Ankle joint stability training device

Abstract

The invention provides an ankle joint stability training device which comprises a base and an ankle joint stability training unit. One ankle joint stability training unit is correspondingly mounted in one sole supporting area; each ankle joint stability training unit comprises a talus pressure component, a tension component and a swing rod; by adjusting the compression degree of the solenoid spring, the pressure on the talus and the tensile force on the ankle joint can be set at expected values, and the pressure and the tensile force are kept stable in the whole training process, so that a subject can conveniently and autonomously train, and the training consistency is kept.

Description

TECHNICAL FIELD

[0001] The present application relates to a medical device, in particular to an ankle stability training device. BACKGROUND

[0002] In ankle stability training, one training method is to apply a certain force to the ankle joint, and at the same time, the ankle joint is in active flexion and extension movement.

[0003] Taking the right ankle as an example, the subject stands in an upright position, and the right foot is placed on a small stool about 20 cm high. The practitioner's left hand is fixed on the talus in front of the patient's right ankle, and the right hand is placed behind the right ankle to apply force forward. At the same time, the subject performs active flexion and extension movement of the right ankle joint, 3 times per group, and a total of 3 groups.

[0004] In this way of ankle stability training, the practitioner's left hand fixes the talus, and the right hand is placed behind the right ankle to apply force forward, which can generate tension inside the ankle joint. In addition, the influence of gravity increases the stimulation of the proprioceptors of the ankle joint. In this state, the flexion and extension movement of the ankle joint can activate the central nervous system through effective motor stimulation and strengthen the stability of the ankle joint.

[0005] However, this training method requires the cooperation of the practitioner, and in addition, the practitioner needs to ensure the stability of the applied force as much as possible during the training process, which is also difficult for the practitioner. The practitioner can only control the size of the applied force through subjective feeling during the training process, and subjective feeling is easily affected by emotions, fatigue, etc., and is not easy to maintain stability. SUMMARY

[0006] In view of the above problems, the present application aims to provide an ankle stability training device which can replace the practitioner, so that the subject can complete the training independently without the assistance of others, and can ensure that the pressure on the talus and the forward tension on the ankle joint remain stable during the training process.

