Rich and radius reduction device for bone surgery and use method thereof

Abstract

The invention relates to the technical field of ulna and radius reduction, and discloses an ulna and radius reduction device for bone surgery and a using method thereof.The ulna and radius reduction device comprises a base, a support is fixedly connected to the side wall of the base, two sliding blocks are slidably connected to the top of the base, and bandages are fixedly connected to the tops of the sliding blocks. A medical worker exerts pulling force on the palm position, the palm and the top end of the front arm are pulled to drive a bandage to move, a sliding block moves synchronously, when the sliding block moves, a sliding toothed bar is driven to move, a gear is driven to rotate while the sliding toothed bar moves, and when the gear rotates, the movable toothed bar moves along with the sliding toothed bar; by means of the structure, the binding band at the tail end of the forearm and the sliding block move, the same force can be applied to the tail end of the arm while pulling force is applied to the front end of the arm of a patient, and accurate alignment of the fracture end can be effectively guaranteed by maintaining the force which is constant in size and horizontal in direction.

Description

Technical Field

[0001] This invention relates to the field of radius and ulna reduction equipment, specifically to a radius and ulna reduction device for orthopedic surgery and its usage method. Background Technology

[0002] The radius and ulna reduction device for orthopedic surgery uses a mechanical structure to achieve controllable traction, angle adjustment and body position fixation of the radius and ulna, replacing manual operation to complete the separation, alignment and correction of the fracture ends, while maintaining the stable state after reduction, providing conditions for subsequent fixation operations;

[0003] In this process, medical staff place the patient on the operating table and, in cooperation with their assistants, grasp the proximal part of the patient's upper arm, hand, or distal part of the forearm, respectively, and apply continuous, uniform, and slow counter-traction in opposite directions. At this time, the forces of the two cannot be kept the same. If the direction of the traction force is inaccurate or the magnitude is mismatched, it may lead to unsatisfactory repositioning or even secondary displacement after fixation. In response to the above problems, the following solutions are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a radius and ulna reduction device for orthopedic surgery, including a base, a bracket fixedly connected to the side wall of the base, two sliding blocks slidably connected to the top of the base, and a strap fixedly connected to the top of the sliding blocks, and further including:

[0005] The traction mechanism is slidably mounted on the inner wall of the base;

[0006] The holding mechanism is slidably disposed on the inner wall of the base;

[0007] The tightening mechanism is rotatably mounted on the outer wall of the base.

[0008] Preferably, the traction mechanism includes:

[0009] The force-applying component is slidably disposed on the inner wall of the base;

[0010] A fixing component is slidably disposed on the inner wall of the force-applying component;

[0011] Before use, medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base in the designated position on the operating table and fix it with the locking device, place the patient on the operating table, adjust the arm position to match the strap, and tighten the strap. At this time, the medical staff apply a pulling force to the palm position, and by pulling the palm and the top of the forearm, the strap is moved and the sliding block moves synchronously. The sliding block is set to slide on the side wall of the bracket.

[0012] Preferably, the maintaining mechanism includes:

[0013] A limiting component is provided, which is slidably disposed on the inner wall of the base;

[0014] The repetitive component is slidably set on the inner wall of the base;

[0015] In this system, while the force-applying component and the fixed component are moving, the repetitive component loses its restraint and is displaced; when the force-applying component moves a certain distance, the restraining component moves.

[0016] Preferably, the tightening mechanism includes:

[0017] The contact component is rotatably mounted on top of the base;

[0018] Comfort component, the comfort component is fixedly installed on the side wall of the contact component;

[0019] In this design, the comfort component rotates simultaneously with the movement of the sliding block.

[0020] Preferably, the force-applying component includes a sliding toothed rod slidably connected to the inner wall of the base, a gear rotatably connected to the inner wall of the base, and a movable toothed rod slidably connected to the inner wall of the base.

[0021] In this process, medical staff apply a pulling force to the palm, which causes the strap to shift by pulling the palm and the top of the forearm. This causes the strap and the sliding block at the end of the forearm to move. The sliding toothed rod and the sliding block are fixedly connected, and the moving toothed rod and the sliding block are also fixedly connected. The top of the sliding toothed rod meshes with a gear, and the bottom of the moving toothed rod meshes with a gear.

