A positioning device for orthopedic door nail

Abstract

The application relates to the technical field of door type nail positioning, and discloses a positioning device for a door type nail in orthopedics, which comprises a bed body, support legs are fixedly connected to the two sides of the bottom of the bed body, a positioning mechanism is arranged on the bed body, the positioning mechanism comprises a support plate, and the support plate is arranged on the outer side of the bed body. Through the design of the positioning mechanism, the door type nail body and the drill rod are installed on the rotating platform, so that the position of the rotating platform can be directly adjusted when positioning, the door type nail body and the drill rod can be synchronously adjusted, the rotating platform is further controlled to rotate after the position is adjusted, the door type nail body and the drill rod on the outer side of the rotating platform can be sequentially turned to the direction of the patient, and the door type nail body and the drill rod can sequentially work in turn. In this way, the door type nail body and the drill rod are synchronously adjusted and work in turn at the same position, the adjustment steps are simpler and more convenient, and the accuracy is higher.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of door type nail positioning, in particular to a positioning device for orthopedic door type nails. BACKGROUND

[0002] Door type nails, also known as bone nails or bone fixation nails, are medical devices used to fix bone structures in surgical operations. They are usually made of metal materials and have high strength and corrosion resistance to provide stable support after the operation and promote bone healing.

[0003] Patent No. CN117958945A discloses a positioning device for orthopedic door type nails and a use method, which comprises a lying bed, the top of the lying bed is slidably connected with a constraint structure, the two sides of the lying bed are slidably connected with a positioning structure and a door type nail fixing structure matched with the positioning structure from left to right, a cavity is formed in the inner wall of the lying bed, and a driving structure is installed in the cavity to provide power for the positioning structure and the door type nail fixing structure. When the A lead screw rotates, the movable block can be driven to move, and the movable plate can drive the drilling assembly to move at the same time. After the drilling assembly moves to the position where the patient needs to be nailed, drilling is performed, and then the door type nail fixing structure is installed according to the reserved hole drilled by the drilling assembly, thereby reducing the high level requirement of traditional devices for medical staff, the high risk and the poor accuracy.

[0004] Although the above device realizes positioning and accurate movement of the door type nail to reduce the high level requirement of the staff operation, in the overall operation steps, the drilling assembly and the door type nail fixing structure need to be adjusted in front and back and left and right directions for accurate positioning, and the operation process is complex, which leads to low installation efficiency. Finally, the two independent adjustment processes may cause differences between the drilling position and the subsequent door type nail adjustment position, so as to ensure the consistency of the two position adjustments. Therefore, the positioning device for orthopedic door type nails is proposed to solve the above problems. SUMMARY

[0005] In order to solve the above problems, the application provides a positioning device for orthopedic door type nails.

[0006] The positioning device for orthopedic door type nails provided by the application adopts the following technical scheme:

[0007] A positioning device for orthopedic door type nails, comprising a bed body, support legs are fixedly connected to the two sides of the bottom of the bed body, and a positioning mechanism is arranged on the bed body.

[0008] The positioning mechanism comprises a support plate arranged outside the bed body, a control plate arranged at the bottom of the bed body, control blocks integrally formed at both ends of the control plate, guide plates integrally formed inside the support legs, two guide plates penetrating through the two control blocks respectively, a placing seat fixedly connected to one side of the control block, the support plate bottom extending into the placing seat, a moving block slidingly connected to the top wall of the support plate, an auxiliary frame integrally formed at the bottom of the moving block, a U-shaped plate arranged at the bottom of the auxiliary frame, a first electric push rod fixedly connected to the top of the U-shaped plate, the first electric push rod extending into the auxiliary frame and rotationally connected with the auxiliary frame, a connecting rod rotationally connected to the inside of the U-shaped plate, a rotating platform fixedly connected to the outside of the connecting rod, a rectangular frame fixedly connected to the top of the rotating platform, two movable blocks slidingly connected inside the rectangular frame, a base frame fixedly connected to the top of the movable block, a lifting plate slidingly connected inside the base frame, the lifting plate extending out of the base frame, a door-shaped nail body arranged at the top of the rectangular frame, two clamping grooves formed at the bottom of the door-shaped nail body, two lifting plates extending into the clamping grooves and abutting with the inside of the clamping grooves, two vertical plates fixedly connected to the bottom of the rotating platform, a frame plate slidingly connected between the two vertical plates, two fixed rods rotationally connected to the inside of the frame plate, the fixed rods extending out of the frame plate, a rectangular groove formed at the bottom of the fixed rod, a drill rod arranged at the bottom of the fixed rod, a rectangular block integrally formed at the top of the drill rod, the rectangular block extending into the rectangular groove and matching with the rectangular groove.

