Multi-dimensional angle-adjustable fracture three-dimensional reduction traction device

Abstract

The present application relates to the field of orthopedic treatment apparatus, more particularly, it relates to multi-dimensional angle adjustable fracture three-dimensional reduction traction device, including leg support mechanism, for supporting patient's shank while fixing knee end; traction mechanism, for traction patient's heel; support mechanism, for the installation of leg support mechanism and traction mechanism; The support mechanism includes two groups of telescopic support assembly for mounting on the hospital bed, further includes the first cross bar and the second cross bar arranged between the two groups telescopic support assembly, and the locking assembly arranged on the telescopic support assembly; The locking assembly includes the locking piece arranged on the telescopic support assembly and the anti-falling fine adjustment piece arranged on the locking piece; The leg support mechanism is slidably installed on the first cross bar, and the present application solves the problem that the existing multi-dimensional angle fracture traction device is complicated to adjust, the patient's adaptability is poor and the stability of the adjustment is insufficient, which leads to accidental movement or falling.

Description

Technical Field

[0001] This invention relates to the field of orthopedic treatment devices, and more specifically, to a multi-dimensional adjustable angle three-dimensional fracture reduction and traction device. Background Technology

[0002] In orthopedic clinical treatment, fracture reduction and fixation are always the core aspects, and their effectiveness directly affects the patient's rehabilitation process and final prognosis. With the advancement of medical technology, multi-dimensional angle fracture traction devices have emerged as important tools for handling complex fractures. These devices apply traction force from multiple directions and angles to achieve more precise fracture reduction, and are particularly suitable for complex fractures that are difficult to handle with traditional methods.

[0003] However, despite the significant advantages of multi-dimensional angle fracture traction devices in fracture reduction, their height adjustment mechanisms face a series of technical problems that urgently need to be solved. Existing multi-dimensional angle fracture traction devices generally suffer from cumbersome adjustment processes and poor patient adaptability during height adjustment. Specifically, these devices typically use bolt locking for height adjustment. When medical staff adjust the height, due to significant differences in the body size, injury condition, and comfort needs of different patients, it is difficult to achieve precise adaptation, thus requiring multiple adjustments. During multiple fine-tuning of the height, the lack of effective locking and anti-fall mechanisms for the bolts means that the device may accidentally move or suddenly fall due to external forces or gravity during the adjustment process. This not only interferes with the accuracy of fracture reduction but also causes secondary injury to the patient.

[0004] To address the aforementioned issues, a multi-dimensional adjustable angle three-dimensional fracture reduction and traction device was proposed. Summary of the Invention

[0005] Technical problems to be solved To address the problems existing in the prior art, this invention provides a multi-dimensional angle adjustable fracture three-dimensional reduction traction device, which solves the problems mentioned in the background art, such as cumbersome adjustment, poor patient adaptability, and insufficient adjustment stability that easily lead to accidental movement or falling.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a multi-dimensional adjustable fracture three-dimensional reduction and traction device, including a leg support mechanism for supporting the patient's lower leg while fixing the knee end; Traction mechanism used to pull the patient's calcaneus; Support mechanism, used for mounting leg support mechanism and traction mechanism; The support mechanism includes two sets of telescopic support assemblies for mounting on a hospital bed, a first crossbar and a second crossbar disposed between the two sets of telescopic support assemblies, and a locking assembly disposed on the telescopic support assembly; The locking assembly includes a locking element disposed on the telescopic support assembly and an anti-fall fine-tuning element disposed on the locking element; The leg support mechanism is slidably mounted on the first crossbar, and the traction mechanism is slidably mounted on the second crossbar. Both the leg support mechanism and the traction mechanism are fixed by locking bolts.

[0007] The present invention is further configured such that the telescopic support assembly consists of a plug sleeve and a telescopic rod, and the telescopic rod is movably plugged into the plug sleeve. A sliding groove is provided on one side of the plug sleeve, and the locking assembly is slidably installed in the sliding groove. The telescopic rod has a wedge-shaped surface at one end where it is inserted into the insertion sleeve, and the telescopic rod is limited by the anti-fall fine-tuning part of the locking component through the wedge-shaped surface.

