Multi-dimensional adjustable traction device for pediatric orthopedic nursing

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a multi-dimensional adjustable traction device for pediatric orthopedic nursing, which comprises a bottom plate and further comprises a shaking assembly connected to the bottom plate; the bed frame is connected to the output end of the rocking assembly, an upper lying plate and a lower lying plate which can rotate are connected to the bed frame, and the same mattress is placed on the upper lying plate and the lower lying plate; and the traction mechanism comprises a fixing assembly and a traction assembly. The traction mechanism and the fixing assembly are arranged to limit the legs of a pediatric patient, injury and pain caused by leg movement of the patient are relieved when the patient is nursed, the direction of traction force is the same as the direction of a fracture line, and a good treatment effect is guaranteed; the bed frame is driven by the shaking assembly to slightly shake front and back, the mood of a child patient is pacified, the metal block which is magnetically locked is kept stable relative to the bed frame, and traction stability is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a traction device for pediatric orthopedic care with multi-dimensional adjustment. Background Art

[0002] When a patient has a lower limb fracture, especially when there is overlap and displacement at the fracture end, as well as in the early treatment of mild contracture deformities of the hip joint and knee joint, the bone traction treatment method is often used. First, a puncture device is used to puncture the calcaneus, and then it is connected to the traction device. The traction device applies a traction force, which can help restore the length, alignment, and rotation of the lower limb, create conditions for subsequent treatment, reduce the irritation and damage of the fracture end to the surrounding tissues, and relieve pain and swelling. In the traditional technology, usually a traction rope is used in combination with a suspended weight to apply the traction force. In this way, it is not convenient to adjust the magnitude of the traction force, and the weight is prone to shaking, which affects the traction treatment effect and increases the pain of the patient. Especially for younger patients, the reaction will be more intense, enhancing the discomfort of the patient.

[0003] In the prior art, a magnetic force component with controllable magnetic attraction is used to traction a pull rope, which is convenient for controlling the accuracy of traction force adjustment, and an L-shaped foot limiting plate is used to fix the patient's foot. In this way, there is a lack of limitation on the patient's thigh and calf, and it is impossible to effectively keep the direction of the traction force the same as the direction of the fracture line. When the patient moves unconsciously, it increases the harm and pain to the patient's leg and reduces the treatment effect; a rotatable support plate is used to support the patient's leg. In this way, there is a lack of comfort for pediatric patients, and when the bed frame shakes or the patient moves, it is easy to affect the traction effect of the traction component, reducing the stability and continuity of the traction. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned drawbacks existing in the prior art, and to propose a traction device for pediatric orthopedic care with multi-dimensional adjustment.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A traction device for pediatric orthopedic care with multi-dimensional adjustment, including a bottom plate, and further including: A rocking assembly, the rocking assembly is connected to the bottom plate; A bed frame, the bed frame is connected to the output end of the rocking assembly, and a rotatable upper lying plate and a lower lying plate are connected to the bed frame, and the same mattress is placed on the upper lying plate and the lower lying plate; Traction mechanism, the traction mechanism includes a fixing component and a traction component, the fixing component includes a side plate placed on the mattress, a bandage and two connecting cables are connected to the side plate, one end of the connecting cable away from the side plate is fixedly connected to a spring, and one end of the two springs away from the connecting cable is fixedly connected to the same footrest, the footrest is placed on the mattress, and a through groove for the calcaneus of the patient's foot to expose is opened at the bottom, the traction component is connected to the bed frame, and the working end penetrates through the calcaneus and is used for traction of the calcaneus.

[0006] Preferably, a moving device is installed at the bottom of the bottom plate, and side guard plates are rotatably connected to both sides of the bed frame in a lockable manner.

[0007] Preferably, the rocking component includes a first driving device installed on the bottom plate, and a plurality of arc-shaped rods rotatably connected to the bottom plate. The plurality of arc-shaped rods are distributed in a rectangular array on the bottom plate. The bottom ends of the plurality of arc-shaped rods are all connected to the output end of the first driving device, and the top ends are rotatably connected to the same fixed frame. The top of the fixed frame is fixedly connected to the bed frame, and the first driving device is used to drive the fixed frame to rock through the plurality of arc-shaped rods.

