Ankle spasm drafting brace based on pressure feeling

Abstract

The invention discloses an ankle spasm drafting brace based on pressure feeling, which comprises a shank wrapping plate, and the shank wrapping plate is of a semi-surrounded structure; a foot bottom plate for wrapping a foot is arranged below the shank wrapping plate; fixing arms extending downwards are arranged on the two sides of the lower end of the shank wrapping plate, and angle scale marks for measuring the rotation angle of the shank wrapping plate relative to the foot bottom plate are arranged on the rotating disc; the turntable is mounted on the supporting shaft through a bearing; the supporting shaft is vertically mounted on the side surface of the foot bottom plate; the limiting nut is in threaded connection with the end part of the supporting shaft; a plurality of pressure sensors are arranged at the bottom of the foot bottom plate. According to different patients, different rehabilitation stages and different muscular tension degrees and spasm degrees of patients suffering from ankle spasm, a proper joint fixing angle can be selected, and the patients are assisted in ankle-foot joint passive movement within an individual safety angle. According to the scheme, medical staff or accompanying personnel can be effectively helped to monitor the muscular tension condition of a patient in real time according to the pressure detection data of the planta pedis.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation equipment, and in particular to an ankle joint spasticity stretching brace based on pressure perception. Background Art

[0002] Excessive muscle tension in patients can cause ankle spasms, which manifests as abnormal angles and limited movement when the ankle is relaxed. In order to prevent further spasms and deformation of the patient's ankle joint, affecting recovery and joint function, an ankle brace is generally required to fix the joint. In clinical practice, medical staff are required to stretch the patient's ankle joint according to the patient's condition and personal experience, and then use the brace to fix it in the corresponding position. Traditional ankle spasticity braces lack accurate data indicator measurements, which affects precise treatment and individualized rehabilitation. As the stretching time increases, the patient's muscle tension generally decreases and the degree of spasm decreases, but traditional fixed braces cannot monitor this change in time and make real-time adjustments. Patients with severe spasticity are often accompanied by impaired walking function and need to stay in bed for a long time, which leads to problems such as pressure sores and muscle atrophy.

[0003] Traditional ankle spasticity braces are often fixed at an angle selected by the medical staff based on their experience. This type of brace cannot accurately and individually fix the angle according to the patient's plantar pressure. Traditional braces lack accurate visual data to evaluate whether the angle of the joint brace is suitable for the patient. Traditional braces cannot monitor and adjust in real time according to the degree of spasticity, do not have a timing function, and cannot set a time for stretching and relaxation. Traditional braces also do not have the ability to prevent and relieve pressure sores, muscle atrophy, lower extremity venous thrombosis, etc. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an ankle spasticity stretching brace based on pressure perception, which can select a suitable joint fixation angle according to the actual ankle spasticity condition of the patient.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] Provided is a pressure-sensing-based ankle spasticity stretching brace, which includes a calf wrapping plate, which is a semi-enclosed structure, and whose two ends are connected with a first elastic strap by buckles; a plantar plate for wrapping the foot is arranged below the calf wrapping plate; downwardly extending fixed arms are arranged on both sides of the lower end of the calf wrapping plate, and a turntable is arranged on the fixed arm, and an angle scale line for measuring the rotation angle of the calf wrapping plate relative to the plantar plate is arranged on the turntable; the turntable is mounted on a support shaft through a bearing, and the support shaft is vertically mounted on the side of the plantar plate; an indicator disk is arranged on the support shaft at the outer side of the turntable, and a pointer indicating the angle scale line is arranged on the indicator disk, and an anti-rotation mechanism is arranged between the support shaft and the indicator disk; a limit nut is arranged outside the indicator disk, and the limit nut is threadedly connected to the end of the support shaft;

[0007] A plurality of pressure sensors are arranged at the bottom of the sole plate, a control box is arranged at the side of the calf wrapping plate, a display screen and control buttons are arranged on the control box, and the plurality of pressure sensors are electrically connected to the control box.

[0008] Furthermore, the anti-rotation mechanism includes a limiting ridge arranged on the inner ring of the indicator disk, a limiting strip groove is provided on the support shaft, the limiting ridge is arranged in the limiting strip groove, and the length direction of the limiting strip groove is parallel to the axial direction of the support shaft.

