An orthopedic device for reduction of a bone

Abstract

The application relates to the technical field of orthopedic rehabilitation, and discloses an orthopedic device for reduction, which comprises a protector, a supporting shoe arranged at the bottom of the protector, a mounting groove arranged in the supporting shoe, a supporting plate arranged in the mounting groove, a fixing rod arranged at the bottom of the front end of the supporting plate, the fixing rod being fixedly connected in the mounting groove, a rectangular groove arranged at the bottom of the rear end of the supporting plate, and a height adjusting component arranged at the bottom of the supporting plate. The height of the rear part of the supporting plate is steplessly adjusted through the continuous transition of the lifting part, the parallel part and the lowering part of the screw-shaped adjusting block, the height of the heel of different patients can be accurately matched, the difference in the skeletal morphology can be matched, the problem of traditional standardized devices compressing blood vessels can be solved, the device does not need to be frequently replaced, the height can be flexibly adjusted according to different rehabilitation stages, the whole rehabilitation period can be covered, and the medical cost and the risk of reduction interference in the replacement process are reduced.

Description

Technical Field

[0001] This invention relates to the field of orthopedic rehabilitation technology, and in particular to an orthopedic device for orthopedic repositioning. Background Technology

[0002] In orthopedic clinical treatment, orthotic devices are core auxiliary equipment for the reduction and correction of fractures, dislocations, and flat feet, as well as for postoperative rehabilitation. They need to provide stable support for bone healing and be adapted to the individual needs of patients. Currently, commonly used traditional orthotic devices are mostly plaster casts, splints, and non-adjustable braces. These devices use standardized size designs and have significant fitting defects. They cannot be adjusted according to the individual bone morphology and heel height differences of patients. This can easily lead to problems such as excessive support compressing blood vessels and causing poor blood circulation, or insufficient support causing loosening of the reduction site and bone displacement. This fitting problem is particularly prominent for patients with special foot morphology, such as those with flat feet.

[0003] Meanwhile, orthopedic reduction and healing exhibit a progressive nature, with varying requirements for support height and angle at different rehabilitation stages: in the early stages of fracture healing, strict height fixation is necessary to ensure reduction accuracy; in the middle stages, slight adjustments to the support position are needed to promote local blood circulation; and in the later stages, the support intensity needs to be gradually reduced to accommodate weight-bearing training. However, traditional non-adjustable devices cannot meet the needs of dynamic adjustment, requiring frequent replacements of different sizes. This not only increases medical costs but also easily disturbs the healing bone during replacement, increasing the risk of secondary injury. Furthermore, traditional devices lack elastic cushioning structures, and long-term wear can easily lead to pressure sores due to concentrated local force. The stability of the support also relies on manual fixation, making it susceptible to skeletal misalignment due to external forces or wearing errors, affecting healing outcomes. Overall, it is difficult to balance fit, safety, and the needs of different rehabilitation stages, necessitating optimization and improvement. Summary of the Invention

[0004] Given the problems of existing orthopedic devices, such as poor standardized design and adaptability, difficulty in dynamic adjustment requiring frequent replacement, lack of buffering and unstable support, a new orthopedic device for orthopedic reduction is proposed.

[0005] Its purpose is to provide support that is precisely adapted to individual bone structure and heel height differences, to achieve dynamic height adjustment throughout the rehabilitation cycle to avoid frequent changes, to reduce pressure sores and secondary injuries through a cushioning structure, to enhance support stability, to take into account ease of operation, and to improve the orthopedic reduction, correction and rehabilitation effects.

[0006] The technical solution of the present invention is an orthopedic device for orthopedic reduction, including a brace, a support shoe disposed at the bottom of the brace, an installation groove opened inside the support shoe, a support plate disposed in the installation groove, a fixing rod disposed at the bottom front end of the support plate, the fixing rod being fixedly connected in the installation groove, a rectangular groove opened at the bottom rear end of the support plate, and a height adjustment component disposed at the bottom of the support plate.

[0007] The height adjustment component includes a drive assembly disposed on one side of the protective gear and an adjustment assembly disposed on one side of the drive assembly. The drive assembly and the adjustment assembly are connected by a transmission. The drive assembly is used to drive the adjustment assembly to adjust the height of the support plate, and the adjustment assembly is used to adjust the height of one side of the support plate.

