Adjustable elastic fixing support for supracondylar fracture of humerus of child

The customizable elastic fixation brace addresses the challenge of maintaining appropriate angle adjustment during humeral condyle fracture recovery by enabling controlled arm movement, enhancing recovery efficacy and comfort.

CN120305019APending Publication Date: 2025-07-15NINGBO SIXTH HOSPITAL +1
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Patent Information

Application Number
CN202510586319.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2025-07-15

AI Technical Summary

Technical Problem

During the recovery of supracondylar fractures in children, it is difficult to stretch the humeral condyle at an appropriate angle while ensuring fixation, which can easily lead to poor recovery or secondary damage.

Method used

An adjustable elastic fixing bracket including a big arm wrap structure, a forearm wrap structure and a curved strap is designed. Through a combination of sliding groove frame, sliding seat and sliding block, children can extend slightly within the restricted range of humeral condyles and achieve moderate movement of the big arm and forearm by adjusting the position of the fastening rope.

Benefits of technology

It improves the comfort and safety of the recovery process of supracondylar fracture in children, ensures normal extension at the humeral condyle, and reduces the risk of poor recovery and secondary injury.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of fixing supports, and provides an adjustable elastic fixing support for supracondylar fracture of humerus of children, which comprises an upper arm wrapping structure, a forearm wrapping structure, two arc-shaped straps and hard clamping seats, a belt buckle structure is arranged between the arc-shaped straps, the hard clamping seats are arranged in the middles of the two arc-shaped straps, and the belt buckle structure is arranged between the two arc-shaped straps. A belt buckle structure is also arranged between the two hard clamping seats, a sliding groove frame is fixedly connected to the hard clamping seats, a sliding seat capable of adjusting the fixing position is arranged in the sliding groove frame in a sliding mode and adapts to the fixing angle of the forearm of the patient, a sliding groove body is formed in the forearm wrapping structure, and a sliding block capable of adjusting the fixing position is arranged in the sliding groove body in a sliding mode; by means of the technical scheme, the problem that in the prior art, in the recovery process of supracondylar fracture of humerus of a child, it is difficult to stretch the condylar of the humerus at a proper angle under the condition that fixation is guaranteed is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of fixing brackets, and specifically, to an adjustable elastic fixing bracket for supracondylar fractures of the humerus in children. Background Art

[0002] Fractures above the medial and lateral epicondyles of the distal humerus, among which the extension type accounts for about 90%, are most common in children, and the peak incidence age is 5 to 12 years old. Because children's bones are relatively fragile, when children have accidents such as falls and collisions, supracondylar fractures of the humerus in children are very likely to occur. When treating supracondylar fractures of the humerus in children, since the children's bones will still develop normally in the future, in order to ensure that the humeral condyles of children remain normal after the supracondylar fractures of the humerus in children are restored, and to prevent obvious restoration problems such as cubitus varus from occurring after the humeral condyles of children are restored.

[0003] Therefore, after treating supracondylar fractures of the humerus in children, after ensuring the restoration of the bone position of the children, an elastic fixing bracket is usually used to fix the humeral condyles and the shoulders, so as to keep the children fixed and prevent the problem of poor restoration of the humeral condyles caused by the children's random movement during the restoration process.

[0004] During the recovery process of children, when it is determined that the children have basically no major injuries, in order to ensure that the humeral condyles of the children can still be normally extended, the children need to perform appropriate-angle extension of the humeral condyles, so that the children enter the stage of injury rehabilitation. However, because the children's self-control ability is poor, it is difficult to ensure the extension angle of the humeral condyles, and it is easy to cause secondary injury problems during the recovery process of the children. Summary of the Invention

[0005] The present invention provides an adjustable elastic fixing bracket for supracondylar fractures of the humerus in children, which solves the problem in the prior art that it is difficult to perform appropriate-angle extension of the humeral condyles while ensuring fixation during the recovery process of supracondylar fractures of the humerus in children.

