Auxiliary traction device for orthopedics department

By introducing an adjustable counterweight mechanism and support frame in the orthopedic traction device, combining breathable cushion and temperature adjustment functions, the problems of insufficient counterweight accuracy and flexibility in the prior art are solved, and the comfort of the device is significantly improved and adaptability.

CN222357681UInactive Publication Date: 2025-01-17YUXI TRADITIONAL CHINESE MEDICINE HOSPITAL
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Patent Information

Application Number
CN202322515094.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-09-15
Publication Date
2025-01-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The current orthopedic traction devices have poor counterweight accuracy, which leads to increased discomfort in patients and insufficient flexibility in the device, which cannot adapt to the needs of different leg structures.

Method used

An orthopedic auxiliary traction device including an adjustable counterweight mechanism and a support frame is designed, using wire wheels and liquid injection tanks to achieve precise counterweights, and improves the flexibility and comfort of the device through an adjustable support frame and breathable pads. , has air supply and heating functions to adapt to the patient's leg temperature.

Benefits of technology

Accurate adjustment of counterweight is achieved, the adaptability and comfort of the device is improved, breathable and temperature adjustment are ensured, and the patient's discomfort is reduced.

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Abstract

The utility model is applicable to the technical field of medical instruments, and provides an orthopedic auxiliary traction device which comprises a counterweight mechanism arranged on a supporting frame and capable of adjusting counterweight, and the counterweight mechanism comprises a slidable counterweight pull wire arranged on the supporting frame through a wire guide wheel; the placing rod is arranged at the tail end of the counterweight stay wire and is used for placing the counterweight block; the liquid injection tank is fixedly mounted at the bottom end of the placing rod and is used for bearing a balancing weight; and the liquid supply mechanism is arranged on the supporting frame and is used for supplying liquid to the liquid injection tank. The auxiliary traction device for the orthopedics department, provided by the scheme, has the counterweight traction function, and is particularly suitable for the situation that a patient feels uncomfortable due to inaccurate counterweight in counterweight.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an orthopedic auxiliary traction device. Background Art

[0002] Skin traction is one of the common specialized operations in orthopedics, and is mainly suitable for elderly patients with femoral neck fractures, intertrochanteric fractures, and femoral shaft fractures.

[0003] During traction, the legs are tied with wrapped D / C / D cloth, and then a few kilograms of weight is hung on the rope for traction. However, since the current weight-balancing method mostly uses weights, the accuracy of weight-balancing is poor. Light weights are not easy to achieve the purpose of weight-balancing, while heavy weights are likely to increase the patient's discomfort. Summary of the invention

[0004] The utility model provides an orthopedic auxiliary traction device, aiming to solve the problem that the current weight distribution accuracy is poor and it is easy to cause discomfort to patients.

[0005] The utility model is implemented as follows: an orthopedic auxiliary traction device comprises: a counterweight mechanism with adjustable counterweight arranged on a support frame, the counterweight mechanism comprises: a counterweight pull line slidable on the support frame by a guide wheel; a placement rod for placing a counterweight block arranged at the tail end of the counterweight pull line; a liquid injection tank fixedly installed at the bottom end of the placement rod for receiving the counterweight block; and a liquid supply mechanism arranged on the support frame for supplying liquid to the liquid injection tank.

[0006] Preferably, the support frame includes a bottom frame, and two columns and two slides are correspondingly installed on the top of the bottom frame, and the two columns are hinged with connecting columns, and the two connecting columns are hinged with the same assembly frame for installing leg bandages, and the two slides can be slidably provided with transverse sliding sleeves, and the same door frame is fixedly installed on the two transverse sliding sleeves, and the door frame is hinged with a movable plate fixedly connected to the assembly frame.

