to the muscle circumference information monitored by the leg circumference monitoring component.

[0005] In this solution, by providing a leg support component, a foot support component, and an ankle pump drive component, the foot support component can be used for the user to place their feet, providing support for the legs and preventing foot drop and varus / valgus deformities. The user's calf leans against the leg support component, and under the action of the ankle pump drive component, the foot support component is driven to rotate forward or backward relative to the leg support component, so that the user's ankle joint can perform the forward and backward stretching movements of the ankle pump exercise, assisting the sole of the foot to swing up and down, that is, driving the toes to hook up during dorsiflexion, or the toes to stretch down during plantar flexion, thereby increasing the user's blood flow rate, promoting blood circulation, preventing the occurrence of lower limb DVT, and preventing deep vein thrombosis. Through the setting of the leg circumference monitoring component and the pneumatic massage component, the leg circumference monitoring component can be used to intermittently monitor the muscle circumference of the user in real time. According to the monitoring results of the user's muscle circumference, the control module can automatically adjust the pneumatic intensity of the pneumatic massage component according to the actual situation of the user, which can better adapt to the rehabilitation needs of the patient, promote the recovery of lower limb muscle strength, be more targeted, and have a better rehabilitation effect.

[0006] In some embodiments, the foot support component includes a footrest and a plurality of limiting bandages. One end of the footrest is hinged to one end of the leg support component close to the footrest. The plurality of limiting bandages are arranged at intervals along the length direction of the footrest. The limiting bandages are arranged on the footrest and are used to limit and fix the user's feet on the footrest so that the user's feet can move with the footrest.

[0007] In the above solution, by providing limiting bandages on the footrest, the limiting bandages can be used to surround and bind the user's feet, so that the user's feet can always move with the footrest. And by setting the number of limiting bandages to be multiple, the multiple limiting bandages cooperate to perform multi-point limiting on the user's feet, providing a better sense of restraint on the feet and a better user experience for the user.

[0008] In some embodiments, the footrest includes a body and a foot portion. The body is hinged to the leg support component. The foot portion is arranged on the body and is used for the user to place their feet. Along the length direction of the footrest, the foot portion includes a first fixed plate and a first movable plate. The first fixed plate is fixedly arranged on the body, and the first movable plate is slidably arranged on the first fixed plate so that the length of the foot portion is adjustable.

[0009] In the above solution, since the foot sizes of different users are different, by setting the entire footrest to be length-adjustable, the first movable plate is moved on the first fixed plate to adjust the length of the footrest, so as to adapt to different users, with a wider application range and being beneficial to ensuring the user experience of the user.

[0010] In some embodiments, the ankle pump driving assembly includes two first electric push rods, which are respectively arranged on both sides in the width direction of the foot pedal. One end of each first electric push rod is hinged to the foot pedal, and the other end is hinged to the leg support assembly.

[0011] In the above solution, the ankle pump driving assembly is adopted as the first electric push rod. The first electric push rod realizes the rotational adjustment between the foot pedal and the leg support assembly through telescoping. The first electric push rod is convenient to purchase, has a low cost, occupies a small volume, and is easy to implement. Moreover, the two first electric push rods are respectively located on both sides of the foot pedal, and can cooperate together to realize the synchronous rotation of the left and right sides of the foot pedal, and the stability of the foot pedal flipping process is higher.

[0012] In some embodiments, the leg support assembly includes a support frame, an inner pad, and at least one openable and closable fastening portion. The support frame is hinged to the foot support assembly. The inner pad is a semi-circular arc structure made of a flexible material. Both sides of the inner pad are respectively connected to the two ends in the width direction of the support frame and are arranged inside the support frame. The fastening portion is arranged on the side of the support frame facing away from the inner pad, and the fastening portion is a magic tape with a semi-circular arc structure.

[0013] In the above solution, by adopting the inner pad made of a flexible material and arranging the inner pad inside the support frame, the inner pad can play a role in supporting and limiting the inner side of the patient's leg, and the inner pad is made of a flexible material, so that the user's leg is more comfortable after contact. By providing at least one fastening portion, and the fastening portion is a magic tape, which can be opened or closed relative to the support frame. When the user's leg penetrates into the leg support assembly, the rough surface and the hook surface of the magic tape can be separated. After the user's leg is placed and leaned against the inner pad, the rough surface and the hook surface of the magic tape are pasted and fixed, and the operation is convenient and fast, which is beneficial for the user to more conveniently penetrate the leg into the leg support assembly.

