WO2022017493A1

WO2022017493A1 - Knee-joint orthopedic brace

Info

Publication number: WO2022017493A1
Application number: PCT/CN2021/108100
Authority: WO
Inventors: 王金武; 万克明; 许苑晶; 吴萍; 柳毅浩; 刘同有; 戴尅戎
Original assignee: 上海交通大学医学院附属第九人民医院; 上海交通大学; 上海交大知识产权管理有限公司
Priority date: 2020-07-24
Filing date: 2021-07-23
Publication date: 2022-01-27
Also published as: AU2021104492A4

Abstract

A knee-joint orthopedic brace, comprising a thigh support (1), a shank support (2), and two intermediate connecting members (3). The two intermediate connecting members (3) are arranged on two sides of the thigh support (1) and the shank support (2); each intermediate connecting member (3) comprises an upper connecting part (31), an intermediate connecting part (32), and a lower connecting part (33) which are connected in sequence, the upper connecting part (31) comprises a fixed plate (311), a sliding plate (312), and a fixing unit (313), the sliding plate (312) is slidably coupled to the fixed plate (311), the fixing unit (313) is used for fixing the fixed plate (311) and the sliding plate (312), the sliding plate (312) is connected to the thigh support (1), the fixed plate (311) is connected to the intermediate connecting part (32), and the lower connecting part (33) is connected to the shank support (2). The lengths of both sides of the knee-joint orthopedic brace are easy to adjust, so that a patient can conveniently wear and adjust the orthopedic brace.

Description

A knee orthopaedic brace

technical field

The invention relates to the field of medical rehabilitation equipment, in particular to a knee joint orthopaedic brace.

Background technique

Knee osteoarthritis is one of the most common diseases in orthopaedics, mainly manifested as knee cartilage degeneration and bone hyperplasia. In the course of the disease, the imbalance of lower extremity alignment is the main cause of knee osteoarthritis. When the disease develops to the end stage, it can only be treated by knee osteotomy or knee replacement. In addition to the high cost and long postoperative recovery period of surgical treatment, for younger patients, there may be the risk of secondary surgery to replace the prosthesis. Therefore, the use of conservative treatment to slow down the progression of the disease has become one of the important treatments for knee osteoarthritis. The knee orthopaedic brace can redistribute the force on both sides of the knee joint by applying different orthopedic forces on both sides of the knee joint, thereby correcting the lower limb line of force, reducing the load on the affected knee joint compartment, without reducing comfort. down to relieve pain.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an orthopedic brace for knee joints, which solves the problem of difficulty in bilateral adjustment, and enables patients to conveniently wear and adjust the orthopedic brace by themselves.

In order to achieve the above purpose and other related purposes, the present invention provides a knee joint orthopaedic brace, comprising a thigh support, a calf support and two intermediate connectors;

The two intermediate connectors are arranged on both sides of the thigh support and the calf support;

The intermediate connecting piece includes an upper connecting part, an intermediate connecting part and a lower connecting part which are connected in sequence, the upper connecting part includes a fixing plate, a sliding plate and a fixing unit, the sliding plate is slidably sleeved with the fixing plate, so The fixing unit is used for fixing the fixing plate and the sliding plate, the sliding plate is connected with the thigh support, the fixing plate is connected with the middle connecting part, and the lower connecting part is connected with the calf support piece connection.

Preferably, the fixing plate includes a first unit of the fixing plate, a connecting shaft and a second unit of the fixing plate connected in sequence from the distal end of the intermediate connecting portion to the end of the proximal intermediate connecting portion; A unit and the second unit of the sliding plate at the distal end of the connecting part; the first unit of the sliding plate is slidably sleeved with the first unit of the fixing plate, and the second unit of the sliding plate is connected with the thigh support.

More preferably, it also includes at least one of the following technical features:

1) The first unit of the fixing plate is provided with a plurality of first through holes of the fixing plate, the first unit of the sliding plate is provided with the first through holes of the sliding plate matching the first through holes of the fixing plate, and the fixing plate The unit realizes the connection between the fixed plate and the sliding plate through the first through hole of the fixed plate and the first through hole of the sliding plate;

2) The second unit of the sliding plate is provided with a plurality of second through holes of the sliding plate and a plurality of fixing units of the sliding plate, and the thigh support is provided with a through hole of the thigh support that matches the second through hole of the sliding plate and the sliding plate fixing unit realizes the connection between the second sliding plate unit and the thigh supporting member through the second through hole of the sliding plate and the through hole of the thigh support member.