[0007] Preferably, a lifting sleeve is slidably mounted on the gantry, a wheel frame 1 is fixedly mounted on one side of the lifting sleeve, a wheel frame 2 fixedly connected to the gantry is provided below the wheel frame 1, and both the wheel frame 1 and the wheel frame 2 are used for mounting the guide wheel.

[0008] Preferably, a step plate for installing a liquid supply mechanism is fixedly installed on the door frame, and the liquid supply mechanism includes a liquid storage tank and a liquid pump fixedly installed on the step plate, the liquid inlet pipe of the liquid pump is fixedly connected to the liquid storage tank, and the liquid discharge pipe of the liquid pump is fixedly connected to the liquid injection tank.

[0009] Preferably, an adjustable calf support mechanism is provided in the assembly frame, and the calf support mechanism includes a support ear fixedly mounted on the assembly frame, a support plate is hinged on the support ear, a leg rest board with an adjustable angle located in the assembly frame is fixedly mounted on the support plate, and a movable breathable cushion is provided on the upper surface of the leg rest board.

[0010] Preferably, the bottom of the breathable cushion is hardened, the upper surface of the leg rest plate is provided with a guide groove, a guide rod is fixedly installed in the guide groove, a guide sleeve fixedly connected to the breathable cushion is slidably provided on the guide rod, and a binding bandage for binding the legs is provided on the breathable cushion.

[0011] Preferably, a screw rack is fixedly mounted on the assembly frame, an adjusting screw is threadedly mounted on the screw rack, a ball head is fixedly mounted on the top end of the adjusting screw, and a ball sleeve fixedly connected to the leg plate is movably mounted on the ball head.

[0012] Preferably, an air cavity is provided on the leg rest board, and a breathable net in contact with the bottom of the breathable cushion is fixedly embedded on the top inner wall of the air cavity, and an air supply box is provided on the bottom frame. The air supply box is connected to the air cavity by an air duct, and a fan is provided on either side of the air supply box.

[0013] Preferably, the middle portion of the air supply box is a retracted neck structure, and has a built-in resistance heating coil for heating the air.

[0014] Preferably, the bottom frame is in a "U"-shaped structure, and the assembly frame and the door frame are both in a "U"-shaped structure.

[0015] Compared with the related art, the drug crushing device provided by the present invention has the following beneficial effects:

[0016] Compared with the prior art, the orthopedic auxiliary traction device provided by the present invention can not only adjust the counterweight more accurately, but the adjustable support frame can be more flexible and adaptable when used by patients with different leg structures. The angle-adjustable leg rest board is used in conjunction with the support frame, which further improves the adaptability of use. At the same time, the leg rest board is also provided with a sliding breathable cushion, which can slide according to the patient's adjustment while ensuring breathability and comfort. The device is flexible to use and can supply air. During use, it can adaptively adjust whether ventilation or heating is needed according to the patient's leg temperature, and is comfortable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of an orthopedic auxiliary traction device provided by the present invention;

[0018] Figure 2This is a schematic diagram of the main cross-sectional structure of an orthopedic auxiliary traction device provided by the present invention;

[0019] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0020] Figure 4 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG.

[0021] Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part C shown in FIG.

[0022] Figure 6 for Figure 2 An enlarged structural diagram of part D shown in FIG.

[0023] Figure 7 for Figure 2 An enlarged structural diagram of part E shown in FIG.

[0024] Figure 8 Schematic diagram of the structure of the support frame in this practical application.

