Traction reduction support for orthopedic surgery

Abstract

The traction reduction support for the orthopedic surgery comprises a support body, a hip pad and a perineum column, a transverse pad is installed on the outer wall of the hip pad, an adjusting mechanism used for adjusting the perineum column is arranged on the outer wall of the transverse pad, and the traction reduction support comprises an installation frame fixedly installed on the outer wall of the transverse pad. According to the traction reduction stent, the direction and height of the perineal column can be rapidly and flexibly adjusted before an operation, the whole stent does not need to be replaced like a traditional stent, the preparation time before the operation is saved, the operation efficiency is remarkably improved, a hospital does not need to purchase, store and manage two different types of stents, and the cost is reduced. The medical cost and management difficulty are reduced, the utilization efficiency of medical resources is improved, meanwhile, the state of the perineum column can be flexibly adjusted between the longitudinal direction and the transverse direction according to the body position requirement of a patient, meanwhile, the height of the perineum column can be adjusted, the perineum column support is suitable for various complex orthopedic surgery scenes, and the universality and practicability of the support are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, and specifically to a traction reduction bracket for orthopedic surgery. Background Art

[0002] Orthopedic surgery aims to repair injuries or diseases of bones, joints and other parts to restore the limb function of patients; during orthopedic surgery, accurate fracture reduction and stable limb fixation are key links to ensure the success of the surgery, which is inseparable from the assistance of a professional traction reduction bracket; the traction reduction bracket can provide stable support and precise traction for surgical operations, helping doctors better achieve the reduction and fixation of fracture ends, and is of great significance for improving the quality of surgery and promoting the recovery of patients.

[0003] Currently, the commonly used traction reduction brackets for orthopedic surgery in clinics mainly consist of components such as a bracket main body, a perineum column, limb fixation components, and an adjustment mechanism; among them, the perineum column is one of the key components, which is divided into two types: a longitudinal perineum column and a transverse perineum column according to its setting direction; when in use, the bracket with a longitudinal perineum column is suitable for the patient's lying flat position, and the doctor adjusts parameters such as the height and angle of the bracket through the adjustment mechanism, fixes the patient's limb in a suitable position by using the limb fixation components, and uses the perineum column to provide a reverse supporting force to achieve the traction and reduction of the fracture site; the bracket with a transverse perineum column is used for the patient's side-lying position, and the doctor also completes the surgical operation through the above operation process; such traction reduction brackets meet the needs of surgeries in different positions to a certain extent, provide necessary support for orthopedic surgery, and have played an important role in past clinical practices.

[0004] However, the existing traction reduction brackets have obvious deficiencies in actual applications; due to the complex and diverse surgical situations, factors such as the patient's condition, fracture type, and surgical approach may require the patient's position to be changed temporarily during the surgery; however, the existing longitudinal and transverse perineum column brackets are independent of each other, and when the position needs to be changed, the doctor must replace the corresponding type of bracket; this process is not only time-consuming and laborious, interrupts the surgical process, affects the surgical efficiency, but also may increase the risk of surgical infection due to frequent replacement of instruments; in addition, hospitals need to purchase, store, and manage two different types of brackets separately, increasing the medical cost and management difficulty; therefore, there is an urgent need for a traction reduction bracket that can flexibly adjust the state of the perineum column to adapt to diverse surgical needs and improve the safety and convenience of surgeries. Summary of the Invention

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

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a traction and reduction bracket for orthopedic surgery, comprising a bracket body, a hip pad and a perineum column, wherein a horizontal pad is installed on the outer wall of the hip pad, and an adjustment mechanism for adjusting the perineum column is provided on the outer wall of the horizontal pad, which comprises a mounting frame fixedly installed on the outer wall of the horizontal pad;

[0007] A transmission frame is slidably mounted on the outer wall of the mounting frame, and a support rod rotatably connected to the perineum column is slidably mounted on the top of the transmission frame, a slider slidably connected to the outer wall of the support rod is mounted in the mounting frame, a driver corresponding to the slider is arranged in the mounting frame, and a lifting mechanism corresponding to the transmission frame is mounted on the outer wall of the mounting frame for adjusting the height of the transmission frame;

[0008] The support rod is provided with a linkage mechanism for driving the perineum column to rotate, which includes a transmission shaft rotatably mounted in the end of the support rod and fixedly connected to the end of the perineum column, and a gear fixedly connected to the transmission shaft is rotatably mounted in the end of the support rod, and a rack corresponding to the gear is slidably mounted in the support rod;

[0009] The linkage mechanism also includes a transmission rod slidably installed in the support rod and connected to the rack, and the transmission rod is slidably connected to the transmission frame, and a guide mechanism corresponding to the transmission rod is provided in the transmission frame to ensure that the support rod guides the transmission rod to perform lifting and lowering movements when it slides horizontally.