[0009] Furthermore, it also includes a limiting mechanism arranged on the side of the sole plate, and the limiting mechanism is used to fix and limit the relative rotation position of the calf wrapping plate and the sole plate;

[0010] The limiting mechanism includes a limiting ring arranged on the outer circumference of the rotating disk, and an actuator for clamping and releasing the limiting ring is arranged below the rotating disk;

[0011] The actuator includes a vertical support plate, the side of the support plate is fixed to the side of the sole plate through a support rod, the support plate is respectively provided with a first turntable and a second turntable, the first turntable and the second turntable are rotatably arranged at the upper end of the support plate, the first turntable and the second turntable are respectively provided with a first clamping block and a second clamping block, the first clamping block and the second clamping block are respectively located on the inner side and the outer side of the limiting ring in a clamping shape, when the calf wrapping plate and the sole plate rotate relative to each other, the first clamping block and the second clamping block are in a parallel state, and the first clamping block and the second clamping block release the limiting ring;

[0012] The first rotating disk and the second rotating disk are respectively provided with a first support rod and a second support rod for driving rotation, the end of the first support rod is hinged with a first driving rod, the end of the second support rod is hinged with a second driving rod, and an angle is formed between the second driving rod and the first driving rod;

[0013] A third rotating disk is rotatably arranged on the support plate, and third supporting rods are respectively arranged on both sides of the third rotating disk, and the other ends of the second driving rod and the first driving rod are respectively hinged on the third supporting rods on both sides; a rotating shaft is arranged on the inner ring of the third rotating disk, and the rotating shaft passes through the support plate and is connected to the driving rotating disk, and a crank is arranged on the driving rotating disk;

[0014] The support plates on both sides of the crank are respectively provided with a first limiting mechanism for keeping the crank at a position of clamping the limiting ring and a second limiting mechanism for keeping the crank at a position of releasing the limiting ring.

[0015] Furthermore, the first limiting mechanism and the second limiting mechanism both include a first magnet arranged on the support plates on both sides of the crank, and a second magnet is arranged on both sides of the crank through a connecting rod, and the second magnet and the first magnet limit the crank through magnetic adsorption.

[0016] Furthermore, an angle sensor is provided between the support shaft and the sole plate, and the angle sensor is electrically connected to the control box.

[0017] Furthermore, air bags worn on the foot and calf are arranged in the sole plate and the calf wrapping plate, and the air bags are connected to the inflation device. The air pressure in the air bags is controlled by setting the intensity of the air pressure in the inflation device.

[0018] Furthermore, a telescopic adjustment rod is arranged between the lower end of the calf wrapping plate and the upper end of the sole plate, a charging socket is arranged at the bottom of the sole plate, and both the telescopic adjustment rod and the charging socket are electrically connected to the control box.

[0019] Furthermore, buckles are provided on both sides of the upper end of the sole plate to cooperate with the second elastic strap, and both ends of the second elastic strap and the first elastic strap are connected and fixed by Velcro.

[0020] Furthermore, a spiral anti-skid ridge is provided at the bottom of the sole plate.

[0021] The beneficial effects of the present invention are as follows: the present invention can select a suitable joint fixation angle according to different patients and different rehabilitation stages, and according to the different muscle tension and spasm degrees of patients with ankle spasticity. This solution can effectively help medical staff or accompanying personnel to monitor the patient's muscle tension in real time based on the pressure detection data of the sole of the foot. The pressure data detected by the sole pressure sensor improves the scientificity, detectability and recordability of the brace, helps patients gradually restore the ankle joint to a normal angle, helps clinical workers to set the joint fixation angle more scientifically, and helps to observe the degree of recovery intuitively and accurately. At the same time, an air bag is configured, which can be inflated and pressurized, and deflated and relaxed to prevent problems such as lower limb pressure sores and muscle atrophy.

[0022] The operator can use the brace to measure the range of motion angles of the patient's ankle and foot joints, and input the range of motion angles into the control box. The brace drives and controls the movement of the foot brace through a mechanical structure, so that it can drive the ankle and foot joints to stretch within the set range.

[0023] The present invention can achieve unlocking and locking states by shaking the handle to the left and right sides. The angle of the ankle joint is fixed in the locked state, and the angle of the ankle joint can be adjusted arbitrarily in the unlocked state. The magnetic structure designed on both sides of the handle of this solution can temporarily control the unlocking and locking states. When adjustment is required, only the arm needs to apply a suction force greater than the magnetic force. The operation is convenient and simple, and the unlocking and locking states can be switched arbitrarily.