[0006] The technical solution of the present invention is as follows: An adjustable elastic fixing bracket for supracondylar fractures of the humerus in children, including a large arm wrapping structure, a small arm wrapping structure and two arc-shaped straps, a belt buckle structure is arranged between the arc-shaped straps, and further includes:

[0007] Rigid card holder, the rigid card holders are arranged on the middle parts of the two arc-shaped straps, and the belt buckle structure is also arranged between the two rigid card holders. A sliding groove frame is fixedly connected to the rigid card holder, and a sliding seat with an adjustable fixed position is slidably arranged in the sliding groove frame to adapt to the fixed angle of the patient's forearm. A sliding groove body is arranged on the forearm wrapping structure, and a sliding block with an adjustable fixed position is slidably arranged in the sliding groove body. A connecting rope is arranged between the sliding seat and the sliding block to limit the swinging arc of the patient's forearm;

[0008] Tightening rope, rope connection structures connected to the tightening rope at multiple positions are arranged on both the upper and lower sides of the upper arm wrapping structure, and the other end of the tightening rope is rotatably connected to the top of the sliding groove frame.

[0009] In order to fix the upper arm area of the patient, further, the upper arm wrapping structure includes a semi-circular tightening protective layer one and a rigid arc-shaped strip one, and the number is set to two. A plurality of elastic bands are arranged between the semi-circular tightening protective layer one, and the rigid arc-shaped strip one is fixedly connected to both sides of the semi-circular tightening protective layer one.

[0010] In order to tighten the patient's forearm, further, the forearm wrapping structure includes a semi-circular tightening protective layer two and a rigid arc-shaped strip two, and the number is set to two. A plurality of elastic bands are arranged between the semi-circular tightening protective layer two, and the rigid arc-shaped strip two is fixedly connected to both sides of the semi-circular tightening protective layer two.

[0011] In order to keep the connection between the two semi-circular tightening protective layer one or the two semi-circular tightening protective layer two, further, a magic tape structure is arranged between the two semi-circular tightening protective layer one, and the magic tape structure is also arranged between the two semi-circular tightening protective layer two.

[0012] In order to make the sliding seat engage with the corresponding position in the sliding groove frame, further, a plurality of engaging slots are opened on both sides of the sliding groove frame, and the plurality of engaging slots are longitudinally arranged on the inner side wall of the sliding groove frame. Insertion rods penetrate through both sides of the sliding seat and extend into the corresponding engaging slots.

[0013] In order to keep the insertion rod fixed after the insertion rod moves, further, internal tooth grooves are arranged on the adjacent ends of the two insertion rods, a transmission gear is meshed between the two internal tooth grooves, an engaging sliding groove is opened on the transmission gear, an engaging sliding seat is longitudinally slidably connected in the engaging sliding groove, and an adjusting distance screw is fixedly connected to the engaging sliding seat. The adjusting distance screw is threadedly connected to the top of the sliding seat.

[0014] In order to fix the corresponding positions between the sliding block and the sliding groove body, further, a plurality of through grooves are longitudinally formed on both sides of the sliding groove body, a meshing groove is formed on the sliding block, and a connecting rod is inserted between the corresponding through groove and the meshing groove.

[0015] In order to keep the connecting rod fixed between the sliding groove body and the sliding block, further, a damping groove is communicated with the through groove, the connecting rod is attached to the inner wall of the damping groove, and flat pulling pieces are provided at both ends of the connecting rod, and the flat pulling pieces are located in the damping groove.

[0016] In order to adjust the distance between the large arm wrapping structure and the sliding groove frame, further, the rope connection structure includes a meshing cylinder seat, an elastic rope is arranged between the two hard arc-shaped strips one, the meshing cylinder seat is arranged in the middle of the elastic rope, one side of the fastening rope is set as a connecting section, the connecting section is inserted through and slidably arranged in the meshing cylinder seat, a plurality of meshing holes are formed on both the connecting section and the meshing cylinder seat, and a fastening rod is arranged between the corresponding two meshing holes.

[0017] In order to enable the fastening rope to move along with the large arm wrapping structure, further, a rotating shaft seat is fixedly connected to the top of the sliding groove frame, two rotating rings are rotatably connected to the rotating shaft seat, and the fastening rope is fixedly connected to the rotating ring.

[0018] The working principle and beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, when fixing the supracondylar fracture of the humerus in a child patient, first, two arc-shaped straps are arranged on the front chest and back of the child, and then when using the large arm wrapping structure and the small arm wrapping structure subsequently, the large arm wrapping structure and the small arm wrapping structure are respectively connected to the two arc-shaped straps. Compared with the prior art in which a suspension strap is hung on the shoulder and neck for support, the present invention uses two arc-shaped straps to change the force application points of the large arm wrapping structure and the small arm wrapping structure to the shoulders, which can effectively improve the comfort of the child patient during the fixed injury recovery.