[0014] In some embodiments, the pneumatic massage assembly includes a support ring, an airbag, and a gas supply assembly. The gas supply assembly is arranged on the support frame. The support ring is connected to the support frame. The airbag is a ring structure. The airbag is arranged inside the support ring and is connected to the support ring. The gas supply assembly is used to inflate or deflate the airbag.

[0015] In the above solution, the support ring serves as the installation base of the airbag. The airbag is installed inside the support ring. The user's leg penetrates through the center of the airbag. When the leg penetrates, the airbag is in an uninflated state and has a larger diameter, which is beneficial for the user's leg to penetrate. The air pressure parameters of the airbag can be correspondingly adjusted according to the monitoring data of the leg circumference monitoring component, the user's own situation, and the user's tolerance, so as to better realize the pneumatic massage of the user's leg.

[0016] In some embodiments, the support frame includes two oppositely arranged guide rods, and two ends of the inner pad are respectively connected to the two guide rods; the pneumatic massage assembly further includes a first driving member disposed on the support frame, and the first driving member is configured to drive the support ring to drive the airbag to slide along the length direction of the guide rod so as to adjust the position of the support ring.

[0017] In the above solution, since the support frame includes two guide rods and the support ring is slidably engaged with the guide rods, under the action of the first driving member, the position of the airbag on the support frame can be adjusted, and the position of the airbag can be adjusted according to the specific situation of the user. The airbag can perform pneumatic massage on the corresponding area of the user, reducing the length of the airbag in the length direction of the support frame, and also facilitating the better passing of the patient's leg through the hollow position of the airbag. During actual use, the control module can control the first driving member to drive in a time-sharing manner. For example, the length direction of the user's leg is divided into multiple different areas. After the airbag completes pneumatic massage on one area of the user's leg, the airbag deflates and contracts, and the first driving member drives the airbag to continue to move to the next position, and then massages the next area of the user's leg, and so on, to achieve pneumatic massage on all areas of the user's leg.

[0018] In some embodiments, the leg circumference monitoring assembly includes a plurality of infrared monitoring sensors disposed inside the airbag and evenly distributed along the circumference of the airbag. The infrared monitoring sensors are electrically connected to the control module; the airbag includes a first inner peripheral wall and a second inner peripheral wall oppositely arranged along its radial direction, and the first inner peripheral wall is located outside the second inner peripheral wall; the infrared monitoring sensors are configured to detect the distance between the first inner peripheral wall and the second inner peripheral wall of the annular airbag; the calculation module in the control module is configured to calculate the circumference of the second inner peripheral wall of the airbag according to the data measured by the plurality of infrared monitoring sensors.

[0019] In the above solution, by arranging a plurality of infrared monitoring sensors along the circumference of the airbag, during use, the user's leg is inserted into the airbag, and the air supply assembly is used to inflate the deflated airbag. When the airbag expands to the point where the inner side of the second inner peripheral wall just completely adheres to the leg, the inflation stops. The calculation module in the control module reads the distances between the first inner peripheral wall and the second inner peripheral wall measured by the plurality of infrared monitoring sensors (for example, infrared ranging sensors), and calculates the circumference of the second inner peripheral wall according to the plurality of distance data. The circumference of this second inner peripheral wall is the muscle circumference of the user, that is, the leg circumference.

[0020] In some embodiments, a pressure sensor, a muscle tension sensor, and a multi-axis acceleration sensor are provided on the footrest. The pressure sensor is used to monitor the bearing force in real time, and the muscle tension sensor is used to monitor the muscle tension information of the user's feet; at least one Doppler blood flow monitoring probe is provided on the footrest, and the Doppler blood flow monitoring probe is used to monitor the blood flow state of the user's feet in real time; the Doppler blood flow monitoring probe, the pressure sensor, the muscle tension sensor, and the multi-axis acceleration sensor are all electrically connected to the control module.

[0021] In the above solution, by providing a pressure sensor on the footrest, the bearing force can be monitored in real time, and combined with the multi-axis acceleration sensor, the gait data of the user can be monitored. The Doppler blood flow monitoring probe is used to monitor the blood flow state of the user's feet in real time. The collected data is transmitted to the supporting mobile device or cloud through Bluetooth or Wi-Fi. The control module can analyze data such as the bearing force and the force application area of the user in combination with the AI algorithm to assist the therapist in formulating a phased rehabilitation plan.

[0022] In some embodiments, a plurality of electrode patches are further provided on the inner pad of the support frame. The plurality of electrode patches are spaced along the circumferential direction and / or the length direction of the inner pad, and the electrode patches are used to contact the user's legs; the lower limb assisted rehabilitation brace for stroke patients further includes a control screen, and a plurality of control buttons are provided on the control screen.

