An orthopedic surgery multi-angle automatic nail extraction device

Abstract

The present invention discloses a multi-angle automatic nail removal device for orthopedic surgery, comprising a robotic arm assembly, the robotic arm assembly including a mounting seat, a support body mounted on the top pivot portion of the mounting seat, and a rotating shaft assembly mounted on one side of the support body. The multi-angle automatic nail removal device for orthopedic surgery realizes forward and backward displacement of the top plate under the push of a cavity column and an electric push rod, and the arc-shaped push block provided on the upper surface thereof expands outward, and its circular expansion mechanism is inserted into the cavity of the fractured bone nail, thereby making contact with the fractured bone nail cavity and extracting the fractured bone nail from the bone body. When the roller moves toward the right side of the notch of the strip groove, the clamping hand connected to one end thereof expands outward, and the cortical part is stretched open, thereby facilitating the extraction of the fractured bone nail from the bone body.

Description

Technical Field

[0001] The present invention relates to the field of orthopedics, and in particular to a multi-angle automatic nail removing device for orthopedic surgery. Background Technique

[0002] Bone nails are non-active surgical metal implants for bone fixation, including cortical bone nails, full-threaded, half-threaded and cancellous bone nails, which are applied to stabilize new fractures, revision surgeries, arthrodesis, and reconstruction of small bones in the foot, ankle and toes, and can be used for adult and pediatric patients. Bone nails need to be removed later and need to be extracted with the help of a bone nail remover.

[0003] However, there are some deficiencies in a traditional multi-angle automatic nail removing device for orthopedic surgery on the market at present. In the prior art, when removing nails from bones, a clamping and pulling mechanism is usually used to assist in nail removal. However, when the bone nail breaks under the pulling state, other equipment still needs to be operated to remove the residual bone nail in the bone, and the process is cumbersome, and its structure is not optimized enough and the design is not reasonable enough. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-angle automatic nail removing device for orthopedic surgery to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-angle automatic nail removing device for orthopedic surgery, including a robotic arm assembly. The robotic arm assembly includes a mounting base. A support body is installed at the pivotal part of the top end of the mounting base. A first rotating shaft assembly is installed at the upper part of one side of the support body. One end of the first rotating shaft assembly is installed with a first robotic arm. One end of the first robotic arm is installed with a second rotating shaft assembly. A connecting seat is installed on one side of the second rotating shaft assembly. A motor is installed on the back of the connecting seat. A second robotic arm is installed at the front end of the connecting seat. A top seat is installed at the driving head part of the second robotic arm. A support plate is fixedly connected to the front facade of the top seat, and a rotating mechanism is arranged on the front facade of the support plate. A clamping mechanism is arranged in front of the rotating mechanism. A bone rod is arranged below the clamping mechanism.

[0007] As a further scheme of the present invention: A bone body is arranged on one side of the bone rod. Bone nails are arranged on both sides of the fracture part of the bone body. One end of the bone nail penetrates through the outer wall of the bone rod and is fixedly connected to the outer wall of the bone body.

[0008] As a further solution of the present invention: The rotating mechanism includes a gear shaft box and a telescopic rod. A tooth opening is provided on the outer wall of the driving rod of the telescopic rod, and the tooth opening meshes with the built-in toothed ring rod of the gear shaft box. A rotating column is rotatably connected to the top end of the gear shaft box. A connecting shaft is welded to the front end of the rotating column, and the front end of the connecting shaft is fixedly connected to the back surface of the clamping mechanism.

[0009] As a further solution of the present invention: The clamping mechanism includes a positioning block. A displacement tube is fixedly connected to the front end of the upper surface of the positioning block. A docking rod is slidably arranged in the inner cavity of the displacement tube. A docking plate is welded to the top end of the docking rod. An electric push rod is installed at the central part of the upper surface of the docking plate.