[0022] Preferably, the fixing component includes a spring fixedly connected to the inner wall of the sliding toothed rod, and a triangular fixing rod fixedly connected to the outer wall of the spring;

[0023] During the movement, the spring generates elastic force on the brake lever, the triangular fixed rod is slidably connected to the inner wall of the sliding toothed rod, and the triangular fixed rod is positioned with the inclined plane as the opposite side during movement.

[0024] Preferably, the limiting component includes several fixed posts slidably connected to the inner wall of the base, an L-shaped rod slidably connected to the inner wall of the base, and two springs fixedly connected to the outer wall of the L-shaped rod;

[0025] In this process, the triangular fixed rod applies a pushing force to the spring during its movement. When the sliding toothed rod moves to its final distance, the L-shaped rod is forced to move and applies pressure to the spring, thus compressing it. The sliding toothed rod cannot contact the fixed post during its reciprocating motion.

[0026] Preferably, the repetitive assembly includes a metal spring sheet fixedly connected to the inner wall of the base, and a brake rod fixedly connected to the outer wall of the metal spring sheet;

[0027] As the triangular fixing rod moves, it loses its restraint on the brake rod. Ultimately, the brake rod enters the tail slot of the L-shaped rod through the elastic force of the metal spring, thus restraining the L-shaped rod.

[0028] Preferably, the contact assembly includes a push rod fixedly connected to the outer wall of the sliding block, two fixed rods fixedly connected to the top of the base, and a rotating block rotatably connected to the outer wall of the fixed rods;

[0029] The device has a symmetrical structure on both sides. When the sliding block moves, the rotating block clamps the arm in a way that is narrow at the front and wide at the rear. The push rod is slidably connected to the top of the base. In the initial state, the end of the push rod away from the sliding block is in contact with the side wall of the rotating block. The side of the rotating block near the push rod has several square protrusions to increase the friction with the outer wall of the push rod.

[0030] The comfort components include flexible pads that are fixedly attached to the sidewalls of the rotating block;

[0031] The flexible pad is recessed towards the rotating block at one end near the push rod, so that when the patient's arm is placed into the device, it comes into contact with the non-recessed area of ​​the flexible pad, forcing the end of the flexible pad that contacts the arm to be squeezed, and the recessed area of ​​the flexible pad is forced to bulge.

[0032] A method for using a radius and ulna reduction device in orthopedic surgery includes the following steps:

[0033] S1: Equipment Installation: Medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base in the designated position on the operating table, and fix it with the locking device. At the same time, fix the bracket and sliding block to the outer wall of the base, and fix the strap to the top of the sliding block.

[0034] S2: Start the equipment: Medical staff place the patient on the operating table, adjust the arm position to match the strap, and tighten the strap. At this time, medical staff apply pulling force to the palm position, and reduce the radius by pulling the palm and the top of the forearm, while rotating and shifting.

[0035] The present invention has the following beneficial effects:

[0036] (1) In the process of reducing the radius and ulna, the medical staff applies a pulling force to the palm position. By pulling the palm and the top of the forearm, the strap is displaced and the sliding block is displaced synchronously. When the sliding block moves, the sliding toothed rod moves. When the sliding toothed rod moves, the gear rotates. When the gear rotates, the moving toothed rod moves accordingly, so that the strap and the sliding block at the end of the forearm move. Through the above components, while applying a pulling force to the front of the patient's arm, an equal force can be applied to the end of the arm. By maintaining a constant magnitude and keeping the direction horizontal, the precise alignment of the fracture ends can be effectively ensured.

[0037] (2) The present invention utilizes the characteristics of the sliding toothed rod movement. While the sliding toothed rod moves, it drives the spring and the triangular fixing rod to move synchronously. During the movement, the spring generates elastic force on the brake rod. At the same time, the triangular fixing rod continuously contacts the outer wall of the fixing column during the movement, applying a pushing force and compressing the spring. When the sliding toothed rod stops after moving a certain distance, the elastic force of the spring causes the triangular fixing rod to collide with the fixing column and completes the restriction, preventing the sliding toothed rod from displacing. Through the above components, medical staff can prevent the traction force from suddenly increasing, decreasing or deviating in direction during the rotational displacement process, effectively preventing this stable state from being destroyed and reducing the risk of the fracture ends that have been initially aligned from shifting again.

