A traction system for orthopedic surgery

Abstract

This invention relates to the field of orthopedic surgical aids, specifically to an orthopedic surgical traction system. The system comprises a support plate, a perineal column, and a foot traction brace. The support plate is detachably placed flat on the operating table. The support plate has sequentially arranged back-lying area, perineal limiting area, affected leg support area, and affected foot traction area. The orthopedic patient lies flat on the support plane of the support plate and relies on their own weight to hold the plate in place. The perineal column is detachably installed in the perineal limiting area of ​​the support plate, and its installation position is adjustable. The foot traction brace is detachably installed in the affected foot traction area of ​​the support plate, and its installation position is adjustable. This invention simplifies operation and surgical preparation, reduces manpower requirements, improves surgical efficiency, increases the success rate of fracture reduction, and improves adaptability to meet the needs of patients of different body types. It also reduces costs and has wide applicability.

Description

Technical Field

[0001] This invention relates to the field of orthopedic surgical aids, specifically to an orthopedic surgical traction system. Background Technology

[0002] In orthopedic surgery, especially in the treatment of hip and lower limb fractures, the positioning and traction of the patient during surgery are key factors for surgical success. Currently, traditional orthopedic surgical traction tables are commonly used in clinical practice. These tables typically use complex mechanical structures to fix and traction the patient's affected limb, while providing stability in the intraoperative position. The main structure of a traditional orthopedic surgical traction table includes: a basic operating table system, an abduction frame to fix the patient's healthy limb, a traction frame for traction of the affected limb, and a foot traction device to adjust the patient's shortening and misalignment, used to adjust the rotational misalignment of the affected limb during surgery. Its working principle is to fix the perineum through mechanical devices, apply appropriate traction force and angle adjustment to the distal fracture ends, maintain a good reduction state of the fracture ends during surgery, and provide the surgeon with a clear operating field.

[0003] However, this traditional orthopedic surgical traction bed has many problems and drawbacks in practical application: First, it is complex to operate and requires the assistance of multiple people. When positioning the patient during surgery, after successful anesthesia, the traditional orthopedic surgical traction bed usually requires the cooperation of 4-5 medical staff. The complex structure of the traditional orthopedic surgical traction bed does not fully consider the convenience of clinical operation and individual differences of patients. The process of adjusting the position is time-consuming and laborious, increasing the surgical preparation time. Second, the distal end of the fracture is suspended, leading to poor alignment. In the design of the traditional orthopedic surgical traction bed, the distal end of the fracture is usually suspended. Although the design of the distal end of the fracture being suspended can provide good operating space for the surgeon, when the traction force is insufficient, it may cause the fracture ends to angle downwards, resulting in poor alignment. Excessive traction may cause the fracture ends to separate, affecting the reduction effect of the fracture. Third, the equipment is large and inconvenient to move and operate. The traditional orthopedic surgical traction bed is bulky, occupies operating room space, and is inconvenient to move. At the same time, due to its complex structural design, the maintenance cost is high, and the operation of the equipment requires specialized training, making it difficult to promote its use in small hospitals or medical institutions with limited resources. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an orthopedic surgical traction system that simplifies operation and surgical preparation, reduces manpower requirements, improves surgical efficiency, increases the success rate of fracture reduction, and improves adaptability to meet the needs of patients of different body types, while reducing costs and being widely applicable.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an orthopedic surgical traction system, comprising a support plate, a perineal column, and a foot traction brace. The support plate is detachably placed flat on the operating table. The support plate has a back-lying area, a perineal limiting area, an affected leg support area, and an affected foot traction area arranged sequentially on it. The orthopedic surgical patient lies flat on the support plane of the support plate and relies on their own weight to press down on the support plate. The perineal column is detachably installed at the perineal limiting area of ​​the support plate, and its installation position is adjustable. The perineal column serves to provide abutment and limiting function for the perineum of the orthopedic surgical patient. The affected leg support area of ​​the support plate provides stable support for the distal end of the fractured limb of the orthopedic surgical patient. The foot traction brace is detachably installed at the affected foot traction area of ​​the support plate, and its position is adjustable. The adjustable foot traction brace is used to fix the affected foot of orthopedic surgery patients and apply traction force to the distal end of the fractured limb. The foot traction brace includes an L-shaped support, a fixed mounting base, a movable mounting base, a traction drive mechanism, and a one-way self-locking mechanism. The L-shaped support is used to locally wrap the foot, ankle, and lower leg of the orthopedic surgery patient and is secured by multiple strap components. The movable mounting base is movably connected to the fixed mounting base through a sliding component. The L-shaped support is mounted on the movable mounting base, with the foot end of the L-shaped support facing the support plate and having a traction area for the affected foot. The traction drive mechanism is used to move the movable mounting base relative to the fixed mounting base. The one-way self-locking mechanism is used to provide one-way self-locking for the movement of the movable mounting base and allows the movable mounting base to move away from the fixed mounting base.

[0006] Furthermore, it also includes anti-lateral deviation columns, which are used to limit and prevent lateral deviation of the upper body of orthopedic surgery patients during traction. The anti-lateral deviation columns are detachably installed in the back lying area of ​​the support plate and their installation position is adjustable.

[0007] Furthermore, the perineal column, foot traction brace, and anti-lateral deflection column can all be adjusted in their installation position along the width or length of the support plate.

