Joint fixing support for orthopedic surgery

Abstract

The invention discloses a joint fixing support for orthopedic surgery, and relates to the field of surgical instruments. The two-way screw drives the clamping plates to symmetrically clamp the thigh, the arc-shaped clamping plates and the silica gel pads are matched with the curve of the thigh, clamping force is evenly distributed, translation and rotation displacement of the thigh in an operation can be effectively limited, a stable operation platform is provided for a doctor, and the device is particularly suitable for high-precision operations such as knee joint replacement and the like; the pressing mechanism enables a pressing plate and an installation base to be rigidly locked through hydraulic transmission, meanwhile, a positioning piece mechanically locks a two-way screw, the screw is prevented from loosening through double guarantee, the locking failure probability is effectively reduced, a driver achieves one-key operation of clamping, locking and disengaging a handle through a crank, and the operation reliability is improved. Only one medical worker is needed to complete fixation in an operation, manpower input is reduced, the risk of mistaken touch in the operation is avoided due to the automatic disengagement design of the handle, and operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of surgical instruments, in particular to a joint fixation bracket for orthopedic surgery. Background Art

[0002] In the field of orthopedic surgery, ensuring precise fixation of the surgical site is one of the key factors for the success of the operation; this is especially true for operations involving joints, such as knee surgery. Due to the high precision required in the surgical operation, even the slightest movement of the patient's joints may affect the surgical effect or even lead to failure of the operation. Stable joint fixation can provide doctors with a clear and stable operating field of view and space, which helps to accurately perform bone repair, joint replacement and other operations, reduce surgical risks, and improve patients' postoperative recovery and quality of life. Therefore, the development of efficient and reliable joint fixation brackets has always been an important topic in the field of orthopedic surgical instruments.

[0003] At present, in orthopedic knee joint surgery, commonly used fixation brackets mainly include support plates for supporting the patient's legs and devices for fixing the patient's foot bones; the support plates are generally flat structures, designed to provide basic support for the patient's legs and put the legs in a suitable surgical position; and the devices for fixing the patient's foot bones mostly use simple straps or buckles to fix the patient's feet in a specific position to limit the movement of the feet during the operation; these existing fixation methods can meet the basic needs of the operation to a certain extent and ensure the smooth progress of the operation.

[0004] However, existing joint fixation brackets of this type have obvious defects. During surgery, it is difficult to effectively ensure the stability of the patient's knee joint by relying solely on the support of the support plate on the leg and the restriction of the foot by the foot bone fixation device. Due to the lack of effective fixation of the thigh area, the patient may experience slight displacement of the knee joint due to involuntary muscle contraction or external force interference during surgery. This is a problem that cannot be ignored for orthopedic surgery that requires highly precise operation. Such displacement may cause the doctor to deviate during operation, affect the accuracy of the operation, and increase the chance of surgical complications. Therefore, it is of great practical significance to develop a joint fixation bracket for orthopedic surgery that, on the basis of the existing one, sets a set of clamps that can clamp the thigh on one side of the knee joint support plate to enhance the fixation effect of the patient's knee joint. It is expected to significantly improve the quality and safety of orthopedic knee surgery. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a joint fixation bracket for orthopedic surgery to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a joint fixation bracket for orthopedic surgery, comprising a mounting seat and a joint support mounted on the surgical bracket, wherein the mounting position and angle of the mounting seat and the joint support can be flexibly set according to the actual surgical requirements;

[0007] An adjustment frame is slidably mounted on the top of the mounting seat, and a reinforcement frame is slidably mounted on the top of the adjustment frame. The reinforcement frame includes a transmission frame slidably mounted on the adjustment frame and a bidirectional screw rotatably mounted in the adjustment frame. The bidirectional screw is threadedly connected to the transmission frame, and a splint is mounted on the transmission frame for clamping the patient's thigh.