[0038] (3) This invention utilizes the sliding characteristics of the sliding block. The device has a symmetrical structure on both sides. When the sliding block moves, it drives the push rod to move. When the push rod moves, it applies a thrust to the rotating block, forcing the rotating block to rotate at the outer wall of the fixed rod. This makes the rotating block clamp the arm with a narrow front end and a wide rear end. The push rod is slidably connected to the top of the base. In the initial state, the end of the push rod away from the sliding block is in contact with the side wall of the rotating block. The side of the rotating block near the push rod has several square protrusions, which increase the friction with the outer wall of the push rod. The above components reinforce the fact that when the patient is fixed with a forearm strap, the strap may slide on the surface of the arm because the arm is in a stretched state for a long time, which cannot effectively correct the rotational displacement and leads to the failure of repositioning.

[0039] (4) The present invention utilizes the rotation characteristics of the rotating block. When the rotating block rotates at the outer wall of the fixed rod, it drives the flexible pad to rotate. The end of the flexible pad near the push rod is recessed towards one side of the rotating block, so that when the patient's arm is placed into the device, it contacts the non-recessed area of ​​the flexible pad, forcing the end of the flexible pad that contacts the arm to be squeezed. This causes the squeezed area of ​​the flexible pad to be compressed during contact, so that the recessed area of ​​the flexible pad is forced to bulge. Thus, while the flexible pad rotates, the bulging part of the surface of the flexible pad fully contacts the patient's arm. By increasing the contact area with the patient's arm through the above components and by contacting it through the flexible surface, pressure is dispersed, skin and soft tissue damage is reduced, and patient comfort and compliance are improved. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0043] Figure 3 This is a schematic cross-sectional view of the force-applying component of the present invention;

[0044] Figure 4 This is a cross-sectional schematic diagram of the fixing component and the limiting component of the present invention;

[0045] Figure 5 This is a schematic cross-sectional view of the maintaining mechanism of the present invention;

[0046] Figure 6 This is a schematic diagram showing the positional states of the traction mechanism and the maintaining mechanism of the present invention;

[0047] Figure 7 This is a schematic cross-sectional view of the tightening mechanism of the present invention;

[0048] Figure 8 This is a schematic diagram of the comfort component state of the present invention;

[0049] Figure 9 This is a schematic diagram of the workflow of the present invention.

[0050] The attached diagram lists the components represented by each number as follows:

[0051] In the diagram: 1. Traction mechanism; 11. Force application component; 12. Fixing component; 13. Base; 14. Bracket; 15. Sliding block; 16. Strap; 111. Sliding rack; 112. Gear; 113. Moving rack; 121. Spring; 122. Triangular fixing rod; 2. Maintaining mechanism; 21. Limiting component; 22. Repetitive component; 211. Fixing column; 212. L-shaped rod; 213. Spring 1; 221. Metal spring; 222. Brake rod; 3. Tightening mechanism; 31. Contact component; 32. Comfort component; 311. Push rod; 312. Fixing rod; 313. Rotating block; 321. Flexible pad. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1, please refer to Figure 1 - Figure 7This invention relates to a reduction device for the radius and ulna in orthopedic surgery, comprising a base 13, a bracket 14 fixedly connected to the side wall of the base 13, two sliding blocks 15 slidably connected to the top of the base 13, and a strap 16 fixedly connected to the top of the sliding blocks 15, and further comprising:

[0054] The traction mechanism 1 is slidably disposed on the inner wall of the base 13;

[0055] The holding mechanism 2 is slidably disposed on the inner wall of the base 13;

[0056] The tightening mechanism 3 is rotatably mounted on the outer wall of the base 13.

[0057] Traction mechanism 1 includes:

[0058] Force application component 11 is slidably disposed on the inner wall of base 13;

[0059] The fixing component 12 is slidably disposed on the inner wall of the force-applying component 11;

[0060] Before use, medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base 13 in the designated position on the operating table and fix it with the locking device, place the patient on the operating table, adjust the arm position to match the strap 16, and tighten the strap 16. At this time, the medical staff apply a pulling force to the palm position, and by pulling the palm and the top of the forearm, the strap 16 is displaced, the sliding block 15 is displaced synchronously, and the force application component 11 is moved, the fixing component 12 follows the movement, and the sliding block 15 is slidably set on the side wall of the bracket 14.