[0010] By adopting the above technical solution, the direction and height of the perineal column can be adjusted quickly and flexibly before surgery. There is no need to replace the entire stent like a traditional stent, which saves preparation time before surgery and significantly improves surgical efficiency. The hospital does not need to purchase, store and manage two different types of stents separately, which reduces medical costs and management difficulties and improves the utilization efficiency of medical resources. At the same time, the state of the perineal column can be flexibly adjusted between the longitudinal and transverse directions according to the patient's body position requirements, and the height of the perineal column can also be adjusted. It is suitable for various complex orthopedic surgery scenarios and improves the versatility and practicality of the stent.

[0011] Furthermore, the outer wall of the transmission frame is provided with a limit groove corresponding to the slider for limiting the lateral sliding of the slider, and the outer wall of the support rod is provided with an adjustment groove slidably connected to the slider, and the lifting and lowering trajectory of the support rod is limited by the cooperation between the slider and the adjustment groove.

[0012] By adopting the above technical solution, the accuracy and stability of the movement of each component are guaranteed, the adjustment process is carried out in an orderly manner, the deviation or shaking of the components during movement is avoided, and it is ensured that the perineum column can accurately reach the predetermined position during adjustment, thereby improving the reliability and accuracy of the bracket adjustment, thereby improving the safety and stability during surgery.

[0013] Further, the driver includes a lead screw rotatably installed in the limit groove and threadedly connected to the slider, and a motor installed on the outer wall of the mounting frame and connected to the end of the lead screw;

[0014] The lifting mechanism includes an electric push rod installed at the bottom of the mounting frame and a connecting seat installed on the outer wall of the transmission frame, and the connecting seat is connected to the end of the electric push rod.

[0015] By adopting the above technical solutions, the cooperation between the lead screw and the motor can accurately control the movement of the slider, realizing the fine adjustment of the position of the perineum column; the electric push rod and the connecting seat are provided, which can stably adjust the height of the transmission frame, thereby flexibly adjusting the height of the perineum column, facilitating technicians to manufacture and maintain, and also providing guarantee for quickly and accurately adjusting the bracket before the operation, enhancing the practicability and operability of the bracket.

[0016] Further, the guiding mechanism includes a pulley rotatably installed on the outer wall of the bottom end of the transmission rod and a guiding groove opened on the outer wall of the transmission frame, and the width of the guiding groove is greater than the diameter of the pulley.

[0017] By adopting the above technical solutions, it not only ensures the smooth rolling of the pulley but also prevents it from slipping out, ensuring the stable movement of the transmission rod, and further making the process of the linkage mechanism driving the perineum column to rotate stable and reliable, improving the stability and accuracy of the perineum column direction adjustment and meeting the requirements of adjusting the perineum column in different directions before the operation.

[0018] Further, the guiding groove includes a central horizontal groove, a first inclined groove, a bottom horizontal groove, a second inclined groove and a top horizontal groove opened on the outer wall of the transmission frame. The central horizontal groove is opened in the middle of the outer wall of the transmission frame, and the first inclined groove and the second inclined groove are respectively located on both sides of the central horizontal groove. The bottom horizontal groove communicates with the central horizontal groove through the first inclined groove, and the top horizontal groove communicates with the central horizontal groove through the second inclined groove.

[0019] By adopting the above technical solutions, different groove designs determine the movement path of the pulley, and further accurately control the lifting of the transmission rod, realizing the rotational adjustment of the perineum column at different angles.

[0020] Further, the cross pad is detachably connected to the hip pad, used to support the thigh part of the patient, and the top surface of the cross pad is higher than the plane where the top surface of the mounting frame is located.

