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

Abstract

The invention relates to the field of orthopedic treatment instruments, in particular to a multi-dimensional angle adjustable three-dimensional fracture reduction traction device which comprises a leg supporting mechanism, a traction mechanism and a traction mechanism. The traction mechanism is used for traction of the calcaneus of the patient; the bracket mechanism is used for mounting the leg support mechanism and the traction mechanism; the support mechanism comprises two sets of telescopic support assemblies used for being installed on a sickbed, and further comprises a first transverse rod and a second transverse rod which are arranged between the two sets of telescopic support assemblies, and locking assemblies arranged on the telescopic support assemblies. The locking assembly comprises a locking piece arranged on the telescopic support assembly and an anti-falling fine adjustment piece arranged on the locking piece. The multi-dimensional angle fracture traction device solves the problems that when the height of an existing multi-dimensional angle fracture traction device is adjusted, adjustment is tedious, patient adaptability is poor, and due to the fact that the adjustment stability is insufficient, accidental movement or falling is likely to happen.

Description

Technical Field

[0001] The present invention relates to the field of orthopedic treatment instruments, and more particularly to a multi-dimensional angle-adjustable three-dimensional fracture reduction and traction device. Background Art

[0002] In orthopedic clinical treatment, fracture reduction and fixation remain core procedures, their effectiveness directly impacting the patient's recovery process and ultimate prognosis. With advances in medical technology, multi-angle fracture traction devices have emerged as a crucial tool for managing complex fractures. These devices apply traction from multiple directions and angles, aiming to achieve more precise fracture reduction and are particularly suitable for complex fractures that are difficult to treat with traditional methods.

[0003] However, although the multi-dimensional angle fracture traction device has shown significant advantages in fracture reduction, its height adjustment mechanism has a series of technical problems that need to be solved urgently. The existing multi-dimensional angle fracture traction devices generally face the problems of cumbersome adjustment process and poor patient adaptability when adjusting the height. Specifically, the height adjustment of these devices is generally fixed by bolt locking. When medical staff adjust the height, it is difficult to achieve precise adaptation due to the significant differences in body shape, injury and comfort requirements of different patients. Therefore, multiple adjustments are required. When making multiple fine-tuning of the height, due to the lack of effective locking and anti-falling mechanism of the bolt locking, the equipment may accidentally move or suddenly fall due to external force or gravity during the adjustment process, which will not only interfere with the accuracy of fracture reduction, but also cause secondary injuries to the patient.

[0004] In order to solve the above problems, a multi-dimensional angle-adjustable three-dimensional fracture reduction and traction device is proposed. Summary of the Invention

[0005] Technical problems solved In response to the problems existing in the prior art, the present invention provides a multi-dimensional angle-adjustable three-dimensional fracture reduction and traction device to solve the problems mentioned in the background technology of the existing multi-dimensional angle fracture traction device, such as cumbersome adjustment during height adjustment, poor patient adaptability, and insufficient adjustment stability, which may lead to accidental movement or falling.

[0006] (2) Technical solution To achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-dimensional angle-adjustable three-dimensional fracture reduction and traction device, comprising a leg support mechanism for supporting the patient's calf while fixing the knee end; A traction mechanism, used for traction of the patient's calcaneus; Bracket mechanism, used for installing the leg support mechanism and the traction mechanism; The support mechanism includes two sets of telescopic support assemblies for installation on the hospital bed, a first crossbar and a second crossbar provided between the two sets of the telescopic support assemblies, and a locking assembly provided on the telescopic support assemblies; The locking assembly includes a locking piece provided on the telescopic bracket assembly and an anti-falling fine-tuning piece provided on the locking piece; The leg support mechanism is slidably mounted on the first cross bar, and the traction mechanism is slidably mounted on the second cross bar. 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 bracket assembly is composed of a plug-in sleeve and a telescopic rod, and the telescopic rod is movably plugged into the plug-in sleeve, a sliding groove is provided on one side of the plug-in sleeve, and the locking assembly is slidably installed in the sliding groove; One end of the telescopic rod inserted into the plug sleeve is provided with a wedge surface, and the telescopic rod is limited by the wedge surface corresponding to the anti-fall fine-tuning piece of the locking component.

[0008] The present invention is further configured such that the locking member includes a slider slidably mounted in the slide groove, a clamping block provided at one end of the slider, a threaded column provided at the other end of the slider, and a threaded sleeve threadedly sleeved on the outside of the threaded column; The slider, the clamping block and the threaded column are integrally formed, and threaded holes are provided through the axis positions of the slider, the clamping block and the threaded column, and the anti-fall fine-tuning piece is threadably matched with the threaded hole.

