A rehabilitation training device for lower limbs

Abstract

The application discloses a rehabilitation training device for lower limbs, which comprises a boot body, the boot body comprises a leg part and a foot side plate, the foot side plate is connected with the leg part, and the foot side plate is oppositely arranged to accommodate a foot; a foot base body is connected with the foot side plate; a foot base is connected with the foot base body, the foot base extends in a heel-to-toe direction, the foot base is provided with a first air port and an internal first chamber; a plurality of elastic support parts are arranged in the heel-to-toe direction in sequence, the elastic support parts are connected with the first chamber of the foot base, the contact surfaces of the plurality of elastic support parts with the foot are arranged at an angle in the heel-to-toe direction, and the plurality of elastic support parts support the foot at an angle after being inflated. In the application, the plurality of elastic support parts directly contact the instep of the foot and flexibly contact the instep, the shape of the plurality of elastic support parts is suitable for the rotating shape of the instep when the instep is driven to dorsiflex or plantarflex around the ankle as the center, the rehabilitation device is suitable for the patient, and the use comfort of the patient is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a rehabilitation training device for the lower limbs. Background Technology

[0002] In the treatment of some existing brain diseases and lower limb diseases, patients lose the ability to move their feet and legs for a certain period of time after treatment, which leads to disuse muscle atrophy, resulting in ankle stiffness, muscle relaxation / atrophy, and foot drop. Disuse muscle atrophy is a typical phenomenon that causes patients to recover their normal walking speed slowly. In order to accelerate the patient's rapid recovery of walking after surgery, medical staff carry out rehabilitation therapy during the patient's bed rest period, so that the patient can passively perform dorsiflexion and plantarflexion movements, thereby ensuring the muscle vitality of the patient during the bed rest period.

[0003] In hospital clinical rehabilitation, many rehabilitation devices already exist to replace medical staff in performing rehabilitation movements of patients' feet and legs. In existing technologies, a foot plate is usually set on the underside of the boot, and a driving component (cylinder, motor or airbag) drives the foot plate to rotate along a central axis, thereby driving the foot to rotate. However, this kind of rigid connection provides rigid drive to the foot based on the central axis. The patient's foot and ankle need to adapt to the rigid drive structure of the rehabilitation device. Prolonged use can lead to ankle discomfort and affect the patient's recovery. Therefore, based on this situation, it is necessary to design a rehabilitation training device for the lower limbs. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rehabilitation training device for the lower limbs.

[0005] The technical problem solved by this invention is achieved through the following technical solution:

[0006] A rehabilitation training device for the lower limbs includes a boot body comprising a leg body and foot side plates, the foot side plates being connected to the leg body and disposed opposite each other to accommodate the foot;

[0007] Foot base, the foot base being connected to the foot side plate;

[0008] A foot base, which is connected to the foot base body, extends from the heel to the toes, and is provided with a first air vent and an internal first chamber;

[0009] The multi-stage elastic support is arranged sequentially from heel to toe. The elastic support is connected to the first chamber of the foot base. The contact surfaces of the multi-stage elastic support with the foot are set at an angle in the direction from heel to toe. After inflation, the multi-stage elastic support provides angled support to the foot.

[0010] In this invention, an external air pump is connected to the multi-stage elastic support section. After the air pump inflates the multi-stage elastic support section, the entire multi-stage elastic support section is tilted at an angle, driving the foot to rotate and perform dorsiflexion or plantarflexion movements, thereby causing the ankle to move and the leg muscles to stretch or contract. The multi-stage elastic support section directly contacts the sole of the foot and makes flexible contact with the sole. When driving the sole to dorsiflex or plantarflex around the ankle, its own shape can also adapt to the rotation shape of the sole. This ensures that the rehabilitation device adapts to the patient, rather than the patient adapting to a rigid (centered on the pivot axis) rotation shape of the foot, thereby improving the patient's comfort.

[0011] Preferably, the foot base has a second air vent and an internal second chamber; the foot platform includes a first platform and a second platform, both of which have a first air vent and a first chamber, the first air vent communicating with the second chamber, and the first platform and the second platform being interchangeably located on both sides of the foot base.

[0012] The first and second abutments, located on either side of the foot base, are equipped with multi-stage elastic support sections. The first and second abutments, centered on the foot base, change positions, causing the elastic support sections to change angles. Through the elastic support sections, dorsiflexion and plantarflexion can be performed. In particular, based on this invention, patients can perform dorsiflexion and plantarflexion movements in bed, thus shortening the patient's rehabilitation training time.

[0013] Preferably, it further includes a toe elastic portion, which is connected to the foot base and communicates with the first air vent, and the toe elastic portion is located at the end of the foot base.

[0014] Preferably, the elastic support includes an outer rubber sleeve and an inner air bladder. The lower edge of the outer rubber sleeve has a flap, and the inner wall of the first chamber has a buckle groove. The inner air bladder is located in the first chamber. After the inner air bladder is inflated, it can abut against the flap and provide a clamping force to the flap.

