Knee joint brace

Abstract

The utility model discloses a knee joint brace, and belongs to the technical field of medical instruments. The angle limiting device mainly comprises an angle limiting device body, the angle limiting device body comprises a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are symmetrically assembled, a gap groove is formed in the rear side wall, two elastic clamping bases are installed on the side wall of the gap groove, and each elastic clamping base comprises a round kidney-shaped piece, a sliding groove, a limiting piece, a spring and a pressing piece. By combining light materials such as high-strength plastic and the like, the problem that the weight of the brace is too large due to a traditional iron piece is solved, so that the burden of a wearer is reduced, the use comfort is improved, meanwhile, the portability of the brace is enhanced, the brace is more suitable for being worn for a long time, and meanwhile, in order to guarantee the original hardness requirement, the brace is more comfortable to wear. The two protruding blocks are arranged on each of the two faces of the pressing piece and connected with the limiting inserting grooves formed in the front cover plate and the rear cover plate in an inserted mode, so that the hardness strength of the elastic clamping base in the using process is improved, and the service life is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a knee joint brace. BACKGROUND

[0002] A knee joint brace is a medical device used to support, protect and stabilize the knee joint. It is usually made of strong material and designed to reduce the burden on the knee joint, relieve pain, limit the range of motion or help restore function.

[0003] According to the search, the knee joint limiting brace disclosed in the publication number CN221786913U includes a first binding assembly, a second binding assembly, an angle limiter and a detection piece. The first binding assembly is used to bind and fix the thigh of the human body, and the first binding assembly has a first fixed plate. The second binding assembly is used to bind and fix the lower leg of the human body, and the second binding assembly has a second fixed plate. The second fixed plate is hinged with the first fixed plate through the angle limiter, the number of the angle limiter is two, and the angle limiter is arranged on one of the two angle limiters on the two sides of the knee joint when worn. The detection piece is arranged on one of the two angle limiters, and the detection piece is used to detect the included angle formed by the second fixed plate and the first fixed plate. By arranging the detection piece on one of the two angle limiters, the bending angle of the human knee joint can be detected, so that the activity of the wearer can be detected.

[0004] However, in order to ensure the support force of the knee joint brace on the upper and lower joints, the angle limiters in the existing knee joint brace are usually made of iron, which increases the weight of the knee joint brace and makes the wearer experience poor, and if plastic parts are used, the rigidity of the plastic parts is not enough, which shortens the service life and cannot well maintain the angle limit, and the angle deviation is easy to occur during walking.

[0005] Therefore, it is necessary to provide a knee joint brace to solve the above problems.

[0006] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a knee joint brace to solve the problems raised in the background technology.

[0008] The technical scheme adopted by the present application to solve its technical problems is:

[0009] A knee joint brace comprises an angle limiter, which comprises a front cover plate and a rear cover plate, the bottom side of the front cover plate and the rear cover plate is integrally formed with a connecting part, the inside of the connecting part is fixedly connected with a lower support plate, the center of the inner side wall of the front cover plate and the rear cover plate is integrally formed with a shaft, the side wall of the shaft is rotationally connected with the bottom of an upper support plate, the side wall of the front cover plate and the rear cover plate is provided with a gap slot after being symmetrically assembled, and the upper support plate is rotationally connected in the gap slot with the center of the shaft as the center;

[0010] The side wall of the gap slot is respectively provided with two elastic clamping seats, the elastic clamping seat comprises a round waist part, a sliding slot, a limiting part, a spring and a pressing part, the inside of the round waist part is provided with a sliding slot, the round waist part is sleeved with the side wall of the shaft in the sliding slot of the inside of the front cover plate and the rear cover plate, the limiting part is slidably connected in the sliding slot, one side of the limiting part abuts against the side wall of the shaft, the other side of the limiting part is clamped with one end of the spring, the other end of the spring is clamped with the side wall of the sliding slot, and the end side wall of the round waist part is integrally formed with the bottom side wall of the pressing part.

[0011] The inside of the front cover plate and the rear cover plate is provided with a plurality of limiting slots with equal angles, the two side walls of the pressing part are integrally formed with inserting parts, and the inserting parts are inserted into the inside of two limiting slots.

[0012] Preferably, the outside side wall of the front cover plate and the rear cover plate is provided with an annular groove, a pointer adjusting knob is slidably connected in the annular groove, and the outside side wall of the front cover plate and the rear cover plate is further provided with a scale line.