[0008] The present invention is further configured such that the locking member includes a slider slidably installed in the slide groove, a clamping block disposed at one end of the slider and a threaded post disposed at the other end of the slider, and a threaded sleeve threadedly connected to the outside of the threaded post. The slider, clamping block, and threaded column are integrally formed, and a threaded hole is provided through the axis of the slider, clamping block, and threaded column. The anti-fall fine adjustment component and the threaded hole are threadedly matched.

[0009] The present invention is further configured such that the anti-fall fine-tuning component is a bolt rod, one end of the bolt rod that abuts against the wedge-shaped surface is provided with a ball head, and the other end of the bolt rod is provided with a hand lever.

[0010] The present invention is further configured such that the leg support mechanism includes a telescopic leg support assembly movably disposed on the first crossbar, a knee bend plate disposed at the end of the telescopic leg support assembly away from the first crossbar, and a strap disposed at the end of the knee bend plate away from the telescopic leg support assembly.

[0011] The present invention is further configured such that the telescopic leg support assembly consists of a leg support sleeve plate and a telescopic leg support plate, and the leg support sleeve plate and the telescopic leg support plate are fixed by locking bolts. The leg support sleeve plate is provided with mounting holes that are movably matched with the first crossbar, and the leg support sleeve plate and the first crossbar are fixed by locking bolts.

[0012] The present invention is further configured such that the traction mechanism includes a movable sleeve movably disposed on the second crossbar, a bracket disposed on the movable sleeve, a guide wheel assembly rotatably mounted on the bracket, and a traction component disposed on the guide wheel assembly.

[0013] The present invention is further configured such that the traction assembly includes a traction rope disposed on the guide wheel assembly, a traction bow disposed at one end of the traction rope for fixing the calcaneus, and a traction weight disposed at the other end of the traction rope.

[0014] The present invention is further configured such that the guide wheel assembly includes a guide wheel frame rotatably mounted on the top of the bracket, and a guide wheel disposed on the guide wheel frame.

[0015] The present invention is further configured such that a boss is provided on one side of the guide wheel frame, and a limiting hole is provided on the boss, and the traction rope passes through the limiting hole and is arranged vertically.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a multi-dimensional angle adjustable three-dimensional fracture reduction and traction device, which has the following beneficial effects: 1. In this invention, the height of the telescopic support assembly is limited by the wedge-shaped surface contacting the ball end of the anti-fall micro-adjustment component, preventing it from falling and thus locking the position. Then, the depth of the anti-fall micro-adjustment component entering and leaving the inner cavity of the insertion sleeve is adjusted by the thread of the anti-fall micro-adjustment component, changing the position of the ball end face contacting the wedge-shaped surface, thereby achieving fine adjustment of the height of the telescopic rod. During adjustment, since the ball end of the anti-fall micro-adjustment component is always located in the inner cavity of the insertion sleeve, the telescopic rod will only gradually move down or up, and will not drop suddenly, avoiding the situation where a sudden drop during height adjustment could cause secondary injury to the patient.

[0017] 2. In this invention, the position of the telescopic support assembly is locked after adjustment by setting an obstacle below the telescopic rod, namely the ball end of the anti-fall micro-adjustment component, so that it will not fall during use. In contrast, the current bolt locking method, if it is stepless adjustment, achieves position locking by squeezing friction at the bolt end, which may cause the patient to fall from a height during use. Therefore, this method is more stable than the existing locking method. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-dimensional adjustable fracture three-dimensional reduction and traction device.

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Figure 3 This is a cross-sectional structural diagram of the telescopic support assembly.

[0021] Figure 4 This is a schematic diagram of the exploded structure of the locking component.

[0022] Figure 5 This is a schematic diagram of the traction mechanism.

[0023] Figure 6 This is a schematic diagram of the leg support mechanism.