[0008] Preferably, a second driving device and a third driving device are installed at the bottom of the bed frame. The output end of the second driving device is connected to an upward pushing frame, and the top of the upward pushing frame is fixedly connected to the upper lying board. The second driving device is used to adjust the angle of the upper lying board through the upward pushing frame. The output end of the third driving device is connected to a downward pushing frame, and the top of the downward pushing frame is fixedly connected to the lower lying board. The third driving device adjusts the angle of the lower lying board through the downward pushing frame.

[0009] Preferably, two placement frames are fixedly connected to the side surface of the side plate, the bandage is fixedly connected to the placement frame, both of the two bandages are fixed on the thighs of the child, and electric reelers are installed on both sides of the placement frame close to the knee. One end of the two connecting cables away from the spring is respectively wound around the output ends of the two electric reelers.

[0010] Preferably, the footrest is L-shaped and is fitted with the child's foot in a matching manner. A fixing strap is fixedly connected to the footrest, and the fixing strap is fixed on the instep of the child's foot.

[0011] Preferably, a sliding rod is fixedly connected to the bed frame, and the traction assembly includes an insertion device inserted into the calcaneus, an adjusting device lockably slidably connected to the sliding rod, the insertion device is fixedly connected to a traction rope at one end away from the calcaneus, the top of the adjusting device is connected to an adjustable fixed pulley, and the side is fixedly connected to a fixed cylinder, the end of the traction rope away from the insertion device passes around the top of the fixed pulley and extends into the interior of the fixed cylinder, and is fixedly connected to a metal block, and an electromagnetic adsorption device is installed at the bottom end of the fixed cylinder, the metal block is clearance-matched with the internal clearance of the fixed cylinder, and is magnetically matched with the electromagnetic adsorption device.

[0012] Preferably, the top of the adjusting device is fixedly connected to a support frame, an adjusting knob is rotatably installed on the support frame, the output end of the adjusting knob is fixedly connected to a support rod, the bottom end of the support rod is rotatably connected to the support frame, and the top end is rotatably connected to a fixed pulley, and the angle of the support rod is adjusted when the adjusting knob is rotated.

[0013] Preferably, a tension sensor is installed between the metal block and the traction rope, and the tension sensor and the electromagnetic adsorption device are electrically connected to a controller, and the controller is installed on the bed frame. The controller receives the signal of the tension sensor to control the working state of the electromagnetic adsorption device.

[0014] Preferably, a bracket is fixedly connected to the top of the fixed cylinder, a guide wheel is rotatably connected to the bracket, and the traction rope passes around the top of the guide wheel and coaxially extends into the interior of the fixed cylinder.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The present invention sets a traction mechanism, and the fixing component limits the leg of the pediatric patient, limits the thigh by the side plate and the strap, limits the foot by the footrest, and limits the calf by the connecting rope and spring between the two, so as to reduce the injury and pain caused by the leg movement of the patient during the nursing, and keep the calf and the subsequent traction component in the same straight line, so that the direction of the traction force is the same as the direction of the fracture line to ensure a good treatment effect; the traction component pulls the calcaneus of the child's foot, and the calcaneus is pulled by the traction rope and the insertion device through the gravity of the metal block and the magnetic attraction of the electromagnetic adsorption device to the metal block. The electromagnetic adsorption device is convenient to adjust the size of the traction force, and also forms a magnetic locking effect on the metal block, thereby improving the stability of the metal block, reducing shaking, and making the patient feel more comfortable; the shaking component drives the bed frame to shake slightly back and forth to soothe the emotions of the pediatric patient, and the metal block locked by the magnetism remains relatively stable with the bed frame, and the traction stability is maintained while shaking the pediatric patient.

[0016] 2. By providing a connecting cable and a spring, the retractable connecting cable of the present invention can easily adapt to the legs of patients with different lengths; the spring can absorb the instantaneous tensile force fluctuations generated by the patient's body position changes or muscle contractions during traction, avoiding soft tissue tearing or secondary fracture end injuries caused by sudden increases in the traction force; the elastic deformation of the spring can compensate for the small length changes of the connecting cable caused by limb movements, ensuring continuous and uniform traction force, avoiding the problem of intermittent traction force caused by limb movements in traditional rigid traction devices, and improving the stability and continuity of traction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is an overall axonometric structural schematic diagram of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0018] Figure 2 FIG. is a structural schematic diagram of the bed frame and side guard plate of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0019] Figure 3 FIG. is a structural schematic diagram of the first driving device and the bottom plate of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0020] Figure 4 FIG. is a structural schematic diagram of the bottom plate and its connecting components of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0021] Figure 5 FIG. is a structural schematic diagram of the upper lying board and the lower lying board of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0022] Figure 6 FIG. is a structural schematic diagram of the fixing component and a part of the traction component of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0023] Figure 7 FIG. is a structural schematic diagram of the traction component of a pediatric orthopedic nursing traction device with multi-dimensional adjustment proposed by the present invention.

