Progressive traction training device for knee joint stiffness

Abstract

The utility model provides a progressive traction training device for knee joint stiffness, and belongs to the technical field of medical auxiliary equipment, the progressive traction training device comprises a lifting frame and a bed board, the bottom surface of the bed board is provided with a pull-back piece, the pull-back piece comprises a vertical rod and an elastic rope, the vertical rod is vertically arranged on the bottom surface of the bed board, and the pull-back rope is bound on the vertical rod; and the load bearing piece is bound on the ankle of a human body. The effect of driving muscles and ligaments around the knee joint to move in the vertical direction and the horizontal direction is achieved by suspending the shanks of a patient and driving the load bearing piece and the elastic rope to move, the stimulation amount of the muscles and ligaments around the knee joint is increased by repeatedly kicking the legs of the patient, and the effect of preventing severe stiffness of the muscles and ligaments around the knee joint is achieved. The muscle and ligament stretching amplitude around the knee joint is increased, and the rehabilitation training effect can be obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary equipment, and particularly relates to a progressive traction training device for knee joint stiffness. Background Art

[0002] The knee joint is the largest and most complex joint in the human body and is a trochlear joint. Traumatic knee injuries, such as sprains, fractures, or meniscus tears, or damage or weakening of the muscles and ligaments surrounding the knee, can lead to knee stiffness when these structures are damaged or diseased.

[0003] For example, the invention patent with patent number CN202010898347.8 discloses a rehabilitation training device for stiff knee joints, including a bottom pad, a thigh support pad hinged in the middle of the upper end surface of the bottom pad, a dial fixed to the upper end of the side of the thigh support pad, and a calf training device movably connected to one side of the top of the thigh support pad, and an adjustable support mechanism is provided under the calf training device. A rehabilitation training device for stiff knee joints of the present invention adjusts the angle and height of the thigh support pad according to the patient's condition, and at the same time selects a weight block suitable for the patient's weight and connects it to both ends of the weight-bearing connecting rod. The patient lies on his back on the bottom pad, and his front calf is placed on the calf training device and bound by a restraint belt. The patient lifts his calf or relies on his own weight to lower it, so as to achieve the up and down swing of his calf, thereby achieving rehabilitation training for the knee joint. The device is simple to operate, and the patient can complete the training independently at home and flexibly adjust it according to the situation.

[0004] However, current clinical knee joint training devices primarily use continuous passive motion machines or related training devices, primarily using a slow, steady-speed approach. These devices are primarily designed for postoperative rehabilitation training, aiming to prevent adhesions in the knee joint, ligaments, and muscles, and reduce joint stiffness. However, rehabilitation training is less effective for patients whose knee joints are in good condition but whose surrounding muscles and ligaments are already severely stiff. Utility Model Content

[0005] Based on this, the utility model provides a progressive traction training device for knee joint stiffness to solve the technical problem in the prior art that the knee joint is in good condition but the muscles and ligaments around the knee joint have become severely stiff, resulting in poor rehabilitation training effect.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A progressive traction training device for knee joint stiffness includes a lifting frame and a bed board. The bottom surface of the bed board is provided with a pull-back member, which includes a vertical rod and an elastic rope. The vertical rod is vertically provided on the bottom surface of the bed board, and the elastic rope is tied to the vertical rod; and a weight-bearing member tied to the human ankle.

[0008] Preferably, the pullback member also includes a seat body, a sleeve shaft, a ratchet and a clamping rod. The seat body is arranged on the bottom surface of the bed board, the sleeve shaft passes through the seat body, one end of the vertical rod can be rotatably sleeved on the sleeve shaft, the ratchet is sleeved on the sleeve shaft, the clamping rod can be telescopically arranged on the vertical rod, and the protruding end of the clamping rod is clamped on the ratchet.

[0009] Preferably, the vertical rod is a telescopic rod.

[0010] Preferably, a buckle is provided on the elastic rope.

[0011] Preferably, the load-bearing member includes a placement seat, a load-bearing block, a flexible rope and a first binding belt. The load-bearing block is clamped on the placement seat, and several of the load-bearing blocks can be stacked on each other. The flexible rope is connected to the placement seat, and the first binding belt is connected to the flexible rope.