[0007] The ankle stability training device of the present application comprises a base and an ankle stability training unit. The base is formed in a plate shape and is used to be placed horizontally on the ground. At least one foot support area is formed on the base for supporting the corresponding foot sole of the ankle to be trained. For each foot support area, a circular tube is arranged in front of the foot support area, and a lug is arranged on the side. The lower end of the circular tube is fixed to the upper surface of the base, and the upper part of the circular tube is formed into a first threaded hole. The lower end of the first threaded bolt is installed in the first threaded hole, and the head end of the first threaded bolt is located above the circular tube. The lower part of the lug is fixed to the upper surface of the base, and the middle part of the lug is formed with a first through hole. A rotating shaft is rotatably installed in the first through hole. A foot bottom support area is correspondingly provided with an ankle stability training unit; Each ankle stability training unit comprises a talus pressure member, a tension member, and a swing lever. The talus pressure member comprises a downwardly curved pressure plate body, a front end of the pressure plate body is formed with a sleeve, a rear end of the pressure plate body is formed with a talus pressure plate, an underside of the talus pressure plate is formed with a curved surface corresponding to the physiological curve of the instep of a human body, the talus pressure plate is used to press on the upper side of the talus of the ankle to be trained; the sleeve is slidably sleeved on the round tube; the sleeve and the first bolt are provided with a first solenoid spring, the first solenoid spring surrounds the round tube and the first bolt, is arranged between the head end of the first bolt and the sleeve, and the pressure of the first solenoid spring on the bone pressure member is adjusted by adjusting the depth of the first bolt inserted into the first threaded hole, and thus the pressure of the talus pressure member on the corresponding talus of the subject is adjusted; The swing lever comprises a main body segment, the main body segment extends along the front-rear direction, a front end of the main body segment is integrally formed with a first connecting rod, the first connecting rod extends along the left-right direction, and the first connecting rod is formed with a second through-hole; a rear end of the main body segment is integrally formed with a second connecting rod, the second connecting rod extends along the up-down direction; a lower end of the second connecting rod is formed with a third through-hole, and the second connecting rod is fixedly installed on the rotating shaft through the third through-hole; an upper portion of the second connecting rod is formed with a clamping block installation slot, the clamping block installation slot is formed in the front-rear direction and is located on the side close to the subject and used for accommodating a clamping block; the clamping block comprises a first clamping block and a second clamping block, the first clamping block is arranged in front of the second clamping block, the first clamping block and the second clamping block are respectively formed with recessed portions, and the recessed portions of the first clamping block and the second clamping block together constitute a calf accommodating hole; the first clamping block abuts against the front side of the calf of the subject, and the second clamping block abuts against the rear side of the calf of the subject; an upper end of the second connecting rod is formed with two second threaded holes, the two second threaded holes are formed along the up-down direction and communicate with the clamping block installation slot; one second bolt is respectively installed in the two second threaded holes, a lower end of the second bolt abuts against the corresponding first clamping block or second clamping block, and thus the corresponding first clamping block or second clamping block is fixed in the clamping block installation slot; The tension member comprises a tension main body, the tension main body comprises a first tension member extending in the front-rear direction and a second tension member extending in the left-right direction; a U-shaped belt is mounted on the second tension member, the belt extends in the front-rear direction, the inner side of the bending part of the belt is used to act on the ankle joint, and the two ends of the belt are fixed on the second tension member; the first tension member is located on the front side of the second tension member, and the second end of the first tension member is integrally combined in the middle part of the second tension member; a third threaded hole is formed along the length direction of the first tension member starting from the front end of the first tension member; a third bolt is mounted in the third threaded hole; the third bolt is mounted in the third threaded hole after passing through the second circular hole, the diameter of the second circular hole is larger than the diameter of the screw part of the third bolt; a second solenoid spring is arranged around the third bolt, and the second solenoid spring is arranged between the head end of the third bolt and the first connecting rod, so that the second solenoid spring is pushed by the support of the first connecting rod to push the third bolt, thereby pulling the tension main body and the belt to apply forward tension to the rear side of the ankle joint. A support pad with a proper thickness is arranged on the foot bottom support area, so that the ankle joints of the subject and the rotating shafts installed in the first circular holes of the ankle joint stability training units corresponding to the foot bottom support area are opposite to each other. When the subject performs the active flexion and extension movement of the ankle joint, the lower leg of the subject swings forward and backward with the ankle joint as the axis, and the swinging lower leg drives the swinging rod to swing around the rotating shaft through the clamping block, so that the tension member swings with the swinging of the lower leg during the flexion and extension of the ankle joint.

[0008] Preferably, the foot bottom support area is formed as a downward recess for accommodating the support pad with a thickness.

[0009] Preferably, a pressure detection device is arranged on the support pad to detect the stepping force of the foot bottom corresponding to the ankle joint.

[0010] Preferably, an upright rod extending upward is arranged in the middle part of the base, and a horizontal rod with adjustable height is arranged on the upper part of the upright rod, which is used for the subject to hold to keep the body during the training.

[0011] Preferably, the base is divided into a left training area, a middle area and a right training area; the left training area is used for training the left ankle joint, and the right training area is used for training the right ankle joint; and the middle area is used for placing the foot bottom corresponding to the ankle joint which does not perform the training.

[0012] Preferably, the foot bottom support area comprises two foot bottom support areas, which are a left foot bottom support area and a right foot bottom support area. For the left foot bottom support area, the corresponding lug is located on the left side thereof; and for the right foot bottom support area, the corresponding lug is located on the right side thereof.

[0013] Preferably, the angle between the main body of the swing rod and the second connecting rod in each ankle stability training unit is 70-90 degrees.

