Knee joint replacement postoperative functional exercise device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a knee joint replacement postoperative functional exerciser which comprises a seat plate and two supporting legs, the bottom end of the seat plate is fixedly connected with a supporting rod, the side wall of the supporting rod is rotatably connected with two overturning plates, the inner walls of the two overturning plates are both slidably connected with U-shaped frames, and the U-shaped frames are fixedly connected with the supporting legs. A carrying plate is fixedly connected to the bottom end of the U-shaped frame, foot sleeves are installed at the top end of the carrying plate, an arc-shaped plate is slidably connected to one side of the overturning plate, and an arc-shaped sliding rod is slidably connected to the inner wall of the arc-shaped plate. By adjusting the position of a limiting block in an arc-shaped plate, the pressure applied to an arc-shaped sliding rod by a second spring is adjusted, the knee bending exercise intensity is adjusted, and the proper exercise intensity is conveniently selected for use according to the recovery condition; by adjusting the position of the arc-shaped plate on the turnover plate, the weight of the arc-shaped plate and the weight of all assemblies on the arc-shaped plate can be applied to different positions of the turnover plate, and the lifting resistance borne by the patient when the patient stretches the knees and lifts the legs can be adjusted and changed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a knee joint replacement postoperative functional exercise device. BACKGROUND

[0002] Knee joint replacement is a surgical method for treating severe knee joint diseases, and when the knee joint is seriously damaged due to osteoarthritis, rheumatoid arthritis or the like, the joint cartilage is seriously worn and damaged, the joint is deformed, and the pain is severe and seriously affects the quality of life, so the diseased knee joint is partially or entirely replaced by an artificial joint assembly through surgery;

[0003] After the knee joint replacement surgery, the patient needs to exercise after a period of recuperation, so as to help the recovery of the knee joint of the operated limb, and the knee bending exercise and the knee stretching exercise are commonly used exercise methods during the knee joint exercise, and the patient exercises with the exercise device, but in actual use, the patient cannot adjust the exercise intensity according to the recovery condition, the exercise effect is poor, and the flexibility is insufficient. UTILITARY MODEL

[0004] The utility model provides a knee joint replacement postoperative functional exercise device, has the characteristics that the exercise intensity can be adjusted according to the recovery condition.

[0005] The utility model provides the following technical scheme: including the sitting plate and two support legs, the sitting plate bottom fixedly connected with the support rod, the support rod lateral wall rotationally connected with two turnover plates, two turnover plate inner walls all are slidably connected with the U type frame, the U type frame bottom fixedly connected with the carrier plate, the carrier plate top is installed with the foot cover, the turnover plate one side is slidably connected with the arc plate, the arc plate inner wall is slidably connected with the arc sliding rod, the arc sliding rod both ends are fixedly connected with the contact plate and the limiting plate, the contact plate with the sitting plate bottom contact, the limiting plate is slidably connected in the arc plate inner wall, the arc plate inner wall is provided with the second spring, the second spring one end fixedly connected in the limiting plate one side, the second spring other end fixedly connected with the limiting block, the limiting block is slidably connected in the arc plate inner wall.

[0006] Among them, the arc plate inner wall is installed with two rotation sensors, and the two rotation sensors are slidably connected to the top and bottom of the arc sliding rod respectively.

[0007] Among them, the turnover plate bottom inner wall is fixedly connected with the first spring, and the first spring one end fixedly connected in the U type frame top inner wall.

[0008] The limiting block bottom end is fixedly connected with a sliding block, the arc-shaped plate bottom end is provided with a letting gap, the limiting block is slidingly connected to the inner wall of the letting gap, the sliding block inner wall is hinged with a clamping plate, a torsion spring is arranged between the clamping plate and the sliding block, the clamping plate one side is fixedly connected with a limiting convex point, and the letting gap inner wall is provided with a plurality of clamping grooves limiting the limiting convex point.

[0009] The arc-shaped plate one end is fixedly connected with a limiting sliding block, the turnover plate one side is provided with a sliding groove, the limiting sliding block is slidingly connected to the sliding groove inner wall, the arc-shaped plate top end is fixedly connected with a supporting plate, the supporting plate inner wall is threadedly connected with two limiting screws, the turnover plate one side is provided with a plurality of insertion holes, and the limiting screws are inserted into the corresponding insertion hole inner walls.

[0010] The beneficial effects of the utility model are: through adjusting the position of the limiting block in the arc-shaped plate, the limiting block can compress the second spring to different degrees, thereby adjusting the pressure applied by the second spring to the arc-shaped sliding rod, so that the patient's knee bending exercise intensity is adjusted, and the appropriate exercise intensity is selected according to the patient's recovery condition; through adjusting the position of the arc-shaped plate on the turnover plate, the weight of the arc-shaped plate and each component on the arc-shaped plate can be applied to different positions of the turnover plate, the lifting resistance that the patient can bear when stretching the knee and lifting the leg is adjusted and changed by using the lever principle, so that the purpose of adjusting the exercise intensity of the patient in different recovery stages is further realized, the exercise effect is improved, and the flexibility is improved.