[0008] The adjustment assembly includes two support blocks disposed in the mounting groove, a rotating rod disposed on the top of the support blocks, a driven wheel disposed in the middle of the rotating rod, adjustment blocks disposed on both sides of the rotating rod, a limiting groove opened on one side of the adjustment block, a limiting rod disposed in the limiting groove, and the limiting rod being fixedly connected to the side wall of the rectangular groove.

[0009] The adjusting block is spiral in shape and consists of a rising part, a parallel part and a lowering part. The distance between the outer edge of the rising part and the center point of rotation of the adjusting block increases continuously along its bias side. The distance between the outer edge of the parallel part and its center point is the same. The distance between the outer edge of the lowering part and the center point of rotation of the adjusting block decreases continuously along its bias side.

[0010] Furthermore, the drive assembly includes a transmission group disposed on one side of the bevel gear. The transmission group is composed of two bevel gears and a connecting rod. One bevel gear meshes with the driven gear. One end of the connecting rod is limited to rotate on one side of the support shoe. A drive wheel is disposed on the top of the other bevel gear. A drive rod is disposed on the top of the drive wheel. A worm gear is disposed on the top of the drive rod. A worm is disposed on one side of the worm gear. A knob is disposed on one side of the worm. The worm gear and worm are embedded in the protective shell. The protective shell is fixed on a bracket on one side of the protective gear. The drive rod is limited to rotate on several brackets on one side of the protective gear.

[0011] Furthermore, a support shell is fixedly connected to one side of the support shoe, and one end of the transmission assembly and the drive wheel are embedded in the support shell.

[0012] Furthermore, two sets of buffer components are symmetrically arranged in the rectangular groove. The buffer components include a rotating roller, a buffer rod in the middle of the rotating roller, buffer columns on the top of both sides of the rotating rod, a buffer spring on the top of the buffer column, a buffer groove opened in the rectangular groove, a buffer spring fixedly connected in the buffer groove, a limiting block respectively set in the rectangular groove and located on one side of the buffer column, and an abutment groove at the bottom of the limiting block that matches the rotating rod.

[0013] Furthermore, the limiting groove is also spiral-shaped as a whole, and the diameter of the limiting rod is smaller than the width of the limiting groove.

[0014] Furthermore, in its original length state, the rotating roller and the parallel part abut against each other, and the rear end of the support plate is in a raised state.

[0015] Furthermore, the distance between the bottom of the support plate and the transmission assembly is 2-3 cm.

[0016] Furthermore, the length of the outer edge of the lowering portion is less than the length of the outer edge of the raising portion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the continuous transition of the rising, parallel and lowering parts of the spiral-shaped adjustment block, the height of the rear part of the support plate can be infinitely adjusted, which can accurately match the differences in heel height and bone shape of different patients, and solve the problem of blood vessel compression by traditional standardized devices; at the same time, there is no need to frequently replace the device, and the height can be flexibly adjusted according to different stages of rehabilitation, covering the entire rehabilitation cycle, reducing medical costs and the risk of repositioning interference during replacement.

[0019] 2. The worm gear structure of the drive component has a self-locking effect, which can lock the adjusting block, driven wheel and other components after adjustment to prevent the support from loosening and causing the skeletal force line to shift; the cushioning component absorbs foot pressure through the cushioning spring and disperses the force through the rotating roller, reducing pressure sores and poor blood circulation caused by long-term wear, and automatically switches to rigid support when the rotating rod is pressed against the limit block, taking into account both cushioning protection and reset stability; the limit rod cooperates with the helical limit groove to prevent the support plate from tilting up and the adjusting block from rotating excessively, and the elastic structure can also weaken the impact when sudden force is applied, reducing the risk of secondary injury. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention after removing the protective gear and support shoes;

[0022] Figure 3 This is a bottom view of the bottom structure of the support plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the adjustment component and the buffer component of the present invention;

[0024] Figure 5 This is a front view of the adjustment block and a schematic diagram of the distance change structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the separate structure of the buffer assembly and the adjustment block of the present invention;

[0026] Figure 7 This is an exploded structural diagram of the buffer component of the present invention;

[0027] Figure 8 This is a schematic diagram of the overall structure of the rectangular groove and buffer groove of the present invention.

