Knee joint protection device for rheumatism patient

Abstract

The utility model relates to a rheumatism patient knee joint protection device, which comprises two braces and a plurality of bridles connected with the two braces, each brace comprises an upper support plate and a lower support plate, an angle adjusting chuck is arranged between the upper support plate and the lower support plate, the lower support plate is connected with the angle adjusting chuck through a connecting plate, and the connecting plate is connected with the lower support plate. An angle adjusting mechanism used for adjusting the angle between the lower supporting plate and the connecting plate is arranged between the lower supporting plate and the connecting plate. An angle adjusting mechanism used for adjusting the angle between the lower supporting plate and the connecting plate is arranged between the lower supporting plate and the connecting plate, so that the eccentric position of the lower supporting plate relative to an angle adjusting chuck can be adjusted within a certain range, and the angle adjusting chuck can be suitable for patients with different leg shapes to use; the protection device can be worn more comfortably by adjusting the eccentric position of the lower supporting plate, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to a device for non-surgical treatment of bones or joints, and more particularly to a knee joint protection device for rheumatism patients. Background Technology

[0002] Rheumatoid arthritis of the knee is a common type of rheumatoid arthritis that primarily affects the knee joint, restricting its flexion, extension, and rotation. During an acute flare-up of rheumatoid arthritis of the knee, the joint typically experiences significant pain, swelling, and fever. At this time, the synovium is inflamed, and there may be a large amount of fluid in the joint cavity. Excessive activity can exacerbate the inflammatory response, leading to increased pain and swelling, and further damage to the articular cartilage and surrounding tissues. Therefore, it is generally recommended that patients appropriately limit knee joint activity during acute flare-ups. If necessary, knee braces or plaster casts can be used for immobilization to reduce the burden on the joint and promote the resolution of inflammation.

[0003] In existing knee braces, the support plate located above or below the angle adjustment disc is usually eccentrically positioned. This is because the human leg often has a certain curve, and to accommodate this curve, the brace is not a straight line even at 0 degrees. However, there are exceptions. For example, in the knee fixation brace disclosed in patent application CN115553993B, the upper and lower fixing plates of the rotating mechanism 400 are not on the same straight line, with the lower fixing plate eccentrically positioned. Similarly, in a knee brace described in patent application CN117503455A, the first rotating support bar is also eccentrically positioned relative to the angle adjustment disc. In a knee rehabilitation brace described in patent application CN118217075A, neither the upper nor lower fixing plate is eccentrically positioned relative to the central rotation axis.

[0004] Although existing knee braces have eccentric support plates on the upper or lower side of the angle adjustment disc to adapt to the leg curve, the leg curves of different patients are different. Therefore, existing knee braces sometimes cannot adapt well to the shape of the patient's leg, resulting in poor brace wearing effect. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a knee joint protection device for rheumatism patients with an adjustable support plate.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A knee joint protection device for rheumatism patients includes two braces and multiple straps connecting the two braces. Each brace includes an upper support plate and a lower support plate. An angle adjustment chuck is provided between the upper support plate and the lower support plate. The lower support plate is connected to the angle adjustment chuck through a connecting plate. An angle adjustment mechanism for adjusting the angle between the lower support plate and the connecting plate is provided between the lower support plate and the connecting plate.

[0008] As one embodiment of this utility model, the angle adjustment mechanism includes a fixing pin connecting the lower support plate and the connecting plate, two or more positioning holes on the lower support plate, and limiting holes on the connecting plate that correspond one-to-one with the positioning holes. When the lower support plate and the connecting plate are adjusted to a preset angle, one positioning hole coincides with one limiting hole. A fixing component for limiting the rotation of the lower support plate and the connecting plate is provided between the positioning hole and the limiting hole.

[0009] In one embodiment of this utility model, the positioning holes include positioning hole one, positioning hole two, and positioning hole three; the limiting holes include limiting hole one, limiting hole two, and limiting hole three; the included angle between the lower support plate and the connecting plate is a first preset angle, and positioning hole one and limiting hole one coincide; the included angle between the lower support plate and the connecting plate is a second preset angle, and positioning hole two and limiting hole two coincide; the included angle between the lower support plate and the connecting plate is a third preset angle, and positioning hole three and limiting hole three coincide.

[0010] As one embodiment of this utility model, it also includes positioning hole four and limiting hole four, the included angle between the lower support plate and the connecting plate is a fourth preset angle, and positioning hole four and limiting hole four coincide.