[0013] Preferably, the inside of the pointer adjusting knob is provided with a fixed slot, the end of the pressing part is inserted into the fixed slot and exposed outside the side wall of the pointer adjusting knob.

[0014] Preferably, the outside of the limiting part is integrally formed with an inserting plate, the side, away from the shaft, of the round waist part is provided with a giving slot, and the inserting plate is slidably connected with the inside of the giving slot.

[0015] Preferably, the inserting plate, the outside of the limiting part and the sliding slot form a second limiting slot, and one end of the spring is clamped in the second limiting slot.

[0016] Preferably, the end of the sliding slot, away from the shaft, is provided with a first limiting slot, and the other end of the spring is clamped in the first limiting slot.

[0017] Preferably, the inserting part comprises a protruding block and a clamping slot, the two sides of the pressing part are integrally formed with two protruding blocks, the gap between the two protruding blocks forms the clamping slot, and the two protruding blocks are inserted into the limiting slot.

[0018] Preferably, the end surface of the pressing part is provided with a wavy structure.

[0019] The beneficial effects of the present application are:

[0020] 1. By adopting the improved angle limiter structure combined with lightweight materials such as high-strength plastic, the problem of excessive weight of the brace caused by traditional iron parts is solved, which not only reduces the burden of the wearer and improves the comfort of use, but also enhances the portability of the brace, making it more suitable for long-term wear. At the same time, to ensure the original rigidity requirement, two protrusions are arranged on both sides of the pressing piece, and the limiting slot is opened in the inner part of the front cover plate and the rear cover plate, which increases the rigidity of the elastic seat during use, and ensures the service life.

[0021] 2. Through the adjustable angle range control mechanism of the elastic seat, the wearer can accurately adjust the activity angle of the knee joint according to their own needs, which improves the stability of the knee brace in different motion states, reduces the discomfort caused by the deviation of the angle of the brace during the activity, prolongs the service life of the brace, and ensures the functional effectiveness of the brace in the treatment and recovery stage.

[0022] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application.

[0024] In the drawings:

[0025] Figure 1 It is a whole schematic view of a knee joint brace of the present application;

[0026] Figure 2 It is a schematic view of the internal structure of the angle limiter of the present application;

[0027] Figure 3 It is a schematic view of the assembly structure of the rear cover plate and the elastic seat of the present application;

[0028] Figure 4 It is a schematic view of the structure of the elastic seat of the present application.

[0029] In the drawings, various reference signs are:

[0030] 1. Angle limiter; 11. Front cover plate; 12. Rear cover plate; 13. Connection part; 14. Annular groove; 15. Scale line; 16. Shaft; 17. Limiting slot;

[0031] 2. Upper support plate;

[0032] 3, the lower support plate;

[0033] 4, the pointer adjustment knob; 41, the fixed groove;

[0034] 5, the elastic card seat;

[0035] 51, the round waist spare; 511, the first limit slot;

[0036] 52, the sliding groove;

[0037] 53, the limiting piece; 531, the plugboard; 532, the second limit slot;

[0038] 54, the spring;

[0039] 55, the pressing piece; 551, the protruding block; 552, the clamping groove. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0041] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0042] Please refer to Figures 1-4 The embodiments provided by the present application have the following advantages:

[0043] A knee joint brace, comprising an angle limiter 1, the angle limiter 1 comprises a front cover plate 11 and a rear cover plate 12, the bottom side of the front cover plate 11 and the rear cover plate 12 is integrally formed with a connecting part 13, the connecting part 13 is internally inserted and fixedly installed with a lower support plate 3, the inner side wall center of the front cover plate 11 and the rear cover plate 12 is integrally formed with a shaft 16, the side wall of the shaft 16 is rotationally connected with the bottom of an upper support plate 2, the rear side wall of the front cover plate 11 and the rear cover plate 12 is provided with a gap groove after symmetrical assembly, the upper support plate 2 is rotationally connected in the gap groove with the shaft 16 as the center;

[0044] By rotating the upper support plate 2 in the gap groove, the angle between the upper support plate 2 and the lower support plate 3 can be adjusted, and the adjustment can be made according to the bending of the knee joint of the leg.