[0024] In the diagram: 1. Leg support mechanism; 101. Knee bend plate; 102. Strap; 2. Traction mechanism; 201. Movable sleeve; 202. Bracket; 3. Bracket mechanism; 301. First crossbar; 302. Second crossbar; 4. Telescopic bracket assembly; 401. Insert sleeve; 402. Telescopic rod; 403. Slide groove; 404. Wedge-shaped surface; 5. Locking assembly; 6. Locking element; 601. Slider; 602. Clamping block; 603. 604 Threaded post; 605 Threaded sleeve; 7. Fall arrestor fine-tuning component; 701 Hand lever; 8. Telescopic leg support assembly; 801 Leg support sleeve plate; 802 Telescopic leg support plate; 803 Mounting hole; 9. Guide wheel assembly; 901 Guide wheel frame; 902 Guide wheel; 903 Boss; 904 Limiting hole; 10. Traction assembly; 1001 Traction rope; 1002 Traction bow; 1003 Traction weight. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0028] For examples, please refer to Figure 1 - Figure 6 A multi-dimensional adjustable fracture three-dimensional reduction and traction device, including a leg support mechanism 1, is used to support the patient's lower leg and fix the knee end at the same time. Traction mechanism 2 is used to traction the patient's calcaneus; Support mechanism 3 is used for mounting leg support mechanism 1 and traction mechanism 2; The support mechanism 3 includes two sets of telescopic support assemblies 4 for installation on the hospital bed, a first crossbar 301 and a second crossbar 302 disposed between the two sets of telescopic support assemblies 4, and a locking assembly 5 disposed on the telescopic support assembly 4; Locking component 5 includes a locking element 6 disposed on telescopic support component 4 and a fall prevention fine adjustment element 7 disposed on locking element 6; The leg support mechanism 1 is slidably mounted on the first crossbar 301, and the traction mechanism 2 is slidably mounted on the second crossbar 302. Both the leg support mechanism 1 and the traction mechanism 2 are fixed by locking bolts.

[0029] The first crossbar 301 is positioned above the second crossbar 302. Both ends of the first crossbar 301 and the second crossbar 302 are fixedly connected to the upper sections of the two sets of telescopic support assemblies 4, respectively. The first crossbar 301 and the second crossbar 302 are detachable from the telescopic support assemblies 4. Depending on the patient's condition, a corresponding number of leg support mechanisms 1 and traction mechanisms 2 can be installed. For example, one set is sufficient for a single leg fracture. The two sets of telescopic support assemblies 4 are inserted into the fixed intubation tube at the end of the bed. The telescopic support assemblies 4 can adjust their height up and down according to the patient's body shape and injury condition, thereby making the height of the leg support mechanism 1 on the first crossbar 301 suitable for different patients.

[0030] After the initial telescopic adjustment of the telescopic support assembly 4, the locked height is generally an approximate height. While this height is suitable for most patients, a small number of patients may still feel uncomfortable due to their physical condition. When making fine adjustments at this point, if the patient's legs are not placed on the leg support mechanism 1 and adjust synchronously with the telescopic support assembly 4, it is difficult to find the optimal support position, requiring multiple adjustments. If the patient's legs are placed on the leg support mechanism 1 and adjust synchronously with the telescopic support assembly 4, the telescopic support assembly 4 will suddenly drop under gravity after being unlocked, potentially causing secondary injury to the patient's legs. Although it can be manually supported, the risk of it slipping out of their hands still exists. Therefore, currently, when adjusting the height, the patient's legs are not placed on the leg support mechanism 1, and multiple adjustments are made to achieve the optimal height, which is a rather cumbersome operation.

[0031] This invention provides a fall-prevention fine-tuning component 7 on the locking component 6. After the initial height adjustment, the fall-prevention fine-tuning component 7 can be used to fine-tune the height. During fine-tuning, the sudden contraction and drop of the telescopic support assembly 4 is avoided, thereby preventing secondary injury to the patient's injured leg.

[0032] The telescopic bracket assembly 4 consists of a plug sleeve 401 and a telescopic rod 402, and the telescopic rod 402 is movably plugged into the plug sleeve 401. A sliding groove 403 is provided on one side of the plug sleeve 401, and the locking assembly 5 is slidably installed in the sliding groove 403. The telescopic rod 402 is inserted into the insertion sleeve 401 at one end and is provided with a wedge-shaped surface 404. The telescopic rod 402 is limited by the wedge-shaped surface 404 corresponding to the anti-fall fine adjustment part 7 of the locking component 5.