[0021] By adopting the above technical solutions, it is convenient to replace cross pads of different specifications according to the patient's body type and surgical needs, improving the patient's comfort and support effect. And the top surface of the cross pad is higher than the top surface of the mounting frame, providing installation space for the mounting frame and other components, avoiding interference between components, ensuring the compact structure of the entire bracket and the normal function, and enhancing the versatility and applicability of the bracket.

[0022] Further, the perineum column includes a connection block connected to the transmission shaft, and a support cylinder is installed at the end of the connection block, and an outer protection cylinder is slidably installed on the outer wall of the support cylinder;

[0023] A protective pad is arranged on the outer wall of the outer protection cylinder to improve the comfort of the patient after contacting the outer protection cylinder.

[0024] By adopting the above technical solution, while meeting the support function, the patient experience is fully considered, which helps the patient to maintain a relaxed state during the operation, reduces the interference caused by the discomfort of the instrument, and improves the smoothness of the operation.

[0025] Further, the perineum column further includes a support column fixedly installed inside the bottom of the outer protection cylinder, and an inner support cylinder slidably installed on the outer wall of the support column and fixedly connected to the end of the connection block, and the inner support cylinder is located inside the support cylinder.

[0026] By adopting the above technical solution, the arrangement of the support column and the inner support cylinder enhances the overall structural strength of the perineum column, enabling the perineum column to better withstand the pressure of the patient's body; the inner support cylinder is fixedly connected to the connection block, ensuring the coordinated stability between components, improving the reliability of the bracket during use, and ensuring that the perineum column can stably play a support role during the operation, providing guarantee for the safe progress of the operation.

[0027] Further, a spring is sleeved on the outer wall of the inner support cylinder, and both ends of the spring are respectively connected to the bottom of the outer protection cylinder and the end of the connection block.

[0028] By adopting the above technical solution, this can not only reduce the hard collision between components, extend the service life of the equipment, but also improve the comfort of the patient, avoid the discomfort caused by the adjustment of the perineum column, enhance the patient experience during the operation, and reflect the humanization of the design and the care for the patient.

[0029] Further, a support wheel is rotatably installed at the end of the outer protection cylinder, and the support wheel protrudes from the end of the outer protection cylinder. An isosceles trapezoidal block corresponding to the support wheel is installed in the middle of the top end of the mounting frame for supporting the support wheel.

[0030] By adopting the above technical solution, the support wheel can reduce the friction and wear between the outer protection cylinder and the isosceles trapezoidal block during the adjustment process, extend the service life of the equipment, and reduce the maintenance cost.

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

[0032] 1. The traction reduction bracket of the present invention can quickly and flexibly adjust the direction and height of the perineum column before surgery, without the need to replace the entire bracket like traditional brackets, saving the preparation time before surgery, significantly improving the surgical efficiency. The hospital does not need to purchase, store, and manage two different types of brackets separately, reducing the medical cost and management difficulty, improving the utilization efficiency of medical resources. At the same time, it can flexibly adjust the state of the perineum column between the longitudinal and transverse directions according to the patient's body position requirements, and can also adjust the height of the perineum column, being applicable to various complex orthopedic surgery scenarios, improving the versatility and practicality of the bracket.

[0033] 2. The present invention is provided with a protective pad on the outer wall of the outer protective cylinder of the perineum column, and the spring between the inner support cylinder and the outer protective cylinder provides buffering, which can effectively improve the comfort of the patient when supporting the patient, helping the patient to maintain a better state during the operation. The cooperation between the support wheel and the isosceles trapezoidal block at the top of the mounting frame reduces the friction and wear during the adjustment of the perineum column, extends the service life of the device, and reduces the equipment maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention;

[0035] Figure 2 is a three-dimensional structural schematic diagram of parts such as the buttock pad, transverse pad, mounting frame, transmission frame, etc. of the present invention;

[0036] Figure 3 is a three-dimensional structural schematic diagram of the mounting frame, transmission frame, and support rod after side section of the present invention;

[0037] Figure 4 is a three-dimensional structural schematic diagram of parts such as the mounting frame, electric push rod, and guide groove of the present invention;

[0038] Figure 5 is a three-dimensional structural schematic diagram of the perineum column when the pulley slides inward to one side of the guide groove of the present invention;

[0039] Figure 6 is a three-dimensional structural schematic diagram of the perineum column when the pulley slides inward to the other side of the guide groove of the present invention;

[0040] Figure 7 is a schematic diagram of various states of the pulley sliding in the guide groove of the present invention;

[0041] Figure 8 is a three-dimensional structural schematic diagram of the perineum column after side section of the present invention;

[0042] Figure 9 For the present invention Figure 2 exploded view of the parts.