Preferably, it also includes at least one of the following technical features:

1) The thigh support and the calf support are both U-shaped opening structures and the opening direction faces the front side of the leg;

2) The thigh support is provided with a thigh support surface, and the thigh support surface is fitted with the outer surface of the patient's thigh; the calf support is provided with a calf support surface, and the calf support surface is fitted with the outer surface of the patient's calf.

More preferably, the thigh support is provided with a hollow portion of the thigh support, and the calf support is provided with a hollow portion of the calf support.

Preferably, the intermediate connecting portion includes a double-axle chassis, a first limit buckle for limiting the rotation range of the upper connecting portion, and a second limiting buckle for limiting the rotation range of the lower connecting portion. Limiting buckle, the dual-axis chassis is provided with an accommodating cavity for accommodating the rotation of the upper connecting part and the lower connecting part, and the dual-axis chassis and the upper connecting part are buckled through the first limit Rotationally connected, the dual-axis chassis and the lower connecting portion are rotatably connected through the second limit buckle.

1) The double-axle chassis includes a first layer board, a second layer board and a connecting wall for position limiting, and the connecting wall is arranged on the same side of the first layer plate and the second layer plate, so The first layer board is connected with the second layer board through the connecting wall;

2) The rotation range of the upper connecting part is 0°～80°;

3) The rotation range of the lower connecting part is 0°～90°.

1) The first limit buckle includes a first connection stud, a first limit connection unit and a first limit protrusion, and one end of the first limit connection unit is connected to the first connection stud , the other end is connected with the first limiting protrusion; the dual-axis chassis is provided with a first connecting through hole corresponding to the first connecting stud, and the first connecting stud penetrates the first connection a through hole, the dual-axis chassis is provided with a plurality of first limiting holes around the first connecting through hole, and the first limiting protrusion penetrates the first limiting hole;

2) The second limit buckle includes a second connection stud, a second limit connection unit and a second limit protrusion, and one end of the second limit connection unit is connected to the second connection stud , the other end is connected with the second limiting protrusion; the double-axis chassis is provided with a second connecting through hole corresponding to the second connecting stud, and the second connecting stud penetrates the second connection a through hole, the dual-axis chassis is provided with a plurality of second limiting holes around the second connecting through hole, and the second limiting protrusions penetrate through the second limiting holes.

Further more preferably, it also includes at least one of the following technical features:

11) In feature 1), the fixing plate is provided with a second through hole of the fixing plate corresponding to the first connecting through hole, the first connecting stud passes through the second through hole of the fixing plate, and the fixing plate The plate is provided with a fixing plate notch for providing a movable space of the first limiting protrusion, and the fixing plate notch is provided with a fixing plate limiting baffle wall for limiting the movable range of the first limiting protrusion;

12) In feature 1), the connection mode of the first connecting stud and the biaxial chassis is active riveting;

13) In feature 1), in the accommodating cavity, a plurality of first anti-wear gaskets are arranged on the first connecting stud near the biaxial chassis;

21) In feature 2), the lower connecting portion is provided with a first connecting through hole of the lower connecting portion corresponding to the second connecting through hole, and the second connecting stud penetrates the second connecting through hole, so The lower connecting portion is provided with a lower connecting portion notch that provides an active space for the second limiting protrusion, and the lower connecting portion notch is provided with a lower connecting portion limit stop for limiting the movable range of the second limiting protrusion. wall;

22) In feature 2), the connection mode of the second connection stud and the biaxial chassis is active riveting;

23) In feature 2), in the accommodating cavity, a plurality of second anti-wear gaskets are arranged on the second connecting stud near the biaxial chassis.

Preferably, the lower connecting portion is provided with a plurality of second connecting through holes of the lower connecting portion and a lower connecting portion fixing unit, and the lower leg supporting member is provided with a lower leg supporting member matched with the second connecting through holes of the lower connecting portion a through hole, the lower connecting part fixing unit realizes the connection between the lower connecting part and the lower leg support through the second connecting through hole and the through hole of the lower leg support.