[0024] In the figure: 1. Bed frame; 2. Side guard plate; 3. Upper lying board; 4. Lower lying board; 5. Sliding rod; 6. Bottom plate; 7. Moving device; 8. First driving device; 9. Curved arc rod; 10. Mattress; 11. Second driving device; 12. Upper push frame; 13. Third driving device; 14. Lower push frame; 15. Adjusting knob; 16. Fixed frame; 17. Side plate; 18. Bandage; 19. Connecting cable; 20. Spring; 21. Fixed belt; 22. Footrest; 23. Interpenetrating device; 24. Metal block; 25. Fixed cylinder; 26. Electromagnetic adsorption device; 27. Adjusting device; 28. Fixed pulley. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Refer to Figures 1-5 , a traction device for pediatric orthopedic care with multi-dimensional adjustment, including a bottom plate 6, and further including: A shaking assembly, which is connected to the bottom plate 6.

[0027] A moving device 7 is installed at the bottom of the bottom plate 6, and side guard plates 2 are rotatably connected to both sides of the bed frame 1 in a lockable manner.

[0028] The moving device 7 adopts a lockable universal wheel structure in the prior art, which is convenient for moving the bottom plate 6 and the components thereon.

[0029] The side guard plates 2 form a protective effect on the patients on the bed frame 1, effectively preventing the patients from falling off the bed frame 1.

[0030] A bed frame 1, which is connected to the output end of the shaking assembly. A rotatable upper lying plate 3 and a lower lying plate 4 are connected to the bed frame 1, and the same mattress 10 is placed on the upper lying plate 3 and the lower lying plate 4.

[0031] The shaking assembly includes a first driving device 8 installed on the bottom plate 6 and a plurality of curved rods 9 rotatably connected to the bottom plate 6. The plurality of curved rods 9 are arranged in a rectangular array on the bottom plate 6. The bottom ends of the plurality of curved rods 9 are all connected to the output end of the first driving device 8, and the top ends are rotatably connected to the same fixed frame 16. The top of the fixed frame 16 is fixedly connected to the bed frame 1. The first driving device 8 is used to drive the fixed frame 16 to shake through the plurality of curved rods 9.

[0032] A second driving device 11 and a third driving device 13 are installed at the bottom of the bed frame 1. The output end of the second driving device 11 is connected to an upper pushing frame 12, and the top of the upper pushing frame 12 is fixedly connected to the upper lying plate 3. The second driving device 11 is used to adjust the angle of the upper lying plate 3 through the upper pushing frame 12. The output end of the third driving device 13 is connected to a lower pushing frame 14, and the top of the lower pushing frame 14 is fixedly connected to the lower lying plate 4. The third driving device 13 adjusts the angle of the lower lying plate 4 through the lower pushing frame 14.

[0033] The first driving device 8, the second driving device 11, and the third driving device 13 all adopt the prior art. When the first driving device 8 works, it pulls the bottom ends of the plurality of curved rods 9 to move synchronously. The middle parts of the curved rods 9 are rotatably connected to the bottom plate 6. When the plurality of curved rods 9 move, their top ends move accordingly, driving the fixed frame 16 to perform a reciprocating arc movement, thereby reciprocatingly shaking the pediatric patients on the bed frame 1 and the mattress 10 to soothe the emotions of the pediatric patients.

[0034] When the second driving device 11 and the third driving device 13 work, they push the upper push frame 12 and the lower push frame 14, thereby driving the upper lying board 3 and the lower lying board 4 to rotate. The upper lying board 3 drives the upper body of the patient to lift, and the lower lying board 4 drives the lower body of the patient to lift, enabling the patient to maintain a comfortable posture.

