Orthopedic lower limb side-lying three-dimensional reduction device

Abstract

The invention relates to the field of orthopaedic reduction, in particular to an orthopaedic lower limb side-lying three-dimensional reduction device which comprises a leg supporting plate, a longitudinal shank traction assembly, a vertical lifting assembly and a transverse thighbone traction assembly, and connecting frame assemblies used for being fixedly connected with an operating bed are arranged at the four corners of the leg supporting plate; after the leg supporting plate is fixed to the operating bed through the connecting frame assembly, a containing space used for containing legs on the healthy side is formed between the leg supporting plate and the operating bed, and limbs needing to be treated are placed on the supporting plate. According to the orthopedic lower limb side-lying three-dimensional reduction device, through the synergistic effect of the leg supporting plate, the longitudinal shank traction assembly, the vertical lifting assembly and the transverse thighbone traction assembly, the device can conduct precise reduction on the lower limb in a three-dimensional space, and the requirements of complex fracture surgeries are met.

Description

Technical Field

[0001] The present invention relates to the field of orthopedic reduction, and specifically to an orthopedic lower limb lateral three-dimensional reduction device. Background Art

[0002] I. Insufficient reduction accuracy Existing problems: Some orthopedic lower limb reduction devices on the market cannot achieve precise reduction in three-dimensional space. They only pull the sole of the foot, and the knee and thigh parts are in a suspended state. Especially when dealing with complex fractures, they cannot meet the requirements of the operation for reduction accuracy.

[0003] II. Poor flexibility and adaptability Existing problems: Some existing reduction devices cannot adapt to operating tables of different widths and types, as well as tracks with different side spacings on the operating table, resulting in limited use.

[0004] III. Imprecise traction control Existing problems: Some reduction devices on the market are not precise enough in traction control. They cannot display the magnitude of the traction force in real time, nor can they achieve precise displacement control.

[0005] IV. Comfort and safety issues Existing problems: Some reduction devices neglect the comfort and safety of patients in design and use. For example, they do not provide sufficient support and protection, resulting in problems such as limb falling and skin damage.

[0006] V. Single function and complex operation Existing problems: Some reduction devices on the market have relatively single functions and cannot meet the needs of various orthopedic lower limb surgeries. At the same time, the operation is relatively complex, increasing the difficulty and time of the operation.

[0007] Therefore, we propose an orthopedic lower limb lateral three-dimensional reduction device to solve the above problems. Summary of the Invention

[0008] To solve the above technical problems, the present invention provides an orthopedic lower limb lateral three-dimensional reduction device.

[0009] An orthopedic lower limb lateral three-dimensional reduction device provided by the present invention includes a leg support plate, a longitudinal calf traction component, a vertical lifting component, and a transverse femur traction component. Connection frame components for fixedly connecting with the operating table are provided at the four corners of the leg support plate; After the leg support plate is fixed on the operating table through the connection frame components, an accommodation space for accommodating the healthy leg is formed between the leg support plate and the operating table; A longitudinal calf traction component for pulling the calf is installed at one end of the foot end of the leg support plate; A vertical lifting component for supporting the thigh is placed at the head end of the leg support plate; A transverse femur traction component for pulling the femur is installed near the vertical lifting component at the head end of the leg support plate.

[0010] Preferably, the longitudinal calf traction component includes a mounting seat fixed at the foot end of the leg support plate. A lead screw is rotatably connected in the mounting seat through a rotating shaft. A handwheel is fixed at one end of the lead screw. A sliding seat is slidably connected to the mounting seat. A threaded hole engaged with the lead screw by thread is provided in the sliding seat. A display tension meter is fixed at the top of the sliding seat. A connecting sleeve is rotatably connected to the input shaft of the display tension meter. A shoe for fixing the patient's foot sole is fixed at one end of the connecting sleeve away from the display tension meter. An angle limiting device is provided between the input shaft of the display tension meter and the connecting sleeve.

[0011] Preferably, the angle limiting device includes an arc-shaped plate fixed on the input shaft of the display tension meter. A plurality of convex blocks are provided at one side edge of the arc-shaped plate. A limiting groove is provided between adjacent convex blocks. A U1-shaped plate is fixed on the side wall of the connecting sleeve. A limiting rod is hinged inside the U1-shaped plate and is matched with the limiting groove.

[0012] Preferably, the shoe is a thigh-high shoe, and a plurality of restraint straps are provided on the shoe.

[0013] Preferably, the vertical lifting component is connected to an inflation device through an air pipe.