The above technical solution has at least one of the following beneficial effects:

1) After knee osteoarthritis, knee varus and other diseases wear the knee orthopaedic brace, it can reduce the pressure of the knee joint compartment on the narrower side, delay the further development of the disease in the affected side compartment, delay or avoid operation treatment.

2) After wearing the knee joint orthopaedic brace, the pain caused by the uneven distribution of pressure on the inside and outside of the knee joint is reduced, and the knee joint is relieved by the knee joint orthopaedic brace and the lower limb alignment is corrected, thereby improving the quality of life of the patient.

3) The knee joint orthopedic brace has a more convenient orthopedic adjustment device, and the length of both sides is easy to adjust, so that the patient can easily wear and adjust it by himself, reducing the adjustment time for the patient, increasing the patient's compliance, and improving the treatment effect.

4) The thigh support and the calf support in the knee joint orthopedic brace are both U-shaped opening structures and the opening direction faces the front side of the leg, which improves the wearing comfort of the patient and reduces the slippage frequency of the knee joint orthopedic brace.

Description of drawings

FIG. 1 is a schematic structural diagram of a knee joint orthopaedic brace of the present invention.

2 is a schematic structural diagram of a thigh support in the knee joint orthopaedic brace of the present invention.

3 is a schematic structural diagram of a calf support in the knee joint orthopaedic brace of the present invention.

FIG. 4 is a schematic structural diagram of an intermediate connector in the knee joint orthopaedic brace of the present invention.

5 is a schematic structural diagram of the upper connecting portion of the knee joint orthopaedic brace of the present invention.

6 is a schematic structural diagram of a fixing plate in the knee joint orthopaedic brace of the present invention.

7 is a schematic structural diagram of a sliding plate in the knee joint orthopaedic brace of the present invention.

8 is a schematic structural diagram of the middle and lower connecting parts of the knee joint orthopaedic brace of the present invention.

9 is a schematic structural diagram of a biaxial chassis in the knee joint orthopaedic brace of the present invention.

10 is a schematic structural diagram of the first limit buckle and the second limit buckle in the knee joint orthopaedic brace of the present invention.

reference number

1 Thigh support

11 Thigh support through hole

12 The hollow part of the thigh support

2 calf supports

21 The hollow part of the calf support

22 calf support through hole

3 Intermediate connector

31 Upper connecting part

311 Fixing plate

3111 The first unit of the fixed plate

31111 The first through hole of the fixing plate

3112 Connecting shaft

3113 Fixed plate second unit

3114 The second through hole of the fixing plate

3115 Fixing plate gap

3116 Fixed plate limit wall

312 Slide Plate

3121 The first unit of the sliding plate

31211 The first through hole of the sliding plate

3122 The second unit of the sliding plate

31221 The second through hole of the sliding plate

31222 Sliding plate fixing unit

313 Fixed unit

32 Intermediate connection

321 Dual-axle chassis

3211 accommodating cavity

3212 First layer board

3213 Second layer board

3214 Connecting wall

3215 The first connection through hole

3216 The first limit hole

3217 Second connection through hole

3218 Second limit hole

322 The first limit buckle

3221 First connection stud

3222 The first limit connection unit

3223 The first limit protrusion

3224 The first anti-wear gasket

323 Second limit buckle

3231 Second connecting stud

3232 The second limit connection unit

3233 Second limit protrusion

3234 Second anti-wear gasket

33 Lower connection part

331 The first connecting through hole of the lower connecting part

332 The lower connecting part gap

333 Limiting wall of lower connecting part

334 The second connecting through hole of the lower connecting part

335 Lower connecting part fixing unit

detailed description

In the description of the present invention, it should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology , is not used to limit the conditions that the present invention can be implemented, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size will not affect the effect that the present invention can produce and the achievement that can be achieved. For the purpose, all should still fall within the scope that the technical content disclosed in the present invention can cover. Also the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

A knee joint orthopaedic brace, as shown in Figure 1, Figure 4 and Figure 5, comprises a thigh support 1, a calf support 2 and two intermediate connectors 3;

Two intermediate connectors 3 are arranged on both sides of the thigh support 1 and the calf support 2;

The intermediate connecting piece 3 includes an upper connecting part 31 , an intermediate connecting part 32 and a lower connecting part 33 which are connected in sequence. The upper connecting part 31 includes a fixing plate 311 , a sliding plate 312 and a fixing unit 313 , and the sliding plate 312 is slidably sleeved with the fixing plate 311 . The fixing unit 313 is used to fix the fixing plate 311 and the sliding plate 312 , the sliding plate 312 is connected with the thigh support 1 , the fixing plate 311 is connected with the middle connecting part 32 , and the lower connecting part 33 is connected with the calf support 2 .