[0008] Furthermore, the support plate is a perforated plate with a first mounting through hole, a second mounting through hole, and a third mounting through hole. Multiple first mounting through holes are evenly distributed on the support plate in the perineal limiting area. A first mounting post adapted to the first mounting through hole is fixed at the bottom of the perineal column. The first mounting post is detachably inserted into the first mounting through hole. Multiple second mounting through holes are evenly distributed on the support plate in the traction area of ​​the affected foot. A second mounting post adapted to the second mounting through hole is fixed at the bottom of the foot traction brace. The second mounting post is detachably inserted into the second mounting through hole. Multiple third mounting through holes are evenly distributed on the support plate in the back lying area. A third mounting post adapted to the third mounting through hole is fixed at the bottom of the anti-lateral deviation column. The third mounting post is detachably inserted into the third mounting through hole.

[0009] Furthermore, the support plate is rectangular in shape, and a rectangular clearance notch is provided on one side of the support area of ​​the affected leg and the traction area of ​​the affected foot, making the support plate L-shaped. The support plate can be flipped to switch the support planes on its symmetrical sides to accommodate the use of the left and right limbs of orthopedic surgery patients.

[0010] Furthermore, the width of the support plate is adapted to the width of the operating table, and the support plate has at least a back lying area, a perineal restraint area, and an affected leg support area to support the operating table.

[0011] Furthermore, an angle adjustment mechanism is provided between the L-shaped support and the movable mounting base. The angle adjustment mechanism includes a fixed plate, an X-axis rotating plate, an X-axis rotating locking assembly, a Y-axis rotating plate, and a Y-axis rotating locking assembly. The fixed plate is fixedly mounted on the movable mounting base. The X-axis rotating plate is rotatably connected to the fixed plate with the X-axis as the axis through the X-axis rotating locking assembly and can be locked in place. The Y-axis rotating plate is rotatably connected to the X-axis rotating plate with the Y-axis as the axis through the Y-axis rotating locking assembly and can be locked in place. The Y-axis rotating plate is fixedly installed at the bottom of the foot of the L-shaped support.

[0012] Furthermore, the X-axis rotation locking assembly includes a first X-axis ratchet disc, a second X-axis ratchet disc, and an X-axis locking screw. The first X-axis ratchet disc is fixedly mounted on one end of the fixed plate, and the second X-axis ratchet disc is fixedly mounted on one end of the X-axis rotation plate. The first X-axis ratchet disc and the second X-axis ratchet disc are coaxially arranged and can be engaged and locked together by the X-axis locking screw. The Y-axis rotation locking assembly includes a first Y-axis ratchet disc, a second Y-axis ratchet disc, and a Y-axis locking screw. The first Y-axis ratchet disc is fixedly mounted on the other end of the X-axis rotation plate, and the second Y-axis ratchet disc is fixedly mounted on one end of the Y-axis rotation plate. The first Y-axis ratchet disc and the second Y-axis ratchet disc are coaxially arranged and can be engaged and locked together by the Y-axis locking screw.

[0013] Furthermore, the sliding assembly includes a strip-shaped slide rod and a sliding sleeve. The strip-shaped slide rod is rectangular in shape, and the sliding sleeve is fixedly mounted on a fixed mounting base. The sliding sleeve has a sliding hole that matches the strip-shaped slide rod. One end of the strip-shaped slide rod is fixedly mounted on a movable mounting base, and the other end of the strip-shaped slide rod passes through the sliding hole and slides in cooperation with the sliding sleeve. The traction drive mechanism includes a gear, a rack, and a knob. The rack is fixedly mounted on one side surface of the strip-shaped slide rod and is arranged along its length. The sliding sleeve has a drive hole that communicates with the sliding hole and penetrates its left and right sides. One end of the knob's rotating shaft extends into... The gear is located inside the drive hole and is rotatably connected to the sliding sleeve. It is fixedly mounted on the rotating shaft and meshes with the rack. The one-way self-locking mechanism includes a stop plate and an elastic element. The stop plate is hinged to the sliding sleeve through a hinge shaft, and the two ends of the stop plate form a pressing end and a stopping end, respectively. The stopping end of the stop plate is fixedly provided with a stopping point. A slot is provided on one side surface of the sliding sleeve that communicates with the sliding hole and allows the stopping point to pass through. The elastic element is used to always apply an elastic force to the stop plate so that the stopping point and the rack teeth engage.

[0014] As can be seen from the above description, the orthopedic surgical traction system provided by the present invention has the following beneficial effects:

[0015] 1. By placing the support plate directly on the operating table, orthopedic surgery patients can lie flat on the support surface of the support plate and rely on their own weight to press down on the support plate. There is no need for an additional locking mechanism to lock and fix the support plate to the operating table. This makes it easier and more convenient to use, greatly reducing the time required for disassembly and assembly. At the same time, with the use of perineal columns and foot traction braces, it can simplify the positioning and traction operations for orthopedic surgery patients, avoiding the complicated process of multiple medical staff working together to position orthopedic surgery patients. This helps to reduce the manpower and operation time required during surgery and improves surgical efficiency.

[0016] Second, by placing a support plate with a support area for the affected leg, a stable traction platform can be provided, and traction can be performed on a regular operating table. This can provide stable support for the distal end of the fractured limb in orthopedic surgery patients, effectively avoiding the problem of the distal end of the fracture being suspended in the air, thereby ensuring the reasonable distribution of traction force and significantly improving the success rate of fracture reduction.