[0011] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0013] Figure 2 It is a side view cross section structure schematic diagram of the utility model;

[0014] Figure 3 It is Figure 2 The enlarged schematic diagram of A part in the utility model;

[0015] Figure 4 It is Figure 2 The enlarged schematic diagram of B part in the utility model;

[0016] Figure 5 It is a rear view enlarged structure schematic diagram of the turnover plate in the utility model.

[0017] In the figure: 1, the seat plate; 11, support leg; 12, support rod; 2, the turnover plate; 21, U-shaped frame; 22, the carrier plate; 23, the foot cover; 24, the first spring; 25, the sliding slot; 26, the jack; 3, the arc plate; 31, the arc sliding rod; 311, the contact plate; 312, the limiting plate; 32, the second spring; 33, the rotation sensor; 34, the limiting block; 341, the sliding block; 342, the clamping plate; 343, the limiting convex point; 35, the gap; 36, the limiting sliding block; 4, the support plate; 41, the limiting screw. DETAILED DESCRIPTION

[0018] Please refer to Figures 1-5 The utility model provides the following technical scheme: including seat plate 1 and two support legs 11, the seat plate 1 bottom fixedly connected with support rod 12, support rod 12 side wall rotationally connected with two turnover plates 2, two turnover plates 2 inner wall all slidingly connected with U-shaped frame 21, U-shaped frame 21 bottom fixedly connected with carrier plate 22, carrier plate 22 top end is installed with foot cover 23, turnover plate 2 one side slidingly connected with arc plate 3, arc plate 3 inner wall slidingly connected with arc sliding rod 31, and arc sliding rod 31 both ends are fixedly connected with contact plate 311 and limiting plate 312 respectively, contact plate 311 with seat plate 1 bottom contact, limiting plate 312 slidingly connected in arc plate 3 inner wall, and arc plate 3 inner wall is provided with second spring 32, and one end of second spring 32 is fixedly connected on one side of limiting plate 312, and the other end of second spring 32 is fixedly connected with limiting block 34, and limiting block 34 slidingly connected in arc plate 3 inner wall.

[0019] In this embodiment: the sitting plate 1 supports the components of the device area through two support legs 11, the support rod 12 supports the two turnover plates 2, the arc-shaped plate 3 supports the arc-shaped sliding rod 31, the turnover plate 2 can slide inside the turnover plate 2, so that the length composed of the turnover plate 2 and the U-shaped frame 21 can be adjusted, which is convenient for people of different body types to use, the U-shaped frame 21 supports the load plate 22, the load plate 22 supports the patient's feet, the load plate 22 is connected and fixed with the patient's feet through the foot sleeve 23, so that the patient can stably exercise after knee replacement surgery, the turnover plate 2 supports the arc-shaped plate 3, the arc-shaped sliding rod 31 supports the contact plate 311, the arc-shaped sliding rod 31 is in contact with the bottom of the sitting plate 1 through the contact plate 311, the contact plate 311 can reduce the wear and sliding resistance problem between the arc-shaped sliding rod 31 and the sitting plate 1, the arc-shaped plate 3 limits the position of the limiting plate 312, so that the limiting plate 312 can limit the position of the arc-shaped sliding rod 31, preventing the arc-shaped plate 3 from being separated from the arc-shaped sliding rod 31, the second spring 32 pushes the limiting plate 312, so that the limiting plate 312 can drive the arc-shaped sliding rod 31 to slide away from the turnover plate 2, when the patient exercises with a knee bending action, the patient's leg drives the load plate 22 to turn over to the sitting plate 1 through the foot sleeve 23, the load plate 22 drives the turnover plate 2 to fold and turn over to the bottom of the sitting plate 1 through the U-shaped frame 21, the turnover plate 2 drives the arc-shaped sliding rod 31 to turn over through the arc-shaped plate 3, the arc-shaped sliding rod 31 drives the contact plate 311 to contact the bottom of the sitting plate 1, the sitting plate 1 limits the position of the arc-shaped sliding rod 31, as the strength of the patient's leg increases, the turnover plate 2 drives the arc-shaped plate 3 to continue to approach the sitting plate 1, the arc-shaped sliding rod 31 slides to the inside of the arc-shaped plate 3 under pressure, the arc-shaped sliding rod 31 extrudes the second spring 32, so that the patient can feel the resistance brought by the second spring 32 at this time, by adjusting the position of the limiting block 34 in the arc-shaped plate 3, the limiting block 34 can compress the second spring 32 to different degrees, thereby adjusting the pressure applied by the second spring 32 to the arc-shaped sliding rod 31, and then the patient's exercise intensity is adjusted, which is convenient for selecting the appropriate exercise intensity according to the patient's recovery condition, when the patient exercises with a knee extension action, the turnover plate 2 is lifted up with the patient's leg, the turnover plate 2 drives the arc-shaped plate 3 and other components to be lifted up, and the knee extension exercise is completed, by adjusting the position of the arc-shaped plate 3 on the turnover plate 2, the weight of the arc-shaped plate 3 and the components on the arc-shaped plate 3 can be applied to different positions of the turnover plate 2, by using the principle of lever, the lifting resistance that the patient can bear when lifting the leg is adjusted and changed, thereby further achieving the purpose of adjusting the exercise intensity of the patient in different recovery stages, improving the exercise effect, and improving the flexibility.

