A portable multifunctional lower limb fracture training and recovery device

Abstract

The present invention belongs to the technical field of medical devices, and particularly relates to a portable multifunctional lower limb fracture training and recovery device, which can be used for the internal and external lesion sites of the ankle joint, and can be used for front, back, left and right rotation, internal and external rotation; and is particularly suitable for being carried around, so as to achieve the effect of training anytime and anywhere; the technology first uses a foot support as a foot support, and a block wraps the outer periphery of the foot to form a force point when the foot moves in a plane on the ground, and a forefoot block prevents the foot from being separated from the foot support. The bottom of the foot support has rollers, and the above functions are realized by the foot support moving in all directions around the knee joint close to the ground, and the sole of the foot can be automatically massaged to promote blood circulation in the affected limb, relieve tension in the bottom tissue, and promote recovery.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a portable multifunctional lower limb fracture training and recovery device. Background Art

[0002] Foot drop is a common complication after lower limb fracture surgery, which seriously affects the patient's ability to stand and walk. Studies have shown that ankle-foot orthoses play a good role in preventing foot deformities and improving walking ability. At present, there are many clinical nursing methods to prevent foot drop, such as T-shoes, ankle orthoses, etc., but the clinical effect is often poor [domestic and foreign studies have confirmed that the use of foot or ankle orthoses can effectively prevent foot drop. Some studies have also proposed that the fastest and most direct way to control foot drop is to use ankle-related orthoses. However, the current ankle-related orthoses have the disadvantages of simple fixation and restricted activities, and the patient's lower limbs are prone to internal rotation or external rotation after wearing the orthosis, which can easily cause inversion or eversion of the foot. Summary of the invention

[0003] The embodiment of the present invention provides a portable multifunctional lower limb fracture training and recovery device to solve the problems in the prior art.

[0004] The embodiment of the present invention adopts the following technical solution:

[0005] A portable multifunctional lower limb fracture training and recovery device comprises a foot support and a circle of ribs extending upward along the edge of the foot support, and a forefoot rib integrally arranged with the front rib is provided above the front end of the foot support.

[0006] Furthermore, the bottom of the foot support is provided with a plurality of universal pulleys or a plurality of ball bearings.

[0007] Furthermore, a plurality of balls are provided at the bottom of the foot support, and the balls include a ball body and a ball retainer. The ball body is fixed in the ball retainer, and a mounting groove is provided at the bottom of the foot support. The ball retainer is embedded in the mounting groove and adhered to the mounting groove, and the top part of the ball body is located above the upper surface of the foot support.

[0008] Based on the same inventive concept, the present invention can also adopt the following solutions:

[0009] A portable multifunctional lower limb fracture training and recovery device comprises a foot support and a circle of ribs extending upward along the edge of the foot support, and a forefoot rib integrally arranged with the front rib is provided above the front end of the foot support.

[0010] Furthermore, the bottom of the foot support is provided with a plurality of universal pulleys or a plurality of ball bearings.

[0011] Furthermore, a plurality of balls are provided at the bottom of the foot support, and the balls include a ball body and a ball retainer. The ball body is fixed in the ball retainer, and a mounting groove is provided at the bottom of the foot support. The ball retainer is embedded in the mounting groove and adhered to the mounting groove, and the top part of the ball body is located above the upper surface of the foot support.

[0012] Furthermore, it also includes a metal plate; the ball bearings and the universal pulley are installed on the bottom surface of the foot support, and a magnet is installed in the interlayer of the foot support.

[0013] Based on the same inventive concept, the present invention can also adopt the following solutions:

[0014] A portable multifunctional lower limb fracture training and recovery device comprises a foot support and a circle of ribs extending upward along the edge of the foot support, and a forefoot rib integrally arranged with the front rib is provided above the front end of the foot support; a two-dimensional mobile platform is included, and Velcro is provided on the upper surface of the two-dimensional mobile platform and the lower bottom surface of the foot support, and the foot support is detachably connected to the upper surface of the two-dimensional mobile platform via the Velcro.

[0015] Furthermore, the two-dimensional mobile platform includes two first bases arranged opposite to each other and two first guide rods fixed between the two first bases; includes a first slide mounted on the two first guide rods; includes two groups of guide blocks mounted on the upper surface of the first slide; includes two second guide rods interspersed on the two groups of guide blocks; includes a base plate connecting the two second guide rods and two second bases at both ends of the base plate.

[0016] Furthermore, it includes a first motor and a second motor; a first driving screw is installed on the two first bases, a first nut seat threadedly connected to the first driving screw is provided at the bottom of the first slide, and the first motor is connected to the first driving screw; a second driving screw is installed between the two second bases, a second nut seat threadedly connected to the second driving screw is provided at the top of the first slide and also between the two groups of guide blocks, and the second motor is connected to the second driving screw.