[0009] By adopting the above technical scheme, the patient is treated on the bed body, and in specific operation, the door-shaped nail body and the drill rod are installed on the rotating platform, so that in positioning, the position of the rotating platform is adjusted directly, the door-shaped nail body and the drill rod are adjusted synchronously, and after the position is adjusted, the rotating platform is further controlled to rotate, so that the door-shaped nail body and the drill rod outside the rotating platform are turned to the direction of the patient in turn, and work in turn, so that the door-shaped nail body and the drill rod are adjusted synchronously and work in turn at the same position, and the adjustment steps are more simple and convenient, and the accuracy is higher.

[0010] Preferably, the rectangular frame and the rotating platform are fixedly connected with an extension plate, the rectangular frame is rotationally connected with a bidirectional threaded rod inside, the bidirectional threaded rod penetrates through the two movable blocks in turn and is threadedly connected with the two movable blocks respectively, the rectangular frame is fixedly connected with a first motor outside, the first motor is fixedly connected with one end of the bidirectional threaded rod through an output shaft, the rectangular frame is provided with a long plate at the top, the two lifting plates penetrate through the long plate and are transversely slidingly connected with the long plate, the rectangular frame is fixedly connected with a second electric push rod at the top, and one end of the second electric push rod is fixedly connected with the bottom of the long plate.

[0011] By adopting the technical scheme, the two-way threaded rod has opposite thread directions at two ends, and can drive the two movable blocks to move towards each other or away from each other.

[0012] Preferably, the second motor is fixedly connected to the inner side of the frame plate, the first gear is fixedly connected to the output shaft of the second motor, the second gears are fixedly connected to the outer sides of the two fixed rods, the first gear is arranged between the two second gears, and the first gear is engaged with the two second gears respectively.

[0013] By adopting the technical scheme, the first gear can drive the two second gears to rotate after the first gear rotates.

[0014] Preferably, the third electric push rod is fixedly connected to the top of the frame plate, one end of the third electric push rod is fixedly connected to the bottom of the rotating platform, the fixed bolts are arranged on one side of the fixed rod, the fixed bolts respectively penetrate the fixed rod and the drill rod, and the fixed bolts are connected to the fixed rod through threads.

[0015] By adopting the technical scheme, after the fixed bolts are screwed in, the stable connection of the drill rod on the fixed rod is realized, so that the drill rod can be flexibly assembled and disassembled.

[0016] Preferably, the third motor is fixedly connected to the outer side of the U-shaped plate, the third gear is fixedly connected to the output shaft of the third motor, the fourth gear is fixedly connected to the outer side of the connecting rod, the fourth gear is arranged at the bottom of the third gear, and the fourth gear is engaged with the third gear.

[0017] By adopting the technical scheme, the third gear drives the fourth gear to rotate after the third gear rotates.

[0018] Preferably, the limit plate is fixedly connected to the inside of the auxiliary frame, the movable plate is slidably connected to the outside of the limit plate, the rack is fixedly connected to the movable plate, the fifth gear is fixedly connected to the outside of the first electric push rod, the fifth gear is arranged on one side of the rack and engaged with the rack, the fourth electric push rod is fixedly connected to the inside of the auxiliary frame, and one end of the fourth electric push rod is fixedly connected to the movable plate.

[0019] By adopting the technical scheme, after the movable plate drives the rack to move, the rack can drive the fifth gear to rotate, so as to adjust the angle of the auxiliary frame.