[0015] By incorporating an inner airbag and a detachable outer rubber sleeve, the outer rubber sleeve assists in the contraction of the airbag during deflation. Furthermore, the detachable outer rubber sleeve provides conditions for replacement and cleaning, ensuring the cleanliness of the equipment. In particular, the outer rubber sleeve's snap fasteners engage perfectly with the base's grooves during inner airbag inflation, enhancing the ease of fitting the outer rubber sleeve.

[0016] Preferably, a central shaft is rotatably connected to the lower side of the foot base. The central shaft includes a first shaft extending between adjacent foot side plates. The first base and the second base are each provided with a support leg in the direction close to the first shaft. The support leg is rotatably connected to the first shaft. The first base and the second base rotate in opposite directions about the first shaft.

[0017] With the boot body protecting the foot and lower leg, the first and second base platforms can rotate around the first axis as the center. After rotating, they break free from the restriction of the boot body and rotate as a whole around the central axis. The first and second base platforms realize position transformation, thereby realizing the angle transformation of the multi-stage elastic support part in the limited space formed by the boot body.

[0018] Preferably, the air inlet of the first air port is located on the end face of the first base / second base adjacent to the foot base, and the air inlet of the second air port is located on the end face of the foot base adjacent to the foot side plate.

[0019] By cooperating with the first and second air ports in the foot base and foot platform, the first and second platforms can be inflated through fixed airways regardless of their position. The airbag, foot platform, and overall airway form a perfect fit without interference.

[0020] Preferably, the first base / second base is provided with a plurality of first chambers, the number of first chambers being adapted to the number of the multi-stage elastic support parts connected to the first base / second base, and the plurality of first chambers of the first base / second base are interconnected.

[0021] Preferably, a skeleton is connected between the foot side plates, and a first slot is opened between the multi-stage elastic support parts of the foot base. The skeleton is adapted to the first slot, and the upper surface of the skeleton is adapted to the upper surface of the foot base.

[0022] Preferably, the inner end face of the foot side plate is provided with a positioning element, and the upper end face of the foot base is also provided with a second groove, which is adapted to the positioning element.

[0023] Preferably, it also includes bolts and bolt holes penetrating the foot base and foot platform.

[0024] The advantages and positive effects of this invention are:

[0025] 1. In this invention, the multi-stage elastic support part directly contacts the sole of the foot and makes flexible contact with the sole. When the sole is driven to dorsiflex or plantarflex around the ankle, its own shape can also adapt to the rotation shape of the sole. This allows the rehabilitation device to adapt to the patient, rather than the patient adapting to the rigid (centered) rotation shape of the foot, thereby improving the patient's comfort.

[0026] 2. In this invention, the multi-stage elastic support can drive the patient's foot to dorsiflex and plantarflex, enabling the patient to complete passive rehabilitation training, and can also provide a flexible surface with elastic potential energy so that the patient can actively perform dorsiflexion and plantarflexion training in the later stage of rehabilitation. It has the functions required by the patient throughout the entire rehabilitation period, with high functional integration and high usability.

[0027] 3. This invention achieves angle transformation of multi-stage elastic support parts within a limited space through the cooperation of the foot base, foot platform, central axis and air passage, which greatly improves the integration of the structure, and is convenient to operate, simple in structure and highly stable. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is an isometric structural schematic diagram of Embodiment 1 of the present invention;

[0030] Figure 2 This is an isometric structural schematic diagram of Embodiment 2 of the present invention;

[0031] Figure 3 This is an exploded view of part of the structure in Embodiment 2 of the present invention;

[0032] Figure 4 These are partial isometric views of the structures in Embodiment 2 of the present invention;

[0033] Figure 5 This is an exploded view of the relevant structure of the pivot portion in Embodiment 2 of the present invention;

[0034] Figure 6 This is a schematic diagram of the changes in the first and second bases in Embodiment 2 of the present invention. Figure 1 ;

[0035] Figure 7 This is a schematic diagram of the changes in the first and second bases in Embodiment 2 of the present invention. Figure 2 ;

[0036] Figure 8 This is a cross-sectional view of Embodiment 2 of the present invention;

[0037] Figure 9 This is Embodiment 2 of the present invention. Figure 8 Enlarged view of point A in the middle;

[0038] Figure 10 This is an isometric view of the cover plate installed in Embodiment 2 of the present invention.