[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 contacts the wedge 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 arranged on the first cross bar, and also includes a knee bend plate arranged at one end of the telescopic leg support assembly away from the first cross bar, and a strap arranged at one 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 and a telescopic leg support plate, and the leg support sleeve and the telescopic leg support plate are fixed by locking bolts, a mounting hole is provided on the leg support sleeve that is movably matched with the first cross bar, and the leg support sleeve and the first cross bar are fixed by locking bolts.

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

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

[0016] (3) 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. The telescopic bracket assembly of the present invention is limited after height adjustment by the wedge-shaped surface abutting against the ball head end of the anti-fall fine-tuning piece, which cannot fall, thereby realizing position locking. Then, the depth of the anti-fall fine-tuning piece entering and leaving the inner cavity of the plug-in sleeve is adjusted by the thread of the anti-fall fine-tuning piece, and the position of the ball head end face abutting against the wedge surface is changed, thereby realizing fine adjustment of the height of the telescopic rod. During adjustment, since the ball head end of the anti-fall fine-tuning piece is always located in the inner cavity of the plug-in sleeve, the telescopic rod will only move down or up gradually and will not drop suddenly, thereby avoiding the situation where a sudden drop during height adjustment causes secondary injury to the patient.

[0017] 2. In the present invention, the position of the telescopic bracket assembly after adjustment is locked by setting an obstacle under the telescopic rod, namely the ball head end of the anti-fall fine-tuning member, so that it will not fall during use. The current bolt locking method, if it is stepless adjustment, is to achieve position locking through the friction force of the bolt end, which will cause the patient to fall from a high position during use. Therefore, it is more stable than the existing locking method. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the telescopic bracket assembly.

[0021] Figure 4 Schematic diagram of the exploded structure of the locking component.

[0022] Figure 5 It is a structural diagram of the traction mechanism.

[0023] Figure 6 It is a structural diagram of the leg support mechanism.

[0024] Figure: 1, leg support mechanism; 101, knee board; 102, strap; 2, traction mechanism; 201, movable sleeve; 202, bracket; 3, bracket mechanism; 301, first crossbar; 302, second crossbar; 4, telescopic bracket assembly; 401, plug sleeve; 402, telescopic rod; 403, slide; 404, wedge surface; 5, locking assembly; 6, locking member; 601, slider; 602, clamping block; 603, Threaded column; 604, threaded sleeve; 605, threaded hole; 7, anti-fall fine-tuning piece; 701, hand lever; 8, telescopic leg support assembly; 801, leg support sleeve; 802, telescopic leg support plate; 803, mounting hole; 9, guide wheel assembly; 901, guide wheel frame; 902, guide wheel; 903, boss; 904, limit hole; 10, traction assembly; 1001, traction rope; 1002, traction bow; 1003, traction weight. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the 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 ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] For examples, see Figure 1 - Figure 6 , a multi-dimensional angle-adjustable fracture stereoscopic reduction and traction device, comprising a leg support mechanism 1 for supporting the patient's calf while fixing the knee end; Traction mechanism 2, used for traction of the patient's calcaneus; The bracket mechanism 3 is used for installing 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 arranged between the two sets of telescopic support assemblies 4, and a locking assembly 5 arranged on the telescopic support assemblies 4; The locking assembly 5 includes a locking member 6 provided on the telescopic bracket assembly 4 and an anti-falling fine-tuning member 7 provided on the locking member 6; The leg support mechanism 1 is slidably mounted on the first cross bar 301 , and the traction mechanism 2 is slidably mounted on the second cross bar 302 . The leg support mechanism 1 and the traction mechanism 2 are both fixed by locking bolts.

[0029] The first cross bar 301 is arranged above the second cross bar 302, and the two ends of the first cross bar 301 and the second cross bar 302 are fixedly connected to the upper sections of the two groups of telescopic bracket assemblies 4 respectively. The first cross bar 301 and the second cross bar 302 and the telescopic bracket assembly 4 are detachable. According to the patient's condition, a corresponding number of leg support mechanisms 1 and traction mechanisms 2 can be installed. For example, one group is sufficient for a single leg fracture. The two groups of telescopic bracket assemblies 4 are inserted into the fixed intubation at the rear end of the bed. The telescopic bracket assembly 4 adjusts the height up and down through its telescopic characteristics according to the patient's body shape and injury condition, so that the height of the leg support mechanism 1 on the first cross bar 301 can be adapted to different patients.