[0024] The present invention adds a plantar pressure monitoring function, which can better perform accurate individualized adjustment according to plantar pressure than traditional ankle spasticity braces. The control box can realize the timer function and set the stretching and rest time, so that patients can use the brace more conveniently and scientifically. The angle of ankle joint adjustment can be monitored, and medical staff or patients' families can help patients to select and fix the angle adjustment intuitively and conveniently under the prompt of the pressure value. And the recovery status can be observed according to the changes in angle and plantar pressure. The overall function of the brace is diversified, visualized and professional. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a diagram of the structure of the ankle spasticity stretch brace based on pressure perception.

[0026] Figure 2 This is the structural diagram of the limiting mechanism.

[0027] Figure 3 This is a structural diagram of the crank.

[0028] Figure 4 This is the structural diagram of the anti-rotation mechanism.

[0029] Among them, 1. calf wrapping plate, 2. sole plate, 3. charging socket, 4. spiral anti-skid ridge, 5. turntable, 6. second elastic strap, 7. telescopic adjustment rod, 8. fixed arm, 9. control box, 10. first elastic strap, 11. airbag, 12. limit nut, 13. indicator plate, 14. limit strip groove, 15. limit ridge, 16. angle sensor, 17. limit ring, 18. support shaft, 19. pointer, 20. support plate, 21. crank, 22. first support rod, 23. second turntable, 24. third turntable, 25. second drive rod, 26. first drive rod, 27. first clamping block, 28. second clamping block, 29. drive turntable, 30. first magnet, 31. second magnet, 32. connecting rod, 33. pressure sensor. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0031] like Figure 1-Figure 4 As shown, the ankle spasticity stretching brace based on pressure perception of the present scheme includes a calf wrapping plate 1, which is a semi-enclosed structure, and the two ends of the calf wrapping plate 1 are connected with the first elastic strap 10 by buckles; a plantar plate 2 for wrapping the foot is arranged below the calf wrapping plate 1; downwardly extending fixed arms 8 are arranged on both sides of the lower end of the calf wrapping plate 1, and a turntable 5 is arranged on the fixed arm 8, and an angle scale line is arranged on the turntable 5 to measure the rotation angle of the calf wrapping plate 1 relative to the plantar plate 2; the turntable 5 is installed on the support shaft 18 through a bearing, and the support shaft 18 is vertically installed on the side of the plantar plate 2; an indicator disk 13 is arranged on the support shaft 18 on the outside of the turntable 5, and a pointer 19 indicating the angle scale line is arranged on the indicator disk 13, and an anti-rotation mechanism is arranged between the support shaft 18 and the indicator disk 13; a limiting nut 12 is arranged on the outside of the indicating disk 13, and the limiting nut 12 is threadedly connected to the end of the support shaft 18.

[0032] A plurality of pressure sensors 33 are arranged at the bottom of the sole plate 2, a control box 9 is arranged on the side of the calf wrapping plate 1, a display screen and control buttons are arranged on the control box 9, and the plurality of pressure sensors 33 are electrically connected to the control box 9.

[0033] In this embodiment, the anti-rotation mechanism includes a limiting ridge 15 arranged on the inner ring of the indicator disk 13, a limiting strip groove 14 is opened on the support shaft 18, the limiting ridge 15 is arranged in the limiting strip groove 14, and the length direction of the limiting strip groove 14 is parallel to the axial direction of the support shaft 18.

[0034] It also includes a limiting mechanism arranged on the side of the sole plate 2, which is used to fix the relative rotation position of the calf wrapping plate 1 and the sole plate 2; the limiting mechanism includes a limiting ring 17 arranged on the outer circumference of the turntable 5, and an actuator 17 is arranged below the turntable 5 to perform the clamping and releasing functions of the limiting ring 17.

[0035] The actuator includes a vertical support plate 20, the side of the support plate 20 is fixed to the side of the plantar plate 2 by a support rod, and the support plate 20 is respectively provided with a first turntable 5 and a second turntable 23, the first turntable 5 and the second turntable 23 are rotatably arranged at the upper end of the support plate 20, and the first turntable 5 and the second turntable 23 are respectively provided with a first clamping block 27 and a second clamping block 28, the first clamping block 27 and the second clamping block 28 are respectively located on the inner and outer sides of the limit ring 17 in a clamping shape, when the calf wrapping plate 1 and the plantar plate 2 rotate relative to each other, the first clamping block 27 and the second clamping block 28 are in a parallel state, and the first clamping block 27 and the second clamping block 28 release the limit ring 17.

[0036] The first rotating disk 5 and the second rotating disk 23 are respectively provided with a first support rod 22 and a second support rod for driving rotation. The end of the first support rod 22 is hinged with a first driving rod 26, and the end of the second support rod is hinged with a second driving rod 25. An angle is formed between the second driving rod 25 and the first driving rod 26.