[0025] Reference numerals: 1, bottom frame; 2, upright column; 3, connecting column; 4, assembly frame; 5, slide frame; 6, lateral sliding sleeve; 7, door frame; 8, movable plate; 9, leg bandage; 10, lifting sliding sleeve; 11, wheel frame 1; 12, wheel frame 2; 13, guide wheel; 14, counterweight pull line; 15, placement rod; 16, counterweight block; 17, liquid injection tank; 18, step plate; 19, liquid storage tank; 20, liquid pump; 21, liquid inlet pipe; 22. Drain pipe; 23. Support ear; 24. Support plate; 25. Leg board; 26. Breathable cushion; 27. Guide groove; 28. Guide rod; 29. ​​Guide sleeve; 30. Binding bandage; 31. Screw rack; 32. Adjusting screw; 33. Ball head; 34. Ball sleeve; 35. Air cavity; 36. Breathable net; 37. Air supply box; 38. Air duct; 39. Fan; 40. Resistance heating coil; 41. Body temperature sensor. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] This practical embodiment provides an orthopedic auxiliary traction device, such as Figure 1-8 As shown, the orthopedic auxiliary traction device includes: a counterweight mechanism with adjustable counterweight arranged on a support frame, the counterweight mechanism includes: a counterweight pull line 14 slidable on the support frame 1 using a wire pulley 13; a placement rod 15 arranged at the tail end of the counterweight pull line 14 for placing a counterweight block 16; a liquid injection tank 17 fixedly installed at the bottom end of the placement rod 15 for receiving the counterweight block 16; and a liquid supply mechanism arranged on the support frame for supplying liquid to the liquid injection tank 17, and the orthopedic auxiliary traction device is also provided with a body temperature sensor 41.

[0029] It should be noted that the four common types of traction in orthopedics are manual traction, skin traction, skeletal traction, and special traction, which mainly use continuous and appropriate traction to reduce and maintain fractures and dislocations, correct contracted and deformed limbs, and immobilize inflamed limbs.

[0030] 1. Manual traction: It is mostly used for manual reduction of fractures and joint dislocations. The operation time is short and the force can be increased as needed. Manual traction can be stopped only after the manual reduction is successful and external fixation is completed. In order to save physical strength and facilitate manual reduction and X-ray fluoroscopy, manual traction can be replaced by instrument traction during the operation;

[0031] 2. Skin traction: The traction force of skin traction is relatively small. It can be used for pediatric femoral fractures and unstable humeral fractures, or auxiliary traction of adult lower limb skeleton traction. The contraindications of skin traction are mainly those with skin damage or inflammation at the traction site and those who are allergic to adhesive tape.

[0032] 3. Skeletal traction: It is often used for limb fractures. During traction, restraint pins or Steinmann pins are passed through the bones and connected to the traction device. The force of skeletal traction is relatively large, and there must generally be corresponding counter-traction during traction. The traction time is relatively long, and it can effectively adjust the force, and the effect is relatively good;

[0033] 4. Special traction: mainly includes jaw-occipital traction, pelvic belt traction, pelvic sling traction, thoracolumbar sling traction, etc., which are respectively used for the correction of cervical dislocation, lumbar disc herniation, pelvic fracture with obvious separation and thoracolumbar vertebral compression fracture;

[0034] During skin traction, the legs are tied with a D / C / D-type cloth, and then a few kilograms of weight is hung on a rope for traction. However, since the current weight-balancing method mostly uses a weight, the accuracy of weight-balancing is poor. If it is too light, it is not easy to achieve the purpose of weight-balancing, and if it is too heavy, it is easy to increase the discomfort of the patient.

[0035] The main source of discomfort: We all think that after traction we just need to rest in bed, and it won't be very uncomfortable. But the fact is not at all. When the leg is placed on the prepared leather traction, wrapped, and a few kilograms of weight is hung on the rope, the strong pulling pain comes, and the whole leg cannot move. Lying flat on the bed is really not as good as we imagined. It is very uncomfortable. We can only stare at the ceiling. The leg that has been tied for a long time is not only painful but also feels very stiff and stuffy, until it becomes numb and cannot move.