[0008] A handle is provided on the outside of the adjustment frame for driving the bidirectional screw to rotate, and the handle and the bidirectional screw are detachably connected;

[0009] A pressing mechanism is provided in the middle of the adjusting frame for fixing the connection between the adjusting frame and the mounting seat;

[0010] The regulating frame is provided with a driver for driving the pressing mechanism. When the driver is in operation, the pressing mechanism is prompted to operate and the handle is pushed outward to release the connection between the handle and the bidirectional screw.

[0011] By adopting the above technical solution, the bidirectional screw drives the splint to symmetrically clamp the thigh. The arc-shaped splint and silicone pad adapt to the thigh curve, and the clamping force is evenly distributed, which can effectively limit the translational and rotational displacement of the thigh during surgery, providing doctors with a stable operating platform. It is especially suitable for high-precision surgeries such as knee replacements, reducing the risk of operational deviation caused by limb movement.

[0012] Furthermore, two sets of slide rails corresponding to the transmission frame are symmetrically provided on the top of the adjustment frame, and a mounting frame is installed on the outer wall of the transmission frame, and a support wheel in contact with the top surface of the adjustment frame is rotatably installed on the mounting frame.

[0013] By adopting the above technical solution, the stability and accuracy of the splint clamping are improved, ensuring the accuracy of the thigh fixation position.

[0014] Furthermore, one end of the bidirectional screw protrudes from the adjustment frame, and the portion of the bidirectional screw protruding from the adjustment frame is not provided with threads, and the handle is slidably mounted on the end of the bidirectional screw protruding from the adjustment frame.

[0015] By adopting the above technical solution, the handle can be quickly installed and disassembled, thereby improving the convenience of operation.

[0016] Furthermore, the handle includes a sliding seat slidably mounted on the outer wall of the end portion of the bidirectional screw protrusion adjustment frame, and a docking frame is installed on the outer wall of the sliding seat. The end portion of the bidirectional screw protrusion adjustment frame is fixedly mounted with a docking block slidably connected to the docking frame, and both the docking frame and the docking block are polygonal in design, and the width inside the docking frame is greater than the width of the docking block.

[0017] By adopting the above technical solution, the polygonal docking structure ensures effective torque transmission and avoids slipping, and the width difference design facilitates quick alignment of the handles, shortens installation time, and improves surgical preparation efficiency.

[0018] Furthermore, a handle is rotatably mounted on the end of the slide, and after the handle is rotated to a perpendicular position to the slide, its outer wall is in contact with the bottom surface of the adjustment frame, and magnets that attract each other are provided inside the handle and the bottom of the adjustment frame.

[0019] By adopting the above technical solution, the handle is magnetically fixed in a vertical position, which avoids the screw from loosening due to accidental touching of the handle during surgery, thereby enhancing operational safety. At the same time, after being fixed, it does not occupy the operating space and keeps the surgical area clean.

[0020] Furthermore, the setting position of the pressing mechanism is staggered with the bidirectional screw, and the pressing mechanism includes a pressing plate slidably mounted on the bottom of the adjusting frame, and a plurality of transmission rods slidably connected to the adjusting frame are mounted on the top of the pressing plate, and a force-bearing piston is mounted on the top of each transmission rod;

[0021] The middle part of the regulating frame is also provided with a guide groove for the sliding of the force piston and an oil storage chamber located above the guide groove and connected to the guide groove, and a pushing piston is installed on the top of the oil storage chamber, and hydraulic oil is provided in the guide groove and the oil storage chamber between the pushing piston and the force piston.

[0022] By adopting the above technical solution, hydraulic transmission realizes rigid locking of the adjustment frame and the mounting seat. The pressure is uniform and stable, and it can withstand large external forces. Compared with traditional mechanical locking, it is more reliable and reduces the risk of displacement during surgery.

[0023] Furthermore, two groups of transmission blocks are symmetrically installed on the top of the pressure plate, which are slidably connected to the adjustment frame and staggered with the bidirectional screw. Positioning plates are installed on the top of the two groups of transmission blocks, and the transmission blocks slide down with the pressure plate to ensure that the positioning plates squeeze and fix the part of the bidirectional screw located in the middle of the adjustment frame.