[0037] A third turntable 24 is rotatably provided on the support plate 20, and third support rods are respectively provided on both sides of the third turntable 24, and the other ends of the second drive rod 25 and the first drive rod 26 are respectively hinged on the third support rods on both sides; a rotating shaft is provided on the inner ring of the third turntable 24, and the rotating shaft passes through the support plate 20 and is connected to the driving turntable 29, and a crank 21 is provided on the driving turntable 29.

[0038] The support plates 20 on both sides of the crank handle 21 are respectively provided with a first limiting mechanism for keeping the crank handle 21 at a position of clamping the limiting ring 17 and a second limiting mechanism for keeping the crank handle 21 at a position of releasing the limiting ring 17 .

[0039] In this embodiment, the first limiting mechanism and the second limiting mechanism both include a first magnet 30 arranged on the support plates 20 on both sides of the crank 21, and a second magnet 31 is arranged on both sides of the crank 21 through a connecting rod 32. The second magnet 31 and the first magnet 30 limit the crank 21 through magnetic adsorption.

[0040] The present invention can achieve unlocking and locking states by shaking the handle 21 to the left and right sides. The angle of the ankle joint is fixed in the locked state, and the angle of the ankle joint can be adjusted arbitrarily in the unlocked state. The magnetic structures designed on both sides of the handle 21 of this solution can temporarily control the unlocking and locking states. When adjustment is required, only the arm needs to apply a suction force greater than the magnetic force. The operation is convenient and simple, and the unlocking and locking states can be switched arbitrarily.

[0041] In this embodiment, an angle sensor 16 is arranged between the support shaft 18 and the sole plate 2, and the angle sensor 16 is electrically connected to the control box 9; an air bag 11 worn on the foot and calf is arranged in the sole plate 2 and the calf wrapping plate 1, and the air bag 11 is connected to the inflation device. By setting the intensity of the air pressure in the air bag in the inflation device, the air pressure in the air bag is controlled, which makes it convenient to set the inflation pressure intensity of the air bag according to different medical conditions. The air bag pressure can be selected to be 150 or 180 mmHg.

[0042] A telescopic adjustment rod 7 is arranged between the lower end of the calf wrapping plate 1 and the upper end of the sole plate 2, and a charging socket 3 is arranged at the bottom of the sole plate 2. The telescopic adjustment rod 7 and the charging socket 3 are both electrically connected to the control box 9. A battery is arranged in the control box 9, and the entire brace is powered by the charging socket 3.

[0043] Buckles are provided on both sides of the upper end of the sole plate 2 to cooperate with the second elastic band 6, and both ends of the second elastic band 6 and the first elastic band 10 are connected and fixed by Velcro, which is convenient for wearing the entire brace. A spiral anti-slip ridge 4 is provided at the bottom of the sole plate 2.

[0044] The present invention can select a suitable joint fixation angle according to different patients and different rehabilitation stages, and according to the different muscle tension and spasm degrees of patients with ankle joint spasm. This solution can effectively help medical staff or accompanying personnel to monitor the patient's muscle tension in real time according to the pressure detection data of the sole of the foot. The pressure data detected by the sole pressure sensor 33 improves the scientificity, detectability and recordability of the brace, helps patients to gradually restore the ankle joint to a normal angle, helps clinical workers to set the joint fixation angle more scientifically, and helps to observe the degree of recovery intuitively and accurately. At the same time, the airbag 11 is configured, and the airbag 11 can be inflated and pressurized, and deflated and relaxed to prevent the occurrence of problems such as lower limb pressure sores and muscle atrophy.

[0045] The present invention adds a plantar pressure monitoring function, which can better perform accurate individualized adjustment according to plantar pressure than traditional ankle spasticity braces. The control box 9 can realize the timer function and set the stretching and rest time, so that patients can use the brace more conveniently and scientifically. The angle of ankle joint adjustment can be monitored, and medical staff or patients' families can help patients to select and fix the angle adjustment intuitively and conveniently under the prompt of the pressure value. And the recovery situation can be observed according to the changes in angle and plantar pressure. The overall function of the brace is diversified, visualized and professional.

[0046] The operator can use the brace to measure the range of motion angles of the patient's ankle and foot joints, and input the range of motion angles into the control box. The brace drives and controls the movement of the foot brace through a mechanical structure, so that it can drive the ankle and foot joints to stretch within the set range.