[0039] In the diagram: 100, boot body; 101, first strap groove; 102, second strap groove; 103, third strap groove; 110, leg body; 111, leg side plate; 112, leg back plate; 120, foot side plate; 130, skeleton; 140, positioning component;

[0040] 200. Foot base; 201. Second air inlet; 202. Second chamber; 203. Circumvention groove; 204. Protrusion;

[0041] 300, Foot base; 301, First air inlet; 302, First chamber; 302a, Notch; 303, Clip; 304, Support leg; 305, First groove; 306, Second groove; 307, Front plate; 308, Rear plate; 309, Sealing plate; 310, First base; 320, Second base; 330, Sinking groove;

[0042] 400. Elastic support section; 410. Outer rubber sleeve; 411. Flip-up buckle; 420. Inner airbag; 421. Upper airbag; 422. Lower airbag;

[0043] 500. Elastic part of the toes;

[0044] 600. Central axis; 610. Central pivot; 620. Central block; 630. First axis body;

[0045] 710. Bolt; 720. Bolt hole; 730. Rubber plug; 740. Fastener;

[0046] 800, cover plate. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0050] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0051] Example 1:

[0052] A rehabilitation training device for the lower limbs includes a boot body 100, which includes a leg body 110 and a foot side plate 120. The foot side plate 120 is connected to the leg body 110 and is disposed opposite to each other to accommodate the foot.

[0053] Foot base 200, foot base 200 is connected to foot side plate 120;

[0054] Foot base 300, foot base 300 is connected to foot base 200, foot base 300 extends from heel to toe, foot base 300 is provided with first air port 301 and internal first chamber 302;

[0055] The multi-stage elastic support part 400 is arranged sequentially from heel to toe. The elastic support part 400 is connected to the first chamber 302 of the foot base 300. The contact surface between the multi-stage elastic support part 400 and the foot is set at an angle in the direction from heel to toe. After inflation, the multi-stage elastic support part 400 supports the foot at an angle.

[0056] like Figure 1 As shown, the leg body 110 of the boot body 100 is arc-shaped, which can protect the left, right and back sides of the patient's leg. The front side is open, and the left, right and back sides of the leg body 110 are integrally formed. The leg body 110 has a first strap groove 101 and a second strap groove 102 at the opening position on the front side. The first strap groove 101 and the second strap groove 102 are arranged vertically. The lower second strap groove 102 is located slightly above the ankle position, and the upper first strap groove 101 is located at the calf position. Both the first strap groove 101 and the second strap groove 102 are connected to straps (not shown in the figure).

[0057] like Figure 1 As shown, the lower side of the leg body 110 is connected to the front foot side plate 120 and the rear foot side plate 120. The patient's foot is located between the two foot side plates 120, which provide protection for the foot.

[0058] like Figure 1 As shown, the foot base 200 is located between the two foot side plates 120, and its front and rear ends are connected to the foot side plates 120. The foot platform 300 is connected to the foot base 200 and extends in the left and right directions to cover part of the foot; the first chamber 302 ( Figure 1 (Not shown in the image) is used to install the elastic support 400, and the first air port 301 ( Figure 1 (Not shown in the image) is the air intake port of the elastic support 400.

[0059] like Figure 1 As shown, the multi-stage elastic support 400 includes multiple elastic support sections 400, which are arranged sequentially in the left-right direction. The left elastic support section 400 has the lowest relative height, and the right elastic support section 400 has the highest relative height. The multi-stage elastic support section 400 can expand after being inflated to support the patient's foot, so that the angle between the patient's foot and the multi-stage elastic support section 400 is consistent, thereby driving the patient's foot to perform dorsiflexion or plantarflexion movements.

[0060] like Figure 1 As shown, the upper surface of the foot abutment 300 is horizontal, and the multi-stage elastic support part 400 is on the foot abutment 300. The overall tilt angle of the upper surface of the multi-stage elastic support part 400 is 22°. In some embodiments, in order to simultaneously meet the needs of dorsiflexion and plantarflexion, the overall tilt angle of the upper surface of the multi-stage elastic support part 400 is between 20° and 50°. In actual use, considering the angles of plantarflexion and dorsiflexion, the adaptation needs of a large proportion of patients, and the aesthetic design of the product, 20°-40° is preferred. In some embodiments, since an excessively high elastic support part 400 would lead to excessive power demand on the air pump and increase energy consumption, the upper surface of the foot abutment 300 can be designed with a certain slope. The elastic support part 400 is located on the sloped foot abutment 300, which can reduce the volume of the elastic support part 400 and thus ensure the support effect.

[0061] In this invention, the multi-stage elastic support part 400 is externally connected to an air pump. After the air pump inflates the multi-stage elastic support part 400, the multi-stage elastic support part 400 is tilted at an angle, which drives the foot to rotate and perform dorsiflexion or plantarflexion. As a result, the ankle moves and the leg muscles stretch or contract. The multi-stage elastic support part 400 directly contacts the sole of the foot and makes flexible contact with the sole. When driving the sole to dorsiflex or plantarflex around the ankle, its own shape can also adapt to the rotation shape of the sole. This ensures that the rehabilitation device adapts to the patient, rather than the patient adapting to a rigid (centered) rotation shape of the foot, thereby improving the patient's comfort.