[0035] Refer to Figure 6 and Figure 7 a traction mechanism, which includes a fixing component and a traction component. The fixing component includes a side plate 17 placed on the mattress 10. A bandage 18 and two connecting cables 19 are connected to the side plate 17. One end of the connecting cable 19 away from the side plate 17 is fixedly connected to a spring 20. The two springs 20 are fixedly connected to the same footrest 22 at the ends away from the connecting cables 19. The footrest 22 is placed on the mattress 10 and has a through groove at the bottom for the calcaneus of the patient's foot to protrude. The traction component is connected to the bed frame 1 and its working end penetrates through the calcaneus and is used to traction the calcaneus.

[0036] Two placement frames are fixedly connected to the side of the side plate 17. The bandage 18 is fixedly connected to the placement frame. Both of the two bandages 18 are fixed to the thighs of the child. Electric reelers are installed on both sides of the placement frame close to the knees. One end of the two connecting cables 19 away from the spring 20 is wound around the output ends of the two electric reelers in one-to-one correspondence.

[0037] One bandage 18 is tied to the root of the child's thigh, and the other bandage 18 is tied to the child's thigh near the knee, completing the fixation of the child's legs and reducing the harm caused by leg movement during their care.

[0038] The electric reeler adopts the existing technology to wind up the connecting cable 19, which is convenient for adjusting the distance between the bandage 18 and the footrest 22 and is convenient for adapting to legs of different lengths.

[0039] The footrest 22 is L-shaped and is fitted to the child's foot. A fixing strap 21 is fixedly connected to the footrest 22 and is fixed to the top of the child's foot.

[0040] The child's foot is fixed to the footrest 22 through the fixing strap 21, effectively avoiding the left and right twisting of the child's foot and the rotation around the ankle, and further improving the fixation effect on the child's legs.

[0041] A sliding rod 5 is fixedly connected to the bed frame 1. The traction assembly includes an insertion device 23 inserted through the calcaneus and an adjustment device 27 slidably and lockably connected to the sliding rod 5. One end of the insertion device 23 away from the calcaneus is fixedly connected to a traction rope. The top of the adjustment device 27 is connected to an adjustable pulley 28, and the side is fixedly connected to a fixed cylinder 25. One end of the traction rope away from the insertion device 23 bypasses the top of the pulley 28 and extends into the interior of the fixed cylinder 25, and is fixedly connected to a metal block 24. An electromagnetic adsorption device 26 is installed at the bottom end of the fixed cylinder 25. The metal block 24 is in clearance fit with the interior of the fixed cylinder 25 and is magnetically matched with the electromagnetic adsorption device 26.

[0042] The insertion device 23 adopts the existing technology. When the calcaneus of the child's foot is exposed, the doctor performs an insertion operation on the calcaneus, and finally inserts the working end of the insertion device 23 into the calcaneus to form a fixation on the calcaneus, which is convenient for subsequent traction of the calcaneus.

[0043] The electromagnetic adsorption device 26 adopts the existing electromagnet structure. By controlling the current intensity, the magnetic attraction effect on the metal block 24 is adjusted. On the one hand, a magnetic locking effect is formed on the metal block 24 to prevent the metal block 24 from swinging and improve its relative stability when moving with the bed frame 1. On the other hand, the traction force on the calcaneus can be adjusted in real time, which is convenient for the doctor to control the traction treatment.

[0044] A support frame is fixedly connected to the top of the adjustment device 27. An adjustment knob 15 is rotatably installed on the support frame. The output end of the adjustment knob 15 is fixedly connected to a support rod. The bottom end of the support rod is rotatably connected to the support frame, and the top end is rotatably connected to the pulley 28. When the adjustment knob 15 rotates, the angle of the support rod is adjusted.

[0045] Both the adjustment device 27 and the adjustment knob 15 adopt the existing technology. When it is necessary to change the position of the adjustment device 27, first control its working end to disengage from the sliding rod 5 to release the lock between the two, which is convenient for sliding. After adjusting the position, its working end abuts against or inserts into the sliding rod 5 to form a locking effect, completing the position adjustment.

[0046] A tension sensor is installed between the metal block 24 and the traction rope. Both the tension sensor and the electromagnetic adsorption device 26 are electrically connected to a controller. The controller is installed on the bed frame 1. The controller receives the signal of the tension sensor and controls the working state of the electromagnetic adsorption device 26.