[0043] In the figure: 1. Bracket body; 2. Hip pad; 3. Horizontal pad; 4. Mounting frame; 41. Transmission frame; 42. Electric push rod; 421. Connecting seat; 43. Slide block; 431. Adjustment groove; 44. Limit groove; 45. Lead screw; 46. Motor; 5. Support rod; 51. Transmission shaft; 52. Gear; 53. Rack; 54. Transmission rod; 55. Pulley; 56. Guide groove; 561. Central horizontal groove; 562. First inclined groove; 563. Bottom horizontal groove; 564. Second inclined groove; 565. Top horizontal groove; 6. Perineum column; 61. Connecting block; 62. Support cylinder; 63. Outer protection cylinder; 64. Support column; 65. Inner support cylinder; 66. Spring; 67. Support wheel. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings 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 construed as a limitation to the present invention.

[0045] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0046] As Figure 1 - Figure 9 shown, the orthopedic surgery traction reduction bracket of the present invention mainly consists of components such as a bracket body 1, a hip pad 2, a horizontal pad 3, a mounting frame 4, a transmission frame 41, a support rod 5, and a perineum column 6;

[0047] Among them, the hip pad 2 is installed on the bracket body 1 and is used to support the patient's buttocks; the horizontal pad 3 is detachably connected to the outer wall of the hip pad 2 to provide support for the patient's thigh part, and the top surface of the horizontal pad 3 is higher than the top surface of the mounting frame 4, which is convenient for the installation and operation of subsequent components. The mounting frame 4 is fixed to the outer wall of the horizontal pad 3 and is an important carrier of the adjustment mechanism, carrying other key components and providing an installation basis for them.

[0048] The present invention discloses an adjustment mechanism, which includes a mounting frame 4, a transmission frame 41, a slide block 43, a driver, and a lifting mechanism, and is used to adjust the direction and height of the perineum column 6;

[0049] Specifically, the transmission frame 41 is slidably installed on the outer wall of the mounting frame 4, and the support rod 5 is slidably installed on the top of the transmission frame 41. The transmission frame 41 provides guidance and support for the movement of the support rod 5;

[0050] Among them, the slide block 43 is installed in the mounting frame 4 and is slidably connected to the outer wall of the support rod 5. By cooperating with the adjustment groove 431, the lifting trajectory of the support rod 5 is restricted to ensure the stability of its movement;

[0051] The driver therein consists of a lead screw 45 and a motor 46. The motor 46 drives the lead screw 45 to rotate, causing the slider 43 to slide horizontally within the limit groove 44, thereby realizing the horizontal movement of the support rod 5 and further adjusting the position of the perineum column 6. The lifting mechanism consists of an electric push rod 42 and a connecting seat 421. When the electric push rod 42 operates, it drives the transmission frame 41 to lift through the connecting seat 421, realizing the adjustment of the height of the perineum column 6, meeting the requirements for the height of the perineum column in different surgeries, and improving the applicability of the bracket.

[0052] The present invention also discloses a linkage mechanism, which is arranged on the support rod 5 and consists of a transmission shaft 51, a gear 52, a rack 53, and a transmission rod 54, and is used to realize the rotation of the perineum column 6;

[0053] Among them, the transmission shaft 51 is rotatably installed inside the end of the support rod 5 and fixedly connected to the end of the perineum column 6, transmitting the rotation of the gear 52 to the perineum column 6;

[0054] Secondly, the gear 52 is fixedly connected to the transmission shaft 51 and meshes with the rack 53, converting the linear motion of the rack 53 into rotation; the rack 53 is slidably installed inside the support rod 5 and connected to the transmission rod 54; the transmission rod 54 is slidably installed inside the support rod 5 and slidably connected to the transmission frame 41. When the support rod 5 slides horizontally, the guiding mechanism inside the transmission frame 41 guides the transmission rod 54 to lift or lower. Through the cooperation of the rack 53 and the gear 52, the transmission shaft 51 is driven to rotate, realizing the rotation of the perineum column 6, enabling the perineum column 6 to flexibly switch between the longitudinal and horizontal directions, adapting to the different body position requirements of patients, and avoiding the inconvenience caused by replacing the bracket.