[0061] Maintenance mechanism 2 includes:

[0062] Restriction component 21 is slidably disposed on the inner wall of base 13;

[0063] The repetitive component 22 is slidably disposed on the inner wall of the base 13;

[0064] During the movement of the force-applying component 11 and the fixed component 12, the repetitive component 22 loses its restraint and moves, and the fixed component 12 comes into contact with the restraining component 21. When the force-applying component 11 moves a certain distance, it comes into contact with the restraining component 21, forcing the restraining component 21 to move. At this time, the restraining component 21 comes into contact with the repetitive component 22 and is restrained by the repetitive component 22.

[0065] Tightening mechanism 3 includes:

[0066] Contact component 31 is rotatably mounted on top of base 13;

[0067] Comfort component 32 is fixedly disposed on the side wall of contact component 31;

[0068] As the sliding block 15 moves, it forces the contact component 31 to rotate, and the comfort component 32 rotates in tandem with the contact component 31.

[0069] Example 2, please refer to Figure 3 - Figure 9 The present invention is a device for repositioning the radius and ulna in orthopedic surgery. Based on the first embodiment, the force application component 11 includes a sliding toothed rod 111 slidably connected to the inner wall of the base 13, a gear 112 rotatably connected to the inner wall of the base 13, and a movable toothed rod 113 slidably connected to the inner wall of the base 13.

[0070] Before use, medical staff first confirm the device model and check the compatibility of the operating table interface. The base 13 is then firmly installed in the designated position on the operating table and secured with a locking device. The patient is placed on the operating table, and the arm position is adjusted to match the strap 16. The strap 16 is then tightened. At this time, the medical staff applies a pulling force to the palm, which causes the strap 16 to shift by pulling the palm and the top of the forearm. The sliding block 15 shifts synchronously, causing the sliding gear 111 to move. As the sliding gear 111 moves, the gear 112 rotates. As the gear 112 rotates, the moving gear 113 moves accordingly, causing the strap 16 and the sliding block 15 at the end of the forearm to move. The sliding gear 111 and the sliding block 15 are fixedly connected, and the moving gear 113 and the sliding block 15 are also fixedly connected. The top of the sliding gear 111 meshes with the gear 112, and the bottom of the moving gear 113 meshes with the gear 112.

[0071] The fixing component 12 includes a spring 121 fixedly connected to the inner wall of the sliding toothed rod 111, and a triangular fixing rod 122 fixedly connected to the outer wall of the spring 121.

[0072] As the sliding rack 111 moves, it drives the spring 121 and the triangular fixed rod 122 to move synchronously. During the movement, the spring 121 generates elastic force on the brake rod 222. The triangular fixed rod 122 is slidably connected to the inner wall of the sliding rack 111, and the inclined plane is the opposite side of the triangular fixed rod 122 during the movement.

[0073] The limiting component 21 includes several fixed posts 211 that are slidably connected to the inner wall of the base 13, an L-shaped rod 212 that is slidably connected to the inner wall of the base 13, and two springs 213 that are fixedly connected to the outer wall of the L-shaped rod 212.

[0074] During the movement of the triangular fixed rod 122, it continuously contacts the outer wall of the fixed post 211, while simultaneously applying a pushing force and compressing the spring 121. When the sliding toothed rod 111 stops after moving a certain distance, the collision between the triangular fixed rod 122 and the fixed post 211 completes the restriction, preventing the sliding toothed rod 111 from displacing. When the sliding toothed rod 111 moves to the final distance, it contacts the L-shaped rod 212 and applies a pushing force to the L-shaped rod 212, causing the L-shaped rod 212 to move under force and apply pressure and compression to the spring 213. While the L-shaped rod 212 moves, it drives several fixed posts 211 to move, so that the sliding toothed rod 111 cannot contact the fixed posts 211 during the reciprocating motion. Several fixed posts 211 are fixedly connected to the side wall of the L-shaped rod 212, and the end of the spring 213 away from the L-shaped rod 212 is fixedly connected to the inner wall of the base 13.

[0075] The repetitive assembly 22 includes a metal spring 221 fixedly connected to the inner wall of the base 13, and a brake rod 222 fixedly connected to the outer wall of the metal spring 221.