[0047] The tension sensor adopts the existing technology and is used to detect the tension between the metal block 24 and the traction rope. The controller receives its signal and controls the working state of the electromagnetic adsorption device 26, which is convenient for adjusting the traction force of the traction assembly in real time.

[0048] A bracket is fixedly connected to the top end of the fixed cylinder 25. A guide wheel is rotatably connected to the bracket. The traction rope bypasses the top of the guide wheel and coaxially extends into the interior of the fixed cylinder 25.

[0049] The traction rope is coaxially extended into the interior of the fixed cylinder 25 through the guide wheel, effectively preventing the metal block 24 from contacting the inner wall of the fixed cylinder 25 and improving the stability of the metal block 24 during operation.

[0050] When the present invention is in use, let the pediatric patient lie on the mattress 10. Starting the second driving device 11 can adjust the inclination angle of the upper lying board 3 through the upper pushing frame 12, so that the upper body of the patient is in a comfortable state. Starting the third driving device 13 can adjust the angle of the lower lying board 4 through the lower pushing frame 14, so that the lower body of the patient is in a comfortable state, which is convenient for medical staff to operate and makes the patient feel more comfortable.

[0051] After the patient lies down, since the patient is young, in order to prevent the patient from moving randomly during the treatment and causing accidents, one leg of the patient to be treated is placed in the bandage 18, so that the side of the thigh is attached to the side plate 17, and the patient's foot is attached to the footrest 22. The bottom of the footrest 22 is exposed, and the patient's calcaneus can be exposed, which is convenient for medical staff to perform subsequent operations. The instep is fixed with the fixing belt 21, and the patient's foot is fixed to prevent random movement during the operation and cause accidents. At the same time, the footrest 22 is used to prevent the patient from unconsciously moving the sole of the foot during the traction treatment, avoiding the reduction of the treatment effect caused by the direction of the traction force being different from the direction of the fracture line, and effectively avoiding the pain brought to the patient by the movement of the sole of the foot.

[0052] After being fixed, the calcaneus of the foot is disinfected and anesthetized. The doctor penetrates the working end of the insertion device 23 through the calcaneus, slides the adjusting device 27 on the sliding rod 5 to the corresponding position of the sole of the foot, and keeps it on the same straight line. Connect the insertion device 23 and the metal block 24 with a traction rope, and bypass the middle of the traction rope around the fixed pulley 28 and the top of the guide wheel, and then put it into the fixed cylinder 25. There is a certain gap between the metal block 24 and the inner wall of the fixed cylinder 25 to avoid errors in the applied weight caused by friction.

[0053] An electromagnetic adsorption device 26 is arranged at the bottom of the fixed cylinder 25. By changing the magnitude of the current, the magnetic attraction force on the metal block 24 can be accurately controlled, so as to accurately control the pulling force received by the patient's calcaneus. And because the bottom of the metal block 24 is magnetically attracted, it is more stable in the fixed cylinder 25, reducing the shaking and making the patient feel more comfortable.

[0054] A connecting cable 19 is connected to the placement frame of the side panel 17 near the knee, and the connecting cable 19 is fixed to the foot rest 22 by a spring 20. The spring 20 can absorb the instantaneous tension fluctuation caused by the patient's position change or muscle contraction during traction, and avoid soft tissue tearing or secondary injury to the fracture end caused by the sudden increase of traction force; the elastic deformation of the spring 20 can compensate for the slight length change of the connecting cable 19 caused by limb movement, ensuring that the traction force is continuous and uniform, avoiding the problem of intermittent traction force caused by limb movement in traditional rigid traction devices, and improving the stability and continuity of traction.

[0055] Since the patient is young and needs to lie in bed for a long time during calcaneal traction treatment, the first drive device 8 can be started, and its output end drives the curved rod 9 to move, and the fixed frame 16 is used to drive the bed frame 1 to rock slightly back and forth to soothe the patient's emotions.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A traction device for pediatric orthopedic care with multi-dimensional adjustment, including a bottom plate (6), characterized in that, It further includes: a shaking component connected to the bottom plate (6); a bed frame (1) connected to the output end of the shaking component, on which a rotatable upper lying board (3) and a lower lying board (4) are connected, and the same mattress (10) is placed on the upper lying board (3) and the lower lying board (4); a traction mechanism including a fixing component and a traction component. The fixing component includes side plates (17) placed on the mattress (10), on which bandages (18) and two connecting cables (19) are connected. One end of each connecting cable (19) far from the side plate (17) is fixedly connected to a spring (20). One end of the two springs (20) far from the connecting cables (19) is fixedly connected to the same footrest (22). The footrest (22) is placed on the mattress (10), and a through groove for the calcaneus of the patient's foot to expose is formed at the bottom. The traction component is connected to the bed frame (1), and its working end penetrates through the calcaneus and is used for traction of the calcaneus.

2. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, A moving device (7) is installed at the bottom of the bottom plate (6), and side guards (2) are rotatably connected to both sides of the bed frame (1) in a lockable manner.

3. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, The shaking component includes a first driving device (8) installed on the bottom plate (6) and a plurality of arc-shaped rods (9) rotatably connected to the bottom plate (6). The plurality of arc-shaped rods (9) are distributed in a rectangular array on the bottom plate (6). The bottom ends of the plurality of arc-shaped rods (9) are all connected to the output end of the first driving device (8), and the top ends are rotatably connected to the same fixed frame (16). The top of the fixed frame (16) is fixedly connected to the bed frame (1). The first driving device (8) is used to drive the fixed frame (16) to shake through the plurality of arc-shaped rods (9).

4. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, A second driving device (11) and a third driving device (13) are installed at the bottom of the bed frame (1). The output end of the second driving device (11) is connected to an upper pushing frame (12), and the top of the upper pushing frame (12) is fixedly connected to the upper lying board (3). The second driving device (11) is used to adjust the angle of the upper lying board (3) through the upper pushing frame (12). The output end of the third driving device (13) is connected to a lower pushing frame (14), and the top of the lower pushing frame (14) is fixedly connected to the lower lying board (4). The third driving device (13) adjusts the angle of the lower lying board (4) through the lower pushing frame (14).

5. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, Two placing frames are fixedly connected to the side surface of the side plate (17), and the bandage (18) is fixedly connected to the placing frames. The two bandages (18) are both fixed at the thighs of the child. Electric retractors are installed on both sides of the placing frame near the knee. One end of each of the two connecting cables (19) far from the spring (20) is wound around the output ends of the two electric retractors in a one-to-one correspondence.

6. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, The footrest (22) is L-shaped and is fitted with the child's foot in a clamping manner. A fixing strap (21) is fixedly connected to the footrest (22), and the fixing strap (21) is fixed on the instep of the child's foot.

7. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 1, characterized in that, A sliding rod (5) is fixedly connected to the bed frame (1). The traction assembly includes an insertion device (23) inserted through the calcaneus and an adjustment device (27) slidably and lockably connected to the sliding rod (5). One end of the insertion device (23) away from the calcaneus is fixedly connected to a traction rope. The top of the adjustment device (27) is connected to an adjustable pulley (28), and the side is fixedly connected to a fixed cylinder (25). One end of the traction rope away from the insertion device (23) bypasses the top of the pulley (28) and extends into the interior of the fixed cylinder (25), and is fixedly connected to a metal block (24). An electromagnetic adsorption device (26) is installed at the bottom end of the fixed cylinder (25). The metal block (24) is in clearance fit with the interior of the fixed cylinder (25) and is magnetically matched with the electromagnetic adsorption device (26).

8. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 7, characterized in that, A support frame is fixedly connected to the top of the adjustment device (27). An adjustment knob (15) is rotatably installed on the support frame. The output end of the adjustment knob (15) is fixedly connected to a support rod. The bottom end of the support rod is rotatably connected to the support frame, and the top end is rotatably connected to the pulley (28). When the adjustment knob (15) rotates, the angle of the support rod is adjusted.

9. The pediatric orthopedic care traction device with multi-dimensional adjustment according to claim 7, characterized in that, A tension sensor is installed between the metal block (24) and the traction rope. Both the tension sensor and the electromagnetic adsorption device (26) are electrically connected to a controller. The controller is installed on the bed frame (1). The controller receives the signal of the tension sensor and controls the working state of the electromagnetic adsorption device (26).

10. The traction device for pediatric orthopedic care with multi-dimensional adjustment according to claim 9, characterized in that, A bracket is fixedly connected to the top end of the fixed cylinder (25). A guide wheel is rotatably connected to the bracket. The traction rope bypasses the top of the guide wheel and coaxially extends into the interior of the fixed cylinder (25).

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