Nail taking device for orthopedics department

Abstract

The nail taking device comprises a base, a fixing ring is arranged at the upper end of the base, an opening is formed in the upper end of the fixing ring, a nail clamping mechanism used for clamping a steel needle is arranged on the fixing ring, and the steel needle is pulled out through driving of a first telescopic rod after being clamped by the nail clamping mechanism. And when the steel nail is pulled out, the guide mechanism drives the steel nail to rotate back and forth. The leg and the foot of a patient can be supported through the arc-shaped plate and the pedal plate at the upper end of the supporting frame, and the situation that the ankle moves and is hurt when nails are taken out is prevented; angle adjustment can be conducted according to the inclination angle of the steel nail through the annular rotating mechanism and the angle adjusting mechanism, so that the nail pulling angle is the same as the inclination angle of the steel nail. The steel nail can be clamped through the nail clamping mechanism, and the steel nail is pulled out and rotates back and forth through the first telescopic rod and the guide mechanism, so that the discomfort of a patient caused by directly pulling out the steel nail is prevented, the risk of taking out the nail can be reduced, and the steel nail can be taken out conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a nail extraction device for orthopedics. Background Art

[0002] Ankle fractures are a common type of fracture, usually caused by external forces that result in the bones in the ankle area breaking, such as falls, traffic accidents, sports injuries, etc., causing direct external impact on the ankle. For non-displaced or mildly displaced fractures, plaster fixation or brace fixation can be used, combined with drug treatment and rehabilitation training. For fractures with obvious displacement or complex fractures, surgical open reduction may be required, and internal fixation materials such as steel plates and steel pins are used to fix the fracture site. Postoperatively, rehabilitation training is also needed. The steel pins used for the ankle usually refer to Kirschner wires, which are a commonly used medical steel pin for fixing fractures by orthopedic surgeons in clinical practice. Kirschner wires can maintain the stability of the fracture ends and promote fracture healing. During ankle fracture surgery, the doctor will insert the Kirschner wire into the fracture site according to the specific situation of the fracture to fix the fractured bone and prevent bone displacement, creating good conditions for fracture healing.

[0003] After the operation, it is necessary to regularly go to the hospital for reexamination, and observe the fracture healing situation and the position of the steel pin through examination means such as X-rays. According to the fracture healing situation, the time for removing the steel pin is determined. When removing the steel pin, generally, the doctor uses pliers to clamp the outside of the steel pin and pull it outwards. This not only requires a lot of strength but also has high requirements for the doctor's experience. Even an experienced doctor needs to do it several times to pull it out, which is likely to cause secondary injuries to the patient and also increase the psychological pressure on the patient. Summary of the Invention

[0004] The purpose of the present invention is to provide a nail extraction device for orthopedics to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A nail extraction device for orthopedics, including a base, a fixing ring is provided at the upper end of the base, and an opening is provided at the upper end of the fixing ring. A nail clamping mechanism for clamping the steel pin is provided on the fixing ring. After the nail clamping mechanism clamps the steel pin, it is driven by a first telescopic rod to be pulled outwards, and when the steel pin is pulled out, it is driven by a guiding mechanism to rotate the steel pin reciprocally; The guiding mechanism includes a first L-shaped plate, a guiding frame is fixed at the upper end of the first L-shaped plate. The guiding frame includes a guiding plate, a stabilizing plate and a bracket. The guiding plate is located above the stabilizing plate. The bracket is fixedly connected to both ends of the guiding plate and the stabilizing plate. Both the guiding plate and the stabilizing plate are arc-shaped structures, and the guiding plate and the stabilizing plate are coaxial. A wavy guiding groove is provided on the guiding plate; The guiding mechanism further includes a guiding column, and a rotating cylinder is rotatably installed on the outer diameter of the guiding column. The rotating cylinder is located in the guiding groove; A ball mounting plate is provided at the lower end of the guiding column. A plurality of balls are movably mounted at the bottom of the ball mounting plate, and the balls are in rolling connection with the inner diameter of the stabilizing plate. The upper end of the guiding column is fixedly connected to the nail clamping mechanism.