[0036] In this embodiment, in order to improve the strong discomfort caused by the current traction, especially the inappropriate counterweight, the medical staff will place the support frame at the foot of the bed in a conventional manner, and then fix the counterweight pull line 14 on the traction belt of the patient's leg. At this time, the counterweight pull line 14 can slide freely on the wire wheel 13 to adapt to the displacement problem caused by the patient's movement. Then, the counterweight block 16 is placed on the placement rod 15. When the counterweight is close to the actual required counterweight, precise counterweighting is performed. During precise counterweighting, a liquid supply mechanism is used to inject a heavy metal solution (mercury solution) into the liquid injection tank 17, so that it slowly reaches the counterweight. When the counterweight is large, the heavy metal solution can be drawn out in the direction.

[0037] In a further preferred embodiment of the present utility model, the support frame includes a bottom frame 1, and two columns 2 and two slides 5 are correspondingly installed on the top of the bottom frame 1, and the two columns 2 are hinged with connecting columns 3, and the two connecting columns 3 are hinged with the same assembly frame 4 for installing the leg bandage 9, and the two slides 5 can be slidably provided with a transverse sliding sleeve 6, and the same door frame 7 is fixedly installed on the two transverse sliding sleeves 6, and the door frame 7 is hinged with a movable plate 8 fixedly connected to the assembly frame 4.

[0038] In this embodiment, during use, since the leg lengths, postures, etc. of patients are different, in order to better adapt to the patients, the bolts on the transverse sliding sleeve 6 can be loosened at this time, and then slide along the slide 5. At this time, the door frame 7 and the movable plate 8 are both driven by the transverse sliding sleeve 6. At the same time, the movable plate 8 is tilted to drive the assembly frame 4 to move, and the assembly frame 4 drives the connecting column 3 to deflect, so as to adjust the entire support frame, so that the patient can be placed more comfortably and at an appropriate angle, and the leg bandage 9 is used to place the legs more comfortably.

[0039] In a further preferred embodiment of the present invention, a lifting sleeve 10 is slidably mounted on the gantry 7, a wheel frame 11 is fixedly mounted on one side of the lifting sleeve 10, a wheel frame 2 12 fixedly connected to the gantry 7 is provided below the wheel frame 11, and both the wheel frame 11 and the wheel frame 2 12 are used to install a guide wheel 13.

[0040] In this embodiment, during use, due to the change of the supporting frame, the position of the wheel frame 11 needs to be changed. When adjusting the wheel frame 11, the bolts are loosened in the same way, and then the lifting sleeve 10 is slid, so that the counterweight pull line 14 on the guide wheel 13 is kept as horizontal as possible with the leg traction position to ensure smooth sliding.

[0041] In a further preferred embodiment of the present invention, a step plate 18 for installing a liquid supply mechanism is fixedly installed on the door frame 7, and the liquid supply mechanism includes a liquid storage tank 19 and a liquid pump 20 fixedly installed on the step plate 18, the liquid inlet pipe 21 of the liquid pump 20 is fixedly connected to the liquid storage tank 19, and the liquid discharge pipe 22 of the liquid pump 20 is fixedly connected to the liquid injection tank 17.

[0042] In this embodiment, the liquid supply mechanism starts the liquid pump 20 when it is in operation. At this time, the heavy metal solution in the liquid storage tank 19 is extracted through the liquid inlet pipe 21, and then discharged into the liquid injection tank 17 through the liquid discharge pipe 22, thereby achieving the purpose of counterweight. When the liquid pump 20 is started to pump back, the counterweight can be reduced, which is flexible and more accurate to use.

[0043] In a further preferred embodiment of the present invention, an adjustable calf support mechanism is provided in the assembly frame 4, and the calf support mechanism includes a support ear 23 fixedly mounted on the assembly frame 4, a support plate 24 is hinged on the support ear 23, and a leg rest plate 25 with an adjustable angle located in the assembly frame 4 is fixedly mounted on the support plate 24, and a movable breathable cushion 26 is provided on the upper surface of the leg rest plate 25.

