A stable tension orthopedic auxiliary traction device

Abstract

The application belongs to the technical field of orthopedic traction equipment, and particularly relates to an auxiliary orthopedic traction device with stable tension, which comprises a base, two traction mechanisms arranged on the base, clamping assemblies arranged on the traction mechanisms, pressure mechanisms arranged below the clamping assemblies, and a bottom plate fixed to the base and provided with an arc-shaped groove. The pressure mechanisms and pressure regulating assemblies are arranged, liquid medium enters the arc-shaped shell through the L-shaped pipe and acts on the piston, the fixed ring is driven to drive the traction rope to realize continuous traction on the bone nail, the communication area between the pressure relief hole and the arc-shaped shell is adjusted by controlling the position of the movable cover through the telescopic rod, the thrust of the liquid on the fixed ring in the piston is controlled, the traction tension is adjusted, the liquid keeps circulating in the pipeline, the pressure on the piston end surface is dynamically stable, the traction force is prevented from suddenly changing due to pressure fluctuation, and the force on the bone nail is ensured to be stable.

Description

Technical Field

[0001] This invention belongs to the field of orthopedic traction equipment technology, and in particular relates to an orthopedic auxiliary traction device with stable tension. Background Technology

[0002] In orthopedic clinical treatment, traction technology is an important means of fracture reduction, joint dislocation correction, and preoperative and postoperative auxiliary fixation. The traction device maintains the alignment of the bone on the predetermined axis by continuously applying force to the bone nail or skin, so as to promote healing or correct deformity. It has a simple structure and low cost, and is therefore widely used in primary medical institutions.

[0003] In practical applications, existing devices mostly provide traction force through tension springs. However, as the gap between bones increases, the tension of the springs decreases continuously, and the traction force decreases accordingly. The entire traction process requires the traction force to remain constant. Fluctuations in the magnitude of the traction force make it difficult to achieve a good traction effect, and it is difficult to flexibly adjust the traction force according to the patient's specific treatment needs. Doctors cannot accurately control the traction force. Summary of the Invention

[0004] The purpose of this invention is to address the problems mentioned in the background section by providing a tensile-stable orthopedic traction device.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A tension-stabilized orthopedic auxiliary traction device includes a base, two traction mechanisms on the base, clamping components on the traction mechanisms, and a pressure mechanism below the clamping components.

[0007] The traction mechanism includes a base plate fixed to the base, the base plate having an arc-shaped groove, a movable component being provided in the arc-shaped groove, a support frame fixed to the base plate, a slot being provided on the outer surface of the support frame, two leg guard base frames being provided above the support frame, multiple pressing blocks being arrayed and embedded at the upper ends of the two leg guard base frames, a connecting rod being provided between the two leg guard base frames, and the two leg guard base frames being fixedly connected by the connecting rod.

[0008] Preferably, a pulley assembly is slidably connected within the slot, and the pulley assembly is fixed to the slot with bolts.

[0009] Preferably, the movable component includes a sealed housing fixed in an arc-shaped groove, a movable plate slidably connected inside the sealed housing, a plurality of large holes arrayed on the outer surface of the movable plate, a plurality of baffles arrayed elastically connected on the movable plate, a plurality of small holes arrayed on the outer surface of the movable plate, an elastic element fixed between the movable plate and the inner wall of the sealed housing, and a connecting plate fixed at the end of the movable plate away from the elastic element.

[0010] Preferably, the large hole and the baffle are coaxially arranged, and the sealed housing is filled with damping oil.

[0011] Preferably, the clamping assembly includes a support plate rotatably connected to the base plate, a rectangular shell rotatably connected to the upper end of the support plate, two clamping plates symmetrically rotatably connected inside the rectangular shell, two telescopic members between the two clamping plates, and a trigger plate above the two telescopic members.

[0012] Preferably, one end of each of the two telescopic members is rotatably connected to the trigger plate, and the other end of each of the two telescopic members is rotatably connected to the two clamping plates respectively.

