CN111329638A

CN111329638A - Knee joint brace

Info

Publication number: CN111329638A
Application number: CN202010150289.0A
Authority: CN
Inventors: 王聪; 柴建中; 张玉华; 杨贤罡; 徐起麟
Original assignee: HEBEI SPORTS SCIENCE RESEARCH INSTITUTE
Current assignee: HEBEI SPORTS SCIENCE RESEARCH INSTITUTE
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-06-26

Abstract

The invention provides a knee joint brace, which belongs to the technical field of orthopedic auxiliary medical instruments and comprises a thigh supporting plate, a shank supporting plate, a connecting block, a rotating rod and a fitting body, wherein binding bands are arranged on the thigh supporting plate and the shank supporting plate; the connecting block is connected with the thigh supporting plate, a cavity is formed in the connecting block, and the cavity is communicated with the connecting block to form a connecting port; one end of the rotation is positioned in the cavity, and the other end is connected with the crus supporting plate; the binding body is positioned in the cavity and connected with the rotating rod, and at least two ends of the binding body are contacted with the connecting block; according to the invention, through the matching of the thigh support plate, the shank support plate, the binding band, the connecting block, the rotating rod and the binding body, the tibia can axially rotate relative to the femur in the flexion and extension process of the knee joint; the rigging body can be at the cavity internal rotation, and the dwang can rotate round self axis, and the relative femoral axial rotation activity of shin bone of being convenient for helps recovering the normal joint activity of shin bone joint and reduces patient's pain and knee joint bounce.

Description

Knee joint brace

Technical Field

The invention belongs to the technical field of orthopedic auxiliary medical instruments, and particularly relates to a knee joint brace.

Background

The tibia axially rotates relative to the femur in a directional manner in the flexion and extension process of the knee joint, and the biological characteristic is an important element for maintaining the normal physiological function of the knee joint and is more favorable for maintaining the stability of the knee joint; clinically, conservative treatment after knee joint injury or early-stage patients after orthopedic knee joint surgery usually adopt an adjustable knee joint brace to be fixed around the knee joint, and an external fixing device for limiting the moving angle of the knee joint is adopted; however, the existing adjustable knee brace can only complete flexion and extension movements, so that the axial rotation movement of the tibia relative to the femur during the flexion and extension movements of the knee joint is limited, the knee joint injury patient only recovers the flexion and extension functions of the knee joint at the later stage, the axial rotation movement of the tibia relative to the femur is still limited, and the patient can feel pain and the knee joint can bounce; on the other hand, the tibial joint can not return to normal joint movement, so that not only can the medial meniscus and the lateral meniscus be damaged, but also the whole biological force line of the lower limb can be influenced, and a series of health problems are caused.

Disclosure of Invention

The invention aims to provide a knee joint brace, and aims to solve the technical problem that the axial rotation of a tibia relative to a femur is limited in the use process of the conventional adjustable knee joint brace.

In order to achieve the purpose, the invention adopts the technical scheme that: the knee joint brace comprises a thigh supporting plate and a shank supporting plate, wherein the thigh supporting plate and the shank supporting plate are respectively provided with a binding band for binding a leg, and the knee joint brace further comprises a connecting block, a rotating rod and a binding body; the connecting block is connected with the thigh supporting plate, a cavity is formed in the connecting block, and the cavity is communicated with the connecting block to form a connecting port for flexion and extension movement; one end of the rotation is positioned in the cavity, and the other end of the rotation is connected with the shank supporting plate and is used for moving along the length direction of the connecting port; the rigging body is located in the cavity and with the dwang is connected, and at least both ends with the connecting block contact is used for the cavity internal rotation.

As another embodiment of this application, the cavity is a spherical structure, the fitting body is a spherical structure, and the spherical structure contacts with the connecting block.

As another embodiment of the present application, the rotating lever is in contact with a side wall of the connecting port.

As another embodiment of the application, a fixing device for fixing the rotating rod after movement is arranged on the connecting block.