[0011] In one embodiment of this utility model, the fixing component is a bolt or a spring pin.

[0012] In one embodiment of this utility model, the fixing component is a spring pin. A spring pin is provided at each limiting hole. After the spring pin restricts the lower support plate, the lower support plate can be rotated to adjust the angle. After the adjustment is in place, the corresponding spring pin automatically pops out and inserts the pin body into the positioning hole.

[0013] In one embodiment of this utility model, the first preset angle is 180 degrees, the second preset angle is 175 degrees, the third preset angle is 170 degrees, and the fourth preset angle is 165 degrees.

[0014] As one embodiment of this utility model, the upper end of the support is also provided with a connecting hole for connecting the suspension rope.

[0015] The beneficial effects of adopting the above technical solution are as follows:

[0016] The knee joint protection device for rheumatism patients provided by this utility model has an angle adjustment mechanism between the lower support plate and the connecting plate for adjusting the angle between the lower support plate and the connecting plate. In this way, the off-center position of the lower support plate relative to the angle adjustment chuck can be adjusted within a certain range, so as to adapt to the use of patients with different leg shapes. By adjusting the off-center position of the lower support plate, the protection device can be worn more comfortably and the use effect can be improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the inner side structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the outer side structure of this utility model.

[0019] Figure 3 This is a structural diagram showing the connection position between the connecting plate and the lower support plate.

[0020] Figure 4 This is a schematic diagram of the angle adjustment mechanism in the first position.

[0021] Figure 5 This is a schematic diagram of the angle adjustment mechanism in the second position.

[0022] Figure 6 This is a schematic diagram of the angle adjustment mechanism in the third position.

[0023] Figure 7 This is a schematic diagram of the angle adjustment mechanism in the fourth position.

[0024] Figure 8 This is a schematic diagram of the overall structure of the angle adjustment mechanism.

[0025] Figure 9 This is a schematic diagram of the inner surface structure of the angle adjustment mechanism.

[0026] Figure 10 This is a cross-sectional structural diagram of the spring pin.

[0027] The components include: 100 support, 1 strap, 2 strap buckle, 3 first protective pad, 4 upper support plate, 5 connecting hole, 6 second protective pad, 7 lower support plate, 7-1 positioning hole one, 7-2 positioning hole two, 7-3 positioning hole three, 7-4 positioning hole four, 8 connecting plate, 8-1 limiting hole one, 8-2 limiting hole two, 8-3 limiting hole three, 8-4 limiting hole four, 9 angle adjustment chuck, 9-1 angle adjustment knob, 10 spring pin, 10-1 housing, 10-2 pin body, 10-3 stop boss, 10-4 spring, 10-5 top cover, 10-6 handle, and 11 fixing pin. Detailed Implementation

[0028] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0029] like Figure 1 and Figure 2 The device shown is a knee joint protection device for rheumatism patients, which includes two braces 100 and multiple straps 1 connecting the two braces 100. Each brace 100 includes an upper support plate 4 and a lower support plate 7. An angle adjustment chuck 9 is provided between the upper support plate 4 and the lower support plate 7. The lower support plate 7 is connected to the angle adjustment chuck 9 through a connecting plate 8. An angle adjustment mechanism for adjusting the angle between the lower support plate 7 and the connecting plate 8 is provided between the lower support plate 7 and the connecting plate 8.

[0030] Both the upper support plate 4 and the lower support plate 7 are fixedly equipped with two strap buckles 2. There are four straps 1. One end of each strap 1 is fixedly connected to a strap buckle 2 on one of the supports 100, so that the support 100 and the strap 1 cannot be adjusted relative to each other. The other end of each strap 1 passes through the corresponding strap buckle 2 on another support 100, so that the other support 100 can be adjusted on the strap 1, thereby adjusting the distance between the two supports to accommodate patients with different leg sizes. A long strip-shaped first protective pad 3 is also fixedly installed inside the strap buckle 2; a circular or elliptical second protective pad 6 is installed inside the angle adjustment chuck 9.

[0031] The angle adjustment mechanism includes a fixing pin 11 connecting the lower support plate 7 and the connecting plate 8, two or more positioning holes on the lower support plate 7, and limiting holes on the connecting plate 8 that correspond one-to-one with the positioning holes. When the lower support plate 7 and the connecting plate 8 are adjusted to a preset angle, one positioning hole coincides with one limiting hole. A fixing component is provided between the positioning hole and the limiting hole to limit the rotation of the lower support plate 7 and the connecting plate 8.