[0006] Preferably, the nail clamping mechanism includes a bottom plate. A first guide rail is provided on one side of the bottom plate. Two sliders are slidably mounted on the first guide rail. Clamping blocks for clamping steel nails are provided on one side of each of the two sliders. An expansion link two is provided below the bottom plate. A driving block for driving the two sliders to approach or move away from each other is provided at the output end of the expansion link two. Two guide grooves are provided on the driving block. The shape of the guide grooves is "eight"-shaped. Driving columns are provided at the lower ends of the two sliders, and the two driving columns are located in the guide grooves. Two guide columns are provided on one side of the driving block. Two guide blocks are provided at the lower end of the bottom plate. The guide columns are slidably connected to the guide blocks.

[0007] Preferably, a fixing block is provided at the lower end of one side of the bottom plate. A first rotating shaft is provided on one side of the fixing block. A limiting block is provided at the outer end of the first rotating shaft. A fixing frame is provided at the output end of the expansion link one. The fixing frame is fixedly connected with a shaft collar. The shaft collar is rotatably connected to the first rotating shaft, and the limiting block is located inside the fixing frame.

[0008] Preferably, a ring-shaped rotating mechanism and an angle adjusting mechanism for adjusting the nail-taking angle are provided on the fixing ring. The angle adjusting mechanism is mounted on the ring-shaped rotating mechanism. The nail clamping mechanism and the guiding mechanism are mounted on the angle adjusting mechanism.

[0009] Preferably, the ring-shaped rotating mechanism includes a ring-shaped guide rail fixedly installed on the front of the fixing ring. A sliding frame is slidably connected to the ring-shaped guide rail. Four groups of rollers are rotatably mounted on the sliding frame. The four groups of rollers are respectively in rolling connection with both sides of the ring-shaped guide rail. A motor is mounted on the sliding frame. A first gear is provided at the output end of the motor. A ring-shaped rack is provided on the back of the fixing ring. The ring-shaped rack is meshed and connected with the first gear.

[0010] Preferably, the angle adjusting mechanism includes an L-shaped plate two. The guiding mechanism is mounted on the L-shaped plate two. Two second rotating shafts are provided on both sides of the L-shaped plate two. The L-shaped plate two is rotatably mounted on the sliding frame through the second rotating shafts. A second gear is provided at one end of the second rotating shaft. A straight rack is slidably connected to one side of the sliding frame. The straight rack is controlled to move through an expansion link three. The second gear is meshed and connected with the straight rack.

[0011] Preferably, a second guide rail is provided at the upper end of the L-shaped plate two. The guiding mechanism is slidably mounted on the L-shaped plate two through an L-shaped plate one. The L-shaped plate one is controlled to approach or move away from the ankle through an expansion link four.

[0012] Preferably, a support frame for supporting the leg is fixed to the upper end of the base, and there is a distance between the support frame and the fixing ring. An arc-shaped plate is provided at the upper end of the support frame. Leg fixing ears are provided on both sides of the arc-shaped plate, and a leg fixing strap for fixing the leg is provided on the leg fixing ears. One end of the leg fixing strap is provided with a magic tape.

[0013] Preferably, a foot adjusting mechanism is provided on the base. The foot adjusting mechanism includes a guide rail three on one side of the base. A moving frame is slidably connected to the guide rail three, and the moving frame is located behind the fixing ring. The moving frame is controlled to move by a telescopic rod five. A footrest for supporting the foot is provided at the upper end of the moving frame, and the moving direction of the footrest is the same as the axial direction of the fixing ring.

