Knee joint trainer

Abstract

The utility model belongs to the field of rehabilitation instruments, and particularly relates to a knee joint training device which comprises a supporting part, a plurality of roll shafts rotationally arranged on the supporting part, a transmission belt arranged on the roll shafts in a transmission mode and a foot fixing part arranged on the transmission belt. When a patient is in a supine position or a sitting position, during use, the bottoms of feet are placed on the transmission belts or the feet penetrate through the foot fixing parts to fix the feet, the patient bends and stretches the knees to enable the transmission belts to do annular movement, the muscle force and the joint movement range of the patient are increased, the patient can do active movement training, and the knee joint training device is simple in structure, convenient to use and high in practicability. The device is easy to carry, small in occupied area and convenient to use, and joints can move in a full range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of rehabilitation apparatus, concretely relates to a knee joint trainer. BACKGROUND

[0002] Knee joint diseases, such as osteoarthritis, are a common chronic disease that can cause joint pain, swelling and limited mobility. With the intensification of population aging, the number of patients with knee joint diseases is increasing year by year, which leads to the growing demand for knee replacement surgery. After knee replacement surgery, patients need to go through a recovery period. This period may include pain management, recovery of joint mobility, enhancement of muscle strength, and reconstruction of walking and daily activity ability. Rehabilitation training is crucial for patients after knee replacement surgery. Proper rehabilitation training can help reduce postoperative complications such as joint stiffness and muscle atrophy, promote the secretion and absorption of synovial fluid, accelerate the repair of articular cartilage, and help patients recover normal life and work ability.

[0003] Rehabilitation training usually includes physical therapy, occupational therapy and exercise therapy. These training may include joint mobility training, muscle strength training, balance training, functional activity training, etc. Most of the existing knee joint trainers are large in size, heavy and not suitable for home use. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a knee joint trainer that is easy to carry, small in floor space and convenient to use.

[0005] The utility model provides a knee joint trainer, which comprises a supporting part, a plurality of roller shafts rotatably arranged on the supporting part, a transmission belt rotatably arranged on the roller shafts, and a foot fixing part arranged on the transmission belt.

[0006] Optionally, a rotating shaft is arranged at the heel of the foot fixing part, and the foot fixing part is rotatably connected to the transmission belt through the rotating shaft.

[0007] Optionally, a plurality of insertion holes are arranged on the transmission belt, and a plurality of insertion buckles are fixedly arranged on the rotating shaft, so that the rotating shaft and the transmission belt are detachably connected through the insertion holes and the insertion buckles.

[0008] Optionally, the knee joint trainer comprises a magic tape, and the foot fixing part and the transmission belt are connected through the magic tape.

[0009] Optionally, a supporting plate is arranged at the bottom of the foot fixing part, a rotating shaft is rotatably connected to the supporting plate, the foot fixing part is rotatably connected to the supporting plate through the rotating shaft, and one part of the magic tape is arranged at the bottom of the supporting plate, and the other part is arranged on the transmission belt.

[0010] Optionally, the loop side of the hook and loop fastener covers the entire surface of the transmission belt, and the hook side of the hook and loop fastener is located at the bottom of the support plate.

[0011] Optionally, a portion of the Velcro is located at the heel of the foot fixing part, and another portion is located on the drive belt.

[0012] Optionally, the foot fixing part includes a bent semi-wrap part and a strap disposed on the bent semi-wrap part.

[0013] Optionally, the two ends of the strap can be detachably connected.

[0014] Optionally, a drive motor is provided on the support, and the output end of the drive motor is connected to one of the roller shafts in a transmission connection.

[0015] The beneficial effects of this utility model are that when the patient is in a supine or sitting position, the sole of the foot is placed on the transmission belt or the foot is fixed with a foot fixing part to fix the foot. The patient makes knee flexion and extension movements to make the transmission belt make circular movements, thereby increasing the patient's muscle strength and joint range of motion, and enabling the patient to actively exercise. This knee joint trainer has a simple structure, is easy to carry, occupies little space, is convenient to use, and allows the joint to move in a full range of motion.

