A traction external fixation brace for femoral shaft fracture in children

Abstract

The utility model relates to the technical field of orthopedic medical devices, and proposes a traction external fixation brace for pediatric femoral shaft fractures, comprising a main body fixing frame, a second limb fixing frame is provided at one end edge of the main body fixing frame, a first rotating column is provided at one outer wall edge of one side of the second limb fixing frame, a first rotating frame is sleeved on the outer side of the first rotating column, a threaded cylinder is fixedly provided on the outer wall of one side of the first rotating frame, a second rotating column is provided at the outer side of the outer wall edge of the other side of the second limb fixing frame, a second rotating column is sleeved on the outer side of the second rotating column, a limiting cylinder is fixedly provided on the outer wall of one side of the second rotating frame, a third limb fixing frame is threadedly connected to one side of the threaded cylinder, a limiting ring is provided at one outer wall edge of one side of the third limb fixing frame, and a distance adjusting screw is sleeved inside the limiting ring. The utility model fixes the fracture site of the patient through the limb fixing frame, and can conveniently adjust the fixing angle, and has strong adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic medical instruments, in particular to a traction external fixation brace for femoral shaft fractures in children. Background Art

[0002] A fracture external fixator is a device for fixing fractures. Its main structure is located outside the body. It is connected to the external fixator by external fixation screws. It can be used for various types of fractures of the limbs of the body. It can effectively maintain the stability and position of the fracture and reduce the risk of fracture dislocation. At present, conservative treatment is mainly used for femoral shaft fractures in children under the age of 5, including dressing, changing, traction or hip spica or brace fixation after traction. However, for femoral shaft fractures with obvious fracture dislocation, bed rest and skin traction for 2-4 weeks are usually required before conventional hip spica or brace fixation is used, which increases the hospitalization time, cost and difficulty of nursing for the child, and it is also inevitable to cause physical and mental trauma to the child. How to avoid bed rest traction and hip spica fixation is a problem that needs to be solved urgently. However, the current traction external fixation brace has poor adjustability and a single fixation angle, which makes it difficult to achieve a good reduction of the fracture and is very inconvenient to use.

[0003] Therefore, there is a need for a traction external fixation brace for pediatric femoral shaft fractures that can easily adjust the fixation angle so that the femoral shaft fracture has a relatively good alignment and avoids bed traction and plaster fixation, and has strong adaptability. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a traction external fixation brace for pediatric femoral shaft fractures, which can conveniently adjust the fixing angle, realize the reduction and fixation of pediatric femoral shaft fractures, and has strong adaptability.

[0005] In order to achieve the above purpose, the utility model proposes the following specific solutions:

[0006] A traction external fixation brace for femoral shaft fracture in children, comprising a main body fixing frame, a second limb fixing frame is provided at one end edge of the main body fixing frame, a first rotating column is provided at one side outer wall edge of the second limb fixing frame, a first rotating frame is sleeved at the outer side of the first rotating column, a threaded cylinder is fixedly provided at one side outer wall of the first rotating frame, a second rotating column is provided at the other side outer wall edge of the second limb fixing frame, a second rotating frame is sleeved at the outer side of the second rotating column, and a limiting cylinder is fixedly provided at one side outer wall of the second rotating frame;

[0007] A third limb fixing frame is threadedly connected to one side of the threaded barrel, a limiting ring is provided on the edge of the outer wall of one side of the third limb fixing frame, a distance adjusting screw is sleeved in the limiting ring, one end of the distance adjusting screw is threadedly connected to the threaded barrel, a connecting block is provided on the edge of the outer wall on the other side of the third limb fixing frame, a limiting rod is provided in the middle of the side end surface of the connecting block, and one end of the limiting rod is inserted into the limiting barrel.

[0008] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, second clamping assemblies are symmetrically provided on both side walls of the third limb fixing frame, the second clamping assembly includes an arc-shaped plate and a second screw, third threaded holes are symmetrically opened on both side walls of the third limb fixing frame, the second screw is threadedly connected to the third threaded hole, a connecting column is provided at one end of the second screw, a rotating disk is connected to one end of the connecting column, an arc-shaped plate is sleeved on the outer side of the rotating disk, and the arc-shaped plate is made of flexible material.