[0020] Preferably, the two rectangular plates are fixedly connected to the bottom of the bed body, the first threaded adjusting rod is rotatably connected between the two rectangular plates, the fourth motor is fixedly connected to one of the rectangular plates, and the fourth motor is fixedly connected to one end of the first threaded rod through an output shaft.

[0021] By adopting the technical scheme, the first threaded rod drives the control plate to move after the first threaded rod rotates.

[0022] Preferably, the support plate is rotatably connected with a second threaded adjusting rod, the second threaded adjusting rod penetrates the moving block and is threadedly connected with the moving block, one side wall of the support plate is fixedly connected with a fifth motor, and the fifth motor is fixedly connected with one end of the second threaded adjusting rod through an output shaft.

[0023] By adopting the above technical scheme, the second threaded adjusting rod drives the moving block to move horizontally after rotating.

[0024] Preferably, two positioning grooves are formed in the bottom of the support plate, a positioning assembly is arranged on the placing seat, the positioning assembly comprises a connecting plate, the connecting plate is slidably connected to the inner side of the placing seat, a threaded auxiliary rod is rotatably connected to the top of the connecting plate, and the threaded auxiliary rod extends out of the placing seat and is threadedly connected with the placing seat.

[0025] By adopting the above technical scheme, the threaded auxiliary rod drives the connecting plate to move up and down after rotating, and the connecting plate can press the bottom end of the support plate against the inside of the placing seat.

[0026] Preferably, two positioning rods are integrally formed at the bottom of the connecting plate, and the two positioning rods extend into the two positioning grooves and are matched with the two positioning grooves.

[0027] By adopting the above technical scheme, the positioning rods are inserted into the positioning grooves to lock the bottom end of the support plate, thereby improving the stability of the support plate after installation.

[0028] In summary, the present application has the following beneficial technical effects:

[0029] 1. By the design of the positioning mechanism, the door-shaped nail body and the drill rod are installed on the rotating platform, so that when positioning, the position of the rotating platform is adjusted directly, the door-shaped nail body and the drill rod are adjusted synchronously, and after the position is adjusted, the rotating platform is further controlled to rotate, so that the door-shaped nail body and the drill rod on the outer side of the rotating platform are turned to the direction of the patient in turn, and work in turn. In this way, the door-shaped nail body and the drill rod are adjusted synchronously and work alternately at the same position, so that the adjustment steps are more simple and convenient, and the accuracy is higher.

[0030] 2. The two lifting plates are inserted into the two clamping grooves and clamped, the installation of the door-shaped nail body is completed, the rectangular block at the top of the drill rod is inserted into the rectangular groove, the rectangular block is fixed in the fixed rod by screwing the fixing bolt, and the door-shaped nail body and the drill rod can be disassembled by repeating the above reverse operation when disassembly is needed. Accordingly, the door-shaped nail body and the drill rod can be quickly assembled and disassembled, the operation threshold is low, and the operation can be quickly started.

[0031] 3、The present application through the design of positioning assembly, rotating screw auxiliary rod, screw auxiliary rod drives the interface plate to move up and down, when the positioning rod moves to leave the positioning groove, the support plate can be taken out from the placing seat, similarly, when installing, the bottom end of the support plate is placed in the placing seat, after the positioning rod is inserted into the positioning groove, the support plate installation is completed, in this way, convenient installation and removal is realized, the flexibility during use is improved, the support plate is convenient to take down when the bed body does not need to perform a surgical treatment task, space is saved, and personnel getting on and off the bed body is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural schematic view of the present application;

[0033] Figure 2 It is a bottom view structural view of the present application;

[0034] Figure 3 It is a structural schematic view of the support plate in the present application;

[0035] Figure 4 It is a sectional view structural view of the auxiliary frame in the present application;

[0036] Figure 5 It is a structural schematic view of the rectangular frame in the present application;

[0037] Figure 6 It is an enlarged view of A in Figure 5 ;

[0038] Figure 7 It is an enlarged view of B in Figure 5 ;

[0039] Figure 8 It is a split view of the drill rod and the fixed rod in the present application;

[0040] Figure 9 It is a split view of the support plate and the placing seat in the present application.