[0076] When the triangular fixing rod 122 moves, it loses its restraint on the brake rod 222. The elastic force of the metal spring 221 pushes the brake rod 222 to the left. When the L-shaped rod 212 moves under force, it contacts the brake rod 222 and applies a pushing force to the brake rod 222. Finally, the brake rod 222 enters the tail slot of the L-shaped rod 212 through the elastic force of the metal spring 221, thus restraining the L-shaped rod 212. The metal spring 221 is initially in a compressed state, and the brake rod 222 is slidably connected to the inner wall of the base 13.

[0077] The contact assembly 31 includes a push rod 311 fixedly connected to the outer wall of the sliding block 15, and two fixed rods 312 fixedly connected to the top of the base 13. A rotating block 313 is rotatably connected to the outer wall of the fixed rods 312.

[0078] The device has a symmetrical structure on both sides. When the sliding block 15 moves, it drives the push rod 311 to move. When the push rod 311 moves, it applies a pushing force to the rotating block 313, forcing the rotating block 313 to rotate at the outer wall of the fixed rod 312. This makes the rotating block 313 form a clamping effect on the arm that is narrow at the front and wide at the rear. The push rod 311 is slidably connected to the top of the base 13. In the initial state, the end of the push rod 311 away from the sliding block 15 is in contact with the side wall of the rotating block 313. The side of the rotating block 313 near the push rod 311 has several square protrusions to increase the friction with the outer wall of the push rod 311.

[0079] Comfort component 32 includes a flexible pad 321 fixedly connected to the side wall of rotating block 313;

[0080] As the rotating block 313 rotates at the outer wall of the fixed rod 312, it drives the flexible pad 321 to rotate. The end of the flexible pad 321 near the push rod 311 is recessed towards one side of the rotating block 313, so that when the patient's arm is placed into the device, it comes into contact with the non-recessed area of ​​the flexible pad 321, forcing the end of the flexible pad 321 in contact with the arm to be squeezed. The recessed area of ​​the flexible pad 321 is forced to bulge, and the bulging part comes into contact with the patient's arm as the flexible pad 321 rotates.

[0081] A method for using a radius and ulna reduction device in orthopedic surgery includes the following steps:

[0082] S1: Install the equipment: Medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base 13 in the designated position on the operating table, and fix it with the locking device. At the same time, fix the bracket 14 and the sliding block 15 to the outer wall of the base 13, and fix the strap 16 to the top of the sliding block 15.

[0083] S2: Start the equipment: The medical staff places the patient on the operating table, adjusts the arm position to match the strap 16, and tightens the strap 16. At this time, the medical staff applies a pulling force to the palm position, and performs radial reduction by pulling the palm and the top of the forearm, while simultaneously performing rotational displacement.

[0084] One specific application of this embodiment is as follows: Before use, medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base 13 in the designated position on the operating table, and fix it with the locking device. At the same time, fix the bracket 14 and the sliding block 15 to the outer wall of the base 13, fix the strap 16 to the top of the sliding block 15, and check the range of motion and whether the locking function is normal.

[0085] To address the issue that inaccurate direction or mismatched magnitude of traction force during radius and ulna reduction, which could lead to unsatisfactory reduction or even secondary displacement after fixation, medical staff first place the patient on the operating table, adjust the arm position to align with the strap 16, and tighten the strap 16. Then, the medical staff applies traction to the palm, causing the strap 16 to shift by pulling the palm and the top of the forearm. Simultaneously, the sliding block 15 shifts. As the sliding block 15 moves, it drives the sliding gear 111 to move. Simultaneously, the sliding gear 111 rotates, and as the gear 112 rotates, the moving gear 113 follows suit, causing the strap 16 and sliding block 15 at the end of the forearm to move. This assembly ensures that while applying traction to the front of the patient's arm, an equal force is applied to the end of the arm. By maintaining a constant magnitude and horizontal direction, precise alignment of the fracture ends can be effectively ensured.