[0009] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, a rotating cylinder is provided in the middle of the bottom surface of the arc-shaped plate, a connecting hole is opened on one end surface of the rotating cylinder, the rotating disk is sleeved in the rotating cylinder, and the connecting column passes through the connecting hole and is connected to the rotating disk.

[0010] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, second threaded holes are symmetrically opened on the two side walls of the second limb fixation frame, and a first clamping assembly is threadedly connected to the inner thread of the second threaded hole, and the first clamping assembly has the same structure as the second clamping assembly.

[0011] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, a first threaded hole is opened in the middle of the outer wall on the other side of the first rotating frame, and a first screw is threadedly connected to the first threaded hole, and the first screw is located on one side of the first rotating column.

[0012] As a preferred technical solution of the traction external fixation brace for pediatric femoral shaft fracture of the utility model, a retaining ring is fixedly provided on the outer side of one end of the pitch-adjusting screw, and the retaining ring is located on one side of the limiting ring.

[0013] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, a first strap frame is provided on the top of one side wall of the main body fixing frame, a first strap is provided on the top of the other side wall of the main body fixing frame, and one end of the first strap passes through the first strap frame; a first limb fixing frame is provided on the edge of one end of the main body fixing frame, the first limb fixing frame is located on one side of the second limb fixing frame, a second strap frame is provided on the top of one side wall of the first limb fixing frame, a second strap is provided on the top of the other side wall of the first limb fixing frame, and one end of the second strap passes through the second strap frame.

[0014] As an optimal technical solution of a traction external fixation brace for pediatric femoral shaft fractures of the utility model, a third strap is fixedly provided on the top of one side wall of the second limb fixing frame, a third strap frame is movably sleeved on the outside of one end of the third strap, the third strap frame is fixed to the top of the other side wall of the second limb fixing frame, a fourth strap is fixedly provided on the top of one side wall of the third limb fixing frame, a fourth strap frame is movably sleeved on the outside of one end of the fourth strap, and the fourth strap frame is fixed to the top of the other side wall of the third limb fixing frame.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] The utility model fixes the fractured limb of the patient by means of the second limb fixing frame and the third limb fixing frame. The distance between the second limb fixing frame and the third limb fixing frame can be adjusted by twisting the distance adjusting screw. The inclination angle of the third limb fixing frame relative to the second limb fixing frame can be adjusted by rotating the first rotating frame and the second rotating frame. The dynamically adjustable design makes the scheme highly adaptable to patients of different body shapes or different degrees of fracture.

[0017] The utility model provides a plurality of adjustable arc plates in the second limb fixing frame and the third limb fixing frame. The distance and clamping strength between the arc plates can be adjusted by screwing the second screw rod. The coordinated adjustment of the plurality of arc plates can adapt to the needs of different patients. At the same time, the arc plates made of flexible materials can better fit the patient's legs and reduce the patient's discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure provided by the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0022] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 For this utility model Figure 2 Enlarged schematic diagram of point C in the middle.