[0010] As a further solution of the present invention: An electric telescopic rod is installed at the middle part of the upper surface of the clamping mechanism. A chassis is installed at the pushing end of the electric telescopic rod. A frame is fixedly connected to one end of the chassis. The frame and the outer periphery of the docking plate are fixedly connected by a connecting rod. An installation cavity tube is installed at the bottom end of the docking plate. A fixed disk is welded to the bottom end of the installation cavity tube.

[0011] As a further solution of the present invention: A concave block is fixedly connected to one end of the telescopic column. A welding plate is welded to the lower part of the front end of the first shaft seat. A clamping hand is arranged at the clamping end of the concave block. A storage battery is installed at the middle part of the inner cavity of the concave block. A touch switch is installed at the opening end of the storage battery.

[0012] As a further solution of the present invention: Strip grooves are provided on the outer walls of the left and right sides of the concave block. A push plate is slidably connected to the notch part of the strip groove. A squeezing rod is welded to the central part of the push plate. Spring cylinders are fixedly connected to the upper and lower parts of the right arm of the push plate and the right side of the notch of the strip groove.

[0013] As a further solution of the present invention: A roller is rotatably connected to the sliding groove part of the strip groove. Groove clamping blocks are connected to the upper and lower ends of the roller through shaft columns. An expanded U-shaped part is welded to one end of the groove clamping block. A shaft column is installed on the inner shaft part of the expanded U-shaped part. A welding plate is arranged below the shaft column. The shaft column is rotatably connected to the upper surface of the welding plate.

[0014] As a further solution of the present invention: a cavity column is installed at the top of the storage battery, a circular expansion mechanism is arranged in front of the cavity column, a top plate is arranged at the telescopic rod part of the cavity column, a conduit is installed at the upper part of one side of the cavity column, an opening support plate is installed on the upper surface of the conduit, and a spring column is installed on the upper surface of the opening support plate. An electric push rod is installed at the top of the spring column, a push shaft is installed at the driving end of the electric push rod, a mounting disc is fixedly connected to the outer wall of the push shaft, a groove block is welded on the outer wall of the mounting disc, a hinge block is hinged at the notch part of the groove block, and the hinge block is hinged at the bottom end of the hinge block. A hinge seat is provided, a slider is welded at the bottom end of the hinge seat, chute blocks are slidably arranged on both sides of the slider, a top plate is welded at the bottom end of the chute block, an arc-shaped push block is welded at the front end of the upper surface of the slider, and spring rods are fixedly connected to the outer peripheral parts of the two top plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the present invention, the telescopic force of the electric push rod is strengthened. After the concave block receives the increased telescopic power, the push plate at the strip groove opened on both sides of the concave block will contact the roller, and after the roller swings to a certain angle under the block, it will push the push plate to move towards the touch switch. The spring cylinder and the extrusion rod arranged between the push plate and the touch switch, the spring cylinder is used for resetting, and the extrusion rod is used for contacting the touch switch and turning on the touch switch to control the storage battery to input electric energy into the inner cavity of the cavity column. The driving end of the cavity column will expand and contract, driving the top plate to move up and down. Part of the wire passes through the conduit and is introduced into the electric push rod, and the push shaft connected to the driving end of the electric push rod is controlled to drive the mounting disc to move downward. After the mounting disc moves downward, the groove block connected to the outer wall of the mounting disc will be pressed downward, and the hinge seat hinged at the bottom end of the hinge block will drive the slider to move outward and backward on the chute block, and expand the arc-shaped push block outward. Its structure is more optimized and the design is more reasonable.

[0017] In the present invention, under the push of the cavity column and the electric push rod, the front and back displacement of the top plate is realized, and the arc-shaped push block arranged on its upper surface expands outward. Insert the circular expansion mechanism into the cavity of the bone nail fracture part, and it can contact the bone nail fracture cavity, and realize extracting the fractured bone nail from the bone body. When the roller moves towards the right side of the notch of the strip groove, the clamping hand connected to one end of it expands outward, and realizes the expansion of the cortex part, which is convenient for extracting the fractured bone nail from the bone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a multi-angle automatic nail extraction device for orthopedic surgery.