[0041] Explanation of reference signs: 1, bed body; 2, support leg; 3, positioning mechanism; 31, support plate; 32, control plate; 33, control block; 34, guide plate; 35, placement seat; 36, moving block; 37, auxiliary frame; 38, U-shaped plate; 39, first electric push rod; 391, connecting rod; 392, rotating platform; 393, rectangular frame; 394, movable block; 395, base frame; 396, lifting plate; 397, door-shaped nail body; 398, clamping groove; 399, vertical plate; 381, frame plate; 382, fixed rod; 383, rectangular groove; 384, drill rod; 385, rectangular block; 386, bidirectional threaded rod; 387, first motor; 388, long plate; 389, second electric push rod; 371, second motor; 372, first gear; 373, second gear; 374, third electric push rod; 375, fixed bolt; 376, third motor; 377, third gear; 378, fourth gear; 379, moving plate; 361, rack; 362, fifth gear; 363, fourth electric push rod; 364, first threaded adjusting rod; 365, fourth motor; 366, second threaded adjusting rod; 367, fifth motor; 4, positioning groove; 5, positioning assembly; 51, connecting plate; 52, threaded auxiliary rod; 53, positioning rod. DETAILED DESCRIPTION

[0042] The following will be described in detail below Figure 1 -Appendix Figure 9 The application will be further described in detail.

[0043] The application discloses a positioning device for orthopedic door-shaped nails. Figures 1-9 , comprising a bed body 1, both sides of the bottom of the bed body 1 are fixedly connected with support legs 2, the bed body 1 is provided with a positioning mechanism 3, the positioning mechanism 3 comprises a support plate 31, the support plate 31 is arranged on the outer side of the bed body 1, the bottom of the bed body 1 is provided with a control plate 32, both ends of the control plate 32 are integrally formed with control blocks 33, the inner sides of the support legs 2 are integrally formed with guide plates 34, the two guide plates 34 respectively penetrate through the two control blocks 33, and the control blocks 33 are fixedly connected with placement seats 35 on one side;

[0044] The bottom of the support plate 31 extends into the inside of the placement seat 35, the top wall of the support plate 31 is slidably connected with a moving block 36, the bottom of the moving block 36 is integrally formed with an auxiliary frame 37, the bottom of the auxiliary frame 37 is provided with a U-shaped plate 38, the top of the U-shaped plate 38 is fixedly connected with a first electric push rod 39, the first electric push rod 39 extends into the inside of the auxiliary frame 37 and is rotationally connected with the auxiliary frame 37, the inner side of the U-shaped plate 38 is rotationally connected with a connecting rod 391, and the outer side of the connecting rod 391 is fixedly connected with a rotating platform 392;

[0045] The rotating platform 392 is fixedly connected with a rectangular frame 393 on the top. The rectangular frame 393 is slidably connected with two movable blocks 394 inside. The movable blocks 394 are fixedly connected with a base frame 395 on the top. The base frame 395 is slidably connected with a lifting plate 396 inside. The lifting plate 396 extends outside the base frame 395. The rectangular frame 393 is provided with a door-shaped nail body 397 on the top. Two clamping grooves 398 are formed in the bottom of the door-shaped nail body 397. The two lifting plates 396 extend into the clamping grooves 398 and are attached to the inner sides of the clamping grooves 398. The rotating platform 392 is fixedly connected with two vertical plates 399 on the bottom. The two vertical plates 399 are slidably connected with a frame plate 381. The frame plate 381 is rotatably connected with two fixed rods 382 on the inner side. The fixed rods 382 extend outside the frame plate 381.

[0046] The fixed rod 382 is provided with a rectangular groove 383 in the bottom. The fixed rod 382 is provided with a drill rod 384. The drill rod 384 is integrally formed with a rectangular block 385 on the top. The rectangular block 385 extends into the rectangular groove 383 and matches the rectangular groove 383. The patient is treated on the bed body 1. In specific operation, the door-shaped nail body 397 and the drill rod 384 are installed on the rotating platform 392. Therefore, when positioning, the position of the rotating platform 392 is adjusted to realize the synchronous adjustment of the door-shaped nail body 397 and the drill rod 384. After the position is adjusted, the rotating platform 392 is further controlled to rotate to make the door-shaped nail body 397 and the drill rod 384 on the outer side of the rotating platform 392 turn to the direction of the patient in turn to work in turn. In this way, the door-shaped nail body 397 and the drill rod 384 are adjusted synchronously and work alternately at the same position. The adjustment steps are more simple and convenient, and the accuracy is higher.