[0024] In the figure: 1, main body fixing frame; 11, first strap frame; 12, first strap; 2, first limb fixing frame; 21, second strap frame; 22, second strap; 3, second limb fixing frame; 31, first rotating column; 32, first rotating frame; 33, first threaded hole; 34, first screw; 35, threaded cylinder; 36, second rotating column; 37, second rotating frame; 38, limit cylinder; 39, second threaded hole; 4, first clamp Holding assembly; 5. third limb fixing frame; 51. limiting ring; 52. pitch adjusting screw; 53. retaining ring; 54. third threaded hole; 55. connecting block; 56. limiting rod; 6. second clamping assembly; 61. arc plate; 611. rotating cylinder; 612. connecting hole; 62. second screw; 621. connecting column; 622. rotating disk; 7. third strap; 71. third strap frame; 8. fourth strap; 81. fourth strap frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-5 As shown, the utility model provides the following technical solutions: a traction external fixation brace for femoral shaft fracture in children, comprising a main body fixing frame 1, a first binding frame 11 is provided on the top of one side wall of the main body fixing frame 1, a first binding band 12 is provided on the top of the other side wall of the main body fixing frame 1, one end of the first binding band 12 passes through the first binding band frame 11, a first limb fixing frame 2 is provided on one side of the first limb fixing frame 3, a second binding band frame 21 is provided on the top of one side wall of the first limb fixing frame 2, a second binding band 22 is provided on the top of the other side wall of the first limb fixing frame 2, and the second One end of the strap 22 passes through the second strap frame 21, a third strap 7 is fixedly provided on the top of one side wall of the second limb fixation frame 3, one end of the third strap 7 is movably sleeved on the outside with a third strap frame 71, the third strap frame 71 is fixed to the top of the other side wall of the second limb fixation frame 3, a fourth strap 8 is fixedly provided on the top of one side wall of the third limb fixation frame 5, one end of the fourth strap 8 is movably sleeved on the outside with a fourth strap frame 81, the fourth strap frame 81 is fixed to the top of the other side wall of the third limb fixation frame 5. The arrangement of multiple straps and strap frames can attach the fixation brace to the patient to ensure stability during use.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, a second limb fixing frame 3 is provided at one end edge of the main body fixing frame 1 for placing the fractured limb of the patient, a first rotating column 31 is provided at one side outer wall edge of the second limb fixing frame 3 to provide support for the first rotating frame 32 and enable it to rotate, a first rotating frame 32 is sleeved on the outer side of the first rotating column 31, and the inclination angle of the third limb fixing frame 5 relative to the second limb fixing frame 3 is adjusted by rotation, a first threaded hole 33 is opened in the middle of the outer wall on the other side of the first rotating frame 32, a first screw 34 is connected to the inner thread of the first threaded hole 33, and the first screw 34 is screwed to fix the first rotating frame 32. The first screw 34 is located on one side of the first rotating column 31, a threaded tube 35 is fixedly provided on the outer wall of one side of the first rotating frame 32, a second rotating column 36 is provided on the edge of the outer wall on the other side of the second limb fixing frame 3 to provide support and rotation conditions for the second rotating frame 37, a second rotating frame 37 is sleeved on the outer side of the second rotating column 36, and cooperates with the first rotating frame 32 to adjust the inclination angle of the third limb fixing frame 5 relative to the second limb fixing frame 3, a limiting tube 38 is fixedly provided on the outer wall of one side of the second rotating frame 37 to insert the limiting rod 56 to adjust the distance between the second limb fixing frame 3 and the third limb fixing frame 5, the threaded ...6 is provided on the outer side of the second rotating frame 36 to provide support and rotation conditions for the second limb fixing frame 3 A third limb fixing frame 5 is threadedly connected to one side of the cylinder 35 for placing the fractured limb of the patient. A limiting ring 51 is provided on the outer wall edge of one side of the third limb fixing frame 5 for connecting a distance adjusting screw 52. The limiting ring 51 is sleeved with the distance adjusting screw 52 for adjusting the distance between the second limb fixing frame 3 and the third limb fixing frame 5. A retaining ring 53 is fixedly provided on the outer side of one end of the distance adjusting screw 52 for limiting the distance adjusting screw 52. The retaining ring 53 is located on one side of the limiting ring 51. One end of the distance adjusting screw 52 is threadedly connected to the threaded cylinder 35. The lengths of the distance adjusting screw 52 and the threaded cylinder 35 can be adjusted according to actual needs. A connecting block 55 is provided on the edge of the outer wall on the other side of the third limb fixing frame 5, and a limiting rod 56 is provided in the middle of the side end surface of the connecting block 55. One end of the limiting rod 56 is inserted into the limiting cylinder 38. The lengths of the limiting rod 56 and the limiting cylinder 38 can be adjusted according to actual needs. The third limb fixing frame 5 is connected to the second limb fixing frame 3 through the distance adjusting screw 52 in the threaded cylinder 35 and the limiting rod 56 in the limiting cylinder 38. This scheme can conveniently adjust the distance and relative inclination angle between the third limb fixing frame 5 and the second limb fixing frame 3, and has strong adaptability to patients of different body shapes or different degrees of fractures.