[0017] At least one of the above-mentioned technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects: it can target the internal and external lesions of the ankle joint, and can rotate forward, backward, left and right, inward and outward; and it is particularly suitable for being carried around and can be used for training anytime and anywhere; the technology first uses the foot support as a support for the foot, and the outer periphery of the foot is wrapped to form a force point when the foot moves in a plane on the ground. The forefoot guard prevents the foot from separating from the foot support, and the bottom of the foot support has rollers. The above-mentioned functions are achieved by the foot support moving in all directions around the knee joint close to the ground, and the sole of the foot can be automatically massaged to promote blood circulation in the affected limb, relieve tension in the bottom tissue, and promote recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A side view of the leg state after sitting down during recovery training;

[0020] Figure 2 This is a diagram of the state in which the calf is extended forward during recovery training, the sole of the foot is touching the ground, and the foot is facing the calf backward;

[0021] Figure 3 Schematic diagram of the state in which the sole of the foot is on the ground and the calf moves backwards, and the foot turns forward relative to the calf during recovery training;

[0022] Figure 4 This is a front view of the leg position after sitting down during recovery training;

[0023] Figure 5 This is a diagram of the state of the foot being everted relative to the calf when the sole of the foot is touching the ground and the calf moves to the left during recovery training;

[0024] Figure 6 This is a diagram of the state of the foot turning inward relative to the calf when the sole of the foot is touching the ground and the calf moves to the right during recovery training;

[0025] Figure 7 This is a schematic diagram of the structure of the foot support and rollers of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the foot support, roller, magnet and metal plate of the present invention;

[0027] Fig. 9 This is a schematic diagram of the structure of the foot support in accordance with the present invention in conjunction with the two-dimensional mobile platform;

[0028] Reference numerals

[0029] Foot support 1, mounting groove 11, rib 2, forefoot rib 3, ball 4, ball body 41, ball retainer 42, metal plate 6, magnet 7, two-dimensional moving platform 8, first base 81, first guide rod 82, first slide 83, guide block 84, second guide rod 85, base plate 86, second base 87, first drive screw 88, second drive screw 89. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] The portable multifunctional lower limb fracture training and recovery device in this embodiment comprises a foot support 1, the edge of the foot support 1 is provided with a circle of retaining edges 2 extending upward, and the front end of the foot support 1 is provided with a forefoot retaining edge 3 integrally arranged with the front retaining edge 2 (see Figure 8 , Fig. 9 The foot support 1 serves as a support for the foot, the rib 2 wraps around the periphery of the foot to form a force point when the foot moves in a plane on the ground, and the forefoot rib 3 prevents the foot from being separated from the foot support 1.

[0034] When doing recovery training, you can sit down anywhere, put your feet on the foot support 1, and move your calves with the knee joint as the center point. When the calf is extended forward, the sole of the foot is close to the ground, and the foot will be turned back relative to the calf (compare Figure 1 and Figure 2 ); conversely, if the calf moves backward, the foot turns forward relative to the calf (compare Figure 1 and Figure 3 ); when the calf moves to the left, the foot turns outward relative to the calf (compare Figure 4 and Figure 5 ); when the calf moves to the right, the foot turns inward relative to the calf (compare Figure 4 and Figure 6 ); the calf rotates 360 degrees relative to the thigh, and the foot is equivalent to drawing a circle on the ground, and the foot is constantly rotating inwards and outwards relative to the calf (not shown in the figure); this is to perform restorative training on the ankle joint.

[0035] During recovery training, the foot support 1 is always in friction with the ground. In order to reduce the friction, a ball 4 or a pulley can be installed under the foot support 1. The pulley must be a universal pulley. If it is a ball 4, the ball 4 can only play the role of reducing friction. It can also have the function of massaging the sole of the foot, refer to Figure 8That is, the ball 4 includes a ball body 41 and a ball holder 42, the ball body 41 is fixed in the ball holder 42, the foot support 1 has a mounting groove 11 at the bottom, the ball holder 42 is embedded in the mounting groove 11 and adheres to the mounting groove 11, and the top part of the ball body 41 is above the upper surface of the foot support 1. This allows the ball body 41 to massage the acupuncture points on the sole of the foot while the foot is moving, so as to relieve the tension of the sole tissue and promote recovery.

[0036] Embodiment 2:

[0037] This embodiment is based on the first embodiment. Considering the stiffness of the ankle joint and the contraction of muscles and ligaments after surgical treatment of the joint, which cause joint dysfunction, it is difficult to keep the foot still by pressing against the weight of the thigh in the first embodiment, so an auxiliary compression component is needed to help it recover. The difficulty referred to is, for example, when the calf is extended forward, the foot is tilted, so the foot is actually relatively still with the calf, so the training effect cannot be achieved. The auxiliary compression component uses an easy-to-carry metal plate 6 and a magnet 7 matched therewith. The magnet 7 is fixed in the bottom interlayer of the foot support 1. The foot is fixed to the metal plate 6 by the magnet 7, so as to ensure that the foot support 1, that is, the bottom surface of the foot, always remains horizontal. On this basis, it is more necessary to install non-metallic rollers or balls 4 to reduce the resistance of the foot support 1 when it moves.

[0038] In this case, the structure is also different. If a ball 4 with a massage function is used, the magnet 7 cannot be a whole piece, but a plurality of small magnets 7 are sandwiched between the balls 4 (refer to Figure 7 ).