[0033] The insertion sleeve 401 is inserted and fixed to the fixed insertion tube at the end of the hospital bed. The first crossbar 301 and the second crossbar 302 are both fixedly installed at the end of the telescopic rod 402 away from the insertion sleeve 401. The locking component 5 slides in the slide groove 403, which drives the anti-fall fine adjustment component 7 to move up and down, thereby abutting against and driving the telescopic rod 402 in the insertion sleeve 401 to extend and retract. After the initial adjustment, the locking component 6 in the locking component 5 locks the position of the anti-fall fine adjustment component 7. After being limited, the end of the anti-fall fine adjustment component 7 abuts against the telescopic rod. 402, through the wedge-shaped surface 404, prevents the telescopic rod 402 from continuing to move downward within the insertion sleeve 401, thereby realizing the telescopic adjustment of the telescopic support assembly 4. After the initial position adjustment is determined, if the patient feels uncomfortable, the anti-fall fine-tuning component 7 can be adjusted to contact the wedge-shaped surface 404 on the telescopic rod 402, thereby achieving a fine adjustment of the height. During fine-tuning, the end of the anti-fall fine-tuning component 7 always contacts the wedge-shaped surface 404 of the telescopic rod 402, thus preventing a sudden fall during fine-tuning.

[0034] The locking component 6 includes a slider 601 that is slidably installed in the slide groove 403, a clamping block 602 disposed at one end of the slider 601, a threaded post 603 disposed at the other end of the slider 601, and a threaded sleeve 604 that is threadedly sleeved on the outside of the threaded post 603. The slider 601, clamping block 602 and threaded post 603 are integrally formed, and the slider 601, clamping block 602 and threaded post 603 are provided with threaded holes 605 through the axial position, and the anti-fall fine adjustment part 7 is threadedly matched with the threaded hole 605.

[0035] The clamping block 602 is located at one end of the slider 601 near the insertion sleeve 401 and inside the insertion sleeve 401. The threaded post 603 is located at one end of the slider 601 away from the clamping block 602 and extends through the slide groove 403 to the outside of the insertion sleeve 401. The threaded sleeve 604 and the threaded post 603 extending through the slide groove 403 to the outside of the insertion sleeve 401 are threadedly connected. The locking of the locking member 6 is achieved by rotating the threaded sleeve 604 and then, under the limit of the slider 601, pulling the threaded post 603 towards the outside of the insertion sleeve 401, thereby causing the clamping block 602 to fit against the inner wall of the insertion sleeve 401. When the clamping block 602 and the threaded sleeve 604 fit against and clamp the inner and outer walls of the insertion sleeve 401, the position is locked.

[0036] It should be noted that when adjusting the telescopic bracket assembly 4, the locking part 6 is in the unlocked state. In the unlocked state, neither the threaded sleeve 604 nor the clamping block 602 is in contact with the inner or outer wall of the insertion sleeve 401, and the slider 601 cannot disengage from the slide groove 403.

[0037] The fall arrestor adjustment component 7 is a bolt rod. One end of the bolt rod that abuts against the wedge-shaped surface 404 is provided with a ball head, and the other end of the bolt rod is provided with a hand lever 701.

[0038] In the initial state, the bolt rod is threaded into the threaded hole 605, and its ball end extends through the threaded hole 605 into the inside of the insertion sleeve 401, and is located at the middle of the contact wedge surface 404. Three sets of hand levers 701 are provided. The setting of the hand levers 701 facilitates operation by medical staff. It should be noted that the threaded sleeve 604 in the locking part 6 is connected to the actuating ring by three sets of support rods, and the diameter of the actuating ring is larger than the maximum outer diameter of the three sets of hand levers 701. This ensures that the drive of the threaded sleeve 604 is not affected by the setting of the hand levers 701.

[0039] The leg support mechanism 1 includes a telescopic leg support assembly 8 movably mounted on the first crossbar 301, a knee bend plate 101 disposed at the end of the telescopic leg support assembly 8 away from the first crossbar 301, and a strap 102 disposed at the end of the knee bend plate 101 away from the telescopic leg support assembly 8.

[0040] The strap 102 is equipped with Velcro. The strap 102 is fastened to the patient's thigh near the knee by Velcro, thereby limiting the leg and preventing the patient's leg from shifting when the traction mechanism 2 pulls the lower leg, which would affect the repositioning of the patient's leg bones.

[0041] The telescopic leg support assembly 8 consists of a leg support sleeve 801 and a telescopic leg support 802, and the leg support sleeve 801 and the telescopic leg support 802 are fixed by locking bolts. The leg support sleeve 801 is provided with a mounting hole 803 that matches the first crossbar 301, and the leg support sleeve 801 and the first crossbar 301 are fixed by locking bolts.