[0014] Preferably, foot fixing ears are provided on both sides of the footrest, and a foot fixing strap for fixing the foot is provided on the foot fixing ears. One end of the foot fixing strap is also provided with a magic tape.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can support the leg through the arc-shaped plate at the upper end of the support frame, fix the leg through the leg fixing strap, support the sole of the foot through the foot adjusting mechanism so that the footrest on the moving frame can support the sole of the foot, and fix the foot through the foot fixing strap to prevent the ankle from moving during nail removal and causing injury; The angle can be adjusted according to the inclination angle of the steel nail through the annular rotation mechanism and the angle adjusting mechanism, so that the angle of nail extraction can be the same as the inclination angle of the steel nail; The steel nail can be clamped through the nail clamping mechanism, and then the telescopic rod one and the guiding mechanism are used to make the steel nail do a reciprocating rotation action while being pulled out, preventing the direct extraction of the steel nail from causing discomfort to the patient, reducing the risk of nail removal, and facilitating the removal of the steel nail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 is a schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 is a schematic diagram of the structure of the fixing ring of the present invention Figure 1 ; Figure 4 is a schematic diagram of the structure of the fixing ring of the present invention Figure 2 ; Figure 5 is a schematic diagram of the nail clamping mechanism, guiding mechanism, annular rotation mechanism and angle adjusting mechanism of the present invention Figure 1 ; Figure 6Schematic diagram of the nail clamping mechanism, guiding mechanism, annular rotating mechanism and angle adjusting mechanism of the present invention Figure 2 ; Figure 7 Schematic diagram of the nail clamping mechanism and guiding mechanism of the present invention Figure 1 ; Figure 8 Schematic diagram of the nail clamping mechanism and guiding mechanism of the present invention Figure 2 ; Figure 9 Cross-sectional view of the nail clamping mechanism and guiding mechanism of the present invention; Figure 10 Partial schematic diagram of the nail clamping mechanism and guiding mechanism of the present invention; Figure 11 Schematic diagram of the guiding frame structure of the present invention.

[0017] In the figure: 1, base; 2, fixed ring; 3, nail clamping mechanism; 31, bottom plate; 32, first guide rail; 33, slider; 34, clamping block; 35, driving column; 36, second telescopic rod; 37, driving block; 38, guide groove; 39, guide post; 310, guide block; 4, first telescopic rod; 41, fixed frame; 42, collar; 43, fixed block; 44, first rotating shaft; 45, limit block; 5, guiding mechanism; 51, first L-shaped plate; 52, guiding frame; 521, guiding plate; 522, stabilizing plate; 523, bracket; 524, guiding groove; 53, guiding post; 54, rotating cylinder; 55, ball mounting plate; 56, ball; 6, annular rotating mechanism; 61, annular guide rail; 62, sliding frame; 63, roller; 64, motor; 65, first gear; 66, annular rack; 7, angle adjusting mechanism; 71, second L-shaped plate; 72, second rotating shaft; 73, second gear; 74, straight rack; 75, third telescopic rod; 8, fourth telescopic rod; 81, second guide rail; 9, foot adjusting mechanism; 91, third guide rail; 92, moving frame; 93, fifth telescopic rod; 94, foot pedal; 95, foot fixing ear; 96, foot fixing strap; 10, support frame; 101, arc-shaped plate; 102, leg fixing ear; 103, leg fixing strap. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-11, the present invention provides a technical solution: an orthopedic nail removal device, including a base 1, a fixing ring 2 is provided at the upper end of the base 1, and an opening is provided at the upper end of the fixing ring 2. A support frame 10 for supporting the leg is fixed at the upper end of the base 1, and there is a distance between the support frame 10 and the fixing ring 2. An arc-shaped plate 101 is provided at the upper end of the support frame 10, leg fixing ears 102 are provided on both sides of the arc-shaped plate 101, and a leg fixing belt 103 for fixing the leg is provided on the leg fixing ears 102. One end of the leg fixing belt 103 is provided with a magic tape; A foot adjusting mechanism 9 is provided on the base 1. The foot adjusting mechanism 9 includes a guide rail three 91 on one side of the base 1. A moving frame 92 is slidably connected to the guide rail three 91, and the moving frame 92 is located behind the fixing ring 2. The moving frame 92 is controlled to move by a telescopic rod five 93. A foot pedal 94 for supporting the foot is provided at the upper end of the moving frame 92, and the moving direction of the foot pedal 94 is the same as the axis direction of the fixing ring 2. Foot fixing ears 95 are provided on both sides of the foot pedal 94, and a foot fixing belt 96 for fixing the foot is provided on the foot fixing ears 95. One end of the foot fixing belt 96 is also provided with a magic tape.

[0020] Among them, the arc-shaped plate 101 at the upper end of the support frame 10 is used to support the leg, and the foot pedal 94 on the moving frame 92 is used to support the sole of the foot. Before removing the nail from the ankle, first place the lower leg on the arc-shaped plate 101 so that the toes face upwards. The opening at the upper end of the fixing ring 2 can avoid the toes. Then place the ankle between the fixing ring 2 and the arc-shaped plate 101, and then fine-tune the specific position of the ankle according to the position and inclination direction of the steel nail. When the position of the foot is determined, the telescopic rod five 93 is used to drive the moving frame 92 to move on the guide rail three 91, so that the foot pedal 94 approaches the foot and supports the sole of the foot. Then the foot is fixed by the foot fixing belt 96, and the leg is fixed by the leg fixing belt 103 to prevent the ankle from moving during nail removal and causing injury.