[0055] The present invention also discloses a guiding mechanism, which includes a pulley 55 and a guiding groove 56;

[0056] Among them, the pulley 55 is rotatably installed on the outer wall of the bottom end of the transmission rod 54 and rolls within the guiding groove 56; the guiding groove 56 consists of a central horizontal groove 561, a first inclined groove 562, a bottom horizontal groove 563, a second inclined groove 564, and a top horizontal groove 565. Through the design of different grooves, the movement of the pulley 55 is guided, and then the lifting or lowering of the transmission rod 54 is controlled, accurately realizing the rotational adjustment of the perineum column 6, and ensuring the accuracy and stability of the perineum column 6 when switching in different directions.

[0057] It should be noted that the operation and shutdown of the motor 46 and the electric push rod 42 in the present invention are both controlled by a control system (the control system is a well-known prior art and will not be elaborated here). The entire operation can be carried out by inputting the actual body type of the patient to operate the operation and shutdown of the motor 46 and the electric push rod 42 through the control system. The entire operation does not require manual operation to adjust the position, angle, etc. of the perineum column 6.

[0058] The perineum column 6 in the present invention is composed of a connecting block 61, a support cylinder 62, an outer protection cylinder 63, a support column 64, an inner support cylinder 65, a spring 66 and a support wheel 67, which provides support for the patient and ensures comfort;

[0059] Among them, the connecting block 61 is connected to the transmission shaft 51 of the perineum column 6, which is the key part for connecting the perineum column 6 with other components;

[0060] The support cylinder 62 is installed at the end of the connecting block 61 to provide support for the outer protection cylinder 63; at the same time, a protective pad is provided on the outer wall of the outer protection cylinder 63, which can improve the comfort when the patient contacts the outer protection cylinder 63;

[0061] And the support wheel 67 is rotatably installed at the end of the outer protection cylinder 63. During the adjustment of the perineum column 6, the support wheel 67 cooperates with the isosceles trapezoidal block at the top of the mounting frame 4 to reduce friction and wear;

[0062] The support column 64 is fixedly installed inside the bottom of the outer protection cylinder 63 to provide support for the inner support cylinder 65; the inner support cylinder 65 is slidably installed on the outer wall of the support column 64 and is located inside the support cylinder 62, and is fixedly connected to the end of the connecting block 61, enhancing the structural stability of the perineum column 6;

[0063] The spring 66 in the perineum column 6 is sleeved on the outer wall of the inner support cylinder 65, and the two ends are respectively connected to the bottom of the outer protection cylinder 63 and the end of the connecting block 61, providing buffering during the adjustment of the perineum column 6 to ensure the comfort of the patient and the stability of the support.

[0064] The working principle of this orthopedic surgery traction reduction bracket is carried out around aspects such as preoperative preparation, direction adjustment and height adjustment of the perineum column, patient support and comfort guarantee, etc. Each component operates in coordination to meet different traction reduction requirements during the operation, specifically as follows:

[0065] Preoperative preparation and initial setting: Before performing orthopedic surgery, medical staff first place the patient on the bracket body 1 and use the buttock pad 2 to support the patient's buttocks. Since the horizontal pad 3 is installed on the outer wall of the buttock pad 2, it provides support for the patient's thigh part; at this time, according to the patient's initial position of lying flat or on the side and the surgical requirements, the components of the traction reduction bracket are initially adjusted;

[0066] Direction adjustment of the perineum column 6: According to the actual needs of the operation, when the patient is in a lying flat state, there is no need to adjust the position of the perineum column. If the patient needs to be in a side-lying state, that is, the direction and position of the perineum column 6 need to be adjusted;

[0067] First, start the driver; the motor 46 starts running, driving the lead screw 45 to rotate. Since the lead screw 45 is threadedly connected to the slider 43 and the slider 43 is located in the limiting groove 44 and is restricted by the limiting groove 44 and cannot rotate with the lead screw 45; when the lead screw 45 rotates, under the action of the lead screw principle, the slider 43 will slide horizontally in the limiting groove 44; as the slider 43 slides in the adjustment groove 431, it will pull the support rod 5 to slide horizontally synchronously through the adjustment groove 431, adjusting the horizontal position of the support rod 5. At the same time, the bottom of the support rod 5 will slide on the top of the transmission frame 41, and the transmission frame 41 will support and restrict the top of the support rod 5, further ensuring the stability of the support rod 5 during horizontal sliding;