[0024] By adopting the above technical solution, the transmission block and the positioning piece cooperate to squeeze the middle part of the screw, and double locking prevents the screw from rotating, further improving the fixation reliability and reducing the surgical risks caused by screw loosening.

[0025] Furthermore, the driver includes a screw threadedly mounted on the top of the adjusting frame and rotatably connected to the pushing piston, and the end of the screw protruding from the adjusting frame is slidably connected to a driven wheel rotatably mounted on the adjusting frame, and a tooth plate corresponding to the adjusting frame is slidably mounted on the top of the adjusting frame.

[0026] By adopting the above technical solution, the screw rod and the driven wheel are linked to each other, and power is transmitted through the tooth plate to ensure that the piston moves downward smoothly, realize precise control of the hydraulic system, and improve the stability of the locking process.

[0027] Furthermore, the driver also includes a driving plate slidably mounted on the side wall of the adjustment frame and fixedly connected to the tooth plate, and a push block is mounted on the other end of the driving plate and is affixed to the end of the docking frame, and the sliding length of the push block is greater than the thickness of the docking block.

[0028] By adopting the above technical solution, the driving plate links the push block to push the handle out of the way, realizing the synchronous operation of "locking and disengaging", avoiding misoperation, simplifying the process, and improving the safety and efficiency of operations during surgery.

[0029] Furthermore, a moving gear is rotatably mounted on the outer wall of the adjustment frame, a tooth groove corresponding to the moving gear is opened on the outer wall of the driving plate, and a crank is mounted on the outer end of the moving gear.

[0030] By adopting the above technical solution, the dynamic gear and the tooth groove cooperate to amplify the driving force, the crank operation is labor-saving and convenient, and the locking and unlocking states can be quickly switched, shortening the operation time and adapting to the needs of rapid adjustments during surgery.

[0031] In summary, the present invention mainly has the following beneficial effects:

[0032] 1. The present invention uses a bidirectional screw-driven splint to symmetrically clamp the thigh. The arc-shaped splint and the silicone pad adapt to the thigh curve, and the clamping force is evenly distributed, which can effectively limit the translation and rotational displacement of the thigh during surgery, providing doctors with a stable operating platform. It is especially suitable for high-precision surgeries such as knee replacements, reducing the risk of operational deviation due to limb movement. The downward pressing mechanism rigidly locks the pressure plate and the mounting seat through hydraulic transmission. At the same time, the positioning piece mechanically locks the bidirectional screw, which provides double protection to prevent the screw from loosening and effectively reduces the probability of locking failure. The driver realizes the one-button operation of "clamping, locking and disengaging the handle" through the crank. Only one medical staff member is needed to complete the fixation during the operation, reducing manpower input, and the automatic disengagement design of the handle avoids the risk of accidental touch during the operation, thereby improving operational safety.

[0033] 2. The adjustment frame of the present invention can slide horizontally along the mounting seat to adapt to the thigh positioning requirements of patients of different heights; the clamping spacing of the splint can be continuously adjusted within a limited range by a bidirectional screw, which is compatible with different leg circumferences from children to adults, and the versatility of the bracket is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention after installation;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting base, adjustment frame, reinforcement frame, handle and other components of the present invention;

[0036] Figure 3 This is a schematic diagram of the three-dimensional structure of the reinforcement frame and handle of the present invention;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding seat, docking frame and other components of the present invention after partial section;

[0038] Figure 5 This is a schematic diagram of the three-dimensional structure after the push block of the present invention separates the docking frame from the docking block;

[0039] Figure 6 Schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention;

[0040] Figure 7 Schematic diagram of the three-dimensional structure of the driver of the present invention;

[0041] Figure 8 This is a schematic diagram of the three-dimensional structure of the adjustment frame of the present invention after being cut open;

[0042] Figure 9 This is an exploded view of the mounting base, adjustment frame, reinforcement frame, handle and other components of the present invention.