[0014] The ankle stability training device of the present application can replace the operator in training, and by adjusting the compression degree of the solenoid spring, the pressure on the talus and the pulling force on the ankle joint can be set at the desired value, and the pressure and the pulling force are kept stable throughout the training process, which facilitates self-training of the subject and maintains the consistency of the training. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the three-dimensional structure of the ankle stability training device of the present application; Figure 2 is a schematic view of the state of each part of the ankle stability training device of the present application when the ankle joint is flexed and extended; Figure 3 is a side view of the ankle stability training device of the present application; Figure 2 Figure 4 is a schematic view of the base of the ankle stability training device of the present application; Figure 5 , 6 is a schematic view of the talus pressure member of the ankle stability training device of the present application; Figure 7 , 8 is a schematic view of the swing rod of the ankle stability training device of the present application; Figure 9 is a schematic view of the pulling force member of the ankle stability training device of the present application; Figure 10 is a schematic view of the second clamping block installed on the swing rod; Figure 11 is a schematic view showing the operation of the talus pressure member; Figure 12 is a schematic view showing the operation of the pulling force member in cooperation with the swing rod. DETAILED DESCRIPTION

[0016] The ankle stability training device of the present application will be described in detail below with reference to the accompanying drawings.

[0017] The ankle stability training device of the present application comprises a base 10, an ankle stability training unit, and an ankle stability training unit.

[0018] The base 10 is formed in a plate shape, as shown in Figure 1 ​The rectangular base 11 shown in the figure is used to be placed horizontally on the ground. In order to ensure that the base is set stably on the ground, a plurality of height-adjusting bolts can be arranged on the lower side of the base, similar to the height-adjusting bolts arranged on the bottom surface of a washing machine.

[0019] The base 10 is formed with at least one foot support area 13 for supporting the corresponding instep of the ankle joint to be trained.

[0020] For each foot support area 13, a round tube 14a is arranged in front of it, and a lug 12 is arranged on the side. The round tube and the lug can be integrally formed on the base, or they can be adjustably mounted on the base, for example, a bolt is formed at the lower end of the round tube, a corresponding slot is formed on the base, and the round tube or the lug is fixed at the desired position by screwing the nut on the bolt. The position of the round tube and the lug can be adjusted to adapt to the specific situation of the subject and adjust the relative position of the ankle stability training unit.

[0021] The lower end of the round tube 14a is fixed to the upper surface of the base 10, and the upper part of the round tube 14a is formed into a first threaded hole, the lower end of the first bolt 14b is mounted in the first threaded hole, and the head end of the first bolt 14b is located above the round tube 14a; the lower part of the lug 12 is fixed to the upper surface of the base 10, and the middle part of the lug 12 is formed with a first through hole, and a rotating shaft is rotatably mounted in the first through hole.

[0022] One ankle stability training unit is correspondingly mounted on one foot support area.

[0023] Each ankle stability training unit comprises a talus pressure member 20, a tension member, and a swing rod.

[0024] The talus pressure member 20 comprises a downwardly curved pressure plate body 21, the front end of the pressure plate body 21 is formed with a sleeve 22, and the rear end of the pressure plate body 21 is formed with a talus pressure plate 23, the lower side of the talus pressure plate 23 is formed with a curved surface corresponding to the physiological curve of the instep of the human body, and the talus pressure plate 23 is used to press on the upper side of the talus corresponding to the ankle joint to be trained; the sleeve 22 is slidably sleeved on the round tube 14a; the sleeve 14a and the first bolt 14b are provided with a first solenoid spring 14c, the first solenoid spring 14c surrounds the round tube 14a and the first bolt 14b, is arranged between the head end of the first bolt 14b and the sleeve 22, and the pressure of the first solenoid spring 14c on the talus pressure member 20 is adjusted by adjusting the depth of the first bolt 14b inserted into the first threaded hole, and thereby the pressure of the talus pressure member 20 on the corresponding talus of the subject is adjusted.