[0028] In the picture:

[0029] 1. Protective gear; 11. Support shoe; 12. Mounting slot; 13. Rectangular slot; 2. Adjustment assembly; 21. Support block; 22. Rotating rod; 23. Driven wheel; 24. Adjustment block; 241. Raising part; 242. Parallel part; 243. Lowering part; 25. Limiting slot; 26. Limiting rod; 3. Drive assembly; 31. Transmission group; 32. Drive wheel; 33. Drive rod; 34. Knob; 4. Buffer assembly; 41. Rotating roller; 42. Buffer rod; 43. Buffer column; 44. Buffer spring; 45. Buffer groove; 46. Limiting block; 47. Abutment groove. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1, referring to Figures 1-8 This invention provides a first embodiment of an orthopedic reduction device, comprising a brace 1, a support shoe 11 mounted on the bottom of the brace 1, a mounting groove 12 formed inside the support shoe 11, a support plate mounted in the mounting groove 12, a fixing rod rotatably connected to the bottom front end of the support plate and fixedly connected to the mounting groove 12, a rectangular groove 13 formed at the bottom rear end of the support plate, and a height adjustment component disposed at the bottom of the support plate. The height adjustment component includes a drive assembly 3 disposed on one side of the brace 1 and an adjustment assembly 2 disposed on one side of the drive assembly 3. The drive assembly 3 and the adjustment assembly 2 are connected by a transmission connection. The drive assembly 3 drives the adjustment assembly 2 to adjust the height of the support plate, and the adjustment assembly 2 adjusts the height of one side of the support plate. The adjustment assembly 2 includes a fixed connection. Two support blocks 21 are installed in the mounting groove 12. A rotating rod 22 is rotatably connected to the top of the support block 21. A driven wheel 23 is fixedly connected to the middle of the rotating rod 22. Adjusting blocks 24 are fixedly connected to both sides of the rotating rod 22. A limiting groove 25 is opened on one side of the adjusting block 24. A limiting rod 26 is movably connected in the limiting groove 25. The limiting rod 26 is fixedly connected to the side wall of the rectangular groove 13. The adjusting block 24 is spiral in shape and consists of a rising part 241, a parallel part 242 and a lowering part 243. The distance between the outer edge of the rising part 241 and the rotation center point of the adjusting block 24 continuously increases along its bias side. The distance between the outer edge of the parallel part 242 and its center point is the same. The distance between the outer edge of the lowering part 243 and the rotation center point of the adjusting block 24 continuously decreases along its bias side.

[0032] Specifically, when wearing the orthotic device, the foot is inserted into the protective gear 1 and the support shoe 11, and then the elastic band is tightened. When the heel presses against the support plate, the rear of the support plate is pressed down, compressing the cushioning component 4. The top of the cushioning component 4 and the adjusting block 24 abut against each other, and the support plate is in a horizontal state. When it is necessary to adjust the height of the patient's heel, the driven wheel 23 in the adjusting component 2 is rotated by adjusting the drive component 3. The driven wheel 23 drives the rotating rod 22 and the adjusting blocks 24 on both sides to rotate synchronously. Since the adjusting block 24 is spiral in shape, when the drive component 3 drives the driven wheel 23 and the rotating rod 22 to rotate clockwise, the clockwise rotation of the adjusting block 24 causes the raising part 241 to gradually rotate and abut against the bottom of the cushioning component 4, raising the rear of the support plate. Conversely, when the driven wheel 23 rotates counterclockwise, the lowering part 243 rotates towards the bottom of the cushioning component 4, so that the support plate can be lowered slightly, realizing the need to adjust the height of the heel of different patients.

[0033] Traditional orthopedic devices (such as plaster casts, splints, and non-adjustable braces) are mostly standardized in size, making it impossible to adapt to individual patient bone morphology and differences in heel height, such as flat feet. This often leads to problems like excessive support causing blood vessel compression or insufficient support causing loosening of the reduction. Adjustable designs solve these adaptation contradictions. They meet the dynamic adjustment needs of the rehabilitation process. Orthopedic reduction and healing is a gradual process, with different stages requiring different support height and angles (e.g., strict height fixation is needed in the early stages of fracture healing, slight adjustments are needed in the middle stages to promote blood circulation, and support needs to be gradually reduced in the later stages to accommodate weight-bearing). Traditional devices are non-adjustable and require frequent replacements, increasing medical costs and potentially affecting the reduction effect during replacement. Adjustable designs allow a single device to cover the entire rehabilitation cycle. Furthermore, they reduce the "secondary injury risk" of traditional techniques. If the height of a traditional device is not properly matched, it may cause local compression, poor blood circulation, or bone displacement due to unstable support. Adjustments require disassembly and reassembly, which is cumbersome and can easily disturb the healing bone. Adjustable designs significantly reduce these secondary injury risks through precise micro-adjustments and no disassembly required.