The middle-upper connecting portion 31 of the knee orthopaedic brace includes a fixing plate 311, a sliding plate 312 and a fixing unit 313. The sliding plate 312 is slidably sleeved with the fixing plate 311, and the fixing unit 313 is used to fix the fixing plate 311 and the sliding plate 312. The way in which the sliding plate 312 is connected with the fixing plate 311 can make it easy for the patient to adjust the knee joint orthopaedic brace independently, reduce the adjustment time, increase the patient's compliance, and improve the treatment effect. By connecting the sliding plate 312 to the fixing plate 311, in the use of the knee joint orthopaedic brace, the length of the side (affected side) with greater force of the patient is lengthened by 1-2 cm to apply orthopedic force, reducing the affected side. Force. After knee osteoarthritis, knee varus and other diseases wear the knee orthopaedic brace, it can reduce the pressure of the knee joint compartment on the narrow side, delay the further development of the disease in the affected side compartment, and delay or avoid surgical treatment . After wearing the knee joint orthopaedic brace, the pain caused by the uneven distribution of pressure on the inside and outside of the knee joint is reduced, and the knee joint is relieved by the orthopedic brace and the alignment of the lower limb is corrected, thereby improving the quality of life of the patient.

In a preferred embodiment, as shown in FIG. 6 and FIG. 7 , the fixing plate 311 includes the first unit 3111 of the fixing plate, the connecting shaft 3112 and the second fixing plate which are connected in sequence from the distal end of the intermediate connecting portion to the end of the proximal intermediate connecting portion. Unit 3113; the sliding plate 312 includes the first sliding plate unit 3121 at the end of the intermediate connecting portion and the second sliding plate unit 3122 at the distal end of the intermediate connecting portion; The second unit 3122 is connected with the thigh support 1 . The fixing plate is divided into the first unit 3111 of the fixing plate and the second unit 3113 of the fixing plate, which are fixed by the connecting shaft 3112, which can satisfy a certain degree of deformation of the knee joint orthopedic brace in practical application. The angle between the first unit 3111 of the fixing plate and the second unit 3113 of the fixing plate will vary within a small range, and the angle may be controlled within a range of ±5°.

In a preferred embodiment, as shown in FIG. 6 and FIG. 7 , the first unit 3111 of the fixed plate is provided with a plurality of first through holes 31111 of the fixed plate, and the first unit 3121 of the sliding plate is provided with the first through holes of the fixed plate. 31111 is matched with the first through hole 31211 of the sliding plate, and the fixing unit 313 realizes the connection between the fixed plate 311 and the sliding plate 312 through the first through hole 31111 of the fixed plate and the first through hole 31211 of the sliding plate. The fixing unit 313 can be a magnetic plug that passes through the first through hole 31111 of the fixing plate and the first through hole 31211 of the sliding plate at the same time and is magnetically adsorbed, thereby fixing the fixing plate 311 and the sliding plate 312 as one and adjusting the appropriate length. .

In a preferred embodiment, as shown in FIG. 7 , FIG. 1 and FIG. 2 , the second sliding plate unit 3122 is provided with a plurality of sliding plate second through holes 31221 and a plurality of sliding plate fixing units 31222 . There is a thigh support through hole 11 matching the sliding plate second through hole 31221, and the sliding plate fixing unit 31222 realizes the sliding plate second unit 3122 and the thigh support through the sliding plate second through hole 31221 and the thigh support through hole 11. 1 connection.

In a preferred embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 3 , both the thigh support 1 and the calf support 2 have a U-shaped opening structure and the opening direction faces the front side of the leg.