[0086] Utilizing the movement characteristics of the sliding toothed rod 111, the spring 121 and the triangular fixation rod 122 move synchronously as the sliding toothed rod 111 moves. During the movement, the spring 121 generates elastic force on the brake rod 222. Simultaneously, the triangular fixation rod 122 continuously contacts the outer wall of the fixation post 211, applying a pushing force and compression to the spring 121. When the sliding toothed rod 111 stops after moving a certain distance, the elastic force of the spring 121 causes the triangular fixation rod 122 to collide with the fixation post 211, thus completing the restraint and preventing displacement of the sliding toothed rod 111. Through the above-mentioned components, medical personnel can prevent sudden increases, decreases, or directional deviations in traction force during rotational displacement, effectively preventing the disruption of this stable state and reducing the risk of re-displacement of the initially aligned fracture ends. The risk of misalignment occurs when the triangular fixed rod 122 moves, losing its restraint on the brake rod 222. The elastic force of the metal spring 221 pushes the brake rod 222 to the left. When the sliding toothed rod 111 moves to its final distance, it contacts the L-shaped rod 212 and applies a pushing force to it, causing the L-shaped rod 212 to move under force and apply pressure to the spring 213, compressing it. As the L-shaped rod 212 moves, it drives several fixed posts 211 to move. When the L-shaped rod 212 moves, it contacts the brake rod 222 and applies a pushing force to it. Finally, the brake rod 222 enters the tail slot of the L-shaped rod 212 through the elastic force of the metal spring 221, completing the restraint on the L-shaped rod 212, so that the sliding toothed rod 111 cannot contact the fixed posts 211 during reciprocating motion.

[0087] Utilizing the sliding characteristic of the aforementioned sliding block 15, this device has a symmetrical structure on both sides. When the sliding block 15 moves, it drives the push rod 311 to move. As the push rod 311 moves, it applies a pushing force to the rotating block 313, forcing the rotating block 313 to rotate at the outer wall of the fixed rod 312. This results in the rotating block 313 forming a clamping effect on the arm that is narrow at the front and wide at the rear. The push rod 311 is slidably connected to the top of the base 13. In the initial state, the end of the push rod 311 away from the sliding block 15 is in contact with the side wall of the rotating block 313. The side of the rotating block 313 near the push rod 311 has several square protrusions, which increase the friction with the outer wall of the push rod 311. The above components reinforce the fact that when the patient is fixed with a forearm strap, the strap may slip on the surface of the arm due to the arm being in a stretched state for a long time, which may not effectively correct the rotational displacement and lead to reduction failure.

[0088] Utilizing the rotational characteristics of the aforementioned rotating block 313, the rotating block 313 rotates at the outer wall of the fixed rod 312, simultaneously causing the flexible pad 321 to rotate. The end of the flexible pad 321 near the push rod 311 is recessed towards one side of the rotating block 313, so that when the patient's arm is placed into the device, it comes into contact with the non-recessed area of ​​the flexible pad 321. This forces the end of the flexible pad 321 in contact with the arm to be compressed, causing the compressed area of ​​the flexible pad 321 to be compressed during contact. This forces the recessed area of ​​the flexible pad 321 to bulge, so that while the flexible pad 321 rotates, the bulging part of the surface of the flexible pad 321 makes full contact with the patient's arm. By increasing the contact area with the patient's arm through the aforementioned components and by contacting it through the flexible surface, pressure is dispersed, skin and soft tissue damage is reduced, and patient comfort and compliance are improved.

[0089] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reduction device for radius and ulna in orthopedic surgery, comprising a base (13), a bracket (14) fixedly connected to the side wall of the base (13), two sliding blocks (15) slidably connected to the top of the base (13), and a strap (16) fixedly connected to the top of the sliding blocks (15), characterized in that, Also includes: The traction mechanism (1) is slidably disposed on the inner wall of the base (13); The maintaining mechanism (2) is slidably disposed on the inner wall of the base (13); Tightening mechanism (3) is rotatably disposed on the outer wall of base (13).

2. The radius and ulna reduction device for orthopedic surgery according to claim 1, characterized in that: The traction mechanism (1) includes: Force application component (11), which is slidably disposed on the inner wall of the base (13); A fixing component (12) is slidably disposed on the inner wall of the force-applying component (11); Before use, medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base (13) in the designated position on the operating table and fix it with the locking device, place the patient on the operating table, adjust the arm position to match the strap (16), and tighten the strap (16). At this time, the medical staff apply a pulling force to the palm position, and by pulling the palm and the top of the forearm, the strap (16) is displaced, and the sliding block (15) is displaced synchronously.