[0013] Preferably, a sealing ring is provided at the connection between the connecting plate and the sealing shell, the connecting plate is fixedly connected to the support plate located on the same side, and the leg guard base is fixedly connected to the rectangular shell.

[0014] Preferably, the pressure mechanism includes an arc-shaped housing fixed to a support frame, an L-shaped tube fixedly connected to the arc-shaped housing, a pressure regulating component inside the L-shaped tube, a connecting ring fixedly connected to the outer surface of the arc-shaped housing, a pressure relief pipe fixedly connected to the connecting ring, a piston fixedly fixed to the arc-shaped housing, and a fixing ring fixed to the telescopic end of the piston.

[0015] Preferably, the arc-shaped housing is connected to the output end of an external pumping device, and the pressure relief pipe is fixedly connected to an external housing.

[0016] Preferably, the pressure regulating component includes a fixed tube fixed inside the arc-shaped housing, the outer surface of the fixed tube having an array of multiple pressure relief holes, the outer surface of the fixed tube being fitted with a movable cover, and a telescopic rod being fixed between the movable cover and the inner wall of the arc-shaped housing.

[0017] Compared with existing technologies, the advantages of this tension-stabilized orthopedic auxiliary traction device are:

[0018] 1. This invention, by setting up a pressure mechanism and a pressure regulating component, allows the liquid medium to enter the arc-shaped shell through an L-shaped pipe and act on the piston component, driving the fixing ring to move the traction rope to achieve continuous traction on the bone screw. Furthermore, the position of the movable cover is controlled by the telescopic rod to adjust the communication area between the pressure relief hole and the arc-shaped shell, thereby controlling the thrust generated by the liquid on the fixing ring within the piston component and achieving adjustment of the traction force. The liquid maintains a circulating flow state within the pipe, making the pressure on the piston end face dynamically stable, avoiding sudden changes in traction force caused by pressure fluctuations, and ensuring stable force on the bone screw.

[0019] 2. By setting up an active component, the present invention allows patients to perform active rehabilitation training without removing the device during the intervals of traction therapy. When the patient performs the leg adduction and clamping action, the damping oil flows through the small hole, generating a throttling pressure difference and forming training resistance. When the patient relaxes, the damping oil can flow through both the large and small holes simultaneously, and the resistance drops sharply. The difference in the diameter of the large and small holes and the stiffness of the elastic element together determine the asymmetry between the training resistance and the repositioning assistance, which ensures effective exercise while reducing the physical exertion of repositioning.

[0020] 3. This invention, by setting up a clamping assembly, allows the patient's leg to be placed on the leg support frame. The thigh naturally presses down on the trigger plate, and the trigger plate drives the two clamping plates to move closer to each other through the linkage of the telescopic component until they are tightly fitted to the patient's thigh. The downward movement of the trigger plate directly determines the displacement distance of the clamping plates. The clamping force automatically adapts to the leg circumference without manual adjustment. The pressure on the inner side of the clamping plates is evenly distributed, avoiding single-point pressure. This ensures reliable fixation while improving patient comfort. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a tension-stabilized orthopedic auxiliary traction device provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the overall internal structure of a tension-stabilized orthopedic auxiliary traction device provided by the present invention;

[0023] Figure 3 This is a schematic diagram of the traction mechanism structure of an orthopedic auxiliary traction device with tension stabilization provided by the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the movable component of a tension-stabilized orthopedic auxiliary traction device provided by the present invention;

[0025] Figure 5 This invention provides Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0026] Figure 6 This is a schematic diagram of the internal structure of the clamping assembly of a tension-stabilized orthopedic auxiliary traction device provided by the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the pressure mechanism of an orthopedic auxiliary traction device with stabilizing tension provided by the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of the pressure regulating component of a tension-stabilized orthopedic auxiliary traction device provided by the present invention.