[0016] The support is equipped with a drive motor, the output of which is connected to one of the roller shafts. By controlling the forward and reverse rotation of the drive motor, the transmission belt can be driven to straighten and bend the knee joint, allowing the patient to undergo passive exercise training. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of a knee joint trainer according to an embodiment of the present invention;

[0018] Fig. 2 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0019] Fig. 3 This is a schematic diagram of the structure of a knee joint trainer according to another embodiment of the present invention.

[0020] In the figure: 100, support part; 110, roller; 120, transmission belt; 121, rough surface; 130, drive motor; 200, part fixing part; 210, rotating shaft; 211, buckle; 220, strap; 230, support plate; 240, hook surface. Detailed Implementation

[0021] like Figs. 1-3 As shown, the present invention provides a knee joint trainer, including a support part 100, a plurality of rollers 110 rotatably disposed on the support part 100, a transmission belt 120 transmission disposed on the rollers 110, and a foot fixing part 200 disposed on the transmission belt 120.

[0022] Compared with the prior art, the knee joint trainer provided by the utility model, when in use, the patient lies on his back or sits on a chair, places the foot bottom on the transmission belt 120 or wears the foot fixing part 200 on the foot, so as to fix the foot, makes the transmission belt 120 do circular motion by the action of bending and stretching the knee of the patient, so as to increase the muscle strength and joint range of motion of the patient, and makes the patient do active exercise training, the knee joint trainer is simple in structure, easy to carry, small in land occupation, convenient to use, and the joint can do full-range motion.

[0023] It should be noted that the patient can lie on the ground in the supine position, and the patient can sit on a chair in the sitting position, and in some cases, the patient can also stand and use, and only one leg is exercised.

[0024] In the embodiment, one or two foot fixing parts 200 can be arranged on the transmission belt 120, and the two foot fixing parts 200 are side by side.

[0025] In one embodiment, the heel of the foot fixing part 200 is provided with a rotating shaft 210, and the foot fixing part 200 is rotationally matched with the transmission belt 120 through the rotating shaft 210. Specifically, the heel of the foot fixing part 200 is provided with a sleeve ring, the rotating shaft 210 is sleeved in the sleeve ring, the middle section of the rotating shaft 210 is small in diameter and will not come out of the foot fixing part 200, and the two ends of the rotating shaft 210 are fixedly connected with the transmission belt 120, so that the foot of the patient has a larger activity space, not only the comfort is improved, but also the flexion and extension exercise of the ankle joint can be performed.

[0026] Further, a plurality of insertion holes are formed in the transmission belt 120, and a plurality of insertion buckles 211 are fixedly arranged on the rotating shaft 210, and the rotating shaft 210 and the transmission belt 120 are detachably connected through the cooperation of the insertion holes and the insertion buckles 211. In this way, the foot fixing part 200 is worn first, and then the transmission belt 120 is connected, and the use convenience is improved.

[0027] In another embodiment, the knee joint trainer comprises a magic tape, and the foot fixing part 200 and the transmission belt 120 are connected through the magic tape, so that the foot fixing part 200 is worn first, and then the transmission belt 120 is connected, the use convenience is improved, and the magic tape is easier to assemble.

[0028] In one embodiment, the bottom of the foot fixing part 200 is provided with a support plate 230, a rotating shaft 210 is rotatably connected to the support plate 230, the foot fixing part 200 is rotatably connected to the support plate 230 through the rotating shaft 210, and a part of the Velcro is arranged on the bottom of the support plate 230 and another part is arranged on the transmission belt 120. Specifically, the support plate 230 is a rectangular or oval flat plate, which is made of plastic or metal, a part of the Velcro is fixed on the bottom of the support plate 230 by adhesion, another part of the Velcro is fixed on the surface of the transmission belt 120 by adhesion, and the two ends of the rotating shaft 210 are fixed on the support plate 230. While ensuring comfort and performing flexion and extension exercise of the ankle joint, the support plate 230 provides a larger acting surface, and the stability during use is higher. In addition, the patient can first wear the foot fixing part 200, and then connect the foot fixing part 200 to the transmission belt 120 through the Velcro, and the position of the foot fixing part 200 connected to the transmission belt 120 can be adjusted at will, which can adapt to the needs of different patients.