[0012] Preferably, a limiting curved plate and a second binding belt are further provided on the bed board. The limiting curved plate is provided on the side of the bed board and on the side close to the vertical rod. The second binding belt is detachably provided on the upper end surface of the bed board.

[0013] Preferably, a groove is provided on the bed board, and a hand-held rod is also provided on the bed board, and the hand-held rod can be rotatably arranged in the groove.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] By suspending the patient's lower legs in the air, the weight-bearing piece and the elastic rope are driven to move, which has the effect of driving the muscles and ligaments around the knee joint to move in the vertical and horizontal directions. By having the patient kick his legs repeatedly, the stimulation of the muscles and ligaments around the knee joint is increased. For those muscles and ligaments around the knee joint that have already become severely stiff, the stretching range of the muscles and ligaments around the knee joint is increased, which can significantly improve the rehabilitation training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An axonometric view of a progressive traction training device for knee joint stiffness.

[0017] Figure 2 The present invention is a front view of a progressive traction training device for knee joint stiffness.

[0018] Figure 3 This is a left view of a progressive traction training device for knee joint stiffness.

[0019] Figure 4 A top view of a progressive traction training device for knee joint stiffness.

[0020] Figure 5 for Figure 2 -A: A partial enlarged view.

[0021] Figure 6 for Figure 3 -B is a partial enlarged view.

[0022] Figure 7 for Figure 2 -C: Partially enlarged image.

[0023] In the figure: lifting frame 10, bed board 20, pulling back member 30, vertical rod 310, elastic rope 320, buckle 321, seat body 330, sleeve shaft 340, ratchet 350, clamping rod 360, weight-bearing member 40, placement seat 410, weight-bearing block 420, flexible rope 430, first binding belt 440, limiting curved plate 50, second binding belt 60, hand-held rod 70, groove 710. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The following will further describe the technical solution of the present invention in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0025] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc. indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] Please see Figures 1 to 7 A progressive traction training device for knee joint stiffness includes a lifting frame 10 and a bed board 20, characterized in that a pullback member 30 is provided on the bottom surface of the bed board 20, and the pullback member 30 includes a vertical rod 310 and an elastic rope 320, the vertical rod 310 is vertically arranged on the bottom surface of the bed board 20, and the elastic rope is tied to the vertical rod 310; and a weight-bearing member 40 tied to the human ankle.

[0027] The lifting frame 10 and the bed plate 20 constitute a lifting type medical bed, that is, the lifting type medical bed is an existing lifting bed.

[0028] The weight block 420 is an object with a certain weight, such as a sandbag, a weight block, etc.

[0029] The specific usage process is:

[0030] The bed is raised, and the patient sits on the bed board 20, with the thighs touching the bed board 20, the knee joints located at the edge of the bed board 20, and the calves and feet hanging naturally. The weight-bearing member 40 is tied to the ankle of the human body and hung in the air. If the knee joint of one leg is stiff, it is tied to the ankle of the stiff leg. If the knee joints of both legs are stiff at the same time, they are tied at the same time. The vertical rod 310 is set vertically downward and extends a certain distance. At this time, the vertical rod 310 is fixedly set on the bottom surface of the bed board 20 and is fixed. One end of the elastic rope 320 is also tied to the ankle of the patient's stiff leg. The installation is completed; since the weight-bearing piece 40 is suspended in the air, it will give a downward traction force, which has the effect of vertically stretching the muscles and ligaments around the knee joint. At the same time, the patient's legs kick forward, driving the elastic rope 320 to stretch. Since the elastic rope 320 rebounds, the patient's legs need to exert force again and kick forward. The elastic rope 320 will give the patient's legs a horizontal pulling force, which has the effect of partially horizontally stretching the muscles and ligaments around the knee joint. Moreover, during the patient's kicking exercise, the weight-bearing piece 40 is swung to exercise, further driving the movement of the muscles and ligaments around the patient's knee joint.

