CN111803262A - A pediatric orthopedic traction device - Google Patents

Abstract

The invention discloses a pediatric orthopaedic traction device, comprising a first base plate, a second base plate and a third base plate, wherein moving components are arranged under the first base plate, the second base plate and the third base plate, and the first base plate, the second base plate and the third base plate are all provided with moving components. The bottom plate, the second bottom plate and the third bottom plate are arranged in a straight line, a first telescopic cylinder is fixed on the first bottom plate, and a head support plate is fixed on a piston rod of the first telescopic cylinder. Beneficial effects: both legs of the patient can be pulled at the same time, and the single leg of the patient can also be pulled, and the distances between the first bottom plate, the second bottom plate and the third bottom plate can be adjusted and can be separated, Therefore, it can be suitable for children of different heights, and can be disassembled for easy handling and transportation, and the pulling force can be detected in real time by the pulling force sensor and displayed on the display screen.

Description

A pediatric orthopedic traction device

technical field

The invention relates to the technical field of pediatric orthopedics, in particular to a pediatric orthopedic traction device.

Background technique

At present, traction devices are mainly used for performing orthopedic surgery of limbs, and lateral and horizontal traction can be performed on the limbs of patients during the operation. With the changes of the times and society, the spectrum of orthopedic injuries and diseases has changed significantly. For example, diseases such as bone and joint tuberculosis, osteomyelitis, and polio have decreased significantly, and trauma caused by traffic accidents has increased significantly. The existing orthopaedic traction frame can only perform traction on both legs of the patient at the same time, which is inconvenient when it is necessary to perform traction on a single leg, and the existing traction device cannot intuitively know the pulling force during traction. Precise traction cannot be performed, and most of the existing traction devices are integrated, which is not only large in size and inconvenient for handling and transportation, but also inconvenient to adjust, especially for children's traction devices, where children's heights vary greatly. Some traction devices cannot be adjusted according to children of different heights, which is inconvenient in the specific use process.

For the problems in the related technologies, no effective solutions have been proposed so far.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pediatric orthopaedic distraction device to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a pediatric orthopaedic traction device includes a first bottom plate, a second bottom plate and a third bottom plate, and the first bottom plate, the second bottom plate and the third bottom plate are all provided with The moving assembly, the first base plate, the second base plate and the third base plate are arranged in a straight line, a first telescopic cylinder is fixed on the first base plate, and a piston rod of the first telescopic cylinder is fixedly installed There is a head support plate, side plates are fixed on both sides of the upper end of the head support plate, an arc plate is fixed on the top of the head support plate, a second telescopic cylinder is fixed on the second bottom plate, and the second telescopic cylinder is fixed on the second bottom plate. A body support plate is fixed on the second telescopic cylinder, one end of the body support plate is provided with a body restraint device, the other end of the body support plate is provided with two thigh restraint devices, and the third bottom plate is provided with a body restraint device. A concave base is fixed, and two sliding bars are fixed between the two ends of the concave base. The outer wall of the sliding bar is provided with a sliding block, and the middle of the sliding block is provided with two sliding rods. A sliding hole matched with the sliding rod, the sliding holes are respectively slidably sleeved on the outer wall of the sliding rod, a third telescopic cylinder is fixed on the sliding block, and a foot is fixed on the third telescopic cylinder A supporting plate, a baffle is fixed on the end of the foot supporting plate, two ankle restraining devices are arranged on the foot supporting plate, the inner wall of the baffle is provided with a foot restraining device, and the first telescopic A first screw rod is fixed on the outer wall of the cylinder near the second telescopic cylinder, and a second screw rod is fixed on the outer wall of the second telescopic cylinder near the first telescopic cylinder, and the first screw rod is far away from the first screw rod. The outer wall of one end of the first telescopic cylinder is threadedly connected with a first threaded barrel, one end of the first threaded barrel away from the first screw rod is threadedly connected with the second screw rod, and the first screw rod is connected to the first screw rod. The helical directions of the threads of the two screw rods are opposite, the outer wall of the second telescopic cylinder away from the second screw rod is fixed with a third screw rod, and the end of the third screw rod away from the second telescopic cylinder is threadedly connected with a third screw rod. For the second threaded cylinder, a first fixing plate is fixed on one end of the third base plate close to the second base plate, and a fourth screw rod is fixed at the end of the first fixing plate close to the second base plate. The end of the fourth screw rod away from the first fixing plate is threadedly connected with the end of the second screw cylinder away from the third screw rod, and the helical direction of the third screw rod and the fourth screw rod are opposite to each other, A second fixing plate is fixed on one end of the third bottom plate away from the first fixing plate, a fourth telescopic cylinder is fixed on the inner wall of the upper end of the second fixing plate, and one end of the piston rod of the fourth telescopic cylinder is fixedly arranged. There is a tension sensor, one end of the tension sensor away from the fourth telescopic cylinder is fixedly connected to the outer wall of the third telescopic cylinder, the third base plate is fixed with a processor, and the second fixed plate is fixed with a mounting plate A bracket, a display screen is fixed on the mounting bracket, and both the tension sensor and the display screen are electrically connected with the processor.