[0021] A nail clamping mechanism 3 for clamping the steel needle is provided on the fixing ring 2. After the nail clamping mechanism 3 clamps the steel needle, it is driven by a telescopic rod one 4 to be pulled outwards. When the steel nail is pulled out, the steel nail is driven to rotate reciprocally by a guiding mechanism 5. A circular rotating mechanism 6 and an angle adjusting mechanism 7 for adjusting the nail removal angle are also provided on the fixing ring 2. The angle adjusting mechanism 7 is installed on the circular rotating mechanism 6, and the nail clamping mechanism 3 and the guiding mechanism 5 are installed on the angle adjusting mechanism 7.

[0022] Among them, according to the fracture condition of the ankle, the fixing direction of the steel nail is generally inclined. Therefore, when removing the steel nail, it needs to be pulled out along the direction of the steel nail. If the pulling direction of the nail is too different from the fixing direction of the steel nail, it is easy to cause secondary injury to the patient. Therefore, a ring rotation mechanism 6 and an angle adjustment mechanism 7 are set to adjust the nail removal angle. After the nail removal angle is adjusted, the steel nail is clamped by the nail clamping mechanism 3, and then the nail clamping mechanism 3 is driven to move by the first telescopic rod 4, so that the steel nail on the ankle is pulled out.

[0023] The nail clamping mechanism 3 includes a bottom plate 31. One side of the bottom plate 31 is provided with a first guide rail 32. Two sliders 33 are slidably installed on the first guide rail 32. One side of each of the two sliders 33 is provided with a clamping block 34 for clamping the steel nail. A second telescopic rod 36 is arranged below the bottom plate 31. The output end of the second telescopic rod 36 is provided with a driving block 37 for driving the two sliders 33 to approach or move away from each other. Two guide grooves 38 are arranged on the driving block 37. The shape of the guide grooves 38 is "eight"-shaped. The lower ends of the two first sliders 33 are both provided with driving columns 35. The two driving columns 35 are located in the guide grooves 38. One side of the driving block 37 is provided with two guide posts 39. The lower end of the bottom plate 31 is provided with two guide blocks 310. The guide posts 39 are slidably connected with the guide blocks 310; The guiding mechanism 5 includes an L-shaped first plate 51. A guiding frame 52 is fixed to the upper end of the L-shaped first plate 51. The guiding frame 52 includes a guiding plate 521, a stabilizing plate 522 and a bracket 523. The guiding plate 521 is located above the stabilizing plate 522. The bracket 523 is fixedly connected to both ends of the guiding plate 521 and the stabilizing plate 522. Both the guiding plate 521 and the stabilizing plate 522 are arc-shaped structures, and the guiding plate 521 and the stabilizing plate 522 are coaxial. A guiding groove 524 in the shape of a wavy line is arranged on the guiding plate 521; The guiding mechanism 5 further includes a guiding post 53. A rotating cylinder 54 is rotatably installed on the outer diameter of the guiding post 53. The rotating cylinder 54 is located in the guiding groove 524. A ball mounting plate 55 is arranged at the lower end of the guiding post 53. A plurality of balls 56 are movably installed at the bottom of the ball mounting plate 55. The balls 56 are in rolling connection with the inner diameter of the stabilizing plate 522. The upper end of the guiding post 53 is fixedly connected to the nail clamping mechanism 3; One side of the lower end of the bottom plate 31 is provided with a fixing block 43. One side of the fixing block 43 is provided with a first rotating shaft 44. A limiting block 45 is arranged at the outer end of the first rotating shaft 44. The output end of the first telescopic rod 4 is provided with a fixing frame 41. The fixing frame 41 is fixedly connected with a shaft collar 42. The shaft collar 42 is rotatably connected with the first rotating shaft 44, and the limiting block 45 is located inside the fixing frame 41.