[0020] 2. In the present invention, during the rehabilitation process of the child, the position of the sliding seat in the sliding groove frame and the position of the sliding block in the sliding groove body can be adjusted, so as to adjust the swinging range of the child's small arm, enabling the child to make small swings of the small arm within the limited swinging range, and enabling the child's arm to recover normally.

[0021] 3. In the present invention, during the rehabilitation process of children, by adjusting the installation position of the fastening rope on the meshing cylinder base, the distance between the large arm wrapping structure and the arc-shaped back strap can be adjusted, enabling a certain range of movement in the large arm area of the child. By adjusting the swinging ranges of the large arm and the small arm of the child, the child can move the arm under restricted conditions, improving the recovery effect of the arm and restoring the arm to normal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] Figure 1 Schematic structural diagram of the whole of the present invention;

[0024] Figure 2 Schematic structural diagram of a partial cross-section of the present invention;

[0025] Figure 3 Schematic structural diagram of the present invention from another perspective;

[0026] Figure 4 For the present invention Figure 2 Schematic structural diagram of a partial enlarged view at A in the present invention;

[0027] Figure 5 For the present invention Figure 3 Schematic structural diagram of a partial enlarged view at B in the present invention;

[0028] Figure 6 For the present invention Figure 3 Schematic structural diagram of a partial enlarged view at C in the present invention;

[0029] Figure 7 Schematic plan view of a partial cross-section of the cooperation of the sliding groove frame, sliding seat, insertion rod and transmission gear in the present invention;

[0030] Figure 8 Schematic structural diagram of a partial cross-section of the cooperation of the sliding seat, insertion rod and transmission gear in the present invention;

[0031] Figure 9 Schematic structural diagram of a partial cross-section of the cooperation of the sliding groove body, sliding block and connecting rod in the present invention.

[0032] In the figure: 1. Arc-shaped strap; 2. Shoulder pad; 3. First semi-arc-shaped fastening layer; 4. First rigid arc-shaped bar; 5. Second semi-arc-shaped fastening layer; 6. Second rigid arc-shaped bar; 7. Connecting handle; 8. Hook surface sticker; 9. Flannelette sticker; 10. Rigid card seat; 11. Connecting belt; 12. Fastening buckle; 13. Sliding groove frame; 14. Sliding seat; 15. Meshing slot; 16. Insertion rod; 17. Fixed ring; 18. Ring; 19. Inner tooth groove; 20. Transmission gear; 21. Meshing sliding seat; 22. Distance-adjusting screw; 23. Sliding groove body; 24. Sliding block; 25. Connecting rope; 26. Connecting rod; 27. Damping groove; 28. Flat pull tab; 29. Fastening rope; 30. Meshing cylinder seat; 31. Elastic rope; 32. Connecting section; 33. Meshing hole; 34. Fastening rod; 35. Rotating shaft seat; 36. Rotating ring. Detailed implementation mode

[0033] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0034] As Figures 1 to 9 shown, this embodiment proposes an adjustable elastic fixing bracket for supracondylar fractures of the humerus in children, including a large arm wrapping structure, a small arm wrapping structure, and two arc-shaped straps 1. A belt buckle structure is arranged between the arc-shaped straps 1. A shoulder pad 2 is arranged on the inner arc surface at the top of the arc-shaped strap 1. During actual use, the shoulder pad 2 is made to fit the shoulders of the child, which can effectively ensure the stability of the arc-shaped strap 1 and enable the large arm wrapping structure and the small arm wrapping structure to be fixed.

[0035] The large arm wrapping structure includes two first semi-arc-shaped fastening layers 3 and two first rigid arc-shaped bars 4. A plurality of elastic bands are arranged between the first semi-arc-shaped fastening layers 3. Both sides of the first semi-arc-shaped fastening layer 3 are fixedly connected to the first rigid arc-shaped bars 4 to wrap the large arm of the child.

[0036] The small arm wrapping structure includes two second semi-arc-shaped fastening layers 5 and two second rigid arc-shaped bars 6. A plurality of elastic bands are arranged between the second semi-arc-shaped fastening layers 5. Both sides of the second semi-arc-shaped fastening layer 5 are fixedly connected to the second rigid arc-shaped bars 6 to wrap the small arm of the child with the two second semi-arc-shaped fastening layers 5.

[0037] Connecting handles 7 are arranged on the adjacent first rigid arc-shaped bars 4 and second rigid arc-shaped bars 6. A bandage can be used to wind between the two connecting handles 7 to fix the elbow of the child.