As another embodiment of the present application, the fixing device includes fixing plates disposed at both sides of the connection port and a U-shaped plate connecting the two fixing plates; the fixing plate is connected with the connecting block, a plurality of fixing holes are formed in the fixing plate, the U-shaped plate is provided with inserting columns, one ends of the inserting columns are connected with the U-shaped plate, and the other ends of the inserting columns are used for being inserted into the fixing holes.

As another embodiment of this application, be equipped with on the U-shaped plate and be used for the breach that the dwang was put into.

As another embodiment of the application, a dust cover is arranged at the connecting port of the connecting block, and two ends of the dust cover are respectively connected with two ends of the connecting port; and the dust cover is provided with a through hole for the rotating rod to penetrate out.

As another embodiment of this application, the arc wall has been seted up to the lateral wall of connector, be equipped with on the dust cover a plurality of being used for gliding guide post in the arc wall, the one end of guide post with the dust cover is connected, and the other end is located in the arc wall.

As another embodiment of the present application, the number of the thigh supporting plates and the number of the shank supporting plates are two, and the two thigh supporting plates and the two shank supporting plates are used for being placed on two sides of the leg.

As another embodiment of the application, the thigh support plate and the shank support plate are both provided with adjusting holes for the straps to pass through, and the straps are used for being in sliding connection with the adjusting holes.

The knee joint brace provided by the invention has the beneficial effects that: compared with the prior art, the knee joint brace is characterized in that the thigh supporting plate is placed at the position of a thigh, the thigh supporting plate is tied on the thigh through the binding band, the shank supporting plate is placed at the position of a shank, and the shank supporting plate is tied on the shank through the binding band through the matching of the thigh supporting plate, the shank supporting plate, the binding band, the connecting block, the rotating rod and the binding body; the shank supporting plate and the rotating rod move together along the length direction of the connecting port, so that the flexion and extension movement of the knee joint is completed; in the flexion and extension process of the knee joint, the tibia can axially rotate relative to the femur; the both ends of the rigging body contact with the lateral wall of cavity all the time, and the rigging body can be at the cavity internal rotation, consequently, the dwang can rotate round self axis, and the relative thighbone axial of the shin bone of being convenient for rotates the activity to reduce patient's pain and knee joint ring, also can reduce the damage that produces the inside and outside meniscus, the patient's of being convenient for rehabilitation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a knee brace according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a connecting block portion of a knee brace according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is an enlarged view of a U-shaped plate portion of a knee brace according to an embodiment of the present invention.

In the figure: 1. a thigh support plate; 11. a first fixed column; 12. an adjustment hole; 2. a shank support plate; 21. a second fixed column; 3. binding bands; 4. connecting blocks; 41. a cavity; 42. a connecting port; 421. an arc-shaped slot; 5. rotating the rod; 6. a bonded body; 7. a fixing device; 71. a fixing plate; 711. a fixing hole; 72. a U-shaped plate; 721. inserting the column; 722. opening the gap; 8. a dust cover; 81. and a guide post.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 5, a knee joint brace according to the present invention will now be described. A knee joint brace comprises a thigh supporting plate 1 and a shank supporting plate 2, wherein the thigh supporting plate 1 and the shank supporting plate 2 are both provided with a bandage 3 for binding a leg, and the knee joint brace further comprises a connecting block 4, a rotating rod 5 and a fitting body 6; the connecting block 4 is connected with the thigh supporting plate 1, a cavity 41 is formed inside the connecting block 4, and the cavity 41 is communicated with the connecting block 4 to form a connecting port 42 for flexion and extension movement; one end of the rotation is positioned in the cavity 41, and the other end is connected with the crus supporting plate 2 and is used for moving along the length direction of the connecting port 42; the fitting body 6 is located in the cavity 41 and connected to the rotating rod 5, and at least two ends of the fitting body are in contact with the connecting block 4 for rotating in the cavity 41.