[0023] In the above solution, by providing electrode patches on the inner pad, the electrode patches use low-frequency current stimulation to promote the recovery of the user's muscle strength, make the user's leg muscles tense and the calf bend, and promote the recovery of the user's lower limb muscle strength, so as to achieve the purpose of improving the rehabilitation effect. The control screen can realize human-computer interaction, which is beneficial for the user or the caregiver to better control the device and has a better user experience.

[0024] The beneficial effects of the present application mainly lie in: through the setting of the leg circumference monitoring component and the pneumatic massage component, the leg circumference monitoring component can be used to intermittently monitor the muscle circumference of the user in real time, and according to the monitoring results of the user's muscle circumference, the control module can automatically adjust the air pressure intensity of the pneumatic massage component according to the actual situation of the user, which can better adapt to the rehabilitation needs of the patient, promote the recovery of lower limb muscle strength, be more targeted, and have a better rehabilitation effect.

[0025] It should be understood that the foregoing general description and the following detailed description are both for the purposes of illustration and example and are not necessarily limiting to the present application. The accompanying drawings incorporated in and constituting a part of the specification illustrate the subject matter of the present application. At the same time, the specification and the drawings are used to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of a novel lower limb assisted rehabilitation brace for stroke patients provided by some embodiments of the present application; Figure 2 Front view of the leg support assembly in the novel lower limb assisted rehabilitation brace for stroke patients provided by some embodiments of the present application; Figure 3 For Figure 1 Structural schematic diagram of the foot support assembly in the novel lower limb assisted rehabilitation brace for stroke patients; Figure 4 For Figure 2 Structural schematic diagram of the pneumatic massage assembly and the leg circumference monitoring assembly; Figure 5 Control logic schematic diagram of the novel lower limb assisted rehabilitation brace for stroke patients provided by some embodiments of the present application.

[0028] Icon: Leg support assembly 10, support frame 11, guide rod 111, inner pad 12, fastening part 13, foot support assembly 20, footrest 21, body 211, footrest part 212, first fixing plate 2121, first movable plate 2122, chute 2123, slider 2124, limit bandage 22, hook surface of magic tape 221, loop surface of magic tape 222, ankle pump drive assembly 30, first electric push rod 31, leg circumference monitoring assembly 40, infrared monitoring sensor 41, pneumatic massage assembly 50, support ring 51, airbag 52, first inner peripheral wall 521, second inner peripheral wall 522, air supply assembly 53, first driving part 54, control module 60, electrode patch 70, pressure sensor 71, Doppler blood flow monitoring probe 72, muscle tension sensor 73, multi-axis acceleration sensor 74, control screen 75, operation button 751, mounting substrate 76. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions of the present application with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments.

[0030] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] The embodiment of the present application provides a novel lower limb assisted rehabilitation brace for stroke patients. Please refer to Figures 1 to 5 , the novel lower limb assisted rehabilitation brace for stroke patients includes a leg support assembly 10, a foot support assembly 20, an ankle pump drive assembly 30, a leg circumference monitoring assembly 40, a pneumatic massage assembly 50, and a control module 60. The leg support assembly 10 is used for the user's leg to pass through and be positioned; one end of the foot support assembly 20 is hinged to the leg support assembly 10, and the foot support assembly 20 is used to support the user's foot; the ankle pump drive assembly 30 is arranged on the leg support assembly 10, and the ankle pump drive assembly 30 is used to drive the foot support assembly 20 to rotate relative to the leg support assembly 10; the leg circumference monitoring assembly 40 is arranged on the leg support assembly 10, and the leg circumference monitoring assembly 40 is used to monitor the muscle circumference information of the user's leg; the pneumatic massage assembly 50 is arranged on the leg support assembly 10, and the pneumatic massage assembly 50 is used to perform pneumatic massage on the user's leg; the ankle pump drive assembly 30, the pneumatic massage assembly 50, and the leg circumference monitoring assembly 40 are all electrically connected to the control module 60, and the control module 60 is used to control and adjust the pneumatic massage assembly 50 according to the muscle circumference information monitored by the leg circumference monitoring assembly 40.