[0042] The telescopic leg support assembly 8 is adaptively adjusted according to the body shape of different patients so that the curvature of the knee bend plate 101 fits the patient's knee bend and the patient's lower leg is placed entirely on the telescopic leg support assembly 8. At the same time, the initial position of the telescopic leg support assembly 8 is moved and adjusted according to the patient's position on the hospital bed so that it corresponds to the position of the injured leg.

[0043] The traction mechanism 2 includes a movable sleeve 201 movably mounted on the second crossbar 302, a bracket 202 mounted on the movable sleeve 201, a guide wheel assembly 9 rotatably mounted on the bracket 202, and a traction assembly 10 mounted on the guide wheel assembly 9.

[0044] The traction mechanism 2 is used to traction the patient's calcaneus so that the fractured bone ends can align, thereby achieving healing. During a fracture, the patient's muscles contract, making it easy for the fracture ends to overlap and become misaligned. By traction on the calcaneus, the overlapping fracture ends are stretched to align. At the same time, there is also an angular displacement of the patient's leg bone during a fracture. Therefore, the position of the guide wheel assembly 9 can be adjusted by adjusting the movable sleeve 201, thereby creating a positional offset with the leg support mechanism 1. When one end of the traction assembly 10 is connected to the patient's calcaneus, and then passes through the misaligned guide wheel assembly 9, its traction force includes not only the axial tension of the bone but also the tension of the offset angle, thereby pulling the bone with the deviated angle back into alignment.

[0045] It should be noted that the movable sleeve 201 is fixed to the second crossbar 302 by the locking bolt below for limiting, and the guide wheel assembly 9 is rotated and installed on the bracket 202 so that the guide wheel assembly 9 can guide the traction assembly 10 at different offset angles.

[0046] The traction assembly 10 includes a traction rope 1001 disposed on the guide wheel assembly 9, a traction bow 1002 disposed at one end of the traction rope 1001 for fixing the calcaneus, and a traction weight 1003 disposed at the other end of the traction rope 1001.

[0047] The traction weight 1003 is adjusted according to the patient's fracture condition to ensure that the bone can be repositioned after traction. The traction rope 1001 is guided by the guide wheel assembly 9, and the traction bow 1002 is fixed to the patient's calcaneus by the Steiner needle.

[0048] The guide wheel assembly 9 includes a guide wheel frame 901 rotatably mounted on the top of the bracket 202, and a guide wheel 902 disposed on the guide wheel frame 901.

[0049] A boss 903 is provided on one side of the guide wheel frame 901, and a limiting hole 904 is provided on the boss 903. The traction rope 1001 passes through the limiting hole 904 and is set vertically.

[0050] After the guide wheel assembly 9 shifts from the leg support mechanism 1 via the movable sleeve 201, and the traction bow 1002 fixes the patient's calcaneus, the traction rope 1001, after passing through the guide wheel 902 and the limiting hole 904, pulls the calcaneus at an angle, thereby aligning the fracture ends and improving the healing effect. At the same time, the setting of the limiting hole 904 prevents the traction rope 1001 from falling off the guide wheel 902 due to the oblique traction force.

[0051] Working principle: In use, insert the insertion sleeve into the fixed insertion tube at the end of the bed. Then, move the telescopic leg support assembly according to the patient's position so that it corresponds to the patient's leg position. Next, according to the patient's body shape, pull out the telescopic leg support plate from the telescopic leg support assembly so that the knee flexion plate fits against the raised knee flexion. Then, tighten the locking bolt on one side of the telescopic leg support assembly to fix the length of the telescopic leg support assembly. Then, move the locking piece up and down, causing the ball end of the anti-fall adjustment piece to abut against the telescopic rod, thereby moving it up and down. The up and down movement of the telescopic rod realizes the up and down movement of the telescopic leg support assembly, thus initially adjusting the height position of the telescopic leg support assembly. If the patient feels uncomfortable, the anti-fall adjustment can be made by screwing the screw. The adjustment mechanism changes the depth of the ball end of the fall arrestor within the inner cavity of the insertion sleeve, thereby adjusting the position of the ball end against the wedge-shaped surface of the telescopic rod. This allows for fine-tuning of the telescopic rod's height, ensuring the patient receives traction treatment in the most comfortable posture. The knee flexor plate is then bound to the patient's leg with straps for restraint. The traction bow is then fixed to the patient's calcaneus using a Steinmann pin. Appropriate traction weights are added based on the patient's condition. Finally, the movable sleeve is adjusted using a detection device according to the fracture details, changing the direction of the traction rope to ensure the fracture ends align after traction, thus guaranteeing the effectiveness of traction reduction.