[0034] The adjusting block 24 adopts a spiral design, and through the continuous transition of the raising part 241, the parallel part 242, and the lowering part 243, it can achieve stepless adjustment of the height of the rear of the support plate. It can precisely match the height differences of different patients' heels and adapt to the height requirements at different stages of the reduction and correction process, avoiding the problem of the single height adaptation of traditional fixed orthotic devices. Through the transmission cooperation between the drive component 3 and the adjusting component 2, only the drive component 3 needs to be operated to drive the adjusting block 24 to achieve height adjustment. There is no need for complicated manual disassembly or assembly. Medical staff can quickly complete the adaptation, and patients can also make fine adjustments themselves under guidance, improving the convenience of use. It is suitable for precise height adaptation in the early stage of orthopedic reduction, and can also adjust the support height according to the healing progress during the rehabilitation process to help patients gradually restore limb function. It is suitable for the entire process of reduction and correction and postoperative rehabilitation of orthopedic conditions such as fractures and dislocations, with wide applicability and taking into account both reduction and rehabilitation. The limiting rod 26 plays a limiting role within the limiting groove 25, preventing the support plate from tilting up when the patient squeezes it, and preventing the adjusting block 24 from rotating excessively.

[0035] Example 2, refer to Figures 1-2 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: the drive assembly 3 includes a transmission group 31 meshing with one side of the bevel gear. The transmission group 31 is composed of two bevel gears and a connecting rod. One bevel gear meshes with the driven wheel 23. One end of the connecting rod is limited to rotate on one side of the support shoe 11. A drive wheel 32 meshes with the top of the other bevel gear. A drive rod 33 is fixedly connected to the top of the drive wheel 32. A worm gear is fixedly connected to the top of the drive rod 33. A worm is meshed with one side of the worm gear. A knob 34 is fixedly connected to one side of the worm. The worm is embedded in the protective shell. The protective shell is fixed on a bracket on one side of the protective gear 1. The drive rod 33 is limited to rotate on several brackets on one side of the protective gear 1.

[0036] Specifically, during adjustment, rotating knob 34 causes the worm gear to rotate, which in turn drives the worm wheel, drive rod 33, and drive wheel 32 to rotate. Drive wheel 32 drives transmission assembly 31 to rotate, which in turn drives driven wheel 23 to rotate, thereby causing adjustment block 24 to rotate. Due to the self-locking effect of the worm gear, when the worm gear stops adjusting, the worm wheel, drive wheel 32, transmission assembly 31, driven wheel 23, and adjustment block 24 are all locked, improving the stability of the support for the patient's foot. The adjustment operation is simple and convenient. The drive assembly 3 is located at the rear of the orthotic device, which does not affect the patient's walking and allows the patient to adjust it themselves.

[0037] Reference Figures 1-2 A support shell is fixedly connected to one side of the support shoe 11, and one end of the transmission assembly 31 and the drive wheel 32 are embedded in the support shell.

[0038] Specifically, the support shell provides support and protection for the drive wheel 32 and the transmission assembly 31, improving transmission stability. The remaining structure is the same as that in Embodiment 1.

[0039] Example 3, referring to Figures 4-7 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that two sets of buffer components 4 are symmetrically arranged in the rectangular groove 13. The buffer component 4 includes a rotating roller 41, a buffer rod 42 rotatably connected to the middle of the rotating roller 41, a buffer column 43 fixedly connected to the top of both sides of the rotating rod 22, a buffer spring 44 fixedly connected to the top of the buffer column 43, a buffer groove 45 opened in the rectangular groove 13, a buffer spring 44 fixedly connected in the buffer groove 45, a limiting block 46 fixedly connected in the rectangular groove 13 and located on one side of the buffer column 43, and an abutment groove 47 opened at the bottom of the limiting block 46 and matching the rotating rod 22.