[0017] Third, the installation positions of the perineal column and foot traction brace on the support plate can be flexibly adjusted, allowing for precise adjustments according to the needs of different patients and meeting the needs of patients of different body types, thus improving the flexibility and adaptability of the surgery. Through the combined use of the support plate, perineal column, and foot traction brace, the installation and preparation time of instruments can be reduced, the surgical preparation process can be simplified, the surgical efficiency can be improved, and the waste of time before surgery can be reduced.

[0018] Fourth, in addition, by using the support plate, perineal column and foot traction brace together, its design is simple and the manufacturing cost is low. It can be used directly with ordinary operating tables without the need for expensive special equipment, which makes it easy to promote and apply widely, especially suitable for medical institutions with limited funds. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an orthopedic surgical traction system according to the present invention.

[0020] Figure 2 This is a three-dimensional exploded view of an orthopedic surgical traction system according to the present invention.

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle.

[0023] Figure 5 This is a partial structural diagram of a foot traction brace.

[0024] Figure 6 This is a three-dimensional structural diagram of a foot traction brace.

[0025] Figure 7 A schematic diagram showing the state of the support tablet when it is placed flat on the operating table.

[0026] In the diagram: 1-Supporting plate; 11-Back lying area; 111-Third mounting through hole; 12-Perineal limiting area; 121-First mounting through hole; 13-Affected leg support area; 131-Fourth mounting through hole; 14-Affected foot traction area; 141-Second mounting through hole; 15-Avoidance notch; 2-Perineal column; 21-First mounting column; 3-Foot traction brace; 31-L-shaped support shell; 311-L-shaped support cavity; 32-Fixed mounting base; 321-Fixed mounting plate; 322-Fixed mounting block; 33-Moving mounting base; 331-Moving mounting plate; 332-Moving mounting block; 34-Traction drive mechanism; 341-Gear; 342-Rack; 343-Knob; 3431-Rotating shaft; 35-One-way self-locking mechanism; 351-Stop pressure plate; 35 11-Stopped tip; 3512-Pressing end; 3513-Stopped end; 352-Elastic element; 353-Hinge shaft; 36-Strap assembly; 37-Sliding assembly; 371-Strip slide bar; 372-Sliding sleeve; 3721-Slot; 3722-Drive hole; 38-Angle adjustment mechanism; 381-Fixing plate; 382-X-direction rotating plate; 383-X-direction rotating locking assembly; 3831-First X-direction ratchet disc; 3832-Second X-direction ratchet disc; 3833-X-direction locking screw; 384-Y-direction rotating plate; 385-Y-direction rotating locking assembly; 3851-First Y-direction ratchet disc; 3852-Second Y-direction ratchet disc; 3853-Y-direction locking screw; 39-Second mounting post; 4-Anti-lateral deviation post; 41-Third mounting post; 5-Operating table. Detailed Implementation

[0027] The present invention will be further described below through specific embodiments.

[0028] like Figures 1 to 7 As shown, the orthopedic surgical traction system of the present invention includes a support plate 1, a perineal column 2, and a foot traction brace 3. The support plate 1 is detachably placed flat on an operating table 5. The support plate 1 is provided with a back lying area 11, a perineal limiting area 12, an affected leg support area 13, and an affected foot traction area 14 arranged sequentially on the support plate 1. The orthopedic surgical patient lies flat on the support plane of the support plate 1 and relies on his / her own weight to press down on the support plate 1. The perineal column 2 is detachably installed on the support plate 1. The perineal limiting area 12 is adjustable in position. The perineal column 2 is used to abut and limit the perineum of the orthopedic surgery patient. The affected leg support area 13 of the support plate 1 is used to provide stable support for the distal end of the fracture of the affected limb of the orthopedic surgery patient. The foot traction brace 3 is detachably installed at the affected foot traction area 14 of the support plate 1 and its installation position is adjustable. The foot traction brace 3 is used to fix the affected foot of the orthopedic surgery patient and apply traction force to the distal end of the fracture of the affected limb.

[0029] After the support plate 1 is placed directly on the operating table 5, the orthopedic surgery patient can lie flat on the support surface of the support plate 1 and rely on their own weight to press down on the support plate 1. No additional locking mechanism is needed to lock the support plate 1 to the operating table 5, making it easier and more convenient to use and greatly reducing assembly and disassembly time. Simultaneously, the use of the perineal column 2 and the foot traction brace 3 simplifies the patient's positioning and traction operations, avoiding the complex process of multiple medical staff working together to position the patient, thus reducing manpower and operation time required during surgery and improving surgical efficiency. The placement of the support plate 1 with the affected leg support area 13 provides a stable traction platform and allows traction to be performed on a regular operating table 5, effectively stabilizing and supporting the distal end of the fractured limb in orthopedic surgery patients. This design avoids the problem of the distal fracture fragment being suspended in the air, thus ensuring a reasonable distribution of traction force and significantly improving the success rate of fracture reduction. The installation positions of the perineal column 2 and the foot traction brace 3 on the support plate 1 can be flexibly adjusted, allowing for precise adjustments based on the needs of different patients and meeting the requirements of patients with different body types, thereby improving the flexibility and adaptability of the surgery. The combined use of the support plate 1, the perineal column 2, and the foot traction brace 3 reduces instrument setup and preparation time, simplifies the surgical preparation process, improves surgical efficiency, and reduces pre-operative time waste. Furthermore, the design of the support plate 1, the perineal column 2, and the foot traction brace 3 is simple and has low manufacturing costs. It can be directly used with a standard operating table 5 without requiring expensive specialized equipment, facilitating widespread promotion and application, and is particularly suitable for medical institutions with limited funds.