[0068] When the support rod 5 moves horizontally; it will drive the perineum column 6 and the transmission rod 54 to move synchronously, starting to adjust the position of the perineum column 6. During this process, the bottom end of the transmission rod 54 will slide in the transmission frame 41, and at the same time, the pulley 55 at its bottom end will roll in the guiding groove 56 on the outer wall of the transmission frame 41;

[0069] Since the guiding groove 56 is composed of a central horizontal groove 561, a first inclined groove 562, a bottom horizontal groove 563, a second inclined groove 564 and a top horizontal groove 565, when the pulley 55 rolls in different grooves during sliding, it will guide the transmission rod 54 to move up and down; the transmission rod 54 is connected to the rack 53, the rack 53 meshes with the gear 52, and the gear 52 is fixedly connected to the transmission shaft 51, and the transmission shaft 51 is fixedly connected to the connecting block 61 at the end of the perineum column 6; therefore, the up and down movement of the transmission rod 54 will drive the transmission shaft 51 to rotate through the rack 53 and the gear 52, thereby realizing the rotation of the perineum column 6, completing the adjustment of the direction of the perineum column 6 from longitudinal to horizontal or from horizontal to longitudinal to adapt to the change of the patient's body position;

[0070] Specifically, when the pulley 55 slides from the central horizontal groove 561 into the first inclined groove 562, the outer wall of the pulley 55 will be in contact with the top surface of the first inclined groove 562. As the pulley 55 continues to slide into the first inclined groove 562, it will cause the pulley 55 to start pulling the transmission rod 54 downward under the guidance of the top surface of the first inclined groove 562, resulting in the rack 53 starting to slide downward, prompting the gear 52 to drive the perineum column 6 to rotate through the transmission shaft 51. When the pulley 55 slides into the bottom horizontal groove 563, at this time, the perineum column 6 is adjusted from the longitudinal state to the horizontal state, so that the perineum column 6 can also support the patient when the patient lies on the side, ensuring the applicable range of this traction reduction bracket;

[0071] When the patient lies on their side towards the other side, the pulley 55 slides from the central transverse groove 561 into the second inclined groove 564. The pulley 55 will first contact the bottom surface of the second inclined groove 564. As the pulley 55 continues to slide, it will cause the pulley 55 to slide upward under the guidance of the bottom surface of the second inclined groove 564 until the pulley 55 slides into the top transverse groove 565. The perineum column 6 will be adjusted to a transverse state facing the other direction, enabling the perineum column 6 to be flexibly adjusted according to the actual side-lying direction of the patient;

[0072] Since the lengths of the bottom transverse groove 563 and the top transverse groove 565 are greater than the sum of the lengths of the central transverse groove 561, the first inclined groove 562, and the second inclined groove 564, when the angle adjustment of the perineum column 6 is completed but the position of the support rod 5 still affects the patient's side-lying, the pulley 55 can be controlled to continue sliding into the bottom transverse groove 563 or the top transverse groove 565 to ensure that the distance between the support rod 5 and the patient's leg can be flexibly adjusted according to the actual usage requirements;

[0073] When it is necessary to adjust the transverse perineum column 6 to a longitudinal state, start the motor 46 according to the above operation. When the pulley 55 is in the bottom transverse groove 563, the pulley 55 slides into the first inclined groove 562. The pulley 55 will return to the central transverse groove 561 under the guidance of the bottom surface of the first inclined groove 562, causing the perineum column 6 to reset. When the pulley 55 is in the top transverse groove 565, the pulley 55 slides into the second inclined groove 564. The pulley 55 will return to the central transverse groove 561 under the guidance of the top surface of the second inclined groove 564, causing the perineum column 6 to reset;