[0020] Two rotation sensors 33 are mounted on the inner wall of the arc-shaped plate 3, and are respectively slidably connected to the top end and the bottom end of the arc-shaped sliding rod 31. When the patient performs knee bending exercise, the arc-shaped sliding rod 31 is pressed to shrink into the arc-shaped plate 3, and the rotation sensor 33 is rotated when the arc-shaped sliding rod 31 slides. The rotation sensor 33 is inducted, and the length of the arc-shaped sliding rod 31 that shrinks into the arc-shaped plate 3 at this time can be known through the number of rotation circles of the rotation sensor 33, and then the bending amplitude of the patient's knee bending action at this time can be known. At this time, the patient's knee bending action is recorded, so that the patient can clearly understand the exercise situation completed by himself, and a prompting device can be added to be connected with the rotation sensor 33 to indicate the completion of the amplitude of the patient's knee bending action each time, thereby improving the exercise effect.

[0021] The first spring 24 is fixedly connected to the inner wall of the bottom end of the turnover plate 2, and one end of the first spring 24 is fixedly connected to the inner wall of the top end of the U-shaped frame 21. The first spring 24 pushes the U-shaped frame 21 with the bottom wall of the turnover plate 2 as a support base point, so that the U-shaped frame 21 can shrink into the turnover plate 2 without being controlled by the patient, thereby reducing the space occupation problem of the device when it is placed, and the height of the U-shaped frame 21, the carrier plate 22 and the foot sleeve 23 are lifted, thereby facilitating the connection of the patient's feet and the foot sleeve 23.

[0022] The bottom end of the limiting block 34 is fixedly connected with a sliding block 341, the bottom end of the arc-shaped plate 3 is provided with a let-out notch 35, the limiting block 34 is slidably connected to the inner wall of the let-out notch 35, the inner wall of the sliding block 341 is hingedly connected with a clamping plate 342, a torsional spring is arranged between the clamping plate 342 and the sliding block 341, one side of the clamping plate 342 is fixedly connected with a limiting protrusion 343, and a plurality of clamping grooves for limiting the limiting protrusion 343 are arranged in the inner wall of the let-out notch 35. The arc-shaped plate 3 uses the let-out notch 35 to let out the sliding block 341, and the sliding block 341 drives and limits the limiting block 34. After the position of the sliding block 341 is adjusted, the sliding block 341 can drive the limiting block 34 to adjust the position in the arc-shaped plate 3, then the clamping plate 342 is released from the extrusion, the torsional spring drives the clamping plate 342 to turn away from the sliding block 341, the clamping plate 342 drives the sliding block 341 to be inserted into the clamping groove in the inner wall of the let-out notch 35, thereby realizing the locking of the position of the sliding block 341, the sliding block 341 drives the limiting block 34 to limit the position, and the stability of the extrusion of the limiting block 34 on the second spring 32 is improved.

[0023] The arc-shaped plate 3 is fixedly connected with a limiting sliding block 36 at one end, a sliding groove 25 is formed in one side of the turnover plate 2, the limiting sliding block 36 is slidingly connected to the inner wall of the sliding groove 25, the arc-shaped plate 3 is fixedly connected with a supporting plate 4 at the top end, two limiting screw rods 41 are threadedly connected to the inner wall of the supporting plate 4, a plurality of insertion holes 26 are formed in one side of the turnover plate 2, and the limiting screw rods 41 are inserted into the inner walls of the corresponding insertion holes 26; the sliding groove 25 guides and limits the sliding of the limiting sliding block 36, the limiting sliding block 36 supports the arc-shaped plate 3, the arc-shaped plate 3 supports the supporting plate 4, the two limiting screw rods 41 are rotated, the limiting screw rods 41 can be away from or close to the turnover plate 2, the limiting screw rods 41 can be connected with or separated from the insertion holes 26, and then the arc-shaped plate 3 can be locked after position adjustment on the turnover plate 2.