[0025] The swing rod 30 comprises a main body section 31 extending in the front-rear direction, a first connecting rod 33 integrally formed at the front end of the main body section 31, the first connecting rod 33 extending in the left-right direction, a second circular hole 33a formed in the first connecting rod 33, a second connecting rod 32 integrally formed at the rear end of the main body section 31, the second connecting rod 32 extending in the up-down direction, a third circular hole 31a formed at the lower end of the second connecting rod 32, the second connecting rod 32 fixedly installed in the third circular hole 31a, a clamping block installation groove 32a formed at the upper portion of the second connecting rod 32, the clamping block installation groove 32a formed in the front-rear direction and located at the side close to the subject, for accommodating the clamping blocks, the clamping blocks comprising a first clamping block 53 and a second clamping block 51, the first clamping block 53 arranged in front of the second clamping block 51, the first clamping block 53 and the second clamping block 51 respectively formed with recesses 52, the recesses 52 of the first clamping block 53 and the second clamping block 51 together forming a calf accommodating hole, the first clamping block 53 abutting against the front side of the calf of the subject, and the second clamping block 51 abutting against the rear side of the calf of the subject, two second threaded holes 32b formed at the upper end of the second connecting rod 32, the two second threaded holes 32b formed in the up-down direction and communicating with the clamping block installation groove 32a, one second bolt respectively installed in the two second threaded holes 32b, the lower end of the second bolt 32b abutting against the corresponding first clamping block 53 or the second clamping block 51, thereby fixing the corresponding first clamping block 53 or the second clamping block 51 in the clamping block installation groove 32a, and the size of the calf accommodating hole being adjusted by adjusting the position of the first clamping block 53 or the second clamping block 51 in the clamping block installation groove 32a to adapt to the calf of the subject.

[0026] The tension member 40 comprises a tension main body 42, the tension main body 42 comprising a first tension member extending in the front-rear direction and a second tension member extending in the left-right direction, a U-shaped belt 41 installed on the second tension member, the belt 41 extending in the front-rear direction, the inner side of the bent portion of the belt 41 being used to act on the ankle joint, and the two ends of the belt 41 being fixed on the second tension member, the first tension member being located at the front side of the second tension member, the second end of the first tension member being integrally combined at the middle portion of the second tension member, a third threaded hole being formed along the length direction of the first tension member starting from the front end of the first tension member, a third bolt 43 being installed in the third threaded hole, the third bolt 43 being installed in the third threaded hole after passing through the second circular hole 33a, the diameter of the second circular hole 33a being larger than the diameter of the screw portion of the third bolt 43, a second solenoid spring 45 being arranged around the third bolt 43, the second solenoid spring 45 being arranged between the head end 44 of the third bolt 43 and the first connecting rod 33, thereby the second solenoid spring 45 pushing the third bolt 43 supported by the first connecting rod 33, thereby pulling the tension main body 42 and the belt 41 to apply forward tension to the rear side of the ankle joint.

[0027] A support pad of appropriate thickness is arranged on the foot bottom support area 13, so that the ankle joints of the subject and the rotating shafts installed in the first round holes of the ankle joint stability training units corresponding to the foot bottom support area are opposite to each other.

[0028] When the subject performs active flexion and extension movement of the ankle joint, the lower leg of the subject swings forward and backward with the ankle joint as the axis, and the swinging lower leg drives the swinging rod to swing around the rotating shaft through the clamping block, so that the tension member swings with the swinging of the lower leg during the flexion and extension of the ankle joint.

[0029] As shown in Figure 4 The foot bottom support area 13 is formed as a downward recess for accommodating the support pad with thickness.

[0030] The support pad can be provided with a pressure detection device to detect the stepping force of the foot bottom corresponding to the ankle joint.

[0031] The middle part of the base 10 is provided with an upward extending vertical rod 15, and the upper part of the vertical rod 15 is provided with a height adjustable horizontal rod 16, which is used for the subject to hold and keep the body during the training, especially when the ankle joint corresponding to the foot of the training side exerts greater stepping force on the foot bottom support area.