[0043] In the figure: 1. Mounting seat; 10. Joint support; 2. Adjustment frame; 20. Slide rail; 3. Reinforcement frame; 30. Transmission frame; 31. Bidirectional screw; 32. Clamp; 33. Mounting frame; 34. Support wheel; 4. Handle; 40. Slide; 41. Docking frame; 42. Docking block; 43. Turning handle; 5. Pressing mechanism; 51. Oil storage chamber; 52. Pushing piston; 53. Guide groove; 54. Forced piston; 55. Transmission rod; 56. Pressure plate; 57. Transmission block; 58. Positioning piece; 6. Driver; 60. Screw; 61. Driven wheel; 62. Tooth plate; 63. Drive plate; 64. Pushing block; 65. Tooth groove; 66. Moving gear; 67. Crank handle. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0045] This invention discloses a joint fixation brace for orthopedic surgery, designed to address the stability issues associated with insufficient thigh fixation during existing knee surgery. This brace utilizes a coordinated design of mechanical clamping and hydraulic locking to achieve precise fixation and rapid adjustment of the patient's thigh, enhancing the stability and safety of surgical procedures. The following describes an embodiment of the invention based on its overall structure.

[0046] like Figure 1 - Figure 9 As shown, the joint fixation bracket for orthopedic surgery of the present invention mainly consists of a mounting base 1, an adjustment frame 2, a reinforcement frame 3, a handle 4, a pressing mechanism 5 and a driver 6;

[0047] The mounting seat 1 and the joint support 10 can be flexibly set in position and angle according to surgical requirements. The adjustment frame 2 can slide horizontally to adjust the position of the reinforcement frame 3. The reinforcement frame 3 drives the splint 32 to clamp the thigh through the bidirectional screw 31. The downward pressing mechanism 5 cooperates with the driver 6 to realize the hydraulic locking of the adjustment frame 2 and the automatic disengagement of the handle 4.

[0048] The present invention provides a reinforcement frame 3 and a thigh clamping system, which mainly includes:

[0049] Bidirectional screw 31 and clamping plate 32;

[0050] The bidirectional screw 31 drives the transmission frames 30 on both sides to move toward each other along the slide rail 20 through the thread, driving the clamping plate 32 to clamp the thigh;

[0051] Secondly, the splint 32 adopts an arc-shaped design and is equipped with a silicone cushion pad, which increases the contact area while reducing compression damage, adapts to the thigh structure, and ensures uniform and stable clamping;

[0052] Support wheels 34 and mounting bracket 33;

[0053] The transmission frame 30 is installed with a support wheel 34 through the mounting frame 33. The support wheel 34 contacts the top surface of the adjustment frame 2, sharing the force of the transmission frame 30, reducing the vertical pressure of the splint 32 on the thigh, and improving the mechanical stability during clamping;

[0054] The handle 4 of the present invention engages with the docking block 42 at the end of the bidirectional screw 31 through the slide 40 and the docking frame 41. The polygonal design ensures effective torque transmission. When the handle 43 is rotated to a vertical position, it is fixed by a magnet to prevent accidental contact during surgery that may cause the screw to rotate, thereby improving operational safety.

[0055] The present invention provides hydraulic locking of the pressing mechanism 5;

[0056] The driver 6 drives the screw 60 to drive the piston 52 to squeeze the hydraulic oil in the oil storage chamber 51. The hydraulic oil pushes the force-bearing piston 54 through the guide groove 53, so that the pressure plate 56 is close to the mounting seat 1, achieving rigid locking of the adjustment frame 2. At the same time, the transmission block 57 drives the positioning piece 58 to squeeze the middle part of the bidirectional screw 31, and the double locking prevents the screw from loosening.

[0057] Shaking the crank 67 will drive the driving gear 66 to rotate, and drive the driving plate 63 to slide through the tooth groove 65, thereby simultaneously achieving two functions: first, pushing the tooth plate 62 to drive the driven wheel 61 to rotate the screw rod 60; second, disengaging the handle 4 from the bidirectional screw 31 through the push block 64, thereby avoiding misoperation after locking and realizing the linkage control of "locking and disengaging";

[0058] The hydraulic system uses the incompressibility of liquid to ensure that the pressure plate 56 is evenly stressed. Compared with traditional mechanical locking, it is more stable and can withstand the external forces caused by accidental collisions or muscle contractions during surgery, reducing displacement errors.