[0047] The rectangular frame 393 is fixedly connected with an extension plate between the rotating platform 392. The rectangular frame 393 is rotatably connected with a bidirectional threaded rod 386 inside. The bidirectional threaded rod 386 penetrates the two movable blocks 394 in turn and is connected with the two movable blocks 394 through threads. The rectangular frame 393 is fixedly connected with a first motor 387 on the outer side. The first motor 387 is fixedly connected with the bidirectional threaded rod 386 through an output shaft on one end. The rectangular frame 393 is provided with a long plate 388 on the top. The two lifting plates 396 penetrate the long plate 388 and are connected with the long plate 388 through horizontal sliding. The rectangular frame 393 is fixedly connected with a second electric push rod 389 on the top. One end of the second electric push rod 389 is fixedly connected with the bottom of the long plate 388. The two ends of the bidirectional threaded rod 386 are opposite in thread direction to drive the two movable blocks 394 to move towards or away from each other.

[0048] The second motor 371 is fixedly connected inside the frame plate 381, the first gear 372 is fixedly connected to the second motor 371 through an output shaft, the second gears 373 are fixedly connected outside the two fixed rods 382, the first gear 372 is arranged between the two second gears 373 and is engaged with the two second gears 373 respectively, the first gear 372 can drive the two second gears 373 to rotate after rotating, the third electric push rod 374 is fixedly connected to the top of the frame plate 381, one end of the third electric push rod 374 is fixedly connected to the bottom of the rotating platform 392, the fixed bolts 375 are arranged on one side of the fixed rod 382, the fixed bolts 375 penetrate through the fixed rod 382 and the drill rod 384 respectively, and the fixed bolts 375 are connected with the fixed rod 382 in a threaded mode; after the fixed bolts 375 are screwed, the stable connection of the drill rod 384 on the fixed rod 382 is realized, so that the drill rod 384 can be flexibly assembled and disassembled;

[0049] The third motor 376 is fixedly connected outside the U-shaped plate 38, the third gear 377 is fixedly connected to the third motor 376 through an output shaft, the fourth gear 378 is fixedly connected outside the connecting rod 391, the fourth gear 378 is arranged at the bottom of the third gear 377 and is engaged with the third gear 377, and the third gear 377 drives the fourth gear 378 to rotate after rotating.

[0050] The limiting plate is fixedly connected inside the auxiliary frame 37, the movable plate 379 is slidably connected outside the limiting plate, the rack 361 is fixedly connected to the movable plate 379, the fifth gear 362 is fixedly connected outside the first electric push rod 39, the fifth gear 362 is arranged on one side of the rack 361 and is engaged with the rack 361, the fourth electric push rod 363 is fixedly connected inside the auxiliary frame 37, one end of the fourth electric push rod 363 is fixedly connected to the movable plate 379, the rack 361 can drive the fifth gear 362 to rotate after the movable plate 379 drives the rack 361 to move, and the angle of the auxiliary frame 37 is adjusted in this way;

[0051] The two rectangular plates are fixedly connected to the bottom of the bed body 1, the first threaded adjusting rod 364 is rotatably connected between the two rectangular plates, the fourth motor 365 is fixedly connected to one of the rectangular plates, one end of the first threaded rod is fixedly connected to the fourth motor 365 through an output shaft, the first threaded rod drives the control plate 32 to move after rotating, the second threaded adjusting rod 366 is rotatably connected to the support plate 31, the second threaded adjusting rod 366 penetrates through the moving block 36 and is connected with the moving block 36 in a threaded mode, the fifth motor 367 is fixedly connected to one side wall of the support plate 31, one end of the second threaded adjusting rod 366 is fixedly connected to the fifth motor 367 through an output shaft, and the moving block 36 is driven to move horizontally after the second threaded adjusting rod 366 rotates.