[0045] In order to control the angle amplitude between the upper support plate 2 and the lower support plate 3, the side walls of the gap groove are respectively provided with two elastic clamping seats 5, the elastic clamping seat 5 comprises a round waist piece 51, a sliding groove 52, a limiting piece 53, a spring 54 and a pressing piece 55, the inside of the round waist piece 51 is provided with the sliding groove 52, the round waist piece 51 is sleeved on the side wall of the shaft 16 inside the front cover plate 11 and the rear cover plate 12 through the sliding groove 52, the limiting piece 53 is slidably connected in the sliding groove 52, one side of the limiting piece 53 abuts against the side wall of the shaft 16, the other side of the limiting piece 53 is clamped with one end of the spring 54, the other end of the spring 54 is clamped with the side wall of the sliding groove 52, and the end side wall of the round waist piece 51 is integrally formed with the bottom side wall of the pressing piece 55.

[0046] The inside of the front cover plate 11 and the rear cover plate 12 is provided with a plurality of equi-angle limiting insertion grooves 17, and the two side walls of the pressing piece 55 are respectively integrally formed with insertion pieces which are inserted into the interiors of two limiting insertion grooves 17.

[0047] The specific angle amplitude adjustment mode is as follows:

[0048] By pressing the pressing piece 55, the pressing piece 55 drives the round waist piece 51 to slide to the inside of the upper cover plate and the lower cover plate, in the sliding process, the shaft 16 slides in the sliding groove 52 of the round waist piece 51, and the limiting piece 53 is driven to slide in the sliding groove 52, so as to compress the spring 54, so that the insertion pieces on the two sides of the pressing piece 55 are dislocated with the limiting insertion grooves 17 which are provided in a circle in the interiors of the upper cover plate and the lower cover plate, so as to rotate the two elastic clamping seats 5 in the gap groove, so as to adjust the angle between the two elastic clamping seats 5, when the pressing piece 55 in the pressing state is released, the round waist piece 51 and the pressing piece 55 are reset under the elastic force of the spring 54, so that the insertion pieces are inserted into the limiting insertion grooves 17 again, so that the two elastic clamping seats 5 cannot be freely rotated, the adjustment angle between the two elastic clamping seats 5 is fixed, and the swing amplitude of the upper support plate 2 in the gap groove is limited, so as to control the angle amplitude between the upper support plate 2 and the lower support plate 3.

[0049] In this process, in order to intuitively enable the wearer to better adjust the rotation amplitude of the joint according to the own demand, the outside side walls of the front cover plate 11 and the rear cover plate 12 are provided with a ring-shaped groove 14, a pointer adjusting knob 4 is slidably connected in the ring-shaped groove 14, the front cover plate 11 and the rear cover plate 12 are clamped by the pointer adjusting knob 4 which slides in the ring-shaped groove 14 on the side wall, so as to prevent the front cover plate 11 and the rear cover plate 12 from being cracked in the stress process, the outside side walls of the front cover plate 11 and the rear cover plate 12 are further provided with scale lines 15, the inside of the pointer adjusting knob 4 is provided with a fixed groove 41, the end of the pressing piece 55 is inserted into the fixed groove 41 and exposed outside the side wall of the pointer adjusting knob 4.

[0050] The pointer adjusting knob 4 is fixed by the annular groove 14 to prevent the pointer adjusting knob 4 from falling off the front cover plate 11 and the rear cover plate 12, and the end of the pressing piece 55 is inserted into the fixing groove 41, so that when the pressing piece 55 is pressed and rotated, the pointer adjusting knob 4 can be driven to slide on the side wall of the front cover plate 11 and the rear cover plate 12, so that the angle of adjustment can be determined by the pointer of the pointer adjusting knob 4 pointing to the scale line 15, to facilitate the wearer to use.

[0051] It is worth noting that the outer side of the limiting piece 53 is integrally formed with an insertion plate 531, and the side of the round waist piece 51 away from the shaft 16 is provided with a let-out groove, and the insertion plate 531 is in sliding connection with the inside of the let-out groove, so as to ensure that after the round waist piece 51 slides on the shaft 16 to drive the limiting piece 53 to slide in the sliding groove 52, the stability is maintained, and the dislocation from the sliding groove 52 is not easy to occur.