[0014] Preferably, the transverse femur traction component includes a guide rail fixed at the foot end of the leg support plate. A sliding plate is slidably connected in the guide rail. An arc-shaped traction plate for contacting the anterior wall of the thigh is fixed on the sliding plate. A ratchet type tractor is installed at the head end of the guide rail. A binding strap is fixed at one end of the sliding plate, and one end of the binding strap is wound around the winding shaft of the ratchet type tractor.

[0015] Preferably, a support pad is placed between the longitudinal calf traction component and the transverse femur traction component at the top of the leg support plate.

[0016] Preferably, a connecting seat is fixed at the bottom of the leg support plate. A mounting hole is provided in the connecting seat, and a support column is installed in the mounting hole.

[0017] Preferably, the connecting frame component includes a Z-shaped plate fixed at the bottom of the leg support plate. The end of the Z-shaped plate is connected to an L-shaped plate through a bolt. A waist-shaped groove is provided on the L-shaped plate, and the bolt passes through the waist-shaped groove. A sliding block is slidably connected to the L-shaped plate. A plurality of positioning holes are provided vertically on the L-shaped plate. A screw is connected to the sliding block by thread, and the end of the screw is matched with the positioning hole.

[0018] Preferably, a wrapped edge protection soft pad is installed at one end of the leg support plate away from the longitudinal calf traction assembly. Preferably, the connecting frame assembly includes a U-shaped plate, a first threaded rod is connected to the U-shaped plate by a thread, a clamping plate is fixed to the end of the first threaded rod, an extension plate is connected to the outside of the U-shaped plate by a bolt, an L-shaped sleeve plate is slidably connected to the extension plate, the extension plate and the L-shaped sleeve plate are fixedly connected by a first screw handwheel, a support rod is fixed to one end of the L-shaped sleeve plate, a mounting block is slidably connected to the support rod, and the mounting block and the support rod are fixedly connected by a second screw handwheel.

[0019] Compared with the related art, the present invention provides the following beneficial effects: Three-dimensional reduction ability: Through the synergistic effect of the leg support plate, the longitudinal calf traction assembly, the vertical lifting assembly and the transverse femur traction assembly, the device can accurately reduce the lower limbs in three-dimensional space, meeting the needs of complex fracture surgery.

[0020] High flexibility and adaptability: The design of the connecting frame assembly allows the device to be firmly fixed to operating tables of different widths, and at the same time can adapt to the tracks with different spacings on the side of the operating table, showing extremely high flexibility and adaptability.

[0021] Precise traction control: The longitudinal calf traction assembly realizes precise displacement control through the threaded cooperation of the screw rod and the sliding seat. The display tension meter can display the magnitude of the traction force in real time, ensuring that the pulling force is accurately targeted and avoiding unnecessary harm to the patient.

[0022] Comfort and safety: The design of the support pad and the wrapped edge protection soft pad on the leg support plate increases safety, improves the comfort of the patient, and effectively avoids the risk of skin damage.

[0023] Simplify the surgical procedure: The appearance of this device simplifies the surgical procedure, reduces the intraoperative personnel configuration, reduces the surgical cost, and at the same time improves the success rate of minimally invasive surgery. Description of the drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 It is a schematic diagram of installing the orthopedic lower limb lateral lying three-dimensional reduction device of the first embodiment of the present invention on the operating table; Figure 3 It is a schematic diagram of the longitudinal calf traction assembly structure of the first embodiment of the present invention; Figure 4 It is a schematic diagram of the arc plate structure of the first embodiment of the present invention; Figure 5 It is a schematic diagram of the transverse femur traction assembly structure of the first embodiment of the present invention; Figure 6 Schematic diagram of the connecting frame assembly structure of the first embodiment of the present invention; Figure 7 Schematic diagram of the bottom structure of the leg support plate of the first embodiment of the present invention; Figure 8 Schematic diagram of the use of the C-shaped imaging machine of the first embodiment of the present invention; Figure 9 One of the schematic diagrams of the connecting frame assembly structure of the second embodiment of the present invention; Figure 10 Another schematic diagram of the connecting frame assembly structure of the second embodiment of the present invention; Figure 11 Schematic diagram of the connection between the display dynamometer and the shoe of the second embodiment of the present invention.