[0038] A magic tape structure is provided between the two semi-circular fastening sheaths I-3, and a magic tape structure is also provided between the two semi-circular fastening sheaths II-5. The magic tape structure includes a hook surface sticker 8 and a plush surface sticker 9. The hook surface sticker 8 and the plush surface sticker 9 are respectively provided on the two semi-circular fastening sheaths I-3 or the two semi-circular fastening sheaths II-5, so that the hook surface sticker 8 and the plush surface sticker 9 cooperate with each other to ensure that the two semi-circular fastening sheaths I-3 or the two semi-circular fastening sheaths II-5 wrap the corresponding areas of the child's arm.

[0039] Rigid card seats 10 are provided in the middle of the two arc-shaped straps 1, and a belt buckle structure is also provided between the two rigid card seats 10. The belt buckle structure is a common fastening structure in the prior art. The belt buckle structure includes a connecting belt 11 and a fastening buckle 12. Connecting belts 11 are provided at both ends of the arc-shaped strap 1, and a connecting belt 11 is also provided on the rigid card seat 10. The fastening buckle 12 is provided on one of the connecting belts 11, and the fastening buckle 12 is used to connect the two connecting belts 11. The use of the belt buckle structure can adjust the distance between the two arc-shaped straps 1 and also make the arc-shaped straps 1 closely fit the child's body.

[0040] A sliding groove frame 13 is fixedly connected to the rigid card seat 10. A sliding seat 14 with an adjustable fixed position is slidably arranged in the sliding groove frame 13 to adapt to the fixed angle of the patient's forearm. A plurality of meshing slots 15 are opened on both sides of the sliding groove frame 13, and the plurality of meshing slots 15 are longitudinally arranged on the inner side wall of the sliding groove frame 13. Insertion rods 16 penetrate through both sides of the sliding seat 14, and the insertion rods 16 extend into the corresponding meshing slots 15. After adjusting the sliding seat 14 to a suitable position in the sliding groove frame 13, the sliding seat 14 is fixed in the sliding groove frame 13 by inserting the two insertion rods 16 into the nearest meshing slots 15.

[0041] A fixing ring 17 with a notch is provided on the sliding seat 14. A circular ring 18 is fixedly connected to the connecting rope 25. The circular ring 18 is installed on the fixing ring 17 to keep the child's forearm area fixed to the sliding seat 14, prevent the forearm from shaking, and provide a protective fixing measure for the forearm area.

[0042] Internal tooth grooves 19 are provided at the adjacent ends of the two insertion rods 16. A transmission gear 20 is meshed between the two internal tooth grooves 19. An engagement chute is formed on the transmission gear 20. An engagement slider 21 is longitudinally slidably connected in the engagement chute. An adjustment screw rod 22 is fixedly connected to the engagement slider 21. The adjustment screw rod 22 is threadedly connected to the top of the sliding seat 14. When it is necessary to move the two insertion rods 16 in opposite directions simultaneously, the adjustment screw rod 22 is rotated to make the adjustment screw rod 22 longitudinally move on the top of the sliding seat 14. During the longitudinal movement of the engagement slider 21 in the engagement chute, the engagement slider 21 will drive the transmission gear 20 to rotate. Through the meshing relationship between the transmission gear 20 and the two internal tooth grooves 19, the two insertion rods 16 are moved in opposite directions.

[0043] A sliding chute body 23 is provided on the small arm wrapping structure. A sliding block 24 with an adjustable fixed position is slidably arranged in the sliding chute body 23. A connecting rope 25 is arranged between the sliding seat 14 and the sliding block 24 to limit the swinging arc of the patient's small arm. A plurality of through grooves are longitudinally formed on both sides of the sliding chute body 23. An engagement groove is formed on the sliding block 24. A connecting rod 26 is inserted between the corresponding through groove and the engagement groove. After adjusting the position of the sliding block 24, the positions of the through groove and the engagement groove are made to correspond to each other, and then the connecting rod 26 is passed through the corresponding through groove and the engagement groove to fix the sliding block 24 in the sliding chute body 23.