[0029] In the diagram: 1. Base; 2. Traction mechanism; 3. Clamping assembly; 4. Pressure mechanism; 21. Base plate; 22. Movable assembly; 23. Support frame; 24. Slot; 25. Leg guard base frame; 26. Lower pressure block; 27. Connecting rod; 221. Sealing shell; 222. Movable plate; 223. Large hole; 224. Baffle; 225. Small hole; 226. Elastic element; 227. Connecting plate; 31. Support plate; 32. Rectangular shell; 33. Clamping plate; 34. Telescopic element; 35. Trigger plate; 41. Arc-shaped shell; 42. L-shaped tube; 43. Pressure regulating assembly; 44. Connecting ring; 45. Pressure relief pipe; 46. Piston; 47. Fixed ring; 431. Fixed pipe; 432. Pressure relief hole; 433. Movable cover; 434. Telescopic rod. Detailed Implementation

[0030] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] Example: Refer to Figures 1 to 8 A tension-stabilized orthopedic auxiliary traction device includes a base 1, two traction mechanisms 2 on the base 1, a clamping assembly 3 on the traction mechanism 2, and a pressure mechanism 4 below the clamping assembly 3.

[0032] To further explain, such as Figure 3 As shown, the traction mechanism 2 includes a base plate 21 fixed on the base 1. The base plate 21 has an arc-shaped groove, and a movable component 22 is provided in the arc-shaped groove. A support frame 23 is fixed on the base plate 21. A slot 24 is provided on the outer surface of the support frame 23. A pulley group is slidably connected in the slot 24. The pulley group is fixed in the slot 24 with bolts. Two leg guard base frames 25 are provided above the support frame 23. Multiple pressing blocks 26 are embedded in the upper end of the two leg guard base frames 25. A connecting rod 27 is provided between the two leg guard base frames 25. The two leg guard base frames 25 are fixedly connected by the connecting rod 27.

[0033] To elaborate further, such as Figure 4 and Figure 5 As shown, the movable component 22 includes a sealing housing 221 fixed in an arc-shaped groove. A movable plate 222 is slidably connected inside the sealing housing 221. The outer surface of the movable plate 222 has a plurality of large holes 223 arranged in an array. A plurality of baffles 224 are elastically connected in an array on the movable plate 222. The large holes 223 and the baffles 224 are coaxially arranged. The sealing housing 221 is filled with damping oil. The outer surface of the movable plate 222 also has a plurality of small holes 225 arranged in an array. An elastic element 226 is fixed between the movable plate 222 and the inner wall of the sealing housing 221. A connecting plate 227 is fixed at the end of the movable plate 222 away from the elastic element 226. A sealing ring is provided at the connection between the connecting plate 227 and the sealing housing 221.

[0034] Specifically, it should be noted that during the intervals of continuous traction therapy, patients can perform simple rehabilitation exercises through the device without leaving their beds. Patients can continuously perform leg clamping movements. During this process, the two support plates 31 will move towards each other, causing the connecting plate 227 to push the movable plate 222 to rotate towards the elastic element 226. When the movable plate 222 moves, the damping oil in the sealed housing 221 can only flow to the other side through the small hole 225, which, together with the elastic element 226 that can be elastically adjusted, generates resistance, allowing the patient to perform rehabilitation exercises. When the patient's leg completes the clamping and repositioning, the connecting plate 227 will drive the movable plate 222 to move in the opposite direction. At this time, the damping oil can flow simultaneously through the large hole 223 and the small hole 225, reducing the resistance encountered by the patient during repositioning. The compressed elastic element 226 will also assist in the repositioning.