[0040] Specifically, when the patient presses down on the support plate, the support plate compresses the buffer spring 44, causing the top of the adjusting block 24 to abut against the rotating roller 41. The rotating roller 41 drives the buffer rod 42 and the buffer posts 43 on both sides to move upward, causing the buffer spring 44 to be compressed in the buffer groove 45 of the buffer post 43, thus cushioning the foot. When the buffer rod 42 moves to abut against the abutment groove 47, the adjusting block 24 and the rotating roller 41 provide rigid support for the support plate. The rotating roller 41 reduces the resistance when the adjusting block 24 rotates, improving the smoothness of height adjustment. When the foot presses down, the buffer spring 44 absorbs the impact force through compression, and the rotating roller 41 rolls and adapts to the force applied to the foot, dispersing the local pressure on the heel and avoiding direct pressure on the skin and blood vessels like traditional rigid supports. This is especially suitable for long-term wear, reducing complications such as pressure sores and poor blood circulation. When the buffer assembly 4 is compressed until the buffer rod 42 abuts against the abutment groove 47, it automatically switches to a rigid support state. This prevents the support plate from sinking excessively, which could cause bone misalignment, while maintaining the precise height after adjustment. This provides a stable support environment for repositioning and healing, balancing buffering protection and repositioning effect. The elastic buffer weakens the impact of sudden forces (such as accidental stepping) on ​​the healing bones, while the rigid limit prevents support failure caused by excessive compression. The dual structure reduces the risk of secondary injury caused by external forces or improper force, improving the safety of the rehabilitation process. In addition, when the patient wears the orthotic device and walks with their feet raised, if the feet are not tightly bound, the heel will naturally lift away from the support plate because the front part of the foot is limited. At this time, the buffer spring 44 will automatically return to its original position, allowing the support plate to conform to the patient's heel, reducing the force on the legs and feet when the patient presses down, and preventing excessive force on the feet or legs from directly pressing down on the support plate, which could affect the rehabilitation effect.

[0041] Reference Figures 5-6 The limiting groove 25 is also spiral-shaped, and the diameter of the limiting rod 26 is smaller than the width of the limiting groove 25.

[0042] Specifically, the limiting groove 25 and the limiting rod 26 are used to limit the support plate. The diameter of the limiting rod 26 is smaller than the width of the limiting groove 25 to provide a buffer distance and avoid interference.

[0043] Reference Figures 1-3 When the buffer spring 44 is in its original length state, the rotating roller 41 and the parallel part 242 abut against each other, and the rear end of the support plate is in a raised state.

[0044] Specifically, in the initial state, the support plate is tilted up on the side near the heel under the action of the buffer spring 44, so as to cushion the patient's foot when wearing it.

[0045] Reference Figures 2-3 The distance between the bottom of the support plate and the transmission assembly 31 is 2-3 cm.

[0046] Specifically, this design allows the support plate to rotate downwards and lower itself when the lowering section 243 rotates, thus providing it with room to rotate.

[0047] Reference Figure 5 The length of the outer edge of the lowering part 243 is less than the length of the outer edge of the raising part 241.

[0048] Specifically, the lowering section 243, relative to the raising section 241, has a greater elevation height than its lowering height, and its descent height is limited. This retains the functional requirement for the support plate to be lowered. The lowering section 243 is designed for treatment and rehabilitation in some special scenarios and with specific needs. Under normal circumstances, raising the rear part of the support plate can conform to the foot structure of most patients, thereby improving its functional applicability. The remaining structure is the same as that in Embodiment 2.