[0029] In one embodiment, the hook surface 240 of the Velcro is arranged on the bottom of the support plate 230, and the loop surface 121 of the Velcro is arranged on the surface of the transmission belt 120.

[0030] In one embodiment, a part of the Velcro is arranged at the heel of the foot fixing part 200, and another part is arranged on the transmission belt 120. In this way, the patient can first wear the foot fixing part 200, and then connect the foot fixing part 200 to the transmission belt 120 through the Velcro, and the position of the foot fixing part 200 connected to the transmission belt 120 can be adjusted at will, and in the absence of the rotating shaft 210, the foot fixing part 200 can also rotate relative to the transmission belt to a certain extent.

[0031] In one embodiment, the foot fixing part 200 includes a bent half wrapping part and a strap 220 arranged on the bent half wrapping part, which is used to firmly fix the foot fixing part 200 with the foot.

[0032] In one embodiment, the two ends of the strap 220 are detachably connected, which can be snap connection or Velcro connection.

[0033] In one embodiment, the support part 100 is provided with a driving motor 130, the output end of the driving motor 130 is in transmission connection with one of the roller shafts 110, the transmission belt 120 can be driven to straighten and bend the knee joint by controlling the driving motor 130 to rotate forward and reverse, so that the patient is passively trained. The output end of the driving motor 130 is fixedly connected with a driving belt pulley, the end of one of the roller shafts 110 is fixedly connected with a driven belt pulley, the driving belt pulley and the driven belt pulley are in transmission connection through a belt, and the driving motor 130 is preferably a servo motor, and can also be a stepper motor.

[0034] It should be understood by those of ordinary skill in the art that the above discussion of any of the embodiments is merely exemplary in nature and not intended to imply limitations on the scope of the application; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes as described above of different aspects of one or more embodiments of the application, which are not provided in details for the sake of brevity.

[0035] One or more embodiments of the present application are intended to cover all such alternatives, modifications, and variations as come within the scope of the broadest possible interpretation of the application. Accordingly, any and all such alternations, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A knee joint trainer, characterized in that, The application relates to a foot fixing device, which comprises a support part (100), a plurality of roller shafts (110) rotatably arranged on the support part (100), a transmission belt (120) arranged on the roller shafts (110) and a foot fixing part (200) arranged on the transmission belt (120).

2. The knee exerciser according to claim 1, wherein The heel of the foot fixing part (200) is provided with a rotating shaft (210), and the foot fixing part (200) is rotatably matched with the transmission belt (120) through the rotating shaft (210).

3. The knee trainer of claim 2, wherein, A plurality of insertion holes are formed in the transmission belt (120), and a plurality of insertion buckles (211) are fixedly arranged on the rotating shaft (210), so that the rotating shaft (210) and the transmission belt (120) are detachably connected through the matching of the insertion holes and the insertion buckles (211).

4. The knee trainer of claim 1, wherein, The foot fixing part (200) and the transmission belt (120) are connected through Velcro.

5. The knee trainer of claim 4, wherein, The bottom of the foot fixing part (200) is provided with a support plate (230), the rotating shaft (210) is rotatably connected to the support plate (230), the foot fixing part (200) is rotatably matched with the support plate (230) through the rotating shaft (210), and one part of the Velcro is arranged at the bottom of the support plate (230) and the other part is arranged on the transmission belt (120).

6. The knee trainer of claim 5, wherein, The hook surface (240) of the Velcro is arranged at the bottom of the support plate (230).

7. The knee trainer of claim 4, wherein, One part of the Velcro is arranged at the heel of the foot fixing part (200) and the other part is arranged on the transmission belt (120).

8. The knee trainer of claim 1, wherein, The foot fixing part (200) comprises a bent half-wrapping part and a belt (220) arranged on the bent half-wrapping part.

9. The knee trainer of claim 8, wherein, The two ends of the belt (220) are detachably connected.

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