[0019] Figure 2 It is a structural diagram of a clamping mechanism in a multi-angle automatic nail extraction device for orthopedic surgery.

[0020] Figure 3 It is a partial exploded view of a clamping mechanism in a multi-angle automatic nail extraction device for orthopedic surgery.

[0021] Figure 4 It is a top view of a clamping mechanism in a multi-angle automatic nail extraction device for orthopedic surgery.

[0022] Figure 5 It is in a multi-angle automatic nail extraction device for orthopedic surgery Figure 3 Enlarged view of part A.

[0023] Figure 6 It is a structural diagram of a circular expansion mechanism in a multi-angle automatic nail extraction device for orthopedic surgery.

[0024] Figure 7 It is a structural diagram of a top plate in a multi-angle automatic nail extraction device for orthopedic surgery.

[0025] In the figure: robotic arm assembly 1, mounting seat 2, support body 3, first rotating shaft assembly 4, first robotic arm 5, second rotating shaft assembly 6, motor 7, connecting seat 8, second robotic arm 9, top seat 10, rotating mechanism 11, clamping mechanism 12, bone body 13, bone rod 14, bone nail 15, rotating column 16, telescopic rod 17, gear shaft box 18, connecting shaft 19, spring rod 20, arc-shaped push block 21, slider 22, hinge block 23, push shaft 24, mounting plate 25, groove block 26, electric push rod 27, spring column 28, conduit 29, cavity column 30, top plate 31, chute block 32, hinge seat 33, docking rod 34, electric telescopic rod 35, positioning block 36, displacement tube 37, chassis 38, frame 39, electric push rod 40, docking plate 41, mounting cavity tube 42, concave block 43, clamping hand 44, fixed plate 45, first shaft seat 46, telescopic column 47, second shaft seat 48, storage battery 49, groove clamping block 50, roller 51, extrusion rod 52, welding plate 53, U-shaped expansion part 54, shaft column 55, touch switch 56, spring cylinder 57, push plate 58, circular expansion mechanism 59, strip groove 60. Detailed implementation manners