[0044] A damping groove 27 is communicated with the through groove. The connecting rod 26 is attached to the inner wall of the damping groove 27. Flat pull tabs 28 are provided at both ends of the connecting rod 26. The flat pull tabs 28 are located in the damping groove 27. In order to prevent the connecting rod 26 from being exposed in the outer area of the sliding chute body 23 and causing bumps between children and the connecting rod 26, in the present invention, the connecting rod 26 can be completely moved between the corresponding two damping grooves 27. Through the frictional force of the tight fit between the damping groove 27 and the connecting rod 26, not only can the connecting rod 26 be prevented from slipping out between the through groove and the engagement groove, but also people can be prevented from randomly pulling out the connecting rod 26. When it is necessary to pull out the connecting rod 26, through the distance difference between the flat pull tab 28 and the inner wall of the damping groove 27, small tools such as clips or pliers can be used to clamp the connecting rod 26 and then pull out the connecting rod 26.

[0045] It should be further noted that by adjusting the position of the sliding seat 14 on the sliding chute frame 13 and the position of the sliding block 24 in the sliding chute body 23, the area where the connecting rope 25 is exposed to the external environment can be greatly adjusted, thereby giving children sufficient activity space for the small arm and ensuring the normal progress of the rehabilitation training for supracondylar fracture of the humerus in children.

[0046] Both the upper and lower sides of the upper arm wrapping structure are provided with rope connection structures connected to multiple positions of the fastening rope 29. The other end of the fastening rope 29 is rotatably connected to the top of the sliding groove frame 13. The rope connection structure includes a meshing cylinder seat 30. An elastic rope 31 is arranged between two rigid arc-shaped strips one 4. The meshing cylinder seat 30 is arranged in the middle of the elastic rope 31. One side of the fastening rope 29 is set as a connection section 32. The connection section 32 is slidably arranged through the meshing cylinder seat 30. A plurality of meshing holes 33 are opened on both the connection section 32 and the meshing cylinder seat 30. A fastening rod 34 is arranged between two corresponding meshing holes 33. When it is necessary to move the upper arm area of the child, the specific position of the connection section 32 of the fastening rope 29 in the meshing cylinder seat 30 can be adjusted, and then the fastening rod 34 is inserted between two corresponding meshing holes 33 to keep the connection between the fastening rope 29 and the meshing cylinder seat 30. Through the change of the connection area between the fastening rope 29 and the meshing cylinder seat 30, the fixed upper arm area of the child can swing within a certain arc range;

[0047] A rotating shaft seat 35 is fixedly connected to the top of the sliding groove frame 13. Two rotating rings 36 are rotatably connected to the rotating shaft seat 35. The fastening rope 29 is fixedly connected to the rotating ring 36. When the upper arm area of the child swings parallel or perpendicular to the body trunk, the rotating ring 36 is used to adapt to the direction change of the fastening rope 29 to ensure the precise adjustability of the swing amplitude of the child's upper arm area.

[0048] The working principle of the adjustable elastic fixing bracket for supracondylar fracture of the humerus in children:

[0049] First, use two semi-circular fastening layers one 3 to wrap the upper arm of the child, then use two semi-circular fastening layers two 5 to wrap the forearm of the child. Use a bandage to wrap around the two connecting handles 7 to fix the elbow of the child. Wear the two arc-shaped back straps 1 on the trunk of the child through the belt buckle structure. After adjusting the sliding seat 14 to an appropriate position in the sliding groove frame 13, move the insertion rod 16 into the meshing slot 15. The sliding seat 14 is fixed in the sliding groove frame 13 to keep the connection between the connecting rope 25 and the sliding seat 14. Then continue to adjust the position of the sliding block 24 in the sliding groove body 23. Use the connecting rod 26 to fix the sliding block 24 in the sliding groove body 23 to keep the forearm area of the child fixed, and subsequent adjustment of the positions of the sliding seat 14 and the sliding block 24 enables the child to make small swings in the forearm area.

[0050] Adjust the specific position of the connecting section 32 of the fastening rope 29 within the engaging cylinder base 30, and then insert the fastening rod 34 between two corresponding engaging holes 33 to keep the fastening rope 29 connected to the engaging cylinder base 30, fixing the child's upper arm area. When it is necessary to allow a small range of movement of the upper arm area subsequently, adjust the connection position between the connecting section 32 of the fastening rope 29 and the engaging cylinder base 30 so that the fixed upper arm area of the child can swing within a certain arc range.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable elastic fixation bracket for supracondylar fractures of the humerus in children, comprising a large arm wrapping structure, a small arm wrapping structure and two arc-shaped braces (1), wherein a belt buckle structure is arranged between the arc-shaped braces (1), and is characterized in that, It further includes: A rigid card seat (10) is provided on the middle parts of both of the two arc-shaped straps (1). The belt buckle structure is also provided between the two rigid card seats (10). A sliding groove frame (13) is fixedly connected to the rigid card seat (10). A sliding seat (14) with an adjustable fixed position is slidably arranged in the sliding groove frame (13) to adapt to the fixed angle of the patient's forearm. A sliding groove body (23) is provided on the forearm wrapping structure. A sliding block (24) with an adjustable fixed position is slidably arranged in the sliding groove body (23). A connecting rope (25) is arranged between the sliding seat (14) and the sliding block (24) to limit the swinging arc of the patient's forearm; A fastening rope (29), and rope connection structures connected to the fastening rope (29) at multiple positions are provided on both the upper and lower sides of the upper arm wrapping structure. The other end of the fastening rope (29) is rotatably connected to the top of the sliding groove frame (13).