[0032] The base 10 is divided into a left training area, a middle area and a right training area; the left training area is used for training the left ankle joint, and the right training area is used for training the right ankle joint; the middle area is used for placing the foot bottom corresponding to the ankle joint which does not perform training.

[0033] Correspondingly, the foot bottom support area 13 includes two foot bottom support areas, which are left foot bottom support area and right foot bottom support area respectively; For the left foot bottom support area, the corresponding lug 12 is located on the left side thereof; for the right foot bottom support area, the corresponding lug 12 is located on the right side thereof.

[0034] In each ankle joint stability training unit, the included angle between the main part 31 of the swinging rod 30 and the second connecting rod 32 is 70-90 degrees.

[0035] In use, first, the talar plate is pressed on the talar bone at a proper position, the first bolt is adjusted so that the talar bone is subjected to proper pressure, a scale can be provided on the first bolt, for example, a groove is formed along the length of the bolt, and a spring pressure scale is provided in the groove, thereby maintaining proper talar pressure. At the same time, by selecting a proper support pad, the ankle joint is at a proper height and is aligned with the pivot (if necessary, the alignment can be achieved by adjusting the position of the lug on the base); the strap is put behind the ankle joint, the length of the strap is adjusted (for example, a length-adjusting buckle can be provided on the strap) so that the strap is in tension; the third bolt is adjusted so that the tension of the second solenoid spring on the strap reaches a proper tension value. The tension value can be considered as the tension on the ankle joint. When the ankle joint is subjected to active flexion and extension, the swing lever swings with the swing of the lower leg, so that the tension member also swings with the swing of the lower leg, so that the swing of the lower leg does not cause the tension state of the strap to change significantly, so that the tension on the ankle joint is basically in a stable state.

[0036] Through the ankle stability training device of the present application, the left ankle and the right ankle can be trained separately; the left ankle can also be trained with the right foot suspended, or the right ankle can be trained with the left foot suspended, in which case the subject needs to hold the crossbar to maintain body balance. In this way, the foot bottom exerts a larger stepping force on the support pad, so that the ankle joint is subjected to a larger tension in another direction, and the difficulty of stability training is increased.

[0037] Through the ankle stability training device of the present application, the left ankle and the right ankle can also be trained simultaneously.