[0059] After the operation, the crank handle 67 is shaken in the opposite direction, and the hydraulic oil flows back to reset the pressure plate 56. At the same time, the push block 64 retracts, and the handle 4 re-engages the bidirectional screw 31 to quickly release the splint 32. The entire disassembly process is short and convenient to operate.

[0060] The working principle of the present invention is as follows: the first step is to clamp and position the patient's thigh. First, the position of the adjustment frame 2 is preliminarily adjusted. Before the operation, the adjustment frame 2 is pushed to slide on the top of the mounting seat 1, and the reinforcement frame 3 is moved to the position corresponding to the patient's thigh, ensuring that the splint 32 is aligned with the part to be fixed. By lateral movement of the adjustment frame 2, the anatomical position differences of different patients' thighs are adapted, thereby improving the versatility of the bracket.

[0061] Subsequently, the handle 43 is rotated, causing the slide 40 to rotate by driving the docking block 42 through the docking frame 41. Due to the polygonal meshing of the docking frame 41 and the docking block 42, the rotational force of the handle 43 is transmitted to the bidirectional screw 31, causing it to rotate; at this time, the bidirectional screw 31 drives the two side transmission frames 30 to move toward each other along the slide rail 20 at the top of the adjustment frame 2 through the thread, driving the splint 32 to begin clamping the patient's thigh;

[0062] During this process, because the two sides or upper and lower parts of the patient's thighs are not completely symmetrical, when the patient is in a side-lying position, one group of splints 32 will first contact the bottom of the patient's thigh. As the two groups of splints 32 continue to move, the splint 32 in contact with the bottom of the patient's thigh cannot continue to advance toward the thigh. At this time, its position will not move relative to the thigh. At this time, the position of the adjustment frame 2 is not fixed, so that it will slide on the downloading mounting seat 1 under the action of the two groups of splints 32, ensuring that the two groups of splints 32 are in contact with the thigh, ensuring that the splints 32 can smoothly clamp the patient's thigh, achieving uniform clamping of the thigh by the splints 32, and pre-fixing the thigh to prevent displacement during the operation;

[0063] In addition, because the position where the splint 32 contacts the patient's thigh is provided with a protective pad such as a silicone pad for cushioning, the pressure on the patient's leg can be effectively reduced. At the same time, the splint 32 is designed as an arc-shaped plate to increase the contact area with the thigh, further improving the clamping effect on the thigh.

[0064] Because the support wheels 34 on the side walls of the transmission frame 30 are in contact with the top surface of the adjustment frame 2, the support wheels 34 cooperate with the adjustment frame 2 to support the transmission frame 30, sharing the support force of the transmission frame 30 on the clamping plate 32;

[0065] The second step requires hydraulic locking of the adjustment frame 2 and the mounting base 1 and separation of the docking frame 41 from the docking block 42. At this time, the crank 67 is shaken to rotate the driven gear 66, which drives the driving plate 63 to slide horizontally through the tooth groove 65, thereby pushing the tooth plate 62 to slide, so that the driven wheel 61 drives the screw rod 60 to start rotating. Since the screw rod 60 and the driven wheel 61 are in a sliding connection, the screw rod 60 will rotate synchronously with the rotation of the driven wheel 61. However, the screw rod 60 and the adjustment frame 2 are threadedly connected, causing the screw rod 60 to move downward.