Further, the moving assembly includes bearings, bearings are fixed under the four corners of the first base plate, the second base plate and the third base plate, and wheel brackets are fixed under the bearings, so A moving wheel is installed under the wheel bracket.

Further, a foot brake device is installed on one side of the wheel bracket.

Further, a sponge pad is fixed on the head support plate.

Further, the body restraint device includes a first restraint belt and a second restraint belt, the first restraint belt and the second restraint belt are respectively fixed on both sides of the body support plate, the first restraint belt and the second restraint belt are respectively fixed on both sides of the body support plate. The second restraint straps are fixed by Velcro bonding.

Further, the thigh restraint device includes a third restraint belt and a fourth restraint belt, the third restraint belt and the fourth restraint belt are both fixed on the body support plate, and the third restraint belt and the corresponding The fourth restraint straps are fixed by Velcro.

Further, the ankle restraint device includes a fifth restraint belt and a sixth restraint belt, the fifth restraint belt and the sixth restraint belt are both fixed on the foot support plate, the fifth restraint belt and The corresponding sixth restraint straps are bonded and fixed by Velcro.

Further, the foot restraint device includes a seventh restraint belt and an eighth restraint belt, the seventh restraint belt and the eighth restraint belt are both fixed on both sides of the baffle, the seventh restraint belt and the The eighth restraint straps are fixed by Velcro bonding.

Further, the outer walls of the first threaded barrel and the second threaded barrel are both processed with anti-skid patterns.

Further, a handle is fixed on the side of the second fixing plate away from the fourth telescopic cylinder.

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

(1) In the present invention, the first bottom plate, the second bottom plate, the third bottom plate, the first telescopic cylinder, the head support plate, the second telescopic cylinder, the body support plate, the third telescopic cylinder, the foot support plate, the first wire The rod, the second screw, the first screw barrel, the third screw, the fourth screw, the second screw barrel, the tension sensor, the processor and the display screen, can simultaneously pull the patient's legs, and can also target the patient The single leg is used for traction, and the distances between the first bottom plate, the second bottom plate and the third bottom plate can be adjusted, and can be separated, so that it can be suitable for children of different heights, and can be separated for easy handling and transportation. It can be transported, and can use the tension sensor to detect the pulling force in real time and display it on the display screen.

(2) The present invention can facilitate the movement of the entire device by providing the bearing, the wheel bracket, the moving wheel and the foot-operated braking device, and the moving wheel can be locked by the foot-operated braking device.

(3) The present invention can increase the comfort of the patient's head by setting the sponge pad.

(4) In the present invention, the body of the patient can be restrained and fixed by setting the first restraint belt and the second restraint belt.

(5) The present invention can fix the thigh root of the patient by setting the third restraint belt and the fourth restraint belt.

(6) In the present invention, the ankle of the patient can be restrained and fixed by setting the fifth restraint belt and the sixth restraint belt.

(7) In the present invention, the patient's feet can be restrained and fixed by setting the seventh restraint belt and the eighth restraint belt.

(8) The present invention can increase the anti-skid performance of the outer walls of the first threaded barrel and the second threaded barrel by setting the anti-skid pattern, thereby facilitating the rotation of the first threaded barrel and the second threaded barrel.

(9) In the present invention, by setting the handle, the entire device can be easily moved through the handle.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a pediatric orthopedic distraction device according to an embodiment of the present invention;

2 is a top view of a head support in a pediatric orthopaedic distraction device according to an embodiment of the present invention;

3 is a right side view of a head support in a pediatric orthopedic distraction device according to an embodiment of the present invention;

4 is a top view of a body support in a pediatric orthopedic distraction device according to an embodiment of the present invention;

5 is a schematic structural diagram of a body restraint device in a pediatric orthopaedic traction device according to an embodiment of the present invention;

6 is a schematic structural diagram of a thigh restraint device in a pediatric orthopaedic traction device according to an embodiment of the present invention;

7 is a top view of a foot support in a pediatric orthopedic traction device according to an embodiment of the present invention;

8 is a left side view of a foot support in a pediatric orthopedic traction device according to an embodiment of the present invention;

9 is a schematic structural diagram of a slider and a concave base in a pediatric orthopaedic distraction device according to an embodiment of the present invention.