[0034] In this solution, by providing a leg support component 10, a foot support component 20, and an ankle pump drive component 30, the foot support component 20 can be used for the user to place their feet, providing support for the legs and preventing foot drop and varus / valgus deformities. The user's calf leans on the leg support component 10, and under the action of the ankle pump drive component 30, the foot support component 20 is driven to rotate forward or backward relative to the leg support component 10, enabling the user's ankle joint to perform the forward and backward stretching movements of the ankle pump exercise, assisting the foot to swing up and down, that is, driving the toes to hook upward during dorsiflexion, or the toes to extend downward during plantar flexion, thereby increasing the user's blood flow velocity, promoting blood circulation, preventing the occurrence of lower limb DVT, and preventing deep vein thrombosis. Through the setting of the leg circumference monitoring component 40 and the pneumatic massage component 50, the leg circumference monitoring component 40 can be used to intermittently monitor the muscle circumference of the user in real time, and based on the monitoring results of the user's muscle circumference, the control module 60 can automatically adjust the pneumatic intensity of the pneumatic massage component 50 according to the actual situation of the user, which can better adapt to the rehabilitation needs of the patient, promote the recovery of the user's lower limb muscle strength, be more targeted, and have a better rehabilitation effect.

[0035] The leg support component 10 and the foot support component 20 are rotationally connected through a bearing or a hinge, enabling relative rotation between the leg support component 10 and the foot support component 20. In this embodiment, the leg support component 10 and the foot support component 20 are rotationally connected through a bearing. The ankle pump drive component 30 is electrically connected to the control module 60. The control module 60 is input with preset parameters, and the rotation amplitude of the ankle pump drive component 30 and the time maintained after reaching the rotation position can be controlled through a program preset in the control module 60.

[0036] In addition, a counter can also be set in the control module 60. The counter can calculate and count the number of reciprocating movements of the ankle pump drive component 30 during a single exercise, which is beneficial for monitoring the user's rehabilitation exercise situation. For example, the user can perform the ankle pump exercise 10 - 15 times a day, 20 - 30 sets each time. The frequency of the ankle pump exercise should be appropriate. If the frequency is too low, the corresponding effect cannot be achieved; if the frequency is too high, the patient is prone to non-compliance due to fatigue. The above rhythm is the optimal state of the ankle pump exercise.

[0037] The leg circumference monitoring component 40 can use an infrared ranging sensor to monitor and measure the muscle circumference information of the user's leg, and the pneumatic massage component 50 can perform pneumatic massage on the local muscles of the user's leg.

[0038] In some embodiments, the foot support assembly 20 includes a footrest 21 and a plurality of limiting bandages 22. One end of the footrest 21 is hinged to one end of the leg support assembly 10 close to the footrest 21. The plurality of limiting bandages 22 are arranged at intervals along the length direction of the footrest 21. The limiting bandages 22 are disposed on the footrest 21 and are used to limit and fix the user's feet on the footrest 21 so that the user's feet can move following the footrest 21. By providing the limiting bandages 22 on the footrest 21, the limiting bandages 22 can be used to surround and bind the user's feet, so that the user's feet can always move following the footrest 21. And the number of the limiting bandages 22 is set to be plural. The plurality of limiting bandages 22 cooperate together to perform multi-point limitation on the user's feet, providing a better sense of restraint on the feet and a better user experience for the user.

[0039] The limiting bandage 22 includes a hook surface 221 and a loop surface 222 of a Velcro, and the hook surface 221 and the loop surface 222 of the Velcro are bonded to bind the user's feet. Due to the differences among users, the thicknesses of feet are different. By adopting the Velcro for the limiting bandage 22, it can be applicable to users with different foot thicknesses. Before use, the hook surface and the loop surface of the Velcro are separated to open the footrest 21, facilitating the placement of the user's feet on the footrest 21, and then the hook surface and the loop surface of the Velcro are pasted and fixed to complete the limiting and fixing of the user's feet by using the Velcro, with convenient and fast operation.

[0040] Certainly, the foot support assembly 20 may further include a toe cover, which is disposed at the front end of the footrest 21 and can cover at least part of the user's toes.

[0041] A sponge layer may be provided on the inner side wall of the toe cover, and the sponge layer can play a certain buffering role for the user's toes, with a more comfortable touch and a better user experience for the user.

[0042] In some embodiments, the footrest 21 includes a body 211 and a footrest part 212. The body 211 is hinged to the leg support assembly 10, and the footrest part 212 is disposed on the body 211 for the user's feet to be placed thereon. Along the length direction of the footrest 21, the footrest part 212 includes a first fixing plate 2121 and a first movable plate 2122. The first fixing plate 2121 is fixedly disposed on the body 211, and the first movable plate 2122 is slidably disposed on the first fixing plate 2121 so that the length of the footrest part 212 is adjustable. Since the foot sizes of different users are different, by integrally setting the footrest 21 to be length-adjustable and using the first movable plate 2122 to move on the first fixing plate 2121 to adjust the length of the footrest 21, it can be adapted to different users, with a wider application range and being conducive to ensuring the user experience of the user.