[0026] 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 fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 7, in the embodiments of the present invention, an orthopedic surgery multi-angle automatic nail removal device includes a robotic arm assembly 1. The robotic arm assembly 1 includes a mounting base 2. At the pivotal part at the top of the mounting base 2, a support body 3 is installed. On the upper part of one side of the support body 3, a first rotating shaft assembly 4 is installed. At one end of the first rotating shaft assembly 4, a first robotic arm 5 is installed. At one end of the first robotic arm 5, a second rotating shaft assembly 6 is installed. On one side of the second rotating shaft assembly 6, a connecting seat 8 is installed. On the back of the connecting seat 8, a motor 7 is installed. At the front end of the connecting seat 8, a second robotic arm 9 is installed. At the driving head part of the second robotic arm 9, a top seat 10 is installed. On the front facade of the top seat 10, a support plate is fixedly connected, and a rotating mechanism 11 is arranged on the front facade of the support plate. In front of the rotating mechanism 11, a clamping mechanism 12 is arranged. Below the clamping mechanism 12, a bone rod 14 is arranged. On one side of the bone rod 14, a bone body 13 is arranged. On both sides of the fracture part of the bone body 13, bone nails 15 are arranged. One end of the bone nail 15 penetrates through the outer wall of the bone rod 14 and is fixedly connected to the outer wall of the bone body 13. The rotating mechanism 11 includes a gear shaft box 18 and a telescopic rod 17. On the outer wall of the driving rod of the telescopic rod 17, a tooth opening is provided, and the tooth opening meshes with the internal toothed ring rod of the gear shaft box 18. At the top of the gear shaft box 18, a rotating column 16 is rotatably connected. At the front end of the rotating column 16, a connecting shaft 19 is welded. The front end of the connecting shaft 19 is fixedly connected to the back of the clamping mechanism 12. The clamping mechanism 12 includes a positioning block 36. At the front end of the upper surface of the positioning block 36, a displacement tube 37 is fixedly connected. Inside the cavity of the displacement tube 37, a docking rod 34 is slidably arranged. At the top of the docking rod 34, a docking plate 41 is welded. At the center of the upper surface of the docking plate 41, an electric push rod 40 is installed. In the middle of the upper surface of the clamping mechanism 12, an electric telescopic rod 35 is installed. At the pushing end of the electric telescopic rod 35, a chassis 38 is installed. At one end of the chassis 38, a frame 39 is fixedly connected. The frame 39 and the peripheral part of the docking plate 41 are fixedly connected by a connecting rod. At the bottom end of the docking plate 41, an installation cavity tube 42 is installed. At the bottom end of the installation cavity tube 42, a fixed disk 45 is welded. At one end of a telescopic column 47, an inward concave block 43 is fixedly connected. At the lower part of the front end of a first shaft seat 46, a welding plate 53 is welded. At the clamping end of the inward concave block 43, a clamping hand 44 is arranged. In the middle part of the cavity of the inward concave block 43, a storage battery 49 is installed. At the opening end of the storage battery 49, a touch switch 56 is installed. On the outer walls on both the left and right sides of the inward concave block 43, a strip groove 60 is provided. At the notch part of the strip groove 60, a push plate 58 is slidably connected. At the center of the push plate 58, a squeezing rod 52 is welded. On the upper and lower parts of the right arm of the push plate 58 and the right side of the notch of the strip groove 60, a spring cylinder 57 is fixedly connected. In the sliding groove part of the strip groove 60, a roller 51 is rotatably connected. The upper and lower ends of the roller 51 are connected by a shaft column to a groove clamping block 50. At one end of the groove clamping block 50, an expanded U-shaped part 54 is welded. On the inner shaft part of the expanded U-shaped part 54, a shaft column 55 is installed. Below the shaft column 55, there is a welding plate 53. The shaft column 55 is rotatably connected to the upper surface of the welding plate 53. At the top of the storage battery 49, a cavity column 30 is installed. In front of the cavity column 30, a circular expansion mechanism 59 is arranged.On the telescopic rod part of the cavity column 30, there is a top plate 31. On the upper part of one side of the cavity column 30, a conduit 29 is installed. On the upper surface of the conduit 29, there is an opening support plate, and on the upper surface of the opening support plate, a spring column 28 is installed. At the top of the spring column 28, an electric push rod 27 is installed. At the driving end of the electric push rod 27, a push shaft 24 is installed. On the outer wall of the push shaft 24, a mounting plate 25 is fixedly connected. On the outer wall of the mounting plate 25, a groove block 26 is welded. At the notch part of the groove block 26, a hinge block 23 is hinged. At the bottom end of the hinge block 23, a hinge seat 33 is hinged. At the bottom end of the hinge seat 33, a slider 22 is welded. On both sides of the slider 22, there are sliding groove blocks 32. At the bottom end of the sliding groove block 32, a top plate 31 is welded. At the front end of the upper surface of the slider 22, an arc-shaped push block 21 is welded. At the peripheral part of the two top plates 31, a spring rod 20 is fixedly connected.,

[0028] The working principle of the present invention is: Place the person on the operating table. Next, it is necessary to loosen the bone nail 15 and separate the bone rod 14 and the bone body 13;

[0029] Process: Control the rotation of the mounting seat 2 to drive the support body 3 to rotate. Control the operation of the rotating shaft assembly one 4 and the rotating shaft assembly two 6 to drive the swinging of the robotic arm one 5 and the connecting seat 8. Control the operation of the motor 7 to drive the flipping of the robotic arm two 9. Since the robotic arm two 9 and the top seat 10 are hinged, the swinging of the top seat 10 is realized, and multi-angle adjustment is achieved;

[0030] When separating the bone rod 14 and the bone body 13, it means that the bone nail 15 is disengaged from the outer wall of the bone rod 14. Specifically: It is necessary to adjust the robotic arm assembly 1 to a position on the same horizontal plane as the bone nail 15;