[0030] After the telescopic bracket assembly 4 is initially telescopically adjusted, the height of the adjustment lock is generally an approximate height. Although the height is suitable for most patients, there are still a small number of patients who will feel uncomfortable due to physical reasons. At this time, when fine-tuning the height, if the patient's legs are not placed on the leg support mechanism 1 and adjusted synchronously with the telescopic bracket assembly 4, it is difficult to find the best supporting position and multiple adjustments are required. If the patient's legs are placed on the leg support mechanism 1 and adjusted synchronously with the telescopic bracket assembly 4, the current telescopic bracket assembly 4 will drop sharply under the action of gravity after being unlocked, thereby causing secondary injury to the patient's legs. Although it can be supported manually, the risk of it slipping out of the hand still exists. Therefore, when adjusting the height, the patient's legs are not placed on the leg support mechanism 1, and then multiple adjustments are made to reach the optimal height, which is more troublesome to operate.

[0031] The present invention provides an anti-fall fine-adjustment part 7 on the locking part 6. After the initial height adjustment, the anti-fall fine-adjustment part 7 is used to achieve fine adjustment of the height. During the fine adjustment, the sudden contraction of the telescopic bracket assembly 4 is avoided, thereby preventing the patient's injured leg from suffering secondary injury.

[0032] The telescopic bracket assembly 4 is composed of a plug-in sleeve 401 and a telescopic rod 402, and the telescopic rod 402 is movably plugged into the plug-in sleeve 401. A sliding groove 403 is opened on one side of the plug-in 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 surface 404 , and the telescopic rod 402 is limited by the wedge surface 404 correspondingly contacting the anti-fall fine-tuning member 7 of the locking assembly 5 .

[0033] The plug-in sleeve 401 is plugged and fixed to the fixed plug-in sleeve at the tail end of the bed. The first cross bar 301 and the second cross bar 302 are fixedly installed on the end of the telescopic rod 402 away from the plug-in sleeve 401. The locking component 5 slides in the slide groove 403 to drive the anti-fall fine-tuning part 7 to move up and down, thereby resisting and driving the telescopic rod 402 in the plug-in sleeve 401 to perform telescopic operations up and down. After the initial adjustment of the position, the position of the anti-fall fine-tuning part 7 is locked by the locking part 6 in the locking component 5. The end of the anti-fall fine-tuning part 7 after limiting the position resists the telescopic rod 402 passes through the wedge surface 404, so that the telescopic rod 402 cannot move further downward in the plug-in sleeve 401, thereby realizing the telescopic adjustment of the telescopic bracket assembly 4. After the preliminary position adjustment is determined, if the patient feels uncomfortable, the anti-fall fine-tuning member 7 adjusts the position of its end to contact the wedge surface 404 on the telescopic rod 402, thereby realizing fine-tuning of the height. During fine-tuning, the end of the anti-fall fine-tuning member 7 always contacts the wedge surface 404 of the telescopic rod 402, thereby preventing sudden falling during fine-tuning.

[0034] The locking member 6 includes a slider 601 slidably mounted in the slide groove 403 , a clamping block 602 disposed at one end of the slider 601 , a threaded column 603 disposed at the other end of the slider 601 , and a threaded sleeve 604 threadedly sleeved on the outside of the threaded column 603 ; The slider 601 , the clamping block 602 and the threaded column 603 are integrally formed, and a threaded hole 605 is provided through the axis of the slider 601 , the clamping block 602 and the threaded column 603 , and the anti-fall fine-tuning piece 7 and the threaded hole 605 are thread-matched.

[0035] The clamping block 602 is arranged at one end of the slider 601 close to the plug-in sleeve 401 and is located inside the plug-in sleeve 401. The threaded column 603 is arranged 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 plug-in sleeve 401. The threaded sleeve 604 is threadedly connected to the threaded column 603 extending through the slide groove 403 to the outside of the plug-in sleeve 401. The locking of the locking member 6 is achieved by rotating the threaded sleeve 604 and then pulling the threaded column 603 toward the outside of the plug-in sleeve 401 under the limit of the slider 601, thereby driving the clamping block 602 to fit the inner wall of the plug-in sleeve 401. When the clamping block 602 and the threaded sleeve 604 fit and clamp the inner and outer walls of the plug-in sleeve 401, the position is locked.