[0024] Among them, the telescopic rod two 36 controls the movement of the driving block 37, causing the driving posts 35 on the two sliders 33 to slide within the guide grooves 38. The "eight"-shaped guide grooves 38 enable the two sliders 33 to approach each other, enabling the two clamping blocks 34 to clamp the steel nail. After the nail clamping mechanism 3 clamps the steel nail, the telescopic rod one 4 drives the nail clamping mechanism 3 to move and pull out the steel nail outward. During the movement of the nail clamping mechanism 3, the bottom plate 31 and the fixing block 43 at the lower end of the bottom plate 31 move simultaneously, causing the guide post 53 to move, causing the rotating cylinder 54 on the guide post 53 to move within the guide groove 524. Since the guide plate 521 is an arc-shaped structure and the guide groove 524 is in a wavy shape, the fixing block 43 will rotate reciprocally during the movement, causing the nail clamping mechanism 3 to rotate reciprocally during the movement, causing the steel nail to rotate reciprocally while being pulled out. Since the steel nail is fixed tightly in the body, directly pulling it out will cause discomfort to the patient. Therefore, when the doctor uses pliers to pull out the nail, the steel nail will also be rotated simultaneously. Therefore, through the guiding mechanism 5, the steel nail rotates reciprocally while being taken out, which can reduce the risk of nail removal and facilitate the removal of the steel nail. While the nail clamping mechanism 3 moves and rotates reciprocally, the balls 56 at the bottom of the ball mounting plate 55 roll within the stabilizing plate 522, which can support the nail clamping mechanism 3 and improve the stability of the guiding mechanism 5. When the telescopic rod one 4 drives the nail clamping mechanism 3 to move, the bottom plate 31 will rotate. Therefore, the telescopic rod one 4 is rotationally connected to the rotating shaft one 44 on the fixing block 43 through the collar 42 at the output end, so that the rotation of the bottom plate 31 will not be affected during the movement.

[0025] The annular rotating mechanism 6 includes an annular guide rail 61 fixedly installed on the front surface of the fixed ring 2. A sliding frame 62 is slidably connected to the annular guide rail 61. Four groups of rollers 63 are rotatably installed on the sliding frame 62. The four groups of rollers 63 are respectively in rolling connection with both sides of the annular guide rail 61. A motor 64 is installed on the sliding frame 62. A gear one 65 is provided at the output end of the motor 64. An annular rack 66 is provided on the back surface of the fixed ring 2. The annular rack 66 is in meshing connection with the gear one 65.

[0026] Among them, since the angle of the steel nail is generally inclined, the annular rotating mechanism 6 can be adjusted according to the inclination angle of the steel nail. The motor 64 can drive the gear one 65 to rotate. Through the annular rack 66, the sliding frame 62 can slide on the annular guide rail 61. At the same time, the four groups of rollers 63 roll on the annular guide rail 61, enabling the nail clamping mechanism 3 and the guiding mechanism 5 to rotate around the fixed ring 2 as the center. Therefore, the angle can be adjusted according to the inclination direction of the steel nail.

[0027] The angle adjustment mechanism 7 includes a second L-shaped plate 71. The guiding mechanism 5 is installed on the second L-shaped plate 71. Two sides of the second L-shaped plate 71 are provided with second rotating shafts 72, and the second L-shaped plate 71 is rotationally installed on the sliding frame 62 through the second rotating shafts 72. One end of each second rotating shaft 72 is provided with a second gear 73. One side of the sliding frame 62 is slidably connected with a straight rack 74. The straight rack 74 is controlled to move through a third telescopic rod 75. The second gear 73 is meshed with the straight rack 74. The upper end of the second L-shaped plate 71 is provided with a second guide rail 81. The guiding mechanism 5 is slidably installed on the second L-shaped plate 71 through the first L-shaped plate 51. The first L-shaped plate 51 is driven by a fourth telescopic rod 8 to approach or move away from the ankle.

[0028] Among them, the angle adjustment mechanism 7 can adjust the angle of the nail clamping mechanism 3 and the guiding mechanism 5 in another direction. By driving the straight rack 74 to move through the third telescopic rod 75, the second gear 73 rotates, causing the second L-shaped plate 71 to rotate, and the nail clamping mechanism 3 and the guiding mechanism 5 installed on the second L-shaped plate 71 to rotate. Therefore, the angle of the nail clamping mechanism 3 and the guiding mechanism 5 can be adjusted in another direction. After the angle adjustment in two directions, by driving the first L-shaped plate 51 to move through the fourth telescopic rod 8, the nail clamping mechanism 3 can approach the steel nail at the ankle. The two clamping blocks 34 of the nail clamping mechanism 3 can approach the steel nail and clamp the steel nail. Then, the steel nail is pulled out through the first telescopic rod 4 and the guiding mechanism 5, and finally, the steel nail at the ankle is taken out.