[0030] In addition, the fixation of the unaffected limb in orthopedic surgery patients can be combined with the use of abduction braces in existing technologies.

[0031] Preferably, the support plate 1 can be made of a lightweight and high-strength material, such as carbon fiber, to effectively reduce the weight of the support plate 1 and effectively ensure the strength of the support plate 1 so that medical staff can easily move it.

[0032] The orthopedic surgical traction system also includes an anti-lateral deviation column 4, which is used to limit and prevent lateral deviation of the upper body of the orthopedic surgical patient during traction. In this way, during traction, the upper body of the orthopedic surgical patient can be effectively prevented from deflecting to one side with the perineal column 2 as the rotation fulcrum, so as to effectively ensure the traction effect. The anti-lateral deviation column 4 is detachably installed at the back lying area 11 of the support plate 1 and its installation position is adjustable. The installation position of the anti-lateral deviation column 4 on the support plate 1 can be flexibly adjusted to meet the needs of different patients and meet the needs of patients with different body types, thereby improving the flexibility and adaptability of the surgery.

[0033] In addition, the perineal column 2, the foot traction brace 3, and the anti-lateral deviation column 4 can all be adjusted in the width or length direction of the support plate 1, thereby effectively ensuring the flexibility of the installation position adjustment of the perineal column 2, the foot traction brace 3, and the anti-lateral deviation column 4 on the support plate 1, so as to better meet the needs of patients with different body types.

[0034] In addition, both the perineal column 2 and the anti-lateral deviation column 4 have a soft padding layer on their outer circumference to further reduce discomfort during the traction process.

[0035] Preferably, the support plate 1 is a perforated plate with a first mounting through hole 121, a second mounting through hole 141, and a third mounting through hole 111. Multiple first mounting through holes 121 are evenly distributed on the support plate 1 at the perineal limiting area 12. A first mounting post 21, adapted to the first mounting through hole 121, is fixedly provided at the bottom end of the perineal column 2. The first mounting post 21 is detachably inserted into the first mounting through hole 121. Multiple second mounting through holes 141 are evenly distributed on the support plate 1 at the affected foot traction area 14. The foot traction brace 3 has a second mounting post 39 fixedly at its bottom end, which is adapted to the second mounting through hole 141. The second mounting post 39 is detachably inserted into the second mounting through hole 141. Multiple third mounting through holes 111 are evenly distributed on the support plate 1 at the back lying area 11. The anti-lateral deviation post 4 has a third mounting post 41 fixedly at its bottom end, which is adapted to the third mounting through hole 111. The third mounting post 41 is detachably inserted into the third mounting through hole 111. Thus, the foot traction brace 3 has multiple third mounting through holes 111 evenly distributed on its bottom end, which is adapted to the third mounting through hole 111. With the support plate 1 employing a perforated plate structure, and in conjunction with multiple first mounting through holes 121, multiple second mounting through holes 141, and multiple third mounting through holes 111, the perineal column 2 can be directly inserted into the corresponding first mounting through hole 121 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the anti-lateral deviation column 4 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 4 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 3 can be directly inserted into the corresponding second mounting through hole 141 as needed, and the foot traction brace 4 ... The third mounting post 41 is directly inserted into the corresponding third mounting through hole 111, thereby facilitating the flexible adjustment of the installation positions of the perineal post 2, the foot traction brace 3, and the anti-lateral deviation post 4 on the support plate 1. In addition, multiple fourth mounting through holes 131 are evenly distributed on the support plate 1 at the affected leg support area 13. Furthermore, preferably, the first mounting through hole 121, the second mounting through hole 141, the third mounting through hole 111, and the fourth mounting through hole 131 are all distributed in a rectangular array.

[0036] The support plate 1 is rectangular in shape. A rectangular clearance notch 15 is provided on one side of the affected leg support area 13 and the affected foot traction area 14, making the support plate 1 L-shaped. The clearance notch 15 facilitates the placement of the C-arm fluoroscopy equipment. The support plate 1 can be flipped to switch its symmetrical support planes to accommodate the left and right limbs of orthopedic patients. Correspondingly, the first mounting through-hole 121, the second mounting through-hole 141, and the third mounting through-hole 111 all penetrate the two symmetrical support planes on the support plate 1. This gives the support plate 1 a dual-sided universal design, allowing it to directly adapt to the surgical needs of the left and right limbs of orthopedic patients by flipping it. This design also reduces the time spent changing and adjusting instruments, further simplifying the surgical preparation process, improving surgical efficiency, and reducing time wasted due to equipment adjustments before surgery.

[0037] Preferably, the width of the support plate 1 is adapted to the width of the operating table 5. The support plate 1 has at least the back lying area 11, the perineal limiting area 12, and the affected leg support area 13 supported on the operating table 5, thereby ensuring the contact support area between the support plate 1 and the operating table 5. When the orthopedic surgery patient uses his / her own weight to press the support plate 1 onto the operating table 5, the stability of the support plate 1 on the operating table 5 can be effectively ensured.