[0052] The bottom of the support plate 31 is provided with two positioning grooves 4, and the placing seat 35 is provided with a positioning assembly 5. The positioning assembly 5 comprises a connecting plate 51 which is slidably connected to the inner side of the placing seat 35. The top of the connecting plate 51 is rotatably connected with a threaded auxiliary rod 52 which extends out of the placing seat 35 and is connected with the placing seat 35 through threads. The threaded auxiliary rod is rotated to drive the connecting plate 51 to move up and down. The connecting plate 51 can press the bottom end of the support plate 31 against the inside of the placing seat 35. The bottom of the connecting plate 51 is integrally formed with two positioning rods 53 which extend into the two positioning grooves 4 respectively and match with the positioning grooves 4. The positioning rods 53 are inserted into the positioning grooves 4 to lock the bottom end of the support plate 31, thereby improving the stability of the support plate 31 after installation.

[0053] In actual operation, when the device is used, first, the device is powered on, and the patient receives treatment on the bed body 1. The support plate 31 in the device can be flexibly assembled and disassembled. In specific operation, the threaded auxiliary rod 52 is rotated to drive the connecting plate 51 to move up and down. The connecting plate 51 drives the positioning rods 53 to move. When the positioning rods 53 move away from the positioning grooves 4, the support plate 31 can be taken out of the placing seat 35 for disassembly. Similarly, when installing, the bottom end of the support plate 31 is placed in the placing seat 35, and the positioning rods 53 are controlled to be inserted into the positioning grooves 4 after installation of the support plate 31 is completed. In this way, the support plate 31 can be conveniently assembled and disassembled, improving the flexibility during use. When the bed body 1 does not need to perform a surgical treatment task, the support plate 31 can be removed to save space, thereby facilitating personnel to get on and off the bed body 1;

[0054] The door-shaped nail body 397 is provided with a clamping groove 398. When installing, the two lifting plates 396 are inserted into the two clamping grooves 398. The first motor 387 works to drive the bidirectional threaded rod 386 to rotate. The bidirectional threaded rod 386 drives the movable block 394 to move. The movable block 394 drives the base frame 395 to move. The base frame 395 drives the lifting plate 396 to move. The lifting plate 396 can slide horizontally on the long plate 388, so the movement of the lifting plate 396 will not affect the long plate 388. When the lifting plate 396 moves to fit in the clamping groove 398, the installation of the door-shaped nail body 397 is completed. When installing the drill rod 384, the rectangular block 385 at the top of the drill rod 384 is inserted into the rectangular groove 383, and the fixed bolt 375 is screwed into the fixed rod 382 to fix the rectangular block 385 in the fixed rod 382. Similarly, when disassembling, the above reverse operation can be repeated to disassemble the door-shaped nail body 397 and the drill rod 384. Correspondingly, the door-shaped nail body 397 and the drill rod 384 can be quickly assembled and disassembled, and the operation threshold is low, so the operation can be quickly started;

[0055] In use, the fifth motor 367 works to drive the second threaded rod to rotate, the second threaded rod drives the moving block 36 to move, the moving block 36 drives the auxiliary frame 37 to move, the auxiliary frame 37 drives the first electric push rod 39 to move, the first electric push rod 39 drives the U-shaped plate 38 to move, the U-shaped plate 38 drives the connecting rod 391 to move, the connecting rod 391 drives the rotating platform 392 to move horizontally, and the fourth motor 365 works to drive the first threaded rod to rotate, the first threaded rod drives the control plate 32 to move, the control plate 32 drives the control block 33 to move, the control block 33 drives the placing seat 35 to move, and the placing seat 35 drives the support plate 31 to move. As can be known from the above connection relationship, the rotating platform 392 can be controlled to move horizontally forward and backward at this time;