[0029] See also Figure 1 , Figure 2 and Figure 5As shown, specifically, the second clamping components 6 are symmetrically arranged on the two side walls of the third limb fixing frame 5, which are used to clamp and fix the patient's fractured limb. The second clamping components 6 include an arcuate plate 61 and a second screw 62. Third threaded holes 54 are symmetrically opened on the two side walls of the third limb fixing frame 5. The third threaded holes 54 are internally threadedly connected with the second screw 62. The position of the arcuate plate 61 can be adjusted by screwing the second screw 62. A connecting column 621 is provided at one end of the second screw 62, which is used to connect the rotating disk 622 and the second screw 62. A rotating disk 622 is connected at one end of the connecting column 621. The rotating disk 622 is used to connect the second screw 62 and the arcuate plate 61. The outer side of the rotating disk 622 is sleeved with an arcuate plate 61. The arcuate plate 61 is made of a flexible material and is used to clamp the fractured limb. A rotating cylinder 611 is provided in the middle of the bottom surface of the arc plate 61, for the rotating disk 622 to rotate therein, a connecting hole 612 is opened on one end surface of the rotating cylinder 611, the rotating disk 622 is sleeved in the rotating cylinder 611, and the connecting column 621 is connected to the rotating disk 622 through the connecting hole 612, and second threaded holes 39 are symmetrically opened on the two side walls of the second limb fixing frame 3, and the first clamping assembly 4 is threadedly connected in the second threaded hole 39. The first clamping assembly 4 has the same structure as the second clamping assembly 6, and the distance and clamping force between the arc plates 61 can be adjusted by screwing the second screw rod 62. Through the coordinated adjustment of multiple arc plates 61, it can adapt to the needs of different patients. At the same time, the arc plates 61 made of flexible material can better fit the patient's legs and reduce the patient's discomfort.

[0030] The working principle and use process of this utility model:

[0031] When in use, the patient's fractured limb is placed in the second limb fixing frame 3 and the third limb fixing frame 5, and the patient's uninjured limb is placed in the first limb fixing frame 2. The brace is fixed to the patient by using the first strap 12 and the second strap 22 set on the main fixing frame 1 and the first limb fixing frame 2, and then the distance between the second limb fixing frame 3 and the third limb fixing frame 5 is adjusted by screwing the distance adjusting screw 52 to make it compatible with the patient's fractured limb. If the patient's fractured limb cannot be straightened, the inclination angle of the third limb fixing frame 5 can be adjusted by rotating the first rotating frame 32 and the second rotating frame 37 to meet the patient's needs, and then the second screw 62 is screwed to adjust the distance between the multiple arc plates 61 to make it fit the patient's fractured limb. Finally, the third strap 7 and the fourth strap 8 are used to bind and fix the patient's fractured limb to enhance stability.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A traction external fixation brace for femoral shaft fracture in children, comprising a main fixing frame (1), characterized in that: A second limb fixing frame (3) is provided at one end edge of the main body fixing frame (1); a first rotating column (31) is provided at one side outer wall edge of the second limb fixing frame (3); a first rotating frame (32) is sleeved on the outer side of the first rotating column (31); a threaded cylinder (35) is fixedly provided on one side outer wall of the first rotating frame (32); a second rotating column (36) is provided at the other side outer wall edge of the second limb fixing frame (3); a second rotating frame (37) is sleeved on the outer side of the second rotating column (36); a limiting cylinder (38) is fixedly provided on one side outer wall of the second rotating frame (37); The third limb fixing frame (5) is threadedly connected to one side of the threaded barrel (35); a limiting ring (51) is provided at the edge of the outer wall of one side of the third limb fixing frame (5); a pitch adjusting screw (52) is sleeved in the limiting ring (51); one end of the pitch adjusting screw (52) is threadedly connected to the threaded barrel (35); a connecting block (55) is provided at the edge of the outer wall of the other side of the third limb fixing frame (5); a limiting rod (56) is provided in the middle of the side end surface of the connecting block (55); one end of the limiting rod (56) is inserted into the limiting barrel (38).