[0062] On the other hand, in the early stage of rehabilitation, the present invention can adjust the angle of the elastic support part 400 by using an air pump to encourage the patient to passively exercise the ankle and calf muscles. Furthermore, in the later stage of rehabilitation, while the elastic support part 400 is inflated (generally the power of the air pump is less than that during passive rehabilitation), the patient can step on the elastic support part 400 and perform toe or heel exercises to actively exert force to overcome the elastic force of the elastic support part 400, thus providing flexible and comprehensive support to help the patient in the early and late stages of rehabilitation.

[0063] Example 2:

[0064] Based on Embodiment 1, the leg body 110 includes a left leg side plate 111, a right leg side plate 111, and a leg back plate 112. The leg side plate 111 is integrally formed with the foot side plate 120. A plurality of third strap grooves 103 are provided on the rear side of the leg side plate 111. The third strap grooves 103 are connected to the leg back plate 112 by straps or elastic bands, thereby preserving the expandability of the lower leg. In some cases, the leg back plate 112 may also have a fourth strap groove, which cooperates with the third strap grooves 103 to fix the leg back plate 112. In some cases, the leg back plate 112 and the ankle and lower leg can also be fixed by combining straps passing through the third strap grooves 103.

[0065] like Figure 2 As shown, the foot base 300 is located between the two foot side plates 120 and extends from the toes to the heel, that is, it extends in the left and right direction in the figure. The foot base 200 is located in the middle of the foot base 300. The front and rear ends of the foot base 200 are connected to the two foot side plates 120. The foot base 200 is the structural hub to ensure the stability of the overall structure. Each foot base 300 is provided with a first chamber 302. The upper side of the first chamber 302 is open to accommodate the elastic support part 400.

[0066] like Figure 2 As shown, the elastic support part 400 includes an inner airbag 420 and an outer rubber sleeve 410. The buckle 411 of the outer rubber sleeve 410 is fastened at the opening of the first chamber 302. The inner airbag 420 includes an upper airbag 421 and a lower airbag 422. The lower airbag 422 is located in the first chamber 302, and the volume of the lower airbag 422 after inflation is larger than the opening of the first chamber 302, so as to keep the airbag in the first chamber 302. The upper airbag 421 expands after inflation, and drives the outer rubber sleeve 410 to expand, forming the final support state.

[0067] The foot base 200 is constructed with a second air vent 201 and an internal second chamber 202; the foot platform 300 includes a first platform 310 and a second platform 320, both of which are constructed with a first air vent 301 and a first chamber 302. The first air vent 301 communicates with the second chamber 202. The first platform 310 and the second platform 320 are arranged on both sides of the foot base 200 in interchangeable positions.

[0068] A central shaft portion 600 is rotatably connected to the lower side of the foot base 200. The central shaft portion 600 includes a first shaft 630 extending between adjacent foot side plates 120. The first base 310 and the second base 320 are each constructed with a support leg 304 in the direction close to the first shaft 630. The support leg 304 is rotatably connected to the first shaft 630. The first base 310 and the second base 320 rotate in opposite directions about the first shaft 630 as the center.

[0069] like Figure 4 As shown, the foot base 200 is connected to the lower side of the two foot side plates 120 and is perpendicular to the plane where the two foot side plates 120 are located. The first base 310 is located on the left side of the foot base 200, and the second base 320 is located on the right side of the foot base 200. The first base 310 and the second base 320 are symmetrically arranged with respect to the foot base 200. The multi-stage elastic support part 400 includes four elastic support parts 400. The two relatively lower elastic support parts 400 on the left side are connected to the first base 310, and the two relatively higher elastic support parts 400 on the right side are connected to the second base 320.

[0070] Combination Figure 4 and Figure 5 The first base 310 has a first air inlet 301 on its right end face, which is the side connected to the foot base 200. The second base 320 has a first air inlet 301 on its left end face, which is the side connected to the foot base 200. The first air inlet 301 is the air inlet of the first chamber 302. Both the first base 310 and the second base 320 have two first air inlets 301. The left and right sides of the foot base 200 are both flat. The foot base 200 contains a second chamber 202. Both the left and right sides of the foot base 200 have two air outlets for the second chamber 202. The air outlets of the second chamber 202 are connected to the first air inlets 301.

[0071] like Figure 5 As shown, a rubber plug 730 is installed at the first air port 301. The rubber plug 730 forms a plug head with a bevel on the side facing the foot base 200. The plug head cooperates with the air outlet of the second chamber 202 to form a seal at the connection between the air outlet of the second chamber 202 and the first air port 301.

[0072] While the boot body 100 protects the foot and lower leg, the first base 310 and the second base 320 can rotate around the first axis 630. After rotating, they break free from the restriction of the boot body 100 and rotate as a whole around the central axis. The first base 310 and the second base 320 realize position transformation, thereby realizing the angle transformation of the multi-stage elastic support part 400 in the limited space formed by the boot body 100.