[0035] To further explain, such as Figure 6 As shown, the clamping assembly 3 includes a support plate 31 rotatably connected to the base plate 21, a rectangular shell 32 rotatably connected to the upper end of the support plate 31, a connecting plate 227 fixedly connected to the support plate 31 on the same side, a leg guard base frame 25 fixedly connected to the rectangular shell 32, two clamping plates 33 symmetrically rotatably connected inside the rectangular shell 32, two telescopic members 34 provided between the two clamping plates 33, a trigger plate 35 provided above the two telescopic members 34, one end of the two telescopic members 34 rotatably connected to the trigger plate 35, and the other end of the two telescopic members 34 rotatably connected to the two clamping plates 33 respectively;

[0036] Specifically, the patient's leg is placed on the leg support base 25, and the pressure block 26 provides elastic support for the patient's leg. At this time, the patient's thigh will contact and press down the trigger plate 35 to move it downward. Under the action of the linkage of the two telescopic parts 34, the trigger plate 35 will cause the two clamping plates 33 to move towards each other as it moves downward, until the two clamping plates 33 contact the patient's thigh at the same time to fix it. With the support of the leg support base 25, the patient's leg is flattened. In order to facilitate the doctor's examination, the patient's thigh can still be lifted upward after being fixed by the rotational connection between the rectangular shell 32 and the support plate 31. Then, the fixed pulley group is fixed to the appropriate height on the slot 24 by bolts.

[0037] To elaborate further, such as Figure 7As shown, the pressure mechanism 4 includes an arc-shaped housing 41 fixed on the support frame 23. An L-shaped pipe 42 is fixedly connected to the arc-shaped housing 41. The L-shaped pipe 42 is connected to the output end of an external pumping device. A pressure regulating component 43 is provided inside the L-shaped pipe 42. A connecting ring 44 is fixedly connected to the outer surface of the arc-shaped housing 41. A pressure relief pipe 45 is fixedly connected to the connecting ring 44. The pressure relief pipe 45 is fixedly connected to an external housing. A piston 46 is fixedly fixed on the arc-shaped housing 41. A fixing ring 47 is fixedly fixed to the telescopic end of the piston 46.

[0038] To further explain, such as Figure 8 As shown, the pressure regulating component 43 includes a fixed tube 431 fixed inside the arc-shaped housing 41. The outer surface of the fixed tube 431 is provided with a plurality of pressure relief holes 432. The outer surface of the fixed tube 431 is fitted with a movable cover 433. A telescopic rod 434 is fixed between the movable cover 433 and the inner wall of the arc-shaped housing 41.

[0039] Specifically, the traction rope is wound around a fixed pulley system, and then both ends of the traction rope are fixed to the patient's bone screw and the fixation ring 47, respectively. Then, liquid is pumped into the L-shaped tube 42 through an external pumping device. The liquid flows from the arc-shaped housing 41 and the fixation tube 431 to the piston 46, causing it to extend and move the fixation ring 47 away from the patient. At this point, the moving fixation ring 47 can pull the patient's bone screw through the traction rope, achieving the traction function. It should be noted that, to ensure the patient receives sufficient tension, the pressure relief hole 432 is kept in communication with the arc-shaped housing 41 in the initial state. The liquid entering the fixation tube 431 flows to the piston 46... Simultaneously, the liquid flows from the pressure relief hole 432 into the arc-shaped housing 41, and then through the connecting ring 44 and the pressure relief pipe 45 into the box, keeping the liquid in the pipe in a flowing state. This continuously applies force to the fixing ring 47, thereby effectively tractioning the patient's bone screw. Furthermore, by activating the telescopic rod 434 to control the position of the movable cover 433, the communication area between the pressure relief hole 432 and the arc-shaped housing 41 can be adjusted, thereby controlling the thrust generated by the liquid on the fixing ring 47 within the piston 46, and thus adjusting the pulling force of the device. It should be noted that a back pressure valve is installed in the pressure relief pipe 45 to ensure sufficient pressure within the piston 46.