Compared with the prior art, the knee joint brace provided by the invention has the advantages that the thigh supporting plate 1 is placed at the position of a thigh, the thigh supporting plate 1 is bound on the thigh through the binding belt 3, the calf supporting plate 2 is placed at the position of a calf, and the calf supporting plate 2 is bound on the calf through the binding belt 3 through the matching of the thigh supporting plate 1, the calf supporting plate 2, the bandage 3, the connecting block 4, the rotating rod 5 and the binding body 6; the shank supporting plate 2 and the rotating rod 5 move together along the length direction of the connecting port 42, so that the flexion and extension of the knee joint are completed; in the flexion and extension process of the knee joint, the tibia can axially rotate relative to the femur; the both ends of the rigging body 6 contact with the lateral wall of cavity 41 all the time, and the rigging body 6 can be at 41 internal rotations in cavity, consequently, dwang 5 can rotate round self axis, and the relative thighbone axial rotation activity of shin bone of being convenient for helps resumeing the normal joint activity of shin bone joint and reduces patient's pain and knee joint and makes a sound, also can reduce the damage that produces the interior outer meniscus, the patient's of being convenient for rehabilitation.

As an embodiment of the knee joint brace according to the present invention, please refer to fig. 1 to 5, in which the cavity 41 is a spherical structure, the attachment body 6 is a spherical structure, and the spherical structure contacts with the connecting block 4; the jointing body 6 is fixedly connected with the rotating rod 5; a first fixing column 11 is arranged between the connecting block 4 and the thigh supporting plate 1, one end of the first fixing column 11 is fixedly connected with the thigh supporting plate 1, and the other end of the first fixing column 11 is fixedly connected with the connecting block 4; a second fixing column 21 is arranged between the rotating rod 5 and the crus supporting plate 2, one end of the second fixing column 21 is fixedly connected with the rotating rod 5, and the other end of the second fixing column 21 is fixedly connected with the crus supporting plate 2; the connecting port 42 is arc-shaped, and the rotating rod 5 moves along the arc-shaped direction of the connecting port 42, so that the bending and stretching actions can be conveniently completed; the laminating of sphere structure 6 and the lateral wall contact of cavity 41, the laminating of being convenient for 6 is at cavity 41 internal motion, laminating 6 follows dwang 5 along connector 42's arc direction motion in-process promptly, laminating 6 can also be at cavity 41 internal rotation, the dwang 5 of being convenient for rotates along self axis, thereby be convenient for adapt to the relative femoral axial rotation of shin bone, avoid causing the joint stiffness problem that the normal joint activity of knee joint is limited and produce because of the braking, the patient's of being convenient for recovery.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 5, the rotating rod 5 is in contact with the side wall of the connecting port 42, and the outer wall of the rotating rod 5 is in contact with the side wall of the connecting port 42 to facilitate the limiting of the rotating rod 5, so as to reduce the lateral movement of the rotating rod 5 on the connecting port 42; medical textile material layers used for being in contact with the legs are arranged on the thigh supporting plate 1 and the shank supporting plate 2, and the positions, close to the legs, of the connecting blocks 4 are also provided with the medical textile material layers; through medical textile material layer and shank contact, can reduce the uncomfortable between shank and this device, the shank of patient is tied up to this device of being convenient for.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 5, a fixing device 7 for fixing the rotating rod 5 after movement is disposed on the connecting block 4, so that a certain angle needs to be maintained in the knee joint of a patient in early stage after clinical conservative treatment after knee joint injury or orthopedic knee joint surgery, and the position of the rotating rod 5 after rotation can be fixed by the fixing device 7, so as to fix the knee joint at a certain angle.