[0056] When the rotating platform 392 is moved to the working area, the third motor 376 works to drive the third gear 377 to rotate, the third gear 377 drives the fourth gear 378 to rotate, the fourth gear 378 drives the connecting rod 391 to rotate, and the connecting rod 391 drives the rotating platform 392 to rotate. As can be known from the above connection relationship, the rotating platform 392 can be controlled to rotate in this way, the drill rod 384 and the door-shaped nail body 397 can be controlled to be directed to the patient in turn, and small-range angle adjustment can be continued based on this step after the drill rod 384 and the door-shaped nail body 397 are directed to the patient, so as to adjust the drilling inclination angle of the drill rod 384 and the door-shaped nail body 397, and achieve the purpose of multi-angle drilling. On this basis, when the patient's arm or leg is in a diverging state and needs to be treated, the fourth electric push rod 363 works to push the moving plate 379, the moving plate 379 drives the rack 361 to move, the fifth gear 362 rotates after the rack 361 moves, the fifth gear 362 drives the first electric push rod 39 to rotate, and the first electric push rod 39 drives the U-shaped plate 38 to rotate. As can be known from the above operation, the horizontal angle of the drill rod 384 and the door-shaped nail body 397 can be adjusted in this way to adapt to the operation requirements of the arms or legs placed at different angles;

[0057] The first electric push rod 39 works to push and pull the U-shaped plate 38 up and down, and accordingly the overall height of the drill rod 384 and the door-shaped nail body 397 can be adjusted. When the overall height is adjusted, the second electric push rod 389 works to push the long plate 388, and the long plate 388 drives the lifting plate 396 to move. At this time, the long plate 388 drives the door-shaped nail body 397 to move along the axial direction of the lifting plate 396, so as to achieve the positioning purpose. Similarly, the third electric push rod 374 works to push the frame plate 381, and the frame plate 381 drives the fixed rod 382 to move. At the same time, the second motor 371 works to drive the first gear 372 to rotate, and the first gear 372 drives the two second gears 373 to rotate. The two second gears 373 drive the fixed rod 382 to rotate, and the fixed rod 382 drives the rectangular block 385 to rotate. The rectangular block 385 drives the drill rod 384 to rotate. At the same time, the third electric push rod 374 pushes the frame plate 381, so as to achieve the purpose of drilling the drill rod 384 to the patient's affected area.

[0058] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A positioning device for orthopedic portal screws, comprising a bed (1), characterized in that: The bed body (1) has support legs (2) fixedly connected to both sides of the bottom, and a positioning mechanism (3) is provided on the bed body (1). The positioning mechanism (3) includes a support plate (31), which is located on the outside of the bed frame (1). A control plate (32) is located at the bottom of the bed frame (1). Control blocks (33) are integrally formed at both ends of the control plate (32). Guide plates (34) are integrally formed on the inner side of the support leg (2). The two guide plates (34) pass through the two control blocks (33) respectively. A placement seat (35) is fixedly connected to one side of the control block (33). The bottom of the support plate (31) extends into the interior of the placement seat (35). A movable sliding joint is slidably connected to the top wall of the support plate (31). Block (36), the bottom of the movable block (36) is integrally formed with an auxiliary frame (37), the bottom of the auxiliary frame (37) is provided with a U-shaped plate (38), the top of the U-shaped plate (38) is fixedly connected with a first electric push rod (39), the first electric push rod (39) extends into the interior of the auxiliary frame (37) and is rotatably connected to the auxiliary frame (37), the inner side of the U-shaped plate (38) is rotatably connected with a connecting rod (391), the outer side of the connecting rod (391) is fixedly connected with a rotating platform (392), the top of the rotating platform (392) is fixedly connected with a rectangular frame (393), the rectangular... The frame (393) has two movable blocks (394) slidably connected inside. The top of the movable blocks (394) is fixedly connected to a base frame (395). The base frame (395) has a lifting plate (396) slidably connected inside. The lifting plate (396) extends out of the base frame (395). The top of the rectangular frame (393) is provided with a door-shaped nail body (397). The bottom of the door-shaped nail body (397) has two slots (398). Both lifting plates (396) extend into the slots (398) and fit against the inner side of the slots (398). The rotating platform (392) Two vertical plates (399) are fixedly connected to the bottom, and a frame plate (381) is slidably connected between the two vertical plates (399). Two fixed rods (382) are rotatably connected to the inner side of the frame plate (381). The fixed rods (382) extend out of the frame plate (381). A rectangular groove (383) is opened at the bottom of the fixed rods (382). A drill rod (384) is provided at the bottom of the fixed rods (382). A rectangular block (385) is integrally formed at the top of the drill rod (384). The rectangular block (385) extends into the rectangular groove (383) and matches the rectangular groove (383).

2. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: A telescopic plate is fixedly connected between the rectangular frame (393) and the rotating platform (392). A bidirectional threaded rod (386) is rotatably connected inside the rectangular frame (393). The bidirectional threaded rod (386) passes through two movable blocks (394) in sequence, and the bidirectional threaded rod (386) is threadedly connected to the two movable blocks (394) respectively. A first motor (387) is fixedly connected to the outside of the rectangular frame (393). The first motor (387) is fixedly connected to one end of the bidirectional threaded rod (386) through its output shaft. A long plate (388) is provided on the top of the rectangular frame (393). Two lifting plates (396) pass through the long plate (388), and the lifting plates (396) and the long plate (388) are slidably connected laterally. A second electric push rod (389) is fixedly connected to the top of the rectangular frame (393). One end of the second electric push rod (389) is fixedly connected to the bottom of the long plate (388).

3. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: The inner side of the frame plate (381) is fixedly connected to a second motor (371), and the second motor (371) is fixedly connected to a first gear (372) through an output shaft. The two fixed rods (382) are both fixedly connected to second gears (373). The first gear (372) is located between the two second gears (373), and the first gear (372) meshes with the two second gears (373) respectively.

4. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: A third electric push rod (374) is fixedly connected to the top of the frame plate (381). One end of the third electric push rod (374) is fixedly connected to the bottom of the rotating platform (392). A fixing bolt (375) is provided on one side of the fixing rod (382). The fixing bolt (375) passes through the fixing rod (382) and the drill rod (384) respectively. The fixing bolt (375) and the fixing rod (382) are connected by threads.

5. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: A third motor (376) is fixedly connected to the outside of the U-shaped plate (38). The third motor (376) is fixedly connected to a third gear (377) through an output shaft. A fourth gear (378) is fixedly connected to the outside of the connecting rod (391). The fourth gear (378) is located at the bottom of the third gear (377) and meshes with the third gear (377).

6. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: The auxiliary frame (37) is fixedly connected to a limiting plate inside, and a movable plate (379) is slidably connected to the outside of the limiting plate. A rack (361) is fixedly connected to the movable plate (379). A fifth gear (362) is fixedly connected to the outside of the first electric push rod (39). The fifth gear (362) is located on one side of the rack (361) and meshes with the rack (361). A fourth electric push rod (363) is fixedly connected inside the auxiliary frame (37). One end of the fourth electric push rod (363) is fixedly connected to the movable plate (379).

7. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: The bottom of the bed (1) is fixedly connected to two rectangular plates, and a first threaded adjusting rod (364) is rotatably connected between the two rectangular plates. The first threaded adjusting rod (364) passes through the control plate (32) and is connected to the control plate (32) by a thread. A fourth motor (365) is fixedly connected to one of the rectangular plates. The fourth motor (365) is fixedly connected to one end of the first threaded rod through an output shaft.

8. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: A second threaded adjusting rod (366) is rotatably connected to the support plate (31). The second threaded adjusting rod (366) passes through the moving block (36) and is threadedly connected to the moving block (36). A fifth motor (367) is fixedly connected to one side wall of the support plate (31). The fifth motor (367) is fixedly connected to one end of the second threaded adjusting rod (366) through its output shaft.

9. The positioning device for an orthopedic portal screw according to claim 1, characterized in that: The support plate (31) has two positioning grooves (4) at its bottom. The placement seat (35) is provided with a positioning component (5). The positioning component (5) includes a connecting plate (51). The connecting plate (51) is slidably connected to the inner side of the placement seat (35). The top of the connecting plate (51) is rotatably connected with a threaded auxiliary rod (52). The threaded auxiliary rod (52) extends out of the placement seat (35) and is threadedly connected to the placement seat (35).

10. The positioning device for an orthopedic portal screw according to claim 9, characterized in that: The bottom of the connecting plate (51) is integrally formed with two positioning rods (53), which extend into the two positioning grooves (4) and match the positioning grooves (4).

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