[0025] Reference numerals in the figure: 1, leg support plate; 2, longitudinal calf traction assembly; 3, vertical lifting assembly; 4, transverse femur traction assembly; 5, connecting frame assembly; 6, accommodation space; 7, mounting seat; 8, lead screw; 9, handwheel; 10, sliding seat; 11, display dynamometer; 12, connecting sleeve; 13, shoe; 14, angle limiting device; 15, arc plate; 16, convex block; 17, limiting groove; 18, U1-shaped plate; 19, limiting rod; 20, restraint belt; 21, inflation device; 22, guide rail; 23, sliding plate; 24, arc traction plate; 25, ratchet traction device; 26, strap; 27, support pad; 28, connecting seat; 29, support column; 30, Z-shaped plate; 31, L-shaped plate; 32, waist-shaped groove; 33, slider; 34, positioning hole; 35, edge protection soft pad; 36, screw; 37, U2-shaped plate; 38, first threaded rod; 39, clamping plate; 40, extension plate; 41, L-shaped sleeve plate; 42, first lead screw handwheel; 43, support rod; 44, mounting block; 45, second lead screw handwheel; 46, connecting rod; 47, Tri-clamp joint. Detailed implementation manners

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1 Please refer to Figures 1 to 8 An orthopedic lower limb lateral lying three-dimensional reduction device, the main body of the device is composed of a leg support plate 1, a longitudinal calf traction assembly 2, a vertical lifting assembly 3 and a transverse femur traction assembly 4. Through precise connection and layout of each part, they act together on the lower limb of the patient to achieve precise reduction in three-dimensional space.

[0028] The leg support plate 1, as the cornerstone of the entire device, firmly bears the patient's lower limbs. Connecting frame components 5 are ingeniously equipped at all four corners to ensure that the device can be firmly fixed to the operating table. The design of the connecting frame component 5 is unique. The Z-shaped plate 30 is firmly welded to the bottom of the leg support plate 1, and its end is tightly connected to the L-shaped plate 31 through an adjustable bolt. The waist-shaped groove 32 opened on the L-shaped plate 31 allows the bolt to move flexibly therein to adapt to operating tables of different widths. At the same time, a slider 33 is slidably connected to the L-shaped plate 31. The slider 33 can freely slide vertically along the L-shaped plate 31 and is locked with a plurality of positioning holes 34 preset on the L-shaped plate 31 through a screw 36 connected by threads. This design enables the device to adapt to the tracks with different spacings on the side of the operating table, showing extremely high flexibility and adaptability.

[0029] At one end of the top of the leg support plate 1, the longitudinal calf traction component 2 is clearly visible. This component consists of key components such as a mounting seat 7, a lead screw 8, a handwheel 9, a sliding seat 10, and a display tension gauge 11. The lead screw 8 is installed in the mounting seat 7 through a rotating shaft, and a handwheel 9 is fixed at one end thereof for easy operation by the doctor. The sliding seat 10 slides smoothly on the mounting seat 7 and forms a threaded fit with the lead screw 8, thereby achieving precise displacement control. The display tension gauge 11 connected to the top of the sliding seat 10 can not only display the magnitude of the traction force in real time, but also realizes the traction of the calf through the ingenious connection between its input shaft and the connecting sleeve 12. A shoe 13 for fixing the patient's foot sole is fixed at one end of the connecting sleeve 12 away from the display tension gauge 11. The shoe 13 has a long tube design, a larger contact area, and is equipped with a restraint strap 20 to ensure the firm fixation of the patient's foot sole. In addition, an angle limiting device 14 is provided between the display tension gauge 11 and the connecting sleeve 12. This device consists of an arc-shaped plate 15, a convex block 16, a limiting groove 17, a U-shaped plate 18, and a limiting rod 19. They work together to enable the shoe 13 and the fixed calf to be adjusted for internal rotation, neutral position, or external rotation with the leg support plate 1 as the center, meeting different surgical requirements.

[0030] At the other end of the leg support plate 1, a vertical lifting component 3 for supporting the thigh is placed. This component is connected to an inflation device 21 through an air pipe. The doctor can inflate the component through the inflation device 21 to generate a force, similar to the working principle of a sphygmomanometer cuff, to provide stable support for the inner wall of the thigh and then accurately position the femur.

[0031] Near the vertical lifting component 3, the transverse femur traction component 4 plays a crucial role. This component consists of a guide rail 22, a slide plate 23, an arc-shaped traction plate 24, a ratchet traction device 25, and a strap 26. The guide rail 22 is fixed to the top of the leg support plate 1. The slide plate 23 slides smoothly within the guide rail 22, and the arc-shaped traction plate 24 fixed thereon closely adheres to the anterior thigh wall. The ratchet traction device 25 then laterally traction and positions the femur by pulling and winding the strap 26 with the arc-shaped traction plate 24.