[0031] The effect achieved:

[0032] By suspending the patient's lower leg in the air, the weight-bearing member 40 and the elastic rope 320 are driven to move, which has the effect of driving the muscles and ligaments around the knee joint to move in the vertical and horizontal directions. By the patient kicking his legs repeatedly, the stimulation of the muscles and ligaments around the knee joint is increased. For the severe stiffness of the muscles and ligaments around the knee joint, the stretching range of the muscles and ligaments around the knee joint is increased, which can significantly improve the rehabilitation training effect.

[0033] In a possible embodiment, the pullback member 30 also includes a seat body 330, a sleeve 340, a ratchet 350 and a clamping rod 360. The seat body 330 is arranged on the bottom surface of the bed board 20, and the sleeve 340 is arranged through the seat body 330. One end of the vertical rod 310 can be rotatably sleeved on the sleeve 340, and the ratchet 350 is sleeved on the sleeve 340. The clamping rod 360 can be telescopically arranged on the vertical rod 310, and the protruding end of the clamping rod 360 is clamped on the ratchet 350. When the stimulation of the muscles and ligaments around the patient's knee joint needs to be increased, the vertical rod 310 needs to be tilted backward to increase the tension of the elastic rope 320. The sleeve shaft 340 is fixed on the seat body 330, and the ratchet 350 is coaxially fixed on the sleeve shaft 340. When in use, the clamping rod 360 is pressed to shrink the clamping rod 360 in the vertical rod 310, so that the clamping rod 360 and the ratchet 350 are separated from each other, and the vertical rod 310 is rotated. The vertical rod 310 rotates around the sleeve shaft 340. When the vertical rod 310 rotates a preset angle, When the locking rod 360 is released, the locking rod 360 pops out from the vertical rod 310, and the locking rod 360 continues to be engaged with the teeth of the ratchet 350 to prevent the vertical rod 310 from rotating around the sleeve 340; similarly, when the vertical rod 310 needs to be rotated to the initial position (i.e., the vertical position), it is also necessary to press the locking rod 360 to shrink the locking rod 360 inside the vertical rod 310, and then rotate the vertical rod 310 to rotate the vertical rod 310 to the initial position (i.e., the vertical position), release the locking rod 360, and the locking rod 360 is engaged with the ratchet 350.

[0034] For details, see Figure 5 The vertical rod 310 is provided with a mounting hole, and the clamping rod 360 is installed in the mounting hole. A spring is provided on the clamping rod 360. When the clamping rod 360 is pressed, the extrusion spring contracts, and the clamping rod 360 contracts into the vertical rod 310. When the clamping rod 360 is not pressed, the spring resets, driving the clamping rod 360 to extend out of the vertical rod 310 and clamped on the ratchet 350.

[0035] In one possible embodiment, the vertical rod 310 is a telescopic rod. Due to the different elevations of patients and the different lengths of their legs, the vertical rod 310 is configured as a telescopic rod to ensure that the elastic cord 320 is horizontally tied to the patient's ankle without causing a foreign body sensation. The length of the vertical rod 310 is adjusted so that the end of the vertical rod 310 is flush with the patient's ankle. Since the elastic cord 320 is provided at the end of the vertical rod 310, the elastic cord 320 is used to tie the patient's ankle, thereby preventing the elastic cord 320 from rubbing against the patient's ankle during the patient's rehabilitation training.

[0036] In a possible embodiment, the elastic cord 320 is provided with a buckle 321. When the elastic cord 320 needs to be tied to the patient's ankle, the buckle 321 is used to lock the elastic cord 320 with the patient's ankle. When the patient's rehabilitation training is completed, the buckle 321 is unfastened to separate the buckle 321 from the patient's ankle.

[0037] In one possible embodiment, see Figure 7 The weight-bearing member 40 includes a placement seat 410, a weight block 420, a flexible rope 430 and a first binding belt 440. The weight block 420 is clamped on the placement seat 410, and several weight blocks 420 can be stacked on each other. The flexible rope 430 is connected to the placement seat 410, and the first binding belt 440 is connected to the flexible rope 430. A number of the weight blocks 420 can be placed on the placement seat 410. When the muscles and ligaments around the patient's knee joint are stretched for the first time, fewer weight blocks 420 are placed on the placement seat 410 to allow the patient to adapt to the vertical downward traction applied by the weight piece 40. As the muscles and ligaments around the patient's knee joint are gradually trained, when the patient is sufficiently adapted to the weight piece 40 and the muscles and ligaments around the patient's knee joint are able to bear the heavier weight piece 40, the weight blocks 420 are gradually added to the placement seat 410. The flexible rope 430 is a rope 320 with a slight elastic force. When the patient's legs swing, the weight block 420 is driven to swing. The flexible rope 430 has a good traction effect. At the same time, when the elastic rope 320 is tied to the patient's ankle, that is, when the buckle 321 provided on the elastic rope 320 is tied to the patient's ankle, the first binding belt 440 is tied to the buckle 321.