[0036] It should be noted that when adjusting the telescopic bracket assembly 4, the locking member 6 is in the unlocked state. In the unlocked state, the threaded sleeve 604 and the clamping block 602 do not fit the inner and outer walls of the plug-in sleeve 401, and the slider 601 cannot be separated from the slide groove 403.

[0037] The anti-fall fine-tuning member 7 is a bolt rod, one end of the bolt rod contacting the wedge 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 screwed into the threaded hole 605, and its ball head end passes through the threaded hole 605 and extends to the inside of the plug-in sleeve 401, and is located at the middle end of the wedge surface 404. Three groups of hand-shift rods 701 are provided. The setting of the hand-shift rods 701 facilitates operation by medical staff. It should be noted that the outside of the threaded sleeve 604 in the locking member 6 is connected to a shift ring through three groups of support rods, and the diameter of the shift ring is larger than the maximum outer ring diameter of the three groups of hand-shift rods 701, so that the drive of the threaded sleeve 604 will not be affected by the setting of the hand-shift rod 701.

[0039] The leg support mechanism 1 includes a telescopic leg support assembly 8 movably arranged on the first cross bar 301, a knee bend board 101 arranged at the end of the telescopic leg support assembly 8 away from the first cross bar 301, and a strap 102 arranged at the end of the knee bend board 101 away from the telescopic leg support assembly 8.

[0040] The strap 102 is provided with Velcro, which is used to bind the patient's thigh near the knee, thereby limiting the leg and preventing the traction mechanism 2 from pulling the calf and causing the patient's leg to deviate, thereby affecting the reduction of the patient's leg bone.

[0041] The telescopic leg support assembly 8 consists of a leg support sleeve 801 and a telescopic leg support plate 802, and the leg support sleeve 801 and the telescopic leg support plate 802 are fixed by locking bolts. A mounting hole 803 that is movably matched with the first cross bar 301 is provided on the leg support sleeve 801, and the leg support sleeve 801 and the first cross bar 301 are fixed by locking bolts.

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

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

[0044] The traction mechanism 2 is used to pull the patient's calcaneus so that the ends of the fractured bone can correspond to each other, thereby achieving healing. When a fracture occurs, the patient's muscles contract, making the fracture ends easily overlap and dislocate. By pulling the calcaneus, the overlapping fracture ends are stretched to correspond. At the same time, there is also an angle offset in the patient's leg bones during a fracture. Therefore, at this time, the movable sleeve 201 can be adjusted to adjust the position of the guide wheel assembly 9, thereby producing a position offset with the leg support mechanism 1. At this time, after one end of the traction assembly 10 is connected to the patient's calcaneus, when it passes through the dislocated guide wheel assembly 9, its traction force has not only the axial tension of the bone, but also the tension of the offset angle, thereby pulling the bone with the deviated angle to correct its position.

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

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

[0047] The traction weight 1003 is appropriately increased or decreased according to the patient's fracture condition in order to ensure that the bone can be repositioned after traction. The traction rope 1001 performs guided traction through the guide wheel assembly 9, and the traction bow 1002 fixes the patient's calcaneus through the Steinmann wire.

[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, and the traction rope 1001 passes through the limiting hole 904 and is vertically arranged.

[0050] After the guide wheel assembly 9 is offset from the leg support mechanism 1 through the movable sleeve 201, and the traction bow 1002 fixes the patient's calcaneus, the traction rope 1001 passes through the guide wheel 902 and the limiting hole 904, and the traction rope 1001 obliquely pulls the calcaneus, thereby making the fracture ends docked and aligned, improving the healing effect. At the same time, the setting of the limiting hole 904 avoids the traction rope 1001 from falling off the guide wheel 902 due to the oblique traction force.

[0051] Working principle: When in use, insert the connecting sleeve into the fixed insert at the end of the bed, and then move the telescopic leg support assembly according to the patient's body position so that it corresponds to the patient's leg position, and then according to the patient's body shape, pull out the telescopic leg support plate in the telescopic leg support assembly so that the knee bend plate fits the raised knee bend, and then tighten the locking bolt on one side of the telescopic leg support assembly to fix the length of the telescopic leg support assembly, and then move the locking part up and down to drive the ball head end of the anti-fall fine-tuning part to contact the telescopic rod, thereby moving up and down. The up and down movement of the telescopic rod realizes the up and down movement of the telescopic leg support assembly, thereby preliminarily adjusting the height position of the telescopic leg support assembly. If the patient feels uncomfortable, the anti-fall fine-tuning part can be adjusted by the screw The adjusting piece changes the depth of the ball head end of the anti-fall fine-tuning piece in the inner cavity of the plug-in sleeve, thereby adjusting the position of the wedge-shaped surface of the telescopic rod against the ball head end of the anti-fall fine-tuning piece, thereby realizing fine-tuning of the height of the telescopic rod up and down to ensure that the patient undergoes traction treatment in the most comfortable posture, and then the knee bend plate and the patient's leg are tied together by a strap to limit it, and then the traction arch is fixed to the patient's calcaneal position by a Steinmann wire, and appropriate traction weights are added according to the patient's condition, and then according to the patient's fracture condition, the movable sleeve is adjusted accordingly through the detection equipment, and the traction direction of the traction rope is changed, so that the ends of the fracture after traction correspond to each other, thereby ensuring the traction reduction effect.