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 5, the fixing device 7 includes fixing plates 71 disposed at two sides of the connection port 42 and a U-shaped plate 72 connecting the two fixing plates 71; the fixing plate 71 is fixedly connected with the connecting block 4, a plurality of fixing holes 711 are formed in the fixing plate 71, inserting columns 721 are arranged on the U-shaped plate 72, one ends of the inserting columns 721 are fixedly connected with the U-shaped plate 72, and the other ends of the inserting columns are used for being inserted into the fixing holes 711; the number of the inserting columns 721 is two on the U-shaped plate 72, and the two inserting columns 721 are respectively inserted into the corresponding fixing holes 711 on the two fixing plates 71; the U-shaped plates 72 are elastic, when the rotating rod 5 is fixed, two U-shaped plates 72 are required to be respectively arranged at two sides of the moving path of the rotating rod 5, the two U-shaped plates 72 are in contact with the rotating rod 5, and the insertion columns 721 on the U-shaped plates 72 are inserted into the fixing holes 711 on the fixing plate 71; the movement of the rotating rod 5 can be limited by the U-shaped plates 72 respectively disposed at both sides of the rotating rod 5, thereby facilitating the fixation of the knee joint at a certain angle; scales are marked on each fixing hole 711, wherein the fixing hole 711 marked with 0 degree is positioned at the lowest part of the joint, and the joint is in a straightening position when the angle is minus 10 degrees; when the knee joint needs to move in the range of 30 degrees to 60 degrees, one U-shaped plate 72 is fixed at the position of the fixing hole 711 of 30 degrees, and the other U-shaped plate 72 is fixed at the position of the fixing hole 711 of 60 degrees; by analogy, the knee joint can move at any starting and ending angle within the range of-10 degrees to 120 degrees.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 5, a notch 722 for placing the rotating rod 5 is disposed on the U-shaped plate 72, and a part of the rotating rod 5 is located in the notch 722, so that the connection between the rotating rod 5 and the U-shaped plate 72 can be strengthened, and the U-shaped plate 72 can limit the position of the rotating rod 5.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, a dust cover 8 is disposed at the connection port 42 of the connection block 4, and two ends of the dust cover 8 are respectively connected to two ends of the connection port 42; the dust cover 8 is provided with a through hole for the rotating rod 5 to penetrate out; the dust cover 8 is foldable and has elasticity; dust cover 8 on connecting block 4 can play the effect of protection to connector 42, at dwang 5 along connector 42's pitch arc direction slip in-process, can reduce the impurity that falls into cavity 41 from connector 42, the laminating body 6 of being convenient for rotates in cavity 41 to be convenient for dwang 5 along connector 42's pitch arc direction slip and be convenient for rotate around self axis, can adapt to the relative femoral axial rotation activity of shin bone.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, an arc-shaped groove 421 is formed on a side wall of the connection port 42, a plurality of guide posts 81 for sliding in the arc-shaped groove 421 are disposed on the dust cover 8, one end of each guide post 81 is connected to the dust cover 8, and the other end is located in the arc-shaped groove 421; the guide posts 81 are arranged on two sides of the dust cover 8 and fixedly connected with the dust cover 8; the guide posts 81 are slidably connected in the arc-shaped grooves 421, so that the connection between the two sides of the dust cover 8 and the connecting ports 42 can be enhanced, and the sundries entering the cavities 41 from the two sides of the connecting ports 42 can be reduced; meanwhile, the guide posts 81 can guide the movement of the dust cover 8, so that the dust cover 8 can conveniently close the connecting port 42.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, two thigh support plates 1 and two shank support plates 2 are provided, and the two thigh support plates 1 and the two shank support plates 2 are used for being placed on two sides of a leg; the two thigh supporting plates 1 are respectively arranged at the two sides of the thigh and bound through the binding belt 3, and the two shank supporting plates 2 are respectively arranged at the two sides of the shank and bound through the binding belt 3; one thigh supporting plate 1 corresponds to one shank supporting plate 2, each shank supporting plate 2 moves around the corresponding thigh supporting plate 1 in the flexion and extension movement process, and the binding bands 3 are flexible, so that the axial rotation movement of the tibia relative to the femur can be adapted, the flexion and extension actions of the knee joint are facilitated, and the bounce of the knee joint in the flexion and extension process is reduced.