[0038] The foot traction brace 3 includes an L-shaped support shell 31, a fixed mounting base 32, a movable mounting base 33, a traction drive mechanism 34, and a one-way self-locking mechanism 35. The L-shaped support shell 31 is used to locally wrap the foot, ankle, and lower leg of the patient undergoing orthopedic surgery and is secured by multiple strap components 36. The movable mounting base 33 is movably connected to the fixed mounting base 32 via a sliding component 37. The L-shaped support shell 31 is mounted on the movable mounting base 33. The foot end of the L-shaped support shell 31 faces the support plate 1 and has the affected foot traction area 14. The traction drive mechanism 34 is used to drive the movable mounting base 33 to move relative to the fixed mounting base 32. The one-way self-locking mechanism 35 is used to provide one-way self-locking for the movement of the movable mounting base 33 and allows the movable mounting base 33 to move away from the fixed mounting base 32.

[0039] The sliding component 37 enables a relative sliding connection between the movable mounting base 33 and the fixed mounting base 32, guiding the movement of the movable mounting base 33 relative to the fixed mounting base 32 and effectively ensuring the stability and smoothness of the movable mounting base 33's sliding motion. This, in turn, ensures the stability and smoothness of the L-shaped support shell 31's movement. When the traction drive mechanism 34 moves the movable mounting base 33 relative to the fixed mounting base 32 and away from it, the L-shaped support shell 31 also moves relative to the fixed mounting base 32 and away from it. Simultaneously, the one-way self-locking mechanism 35 prevents the movable mounting base 33 from moving closer to the fixed mounting base 32 during traction, thus preventing the L-shaped support shell 31 from moving closer to the fixed mounting base 32. The overall structure is simple and easy to operate.

[0040] In use, the L-shaped support 31 can be used to locally wrap the foot, ankle, and lower leg of the orthopedic surgery patient and then tightened and fixed by multiple strap components 36. At the same time, the perineal column 2 provides a restraining and limiting effect on the perineum of the orthopedic surgery patient, and the anti-lateral deviation column 4 provides a limiting and anti-lateral deviation effect on one side of the upper body of the orthopedic surgery patient. When the traction drive mechanism 34 moves the L-shaped support 31 away from the perineal column 2, it can provide a corresponding traction effect on the affected limb of the orthopedic surgery patient and provide a continuous and stable traction force to the distal end of the fracture. It is simple to operate, convenient to use, and effectively avoids insufficient or excessive traction force, which is conducive to improving the success rate of fracture reduction.

[0041] Correspondingly, the L-shaped support shell 31 is provided with an L-shaped support cavity 311 that is adapted to the foot, ankle and lower leg of the orthopedic surgery patient, so that the inner surface of the L-shaped support cavity 311 fits better with the foot, ankle and lower leg of the orthopedic surgery patient, which helps to further improve the stability of the connection between the L-shaped support shell 31 and the foot, ankle and lower leg of the patient. In addition, the inner surface of the L-shaped support cavity 311 is fixedly covered with a flexible pad, which is a cotton pad, silicone pad, sponge pad or latex pad, to further improve the comfort when wearing it.

[0042] The strap assembly 36 includes a strap and Velcro. The strap is fixedly connected to one side of the L-shaped support shell 31. The Velcro includes a hook side and a loop side that adhere to each other. The loop side is fixedly provided on one side surface of the strap, and the loop side completely covers one side surface of the strap. The hook side is fixedly provided on the L-shaped support shell 31, thereby facilitating quick connection and separation between the L-shaped support shell 31 and the foot, ankle, and lower leg of the orthopedic surgery patient. Correspondingly, the L-shaped support shell 31 is provided with at least two strap assemblies 36 for binding the lower leg and at least two strap assemblies 36 for binding the foot to effectively ensure the stability of the binding.

[0043] An angle adjustment mechanism 38 is provided between the L-shaped support shell 31 and the movable mounting base 33. The angle adjustment mechanism 38 includes a fixed plate 381, an X-axis rotating plate 382, ​​an X-axis rotating locking assembly 383, a Y-axis rotating plate 384, and a Y-axis rotating locking assembly 385. The fixed plate 381 is fixedly mounted on the movable mounting base 33. The X-axis rotating plate 382 is rotatably connected to the fixed plate 381 about the X-axis axis through the X-axis rotating locking assembly 383 and can be locked. The Y-axis rotating plate 384 is rotatably connected to the X-axis rotating plate 382 about the Y-axis axis through the Y-axis rotating locking assembly 385 and can be locked. The Y-axis rotating plate 384 is fixedly mounted on the bottom of the L-shaped support shell 31. Correspondingly, the Y-axis rotating plate 384 and the L-shaped support shell 31 are locked together by fixing screws. Thus, the X-axis rotating locking assembly 385... The setting of 83 facilitates adjustment of the rotation angle of the L-shaped support shell 31 in the X direction. The setting of the Y-direction rotation locking component 385 facilitates adjustment of the rotation angle of the L-shaped support shell 31 in the Y direction. In addition, the second mounting through hole 141 is circular and the second mounting post 39 is cylindrical. When the second mounting post 39 is inserted into the second mounting through hole 141, the two rotate and cooperate, thereby automatically and adaptively adjusting the rotation angle of the L-shaped support shell 31 in the Z direction. This facilitates better adaptation to the needs of different orthopedic surgical patients, allowing for better adaptation to the placement and traction angle of the affected limb. It also provides more stable fixation of the lower leg, ankle, and foot of the affected limb in orthopedic surgical patients, reducing awkwardness and discomfort during fixation. Alternatively, it allows for convenient adjustment of the external or internal rotation angle of the affected limb during surgery to further ensure the traction effect.