[0043] A chute 2123 is formed by extending the bottom of the first fixed plate 2121, and a slider 2124 is formed at the bottom of the first movable plate 2122. The slider 2124 is slidably arranged on the chute 2123. A plurality of limiting grooves are formed in the chute 2123 along its length direction. A locking nut is in threaded cooperation with the slider 2124, and one end of the locking nut abuts against the limiting groove to lock the length of the foot pedal 21.

[0044] In some embodiments, the ankle pump driving assembly 30 includes two first electric push rods 31. The two first electric push rods 31 are respectively arranged on both sides in the width direction of the foot pedal 21. One end of the first electric push rod 31 is hinged to the foot pedal 21, and the other end of the first electric push rod 31 is hinged to the leg support assembly 10. By adopting the ankle pump driving assembly 30 in the form of the first electric push rod 31, the first electric push rod 31 realizes the rotational adjustment between the foot pedal 21 and the leg support assembly 10 through telescoping. The first electric push rod 31 is convenient to purchase, has a low cost, occupies a small volume, and is easy to implement. And the two first electric push rods 31 are respectively located on both sides of the foot pedal 21, and can cooperate together to realize the synchronous rotation of the left and right sides of the foot pedal 21, and the stability of the foot pedal 21 during the flipping process is higher.

[0045] In some embodiments, the leg support assembly 10 includes a support frame 11, an inner pad 12 and at least one snap-in part 13 that can be opened and closed. The support frame 11 is hinged to the foot support assembly. The inner pad 12 is a semi-circular arc structure made of a flexible material. Both sides of the inner pad 12 are respectively connected to both ends in the width direction of the support frame 11 and are arranged inside the support frame 11. The snap-in part 13 is arranged on the side of the support frame 11 facing away from the inner pad 12, and the snap-in part 13 is a magic tape with a semi-circular arc structure. By making the inner pad 12 of a flexible material and arranging the inner pad 12 inside the support frame 11, the inner pad 12 can play a role in supporting and limiting the inner side of the patient's leg, and the inner pad 12 is made of a flexible material, so that the user's leg is more comfortable after contact. By providing at least one snap-in part 13, the snap-in part 13 is a magic tape and can be opened or closed relative to the support frame 11. When the user's leg penetrates into the leg support assembly 10, the rough surface and the hook surface of the magic tape can be separated. After the user's leg is placed and abutted against the inner pad 12, the rough surface and the hook surface of the magic tape are pasted and fixed, and the operation is convenient and fast, which is beneficial for the user to more conveniently penetrate the leg into the leg support assembly 10.

[0046] In some embodiments, the pneumatic massage assembly 50 includes a support ring 51, an airbag 52, and a gas supply assembly 53. The gas supply assembly 53 is disposed on the support frame 11. The support ring 51 is connected to the support frame 11. The airbag 52 is of an annular structure and is disposed inside the support ring 51 and connected to the support ring 51. The gas supply assembly 53 is used to inflate or deflate the airbag 52. The support ring 51 serves as the installation base for the airbag 52. The airbag 52 is installed inside the support ring 51. The user's leg passes through the center of the airbag 52. When the leg passes through, the airbag 52 is in an uninflated state and has a larger diameter, which is conducive to the arrangement of the user's leg passing through. The air pressure parameters of the airbag 52 can be adjusted according to the monitoring data of the leg circumference monitoring assembly 40, the user's own situation, and the user's tolerance, so as to better realize the pneumatic massage of the user's leg.

[0047] Among them, when using the airbag 52 to perform pneumatic massage on the user's leg, the inflation time can be 45 - 60 seconds, the deflation time is 15 seconds, and it reciprocates multiple times to achieve the pneumatic massage of the user's leg.

[0048] The gas supply assembly 53 includes a micro air pump, a hose, and a valve. One end of the hose is connected to the micro air pump, and the other end is connected to the airbag 52. The valve is disposed on the hose to control the opening degree of the hose.

[0049] In addition, a plurality of protrusions can be provided on the inner side surface of the airbag 52. The plurality of protrusions are circumferentially spaced along the inner circumferential surface of the airbag 52. The protrusions can better stimulate the user's leg muscles, and the pneumatic massage effect is better.

[0050] The leg support assembly 10 includes a mounting substrate 76. The mounting substrate 76 is connected to the support frame 11. The mounting substrate 76 can be used for installing and setting the micro air pump and the control module 60.