Claims

1. An ankle stability training device, comprising: Base and ankle stability training unit; The base is formed in the shape of a plate for horizontal placement on the ground; At least one foot support area is formed on the base, which is used to support the foot corresponding to the ankle joint to be trained; for each foot support area, a round tube is provided in front and a lug is provided on the side; the lower end of the round tube is fixed to the upper surface of the base, the upper part of the round tube is formed into a first threaded hole, the lower end of the first bolt is installed in the first threaded hole, and the head end of the first bolt is located above the round tube; the lower part of the lug is fixed to the upper surface of the base, and a through first round hole is formed in the middle of the lug, in which a rotating shaft is rotatably installed; An ankle stability training unit is installed in a corresponding area of ​​the foot support. Each ankle stability training unit includes: a talus pressure component, a tension component, and a swing bar; The talus pressure component includes a downwardly curved pressure plate body, a sleeve formed at the front end of the pressure plate body, and a talus pressure plate formed at the rear end of the pressure plate body. The lower side of the talus pressure plate forms a curved surface corresponding to the physiological curvature of the human foot. The talus pressure plate is used to press on the upper side of the talus corresponding to the ankle joint to be trained. The sleeve can be slidably fitted onto the round tube. A first solenoid spring is installed on the sleeve and the first bolt. The first solenoid spring surrounds the round tube and the first bolt and is located between the head end of the first bolt and the sleeve. The pressure of the first solenoid spring on the bone pressure component is adjusted by adjusting the depth of the first bolt inserted into the first threaded hole, thereby adjusting the pressure of the talus pressure component on the corresponding talus of the subject. The swing arm includes a main body segment extending in the front-rear direction. A first connecting rod is integrally formed at the front end of the main body segment, extending in the left-right direction, and has a through second circular hole. A second connecting rod is integrally formed at the rear end of the main body segment, extending in the vertical direction. A through third circular hole is formed at the lower end of the second connecting rod, through which the second connecting rod is fixedly mounted on the rotating shaft. A clamping block mounting groove is formed on the upper part of the second connecting rod, extending in the front-rear direction and located on the side closest to the subject, for accommodating a clamping block. The clamping block includes a first clamping block and a second clamping block. The first clamping block is positioned in front of the second clamping block. The first and second clamping blocks each have recessed portions, which together form a calf receiving hole. The first clamping block abuts against the front side of the subject's calf, and the second clamping block abuts against the rear side of the subject's calf. The upper end of the second connecting rod has two second threaded holes, which are formed along the vertical direction and communicate with the clamping block mounting groove. A second bolt is installed in each of the two second threaded holes, and the lower end of the second bolt abuts against the corresponding first or second clamping block, thereby fixing the corresponding first or second clamping block in the clamping block mounting groove. The tension component includes a tension body, which comprises a first tension member extending in the front-to-back direction and a second tension member extending in the left-to-right direction. A U-shaped belt is mounted on the second tension member, extending in the front-to-back direction. The inner side of the curved portion of the belt is used to act on the ankle joint, and both ends of the belt are fixed to the second tension member. The first tension member is located in front of the second tension member, and the second end of the first tension member is integrally connected to the middle of the second tension member. Starting from the front end of the first tension member, a third threaded hole is formed along the length of the first tension member. A third bolt is installed in the third threaded hole. The third bolt passes through the second circular hole and is installed in the third threaded hole. The diameter of the second circular hole is larger than the diameter of the threaded portion of the third bolt. A second solenoid spring is arranged around the third bolt. The second solenoid spring is located between the head end of the third bolt and the first connecting rod. Thus, the second solenoid spring is supported by the first connecting rod and pushes the third bolt, thereby pulling the tension body and the belt to apply a forward tension force to the rear of the ankle joint. A support pad of appropriate thickness is set on the foot support area so that the subject's ankle joint and the rotating shaft installed in the first round hole of the ankle joint stability training unit corresponding to the foot support area are directly opposite each other. When the subject performs ankle flexion and extension movements, the subject's lower leg swings back and forth around the ankle joint as the axis. The swinging lower leg drives the swinging rod to swing around the axis of rotation through the clamping block. Thus, during the flexion and extension of the ankle joint, the tension component swings along with the swinging of the lower leg.

2. The ankle joint stability training device according to claim 1, characterized in that: The foot support area is formed as a downward-facing depression, which is used to accommodate a support pad with thickness.

3. The ankle joint stability training device according to claim 2, characterized in that: The support pad is equipped with a pressure detection device to detect the stepping force on the sole of the foot corresponding to the ankle joint.

4. The ankle joint stability training device according to claim 1, characterized in that: The base has an upward-extending upright pole in the middle, and an adjustable horizontal bar at the top of the upright pole for the subject to grip and maintain body position during training.

5. The ankle joint stability training device according to claim 4, characterized in that: The base is divided into a left training area, a middle area, and a right training area; the left training area is used to train the left ankle joint, the right training area is used to train the right ankle joint, and the middle area is used to place the sole of the foot corresponding to the ankle joint that is not being trained.

6. The ankle joint stability training device according to claim 5, characterized in that: The plantar support zone includes two plantar support zones, namely the left plantar support zone and the right plantar support zone; For the left foot support area, the corresponding lug is located on its left side; For the right foot support area, the corresponding lug is located on the right side.

7. The ankle joint stability training device according to claim 1, characterized in that: In each ankle stability training unit, the angle between the main body of the swing bar and the second connecting bar is 70-90 degrees.

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