[0073] like Figure 5 As shown, the foot base 200 is a plate-shaped structure with front and back symmetry. The rear side is the second air port 201 (not shown in the figure), which is the air inlet of the overall airway structure. The inner side is the second chamber 202, which extends front and back. The second chamber 202 forms two air outlets on the left and right sides of the foot base 200 for ventilation with the first air port 301.

[0074] like Figure 5As shown, a central axis portion 600 is connected to the lower side of the foot base 200. The central axis portion 600 includes a central pivot 610 and a central block 620. The central pivot 610 extends along the central axis of symmetry of the foot base 200 and is rotatably connected to the foot base 200. The central axis portion 600 also includes a central block 620, which is connected to the lower side of the central pivot 610. A first axis 630 is connected to the central block 620 and extends front to back. The first axis 630 is symmetrical about the central block 620. Multiple legs 304 are connected to the right end of the base 310. The multiple legs 304 are spaced apart and are located on the lower right side of the first base 310. The legs 304 are rotatably connected to the first shaft 630. The axis of the first shaft is lower than the lower side of the first base 310. Multiple legs 304 are connected to the left end of the second base 320. The multiple legs 304 are spaced apart and are connected to the first shaft 630 in a cross manner with the legs 304 of the first base 310. The axis of the first shaft 630 is lower than the lower side of the second base 320.

[0075] like Figure 4 As shown, in use, the system induces the patient to passively perform plantar flexion movements. After a period of movement, the airbag deflates. Medical staff or caregivers then rotate the first base 310 counterclockwise around the first axis 630, and the second base 320 clockwise around the first axis 630, following the direction of the arrows in the diagram. Figure 5 When the first base 310 and the second base 320 are rotated by 60° respectively;

[0076] like Figure 6 When the first base 310 and the second base 320 are rotated 90° respectively, in this state, the first base 310 and the second base 320 are rotated together 180 degrees about the central pivot 610. In this state, with the central pivot 610 as the center and the outer edge of the first base 310 / second base 320 as the radius, the radius D1 is obtained. The distance between the two foot side plates 120 at the corresponding positions is L1, then L1>D1, to ensure that the first base 310 and the second base 320 can rotate smoothly; or, in this state, the highest position of the first base 310 and the second base 320 is lower than the corresponding bottom surface of the foot side plate 120, at which time the first base 310 and the second base 320 do not interfere with each other;

[0077] like Figure 7 As shown, after the central pivot 610 rotates 180°, the second base 320 rotates clockwise in the direction of the arrow, and the first base 310 rotates counterclockwise in the direction of the arrow until the position is changed. After the position is changed, the airbag is inflated. At this time, the support angle of the multiple elastic support parts 400 changes, with the toes higher and the heel lower. Inflation at this time prompts the patient to perform dorsiflexion movements.

[0078] like Figure 4 As shown, the upper sides of the first base 310 and the second base 320 both include a front plate 307 and a rear plate 308, and a recessed groove 330 is formed between the front plate 307 and the rear plate 308. After the inner airbag 420 and the outer rubber sleeve 410 are inflated, their upper surfaces are higher than the upper surfaces of the front plate 307 and the rear plate 308. After the inner airbag 420 and the outer rubber sleeve 410 are deflated and contracted, due to the contraction of the outer rubber sleeve 410 and the air pumping drive airbag and outer rubber sleeve 410 in the contracted state, they are located in the recessed groove 330 and can not exceed the upper surfaces of the front plate 307 and the rear plate 308.

[0079] like Figure 4 As shown, the front plate 307 and the rear plate 308 each have a sealing plate 309 extending towards the foot base 200. The sealing plate 309 extends to approximately half the width of the foot base 200. The position of the sealing plate 309 corresponds vertically to the support leg 304, meaning that the sealing plates 309 of the first base 310 and the second base 320 abut against each other. (See reference...) Figure 5 The foot base 200 has an avoidance groove 203 at the corresponding position of the sealing plate 309. The bottom surface of the avoidance groove 203 is an arc surface with the first shaft 630 as the center. The foot base 200 has a protrusion 204 between the front and rear avoidance grooves 203. The upper surface of the protrusion 204 is basically consistent with the upper surface of the front plate 307 and the rear plate 308. Through this structural design, the front plate 307 and the rear plate 308 can perfectly match the structure of the foot base 200 when sealing the sinking groove 330. The foot base 200 and the foot platform 300 can have good structural stability under pressure to meet the protection of the foot when the airbag is not inflated. In the later stage of rehabilitation, when the patient's foot is able to exert force, wearing this device can meet the patient's needs for standing and exerting force.

[0080] The first abutment 310 and the second abutment 320, which are arranged on both sides of the foot base 200, are equipped with multi-stage elastic support parts 400. The first abutment 310 and the second abutment 320 change positions with the foot base 200 as the center, which drives the elastic support parts 400 to change angles. The elastic support parts 400 can complete dorsiflexion and plantarflexion. In particular, based on the present invention, patients can complete dorsiflexion and plantarflexion movements in bed, thus advancing the patient's rehabilitation training time.