[0032] During normal use, the lower support plate 7 and the connecting plate 8 are fixedly connected and cannot rotate freely. When it is necessary to adjust the included angle between the lower support plate 7 and the connecting plate 8, the restriction of the fixed parts is released, and the lower support plate 7 can be rotated. Since the connecting plate 8 can rotate relative to the angle adjustment chuck 9, although the lower support plate 7 rotates at a certain angle, the lower support plate 7 can still remain parallel to the upper support plate 4. It is only necessary to adjust the position of the two angle adjustment knobs 9-1 on the angle adjustment chuck 9 accordingly.

[0033] like Figure 3 As shown, the positioning holes include positioning hole one 7-1, positioning hole two 7-2, positioning hole three 7-3, and positioning hole four 7-4, and the limiting holes include limiting hole one 8-1, limiting hole two 8-2, limiting hole three 8-3, and limiting hole four 8-4; as Figure 4As shown, the angle between the lower support plate 7 and the connecting plate 8 is the first preset angle, and the positioning hole 7-1 and the limiting hole 8-1 coincide; Figure 5 As shown, the included angle between the lower support plate 7 and the connecting plate 8 is the second preset angle, and the positioning hole 7-2 and the limiting hole 8-2 coincide; as Figure 6 As shown, the angle between the lower support plate 7 and the connecting plate 8 is the third preset angle, and the positioning hole 3 7-3 and the limiting hole 3 8-3 coincide; as Figure 7 As shown, the angle between the lower support plate 7 and the connecting plate 8 is the fourth preset angle, and the positioning hole 4 7-4 and the limiting hole 4 8-4 coincide.

[0034] In a preferred embodiment, the first preset angle is 180 degrees, meaning that in this case, neither the lower support plate 7 nor the upper support plate 4 is eccentrically positioned, and they can be located on a straight line; the second preset angle is 175 degrees, the third preset angle is 170 degrees, and the fourth preset angle is 165 degrees.

[0035] like Figure 3 As shown, the limiting holes include limiting hole one 8-1, limiting hole two 8-2, limiting hole three 8-3 and limiting hole four 8-4, which are arranged circumferentially around the fixed pin 11, and the central angle between two adjacent limiting holes is 90 degrees.

[0036] Because the overall area of ​​the angle adjustment mechanism between the lower support plate 7 and the connecting plate is small, and the device bears the force that restricts leg movement, it requires good structural strength. Therefore, the positioning holes, limiting holes, and fixing components need to have sufficient dimensions to ensure structural strength. If only one limiting hole is provided, corresponding to multiple positioning holes, the small distance between the positioning holes and the rotation center, their large diameter, and small rotation angle will inevitably lead to a large overlap of the multiple positioning holes, making the structure unfeasible. To avoid the above problems, this embodiment preferably uses the following... Figure 3 The structure shown has a limiting hole for each different angle position, and the positions of the multiple limiting holes are set with a large distance. In this case, the corresponding multiple positioning holes will also have a large distance.

[0037] As another implementation method, a limiting hole and a positioning hole can be provided. The limiting hole is a round hole, and the positioning hole is an elongated arc-shaped hole. The two are fixed together by bolts. The angle can be adjusted by loosening the bolts, and fixed by tightening the bolts. This structure is simple and can achieve self-adjustment of the angle within a certain range, rather than a few fixed values. However, this structure is not convenient to operate, and the bolts are prone to loosening after being fixed.

[0038] Based on such Figures 3 to 7 The structural form shown in this embodiment is a bolt or spring pin 10 as the fixing component; for example... Figure 8 andFigure 9 As shown, in a preferred embodiment, the fixing component is a spring pin 10. A spring pin 10 is provided at each limiting hole. After the spring pin 10 releases its restriction on the lower support plate 7, the lower support plate 7 can rotate to adjust its angle. Once adjusted to the correct position, the corresponding spring pin 10 automatically pops out, inserting the pin body 10-2 into the positioning hole. Using the spring pin 10 as the fixing component is convenient. Since the spring pin has a certain volume, in this embodiment, the four limiting holes are evenly spaced, which also provides sufficient space for the installation of the spring pin 10.