In a preferred embodiment, the thigh support 1 is provided with a thigh support surface that fits with the outer surface of the patient's thigh; the calf support 2 is provided with a calf support surface that fits with the outer surface of the patient's calf.

The thigh support 1 and the calf support 2 can be modeled from the patient's femoral head to the ankle joint through CT and body surface scan data. After design, it is manufactured by 3D printing, and the straps passing through the support are fixed to the patient's thigh and calf. . The thigh support and calf support are used to realize personalized orthopedics for patients with knee osteoarthritis, knee varus, valgus deformity, etc., and the orthopedic support is personalized to fit the patient's lower limbs to increase the comfort and application of wear. Accuracy of orthopedic force. Both the thigh support 1 and the calf support 2 are U-shaped opening structures, and the opening direction faces the front side of the leg, which improves the comfort of the patient and reduces the frequency of slippage of the orthosis.

In a preferred embodiment, as shown in FIGS. 2 and 3 , the thigh support 1 is provided with a thigh support hollow 12 , and the calf support 2 is provided with a calf support hollow 21 . The hollow part 12 of the thigh support and the hollow part 21 of the calf support increase the air permeability when worn by the patient and improve the comfort.

In a preferred embodiment, as shown in FIG. 1 and FIG. 9 , the intermediate connecting portion 32 includes a biaxial chassis 321 , a first limiting buckle 322 for limiting the rotation range of the upper connecting portion 31 , and a The second limit buckle 323 for limiting the rotation range of the lower connecting part 33; 31 is rotatably connected through the first limit buckle 322 , and the biaxial chassis 321 and the lower connecting portion 33 are rotatably connected through the second limit buckle 323 . The dual-axis chassis 321 and the upper connecting portion 31 are rotatably connected through the first limit buckle 322 to adjust the rotation range of the upper connecting portion 31; The rotation range of the lower connecting portion 33 .

In a preferred embodiment, the dual-axis chassis 321 includes a first layer plate 3212, a second layer plate 3213 and a connecting wall 3214 for limiting, and the connecting wall 3214 is provided on the first layer plate 3212 and the second layer plate 3213. On the same side, the first layer board 3212 is connected to the second layer board 3213 via the connecting wall 3214 . In this design, the upper connecting part 31 and the lower connecting part 33 are limited to rotate within the accommodating cavity 3211 by the connecting wall 3214 for limiting.

In a preferred embodiment, the rotation range of the upper connecting portion 31 is 0°˜80°. Limit the hyperextension and flexion of the knee joint, reduce the risk of injury, and at the same time give the knee joint the maximum range of motion to meet the needs of basic and advanced sports, and can exercise while wearing orthoses. The rotation range is the angular range of the back flexion of the thigh. Several first limiting holes 3216 can be provided. As shown in FIG. 1 , four first limiting holes 3216 are provided. When the first limiting protrusion 3223 penetrates through the first first limiting hole 3216, the upper connecting portion The rotation range of the upper connecting portion 31 is 0°˜50°. When the first limiting protrusion 3223 penetrates the second first limiting hole 3216 , the rotation range of the upper connecting portion 31 is 0°˜60°, and so on.

In a preferred embodiment, the rotation range of the lower connecting portion 33 is 0°˜90°. Limit the hyperextension and flexion of the knee joint, reduce the risk of injury, and at the same time give the knee joint the maximum range of motion to meet the needs of basic and advanced sports, and can exercise while wearing orthoses. The rotation range is the angular range of the calf flexion. Several second limit holes 3218 can be provided. As shown in FIG. 1 , ten second limit holes 3218 are provided. When the second limit protrusions 3233 penetrate through the first second limit holes 3218, the lower connecting portion The rotation range of the lower connecting portion 33 is 0°˜0°. When the second limiting protrusion 3233 penetrates the second second limiting hole 3218 , the rotation range of the lower connecting portion 33 is 0°˜10°, and so on.