[0081] It also includes a toe elastic part 500, which is connected to the foot base 300 and communicates with the first air port 301. The toe elastic part 500 is located at the end of the foot base 300.

[0082] like Figure 3As shown, the toe elastic part 500 includes a toe airbag, which is connected to an inner airbag 420 with a relatively lower height. Specifically, it connects the front and rear sides of the inner airbag 420. The foot base 300 has a notch 302a at the opening of the first chamber 302 to facilitate communication between the toe airbag and the inner airbag 420. The toe airbag is connected to the first air port 301 through the inner airbag 420. When the inner airbag 420 is inflated, the toe airbag is inflated. When installing the outer rubber sleeve 410 corresponding to the inner airbag 420, the outer rubber sleeve 410 is first passed between the toe airbag and the inner airbag 420, and then the outer rubber sleeve 410 is connected to the foot base 300. In use, the toes can pass through the internal space of the toe airbag, and the toes can be limited by the inner airbag 420 at the end and the toe airbag.

[0083] The elastic support part 400 includes an outer rubber sleeve 410 and an inner airbag 420. The lower edge of the outer rubber sleeve 410 has a buckle 411. The inner wall of the first chamber 302 has a buckle groove 303. The inner airbag 420 is located in the first chamber 302. After the inner airbag 420 is inflated, it can abut against the buckle 411 and provide a clamping force to the buckle 411.

[0084] refer to Figure 8 and Figure 9 The lower airbag 422 of the inner airbag 420 is located in the first chamber 302, and the upper airbag 421 protrudes from the opening of the first chamber 302. The lower edge of the outer rubber sleeve 410 is a flap 411, which is provided on the four sides or two symmetrical sides of the outer rubber sleeve 410; Figure 9 As shown, the buckle 411 on the lower side of the outer sleeve 410 is a hollow sleeve formed by double-layer thermoplastic molding, or it can be a solid buckle 411 formed by thermoforming. The buckle 411 has a beveled surface at the fastening position to facilitate the buckle 411 entering the buckle groove 303. The buckle groove 303 is located on the inner wall of the first chamber 302. The buckle groove 303 has an opening groove and a beveled surface to match the buckle 411. The opening groove allows the buckle groove 303 to have a larger opening on the side that contacts the airbag. During installation, it is only necessary to ensure that the buckle groove 303 of the outer rubber sleeve 410 is located in the first chamber 302 and partially located in the buckle groove 303. When the airbag is inflated, the lower airbag 422 contacts the lower surface of the flip buckle 411, pressing the flip buckle 411 upward. The side of the upper airbag 421 contacts the inner side of the flip buckle 411, pressing the flip buckle 411 into the buckle groove 303, thereby completing the final engagement between the buckle groove 303 and the flip buckle 411.

[0085] By setting an inner airbag 420 and a detachable outer rubber sleeve 410, on the one hand, the outer rubber sleeve 410 can play an auxiliary contraction role when the airbag is deflating; on the other hand, the detachable outer rubber sleeve 410 can provide replacement and cleaning conditions to ensure the cleanliness of the equipment; in particular, by having the flip buckle 411 of the outer rubber sleeve 410 cooperate with the buckle groove 303 of the foot base 300, when the inner airbag 420 is inflated, the auxiliary flip buckle 411 and the buckle groove 303 are fully engaged, which improves the ease of assembly of the outer rubber sleeve 410.

[0086] The air inlet of the first air inlet 301 is located on the end face of the first base 310 / second base 320 adjacent to the foot base 200, and the air inlet of the second air inlet 201 is located on the end face of the foot base 200 adjacent to the foot side plate 120.

[0087] By cooperating with the first air inlet 301 and the second air inlet 201 in the foot base 200 and the foot platform 300, the first platform 310 and the second platform 320 can be inflated through fixed airways regardless of their position. The airbag, the foot platform 300 and the overall airway form a perfect fit and there will be no interference.

[0088] The first base 310 / second base 320 is provided with a plurality of first chambers 302. The number of first chambers 302 is adapted to the number of multi-stage elastic support parts 400 connected to the first base 310 / second base 320. The plurality of first chambers 302 of the first base 310 / second base 320 are interconnected.

[0089] refer to Figure 5 , 8 And 9, for reference Figure 8 As shown, the inner side of the foot base 200 is the second chamber 202, and the rear side of the foot base 200 is the second air port 201. The second air port 201 is connected to an air pump for inflating and deflating the inner air bladder 420. Two air outlets are provided on each of the left and right sides of the second chamber 202, symmetrically arranged around the central pivot 610. First air ports 301 are provided on the sides of the first base 310 and the second base 320 adjacent to the foot base 200. The positions of the first air ports 301 correspond to and communicate with the air outlets of the second chamber 202. A rubber stopper 730 is installed, which serves as an airflow channel. The rubber stopper 730 closes the gap between the first base 310 / second base 320 and the foot base 200. The first base 310 and the second base 320 are each provided with two first chambers 302. A first air port 301 passes through the foot base 300 and connects to the first chambers 302. The two first chambers 302 are interconnected. Each chamber contains an inner air bladder 420, and the inner air bladders 420 are interconnected. Furthermore, the inner air bladder 420 adjacent to the first air port 301 is connected to the first air port 301.