3. The radius and ulna reduction device for orthopedic surgery according to claim 2, characterized in that: The maintaining mechanism (2) includes: A limiting component (21) is slidably disposed on the inner wall of the base (13); A repetitive assembly (22) is slidably disposed on the inner wall of the base (13); In this process, while the force-applying component (11) moves, the repetitive component (22) loses its restraint and undergoes displacement.

4. The radius and ulna reduction device for orthopedic surgery according to claim 3, characterized in that: The tightening mechanism (3) includes: Contact assembly (31), which is rotatably disposed on top of base (13); Comfort component (32) is fixedly disposed on the side wall of contact component (31).

5. The radius and ulna reduction device for orthopedic surgery according to claim 4, characterized in that: The force-applying component (11) includes a sliding toothed rod (111) slidably connected to the inner wall of the base (13), a gear (112) rotatably connected to the inner wall of the base (13), and a movable toothed rod (113) slidably connected to the inner wall of the base (13). Among them, the sliding rack (111) and the sliding block (15) are fixedly connected, the moving rack (113) and the sliding block (15) are fixedly connected, the top of the sliding rack (111) meshes with the gear (112), and the bottom of the moving rack (113) meshes with the gear (112).

6. The radius and ulna reduction device for orthopedic surgery according to claim 5, characterized in that: The fixing component (12) includes a spring (121) fixedly connected to the inner wall of the sliding toothed rod (111), and a triangular fixing rod (122) fixedly connected to the outer wall of the spring (121). Among them, the triangular fixing rod (122) is slidably connected to the inner wall of the sliding toothed rod (111), and the triangular fixing rod (122) is facing the inclined plane during movement.

7. The radius and ulna reduction device for orthopedic surgery according to claim 6, characterized in that: The limiting component (21) includes several fixed posts (211) slidably connected to the inner wall of the base (13), an L-shaped rod (212) slidably connected to the inner wall of the base (13), and two springs (213) fixedly connected to the outer wall of the L-shaped rod (212). Among them, several fixed posts (211) are fixedly connected to the side wall of the L-shaped rod (212), and the end of the spring (213) away from the L-shaped rod (212) is fixedly connected to the inner wall of the base (13).

8. The radius and ulna reduction device for orthopedic surgery according to claim 6, characterized in that: The repetitive assembly (22) includes a metal spring (221) fixedly connected to the inner wall of the base (13), and a brake rod (222) fixedly connected to the outer wall of the metal spring (221). Among them, the metal spring (221) is initially in a compressed state, and the brake rod (222) is slidably connected to the inner wall of the base (13).

9. The radius and ulna reduction device for orthopedic surgery according to claim 7, characterized in that: The contact assembly (31) includes a push rod (311) fixedly connected to the outer wall of the sliding block (15), and two fixed rods (312) fixedly connected to the top of the base (13), with a rotating block (313) rotatably connected to the outer wall of the fixed rod (312). The device has a symmetrical structure on both sides. The push rod (311) is slidably connected to the top of the base (13). In the initial state, the end of the push rod (311) away from the sliding block (15) is in contact with the side wall of the rotating block (313). The side of the rotating block (313) close to the push rod (311) has several square protrusions, which increase the friction with the outer wall of the push rod (311). The comfort component (32) includes a flexible pad (321) fixedly connected to the side wall of the rotating block (313). Among them, the flexible pad (321) is recessed towards one side of the rotating block (313) near the end of the push rod (311).

10. A method of using a radius and ulna reduction device for orthopedic surgery, comprising the radius and ulna reduction device for orthopedic surgery as described in claim 9, characterized in that: Includes the following steps, S1: Install the equipment: Medical staff first confirm the device model, check the compatibility of the operating table interface, firmly install the base (13) in the designated position on the operating table, and fix it with the locking device. At the same time, fix the bracket (14) and the sliding block (15) to the outer wall of the base (13), and fix the strap (16) to the top of the sliding block (15). S2: Start the equipment: The medical staff places the patient on the operating table, adjusts the position of the arm to match the strap (16), and tightens the strap (16). At this time, the medical staff applies a pulling force to the palm position, and performs radial reduction by pulling the palm and the top of the forearm, while rotating and shifting.

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