Claims

1. A pressure-sensitive ankle spasticity stretching brace, characterized in that: It includes a calf wrapping plate, which is a semi-enclosed structure, and the two ends of the calf wrapping plate are connected with the first elastic strap by buckles; a plantar plate for wrapping the foot is arranged below the calf wrapping plate; downwardly extending fixed arms are arranged on both sides of the lower end of the calf wrapping plate, and a turntable is arranged on the fixed arm, and an angle scale line for measuring the rotation angle of the calf wrapping plate relative to the plantar plate is arranged on the turntable; the turntable is mounted on a support shaft through a bearing, and the support shaft is vertically mounted on the side of the plantar plate; an indicator disk is arranged on the support shaft at the outer side of the turntable, and a pointer indicating the angle scale line is arranged on the indicator disk, and an anti-rotation mechanism is arranged between the support shaft and the indicator disk; a limiting nut is arranged on the outside of the indicator disk, and the limiting nut is threadedly connected to the end of the support shaft; A plurality of pressure sensors are arranged at the bottom of the plantar plate, a control box is arranged on the side of the calf wrapping plate, a display screen and control buttons are arranged on the control box, and a plurality of the pressure sensors are electrically connected to the control box.

2. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: The anti-rotation mechanism includes a limiting ridge arranged on the inner ring of the indicator disk, a limiting strip groove is provided on the support shaft, the limiting ridge is arranged in the limiting strip groove, and the length direction of the limiting strip groove is parallel to the axial direction of the support shaft.

3. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: It also includes a limiting mechanism arranged on the side of the sole plate, and the limiting mechanism is used to fix and limit the relative rotation position between the calf wrapping plate and the sole plate; The limiting mechanism comprises a limiting ring arranged on the outer circumference of the rotating disk, and an actuator for clamping and releasing the limiting ring is arranged below the rotating disk; The actuator includes a vertical support plate, the side of the support plate is fixed to the side of the sole plate through a support rod, the support plate is respectively provided with a first turntable and a second turntable, the first turntable and the second turntable are rotatably arranged at the upper end of the support plate, the first turntable and the second turntable are respectively provided with a first clamping block and a second clamping block, the first clamping block and the second clamping block are respectively located on the inner side and the outer side of the limiting ring and are distributed in a clamping shape, when the calf wrapping plate and the sole plate rotate relative to each other, the first clamping block and the second clamping block are in a parallel state, and the first clamping block and the second clamping block release the limiting ring; The first rotating disk and the second rotating disk are respectively provided with a first support rod and a second support rod for driving rotation, the end of the first support rod is hinged with a first driving rod, the end of the second support rod is hinged with a second driving rod, and an angle is formed between the second driving rod and the first driving rod; A third rotating disk is rotatably arranged on the support plate, third supporting rods are respectively arranged on both sides of the third rotating disk, and the other ends of the second driving rod and the first driving rod are respectively hinged on the third supporting rods on both sides; a rotating shaft is arranged on the inner ring of the third rotating disk, and the rotating shaft passes through the support plate and is connected to the driving rotating disk, and a crank is arranged on the driving rotating disk; The support plates on both sides of the crank are respectively provided with a first limiting mechanism for keeping the crank at a position of clamping the limiting ring and a second limiting mechanism for keeping the crank at a position of releasing the limiting ring.

4. The ankle spasticity stretching brace based on pressure perception according to claim 3, characterized in that: The first limiting mechanism and the second limiting mechanism both include a first magnet disposed on support plates at both sides of the crank, and second magnets are disposed on both sides of the crank through connecting rods, and the second magnet and the first magnet limit the crank through magnetic adsorption.

5. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: An angle sensor is arranged between the support shaft and the sole plate, and the angle sensor is electrically connected to the control box.

6. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: The sole plate and the calf wrapping plate are provided with air bags worn on the foot and calf, and the air bags are connected to the inflation device. The air pressure in the air bags is controlled by setting the intensity of the air pressure in the inflation device.

7. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: A telescopic adjustment rod is arranged between the lower end of the calf wrapping plate and the upper end of the sole plate, a charging socket is arranged at the bottom of the sole plate, and both the telescopic adjustment rod and the charging socket are electrically connected to the control box.

8. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: Buckles are arranged on both sides of the upper end of the sole plate to cooperate with the second elastic strap, and both ends of the second elastic strap and the first elastic strap are connected and fixed by Velcro.

9. The ankle spasticity stretching brace based on pressure perception according to claim 1, characterized in that: The bottom of the sole plate is provided with spiral anti-skid ridges.

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