As a specific implementation manner of the embodiment of the invention, referring to fig. 1 to 5, the thigh support plate 1 and the calf support plate 2 are both provided with adjusting holes 12 for the straps 3 to pass through, the straps 3 are used for being slidably connected with the adjusting holes 12, the straps 3 are fixedly provided with sticky buckles, and the straps 3 are bonded by the sticky buckles, so that the thigh support plate 1 and the calf support plate 2 are conveniently fixed on the legs; in the process that the shank support plate 2 moves around the axis along the rotating rod 5, although the binding bands 3 are flexible, the forces applied to the binding bands 3 on the two sides of the shank support plate 2 are different; through the slip of bandage 3 on adjusting hole 12, can make the bandage 3 atress of shank backup pad 2 both sides equalling after shank backup pad 2 axial rotates, be convenient for bandage 3 with shank backup pad 2 tie up on the shank.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a knee joint brace, includes thigh backup pad (1) and shank backup pad (2), thigh backup pad (1) with all be provided with on shank backup pad (2) and be used for binding bandage (3) of shank, its characterized in that still includes:

the connecting block (4) is connected with the thigh supporting plate (1), a cavity (41) is formed in the connecting block, and the cavity (41) is communicated with the connecting block (4) to form a connecting port (42) for flexion and extension movement;

one end of the rotating rod (5) is positioned in the cavity (41), and the other end of the rotating rod is connected with the shank supporting plate (2) and is used for moving along the length direction of the connecting port (42); and

the fitting body (6) is located in the cavity (41) and connected with the rotating rod (5), and at least two ends of the fitting body are in contact with the connecting block (4) and used for rotating in the cavity (41).

2. A knee brace according to claim 1, wherein the cavity (41) is of spherical configuration and the abutment body (6) is of spherical configuration, the spherical configuration being in contact with the connecting piece (4).

3. A knee brace according to claim 2, wherein the swivelling levers (5) are in contact with the side walls of the connection port (42).

4. A knee brace according to claim 1, wherein the connecting block (4) is provided with fixing means (7) for fixing the rotating lever (5) after movement.

5. A knee brace according to claim 4, wherein the fixing means (7) comprise fixing plates (71) arranged on both sides of the connection port (42) and a U-shaped plate (72) connecting the two fixing plates (71); the fixing plate (71) is connected with the connecting block (4), a plurality of fixing holes (711) are formed in the fixing plate (71), inserting columns (721) are arranged on the U-shaped plate (72), one ends of the inserting columns (721) are connected with the U-shaped plate (72), and the other ends of the inserting columns are used for being inserted into the fixing holes (711).

6. A knee brace according to claim 5, wherein the U-shaped plate (72) is provided with a notch (722) for insertion of the swivelling lever (5).

7. The knee joint brace according to claim 1 or 2, wherein a dust cover (8) is arranged at the connecting port (42) of the connecting block (4), and two ends of the dust cover (8) are respectively connected with two ends of the connecting port (42); and the dust cover (8) is provided with a through hole for the rotating rod (5) to penetrate out.

8. The knee joint brace according to claim 7, wherein the side wall of the connection opening (42) is provided with an arc-shaped groove (421), the dust cover (8) is provided with a plurality of guide posts (81) for sliding in the arc-shaped groove (421), one end of each guide post (81) is connected with the dust cover (8), and the other end is located in the arc-shaped groove (421).

9. A knee brace according to claim 1, wherein there are two thigh support plates (1) and two calf support plates (2), both thigh support plates (1) and calf support plates (2) being intended to be placed on either side of a leg.

10. The knee joint brace according to claim 9, wherein the thigh support plate (1) and the calf support plate (2) are both provided with adjustment holes (12) for the straps (3) to pass through, and the straps (3) are used for being slidably connected with the adjustment holes (12).