[0052] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-dimensional adjustable angle three-dimensional fracture reduction and traction device, characterized in that it includes: Leg support mechanism (1) is used to support the patient's lower leg and fix the knee end; Traction mechanism (2) is used to traction the patient's calcaneus; The support mechanism (3) is used for the installation of the leg support mechanism (1) and the traction mechanism (2); The support mechanism (3) includes two sets of telescopic support assemblies (4) for installation on the hospital bed, a first crossbar (301) and a second crossbar (302) disposed between the two sets of telescopic support assemblies (4), and a locking assembly (5) disposed on the telescopic support assembly (4). The locking component (5) includes a locking member (6) disposed on the telescopic support assembly (4) and a fall prevention fine adjustment member (7) disposed on the locking member (6). The leg support mechanism (1) is slidably mounted on the first crossbar (301), and the traction mechanism (2) is slidably mounted on the second crossbar (302). Both the leg support mechanism (1) and the traction mechanism (2) are fixed by locking bolts. The telescopic support assembly (4) consists of a plug sleeve (401) and a telescopic rod (402), and the telescopic rod (402) is movably inserted into the plug sleeve (401). A sliding groove (403) is provided on one side of the plug sleeve (401), and the locking assembly (5) is slidably installed in the sliding groove (403). One end of the telescopic rod (402) inserted into the plug sleeve (401) is provided with a wedge-shaped surface (404), and the telescopic rod (402) is limited by the wedge-shaped surface (404) corresponding to the anti-fall fine adjustment part (7) of the locking assembly (5). The locking component (6) includes a slider (601) slidably installed in the slide groove (403), a clamping block (602) disposed at one end of the slider (601), a threaded post (603) disposed at the other end of the slider (601), and a threaded sleeve (604) threadedly sleeved on the outside of the threaded post (603); the slider (601), clamping block (602) and threaded post (603) are integrally formed, and a threaded hole (605) is provided through the axial position of the slider (601), clamping block (602) and threaded post (603), and the anti-fall fine adjustment component (7) is threadedly matched with the threaded hole (605); The anti-fall fine adjustment component (7) is a bolt rod. One end of the bolt rod that abuts against the wedge-shaped surface (404) is provided with a ball head, and the other end of the bolt rod is provided with a hand lever (701).

2. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 1, characterized in that: The leg support mechanism (1) includes a telescopic leg support assembly (8) movably mounted on the first crossbar (301), a knee bend plate (101) disposed at the end of the telescopic leg support assembly (8) away from the first crossbar (301), and a strap (102) disposed at the end of the knee bend plate (101) away from the telescopic leg support assembly (8).

3. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 2, characterized in that: The telescopic leg support assembly (8) consists of a leg support sleeve plate (801) and a telescopic leg support plate (802), and the leg support sleeve plate (801) and the telescopic leg support plate (802) are fixed by locking bolts. The leg support sleeve plate (801) is provided with a mounting hole (803) that matches the first crossbar (301), and the leg support sleeve plate (801) and the first crossbar (301) are fixed by locking bolts.

4. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 3, characterized in that: The traction mechanism (2) includes a movable sleeve (201) movably mounted on the second crossbar (302), a bracket (202) mounted on the movable sleeve (201), a guide wheel assembly (9) rotatably mounted on the bracket (202), and a traction assembly (10) mounted on the guide wheel assembly (9).

5. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 4, characterized in that: The traction assembly (10) includes a traction rope (1001) disposed on the guide wheel assembly (9), a traction bow (1002) disposed at one end of the traction rope (1001) for fixing the calcaneus, and a traction weight (1003) disposed at the other end of the traction rope (1001).

6. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 5, characterized in that: The guide wheel assembly (9) includes a guide wheel frame (901) rotatably mounted on the top of the bracket (202) and a guide wheel (902) disposed on the guide wheel frame (901).

7. The multi-dimensional angle adjustable fracture three-dimensional reduction and traction device according to claim 6, characterized in that: The guide wheel frame (901) has a boss (903) on one side, and a limiting hole (904) is provided on the boss (903). The traction rope (1001) passes through the limiting hole (904) and is set vertically.

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