[0044] In this embodiment, the patient's calves are placed on the breathable cushion 26 during use, which is relatively comfortable. In order to find a better leg-resting mechanism, the leg-resting plate 25 can be deflected to change its angle, thereby making the patient more comfortable. The breathable cushion 26 can ensure the ventilation effect, making the patient more comfortable and reducing the feeling of stuffiness. The body temperature sensor 41 is arranged in the breathable cushion 26, which can monitor the patient's leg temperature in real time to determine whether air supply and heat dissipation are needed.

[0045] In a further preferred embodiment of the present invention, the bottom of the breathable cushion 26 is hardened, a guide groove 27 is provided on the upper surface of the leg rest plate 25, a guide rod 28 is fixedly installed in the guide groove 27, a guide sleeve 29 fixedly connected to the breathable cushion 26 is slidably provided on the guide rod 28, and a binding bandage 30 for binding the legs is provided on the breathable cushion 26.

[0046] In this embodiment, the bottom of the breathable cushion 26 is hardened to ensure smooth sliding. The hardened cushion can add a mesh plate with holes at the bottom. In order to adapt to the movement of the patient's legs during use, the breathable cushion 26 can move with the patient's legs. When moving, the guide sleeve 29 slides along the guide rod 28 in the guide groove 27, which is more flexible to use.

[0047] In a further preferred embodiment of the present invention, a screw rack 31 is fixedly mounted on the assembly frame 4, an adjusting screw 32 is threadedly mounted on the screw rack 31, a ball head 33 is fixedly mounted on the top of the adjusting screw 32, and a ball sleeve 34 fixedly connected to the leg plate 25 is movably mounted on the ball head 33.

[0048] In this embodiment, when adjusting the pitch angle of the legrest board 25, the adjusting screw 32 is rotated so that the adjusting screw 32 drives the ball head 33 to rotate along the ball sleeve 34, synchronously pulling the ball sleeve 34 and the legrest board 25 to move, thereby achieving the adjustment of the pitch angle.

[0049] In a further preferred embodiment of the present invention, an air cavity 35 is provided on the leg rest board 25, and a breathable net 36 that is in contact with the bottom of the breathable cushion 26 is fixedly embedded on the top inner wall of the air cavity 35, and an air supply box 37 is provided on the bottom frame 1. The air supply box 37 is connected to the air cavity 35 by an air duct 38, and a fan 39 is provided on either side of the air supply box 37.

[0050] In this embodiment, when the body temperature sensor 41 detects that the temperature of the patient's legs is high, the fan 39 needs to be started to improve the patient's comfort. The fan 39 draws external air into the air supply box 37, and then discharges it into the air cavity 35 through the air duct 38, and finally discharges it to the breathable cushion 26 through the breathable net 36, so as to blow air to the patient's legs and improve comfort.

[0051] In a further preferred embodiment of the present invention, the middle portion of the air supply box 37 is a retracted neck structure, and has a built-in resistance heating coil 40 for heating the air.

[0052] In this embodiment, in winter, since the patient's legs are uncomfortable to cover with a quilt and are prone to air leakage, the body temperature sensor 41 detects that the patient's leg temperature is low and controls the start of the resistance heating coil 40 to heat the incoming air, thereby heating the patient's legs.

[0053] In a further preferred embodiment of the present invention, the bottom frame 1 is in a "U"-shaped structure, and the assembly frame 4 and the door frame 7 are both in a "U"-shaped structure.

[0054] In this embodiment, the bottom frame 1, the assembly frame 4 and the door frame 7 of special structures are adapted to the use of the device.

[0055] In summary, the device can achieve weight distribution more accurately, making the patient more comfortable and flexible to use.

[0056] Compared with the related art, the present device can not only adjust the counterweight more accurately, but also the adjustable support frame can be more flexible and adaptable when used by patients with different leg structures. The leg rest board 25 with adjustable angle is used in conjunction with the support frame, which further improves the adaptability of use. At the same time, the leg rest board 25 is also provided with a sliding breathable cushion 26, which can slide according to the patient's adjustment while ensuring breathability and comfort. The present device is flexible to use and can supply air. During use, it can adaptively adjust whether ventilation or heating is needed according to the patient's leg temperature, and is comfortable to use.