[0090] The foot side plate 120 has an air hole at the corresponding position of the second air port 201, and a valve is installed thereon. The valve is connected to or communicates with the second air port 201 to inflate the second air port 201. Specifically, the lateral foot side plate 120 used by the patient has an air hole, that is... Figure 8 Air vent 120 on the middle and rear side of the foot plate.

[0091] The air pump inflates the second chamber 202 through the second air hole. The air from the second chamber 202 enters the first air port 301 of the first base 310 / second base 320 through the air outlets on the left and right sides of the foot base 200. The air then enters the inner air bladder 420 and the toe air bladder, causing the inner air bladder 420 and the toe air bladder to inflate.

[0092] A frame 130 is connected between the foot side plates 120. The foot base 300 has a first slot 305 between the multi-stage elastic support parts 400. The frame 130 is adapted to the first slot 305, and the upper surface of the frame 130 is adapted to the upper surface of the foot base 300.

[0093] like Figure 7 As shown, the skeleton 130 is located between the foot side plates 120. The left and right end faces of the foot side plates 120 are both arcs centered on the first shaft 630. First slots 305 are opened on the upper sides of the front plate 307 and rear plate 308 of the first base 310 / second base 320. The first slots 305 penetrate the front plate 307 and rear plate 308. The left and right end faces of the first slots 305 are both arcs centered on the first shaft 630, thus ensuring good sealing in the sinking groove 330. Figure 4 As shown, the frame 130 is located between two adjacent elastic support parts 400, and the upper side of the frame 130 is on the same plane as the upper side of the front plate 307 / rear plate 308.

[0094] The inner end face of the foot side plate 120 is provided with a positioning element 140, and the upper end face of the foot base 300 is also provided with a second groove 306, which is adapted to the positioning element 140.

[0095] like Figure 4 As shown, a second slot 306 is provided at the corresponding position of the first slot 305. The second slot 306 extends downward from the bottom surface of the first slot 305, and both the left and right end faces of the second slot 306 are arcs centered on the first shaft 630. Figure 8 As shown, the positioning component 140 is fixed to the inner end face of the foot side plate 120 and is located on the lower side of the frame 130. The positioning component 140 includes an outer sheath and a magnetic component. The magnetic component is fixed to the foot side plate 120 and protected by the outer sheath. Correspondingly, a metal plate is fixed to the second slot 306 to facilitate the positioning of the first base 310 and the second base 320.

[0096] It also includes bolts 710 and bolt holes 720 that penetrate the foot base 200 and the foot platform 300. For example... Figure 3 As shown, bolt holes 720 penetrate the foot base 300 and foot base 200, and bolts 710 are inserted into bolt holes 720 to fix the first base 310, foot base 200 and second base 320. Bolts 710 can be fixed by using nuts or threads, or by using external fasteners 740 to fix bolts 710 to the foot base 300. In some cases, fixing components can also be provided on the foot side plate 120 and the foot base 300 for mutual detachable fixing.

[0097] like Figure 10 As shown, it also includes a cover plate 800, which can cover the opening of the sinking groove 330, house the outer rubber sleeve 410 and the inner airbag 420 in the sinking groove 330, and the bottom surface of the cover plate 800 abuts against the protrusion 204 of the frame 130 and the foot base 200, so that the cover plate 800 has a sufficiently stable support structure.

[0098] In the early postoperative period, or when it is inconvenient for patients to perform rehabilitation training, the patient lies on the bed with their legs flat on the bed or suspended on an auxiliary frame. The patient's legs are connected by straps, and the patient's feet are placed against the cover plate 80°, so that the feet and legs are basically kept at 90°, which helps to prevent the patient's feet from dropping.

[0099] During the passive rehabilitation phase, the patient lies on the bed with their legs flat on the bed or suspended from an auxiliary frame. The patient's legs are connected by straps. The cover plate 800 is removed, and the second air port 201 is connected to the air pump. The air pump inputs a preset pressure into the inner air bag 420. The inner air bag 420 is repeatedly inflated and deflated within a unit of time, and the patient repeatedly performs passive plantar flexion movements within a unit of time. After the plantar flexion movements within a unit of time, medical staff or caregivers can flip and switch the positions of the first base 310 and the second base 320. Then, the inner air bag 420 is repeatedly inflated and deflated by the air pump within a unit of time, and the patient repeatedly performs passive dorsiflexion movements within a unit of time.

