Lower limb knee joint rehabilitation apparatus

Abstract

The utility model discloses a lower limb knee joint rehabilitation apparatus, which relates to the technical field of rehabilitation devices and comprises a foot fixer, a roller device is arranged on the bottom surface of the foot fixer, nylon woven belts are arranged on two sides of the foot fixer, and one ends, far away from the foot fixer, of the two nylon woven belts are connected through a handheld component; a foot bandage is arranged on the top face of the foot fixator, one end of the foot bandage is fixed to the foot fixator, and the other end of the foot bandage is movably connected to the other side of the foot fixator through a hook-and-loop fastener. According to the lower limb knee joint rehabilitation device provided by the utility model, by arranging the adjustable roller device, the rehabilitation device can meet the requirement that a patient can exercise knee joints in a lying position or a sitting position, the patient can complete the exercise action of the knee joints without using too large strength, and in addition, the knee joints can be assisted to bend in a hand pulling manner; in addition, the device is small in size, does not occupy space, and is convenient to use on a bed.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation devices, in particular to a lower limb knee joint rehabilitation device. Background Art

[0002] It is known that any knee joint disease will first cause atrophy of the quadriceps femoris. The atrophy of this muscle will make the knee joint lose protection and become unstable, which can aggravate the symptoms and is not conducive to the rehabilitation of the knee joint. The isotonic training methods of the prior art mostly use bedside knee extension training or single knee flexion quadriceps femoris isotonic contraction training on the bed. The disadvantage of the static contraction and relaxation exercise of the quadriceps femoris is that it mainly enhances static muscle strength, has significant angle specificity, and is only effective for enhancing muscle strength within a range of about 20 degrees near the exercise angle. Single knee flexion quadriceps femoris isotonic contraction training on the bed, due to the use of the same angle for knee flexion, also has obvious limitations, and bedside knee extension training cannot be implemented for patients who fail to take an upright position, so as to limit the further strengthening of quadriceps femoris functional exercise, postpone the time for bedridden patients to get out of bed for exercise, and have a considerable impact on the early rehabilitation of patients. Generally speaking, the traditional method has various disadvantages such as long recovery time and low compliance.

[0003] The existing knee joint rehabilitation devices are all provided with rollers at the lower ends to reduce the friction between the rehabilitation device and the ground or bed during knee flexion, thereby saving effort in the knee flexion movement. However, the angles of the rollers on the existing knee joint rehabilitation devices cannot be adjusted. When the patient needs to switch between a sitting position and a lying position, the rollers cannot contact the ground or the bed, thereby reducing the applicability of the knee joint rehabilitation device. Therefore, in response to the above phenomenon, there is an urgent need to design and produce a lower limb knee joint rehabilitation device to meet the needs of actual use. Utility Model Content

[0004] The utility model provides a lower limb knee joint rehabilitation device, which solves the technical problems in the background technology.

[0005] In order to solve the above technical problems, the utility model provides a lower limb knee joint rehabilitation device, including a foot fixer, a roller device is provided on the bottom surface of the foot fixer, nylon braided belts are provided on both sides of the foot fixer, and the ends of the two nylon braided belts away from the foot fixer are connected by a hand grip assembly;

[0006] A foot strap is arranged on the top surface of the foot fixer, one end of the foot strap is fixed on the foot fixer, and the other end is movably connected to the other side of the foot fixer through a Velcro.

[0007] Preferably, the roller device includes a semicircular plate symmetrically arranged on both sides of the bottom surface of the foot fixer, the middle part of the semicircular plate is rotatably connected to a bracket through a second rotating shaft, and the movable ends of the brackets on both sides are connected to rollers through a first rotating shaft; a plurality of limit holes distributed in a fan shape are provided on the edge of the semicircular plate, and a limit pin matching the limit hole is provided in the middle part of the bracket, the bracket is fixed by inserting the limit pin into the limit hole, and the roller support angle can be adjusted by inserting the limit pin into different limit holes.