[0039] like Figure 10 As shown, the spring pin 10 includes a tubular housing 10-1, a pin 10-2 passing through the housing 10-1, and a spring 10-4 disposed on the pin 10-2. The pin 10-2 is provided with a stop boss 10-3 that restricts the lower end of the spring 10-4. The housing 10-1 is provided with a top cover 10-5 at its upper end. The top cover 10-5 has an opening in the middle so that the upper end of the pin 10-2 can pass through and be fixedly connected to the handle 10-6. The top cover 10-5 restricts the upper end of the spring 10-4. Pulling the pin 10-2 upwards by the handle 10-6 causes the lower end of the pin 10-2 to rise as well, thus disengaging it from the positioning hole and releasing the restriction on the lower support plate 7. At this time, the spring 10-4 is compressed. When the lower support plate 7 rotates to the preset position, the corresponding limiting hole and positioning hole coincide. At this time, under the action of the spring 10-4, the pin 10-2 automatically pops out and extends into the positioning hole, restricting the rotation of the lower support plate 7 again and fixing the lower support plate 7.

[0040] As a further improvement, the upper end of the brace 100 is also provided with a connection hole 5 for connecting a sling. Patients with rheumatoid arthritis of the knee have difficulty walking and standing, so wearing a sling around the neck to help elevate leg movement can improve the situation when walking or standing. After the patient wears the knee joint protection device described in this embodiment, a sling (not shown in the figure) is worn around the neck, with both ends of the sling connected to the connection hole 5 at the upper end of the brace 100. By adjusting the length of the sling, the upper body can be used to help elevate leg movement when walking or standing, thereby reducing pressure on the knee.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A knee joint protection device for rheumatism patients, characterized by: It includes two braces (100) and a plurality of belts (1) connecting the two braces (100), the brace (100) includes an upper support plate (4) and a lower support plate (7), an angle adjusting chuck (9) is arranged between the upper support plate (4) and the lower support plate (7), the lower support plate (7) is connected with the angle adjusting chuck (9) through a connecting plate (8), an angle adjusting mechanism for adjusting the angle between the lower support plate (7) and the connecting plate (8) is arranged between the lower support plate (7) and the connecting plate (8), so that the eccentric position of the lower support plate relative to the angle adjusting chuck can be adjusted within a certain range to adapt to patients with different leg shapes. The angle adjusting mechanism includes a fixed pin shaft (11) connecting the lower support plate (7) and the connecting plate (8), two or more positioning holes arranged on the lower support plate (7), and limiting holes arranged on the connecting plate (8) corresponding to the positioning holes one by one, when the lower support plate (7) and the connecting plate (8) are adjusted to a preset angle, one positioning hole coincides with one limiting hole, and a fixing component for limiting the rotation of the lower support plate (7) and the connecting plate (8) is arranged between the positioning hole and the limiting hole.

2. The rheumatoid knee joint protection device according to claim 1, characterized in that: The positioning hole includes positioning hole one (7-1), positioning hole two (7-2) and positioning hole three (7-3), the limiting hole includes limiting hole one (8-1), limiting hole two (8-2) and limiting hole three (8-3); the included angle between the lower support plate (7) and the connecting plate (8) is a first preset angle, the positioning hole one (7-1) and the limiting hole one (8-1) coincide; the included angle between the lower support plate (7) and the connecting plate (8) is a second preset angle, the positioning hole two (7-2) and the limiting hole two (8-2) coincide; the included angle between the lower support plate (7) and the connecting plate (8) is a third preset angle, the positioning hole three (7-3) and the limiting hole three (8-3) coincide.

3. The rheumatoid knee joint protector according to claim 2, wherein: It also includes positioning hole four (7-4) and limiting hole four (8-4), the included angle between the lower support plate (7) and the connecting plate (8) is a fourth preset angle, the positioning hole four (7-4) and the limiting hole four (8-4) coincide.

4. The rheumatoid knee joint protector according to claim 1, wherein: The fixing component is a bolt or a spring pin (10).

5. The rheumatoid knee joint protector according to claim 4, wherein: The fixing component is a spring pin (10), a spring pin (10) is arranged at each limiting hole, after the spring pin (10) releases the limitation of the lower support plate (7), the lower support plate (7) can be rotated to adjust the angle, and after adjustment, the corresponding spring pin (10) automatically pops out to extend the pin body (10-2) into the positioning hole.

6. The rheumatoid knee joint protector according to claim 3, wherein: The first preset angle is 180 degrees, the second preset angle is 175 degrees, the third preset angle is 170 degrees, and the fourth preset angle is 165 degrees.

7. The rheumatoid knee joint protection device according to claim 1, wherein: The upper end of the brace (100) is further provided with a connecting hole (5) for connecting a lifting rope.

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