Reference number:

1. The first bottom plate; 2. The second bottom plate; 3. The third bottom plate; 4. The first telescopic cylinder; 5. The head support plate; 6. The side plate; , body support plate; 10, body restraint device; 11, thigh restraint device; 12, concave base; 13, slide bar; 14, slider; 15, third telescopic cylinder; 16, foot support plate; 17, baffle ; 18, ankle restraint device; 19, foot restraint device; 20, the first screw; 21, the second screw; 22, the first thread cylinder; 23, the third screw; 24, the second thread cylinder; 25 , the first fixed plate; 26, the fourth screw; 27, the second fixed plate; 28, the fourth telescopic cylinder; 29, the tension sensor; 30, the processor; 31, the mounting bracket; 32, the display screen; 33, the bearing ; 34, wheel bracket; 35, moving wheel; 36, foot brake; 37, the first restraint belt; 38, the second restraint belt; 39, the third restraint belt; 40, the fourth restraint belt; 41, Fifth restraint belt; 42, sixth restraint belt; 43, seventh restraint belt; 44, eighth restraint belt; 45, handle.

Detailed ways

Below, in conjunction with the accompanying drawings and specific embodiments, the invention is further described:

Example 1:

1-9, a pediatric orthopaedic traction device according to an embodiment of the present invention includes a first base plate 1, a second base plate 2 and a third base plate 3, the first base plate 1, the second base plate 2 and the There are moving components under the third bottom plate 3 , the first bottom plate 1 , the second bottom plate 2 and the third bottom plate 3 are arranged in a straight line, and a first telescopic cylinder 4 is fixed on the first bottom plate 1 , a head support plate 5 is fixed on the piston rod of the first telescopic cylinder 4, side plates 6 are fixed on both sides of the upper end of the head support plate 5, and an arc shape is fixed on the top of the head support plate 5 Plate 7, a second telescopic cylinder 8 is fixed on the second bottom plate 2, a body support plate 9 is fixed on the second telescopic cylinder 8, and a body restraint device 10 is arranged on one end of the body support plate 9, The other end of the body support plate 9 is provided with two thigh restraint devices 11 , the third bottom plate 3 is fixedly provided with a concave base 12 , and a number of the concave base 12 are fixed between the two ends. There are two sliding rods 13 , the outer wall of the sliding rod 13 is provided with a sliding block 14 , and the middle of the sliding block 14 is provided with two sliding holes matching the sliding rod 13 . They are respectively slidably sleeved on the outer wall of the sliding rod 13 , a third telescopic cylinder 15 is fixed on the sliding block 14 , and a foot support plate 16 is fixed on the third telescopic cylinder 15 , and the end of the foot support plate 16 is fixed. A baffle plate 17 is fixed on the upper plate, two ankle restraint devices 18 are arranged on the foot support plate 16, and a foot restraint device 19 is arranged on the inner wall of the baffle plate 17. The first telescopic cylinder 4 is close to the A first screw rod 20 is fixed on the outer wall of one side of the second telescopic cylinder 8 , and a second screw rod 21 is fixed on the outer wall of the second telescopic cylinder 8 near the first telescopic cylinder 4 . The outer wall of one end of the rod 20 away from the first telescopic cylinder 4 is threadedly connected with a first threaded barrel 22 , and one end of the first threaded barrel 22 away from the first screw rod 20 is threadedly connected with the second screw rod 21 . The helical directions of the threads of the first screw rod 20 and the second screw rod 21 are opposite, and a third screw rod 23 is fixed on the outer wall of the second telescopic cylinder 8 away from the second screw rod 21. One end of the screw rod 23 away from the second telescopic cylinder 8 is threadedly connected with a second threaded cylinder 24 , and one end of the third bottom plate 3 close to the second bottom plate 2 is fixedly provided with a first fixing plate 25 . A fourth screw rod 26 is fixed on the upper end of the plate 25 close to the second bottom plate 2, and the fourth screw rod 26 is far away from the first fixing plate 25 and the second screw cylinder 24 is far away from the third screw rod 26. One end of the screw rod 23 is threadedly connected, the third screw rod 23 and the fourth screw rod 26 have opposite helical directions of the screw threads, and one end of the third base plate 3 away from the first fixing plate 25 is fixedly provided with a second fixing plate Plate 27, a fourth telescopic cylinder 28 is fixed on the inner wall of the upper end of the second fixing plate 27, and a tension sensor 29 is fixed at one end of the piston rod of the fourth telescopic cylinder 28, and the tension sensor 29 is far away from the fourth telescopic cylinder One end of the cylinder 28 is fixedly connected to the outer wall of the third telescopic cylinder 15, and the third bottom A processor 30 is fixed on the board 3, a mounting bracket 31 is fixed on the second fixing plate 27, and a display screen 32 is fixed on the mounting bracket 31, and the tension sensor 29 and the display screen 32 are both fixed. It is electrically connected with the processor 30 .