[0040] The functional principle of this invention can be explained by the following operation: After the patient lies flat on the hospital bed, the affected leg is placed on the upper surface of the two leg support frames 25. The weight of the leg causes the pressure block 26 to be subjected to vertical downward pressure. The pressure block 26 itself is elastic and deforms elastically after being pressed, lifting the leg upward in the opposite direction. At the same time, the trigger plate 35 is pressed down in the groin area. The trigger plate 35 bears the downward force. The lower end of the trigger plate 35 is rotatably connected to one end of the two telescopic members 34. When the trigger plate 35 moves down, it will drive the two clamping plates 33 to rotate through the two telescopic members 34. The two clamping plates 33 are symmetrically arranged inside the rectangular shell 32. When the trigger plate 35 moves down, it will cause the clamping plates 33 to rotate in the direction of mutual approach. The pivot point of rotation is the connection between the clamping plates 33 and the rectangular shell 32. That is to say, the telescopic member 34 is a connecting rod, which can convert the downward force of the trigger plate 35 into the rotation driving force of the clamping plate 33 until the inner side of the clamping plate 33 is tightly attached to the outer skin of the patient's thigh.

[0041] Furthermore, the downward movement of the trigger plate 35 directly determines the deflection angle of the telescopic component 34, thereby controlling the displacement distance of the clamping plate 33. This allows the clamping force to automatically adapt to the leg circumference without manual adjustment. When the clamping plate 33 finally comes to rest, the pressure on its inner side is evenly distributed, avoiding single-point pressure and ensuring reliable and comfortable fixation. After clamping is completed, since the support plate 31 and the rectangular shell 32 are connected by a rotating joint, if the patient's thigh needs to be raised or moved laterally, the support plate 31 can rotate freely relative to the rectangular shell 32, and the clamping plate 33 rotates synchronously with the thigh. The fixed state is not destroyed, making it convenient for medical staff to adjust the patient's position.

[0042] Before traction, the fixed pulley assembly is first installed into the slot 24 on the support frame 23. The operator manually adjusts the vertical position of the fixed pulley assembly in the slot 24 and tightens the bolts to lock it. One end of the traction rope is tied to the exposed end of the bone nail through which the patient's bone has penetrated. The traction rope is wound upwards around the groove of the fixed pulley assembly, and the other end is tied vertically downwards to the lug of the fixing ring 47. The fixing ring 47 is fixed to the telescopic end of the piston 46. The external pumping device is started, pumping the liquid medium into the inner cavity of the L-shaped tube 42 through the pipeline. The liquid enters the internal flow channel of the arc-shaped housing 41 along the L-shaped tube 42. The inner cavity of the arc-shaped housing 41 is connected to the cylinder chamber of the piston 46. The liquid pressure acts directly on the piston end face of the piston 46, generating an axial thrust. Under the action of the thrust, the telescopic end of the piston 46 extends outwards, causing the fixing ring 47 to move away from the direction of the patient's bone nail along a straight trajectory. The moving, fixed ring 47 pulls the free end of the traction rope. The traction rope, through the reversing action of the fixed pulley group, transforms the outward pulling force into a traction force towards the outside of the patient. This traction force is transmitted to the bone through the bone nail, realizing the continuous stretching of the bone along the predetermined direction. During the liquid driving process, the liquid in the arc-shaped shell 41 is not closed and static, but forms a circulation loop. The liquid flows from the arc-shaped shell 41 into the inner cavity of the fixed tube 431 of the pressure regulating component 43. The fixed tube 431 has a pressure relief hole 432 on its wall. The liquid seeps out through the pressure relief hole 432 to another return cavity of the arc-shaped shell 41, and then flows into the pressure relief pipe 45 through the connecting ring 44, and finally flows back to the external liquid storage tank. This circulation path makes the liquid flow continuously in the cylinder of the piston 46, keeping the pressure on the piston end face dynamically stable, avoiding sudden changes in traction force caused by pressure fluctuations, thereby ensuring that the bone nail is subjected to stable force.