[0052] In all the schemes mentioned above, the connection between the two parts can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and deformations 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 angle adjustable fracture stereoscopic reduction and traction device, characterized by: comprising: A leg support mechanism (1) for supporting the patient's lower leg and fixing the knee end; A traction mechanism (2) for traction of the patient's calcaneus; A bracket mechanism (3) is used for installing the leg support mechanism (1) and the traction mechanism (2); The support mechanism (3) comprises two sets of telescopic support assemblies (4) for installation on a hospital bed, a first crossbar (301) and a second crossbar (302) arranged between the two sets of telescopic support assemblies (4), and a locking assembly (5) arranged on the telescopic support assemblies (4); The locking assembly (5) comprises a locking member (6) provided on the telescopic bracket assembly (4) and an anti-falling fine-tuning member (7) provided 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). The leg support mechanism (1) and the traction mechanism (2) are both fixed by locking bolts.

2. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 1 is characterized by: The telescopic bracket assembly (4) is composed of a plug-in sleeve (401) and a telescopic rod (402), and the telescopic rod (402) is movably plugged into the plug-in sleeve (401). A sliding groove (403) is provided on one side of the plug-in 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 surface (404), and the telescopic rod (402) is limited by the wedge surface (404) correspondingly contacting the anti-fall fine-tuning member (7) of the locking assembly (5).

3. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 2 is characterized by: The locking member (6) includes a slider (601) slidably mounted in the slide groove (403), a clamping block (602) provided at one end of the slider (601), a threaded column (603) provided at the other end of the slider (601), and a threaded sleeve (604) threadedly sleeved on the outside of the threaded column (603); The slider (601), the clamping block (602) and the threaded column (603) are integrally formed, and a threaded hole (605) is provided through the axis of the slider (601), the clamping block (602) and the threaded column (603), and the anti-fall fine-tuning member (7) and the threaded hole (605) are thread-matched.

4. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 3 is characterized by: The anti-fall fine-tuning member (7) is a bolt rod, one end of the bolt rod contacting the wedge surface (404) is provided with a ball head, and the other end of the bolt rod is provided with a hand lever (701).

5. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 4 is characterized by: The leg support mechanism (1) comprises a telescopic leg support assembly (8) movably arranged on the first crossbar (301), a knee bend plate (101) arranged at one end of the telescopic leg support assembly (8) away from the first crossbar (301), and a strap (102) arranged at one end of the knee bend plate (101) away from the telescopic leg support assembly (8).

6. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 5 is characterized by: The telescopic leg support assembly (8) consists of a leg support cover (801) and a telescopic leg support plate (802), and the leg support cover (801) and the telescopic leg support plate (802) are fixed by locking bolts. The leg support cover (801) is provided with a mounting hole (803) that movably matches the first crossbar (301), and the leg support cover (801) and the first crossbar (301) are fixed by locking bolts.

7. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 6 is characterized by: The traction mechanism (2) comprises a movable sleeve (201) movably arranged on the second crossbar (302), a bracket (202) arranged on the movable sleeve (201), a guide wheel assembly (9) rotatably mounted on the bracket (202), and a traction assembly (10) arranged on the guide wheel assembly (9).

8. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 7 is characterized by: The traction assembly (10) comprises a traction rope (1001) arranged on the guide wheel assembly (9), a traction bow (1002) arranged at one end of the traction rope (1001) for fixing the calcaneus, and a traction weight (1003) arranged at the other end of the traction rope (1001).

9. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 8, characterized in that: The guide wheel assembly (9) comprises a guide wheel frame (901) rotatably mounted on the top end of the bracket (202), and a guide wheel (902) arranged on the guide wheel frame (901).

10. The multi-angle adjustable fracture stereoscopic reduction and traction device according to claim 9, characterized in that: 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 vertically arranged.

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