[0039] If a ball bearing 4 or a universal pulley without a massage function is used, the ball bearing 4 or the universal pulley only needs to be installed on the bottom surface of the foot support 1, and the magnet 7 can be installed in the interlayer of the foot support 1 as a whole.

[0040] Embodiment three:

[0041] This embodiment takes two issues into comprehensive consideration. First, it takes into account the stiffness of the ankle joint and the contraction of muscles and ligaments after surgical treatment of the joint, which causes joint dysfunction. It is difficult to keep the foot still by pressing against the weight of the thigh. Second, it takes into account the weakness and difficulty in movement of the calf. It is impossible to move the calf and therefore it is impossible to perform restorative training independently.

[0042] The portable multifunctional lower limb fracture training and recovery device of this embodiment refers to Fig. 9, comprising a foot support 1, the edge of the foot support 1 is provided with a circle of ribs 2 extending upward, and the upper front end of the foot support 1 is provided with a forefoot rib 3 integrally provided with the front rib 2. The foot support 1 serves as a support for the foot, and the ribs 2 wrap around the periphery of the foot to form a force point when the foot moves in a plane on the ground, and the forefoot rib 3 prevents the foot from detaching from the foot support 1. The foot support 1 is detachably connected to the mobile end of the two-dimensional mobile platform 8, that is, Velcro is provided on the bottom surface of the foot support 1 and the upper surface of the two-dimensional mobile platform 8. When performing recovery training, the foot support 1 is fixed on the two-dimensional platform to ensure that the foot support 1, that is, the bottom surface of the foot, always remains horizontal. Specifically, the two-dimensional mobile platform 8 includes two first bases 81 arranged opposite to each other and two first guide rods 82 fixed between the two first bases 81; a first slide 83 installed on the two first guide rods 82; two groups of guide blocks 84 installed on the upper surface of the first slide 83; two second guide rods 85 inserted on the two groups of guide blocks 84; a base plate 86 connecting the two second guide rods 85 and two second bases 87 at both ends of the base plate 86. The foot support 1 can be fixed on the top of the base plate 86, and the weight of the two-dimensional mobile platform 8 can keep the foot level, and it can also replace the role of the universal pulley or the ball 4 to reduce the friction of the translation of the foot support 1.

[0043] On this basis, the two-dimensional mobile platform 8 can be equipped with two motors, which drive the foot support 1 to move actively, so as to avoid the problem of calf weakness and inability to recover training autonomously. Specifically, a first driving screw 88 is installed on the two first bases 81, a first nut seat threadedly connected to the first driving screw 88 is provided at the bottom of the first slide 83, and the first motor is connected to the first driving screw 88; a second driving screw 89 is installed between the two second bases 87, and a second nut seat threadedly connected to the second driving screw 89 is provided at the top of the first slide 83 and between the two groups of guide blocks 84, and the second motor is connected to the second driving screw 89. By driving the first driving screw 88 to rotate by the first motor, the first slide 83 can be moved on the first guide rod 82 to achieve left and right reciprocating movement, and the second motor drives the second driving screw 89 to move, so that the second guide rod 85 and the base plate 86 can be moved on the two groups of guide blocks 84 to achieve front and back reciprocating movement. When the first motor and the second motor work at the same time, circular motion can be achieved.

[0044] That is to say, the movement of the foot support 1 includes at least four modes: forward and backward reciprocating movement, left and right reciprocating movement, forward circular motion, and reverse circular motion, so as to rotate the ankle joint forward, backward, left, right, inward, and outward.

[0045] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A portable multifunctional lower limb fracture training and recovery device, characterized in that: The invention comprises a foot support (1) and a circle of retaining edges (2) extending upwardly along the edge of the foot support (1), and a forefoot retaining edge (3) integrally arranged with the front retaining edge (2) is arranged above the front end of the foot support (1), and a two-dimensional mobile platform (8), wherein the upper surface of the two-dimensional mobile platform (8) and the lower bottom surface of the foot support (1) are provided with Velcro, and the foot support (1) is detachably connected to a base plate (86) on the upper surface of the two-dimensional mobile platform (8) through the Velcro, and the two-dimensional mobile platform (8) comprises two first bases (81) arranged opposite to each other and two first guide rods (82) fixed between the two first bases (81); and comprises a first slide (83) mounted on the two first guide rods (82); The invention comprises two groups of guide blocks (84) installed on the upper surface of a first slide (83); two second guide rods (85) inserted in the two groups of guide blocks (84); a base plate (86) connecting the two second guide rods (85) and two second bases (87) at both ends of the base plate (86), and a first motor and a second motor; a first driving screw rod (88) is installed on the two first bases (81); a first nut seat threadedly connected to the first driving screw rod (88) is provided at the bottom of the first slide (83); and the first motor is connected to the first driving screw rod (88); a second driving screw rod (89) is installed between the two second bases (87); a second nut seat threadedly connected to the second driving screw rod (89) is provided at the top of the first slide (83) and also between the two groups of guide blocks (84); and the second motor is connected to the second driving screw rod (89).

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