[0008] Preferably, the hand-grip assembly includes a grip rod, and storage cylinders are fixedly installed on both left and right ends of the grip rod, and the interior of the storage cylinder is rotatably connected to a winding shaft, one end of the nylon braided belt is fixedly wound around the winding shaft, and a rectangular groove is provided inside the winding shaft, and a turning handle is provided on the top of the storage cylinder, and the lower end of the turning handle is movably inserted in the rectangular groove, and a card slot is provided on the top of the storage cylinder.

[0009] Preferably, the outer axis of the slot is annularly distributed with six notches, and the two ends of the top of the turning handle are respectively engaged in two symmetrical notches, thereby fixing the turning handle and the winding shaft.

[0010] Preferably, the cross-section of the lower end of the turning handle is square.

[0011] Compared with the related art, the lower limb knee joint rehabilitation device provided by the utility model has the following beneficial effects:

[0012] The utility model provides a lower limb knee joint rehabilitation device. By arranging an adjustable roller device, the rehabilitation device can meet the needs of patients to exercise the knee joints in a lying position or a sitting position, and the patients do not need to use too much strength to complete the knee joint exercise movements. In addition, the knee joint bending movement can be assisted by hand pulling, thereby reducing the difficulty of knee joint bending exercise. In addition, the device is small in size, does not take up space, and is convenient to use in bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a right oblique view of the utility model;

[0015] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the hand grip assembly of the utility model;

[0017] Figure 5 It is a cross-sectional view of the hand grip assembly of the present utility model.

[0018] Numbers in the figure: 1. Foot fixer; 2. Roller device; 3. Nylon braided belt; 4. Foot strap; 5. Hand grip assembly; 21. Roller; 22. Bracket; 23. Rotating shaft one; 24. Limit pin; 25. Rotating shaft two; 26. Limit hole; 27. Semicircular plate; 51. Grip; 52. Storage tube; 53. Turning handle; 54. Slot; 55. Through hole; 56. Reel; 57. Rectangular slot. DETAILED DESCRIPTION

[0019] Example, by Figure 1-5 A lower limb knee joint rehabilitation device is provided, comprising a foot fixer 1, a roller device 2 is provided on the bottom surface of the foot fixer 1, nylon braided belts 3 are provided on both sides of the foot fixer 1, and the ends of the two nylon braided belts 3 away from the foot fixer 1 are connected by a hand grip assembly 5;

[0020] A foot strap 4 is provided on the top surface of the foot fixer 1 , one end of the foot strap 4 is fixed on the foot fixer 1 , and the other end is movably connected to the other side of the foot fixer 1 through Velcro.

[0021] The roller device 2 includes a semicircular plate 27 symmetrically arranged on both sides of the bottom surface of the foot fixer 1, the middle part of the semicircular plate 27 is rotatably connected to the bracket 22 through the second rotating shaft 25, and the movable ends of the brackets 22 on both sides are connected to the rollers 21 through the first rotating shaft 23; the edge of the semicircular plate 27 is provided with a plurality of limiting holes 26 distributed in a fan shape, and the middle part of the bracket 22 is provided with a limiting pin 24 matching the limiting hole 26, and the bracket 22 is fixed by inserting the limiting pin 24 into the limiting hole 26, and the limiting pin 24 can be inserted into different limiting holes 26 to adjust the support angle of the roller 21.

[0022] The hand-grip assembly 5 includes a grip rod 51, and storage tubes 52 are fixedly installed on both ends of the grip rod 51. The storage tube 52 is rotatably connected to a winding shaft 56. One end of the nylon braided belt 3 is fixedly wound around the winding shaft 56. A rectangular groove 57 is provided inside the winding shaft 56. A turning handle 55 is provided on the top of the storage tube 52. The lower end of the turning handle 55 is movably inserted in the rectangular groove 57. A card slot 54 is provided on the top of the storage tube 52.