[0100] In the later stages of the patient's recovery, when the patient is able to actively exert force, the air pump inflates the inner air bladder 420, and the valve is closed to keep the pressure in the inner air bladder 420 at a stable value. After the patient puts on the strap, they can stand or lie on the bed with their lower legs in a basically vertical position. They can actively exert force with their toes to plantarflex over elastic potential energy, or exert force with their heels to dorsiflex over elastic potential energy.

[0101] After swapping the positions of the first abutment 310 and the second abutment 320, the toes actively exert force to plantarflex over the elastic potential energy, or the heel exerts force to dorsiflex over the elastic potential energy. In both states, the patient can overcome the elastic potential energy through plantarflexion and dorsiflexion. The elastic potential energy feedback thresholds received by dorsiflexion and plantarflexion are different in different states, which can help the patient perform load training and speed up the recovery process.

[0102] During the patient's active exertion phase, the pressure of the air pump entering the inner air bladder 420 can be controlled to adjust the elastic potential energy of the inner air bladder 420. When the patient is training to exert active force in the early stage, a small pressure can be injected into the air bladder, and a larger pressure can be injected in the later stage.

[0103] It should be emphasized that the embodiments described in this invention are illustrative and not limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A rehabilitation training device for the lower limbs, characterized in that, include: The boot body (100) includes a leg body (110) and a foot side plate (120), the foot side plate (120) being connected to the leg body (110) and the foot side plate (120) being disposed opposite to each other to accommodate the foot; Foot base (200), the foot base (200) being connected to the foot side plate (120); Foot base (300), the foot base (300) is connected to the foot base (200), the foot base (300) extends in the direction from heel to toe, the foot base (300) is provided with a first air vent (301) and an internal first chamber (302); A multi-stage elastic support part (400) is arranged sequentially from heel to toe. The elastic support part (400) is connected to the first chamber (302) of the foot base (300). The contact surface between the multi-stage elastic support part (400) and the foot is set at an angle in the direction from heel to toe. After inflation, the multi-stage elastic support part (400) supports the foot at an angle. The foot base (200) is constructed with a second air vent (201) and an internal second chamber (202); the foot platform (300) includes a first platform (310) and a second platform (320), both the first platform (310) and the second platform (320) are constructed with a first air vent (301) and a first chamber (302), the first air vent (301) communicates with the second chamber (202), and the first platform (310) and the second platform (320) are arranged interchangeably on both sides of the foot base (200).

2. The rehabilitation training device for the lower limbs according to claim 1, characterized in that: It also includes a toe elastic part (500), which is connected to the foot base (300) and communicates with the first air port (301). The toe elastic part (500) is located at the end of the foot base (300).

3. The rehabilitation training device for the lower limbs according to claim 1, characterized in that: The elastic support (400) includes an outer rubber sleeve (410) and an inner airbag (420). The lower edge of the outer rubber sleeve (410) is provided with a buckle (411). The inner wall of the first chamber (302) is provided with a buckle groove (303). The inner airbag (420) is located in the first chamber (302). After the inner airbag (420) is inflated, it can abut against the buckle (411) and provide a clamping force to the buckle (411).

4. A rehabilitation training device for the lower limbs according to claim 1, characterized in that: The foot base (200) is rotatably connected to a central shaft (600) on its lower side. The central shaft (600) includes a first shaft (630) extending between adjacent foot side plates (120). The first base (310) and the second base (320) are each provided with a support leg (304) in the direction close to the first shaft (630). The support leg (304) is rotatably connected to the first shaft (630). The first base (310) and the second base (320) rotate in opposite directions about the first shaft (630).

5. A rehabilitation training device for the lower limbs according to claim 1, characterized in that: The air inlet of the first air inlet (301) is located on the end face of the first base (310) / second base (320) adjacent to the foot base (200), and the air inlet of the second air inlet (201) is located on the end face of the foot base (200) adjacent to the foot side plate (120).

6. A rehabilitation training device for the lower limbs according to claim 5, characterized in that: The first base (310) / second base (320) is provided with a plurality of first chambers (302), the number of first chambers (302) is adapted to the number of the multi-stage elastic support parts (400) connected to the first base (310) / second base (320), and the plurality of first chambers (302) of the first base (310) / second base (320) are connected to each other.

7. A rehabilitation training device for the lower limbs according to any one of claims 1-6, characterized in that: A frame (130) is connected between the foot side plates (120). The foot base (300) has a first slot (305) between the multi-stage elastic support parts (400). The frame (130) is adapted to the first slot (305). The upper surface of the frame (130) is adapted to the upper surface of the foot base (300).

8. A rehabilitation training device for the lower limbs according to claim 7, characterized in that: The inner end face of the foot side plate (120) is provided with a positioning element (140), and the upper end face of the foot base (300) is also provided with a second groove (306), which is adapted to the positioning element (140).

9. A rehabilitation training device for the lower limbs according to claim 8, characterized in that: It also includes bolts (710) and bolt holes (720) penetrating the foot base (200) and foot platform (300).

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