[0057] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict and without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An orthopedic auxiliary traction device, characterized in that: include: A counterweight mechanism with adjustable counterweight is provided on the support frame, and the counterweight mechanism comprises: A guide wheel is used to set a slidable counterweight pull line on the support frame; A placement rod provided at the tail end of the counterweight cable for placing the counterweight block; A liquid injection tank fixedly mounted at the bottom end of the placement rod for receiving the counterweight; and A liquid supply mechanism is arranged on the support frame and is used to supply liquid to the liquid injection tank.

2. The orthopedic auxiliary traction device according to claim 1, characterized in that: The support frame includes a bottom frame, and two columns and two slides are correspondingly installed on the top of the bottom frame. The two columns are hinged with connecting columns, and the two connecting columns are hinged with the same assembly frame for installing leg bandages. Both slides are slidably provided with transverse sliding sleeves, and the same door frame is fixedly installed on the two transverse sliding sleeves, and the door frame is hinged with a movable plate fixedly connected to the assembly frame.

3. The orthopedic auxiliary traction device according to claim 2, characterized in that: A lifting sleeve is slidably mounted on the portal frame, a wheel frame 1 is fixedly mounted on one side of the lifting sleeve, a wheel frame 2 fixedly connected to the portal frame is provided below the wheel frame 1, and both the wheel frame 1 and the wheel frame 2 are used for mounting a guide wheel.

4. The orthopedic auxiliary traction device according to claim 2, characterized in that: A step plate for installing a liquid supply mechanism is fixedly installed on the door frame. The liquid supply mechanism includes a liquid storage tank and a liquid pump fixedly installed on the step plate. The liquid inlet pipe of the liquid pump is fixedly connected to the liquid storage tank, and the liquid discharge pipe of the liquid pump is fixedly connected to the liquid injection tank.

5. The orthopedic auxiliary traction device according to claim 2, characterized in that: An adjustable calf support mechanism is provided in the assembly frame, and the calf support mechanism includes a support ear fixedly mounted on the assembly frame, a support plate is hinged on the support ear, a leg rest board with an adjustable angle located in the assembly frame is fixedly mounted on the support plate, and a movable breathable cushion is provided on the upper surface of the leg rest board.

6. The orthopedic auxiliary traction device according to claim 5, characterized in that: The bottom of the breathable cushion is hardened, the upper surface of the leg rest plate is provided with a guide groove, a guide rod is fixedly installed in the guide groove, a guide sleeve fixedly connected to the breathable cushion is slidably sleeved on the guide rod, and a binding bandage for leggings is provided on the breathable cushion.

7. The orthopedic auxiliary traction device according to claim 5, characterized in that: A screw rack is fixedly mounted on the assembly frame, an adjusting screw is threadedly mounted on the screw rack, a ball head is fixedly mounted on the top end of the adjusting screw, and a ball sleeve fixedly connected to the leg-releasing plate is movably mounted on the ball head.

8. The orthopedic auxiliary traction device according to claim 5, characterized in that: An air cavity is provided on the leg rest board, and a breathable net in contact with the bottom of the breathable cushion is fixedly embedded on the top inner wall of the air cavity. An air supply box is provided on the bottom frame, and the air supply box is connected to the air cavity through an air duct. A fan is provided on either side of the air supply box.

9. The orthopedic auxiliary traction device according to claim 8, characterized in that: The middle part of the air supply box is a retracted neck structure, and a resistance heating coil for heating air is built in.

10. The orthopedic auxiliary traction device according to claim 2, characterized in that: The bottom frame is in a "U"-shaped structure, and the assembly frame and the door frame are both in a "U"-shaped structure.

Citation Information

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