[0032] To improve the patient's comfort and ensure surgical safety, a support pad 27 is also provided on the leg support plate 1. This pad is located between the longitudinal calf traction component 2 and the transverse femur traction component 4, providing support for the medial side of the calf and preventing excessive ankle flexion. At the same time, a wrapped edge protection soft pad 35 is installed at the head end away from the longitudinal calf traction component 2, effectively avoiding direct contact between the edge of the leg support plate 1 and the inner thigh and reducing the risk of skin damage.

[0033] In practical applications, the operation process of this device is simple and clear. First, the patient's waist is anesthetized. Then, the leg support plate 1 is fixed to the operating table through the connecting frame component 5. The patient lies on the hospital bed on their side, with the leg to be operated on placed on the leg support plate 1, and the other leg is naturally placed in the accommodation space 6 formed between the leg support plate 1 and the operating table. Next, the patient's foot is inserted into the shoe 13 and is assisted in fixation through the restraint strap 20 and gauze if necessary. Then, the doctor drives the lead screw 8 to rotate by operating the handwheel 9, causing the slide seat 10 and the display tension gauge 11 to slide along the mounting seat 7 together, thereby pulling the calf. At the same time, the vertical lifting component 3 is inflated through the inflation device 21 to provide support for the thigh. Finally, the ratchet traction device 25 winds the strap 26 to laterally traction and position the femur with the arc-shaped traction plate 24. Throughout the process, the doctor can monitor the magnitude of the traction force in real-time through the display tension gauge 11 to ensure that the traction force is appropriate and avoid causing unnecessary harm to the patient.

[0034] The emergence of this device not only fills the gap in the orthopedic lower limb without a three-dimensional reduction traction surgical system but also greatly simplifies the surgical process, reduces the intraoperative personnel configuration, and lowers the surgical cost. At the same time, its precise and efficient reduction means significantly improve the success rate of minimally invasive surgery, bringing good treatment effects and a faster recovery speed for patients. The indications include femoral neck fractures, intertrochanteric and subtrochanteric fractures, femoral shaft fractures in the middle and upper segments, etc., bringing good news to patients.

[0035] Embodiment 2 Please refer to Figures 9 to 11The connecting frame assembly 5 includes a U2-shaped plate 37, a first threaded rod 38 is threadedly connected to the U2-shaped plate 37, a clamping plate 39 is fixed to the end of the first threaded rod 38, an extension plate 40 is bolted to the outside of the U2-shaped plate 37, an L-shaped sleeve plate 41 is slidably connected to the extension plate 40, the extension plate 40 and the L-shaped sleeve plate 41 are fixedly connected by a first screw handwheel 42, a support rod 43 is fixed to one end of the L-shaped sleeve plate 41, a mounting block 44 is slidably connected to the support rod 43, and the mounting block 44 and the support rod 43 are fixedly connected by a second screw handwheel 45.

[0036] The U2-shaped plate 37 is fixed on the leg support plate 1 through the cooperation of the first threaded rod 38 and the clamping plate 39. Through the arrangement of the L-shaped sleeve 41, the extension plate 40, the first screw handwheel 42, the support rod 43, the second screw handwheel 45 and the mounting block 44, the mounting block 44 is fixedly connected to the guide rail on the side of the operating bed, so that the height of the leg support plate 1 relative to the bed surface can be adjusted.

[0037] The longitudinal calf traction assembly 2 includes a mounting base 7 fixed on the top of the leg support plate 1, a screw rod 8 is rotatably connected to the mounting base 7 through a rotating shaft, a handwheel 9 is fixed to one end of the screw rod 8, a slide 10 is slidably connected to the mounting base 7, a threaded hole is provided in the slide 10 for threaded engagement with the screw rod 8, a dynamometer 11 is fixed to the top of the slide 10, an input shaft of the dynamometer 11 is fixedly connected to a connecting rod 46 through a Tri-clamp joint 47, and a shoe 13 for fixing the patient's foot is fixed to the end of the connecting rod 46 away from the dynamometer 11.

[0038] Easy to install and remove shoes13.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An orthopedic lower limb lateral lying three-dimensional reduction device, characterized in that It includes a leg support plate (1), a longitudinal calf traction component (2), a vertical lifting component (3) and a transverse femur traction component (4). Connecting frame components (5) for fixedly connecting with the operating table are provided at the four corners of the leg support plate (1); At one end of the foot end of the leg support plate (1), a longitudinal calf traction component (2) for pulling the calf is installed; At the other end of the head end of the leg support plate (1), a vertical lifting component (3) for supporting the thigh is placed; At the head end of the leg support plate (1) near the vertical lifting component (3), a transverse femur traction component (4) for pulling the femur is installed.