[0051] In some embodiments, the support frame 11 includes two oppositely arranged guide rods 111, and two ends of the inner pad 12 are respectively connected to the two guide rods 111; a sliding sleeve is arranged on one side of the support ring 51 facing the guide rod 111, and the support ring 51 is slidably matched with the guide rod 111 through the sliding sleeve; the pneumatic massage assembly 50 further includes a first driving member 54, and the first driving member 54 is arranged on the support frame 11. The first driving member 54 is configured to drive the support ring 51 to drive the airbag 52 to slide along the length direction of the guide rod 111 so as to adjust the position of the support ring 51. Since the support frame 11 includes two guide rods 111 and the support ring 51 is slidably matched with the guide rod 111, under the action of the first driving member 54, the position of the airbag 52 on the support frame 11 can be adjusted. According to the specific situation of the user, the position of the airbag 52 can be adjusted. The airbag 52 can perform pneumatic massage on the corresponding area of the user, reducing the length of the airbag 52 in the length direction of the support frame 11, and also facilitating the better threading of the patient's leg through the hollow position of the airbag 52. During actual use, the control module 60 can control the first driving member 54 to drive in a time-sharing manner. For example, the length direction of the user's leg is divided into multiple different areas. After the airbag 52 completes the pneumatic massage on one area of the user's leg, the airbag 52 deflates and contracts, and the first driving member 54 drives the airbag 52 to continue to move to the next position, and then massages the next area of the user's leg, and so on, to achieve the pneumatic massage of all areas of the user's leg.

[0052] The first driving member 54 can be a lead screw-nut pair mechanism, a cylinder or an electric push rod, etc. Taking the first driving member 54 as a lead screw-nut pair mechanism as an example, the first driving member 54 includes a servo motor, a lead screw, a nut seat and a guiding portion. The lead screw is rotatably installed in the slot of the guide rod 111, and the servo motor is installed in the slot and drives the lead screw to rotate. The nut seat is in threaded cooperation with the lead screw, the nut seat is connected to the support ring 51, the guiding portion is arranged in the other guide rod 111, and the support ring 51 is in guiding cooperation with the guiding portion. Under the driving action of the servo motor, the support ring 51 and the airbag 52 can be driven to move along the length direction of the guide rod 111.

[0053] In some embodiments, the leg circumference monitoring component 40 includes a plurality of infrared monitoring sensors 41. The plurality of infrared monitoring sensors 41 are arranged inside the airbag 52 and are equally spaced along the circumference of the airbag 52. The infrared monitoring sensors 41 are electrically connected to the control module 60. The airbag 52 includes a first inner peripheral wall 521 and a second inner peripheral wall 522 that are oppositely arranged along its radial direction. The first inner peripheral wall 521 is located outside the second inner peripheral wall 522. The infrared monitoring sensors 41 are used to detect the distance between the first inner peripheral wall 521 and the second inner peripheral wall 522 of the airbag 52. The calculation module in the control module 60 is used to calculate the circumference of the second inner peripheral wall 522 of the airbag 52 according to the data measured by the plurality of infrared monitoring sensors 41. By arranging the plurality of infrared monitoring sensors 41 along the circumference of the airbag 52, during use, the user's leg is inserted into the airbag 52, and the air supply component 53 is used to inflate the deflated airbag 52. When the airbag 52 expands until the inner side of the second inner peripheral wall 522 just completely fits tightly against the leg, the inflation stops. The calculation module in the control module 60 reads the distances between the first inner peripheral wall 521 and the second inner peripheral wall 522 measured by the plurality of infrared monitoring sensors 41 (infrared distance sensors), and calculates the circumference of the second inner peripheral wall 522 according to the plurality of distances. The circumference of the second inner peripheral wall 522 is the muscle circumference of the user, that is, the leg circumference.

[0054] A pressure sensor may be arranged inside the airbag 52, and the pressure sensor can be used to monitor the air pressure inside the airbag 52. When measuring the leg circumference of the user, when the air pressure detected by the pressure sensor reaches the first air pressure threshold preset in the calculation module in the control module 60, it means that the second inner peripheral wall 522 of the airbag 52 just completely fits against the user's leg, and the calculation module directly controls the air supply component 53 to stop inflating. After completing the measurement of the user's leg circumference, the control module 60 acquires the data and analyzes it, calculates the air pressure range that needs to be set for the user's air pressure massage, and then the control module 60 automatically sends an instruction to the air supply component 53. The air supply component 53 inflates and deflates the airbag 52 to achieve air pressure massage for the user.