[0023] The outer axis of the slot 54 is provided with six notches in an annular shape, and the two ends of the top of the turning handle 55 are respectively engaged in two symmetrical notches, thereby fixing the turning handle 55 and the winding shaft 56.

[0024] The cross section of the lower end of the turning handle 55 is square.

[0025] Working principle: When the patient lies on the bed, first adjust the roller device 2 to a position parallel to the foot fixer 1, then put the foot into the foot fixer 1, hold the hand grip assembly 5 with the hand, and exercise the knee joint by pedaling or pulling with the hand. The foot fixer 1 is placed on the bed through the roller device 2 to play a supporting role and can roll back and forth. The patient does not need to use too much strength to complete the knee joint exercise. In addition, the knee joint bending movement can be assisted by pulling with the hand, reducing the difficulty of knee joint bending exercise.

[0026] When the patient is sitting, the roller device 2 is adjusted to a position perpendicular to the foot fixer 1, and then the foot is put into the foot fixer 1. The hand grip assembly 5 is held with the hand to exercise the knee joint by hand pulling. The foot fixer 1 rolls back and forth between the roller device 2 and the ground to achieve the purpose of flexion and extension of the knee joint.

[0027] At the same time, the handle 53 can be pulled out and rotated to rotate the winding shaft 56, thereby winding the nylon braided belt 3 onto the surface of the winding shaft 56 or releasing the nylon braided belt 3 from the surface of the winding shaft 56, so that the length of the nylon braided belt 3 can be adjusted. After adjusting the length, the handle 53 is inserted into the notch of the card slot 54 to fix the winding shaft 56 so that the device can be used by different people.

Claims

1. A lower limb knee joint rehabilitation device, comprising a foot fixator (1), characterized in that: The bottom surface of the foot fixer (1) is provided with a roller device (2), and nylon braided belts (3) are provided on both sides of the foot fixer (1), and the ends of the two nylon braided belts (3) away from the foot fixer (1) are connected by a hand grip assembly (5); A foot strap (4) is provided on the top surface of the foot fixer (1); one end of the foot strap (4) is fixed to the foot fixer (1), and the other end is movably connected to the other side of the foot fixer (1) via Velcro.

2. A lower limb knee joint rehabilitation device according to claim 1, characterized in that: The roller device (2) comprises a semicircular plate (27) symmetrically arranged on both sides of the bottom surface of the foot fixer (1); the middle part of the semicircular plate (27) is rotatably connected to the bracket (22) through a second rotating shaft (25); the movable ends of the brackets (22) on both sides are connected to the rollers (21) through a first rotating shaft (23); the edge of the semicircular plate (27) is provided with a plurality of limiting holes (26) distributed in a fan shape, and the middle part of the bracket (22) is provided with a limiting pin (24) matching the limiting hole (26); the bracket (22) is fixed by inserting the limiting pin (24) into the limiting hole (26); and the limiting pin (24) can be inserted into different limiting holes (26) to adjust the support angle of the roller (21).

3. A lower limb knee joint rehabilitation device according to claim 1, characterized in that: The hand-grip assembly (5) comprises a grip rod (51), and a storage cylinder (52) is fixedly installed at both left and right ends of the grip rod (51), and a winding shaft (56) is rotatably connected inside the storage cylinder (52). One end of the nylon braided belt (3) is fixedly wound around the winding shaft (56), and a rectangular groove (57) is provided inside the winding shaft (56). A turning handle (55) is provided at the top of the storage cylinder (52), and the lower end of the turning handle (55) is movably inserted into the rectangular groove (57). A card slot (54) is provided at the top of the storage cylinder (52).

4. A lower limb knee joint rehabilitation device according to claim 3, characterized in that: The outer axis of the clamping slot (54) is annularly distributed with six notches, and the top two ends of the turning handle (55) are respectively clamped in two symmetrical notches, thereby fixing the turning handle (55) and the winding shaft (56).

5. A lower limb knee joint rehabilitation device according to claim 4, characterized in that: The cross section of the lower end of the turning handle (55) is square.

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