[0074] When the perineum column is in a transverse state and the distance between it and the transverse pad 3 is less than the diameter of the patient's leg and needs to be adjusted, that is, the height of the perineum column 6 needs to be adjusted. At this time, start the lifting mechanism; make the electric push rod 42 start to work, and its end pulls the connecting seat 421. Since the connecting seat 421 is installed on the outer wall of the transmission frame 41, it drives the transmission frame 41 to move upward; the upward movement of the transmission frame 41 drives the connected support rod 5 and the perineum column 6 to rise and fall synchronously, realizing the adjustment of the height of the perineum column 6 to meet the height requirements of the perineum column 6 for different surgical operations, ensuring that the perineum column 6 in this traction reduction bracket can be flexibly adjusted according to the actual usage requirements, further increasing its scope of application; during this process, the slider 43 cooperates with the adjustment groove 431 to limit the lifting trajectory of the support rod 5, so that the support rod 5 can only rise and fall along the direction of the adjustment groove 431, ensuring the stability of the support rod 5 during the lifting process;

[0075] During the operation, the protective pad provided on the outer wall of the outer cylinder 63 of the perineum column 6 can improve the comfort of the patient after contact with the outer cylinder 63;

[0076] During the process of adjusting the perineum column 6 from the longitudinal state to the transverse state, as the perineum column 6 rotates, the supporting wheel 67 slides on the isosceles trapezoidal block. At this time, the supporting wheel 67 is used to prevent friction between the outer protection cylinder 63 and the isosceles trapezoidal block, thereby reducing wear. As the perineum column 6 continues to rotate, the supporting wheel 67 will separate from the isosceles trapezoidal block. At this time, the restriction of the supporting wheel 67 on the outer protection cylinder 63 will be released. Then, the spring 66 will push the outer protection cylinder 63 outwards under the action of its own elastic force, so that the distance between the outer protection cylinder 63 and the connecting block 61 changes. After ensuring that the distance between the support rod 5 and the middle part of the transmission frame 41 becomes larger, the patient's leg can be smoothly placed on the outer protection cylinder 63. During this process, the support cylinder 62 will support the outer protection cylinder 63 to ensure the stability of the outer protection cylinder 63. At the same time, since the pulley 55 is restricted by the corresponding bottom horizontal groove 563 or the top horizontal groove 565 and cannot move up and down, the angle of the perineum column 6 is ensured to be fixed at this time, ensuring that the perineum column 6 can smoothly support the patient's leg;

[0077] During the process of rotating the perineum column 6 from the transverse state to the longitudinal state, as the perineum column 6 slides towards the middle part of the transmission frame 41 following the support rod 5, the supporting wheel 67 at the end of the perineum column 6 will be in contact with the top surface of the mounting bracket 4. As the perineum column 6 continues to rotate, the supporting wheel 67 will push the outer protection cylinder 63 towards the connecting block 61 until the supporting wheel 67 moves to the top of the isosceles trapezoidal block. At this time, the perineum column 6 is adjusted to the longitudinal state, and the outer protection cylinder 63 also returns to the initial state synchronously. During this process, as the distance between the outer protection cylinder 63 and the connecting block 61 decreases, the spring 66 will be in a compressed state for energy storage. During the adjustment of the perineum column 6, the spring 66 sleeved on the outer wall of the inner support cylinder 65 can provide a certain buffer.

[0078] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and are not limitations to the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A traction and reduction bracket for orthopedic surgery, characterized in that: The invention comprises a support body (1), a hip pad (2) and a perineum column (6); a transverse pad (3) is installed on the outer wall of the hip pad (2); and an adjustment mechanism for adjusting the perineum column (6) is provided on the outer wall of the transverse pad (3), and the adjustment mechanism comprises a mounting frame (4) fixedly installed on the outer wall of the transverse pad (3); A transmission frame (41) is slidably mounted on the outer wall of the mounting frame (4), and a support rod (5) rotatably connected to the perineum column (6) is slidably mounted on the top of the transmission frame (41); a slider (43) slidably connected to the outer wall of the support rod (5) is mounted inside the mounting frame (4), a driver corresponding to the slider (43) is provided inside the mounting frame (4), and a lifting mechanism corresponding to the transmission frame (41) is mounted on the outer wall of the mounting frame (4) for adjusting the height of the transmission frame (41); The support rod (5) is provided with a linkage mechanism for driving the perineum column (6) to rotate, comprising a transmission shaft (51) rotatably mounted in the end of the support rod (5) and fixedly connected to the end of the perineum column (6), a gear (52) fixedly connected to the transmission shaft (51) is rotatably mounted in the end of the support rod (5), and a rack (53) corresponding to the gear (52) is slidably mounted in the support rod (5); The linkage mechanism also includes a transmission rod (54) slidably mounted in the support rod (5) and connected to the rack (53), and the transmission rod (54) is slidably connected to the transmission frame (41), and a guide mechanism corresponding to the transmission rod (54) is provided in the transmission frame (41) to ensure that the support rod (5) guides the transmission rod (54) to perform lifting movement when the support rod (5) slides horizontally.