[0052] Further optimization, the insertion plate 531 and the outer side of the limiting piece 53 and the sliding groove 52 form a second limiting groove 532, one end of the spring 54 is clamped in the second limiting groove 532, and the other end of the spring 54 is clamped in the first limiting groove 511, in order to ensure that the two ends of the spring 54 are always tightly installed between the round waist piece 51 and the limiting piece 53, so as to prevent the spring 54 from being ejected from the round waist piece 51 and the limiting piece 53 during daily use, and the elastic clamping seat 5 cannot be reset.

[0053] It is worth noting that the insertion plate 531 and the outer side of the limiting piece 53 and the sliding groove 52 form a second limiting groove 532, one end of the spring 54 is clamped in the second limiting groove 532, and the other end of the spring 54 is clamped in the first limiting groove 511, in order to ensure that the two ends of the spring 54 are always tightly installed between the round waist piece 51 and the limiting piece 53, so as to prevent the spring 54 from being ejected from the round waist piece 51 and the limiting piece 53 during daily use, and the elastic clamping seat 5 cannot be reset.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A knee joint brace, comprising an angle limiter (1), characterized in that: The angle limiter (1) comprises a front cover plate (11) and a rear cover plate (12), a connecting portion (13) is integrally formed on one side of the bottom of the front cover plate (11) and the rear cover plate (12), a lower support plate (3) is fixedly installed inside the connecting portion (13), a shaft (16) is integrally formed at the center of the inner side wall of the front cover plate (11) and the rear cover plate (12), the side wall of the shaft (16) is rotatably connected to the bottom of the upper support plate (2), and a gap groove is provided on the side wall after the front cover plate (11) and the rear cover plate (12) are symmetrically assembled, and the upper support plate (2) is rotatably connected in the gap groove along the shaft (16) as the center of the circle; The side walls of the gap groove are respectively provided with two elastic holders (5), and the elastic holder (5) includes a round waist part (51), a slide groove (52), a limit part (53), a spring (54) and a pressing part (55). The inside of the round waist part (51) is provided with a slide groove (52), and the round waist part (51) is connected to the side wall of the shaft rod (16) inside the front cover plate (11) and the rear cover plate (12) through the slide groove (52). The limit part (53) is slidably connected in the slide groove (52), one side of the limit part (53) is in contact with the side wall of the shaft rod (16), and the other side of the limit part (53) is clamped with one end of the spring (54), and the other end of the spring (54) is clamped with the side wall of the slide groove (52). The end side wall of the round waist part (51) and the bottom side wall of the pressing part (55) are integrally formed; A plurality of equal-angled limiting slots (17) are provided on the inner side of the front cover (11) and the rear cover (12), and plug-in components are integrally formed on the side walls of the pressing member (55), and the plug-in components are plugged into the interior of two of the limiting slots (17).

2. The knee joint brace according to claim 1, characterized in that: An annular groove (14) is provided on the outer sidewalls of the front cover plate (11) and the rear cover plate (12), a pointer adjustment button (4) is slidably connected in the annular groove (14), and a scale line (15) is also provided on the outer sidewalls of the front cover plate (11) and the rear cover plate (12).

3. The knee joint brace according to claim 2, characterized in that: A fixing groove (41) is provided through the interior of the pointer adjustment button (4), and the end of the pressing member (55) is inserted into the fixing groove (41) and exposed outside the side wall of the pointer adjustment button (4).

4. The knee joint brace according to claim 1, characterized in that: An inserting plate (531) is integrally formed on the outer side of the limiting member (53), and a clearance groove is provided on the side of the round waist member (51) away from the shaft (16), and the inserting plate (531) is slidably connected to the inside of the clearance groove.

5. The knee joint brace according to claim 4, characterized in that: A second limiting groove (532) is formed between the inserting plate (531), the outer side of the limiting member (53) and the sliding groove (52), and one end of the spring (54) is clamped in the second limiting groove (532).

6. The knee joint brace according to claim 5, characterized in that: A first limiting groove (511) is provided at one end of the sliding groove (52) away from the shaft (16), and the other end of the spring (54) is clamped in the first limiting groove (511).

7. The knee joint brace according to claim 6, characterized in that: The plug-in connector comprises a protrusion (551) and a slot (552); two protrusions (551) are integrally formed on both sides of the pressing member (55); a gap between the two protrusions (551) forms the slot (552); and the two protrusions (551) are plugged into the limiting slot (17).

8. The knee joint brace according to claim 7, characterized in that: The end surface of the pressing member (55) is configured as a wave-shaped structure.

Images