2. A traction external fixation brace for femoral shaft fracture in children according to claim 1, characterized in that: The second clamping assembly (6) is symmetrically arranged on the two side walls of the third limb fixing frame (5), and the second clamping assembly (6) comprises an arc-shaped plate (61) and a second screw rod (62). The third threaded holes (54) are symmetrically opened on the two side walls of the third limb fixing frame (5), and the second screw rod (62) is connected to the inner thread of the third threaded hole (54). A connecting column (621) is arranged at one end of the second screw rod (62), and a rotating disk (622) is connected to one end of the connecting column (621). The outer side of the rotating disk (622) is sleeved with the arc-shaped plate (61), and the arc-shaped plate (61) is made of a flexible material.

3. A traction external fixation brace for femoral shaft fracture in children according to claim 2, characterized in that: A rotating cylinder (611) is provided in the middle of the bottom surface of the arc-shaped plate (61), a connecting hole (612) is opened on one end surface of the rotating cylinder (611), the rotating disk (622) is sleeved in the rotating cylinder (611), and the connecting column (621) passes through the connecting hole (612) and is connected to the rotating disk (622).

4. A traction external fixation brace for femoral shaft fracture in children according to claim 3, characterized in that: Second threaded holes (39) are symmetrically formed on both side walls of the second limb fixing frame (3), and a first clamping assembly (4) is internally threadedly connected to the second threaded hole (39), wherein the first clamping assembly (4) and the second clamping assembly (6) have the same structure.

5. A traction external fixation brace for femoral shaft fracture in children according to claim 4, characterized in that: A first threaded hole (33) is formed in the middle of the outer wall of the other side of the first rotating frame (32); a first screw rod (34) is internally threadedly connected to the first threaded hole (33); and the first screw rod (34) is located on one side of the first rotating column (31).

6. A traction external fixation brace for femoral shaft fracture in children according to claim 5, characterized in that: A retaining ring (53) is fixedly provided on the outer side of one end of the pitch-adjusting screw rod (52), and the retaining ring (53) is located on one side of the limiting ring (51).

7. A traction external fixation brace for femoral shaft fracture in children according to claim 6, characterized in that: A first strap frame (11) is fixedly provided at the top of one side wall of the main body fixing frame (1), a first strap (12) is fixedly provided at the top of the other side wall of the main body fixing frame (1), and one end of the first strap (12) passes through the first strap frame (11); a first limb fixing frame (2) is provided at one end edge of the main body fixing frame (1), the first limb fixing frame (2) is located on one side of the second limb fixing frame (3), a second strap frame (21) is fixedly provided at the top of one side wall of the first limb fixing frame (2), a second strap (22) is fixedly provided at the top of the other side wall of the first limb fixing frame (2), and one end of the second strap (22) passes through the second strap frame (21).

8. The traction external fixation brace for femoral shaft fracture in children according to claim 7, characterized in that: A third binding strap (7) is fixedly provided at the top of one side wall of the second limb fixing frame (3); a third binding strap frame (71) is movably sleeved on the outer side of one end of the third binding strap (7); the third binding strap frame (71) is fixed to the top of the other side wall of the second limb fixing frame (3); a fourth binding strap (8) is fixedly provided at the top of one side wall of the third limb fixing frame (5); a fourth binding strap frame (81) is movably sleeved on the outer side of one end of the fourth binding strap (8); the fourth binding strap frame (81) is fixed to the top of the other side wall of the third limb fixing frame (5).

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