[0055] That is to say, the airbag 52 in the present application can not only function as an air pressure massage for the user's leg, but also be used as a medium for measuring the leg circumference of the user. By using the second inner peripheral wall 522 of the airbag 52 to contact the user's leg, the leg circumference of the user can be monitored through the infrared monitoring sensors 41.

[0056] Of course, the infrared monitoring sensor 41 includes an infrared emission device and an infrared reception device. The infrared monitoring sensor 41 calculates the distance from an obstacle by detecting the time difference between the infrared emission device emitting infrared rays and the infrared reception device receiving infrared rays. Therefore, the infrared reception device being able to smoothly receive the infrared rays reflected by the obstacle is a necessary condition for the normal operation of the infrared monitoring sensor 41.

[0057] In this embodiment, the color of the airbag 52 is preferably white. Compared with other colors, especially black, white has a strong reflection effect on light and hardly absorbs light. Selecting the color of the airbag 52 as white can enhance the degree of infrared reflection and ensure that the infrared receiving device of each infrared monitoring sensor 41 can receive the reflected infrared rays.

[0058] In some embodiments, a pressure sensor 71, a muscle tension sensor 73, and a multi-axis acceleration sensor 74 are provided on the footrest 21. The pressure sensor 71 is used to monitor the bearing force in real time, and the muscle tension sensor 73 is used to monitor the muscle tension information of the user's feet; at least one Doppler blood flow monitoring probe 72 is provided on the footrest 21, and the Doppler blood flow monitoring probe 72 is used to monitor the blood flow state of the user's feet in real time; the Doppler blood flow monitoring probe 72, the pressure sensor 71, the muscle tension sensor 73, and the multi-axis acceleration sensor 74 are all electrically connected to the control module 60. By providing the pressure sensor 71 on the footrest 21, the bearing force can be monitored in real time, and combined with the multi-axis acceleration sensor 74, the gait data of the user can be monitored. The Doppler blood flow monitoring probe 72 is used to monitor the blood flow state of the user's feet in real time, and the collected data is transmitted to the supporting mobile device or the cloud through Bluetooth or Wi-Fi. The control module 60 can analyze data such as the bearing force and the force application area of the user in combination with the AI algorithm to assist the therapist in formulating a phased rehabilitation plan.

[0059] When analyzing the lower limb function of the user, the following aspects can be considered. Plantar pressure distribution: The range of force application on the sole of the foot and the gravity measurement can intuitively reflect the physiological, structural, and functional information of the lower limb and even the whole body. Gait cycle parameters: Through measurement, dynamic parameters such as step length, step width, step frequency, and walking speed can be obtained to evaluate walking stability and gait characteristics. Intervention effect evaluation: Measure the gait parameters and plantar pressure distribution before and after the intervention to judge whether the intervention effect is good. Correction plan formulation: According to the measurement data, provide data support for scientific and accurate mechanical correction to guide foot correction and rehabilitation.

[0060] In some embodiments, a plurality of electrode patches 70 are further provided on the inner pad 12 of the support frame 11. The plurality of electrode patches 70 are spaced along the circumferential and / or longitudinal direction of the inner pad 12, and the electrode patches 70 are used to contact the user's legs; the lower limb assistive rehabilitation brace for stroke patients further includes a control screen 75, and a plurality of control buttons are provided on the control screen 75. By providing the electrode patches 70 on the inner pad 12, the electrode patches 70 use low-frequency current stimulation to promote the recovery of the user's muscle strength, make the user's leg muscles tense and the calf bend, and promote the recovery of the user's lower limb muscle strength, so as to achieve the purpose of improving the rehabilitation effect. The control screen 75 can achieve human-computer interaction, which is beneficial for the user or the caregiver to better control the device and has a better user experience.

[0061] The control panel 75 can be arranged on the mounting substrate 76. Multiple control buttons on the control panel 75 can correspond to functions such as controlling the opening and closing of the ankle pump driving assembly 30, the pneumatic massage assembly 50, the first driving member 54, and the electrode pads 70. The specific settings of the control panel 75 can be determined according to the actual situation. Through the supporting control panel 75, different functional modes of the brace can be selected, such as the fixation mode of the user's foot, the massage mode (such as starting the pneumatic assembly), the ankle pump exercise mode (such as starting the ankle pump driving assembly 30), etc. The selection is more flexible and can be determined according to requirements.