[0049] Based on embodiments 1-3, the working principle of this invention is as follows: The patient puts their foot into the protective gear 1 and support shoe 11 and tightens the elastic band. In the initial state, the rear end of the support plate is tilted up due to the action of the buffer spring 44. After the foot presses down, the rotating roller 41 of the buffer assembly 4 abuts against the parallel part 242 of the adjusting block 24. The buffer column 43 compresses the buffer spring 44 to achieve pressure buffering. At the same time, the buffer rod 42 abuts against the abutment groove 47 in the limiting block 46 to switch to rigid support, keeping the support plate horizontal. When the heel height needs to be adjusted, the knob 34 on one side of the protective gear 1 is turned to drive the worm gear to rotate. Through the worm wheel, drive rod 33, drive wheel 32 and transmission group 31, the driven wheel 23 and the rotating rod 22 are driven to rotate. The spiral adjusting blocks 24 on both sides rotate synchronously. When rotated clockwise, the raising part 241 raises the rear of the support plate. When rotated counterclockwise, the lowering part 243 lowers it slightly, realizing stepless height adjustment. The self-locking effect of the worm wheel and worm gear ensures the stability of the support after adjustment. The limiting rod 26 and the spiral limiting groove 25 work together to prevent the support plate from tilting up and the adjusting block 24 from rotating excessively. When the foot is lifted, the buffer spring 44 automatically resets to make the support plate fit the heel. The whole system achieves individualized adaptation and dynamic support throughout the rehabilitation cycle through the precise height control of the adjusting component 2, the elastic protection of the buffer component 4, and the stable support of the self-locking structure.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An orthopedic device for orthopedic reduction, comprising a brace (1), a support shoe (11) disposed at the bottom of the brace (1), an installation groove (12) opened inside the support shoe (11), a support plate disposed in the installation groove (12), a fixing rod disposed at the bottom front end of the support plate, the fixing rod being fixedly connected in the installation groove (12), and a rectangular groove (13) opened at the bottom rear end of the support plate, characterized in that: It also includes a height adjustment component located at the bottom of the support plate; The height adjustment component includes a drive assembly (3) disposed on one side of the protective gear (1) and an adjustment assembly (2) disposed on one side of the drive assembly (3). The drive assembly (3) and the adjustment assembly (2) are connected in a transmission manner. The drive assembly (3) is used to drive the adjustment assembly (2) to adjust the height of the support plate. The adjustment assembly (2) is used to adjust the height of one side of the support plate. The adjustment assembly (2) includes two support blocks (21) disposed in the mounting groove (12), a rotating rod (22) disposed on the top of the support block (21), a driven wheel (23) disposed in the middle of the rotating rod (22), adjustment blocks (24) disposed on both sides of the rotating rod (22), a limiting groove (25) opened on one side of the adjustment block (24), a limiting rod (26) disposed in the limiting groove (25), and the limiting rod (26) is fixedly connected to the side wall of the rectangular groove (13); The adjusting block (24) is spiral in shape and consists of a rising part (241), a parallel part (242) and a lowering part (243). The distance between the outer edge of the rising part (241) and the center point of rotation of the adjusting block (24) increases continuously along its bias side. The distance between the outer edge of the parallel part (242) and the center point of rotation of the adjusting block (24) is the same. The distance between the outer edge of the lowering part (243) and the center point of rotation of the adjusting block (24) decreases continuously along its bias side. Two sets of buffer components (4) are symmetrically arranged in the rectangular groove (13). The buffer components (4) include a rotating roller (41), a buffer rod (42) in the middle of the rotating roller (41), a buffer column (43) on the top of both sides of the buffer rod (42), a buffer spring (44) on the top of the buffer column (43), a buffer groove (45) opened in the rectangular groove (13), the buffer spring (44) is fixedly connected in the buffer groove (45), a limiting block (46) respectively set in the rectangular groove (13) and located on one side of the buffer column (43), and an abutment groove (47) opened at the bottom of the limiting block (46) matching the buffer rod (42).

2. The orthopedic device for orthopedic reduction according to claim 1, characterized in that: The drive assembly (3) includes a transmission group (31) located on one side of the driven wheel (23). The transmission group (31) is composed of two bevel gears and a connecting rod. One bevel gear meshes with the driven wheel (23). One end of the connecting rod is limited to rotate on one side of the support shoe (11). A drive wheel (32) is located on the top of the other bevel gear. A drive rod (33) is located on the top of the drive wheel (32). A worm gear is located on the top of the drive rod (33). A worm is located on one side of the worm gear. A knob (34) is located on one side of the worm. The worm gear and worm are embedded in the protective shell. The protective shell is fixed on a bracket on one side of the protective gear (1). The drive rod (33) is limited to rotate on several brackets on one side of the protective gear (1).

3. The orthopedic device for orthopedic reduction according to claim 2, characterized in that: A support shell is fixedly connected to one side of the support shoe (11), and one end of the transmission assembly (31) and the drive wheel (32) are embedded in the support shell.

4. The orthopedic device for orthopedic reduction according to claim 1, characterized in that: The limiting groove (25) is also spiral in shape, and the diameter of the limiting rod (26) is smaller than the width of the limiting groove (25).

5. The orthopedic device for orthopedic reduction according to claim 4, characterized in that: When the buffer spring (44) is in its original length state, the rotating roller (41) and the parallel part (242) abut against each other, and the rear end of the support plate is in a raised state.

6. The orthopedic device for orthopedic reduction according to claim 2, characterized in that: The distance between the bottom of the support plate and the transmission assembly (31) is 2-3 cm.

7. The orthopedic device for orthopedic reduction according to claim 1, characterized in that: The length of the outer edge of the lowering part (243) is less than the length of the outer edge of the raising part (241).

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