[0043] The pressure regulation process is achieved through the extension and retraction of the telescopic rod 434. The fixed end of the telescopic rod 434 is installed on the inner wall of the arc-shaped housing 41, and its telescopic end is connected to the movable cover 433. The movable cover 433 is sleeved on the outer periphery of the fixed tube 431 and can slide axially. When the telescopic rod 434 extends, it pushes the movable cover 433 towards the pressure relief hole 432. The side wall of the movable cover 433 gradually covers part of the opening of the pressure relief hole 432, reducing the effective cross-sectional area of ​​the liquid flowing out of the pressure relief hole 432. This results in a decrease in the flow rate through the pressure relief hole 432, a reduction in the return flow rate, an increase in the pressure inside the piston 46 cylinder, and an increase in the thrust obtained by the fixed ring 47. Conversely, the telescopic rod... When 434 retracts, the movable cover 433 slides in the opposite direction, the open area of ​​the pressure relief hole 432 increases, the return flow increases, the pressure inside the cylinder decreases, and the thrust of the fixing ring 47 decreases. This allows the operator to adjust the final traction force applied to the bone screw by controlling the extension and retraction of the telescopic rod 434, thus meeting the precise requirements of different fracture types and different treatment cycles for the magnitude of the traction force. When the circulating liquid flows through the arc-shaped shell 41, the pressure relief pipe 45 and the outer box, it carries away the heat generated by the friction of the piston 46 and the heat dissipation due to the viscosity of the liquid itself to the outside in a timely manner, preventing the temperature inside the cylinder from rising too high and ensuring the reliability of the system performance during long-term continuous traction.

[0044] During the intervals of traction therapy, patients can perform active rehabilitation training without removing the device. The main movements involve alternating or simultaneous adduction and clamping of both legs. When the patient actively performs the adduction and clamping motion, the two support plates 31 rotate towards each other around their hinge points with the base plate 21. This rotation is transmitted to the movable plate 222 through the connecting plate 227. One end of the connecting plate 227 is fixed to the support plate 31, and the other end is hinged to the movable plate 222. Therefore, the angular displacement of the support plate 31 is converted into linear sliding of the movable plate 222 within the sealed housing 221. The movable plate 222 moves towards the elastic element 226. The movement and compression of the damping oil filled in the sealed housing 221 causes the damping oil to flow from one side of the movable plate 222 through the small hole 225 to the other side. Due to the small diameter of the small hole 225, a significant throttling pressure difference is generated when the damping oil passes through. This pressure difference acts on the movable plate 222 to form a reverse resistance. The reverse resistance is transmitted back to the support plate 31 through the connecting plate 227, so that the patient feels a clear exercise load when adducting the leg. At the same time, the movement of the movable plate 222 compresses the elastic element 226, and the elastic element 226 accumulates elastic potential energy. Its compression reaction force is also transmitted through the connecting plate 227, which is superimposed with the damping force to provide training resistance.

