Knee joint straightening auxiliary device

Abstract

The utility model discloses an auxiliary device for knee joint straightening, which relates to the technical field of medical instruments and specifically comprises a support rod, barbell discs are connected to two sides of the outer cambered surface of the support rod in a penetrating manner, a shaft seat is connected to the middle of the outer cambered surface of the support rod in a penetrating manner, the support rod is driven in the pressing process of the barbell discs, so that convex rods on two sides can float downwards, and a knee joint can be straightened. The connected inclined curved rod moves downwards as well, then one end of the inclined curved rod enables one corner of the turning connecting plate to move downwards, and the bottom end of the turning connecting plate is connected into the sliding groove in a sliding mode through a shaft rod; under the clamping of gravity and the pressure of the barbell discs, the knee joints of the patient can pull the extension springs through the angle change of the bottoms of the turning connecting plates to enable the extension springs to generate elastic deformation, and the springs which are pulled downwards after deformation form opposite acting force under the movement of the joint connecting plates, so that counter-acting force is formed between the springs and the barbell discs; therefore, the knee joints of the patient can be straightened, and the situation that the movement of the joints is affected when the patient passes through objects with different gravities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a knee joint straightening assist device. Background Technique

[0002] After knee joint related surgeries, a stage of rehabilitation training is required. It is necessary to prevent joint stiffness, muscle atrophy, and adhesions within various tissue layers through rehabilitation exercises. At the same time, gradually increase the joint range of motion of the patient, improve and correct abnormal postures caused by the patient's long-term illness, and restore the coordination of daily living movements. In this situation, a rehabilitation training device is needed to help the patient perform knee joint rehabilitation training, which can train people with problems in knee joint function to help them restore the function of the knee joint.

[0003] The existing nursing method for knee joint replacement is to directly press rice on the patient's knee. The patient's knee is in a straightened state for a long time. When the rice bag is too light, it cannot play the role of pressing and straightening the knee. When the rice bag is too heavy, it will affect the wound on the patient's knee, and the rice bag is easy to slip off the knee. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a knee joint straightening assist device to solve the problem that the patient's knee is in a straightened state for a long time.

[0005] To achieve the above object, the utility model is realized through the following technical solutions: The knee joint straightening assist device includes a support rod. Both sides of the outer arc surface of the support rod are penetrated and connected with barbell plates. The middle of the outer arc surface of the support rod is penetrated and connected with a shaft seat. Both sides of the outer arc surface of the support rod are penetrated and connected with linkage components;

[0006] The linkage component includes convex rods penetrated and connected to both sides of the outer arc surface of the support rod. Both sides of one surface of the convex rod are movably connected with inclined curved rods through rotating shafts. One end of the inclined curved rod far from the convex rod is movably connected with a turning connecting plate. One side of the turning connecting plate is provided with a convex part. One side of the convex part is penetrated and connected with a shaft rod. The middle of one surface of the turning connecting plate is movably connected with a rotating connecting rod through a rotating shaft.

[0007] Optionally, the number of the turning connecting plates is two and they are distributed symmetrically in a mirror image. The middle parts of the two turning connecting plates are movably connected with a fixed support plate through a rotating shaft. The upper surface of the fixed support plate is a hollow structure.

[0008] Optionally, the side of the rotating connecting rod far from the turning connecting plate is movably connected with a movable support plate through a rotating shaft. One end of the movable support plate is provided with a lifting part. The upper surface of the movable support plate is provided with an extension part.

[0009] Optionally, one side of the extension portion is movably connected to the rotating connecting rod through a rotating shaft, and sliding grooves are provided on both sides of the extension portion, and the outer arc surface of the shaft rod passes through and is connected to the sliding groove.

[0010] Optionally, the number of the movable support plates is two, and they are distributed at both ends of the support rod in a mirror-symmetrical manner, and the outer arc surface of the shaft rod is connected to a tension spring.

[0011] Optionally, a load-bearing rod is fixedly installed at one end of the tension spring away from the shaft rod, and the load-bearing rod is fixedly installed at the rear end of the sliding groove. When the barbell plate is pressed downward, the support rod will be driven, so that the convex rods on both sides will float downward, and the connected inclined curved rods will also move downward, and then one end of the inclined curved rod will cause a corner of the turning connecting plate to move downward, and the bottom end will be connected to the sliding groove by sliding on the shaft rod. Under the pressure of the barbell plate under the force of gravity, the patient's knee joint can be elastically deformed by pulling the tension spring through the change in the bottom angle of the turning connecting plate, and the deformed downward-pulled spring forms a reverse force under the movement of the joint connecting plate, thereby forming a reaction force with the barbell plate, which not only allows the patient to straighten the knee joint, but also avoids the situation where the joint movement is affected by objects with different gravity.