Through the above solution of the present invention, both legs of the patient can be pulled at the same time, and the single leg of the patient can also be pulled, and the distance between the first bottom plate 1 , the second bottom plate 2 and the third bottom plate 3 can be adjusted. , and can be disassembled, so that it can be suitable for children of different heights, and can be disassembled to facilitate handling and transportation, and can use the tension sensor 29 to detect the pulling force in real time and display it on the display screen 32.

Embodiment 2:

Referring to FIGS. 1 and 3 , for the moving assembly, the moving assembly includes a bearing 33 , and four corners of the first base plate 1 , the second base plate 2 and the third base plate 3 are fixedly provided with Bearings 33, wheel brackets 34 are fixed under the bearings 33, and movable wheels 35 are installed under the wheel brackets 34; The moving device 36; for the head support plate 5, a sponge pad is fixed on the head support plate 5.

Through the above solution of the present invention, the moving wheel 35 can facilitate the movement of the whole device, and the moving wheel 35 can be locked by the foot brake device 36, and the sponge pad can increase the comfort of the patient's head.

Embodiment three:

4-6, for the body restraint device 10, the body restraint device 10 includes a first restraint belt 37 and a second restraint belt 38, the first restraint belt 37 and the second restraint belt 38 are respectively Fixed on both sides of the body support plate 9, the first restraint belt 37 and the second restraint belt 38 are fixed by Velcro bonding; for the thigh restraint device 11, the thigh restraint device 11 includes The third restraint belt 39 and the fourth restraint belt 40, the third restraint belt 39 and the fourth restraint belt 40 are both fixed on the body support plate 9, the third restraint belt 39 and the corresponding The fourth restraining straps 40 are fixed by velcro bonding.

Through the above solution of the present invention, the first restraint belt 37 and the second restraint belt 38 can restrain and fix the patient's body, and the third restraint belt 39 and the fourth restraint belt 40 can fix the thigh root of the patient.

Embodiment 4:

7-8, for the ankle restraint device 18, the ankle restraint device 18 includes a fifth restraint belt 41 and a sixth restraint belt 42, the fifth restraint belt 41 and the sixth restraint belt 42 are fixed on the foot support plate 16, and the fifth restraint belt 41 and the corresponding sixth restraint belt 42 are fixed by Velcro bonding; for the foot restraint device 19, the foot restraint The device 19 includes a seventh restraint belt 43 and an eighth restraint belt 44, the seventh restraint belt 43 and the eighth restraint belt 44 are fixed on both sides of the baffle 17, and the seventh restraint belt 43 and all the The eighth restraint straps 44 are fixed by Velcro.

Through the above solution of the present invention, the fifth restraint belt 41 and the sixth restraint belt 42 can restrain and fix the patient's ankle, and the seventh restraint belt 43 and the eighth restraint belt 44 can restrain and fix the patient's foot.

Embodiment 5:

Referring to FIG. 1 , for the first threaded barrel 22 , the outer walls of the first threaded barrel 22 and the second threaded barrel 24 are both processed with anti-skid lines; for the second fixing plate 27 , the second fixing A handle 45 is fixed on the side of the plate 27 away from the fourth telescopic cylinder 28 .

Through the above solution of the present invention, the anti-slip pattern can increase the anti-slip performance of the outer walls of the first threaded barrel 22 and the second threaded barrel 24 , so that the first threaded barrel 22 and the second threaded barrel 24 can be easily rotated and moved by the handle 45 . the entire device.