[0045] When the patient relaxes their legs, the support plate 31 rotates in the opposite direction, and the connecting plate 227 pulls the movable plate 222 away from the elastic element 226. At this time, the damping oil can flow through the large hole 223 and the small hole 225 simultaneously, significantly increasing the total flow area and greatly reducing the throttling effect. The reverse resistance of the movable plate 222 drops sharply, and the patient returns to their original position easily. At the same time, the compressed elastic element 226 releases the stored elastic potential energy, pushing the movable plate 222 to accelerate the reverse sliding. The movable plate 222 pushes the support plate 31 to quickly abduct and reset through the connecting plate 227, assisting the patient to complete a complete rehabilitation cycle. In this linkage, the difference in the aperture of the large hole 223 and the small hole 225 and the stiffness of the elastic element 226 jointly determine the asymmetry between the clamping resistance and the reset assistance during training, ensuring effective exercise while reducing the physical exertion of returning to the original position.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tension-stabilized orthopedic traction device, comprising a base (1), characterized in that: The base (1) is provided with two traction mechanisms (2), the traction mechanism (2) is provided with a clamping assembly (3), and a pressure mechanism (4) is provided below the clamping assembly (3). The traction mechanism (2) includes a base plate (21) fixed on the base (1), the base plate (21) has an arc groove, the arc groove has a movable component (22), the base plate (21) has a support frame (23) fixed on it, the outer surface of the support frame (23) has a slot (24), the support frame (23) has two leg guard base frames (25) above the support frame (23), the upper ends of the two leg guard base frames (25) are each arrayed with multiple pressing blocks (26), the two leg guard base frames (25) are connected by a connecting rod (27), and the two leg guard base frames (25) are fixedly connected by the connecting rod (27). The pressure mechanism (4) includes an arc-shaped housing (41) fixed on a support frame (23), an L-shaped tube (42) fixedly connected to the arc-shaped housing (41), a pressure regulating component (43) provided inside the L-shaped tube (42), a connecting ring (44) fixedly connected to the outer surface of the arc-shaped housing (41), a pressure relief pipe (45) fixedly connected to the connecting ring (44), a piston component (46) fixedly fixed on the arc-shaped housing (41), and a fixing ring (47) fixed to the telescopic end of the piston component (46). The pressure regulating component (43) includes a fixed tube (431) fixed inside the arc-shaped housing (41). The outer surface of the fixed tube (431) is provided with a plurality of pressure relief holes (432). The outer surface of the fixed tube (431) is fitted with a movable cover (433). A telescopic rod (434) is fixed between the movable cover (433) and the inner wall of the arc-shaped housing (41).

2. The orthopedic auxiliary traction device with tension stabilization according to claim 1, characterized in that, A pulley assembly is slidably connected within the slot (24), and the pulley assembly is fixed within the slot (24) by bolts.

3. The orthopedic auxiliary traction device with stabilizing tension according to claim 1, characterized in that, The movable component (22) includes a sealed housing (221) fixed in an arc-shaped groove. A movable plate (222) is slidably connected inside the sealed housing (221). The outer surface of the movable plate (222) is provided with a plurality of large holes (223). A plurality of baffles (224) are elastically connected in an array on the movable plate (222). The outer surface of the movable plate (222) is also provided with a plurality of small holes (225). An elastic element (226) is fixed between the movable plate (222) and the inner wall of the sealed housing (221). A connecting plate (227) is fixed at one end of the movable plate (222) away from the elastic element (226).

4. The orthopedic auxiliary traction device with stabilizing tension according to claim 3, characterized in that, The large hole (223) and the baffle (224) are coaxially arranged, and the sealed housing (221) is filled with damping oil.

5. The orthopedic auxiliary traction device with stabilizing tension according to claim 3, characterized in that, The clamping assembly (3) includes a support plate (31) rotatably connected to the base plate (21). A rectangular shell (32) is rotatably connected to the upper end of the support plate (31). Two clamping plates (33) are symmetrically rotatably connected inside the rectangular shell (32). Two telescopic members (34) are provided between the two clamping plates (33). A trigger plate (35) is provided above the two telescopic members (34).

6. The orthopedic auxiliary traction device with stabilizing tension according to claim 5, characterized in that, One end of each of the two telescopic members (34) is rotatably connected to the trigger plate (35), and the other end of each of the two telescopic members (34) is rotatably connected to the two clamping plates (33).

7. The orthopedic auxiliary traction device with stabilizing tension according to claim 5, characterized in that, A sealing ring is provided at the connection between the connecting plate (227) and the sealing shell (221). The connecting plate (227) is fixedly connected to the support plate (31) located on the same side. The leg guard base (25) is fixedly connected to the rectangular shell (32).

8. The orthopedic auxiliary traction device with stabilizing tension according to claim 1, characterized in that, The L-shaped pipe (42) is connected to the output end of the external pumping device, and the pressure relief pipe (45) is fixedly connected to the external housing.

Images