[0044] The X-axis rotation locking assembly 383 includes a first X-axis ratchet disc 3831, a second X-axis ratchet disc 3832, and an X-axis locking screw 3833. One end of the fixing plate 381 is fixedly provided with the first X-axis ratchet disc 3831, and one end of the X-axis rotation plate 382 is fixedly provided with the second X-axis ratchet disc 3832. The first X-axis ratchet disc 3831 and the second X-axis ratchet disc 3832 are coaxially arranged and can be engaged and locked together by the X-axis locking screw 3833. Correspondingly, the first X-axis ratchet disc 3831 has an X-axis through hole in its center, and the second X-axis ratchet disc 3832 has an X-axis threaded hole in its center. Thus, the X-axis lock... The tightening screw 3833 can pass through the X-direction through hole and be threaded into the X-direction threaded hole. Therefore, when the X-direction tightening screw 3833 is tightened, it locks and fixes the first X-direction ratchet disc 3831 and the second X-direction ratchet disc 3832. When the X-direction tightening screw 3833 is loosened, relative rotation between the first X-direction ratchet disc 3831 and the second X-direction ratchet disc 3832 is allowed. Furthermore, a ring of meshing teeth is provided on the abutting side surfaces of both the first X-direction ratchet disc 3831 and the second X-direction ratchet disc 3832 to achieve meshing and engaging between them. The Y-axis rotation locking assembly 385 includes a first Y-axis ratchet disc 3851, a second Y-axis ratchet disc 3852, and a Y-axis locking screw 3853. The first Y-axis ratchet disc 3851 is fixedly mounted on the other end of the X-axis rotating plate 382, ​​and the second Y-axis ratchet disc 3852 is fixedly mounted on one end of the Y-axis rotating plate 384. The first Y-axis ratchet disc 3851 and the second Y-axis ratchet disc 3852 are coaxially arranged and can be engaged and locked together by the Y-axis locking screw 3853. Correspondingly, the first Y-axis ratchet disc 3851 has a Y-axis through hole at its center, and the second Y-axis ratchet disc 3852 has a Y-axis threaded hole at its center. Thus, the Y-axis… The locking screw 3853 can pass through the Y-direction through hole and be threadedly connected to the Y-direction threaded hole. Thus, when the Y-direction locking screw 3853 is tightened, it can lock and fix the first Y-direction ratchet disc 3851 and the second Y-direction ratchet disc 3852. When the Y-direction locking screw 3853 is loosened, relative rotation between the first Y-direction ratchet disc 3851 and the second Y-direction ratchet disc 3852 is allowed. In addition, the mating side surfaces of the first Y-direction ratchet disc 3851 and the second Y-direction ratchet disc 3852 are provided with a ring of meshing teeth to realize the meshing and locking between the first Y-direction ratchet disc 3851 and the second Y-direction ratchet disc 3852.

[0045] The sliding assembly 37 includes a strip-shaped slide rod 371 and a sliding sleeve 372. The strip-shaped slide rod 371 is rectangular, and the sliding sleeve 372 is fixedly mounted on the fixed mounting base 32. The sliding sleeve 372 has a sliding hole that matches the strip-shaped slide rod 371. One end of the strip-shaped slide rod 371 is fixedly mounted on the movable mounting base 33, and the other end of the strip-shaped slide rod 371 passes through the sliding hole and slides in cooperation with the sliding sleeve 372. This allows the movable mounting base 33 and the fixed mounting base 32 to be connected as a whole to a certain extent, and allows relative sliding between the two, with smooth and stable sliding.

[0046] The traction drive mechanism 34 includes a gear 341, a rack 342, and a knob 343. The rack 342 is fixedly disposed on one side surface of the strip slide bar 371 and is arranged along its length. Correspondingly, the rack 342 and the strip slide bar 371 are integrally formed. The slide sleeve 372 has a drive hole 3722 that communicates with the slide hole and penetrates its left and right side surfaces. One end of the rotating shaft 3431 of the knob 343 extends into the drive hole 3722 and is rotatably connected to the slide sleeve 372. The gear 341 is disposed in the drive hole 3722 and fixedly installed. Located on the rotating shaft 3431 and meshing with the rack 342, during operation, the knob 343 can be rotated to drive the gear 341 on the rotating shaft 3431 to rotate. In conjunction with the meshing transmission of the gear 341 and the rack 342, the strip slide bar 371 can be moved relative to the gear 341. This allows the movable mounting base 33 to move relative to the fixed mounting base 32, so that the L-shaped support shell 31 can move relative to the fixed mounting base 32, achieving a traction effect. Its structure is simple and easy to operate.

[0047] In addition, an annular limiting block is fixedly provided on the outer circumferential surface of the rotating shaft 3431, which abuts against one end face of the sliding sleeve 372, and a limiting plate is installed on the top of the rotating shaft 3431, which abuts against the other end face of the sliding sleeve 372. This can play a corresponding left and right limiting role, so as to ensure that the rotating shaft 3431 of the knob 343 will not disengage from the drive hole 3722 of the sliding sleeve 372, and effectively ensure the stability of the rotational connection between the rotating shaft 3431 and the sliding sleeve 372.