In a preferred embodiment, as shown in FIG. 10 , the first limit buckle 322 includes a first connecting stud 3221, a first limit connecting unit 3222 and a first limit protrusion 3223. The first limit connection One end of the unit 3222 is connected with the first connecting stud 3221, and the other end is connected with the first limiting protrusion 3223; The stud 3221 penetrates the first connecting through hole 3215 , the biaxial chassis 321 defines a plurality of first limiting holes 3216 around the first connecting through hole 3215 , and the first limiting protrusion 3223 penetrates the first limiting hole 3216 . The first limiting protrusion 3223 is detachably connected with the first limiting connecting unit 3222 , which is convenient for adjusting the rotation range of the upper connecting portion 31 .

In a preferred embodiment, the fixing plate 311 is provided with a second fixing plate through hole 3114 corresponding to the first connecting through hole 3215 , the first connecting stud 3221 penetrates through the second fixing plate through hole 3114 , and the fixing plate 311 is provided with The fixing plate notch 3115 for providing the first limiting protrusion 3223 movable space, and the fixing plate notch 3115 is provided with a fixing plate limiting stop wall 3116 for limiting the movable range of the first limiting protrusion 3223 .

In a preferred embodiment, the connection between the first connecting stud 3221 and the biaxial chassis 321 is movable riveting.

In a preferred embodiment, in the accommodating cavity 3211 , a plurality of first anti-wear gaskets 3224 are arranged on the first connecting stud 3221 near the biaxial chassis 321 .

In a preferred embodiment, as shown in FIG. 10 , the second limit buckle 323 includes a second connection stud 3231, a second limit connection unit 3232 and a second limit protrusion 3233. The second limit connection One end of the unit 3232 is connected with the second connecting stud 3231, and the other end is connected with the second limiting protrusion 3233; The stud 3231 penetrates the second connecting through hole 3217 , the biaxial chassis 321 defines a plurality of second limiting holes 3218 around the second connecting through hole 3217 , and the second limiting protrusion 3233 penetrates the second limiting hole 3218 . The second limiting protrusion 3233 is detachably connected with the second limiting connecting unit 3232 , which is convenient for adjusting the rotation range of the lower connecting portion 33 .

In a preferred embodiment, as shown in FIG. 8 , the lower connecting portion 33 is provided with a first connecting through hole 331 corresponding to the second connecting through hole 3217 , and the second connecting stud 3231 penetrates through the second connecting through hole 3217 . Hole 3217, the lower connecting portion 33 is provided with a lower connecting portion notch 332 for providing an activity space for the second limiting protrusion 3233, and the lower connecting portion notch 332 is provided with a lower connecting portion limit for limiting the movement range of the second limiting protrusion 3233 Blocking wall 333 .

In a preferred embodiment, the connection between the second connecting stud 3231 and the biaxial chassis 321 is movable riveting.

In a preferred embodiment, in the accommodating cavity 3211 , a plurality of second anti-wear washers 3234 are arranged on the second connecting studs 3231 near the biaxial chassis 321 .

In a preferred embodiment, the lower connecting part 33 is provided with a plurality of second connecting through holes 334 of the lower connecting part and the lower connecting part fixing unit 335, and the lower leg support 2 is provided with a second connecting through hole 334 of the lower connecting part to match The lower connection part fixing unit 335 realizes the connection between the lower connection part 33 and the lower leg support 2 through the second connection through hole 334 and the lower leg support through hole 22 .

The middle connector 3 in the knee orthopaedic brace is a unified part, which can be assembled in advance for backup. The thigh support 1 and the calf support 2 are assembled with the middle connector 3 after 3D printing.

The first unit 3111 of the fixing plate and the second unit 3113 of the fixing plate are assembled into the fixing plate 311 through the connecting shaft 3112. The fixing plate 311 and the lower connecting part 33 are respectively installed in the accommodating cavity 3211 of the dual-axis chassis 321. The first unit 3121 of the sliding plate and the first unit 3111 of the fixing plate are slidably sleeved, and the two are fixed by the fixing unit 313 such as a magnetic latch, and the intermediate connector 3 is assembled. After performing CT and optical scanning on the patient, take the mold, 3D print the thigh support 1 and the calf support 2, take two intermediate connecting parts 3, and fix the lower connecting parts 33 on both sides above the calf support 2 respectively, slide the plate The second unit 3122 is fixed on both sides below the thigh support 1, and the knee joint orthopaedic brace is assembled.