2. The adjustable elastic fixation bracket for supracondylar fracture of humerus in children according to claim 1, characterized in that, The upper arm wrapping structure includes: Two semi-circular fastening layers one (3), and a plurality of elastic bands are arranged between the two semi-circular fastening layers one (3); A rigid arc-shaped strip one (4), and the rigid arc-shaped strip one (4) is fixedly connected to both sides of the semi-circular fastening layer one (3).

3. An adjustable elastic fixation bracket for supracondylar fracture of the humerus in children according to claim 1, characterized in that, The forearm wrapping structure includes: Two semi-circular fastening layers two (5), and a plurality of elastic bands are arranged between the two semi-circular fastening layers two (5); A rigid arc-shaped strip two (6), and the rigid arc-shaped strip two (6) is fixedly connected to both sides of the semi-circular fastening layer two (5).

4. An adjustable elastic fixation bracket for supracondylar fractures of the humerus in children, characterized in that, A magic tape structure is arranged between the two semi-circular fastening layers one (3), and the magic tape structure is also arranged between the two semi-circular fastening layers two (5).

5. An adjustable elastic fixing bracket for supracondylar fracture of humerus in children according to claim 1, characterized in that, A plurality of meshing slots (15) are opened on both sides of the sliding groove frame (13). The plurality of meshing slots (15) are longitudinally arranged on the inner side wall of the sliding groove frame (13). Insertion rods (16) penetrate and are slidably connected to both sides of the sliding seat (14). The insertion rods (16) extend into the corresponding meshing slots (15).

6. The adjustable elastic fixing bracket for supracondylar fracture of humerus in children according to claim 5 is characterized in that, Inner tooth grooves (19) are arranged on the adjacent ends of the two insertion rods (16). A transmission gear (20) is meshed and transmitted between the two inner tooth grooves (19). A meshing chute is opened on the transmission gear (20). A meshing sliding seat (21) is longitudinally slidably connected in the meshing chute. An adjusting distance screw rod (22) is fixedly connected to the meshing sliding seat (21). The adjusting distance screw rod (22) is threadedly connected to the top of the sliding seat (14).

7. An adjustable elastic fixing bracket for supracondylar fracture of humerus in children according to claim 1, characterized in that, A plurality of through grooves are longitudinally opened on both sides of the sliding groove body (23). A meshing groove is opened on the sliding block (24). A connecting rod (26) is inserted between the corresponding through groove and the meshing groove.

8. An adjustable elastic fixing bracket for supracondylar fracture of the humerus in children, characterized in that, A damping groove (27) communicates with the through groove. The connecting rod (26) is attached to the inner wall of the damping groove (27). Flat pull tabs (28) are arranged at both ends of the connecting rod (26). The flat pull tabs (28) are located in the damping groove (27).

9. An adjustable elastic fixation bracket for supracondylar fractures of the humerus in children, characterized in that, The rope connection structure includes: The meshing cylinder base (30), an elastic rope (31) is arranged between the two hard arc-shaped strips one (4), the meshing cylinder base (30) is arranged in the middle of the elastic rope (31), one side of the fastening rope (29) is set as a connecting section (32), the connecting section (32) is slidably arranged through the meshing cylinder base (30), and a plurality of meshing holes (33) are formed in both the connecting section (32) and the meshing cylinder base (30), and a fastening rod (34) is arranged between two corresponding meshing holes (33).

10. An adjustable elastic fixation bracket for supracondylar fracture of the humerus in children according to claim 5, characterized in that, The top of the sliding groove frame (13) is fixedly connected with a rotating shaft seat (35), two rotating rings (36) are rotatably connected to the rotating shaft seat (35), and the fastening rope (29) is fixedly connected with the rotating ring (36).