[0062] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A novel lower limb assistive rehabilitation brace for stroke patients, characterized in that, Comprising: A leg support component for the user's legs to pass through and be positioned; A foot support component, one end of the foot support component is hinged to the leg support component, and the foot support component is used to support the user's feet; An ankle pump drive component disposed on the leg support component, and the ankle pump drive component is used to drive the foot support component to rotate relative to the leg support component; A leg circumference monitoring component disposed on the leg support component, and the leg circumference monitoring component is used to monitor the muscle circumference information of the user's legs; A pneumatic massage component disposed on the leg support component, and the pneumatic massage component is used to perform pneumatic massage on the user's legs; A control module, the ankle pump drive component, the pneumatic massage component and the leg circumference monitoring component are all electrically connected to the control module, and the control module is used to control and adjust the pneumatic massage component according to the muscle circumference information monitored by the leg circumference monitoring component.

2. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 1, wherein, The foot support component includes a footrest and a plurality of limiting bandages. One end of the footrest is hinged to one end of the leg support component close to the footrest. The plurality of limiting bandages are arranged at intervals along the length direction of the footrest. The limiting bandages are arranged on the footrest, and the limiting bandages are used to limit and fix the user's feet on the footrest so that the user's feet can move with the footrest.

3. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 2, characterized in that, The footrest includes a body and a footrest part. The body is hinged to the leg support component, and the footrest part is arranged on the body for the user's feet to be placed; Along the length direction of the footrest, the footrest part includes a first fixing plate and a first movable plate. The first fixing plate is fixedly arranged on the body, and the first movable plate is slidably arranged on the first fixing plate so that the length of the footrest part is adjustable.

4. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 2, wherein The ankle pump drive component includes two first electric push rods. The two first electric push rods are respectively arranged on both sides in the width direction of the footrest. One end of the first electric push rod is hinged to the footrest, and the other end of the first electric push rod is hinged to the leg support component.

5. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 1, wherein, The leg support component includes a support frame, an inner pad and at least one openable and closable fastening part. The support frame is hinged to the foot support component. The inner pad is a semi-circular arc structure made of a flexible material. Both sides of the inner pad are respectively connected to both ends in the width direction of the support frame and are arranged inside the support frame; the fastening part is arranged on the side of the support frame facing away from the inner pad, and the fastening part is a magic tape with a semi-circular arc structure.

6. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 5, characterized in that, The pneumatic massage component includes a support ring, an airbag and a gas supply component. The gas supply component is arranged on the support frame. The support ring is connected to the support frame. The airbag is a ring structure. The airbag is arranged inside the support ring and is connected to the support ring; the gas supply component is used to inflate or deflate the airbag.

7. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 6, wherein, The support frame includes two oppositely arranged guide rods, and both ends of the inner pad are respectively connected to the two guide rods; The pneumatic massage component further includes a first driving member, which is arranged on the support frame. The first driving member is used to drive the support ring to drive the airbag to slide along the length direction of the guide rod, so as to adjust the position of the support ring.

8. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 6, wherein, The thigh circumference monitoring component includes a plurality of infrared monitoring sensors. The plurality of infrared monitoring sensors are arranged in the airbag and are evenly spaced along the circumference of the airbag. The infrared monitoring sensors are electrically connected to the control module; The airbag includes a first inner peripheral wall and a second inner peripheral wall that are oppositely arranged along its radial direction. The first inner peripheral wall is located outside the second inner peripheral wall; the infrared monitoring sensor is used to detect the distance between the first inner peripheral wall and the second inner peripheral wall of the annular airbag; the calculation module in the control module is used to calculate the circumference of the second inner peripheral wall of the airbag according to the data measured by the plurality of infrared monitoring sensors.

9. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 2, characterized in that, The footrest is provided with a pressure sensor, a muscle tension sensor and a multi-axis acceleration sensor. The pressure sensor is used to monitor the bearing force in real time, and the muscle tension sensor is used to monitor the muscle tension information of the user's foot; At least one Doppler blood flow monitoring probe is arranged on the footrest. The Doppler blood flow monitoring probe is used to monitor the blood flow state of the user's foot in real time; The Doppler blood flow monitoring probe, the pressure sensor, the muscle tension sensor and the multi-axis acceleration sensor are all electrically connected to the control module.

10. The novel lower limb assisted rehabilitation brace for stroke patients according to claim 5, wherein, A plurality of electrode pads are further arranged on the inner pad. The plurality of electrode pads are spaced at intervals along the circumference and / or the length direction of the inner pad. The electrode pads are used to contact the user's leg; the lower limb assisted rehabilitation brace for stroke patients further includes a control screen, and a plurality of control buttons are arranged on the control screen.

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