[0012] Optionally, a joint plate is fixedly installed on one side surface of the two fixed support plates, and a pressure sensor is electrically connected to the edge of one side of the outer arc surface of the joint plate. The pressure sensor is electrically connected to the support rod and is compatible with the barbell plate. The pressure sensor can be used to monitor the gravity required by the patient and replace it.

[0013] The utility model provides a knee joint straightening auxiliary device, which has the following beneficial effects:

[0014] In the process of pressing down through the barbell plate, the support rod will be driven, so that the convex rods on both sides will float downward, and the connected oblique curved rods will also move downward, and then one end of the oblique curved rod will move a corner of the turning connecting plate downward, and the bottom end will be connected to the sliding groove by sliding on the shaft rod. Under the support of gravity, the patient's knee joint can be pulled by the tension spring to elastically deform through the change in the bottom angle of the turning connecting plate under the pressure of the barbell plate, and the deformed downward spring will form a reverse force under the movement of the joint connecting plate, thereby forming a reaction force with the barbell plate, which can not only allow the patient to straighten the knee joint, but also avoid the situation where the joint movement is affected by objects with different gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained by extending the provided drawings.

[0016] Figure 1 It is a schematic structural diagram of the present invention;

[0017] Figure 2 It is a schematic disassembled structural diagram of the present invention;

[0018] Figure 3 It is a schematic side structural diagram of the present invention;

[0019] Figure 4 It is a schematic partial structural diagram of the present invention.

[0020] In the figure: 1, support rod; 2, barbell plate; 3, shaft seat; 4, linkage assembly; 401, convex rod; 402, inclined curved rod; 403, turning connection plate; 404, convex part; 405, shaft rod; 406, rotating connecting rod; 407, fixed support plate; 408, movable support plate; 409, extension part; 410, sliding groove; 411, tension spring; 412, bearing rod; 413, joint connecting plate; 5, pressure sensor. Specific embodiments

[0021] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0022] Please refer to Figures 1 to 4The utility model provides a technical solution: a knee joint straightening auxiliary device, including a support rod 1, barbell plates 2 are penetrated and connected on both sides of the outer arc surface of the support rod 1, an axle seat 3 is penetrated and connected on the middle part of the outer arc surface of the support rod 1, and linkage components 4 are penetrated and connected on both sides of the outer arc surface of the support rod 1. The linkage component 4 includes a convex rod 401 that penetrates and connects on both sides of the outer arc surface of the support rod 1, and both sides of the surface of one side of the convex rod 401 are movably connected with oblique rods 402 through a rotating shaft, and one end of the oblique rod 402 is movably connected to a turning connecting plate 403 away from the side of the convex rod 401. A convex portion 404 is provided on one side of the turning connecting plate 403, and an axle rod 405 is penetrated and connected on one side of the convex portion 404. A rotating connecting rod 406 is movably connected to the middle part of the surface of one side of the turning connecting plate 403 through a rotating shaft. The number of the turning connecting plates 403 is two, and they are distributed in a mirror-symmetrical manner. The middle part of 403 is movably connected with a fixed support plate 407 through a rotating shaft, and the upper surface of the fixed support plate 407 is a hollow structure. The side of the rotating connecting rod 406 away from the turning connecting plate 403 is movably connected with a movable support plate 408 through a rotating shaft. One end of the movable support plate 408 is provided with an end-raising portion, and the upper surface of the movable support plate 408 is provided with an extension portion 409. One side of the extension portion 409 is movably connected with the rotating connecting rod 406 through a rotating shaft. Sliding grooves 410 are provided on both sides of the extension portion 409. The outer arc surface of the shaft rod 405 is connected to the sliding groove 410. There are two movable support plates 408, which are distributed at both ends of the support rod 1 in a mirror-symmetrical manner. The outer arc surface of the shaft rod 405 is connected with a tension spring 411. The end of the tension spring 411 away from the shaft rod 405 is fixedly installed with a load-bearing rod 412, and the load-bearing rod 412 is fixedly installed at the rear end of the sliding groove 410.

[0023] In the process of pressing down through the barbell plate 2, the support rod 1 will be driven, so that the convex rods 401 on both sides will float downward, and the connected inclined curved rods 402 will also move downward, and then one end of the inclined curved rod 402 will cause a corner of the turning connecting plate 403 to move downward, and the bottom end will rely on the shaft rod 405 to slide and connect to the sliding groove 410. Under the pressure of gravity, the patient's knee joint can be pulled by the angle change at the bottom of the turning connecting plate 403 to cause it to undergo elastic deformation, and the deformed downward-pulling spring forms a reverse force under the movement of the joint connecting plate 413, thereby forming a reaction force with the barbell plate 2, which not only allows the patient to achieve knee straightening, but also avoids the situation where the joint movement is affected by objects of different gravity.