2. The traction and reduction bracket for orthopedic surgery according to claim 1, characterized in that: The outer wall of the transmission frame (41) is provided with a limiting groove (44) corresponding to the slider (43) for limiting the lateral sliding of the slider (43); the outer wall of the support rod (5) is provided with an adjusting groove (431) slidably connected to the slider (43); the lifting and lowering trajectory of the support rod (5) is limited by the cooperation between the slider (43) and the adjusting groove (431).

3. The traction and reduction bracket for orthopedic surgery according to claim 2, characterized in that: The driver comprises a screw rod (45) rotatably mounted in a limiting groove (44) and threadedly connected to a slider (43), and a motor (46) mounted on an outer wall of a mounting frame (4) and connected to an end of the screw rod (45); The lifting mechanism is mounted on an electric push rod (42) at the bottom of the mounting frame (4) and a connecting seat (421) mounted on the outer wall of the transmission frame (41), and the connecting seat (421) is connected to the end of the electric push rod (42).

4. The traction and reduction bracket for orthopedic surgery according to claim 1, characterized in that: The guide mechanism comprises a pulley (55) rotatably mounted on the outer wall of the bottom end of the transmission rod (54) and a guide groove (56) provided on the outer wall of the transmission frame (41), and the width of the guide groove (56) is greater than the diameter of the pulley (55).

5. The traction and reduction bracket for orthopedic surgery according to claim 4, characterized in that: The guide groove (56) comprises a central transverse groove (561), a first inclined groove (562), a bottom transverse groove (563), a second inclined groove (564) and a top transverse groove (565) which are arranged on the outer wall of the transmission frame (41); the central transverse groove (561) is arranged in the middle of the outer wall of the transmission frame (41); the first inclined groove (562) and the second inclined groove (564) are respectively located on both sides of the central transverse groove (561); the bottom transverse groove (563) is communicated with the central transverse groove (561) through the first inclined groove (562); and the top transverse groove (565) is communicated with the central transverse groove (561) through the second inclined groove (564).

6. The traction and reduction bracket for orthopedic surgery according to claim 1, characterized in that: The transverse pad (3) is detachably connected to the hip pad (2) and is used to support the thigh area of ​​the patient, and the top surface of the transverse pad (3) is higher than the plane where the top surface of the mounting frame (4) is located.

7. The traction and reduction bracket for orthopedic surgery according to claim 1, characterized in that: The perineum column (6) comprises a connecting block (61) connected to the transmission shaft (51), a supporting tube (62) is installed at the end of the connecting block (61), and an outer protective tube (63) is slidably installed on the outer wall of the supporting tube (62); The outer wall of the outer protective tube (63) is provided with a protective pad, which is used to improve the comfort of the patient after contact with the outer protective tube (63).

8. The traction and reduction bracket for orthopedic surgery according to claim 7, characterized in that: The perineum column (6) also includes a support column (64) fixedly installed at the bottom of the outer protective tube (63), and an inner support tube (65) fixedly connected to the end of the connecting block (61) is slidably installed on the outer wall of the support column (64), and the inner support tube (65) is located inside the support tube (62).

9. The traction and reduction bracket for orthopedic surgery according to claim 8, characterized in that: The outer wall of the inner support tube (65) is sleeved with a spring (66), and the two ends of the spring (66) are respectively connected to the bottom of the outer protective tube (63) and the end of the connecting block (61).

10. The traction and reduction bracket for orthopedic surgery according to claim 7, characterized in that: A support wheel (67) is rotatably mounted on the end of the outer casing (63), and the support wheel (67) protrudes from the end of the outer casing (63). An isosceles trapezoidal block corresponding to the support wheel (67) is mounted on the middle of the top end of the mounting frame (4) for supporting the support wheel (67).

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