[0066] Because the screw rod 60 is rotatably connected to the push piston 52, when it moves downward, it will drive the push piston 52 to move downward synchronously, causing the push piston 52 to squeeze the hydraulic oil in the oil storage chamber 51. The hydraulic oil is transmitted to the force piston 54 through the guide groove 53, pushing the transmission rod 55 and the pressure plate 56 to slide downward; the hydraulic transmission makes the pressure plate 56 close to the surface of the mounting base 1, rigidly locking the adjustment frame 2 and the mounting base 1 to avoid the fixation failure caused by loosening of the screw rod. In actual use, a friction pad or other component that increases friction can be provided on the outer wall of the pressure plate 56. This is a well-known technology and will not be described in detail here;

[0067] During this process, the pressing plate 56 will drive the positioning piece 58 to move downward synchronously through the transmission block 57, so that it is in contact with the middle part of the bidirectional screw 31, thereby fixing the bidirectional screw 31 and further reducing the probability of accidental rotation of the bidirectional screw 31;

[0068] When the driving plate 63 moves, it drives the pushing block 64 to synchronously push the docking frame 41 forward, so that the handle 4 is disengaged from the docking block 42 at the end of the bidirectional screw 31. At this time, the handle 4 will not drive the bidirectional screw 31 to rotate even if it is rotated again, thereby reducing the possibility of the bidirectional screw 31 rotating unexpectedly due to the handle 4 being accidentally touched during surgery.

[0069] Then, the handle 43 will drive the slide 40 to rotate to a state perpendicular to the ground under the rotation of its own gravity, and then the handle 43 will be manually rotated to a state perpendicular to the slide 40. At this time, the internal magnet of the handle 43 is attracted to the magnet at the bottom of the adjustment frame 2, fixing the handle 43 in the non-working position.

[0070] The third step is to quickly unlock after the operation, shake the crank 67 in the opposite direction, the driving plate 63 drives the push block 64 to retract, and the pressure plate 56 is lifted under the action of the hydraulic oil reflux, releasing the squeezing lock of the positioning piece 58 on the bidirectional screw 31;

[0071] It should be noted that, in actual application, the reset of the pressing plate 56 can also be performed in conjunction with an elastic member, etc., and can be flexibly selected according to actual use;

[0072] The doctor re-engages the handle 4 with the docking block 42, rotates the handle 43 to reversely drive the bidirectional screw 31, and the splint 32 releases the thigh, sliding the adjustment frame 2 away from the surgical area to complete the bracket removal; the hydraulic system is reset with one button to achieve rapid release of the fixed state, shortening the post-operative cleaning time;

[0073] Through the precise coordination of mechanical and hydraulic systems, the bracket achieves an innovative design of "precise clamping, safe locking, and flexible adjustment", significantly improving the accuracy, stability, and operational efficiency of joint fixation in orthopedic surgery, and providing reliable instrument support for improving surgical quality and patient prognosis.

[0074] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A joint fixation bracket for orthopedic surgery, characterized in that: The surgical support comprises a mounting seat (1) and a joint support (10) mounted on the surgical support. Of course, the mounting positions and angles of the mounting seat (1) and the joint support (10) are flexibly set according to actual surgical requirements. An adjustment frame (2) is slidably mounted on the top of the mounting seat (1), and a reinforcement frame (3) is slidably mounted on the top of the adjustment frame (2), the reinforcement frame (3) comprising a transmission frame (30) slidably mounted on the adjustment frame (2) and a bidirectional screw (31) rotatably mounted in the adjustment frame (2), the bidirectional screw (31) being threadedly connected to the transmission frame (30), and a splint (32) being mounted on the transmission frame (30) for clamping the patient's thigh; A handle (4) for driving the bidirectional screw (31) to rotate is provided on the outside of the adjustment frame (2), and the handle (4) and the bidirectional screw (31) are detachably connected; A pressing mechanism (5) is provided in the middle of the adjusting frame (2) for fixing the connection between the adjusting frame (2) and the mounting seat (1); The regulating frame (2) is provided with a driver (6) for driving the pressing mechanism, and when the driver (6) is in operation, it prompts the pressing mechanism to operate and pushes the handle (4) outwards to release the connection between the handle (4) and the bidirectional screw (31).

2. The joint fixation bracket for orthopedic surgery according to claim 1, characterized in that: The top of the regulating frame (2) is symmetrically provided with two groups of slide rails (20) corresponding to the transmission frame (30), and the outer wall of the transmission frame (30) is provided with a mounting frame (33), and a support wheel (34) in contact with the top surface of the regulating frame (2) is rotatably mounted on the mounting frame (33).