[0024] A joint connecting plate 413 is fixedly installed on one side surface of the two fixed support plates 407, and a pressure sensor 5 is electrically connected to the edge of one side of the outer arc surface of the joint connecting plate 413. The pressure sensor 5 is electrically connected to the support rod 1 and is adapted to the barbell plate 2.

[0025] The pressure sensor 5 can be used to monitor the patient's required gravity and perform the replacement.

[0026] In the utility model, the working steps of the device are as follows:

[0027] After the patient connects the knee to the joint connecting plate 413, because the lower surface of the joint connecting plate 413 is fixedly connected to the shaft seat 3, and one end of the shaft seat 3 is penetrated and connected with the support rod 1, and because the barbell plate 2 can be hung on the support rod 1, the support rod 1 will be driven during the downward pressure of the barbell plate 2, so that the convex rods 401 on both sides will float downward, and the connected oblique rods 402 will also move downward, and then one end of the oblique rod 402 will move a corner of the turning connecting plate 403 downward, and the bottom end will rely on the shaft rod 405 to slide and connect to the sliding groove 410, and the barbell plate will be lifted up under the support of gravity. 2, the patient's knee joint can be elastically deformed by pulling the tension spring 411 through the change in the bottom angle of the turning connecting plate 403, and the deformed spring forms a reverse force under the movement of the joint connecting plate 413, thereby forming a reaction force with the barbell plate 2, which not only allows the patient to straighten the knee joint, but also avoids the situation where the joint movement is affected by objects with different gravities. The sleeve connection of the joint connecting plate 413 also prevents the knee from being dislocated. At the same time, the gravity required by the patient can be monitored by the pressure sensor 5 for replacement.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Knee joint straightening assist device, including a support rod (1), characterized in that: On both sides of the outer arc surface of the support rod (1), barbell plates (2) are connected through and through. In the middle of the outer arc surface of the support rod (1), a shaft seat (3) is connected through and through. On both sides of the outer arc surface of the support rod (1), linkage components (4) are connected through and through. The linkage component (4) includes convex rods (401) connected through and through on both sides of the outer arc surface of the support rod (1). On both sides of one surface of the convex rod (401), inclined curved rods (402) are movably connected through a rotating shaft. One end of the inclined curved rod (402) far from the convex rod (401) is movably connected to a turning connecting plate (403). On one side of the turning connecting plate (403), there is a convex part (404). On one side of the convex part (404), a shaft rod (405) is connected through and through. In the middle of one surface of the turning connecting plate (403), a rotating connecting rod (406) is movably connected through a rotating shaft.

2. The knee joint straightening assist device according to claim 1, characterized in that: The number of the turning connecting plates (403) is two and they are distributed symmetrically in a mirror image. In the middle of the two turning connecting plates (403), a fixed support plate (407) is movably connected through a rotating shaft. The upper surface of the fixed support plate (407) is a hollow structure.

3. The knee joint straightening assist device according to claim 2, wherein: One side of the rotating connecting rod (406) far from the turning connecting plate (403) is movably connected to a movable support plate (408) through a rotating shaft. One end of the movable support plate (408) is provided with a lifting part. On the upper surface of the movable support plate (408), there is an extension part (409).

4. The knee joint straightening assistance device according to claim 3, characterized in that: One side of the extension part (409) is movably clamped with the rotating connecting rod (406) through a rotating shaft. On both sides of the extension part (409), sliding grooves (410) are opened. The outer arc surface of the shaft rod (405) penetrates and is connected into the sliding grooves (410).

5. The knee joint extension assisting device according to claim 4, wherein: The number of the movable support plates (408) is two and they are distributed symmetrically in a mirror image at both ends of the support rod (1). The outer arc surface of the shaft rod (405) is connected with a tension spring (411).

6. The knee joint extension assisting device according to claim 5, wherein: One end of the tension spring (411) far from the shaft rod (405) is fixedly installed with a bearing rod (412). The bearing rod (412) is fixedly installed at the rear end of the sliding groove (410).

7. The knee joint straightening assistance device according to claim 6, characterized in that: On one surface of the two fixed support plates (407), a joint connecting plate (413) is fixedly installed. On the outer arc surface of one edge of the joint connecting plate (413), a pressure sensor (5) is electrically connected. The pressure sensor (5) is electrically connected into the support rod (1) and is adapted to the barbell plate (2).

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