In order to facilitate the understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process will be described in detail below.

In practical application, the distance between the first telescopic cylinder 4 and the second telescopic cylinder 8 can be adjusted by rotating the first threaded cylinder 22, so that the distance between the head support plate 5 and the body support plate 9 can be adjusted. The two-threaded barrel 24 can adjust the distance between the second bottom plate 2 and the third bottom plate 3, so as to adjust the distance between the body support plate 9 and the foot support plate 16, so as to be suitable for children of different heights. The telescopic cylinder 4, the second telescopic cylinder 8 and the third telescopic cylinder 15 can control the lifting and lowering of the head support board 5, the body support board 9 and the foot support board 16, and the head support board 5, the body support board 9 and the foot support board The lower height of the plate 16 facilitates the transfer of the patient to the head rest 5, body rest 9 and foot rest 16, and then raises the head rest 5, body rest 9 and foot rest 16 to the appropriate height It is convenient for medical staff to restrain and fix the patient, and then restrain and fix the patient's body, thigh, ankle and foot respectively, and then the patient's leg can be pulled by controlling the contraction of the fourth telescopic cylinder 28, and the tension sensor 29 can be real-time. Detect the magnitude of the pulling force and transmit the detected data to the processor 30 for display on the display screen 32, so that the magnitude of the pulling force during pulling can be accurately controlled, and the two legs of the patient can be pulled separately, and the single leg can be pulled. and during handling and transportation, the first threaded barrel 22 and the second threaded barrel 24 can be disassembled by rotating the first threaded barrel 22 and the second threaded barrel 24, so that the traction device can be split into three parts, which can It is convenient for packing, handling and transportation. The moving wheel 35 can facilitate the movement of the whole device, and the moving wheel 35 can be locked by the foot brake device 36. The sponge pad can increase the comfort of the patient's head. The first restraint belt 37 and the second restraint belt 38 can restrain and fix the body of the patient, the third restraint belt 39 and the fourth restraint belt 40 can fix the thigh root of the patient, and the fifth restraint belt 41 and the sixth restraint belt 42 can be used for the patient. The ankle is restrained and fixed, the seventh restraint belt 43 and the eighth restraint belt 44 can restrain and fix the patient's foot, and the anti-slip pattern can increase the anti-skid performance of the outer walls of the first threaded barrel 22 and the second threaded barrel 24, thereby facilitating the The first threaded barrel 22 and the second threaded barrel 24 are rotated, and the entire device can be easily moved through the handle 45 .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A pediatric orthopedic traction device, characterized in that it comprises a first bottom plate (1), a second bottom plate (2) and a third bottom plate (3), the first bottom plate (1), the second bottom plate ( 2) and the third bottom plate (3) are provided with moving components. 2. A pediatric orthopedic traction device according to claim 2, characterized in that, the first base plate (1), the second base plate (2) and the third base plate (3) are arranged in a straight line, A first telescopic cylinder (4) is fixed on the first bottom plate (1), a head support plate (5) is fixed on the piston rod of the first telescopic cylinder (4), and the head support plate (5) ) Side plates (6) are fixed on both sides of the upper end, an arc plate (7) is fixed on the top of the head support plate (5), and a second telescopic cylinder is fixed on the second bottom plate (2). (8), a body support plate (9) is fixed on the second telescopic cylinder (8), and a body restraint device (10) is provided on one end of the body support plate (9). ) is provided with two thigh restraint devices (11) on the other end, a concave base (12) is fixed on the third bottom plate (3), and the two ends of the concave base (12) are fixed between There are two sliding rods (13) in number, the outer wall of the sliding rod (13) is provided with a sliding block (14), and the middle part of the sliding rod (14) is provided with two sliding rods (13), which are connected with the sliding rod. (13) Matching sliding holes, the sliding holes are respectively slidably sleeved on the outer wall of the sliding rod (13), and a third telescopic cylinder (15) is fixed on the sliding block (14). A foot support plate (16) is fixed on the telescopic cylinder (15), a baffle plate (17) is fixed on the end of the foot support plate (16), and the foot support plate (16) is provided with a number of two An ankle restraint device (18) is provided, the inner wall of the baffle plate (17) is provided with a foot restraint device (19), and the outer wall of the first telescopic