3. The joint fixation bracket for orthopedic surgery according to claim 1, characterized in that: One end of the bidirectional screw (31) protrudes from the adjustment frame (2), and the portion of the bidirectional screw (31) protruding from the adjustment frame (2) is not provided with threads, and the handle (4) is slidably mounted on the end of the bidirectional screw (31) protruding from the adjustment frame (2).

4. The joint fixation bracket for orthopedic surgery according to claim 3, characterized in that: The handle (4) comprises a sliding seat (40) slidably mounted on the outer wall of the end portion of the bidirectional screw (31) protruding from the adjustment frame (2), and a docking frame (41) is mounted on the outer wall of the sliding seat (40), and a docking block (42) is fixedly mounted on the end portion of the bidirectional screw (31) protruding from the adjustment frame (2) and slidably connected to the docking frame (41), and both the docking frame (41) and the docking block (42) are polygonal in design, and the width of the interior of the docking frame (41) is greater than the width of the docking block (42).

5. The joint fixation bracket for orthopedic surgery according to claim 4, characterized in that: A turning handle (43) is rotatably mounted on the end of the slide (40), and after the turning handle (43) is rotated to a state perpendicular to the slide (40), its outer wall is in contact with the bottom surface of the adjustment frame (2), and magnets that attract each other are provided in the turning handle (43) and the bottom of the adjustment frame (2).

6. The joint fixation bracket for orthopedic surgery according to claim 1, characterized in that: The setting position of the pressing mechanism (5) is staggered with the bidirectional screw (31), and the pressing mechanism (5) includes a pressing plate (56) slidably mounted on the bottom of the adjusting frame (2), and a plurality of transmission rods (55) slidably connected to the adjusting frame (2) are mounted on the top of the pressing plate (56), and a force-bearing piston (54) is mounted on the top of each transmission rod (55); The regulating frame (2) is provided with a guide groove (53) for the sliding of the force-bearing piston (54) and an oil storage chamber (51) located above the guide groove (53) and connected to the guide groove (53). A pushing piston (52) is installed on the top of the oil storage chamber (51). Hydraulic oil is provided in the guide groove (53) and the oil storage chamber (51) between the pushing piston (52) and the force-bearing piston (54).

7. The joint fixation bracket for orthopedic surgery according to claim 6, characterized in that: Two groups of transmission blocks (57) are symmetrically mounted on the top of the pressure plate (56), which are slidably connected to the adjustment frame (2) and staggered with the bidirectional screw (31). Positioning pieces (58) are mounted on the tops of the two groups of transmission blocks (57), and the transmission blocks (57) slide down along with the pressure plate (56) to ensure that the positioning pieces (58) squeeze and fix the part of the bidirectional screw (31) located in the middle of the adjustment frame (2).

8. The joint fixation bracket for orthopedic surgery according to claim 6, characterized in that: The driver (6) comprises a screw rod (60) threadedly mounted on the top of the adjustment frame (2) and rotatably connected to the push piston (52), and the end of the screw rod (60) protruding from the adjustment frame (2) is slidably connected to a driven wheel (61) rotatably mounted on the adjustment frame (2), and a tooth plate (62) corresponding to the adjustment frame (2) is slidably mounted on the top of the adjustment frame (2).

9. The joint fixation bracket for orthopedic surgery according to claim 8, characterized in that: The driver (6) further comprises a driving plate (63) slidably mounted on the side wall of the regulating frame (2) and fixedly connected to the tooth plate (62), and a push block (64) abutting against the end of the docking frame (41) is mounted on the other end of the driving plate (63), and the slidable length of the push block (64) is greater than the thickness of the docking block (42).

10. The joint fixation bracket for orthopedic surgery according to claim 9, characterized in that: A movable gear (66) is rotatably mounted on the outer wall of the regulating frame (2), a tooth groove (65) corresponding to the movable gear (66) is provided on the outer wall of the driving plate (63), and a crank (67) is mounted on the outer end of the movable gear (66).

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