[0024] The working principle and use process of the utility model are as follows: when the patient exercises the knee flexion action, the patient's leg drives the carrier plate 22 to overturn to the direction of the seat plate 1 through the foot cover 23, the carrier plate 22 drives the turnover plate 2 to fold and overturn to the bottom of the seat plate 1 through the U-shaped frame 21, the turnover plate 2 drives the arc-shaped sliding rod 31 to overturn through the arc-shaped plate 3, the arc-shaped sliding rod 31 drives the contact plate 311 to contact with the bottom of the seat plate 1, the seat plate 1 limits the arc-shaped sliding rod 31, along with the increase of the strength of the patient's leg, the turnover plate 2 drives the arc-shaped plate 3 to continue to approach the direction of the seat plate 1, the arc-shaped sliding rod 31 is pressed to slide to the inside of the arc-shaped plate 3, the arc-shaped sliding rod 31 extrudes the second spring 32, so that the patient can feel the resistance brought by the second spring 32 at this time, the position of the limiting block 34 in the arc-shaped plate 3 is adjusted by controlling the sliding block 341, then the extrusion on the clamping plate 342 is released, the torsional spring drives the clamping plate 342 to overturn to the direction away from the sliding block 341, the clamping plate 342 drives the sliding block 341 to be inserted into the clamping groove in the inner wall of the accommodation gap 35, so that the position of the sliding block 341 is locked, the sliding block 341 drives the limiting block 34 to be positioned, the stability of the extrusion of the limiting block 34 on the second spring 32 is improved, the limiting block 34 can compress the second spring 32 to different degrees, the pressure of the second spring 32 on the arc-shaped sliding rod 31 is adjusted, and then the exercise strength of the patient is adjusted, so that the appropriate exercise strength can be selected according to the recovery condition of the patient.

Claims

1. A post-total knee arthroplasty functional exercise device comprising a seat plate (1) and two support legs (11), characterized in that: The bottom end of the seat plate (1) is fixedly connected with a support rod (12), the side wall of the support rod (12) is rotatably connected with two turnover plates (2), the inner wall of each of the two turnover plates (2) is slidably connected with a U-shaped frame (21), the bottom end of the U-shaped frame (21) is fixedly connected with a load plate (22), the top end of the load plate (22) is provided with a foot cover (23), one side of the turnover plate (2) is slidably connected with an arc-shaped plate (3), the inner wall of the arc-shaped plate (3) is slidably connected with an arc-shaped sliding rod (31), the two ends of the arc-shaped sliding rod (31) are fixedly connected with a contact plate (311) and a limiting plate (312) respectively, the contact plate (311) is in contact with the bottom end of the seat plate (1), the limiting plate (312) is slidably connected to the inner wall of the arc-shaped plate (3), the inner wall of the arc-shaped plate (3) is provided with a second spring (32), one end of the second spring (32) is fixedly connected to one side of the limiting plate (312), the other end of the second spring (32) is fixedly connected with a limiting block (34), the limiting block (34) is slidably connected to the inner wall of the arc-shaped plate (3).

2. The post knee arthroplasty functional exercise device according to claim 1, wherein: The inner wall of the arc-shaped plate (3) is provided with two rotation sensors (33), the two rotation sensors (33) are slidably connected to the top end and the bottom end of the arc-shaped sliding rod (31) respectively.

3. The post knee replacement exercise device of claim 1, wherein: The inner wall of the bottom end of the turnover plate (2) is fixedly connected with a first spring (24), one end of the first spring (24) is fixedly connected to the inner wall of the top end of the U-shaped frame (21).

4. The post knee replacement exercise device of claim 1, wherein: The bottom end of the limiting block (34) is fixedly connected with a sliding block (341), the bottom end of the arc-shaped plate (3) is provided with a letting gap (35), the limiting block (34) is slidably connected to the inner wall of the letting gap (35), the inner wall of the sliding block (341) is hingedly provided with a clamping plate (342), a torsion spring is arranged between the clamping plate (342) and the sliding block (341), one side of the clamping plate (342) is fixedly connected with a limiting convex point (343), a plurality of clamping grooves for limiting the limiting convex point (343) are formed in the inner wall of the letting gap (35).

5. The post knee replacement functional exercise device of claim 1, wherein: One end of the arc-shaped plate (3) is fixedly connected with a limiting sliding block (36), one side of the turnover plate (2) is provided with a sliding groove (25), the limiting sliding block (36) is slidably connected to the inner wall of the sliding groove (25), the top end of the arc-shaped plate (3) is fixedly connected with a support plate (4), the inner wall of the support plate (4) is threadedly connected with two limiting screws (41), a plurality of insertion holes (26) are formed in one side of the turnover plate (2), the limiting screws (41) are inserted into the inner walls of the corresponding insertion holes (26).

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