[0048] The one-way self-locking mechanism 35 includes a stop plate 351 and an elastic element 352. The stop plate 351 is hinged to the sliding sleeve 372 via a hinge shaft 353, and the two ends of the stop plate 351 form a pressing end 3512 and a stopping end 3513, respectively. A stopping point 3511 is fixedly provided on the stopping end 3513 of the stop plate 351. A slot 3721 is provided on one side surface of the sliding sleeve 372, which communicates with the sliding hole and allows the stopping point 3511 to pass through. The elastic element 352 is used to always apply a force to the stop plate 351 to keep the stopping point 351... 1. The elastic force that engages with the teeth of the rack 342. Preferably, the elastic element 352 is a torsion spring, which is mounted on the hinge shaft 353. One straight torsion arm of the torsion spring abuts against the lower surface of the pressing end 3512 of the stop plate 351, and the other straight torsion arm of the torsion spring is located in the locking hole of the sliding sleeve 372. When the movable mounting base 33 moves towards the side closer to the fixed mounting base 32, the interaction between the teeth on the rack 342 and the stop tip 3511 will cause the stop end 3513 of the stop plate 351 to move downward. The tendency to flip causes the stop point 3511 to lock more tightly within the teeth of the rack 342, thus achieving a stopping effect and providing a one-way self-locking function for the movement of the movable mounting base 33. When the movable mounting base 33 needs to move away from the fixed mounting base 32, the interaction between the teeth on the rack 342 and the stop point 3511 will cause the stop end 3513 of the stop pressure plate 351 to flip upward, causing the stop point 3511 to disengage from the teeth of the rack 342, thereby allowing the movable mounting base 33 to move away from the fixed mounting base 32. 3. Move away from the fixed mounting base 32. In addition, when the pressing end 3512 of the stop plate 351 is pressed, the stopping end 3513 of the stop plate 351 can be tilted upward and the stopping tip 3511 can be disengaged from the teeth of the rack 342, thereby releasing the one-way self-locking effect on the movable mounting base 33, so that the movable mounting base 33 can be moved towards the fixed mounting base 32 under the drive of the traction drive mechanism 34, so that the L-shaped support shell 31 can be moved towards the fixed mounting base 32.

[0049] The fixed mounting base 32 includes a fixed mounting plate 321 and a fixed mounting block 322 fixedly disposed at one end of the fixed mounting plate 321. The second mounting post 39 is fixedly disposed on the bottom surface of the other end of the fixed mounting plate 321. The sliding sleeve 372 is fixedly disposed on the fixed mounting block 322 and the sliding hole passes through the fixed mounting block 322. The movable mounting base 33 includes a movable mounting plate 331 and a movable mounting block 332 fixedly disposed at one end of the movable mounting plate 331. One end of the strip-shaped sliding rod 371 is fixedly disposed on the movable mounting block 332. The fixed plate 381 is fixedly disposed on the top surface of the other end of the movable mounting plate 331 and the fixed plate 381 is arranged perpendicular to the movable mounting plate 331.

[0050] The method of using the orthopedic surgical traction system described in this invention is as follows:

[0051] First, remove the leg support board on the healthy side of the orthopedic surgery patient from the ordinary operating table 5;

[0052] Second, place the support plate 1 flat on the operating table 5;

[0053] Third, the orthopedic surgery patient lies flat on the support plate 1, and the orthopedic surgery patient lies flat on the support plate 1 with at least the shoulders down, and the healthy limb of the orthopedic surgery patient is fixed on the abduction frame on one side of the operating table 5.

[0054] Fourth, depending on the different body types of orthopedic surgery patients, the perineal column 2, foot traction brace 3 and anti-lateral deviation column 4 are installed in appropriate positions on the support plate 1. At this time, the perineal column 2 is in contact with the perineum of the orthopedic surgery patient, and the anti-lateral deviation column 4 is in contact with one side of the upper body of the orthopedic surgery patient.

[0055] Fifth, the lower leg, ankle, and foot of the patient on the affected side of the orthopedic surgery are bound and fixed in the L-shaped support 31 of the foot traction brace 3;

[0056] Sixth, by using the traction drive mechanism 34 to move the L-shaped support shell 31 away from the perineal column 2, the patient's limb can be pulled accordingly, and a continuous and stable traction force can be provided to the distal end of the fracture.