[0029] The working principle and usage process of the present invention: Before removing the nail from the ankle, it is first necessary to fix the ankle. Place the calf on the arc-shaped plate 101 so that the toe direction is upward, and the opening at the upper end of the fixing ring 2 can avoid the toes. Then place the ankle between the fixing ring 2 and the arc-shaped plate 101, and then finely adjust the specific position of the ankle according to the position and inclination direction of the steel nail. When the position of the foot is determined, drive the moving frame 92 to move on the third guide rail 91 through the fifth telescopic rod 93, so that the foot pedal 94 approaches the foot and supports the sole of the foot. Then fix the foot through the foot fixing belt 96 and fix the leg through the leg fixing belt 103 to prevent the ankle from moving during nail removal, which may cause injury. Then adjust the nail removal angle. According to the fracture condition of the ankle, the fixing direction of the steel nail is generally inclined. Therefore, when removing the steel nail, it is necessary to pull it out along the direction of the steel nail. If the nail pulling direction is too different from the fixing direction of the steel nail, it is easy to cause secondary injury to the patient. Therefore, adjust the nail removal angle through the annular rotation mechanism 6 and the angle adjustment mechanism 7 so that the telescopic direction of the first telescopic rod 4 is the same as the nail pulling direction of the steel nail. Finally, take out the nail. Control the movement of the L-shaped plate 51 through the telescopic rod 48, so that the nail clamping mechanism 3 and the guiding mechanism 5 approach the steel nail. Clamp the steel nail through the nail clamping mechanism 3, and then drive the nail clamping mechanism 3 and the guiding mechanism 5 to move through the telescopic rod 14, so that the steel nail is pulled out. At the same time when the steel nail is pulled out, make the steel nail rotate reciprocally through the guiding mechanism 5, which can reduce the risk of taking out the nail and facilitate the removal of the steel nail.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An orthopedic nail removal device, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a fixing ring (2), and the upper end of the fixing ring (2) is provided with an opening. The fixing ring (2) is provided with a clamping nail mechanism (3) for clamping the steel needle. After the clamping nail mechanism (3) clamps the steel needle, it is driven to be pulled outward by a telescopic rod (4), and when the steel needle is pulled out, the guide mechanism (5) drives the steel needle to reciprocate. The guide mechanism (5) comprises an L-plate (51), a guide frame (52) being fixed at the upper end of the L-plate (51), the guide frame (52) comprising a guide plate (521), a stabilizing plate (522) and a bracket (523), the guide plate (521) being located above the stabilizing plate (522), the bracket (523) being fixedly connected to both ends of the guide plate (521) and the stabilizing plate (522), the guide plate (521) and the stabilizing plate (522) both being arc-shaped structures, and the guide plate (521) and the stabilizing plate (522) being coaxial, and a wave-shaped guide groove (524) being provided on the guide plate (521); The guide mechanism (5) further comprises a guide column (53), a rotating drum (54) being rotatably mounted on the outer diameter of the guide column (53), and the rotating drum (54) is located in the guide groove (524); A ball mounting plate (55) is provided at the lower end of the guide column (53), a plurality of balls (56) are movably mounted on the bottom of the ball mounting plate (55), and the balls (56) are rollingly connected to the inner diameter of the stabilizing plate (522); The upper end of the guide column (53) is fixedly connected to the clamping nail mechanism (3).

2. The orthopedic nail removal device according to claim 1, characterized in that: The nail clamping mechanism (3) comprises a bottom plate (31), one side of the bottom plate (31) is provided with a guide rail 1 (32), the guide rail 1 (32) is slidably mounted with two sliders (33), and one side of the two sliders (33) is provided with a clamping block (34) for clamping the steel nails; A second telescopic rod (36) is provided below the bottom plate (31); a driving block (37) for driving the two sliders (33) to move closer to or farther from each other is provided at the output end of the second telescopic rod (36); two guide grooves (38) are provided on the driving block (37); the guide grooves (38) are in an "eight" shape; a driving column (35) is provided at the lower end of each of the two sliders (33); the two driving columns (35) are located in the guide grooves (38); Two guide pillars (39) are provided on one side of the driving block (37), and two guide blocks (310) are provided at the lower end of the bottom plate (31), and the guide pillars (39) are slidably connected to the guide blocks (310).