After the patient obtains the knee joint orthopaedic brace, first remove the fixing unit 313 such as a magnetic latch to adjust the two sides to the shortest, and then use the fixing unit 313 to fix it. The thigh support 1 and the calf support 2 are worn forward on the lower limb, and the knee joint orthopaedic brace is fixed to the lower limb with a strap when the biaxial chassis 321 is aligned with the knee joint. Remove the fixing unit 313 such as the magnetic latch on the affected side, pull the sliding plate 312 and the fixing plate 311 to form a relative displacement and keep it, and then insert the fixing unit 313 such as the magnetic bolt back into the sliding plate 312 and the fixing plate 311 for fixing, and then use the same method. Adjust the other side. All in all, the affected side, that is, the side with greater force, will be enlarged, and the side with narrow knee joint space will be enlarged to relieve pain.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims

A knee joint orthopaedic brace, characterized in that it comprises a thigh support (1), a calf support (2) and two intermediate connectors (3);

The two intermediate connectors (3) are arranged on both sides of the thigh support (1) and the calf support (2);

The intermediate connecting piece (3) comprises an upper connecting part (31), an intermediate connecting part (32) and a lower connecting part (33) which are connected in sequence, and the upper connecting part (31) comprises a fixing plate (311) and a sliding plate (312) and a fixing unit (313), the sliding plate (312) is slidably sleeved with the fixing plate (311), and the fixing unit (313) is used for fixing the fixing plate (311) and the sliding A plate (312), the sliding plate (312) is connected with the thigh support (1), the fixing plate (311) is connected with the middle connecting part (32), and the lower connecting part (33) is connected with The lower leg supports (2) are connected.
The knee joint orthopaedic brace according to claim 1, characterized in that, the fixing plate (311) comprises a first unit (3111) of the fixing plate, a connecting shaft connected in sequence from the end of the distal intermediate connecting portion to the end of the proximal intermediate connecting portion. (3112) and a second unit of the fixed plate (3113); the sliding plate (312) includes a first unit (3121) of the sliding plate near the end of the intermediate connecting part and a second unit (3122) of the sliding plate at the end of the distal intermediate connecting part; The sliding plate first unit (3121) is slidably sleeved with the fixing plate first unit (3111), and the sliding plate second unit (3122) is connected with the thigh support (1).
The knee joint orthopaedic brace according to claim 2, further comprising at least one of the following technical features:

1) The first unit (3111) of the fixing plate is provided with a plurality of first through holes (31111) of the fixing plate, and the first unit (3121) of the sliding plate is provided with the first through holes (31111) of the fixing plate The first through hole (31211) of the matching sliding plate, the fixing unit (313) realizes the fixing plate (311) through the first through hole (31111) of the fixing plate and the first through hole (31211) of the sliding plate ) and the connection of the sliding plate (312);

2) The sliding plate second unit (3122) is provided with a plurality of sliding plate second through holes (31221) and a plurality of sliding plate fixing units (31222), and the thigh support (1) is provided with the sliding plate The second through hole (31221) of the plate matches the through hole (11) of the thigh support, and the sliding plate fixing unit (31222) passes through the second through hole (31221) of the sliding plate and the through hole (11) of the thigh support ) to realize the connection between the sliding plate second unit (3122) and the thigh support (1).
The knee joint orthopaedic brace according to claim 1, further comprising at least one of the following technical features:

1) The thigh support (1) and the calf support (2) are both U-shaped opening structures and the opening direction faces the front side of the leg;

2) The thigh support member (1) is provided with a thigh support surface, and the thigh support surface is fitted with the outer surface of the patient's thigh; the calf support member (2) is provided with a calf support surface, and the calf support surface is fitted with the patient's thigh. Fitted on the outer surface of the calf.
The knee joint orthopaedic brace according to claim 4, wherein the thigh support (1) is provided with a thigh support hollow portion (12), and the calf support (2) is provided with a calf support The hollow part (21).
The knee joint orthopaedic brace according to any one of claims 1 to 5, wherein the intermediate connecting portion (32) comprises a biaxial chassis (321) for rotating the upper connecting portion (31). a first limit buckle (322) for limiting the range and a second limit buckle (323) for limiting the rotation range of the lower connecting part (33), the dual-axis chassis (321) There is a accommodating cavity (3211) for accommodating the rotation of the upper connecting part (31) and the lower connecting part (33). A limit buckle (322) is rotatably connected, and the biaxial chassis (321) and the lower connecting portion (33) are rotatably connected through the second limit buckle (323).
The knee joint orthopaedic brace according to claim 6, further comprising at least one of the following technical features:

1) The dual-axis chassis (321) includes a first layer plate (3212), a second layer plate (3213), and a connecting wall (3214) for position limiting, and the connecting wall (3214) is provided on the first layer (3214). On the same side of the first layer board (3212) and the second layer board (3213), the first layer board (3212) is connected to the second layer board (3213) through the connecting wall (3214);

2) The rotation range of the upper connecting part (31) is 0°～80°;

3) The rotation range of the lower connecting part (33) is 0°˜90°.
The knee joint orthopaedic brace according to claim 6, further comprising at least one of the following technical features:

1) The first limit buckle (322) includes a first connection stud (3221), a first limit connection unit (3222) and a first limit protrusion (3223). The first limit connection One end of the unit (3222) is connected with the first connecting stud (3221), and the other end is connected with the first limiting protrusion (3223); A first connecting through hole (3215) corresponding to a connecting stud (3221), the first connecting stud (3221) passing through the first connecting through hole (3215), and the biaxial chassis (321) surrounding the The first connecting through hole (3215) is provided with a plurality of first limiting holes (3216), and the first limiting protrusions (3223) penetrate through the first limiting holes (3216);

2) The second limit buckle (323) includes a second connection stud (3231), a second limit connection unit (3232) and a second limit protrusion (3233). The second limit connection One end of the unit (3232) is connected with the second connecting stud (3231), and the other end is connected with the second limiting protrusion (3233); A second connecting through hole (3217) corresponding to a connecting stud (3231), the second connecting stud (3231) passing through the second connecting through hole (3217), and the biaxial chassis (321) surrounding the The second connecting through hole (3217) is provided with a plurality of second limiting holes (3218), and the second limiting protrusions (3233) penetrate through the second limiting holes (3218).
The knee joint orthopaedic brace according to claim 8, further comprising at least one of the following technical features:

11) In feature 1), the fixing plate (311) is provided with a second through hole (3114) of the fixing plate corresponding to the first connecting through hole (3215), and the first connecting stud (3221) penetrates through The fixing plate has a second through hole (3114), and the fixing plate (311) is provided with a fixing plate notch (3115) that provides an active space for the first limiting protrusion (3223), and the fixing plate notch (3115) ) is provided with a fixed plate limit stop wall (3116) for limiting the movement range of the first limit protrusion (3223);

12) In feature 1), the connection between the first connecting stud (3221) and the biaxial chassis (321) is movable riveting;

13) In feature 1), in the accommodating cavity (3211), a plurality of first anti-wear gaskets (3224) are arranged on the first connecting stud (3221) near the biaxial chassis (321);

21) In feature 2), the lower connecting portion (33) is provided with a first connecting through hole (331) in the lower connecting portion corresponding to the second connecting through hole (3217), and the second connecting stud ( 3231) penetrates through the second connecting through hole (3217), the lower connecting portion (33) is provided with a lower connecting portion notch (332) that provides an active space for the second limiting protrusion (3233), the lower connecting portion (332) The connecting portion gap (332) is provided with a lower connecting portion limiting barrier wall (333) for limiting the movement range of the second limiting protrusion (3233);

22) In feature 2), the connection between the second connecting stud (3231) and the biaxial chassis (321) is movable riveting;

23) In feature 2), in the accommodating cavity (3211), a plurality of second anti-wear gaskets (3234) are arranged on the second connecting stud (3231) near the biaxial chassis (321).
The knee joint orthopaedic brace according to claim 1, characterized in that, the lower connecting part (33) is provided with a plurality of second connecting through holes (334) of the lower connecting part and a fixing unit (335) of the lower connecting part, so The lower leg support member (2) is provided with a lower leg support member through hole (22) that matches the second connection through hole (334) of the lower connection portion, and the lower connection portion fixing unit (335) passes through the second connection through hole (334). The connection through hole (334) and the lower leg support through hole (22) realize the connection between the lower connection part (33) and the lower leg support (2).