[0038] In one possible embodiment, see Figure 1 The bed board 20 is also provided with a limit curved plate 50 and a second binding belt 60. The limit curved plate 50 is provided on the side of the bed board 20 and is provided on a side close to the vertical rod 310. The second binding belt 60 is detachably provided on the upper end surface of the bed board 20. There are two limit curved plates 50, and the limit curved plates 50 are curved in an arc shape. At the same time, the limit curved plates 50 have limit clamps. When a patient sits on the bed board 20, the knee joint is placed in the limit curved plate 50 and fits in the limit curved plate. At the same time, the patient's legs are limited to the limit curved plate 50, which improves the comfort of the patient's knee joint. The patient's knee joint and legs are limited to prevent the patient's legs from deviating during rehabilitation training.

[0039] In a possible embodiment, a groove 710 is provided on the bed board 20, and a hand-held rod 70 is further provided on the bed board 20. The hand-held rod 70 is rotatably disposed in the groove 710. During rehabilitation training of the muscles and ligaments around the patient's knee joint, the legs drive the elastic rope 320 to lengthen, while swinging the weight-bearing member 40. When the weight-bearing member 40 is heavy, it drives the patient to move on the bed board 20, causing the patient's knee joint to disengage from the limiting curved plate 50. When the patient wears the heavier weight-bearing member 40, the hand-held rod 70 is pulled out of the groove 710, and the hand-held rod 70 is in an upright state. The hand-held rod 70 is located between the patient's legs. The patient holds the hand-held rod 70 with his hands to keep the patient's upper limbs fixed, thereby preventing the patient's knee joint from disengaging from the limiting curved plate 50.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to provide an exhaustive list of all implementation methods. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A progressive traction training device for knee joint stiffness, comprising a lifting frame and a bed board, characterized in that: The bottom surface of the bed board is provided with a pull-back member, which includes a vertical rod and an elastic rope. The vertical rod is vertically provided on the bottom surface of the bed board, and the elastic rope is tied to the vertical rod; and a weight-bearing member tied to the ankle of the human body.

2. A progressive traction training device for knee joint stiffness according to claim 1, characterized in that: The pullback member also includes a seat body, a sleeve shaft, a ratchet and a clamping rod. The seat body is arranged on the bottom surface of the bed board, the sleeve shaft passes through the seat body, one end of the vertical rod can be rotatably sleeved on the sleeve shaft, the ratchet is sleeved on the sleeve shaft, the clamping rod can be telescopically arranged on the vertical rod, and the protruding end of the clamping rod is clamped on the ratchet.

3. A progressive traction training device for knee joint stiffness according to claim 1, characterized in that: The vertical rod is a telescopic rod.

4. A progressive traction training device for knee joint stiffness according to claim 1, characterized in that: The elastic rope is provided with a buckle.

5. The progressive traction training device for knee joint stiffness according to claim 1, characterized in that: The load-bearing member includes a placement seat, a load-bearing block, a flexible rope and a first binding belt. The load-bearing block is clamped on the placement seat, and several load-bearing blocks can be stacked on each other. The flexible rope is connected to the placement seat, and the first binding belt is connected to the flexible rope.

6. A progressive traction training device for knee joint stiffness according to claim 1, characterized in that: The bed board is also provided with a limit curved plate and a second binding belt. The limit curved plate is provided on the side of the bed board and on a side close to the vertical rod. The second binding belt is detachably provided on the upper end surface of the bed board.

7. A progressive traction training device for knee joint stiffness according to claim 1, characterized in that: A groove is provided on the bed board, and a hand-held rod is also provided on the bed board. The hand-held rod can be rotatably arranged in the groove.

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