cylinder (4) close to the second telescopic cylinder (8) is fixedly provided. There is a first screw rod (20), a second screw rod (21) is fixedly arranged on the outer wall of the second telescopic cylinder (8) on one side close to the first telescopic cylinder (4), and the first screw rod (20) ) A first threaded barrel (22) is threadedly connected to the outer wall of one end away from the first telescopic cylinder (4), and one end of the first threaded barrel (22) away from the first screw rod (20) is connected with the second screw The rod (21) is threaded, the first screw rod (20) and the second screw rod (21) have opposite helical directions, and the second telescopic cylinder (8) is away from the second screw rod (21) ) on one side of the outer wall is fixedly provided with a third screw rod (23), and one end of the third screw rod (23) away from the second telescopic cylinder (8) is threadedly connected with a second screw cylinder (24), the third screw rod (23) A first fixing plate (25) is fixed on one end of the bottom plate (3) close to the second bottom plate (2), and a first fixing plate (25) is fixed on the side close to the second bottom plate (2) at the upper end of the first fixing plate (25). A fourth screw (26), one end of the fourth screw (26) away from the first fixing plate (25) and one end of the second threaded cylinder (24) away from the third screw (23) are threaded connection, the helical direction of the thread of the third screw (23) and the fourth screw (26) is opposite, and the end of the third bottom plate (3) away from the first fixing plate (25) is fixedly provided with The second fixing plate (27), the first A fourth telescopic cylinder (28) is fixed on the inner wall of the upper end of the two fixing plates (27), and a tension sensor (29) is fixed at one end of the piston rod of the fourth telescopic cylinder (28). The tension sensor (29) is far away from the One end of the fourth telescopic cylinder (28) is fixedly connected to the outer wall of the third telescopic cylinder (15), a processor (30) is fixed on the third bottom plate (3), and the second fixing plate (27) A mounting bracket (31) is fixed on the mounting bracket (31), a display screen (32) is fixed on the mounting bracket (31), and both the tension sensor (29) and the display screen (32) are connected to the processor (30 ) electrical connection; the moving assembly includes a bearing (33), and four corners of the first bottom plate (1), the second bottom plate (2) and the third bottom plate (3) are fixedly provided with Bearings (33), wheel brackets (34) are fixed under the bearings (33), and moving wheels (35) are installed under the wheel brackets (34). 3 . The pediatric orthopaedic traction device according to claim 2 , wherein a foot brake device ( 36 ) is installed on one side of the wheel bracket ( 34 ). 4 . 4 . The pediatric orthopedic traction device according to claim 2 , wherein a sponge pad is fixed on the head support plate ( 5 ). 5 . 5. A pediatric orthopaedic traction device according to claim 2, wherein the body restraint device (10) comprises a first restraint belt (37) and a second restraint belt (38), the first restraint The belt (37) and the second restraint belt (38) are respectively fixed on both sides of the body support plate (9), and pass between the first restraint belt (37) and the second restraint belt (38) Velcro adhesive fixation. 6. A pediatric orthopaedic traction device according to claim 2, wherein the thigh restraint device (11) comprises a third restraint belt (39) and a fourth restraint belt (40), the third restraint Both the belt (39) and the fourth restraint belt (40) are fixed on the body support plate (9), and between the third restraint belt (39) and the corresponding fourth restraint belt (40) Fastened by Velcro adhesive. 7. A pediatric orthopaedic traction device according to claim 2, wherein the ankle restraint device (18) comprises a fifth restraint belt (41) and a sixth restraint belt (42), the fifth restraint belt (42) Both the restraint belt (41) and the sixth restraint belt (42) are fixed on the foot support plate (16), and the fifth restraint belt (41) and the corresponding sixth restraint belt (42) are each fixed on the foot support plate (16). It is fixed by velcro adhesive. 8. A pediatric orthopaedic traction device according to claim 2, wherein the foot restraint device (19) comprises a seventh restraint belt (43) and an eighth restraint belt (44), the seventh restraint Both the belt (43) and the eighth restraint belt (44) are fixed on both sides of the baffle plate (17), and magic is passed between the seventh restraint belt (43) and the eighth restraint belt (44) Adhesive fixation. 9 . The pediatric orthopaedic traction device according to claim 2 , wherein the outer walls of the first threaded barrel ( 22 ) and the second threaded barrel ( 24 ) are both processed with anti-skid patterns. 10 . 10 . The pediatric orthopaedic traction device according to claim 2 , wherein a handle ( 45 ) is fixed on the side of the second fixing plate ( 27 ) away from the fourth telescopic cylinder ( 28 ). 11 .

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