2. The three-dimensional reduction device for the lower limb of orthopaedics in the lateral lying position according to claim 1, wherein, The longitudinal calf traction component (2) includes a mounting seat (7) fixed on the top of the leg support plate (1). A lead screw (8) is rotatably connected in the mounting seat (7) through a rotating shaft. A hand wheel (9) is fixed at one end of the lead screw (8). A sliding seat (10) is slidably connected to the mounting seat (7). A threaded hole threadedly engaged with the lead screw (8) is provided in the sliding seat (10). A display tension gauge (11) is fixed on the top of the sliding seat (10). A connecting sleeve (12) is rotatably connected to the input shaft of the display tension gauge (11). At the end of the connecting sleeve (12) away from the display tension gauge (11), a shoe (13) for fixing the affected limb's foot is fixed. An angle limiting device (14) is provided between the input shaft of the display tension gauge (11) and the connecting sleeve (12).

3. An orthopedic lower limb lateral lying three-dimensional reduction device according to claim 2, characterized in that, The angle limiting device (14) includes an arc-shaped plate (15) fixed on the input shaft of the display tension gauge (11). A plurality of protrusions (16) are provided at one side edge of the arc-shaped plate (15). A limiting groove (17) is provided between adjacent protrusions (16). A U1-shaped plate (18) is fixed on the side wall of the connecting sleeve (12). A limiting rod (19) is hinged inside the U1-shaped plate (18), and the limiting rod (19) is matched with the limiting groove (17).

4. An orthopedic lower limb lateral lying three-dimensional reduction device according to claim 3, characterized in that, The shoe (13) is a long tube shoe, and a plurality of restraint straps (20) are provided on the shoe (13).

5. The three-dimensional reduction device for the lower limb of orthopaedics in the lateral lying position according to claim 1, wherein, The vertical lifting component (3) is connected to an inflation device (21) through an air pipe.

6. The three-dimensional reduction device for the lower limb of orthopaedics in lateral lying position according to claim 1, characterized in that, The transverse femur traction component (4) includes a guide rail (22) fixed on the top of the leg support plate (1). A sliding plate (23) is slidably connected in the guide rail (22). An arc-shaped traction plate (24) for contacting the anterior wall of the thigh is fixed on the sliding plate (23). A ratchet type tractor (25) is installed at one end of the guide rail (22). A strap (26) is fixed at one end of the sliding plate (23), and one end of the strap (26) is wound around the winding shaft of the ratchet type tractor (25).

7. An orthopedic lower limb lateral lying three-dimensional reduction device according to claim 1, characterized in that, A support pad (27) is placed between the foot end of the leg support plate (1) and the longitudinal calf traction component (2) and the transverse femur traction component (4).

8. An orthopedic lower limb lateral lying three-dimensional reduction device according to claim 7, characterized in that, A connecting seat (28) is fixed at the bottom of the leg support plate (1). A mounting hole is provided in the connecting seat (28), and a support column (29) is installed in the mounting hole. A wrapped edge protection soft pad (35) is installed at the head end of the leg support plate (1) away from the longitudinal calf traction component (2).

9. The three-dimensional reduction device for the lateral position of the lower limb of orthopaedics according to claim 1, wherein, The connecting frame assembly (5) includes a Z-shaped plate (30) fixed to the bottom of the leg support plate (1). The end of the Z-shaped plate (30) is bolted to an L-shaped plate (31). A waist-shaped groove (32) is provided on the L-shaped plate (31), and the bolt passes through the waist-shaped groove (32). A slider (33) is slidably connected to the L-shaped plate (31). A plurality of positioning holes (34) are provided vertically on the L-shaped plate (31). A screw (36) is threadedly connected inside the slider (33), and the end of the screw (36) is engaged with the positioning hole (34).

10. The three-dimensional reduction device for the lower limb in the lateral position of orthopedics according to claim 1, characterized in that, The connecting frame assembly (5) includes a U2-shaped plate (37). A first threaded rod (38) is threadedly connected to the U2-shaped plate (37). A clamping plate (39) is fixed to the end of the first threaded rod (38). An extension plate (40) is bolted to the outside of the U2-shaped plate (37). An L-shaped sleeve plate (41) is slidably connected to the extension plate (40). The extension plate (40) and the L-shaped sleeve plate (41) are fixedly connected by a first screw handwheel (42). A support rod (43) is fixed to one end of the L-shaped sleeve plate (41). An installation block (44) is slidably connected to the support rod (43). The installation block (44) and the support rod (43) are fixedly connected by a second screw handwheel (45).

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