[0057] The above are merely some specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A traction system for orthopedic surgery, characterized in that: The device includes a support plate, a perineal column, and a foot traction brace. The support plate is detachably laid flat on the operating table. The support plate has sequentially arranged back-lying areas, perineal restraint areas, affected leg support areas, and affected foot traction areas. The orthopedic surgery patient lies flat on the support plane of the support plate and uses their own weight to hold it in place. The perineal column is detachably installed at the perineal restraint area of ​​the support plate, and its position is adjustable. The perineal column provides support and restraint for the perineum of the orthopedic surgery patient. The affected leg support area of ​​the support plate provides stable support for the distal end of the fractured limb. The foot traction brace is detachably installed at the affected foot of the support plate. The foot traction brace, with its adjustable installation position, is used to fix the affected foot of an orthopedic surgical patient and apply traction force to the distal end of the fractured limb. The foot traction brace includes an L-shaped support, a fixed mounting base, a movable mounting base, a traction drive mechanism, and a one-way self-locking mechanism. The L-shaped support is used to locally wrap the foot, ankle, and lower leg of the orthopedic surgical patient and is secured by multiple strap components. The movable mounting base is movably connected to the fixed mounting base via a sliding component. The L-shaped support is mounted on the movable mounting base, with one end of the L-shaped support facing the support plate and having the affected foot traction area. The traction drive mechanism is used to move the movable mounting base relative to the fixed mounting base. The one-way self-locking mechanism is used to provide one-way self-locking for the movement of the movable mounting seat and allow the movable mounting seat to move away from the fixed mounting seat. It also includes an anti-lateral deviation column, which is used to limit and prevent lateral deviation of the upper body of the orthopedic surgical patient during traction. The anti-lateral deviation column is detachably installed in the back lying area of ​​the support plate, and its installation position is adjustable. The perineal column, the foot traction brace, and the anti-lateral deviation column can all be adjusted in their installation positions along the width or length direction of the support plate. The support plate is a perforated plate with a first mounting through hole, a second mounting through hole, and a third mounting through hole. Multiple first, second, and third mounting through holes are evenly distributed on the support plate in the perineal limiting area. The support plate has a first mounting through hole, and a second mounting post adapted to the first mounting through hole is fixedly provided at the bottom end of the perineal column. The first mounting post is detachably inserted into the first mounting through hole. Multiple second mounting through holes are evenly distributed on the support plate at the traction area of ​​the affected foot. A second mounting post adapted to the second mounting through hole is fixedly provided at the bottom end of the foot traction brace. The second mounting post is detachably inserted into the second mounting through hole. Multiple third mounting through holes are evenly distributed on the support plate at the back lying area. A third mounting post adapted to the third mounting through hole is fixedly provided at the bottom end of the anti-lateral deviation column. The third mounting post is detachably inserted into the third mounting through hole. The support plate is rectangular in shape.The support plate has a rectangular clearance notch on one side of the affected leg support area and the affected foot traction area, making the support plate L-shaped. The support plate can be flipped to switch the support planes on its symmetrical sides to accommodate the left and right limbs of orthopedic surgery patients.

2. The orthopedic surgical traction system according to claim 1, characterized in that: The width of the support plate is adapted to the width of the operating table, and the support plate has at least the back lying area, the perineal limiting area, and the affected leg support area, which are supported on the operating table.

3. The orthopedic surgical traction system according to claim 1, characterized in that: An angle adjustment mechanism is provided between the L-shaped support and the movable mounting base. The angle adjustment mechanism includes a fixed plate, an X-axis rotating plate, an X-axis rotating locking assembly, a Y-axis rotating plate, and a Y-axis rotating locking assembly. The fixed plate is fixedly mounted on the movable mounting base. The X-axis rotating plate is rotatably connected to the fixed plate about the X-axis axis through the X-axis rotating locking assembly and can be locked in place. The Y-axis rotating plate is rotatably connected to the X-axis rotating plate about the Y-axis axis through the Y-axis rotating locking assembly and can be locked in place. The Y-axis rotating plate is fixedly mounted on the bottom of the L-shaped support.

4. The orthopedic surgical traction system according to claim 3, characterized in that: The X-axis rotation locking assembly includes a first X-axis ratchet disc, a second X-axis ratchet disc, and an X-axis locking screw. The first X-axis ratchet disc is fixedly mounted on one end of the fixed plate, and the second X-axis ratchet disc is fixedly mounted on one end of the X-axis rotation plate. The first X-axis ratchet disc and the second X-axis ratchet disc are coaxially arranged and can be engaged and locked together by the X-axis locking screw. The Y-axis rotation locking assembly includes a first Y-axis ratchet disc, a second Y-axis ratchet disc, and a Y-axis locking screw. The first Y-axis ratchet disc is fixedly mounted on the other end of the X-axis rotation plate, and the second Y-axis ratchet disc is fixedly mounted on one end of the Y-axis rotation plate. The first Y-axis ratchet disc and the second Y-axis ratchet disc are coaxially arranged and can be engaged and locked together by the Y-axis locking screw.

5. The orthopedic surgical traction system according to claim 1, characterized in that: The sliding assembly includes a strip-shaped slide rod and a sliding sleeve. The strip-shaped slide rod is rectangular in shape, and the sliding sleeve is fixedly mounted on the fixed mounting base. The sliding sleeve has a sliding hole adapted to the strip-shaped slide rod. One end of the strip-shaped slide rod is fixedly mounted on the movable mounting base, and the other end of the strip-shaped slide rod passes through the sliding hole and slides in cooperation with the sliding sleeve. The traction drive mechanism includes a gear, a rack, and a knob. The rack is fixedly mounted on one side surface of the strip-shaped slide rod and is arranged along its length. The sliding sleeve has a drive hole communicating with the sliding hole and penetrating its left and right sides. One end of the knob's rotating shaft extends into the drive hole. The gear is located inside the drive hole and is rotatably connected to the sliding sleeve. It is fixedly mounted on the rotating shaft and meshes with the rack. The one-way self-locking mechanism includes a stop plate and an elastic element. The stop plate is hinged to the sliding sleeve through a hinge shaft, and the two ends of the stop plate form a pressing end and a stopping end, respectively. A stopping point is fixedly provided at the stopping end of the stop plate. A slot is provided on one side surface of the sliding sleeve that communicates with the sliding hole and allows the stopping point to pass through. The elastic element is used to always apply an elastic force to the stop plate so that the stopping point engages with the teeth of the rack.

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