3. The orthopedic nail removal device according to claim 2, characterized in that: A fixing block (43) is provided at the lower end of one side of the bottom plate (31), a rotating shaft (44) is provided at one side of the fixing block (43), a limiting block (45) is provided at the outer end of the rotating shaft (44), a fixing frame (41) is provided at the output end of the telescopic rod (4), a shaft ring (42) is fixedly connected to the fixing frame (41), the shaft ring (42) is rotatably connected to the rotating shaft (44), and the limiting block (45) is located inside the fixing frame (41).

4. The orthopedic nail removal device according to claim 1, characterized in that: The fixing ring (2) is provided with an annular rotating mechanism (6) and an angle adjusting mechanism (7) for adjusting the nail removal angle; the angle adjusting mechanism (7) is mounted on the annular rotating mechanism (6); and the nail clamping mechanism (3) and the guide mechanism (5) are mounted on the angle adjusting mechanism (7).

5. The orthopedic nail removal device according to claim 4, characterized in that: The annular rotating mechanism (6) comprises an annular guide rail (61) fixedly mounted on the front face of the fixed ring (2); the annular guide rail (61) is slidably connected to a sliding frame (62); four groups of rollers (63) are rotatably mounted on the sliding frame (62); the four groups of rollers (63) are respectively rollingly connected to two sides of the annular guide rail (61); A motor (64) is mounted on the sliding frame (62), a gear 1 (65) is provided at the output end of the motor (64), an annular rack (66) is provided on the back of the fixing ring (2), and the annular rack (66) is meshingly connected with the gear 1 (65).

6. The orthopedic nail removal device according to claim 5, characterized in that: The angle adjustment mechanism (7) comprises an L-plate 2 (71), the guide mechanism (5) is mounted on the L-plate 2 (71), two rotating shafts (72) are provided on both sides of the L-plate 2 (71), and the L-plate 2 (71) is rotatably mounted on the sliding frame (62) via the rotating shaft 2 (72), one end of the rotating shaft 2 (72) is provided with a gear 2 (73), one side of the sliding frame (62) is slidably connected with a spur rack (74), the spur rack (74) is controlled to move via a telescopic rod 3 (75), and the gear 2 (73) is meshingly connected with the spur rack (74).

7. The orthopedic nail removal device according to claim 6, characterized in that: A guide rail 2 (81) is provided at the upper end of the L-plate 2 (71), and the guide mechanism (5) is slidably mounted on the L-plate 2 (71) via the L-plate 1 (51), and the L-plate 1 (51) is controlled to move closer to or farther from the ankle via the telescopic rod 4 (8).

8. The orthopedic nail removal device according to claim 1, characterized in that: A support frame (10) for supporting the legs is fixed at the upper end of the base (1), and a distance is provided between the support frame (10) and the fixing ring (2). An arc-shaped plate (101) is provided at the upper end of the support frame (10), and leg fixing ears (102) are provided on both sides of the arc-shaped plate (101). Leg fixing belts (103) for fixing the legs are provided on the leg fixing ears (102), and one end of the leg fixing belt (103) is provided with a Velcro.

9. The orthopedic nail removal device according to claim 1, characterized in that: The base (1) is provided with a foot adjustment mechanism (9), the foot adjustment mechanism (9) comprising a guide rail three (91) located on one side of the base (1), a movable frame (92) being slidably connected to the guide rail three (91), and the movable frame (92) is located at the rear side of the fixed ring (2), the movable frame (92) is controlled to move by a telescopic rod five (93), a foot pedal (94) for supporting the foot is provided at the upper end of the movable frame (92), and the moving direction of the foot pedal (94) is the same as the axial direction of the fixed ring (2).

10. The orthopedic nail removal device according to claim 9, characterized in that: Foot fixing ears (95) are provided on both sides of the foot pedal (94), and foot fixing ears (95) are provided with foot fixing belts (96) for fixing the feet, and one end of the foot fixing belt (96) is also provided with a Velcro.

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