[0031] Control the telescopic rod of the telescopic rod 17 to extend and retract. The tooth openings provided on the telescopic rod will drive the gear ring rod inside the gear shaft box 18 to engage and rotate. One end of the gear ring rod is fixed to the rotating column 16, so as to control the rotation of the rotating column 16 and the connecting shaft 19. When the connecting shaft 19 rotates, it will drive the clamping mechanism 12 to rotate;

[0032] Thus, the clamping mechanism 12 is rotated to a direction where it is on the same horizontal plane as the pre-bone nail 15;

[0033] Next: It is necessary to control the clamping hand 44 in the clamping mechanism 12 to clamp the bone nail 15 and the electric telescopic rod 35 on the clamping mechanism 12 to operate, and draw out the bone nail 15 from the bone body 13 to realize the separation of the bone rod 14 and the bone body 13;

[0034] Specifically: the electric telescopic rod 35 is controlled to operate, driving the chassis 38 to pull the docking plate 41 to move rearward of the upper surface of the positioning block 36. The docking rod 34 connected to the outer side of the back of the docking plate 41 will move in the inner cavity of the displacement tube 37. When the docking plate 41 is pulled backward, the clamping hand 44 will be pulled backward.

[0035] Then, the electric push rod 40 is controlled to operate, driving the telescopic column 47 in the inner cavity of the installation cavity 42 to extend and retract. The extension and retraction of the telescopic column 47 will drive one end of the telescopic column 47 connected to the inner concave block 43 to move forward;

[0036] When the inner concave block 43 moves forward, the roller 51 is driven to contact the front end of the groove 60 provided on the side of the inner concave block 43. The front end of the groove 60 is convex, causing the groove clamp 50 to swing backward. The front ends of the expansion piece 54 connected to one end of the groove clamp 50 are brought closer together, which also brings the clamping hands 44 closer together, achieving a clamping effect, and achieving the purpose of clamping and pulling the bone screw 15.

[0037] When the bone screw 15 is broken, the bone screw in the bone body 13 needs to be extracted again;

[0038] Specifically: the telescopic force of the electric push rod 40 is strengthened. After the inner concave block 43 is subjected to the increased telescopic force, the push plates 58 at the grooves 60 on both sides of the inner concave block 43 will contact the roller 51, and after the roller 51 is blocked and swung to a certain angle, the push plate 58 will be pushed toward the touch switch 56 for displacement. The spring tube 57 and the squeeze rod 52 are arranged between the push plate 58 and the touch switch 56. The spring tube 57 is used for resetting, and the squeeze rod 52 is used for contacting the touch switch 56, and turning on the touch switch 56 controls the battery 49 to input electrical energy into the inner cavity of the cavity column 30. The driving end of the cavity column 30 will be extended and retracted, and drive the top plate 31 to move up and down. A part of the wire is introduced into the electric push rod 27 through the conduit 29, and controls the push shaft 24 connected to the driving end of the electric push rod 27 to drive the mounting plate 25 to move downward.

[0039] After the mounting plate 25 moves downward, the groove block 26 connected to the outer wall of the mounting plate 25 will be squeezed downward, and the hinge seat 33 hinged to the bottom end of the hinge block 23 will drive the slider 22 to move backward and outward on the slide block 32, and expand the arc-shaped push block 21 outward;

[0040] Under the push of the cavity column 30 and the electric push rod 27, the top plate 31 is displaced forward and backward, and the arc-shaped push block 21 provided on its upper surface is expanded outward, and its circular expansion mechanism 59 is inserted into the cavity of the fractured part of the bone screw 15, so that it can contact the fractured cavity of the bone screw 15 and extract the broken bone screw 15 from the bone body 13;

[0041] When the roller 51 is displaced towards the right side of the notch of the strip groove 60, the clamping hand 44 connected to one end thereof expands outwards, and the skin layer part is expanded, which is convenient for extracting the broken bone nail 15 from the bone body 13.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An orthopedic surgery multi-angle automatic nail removal device, comprising a robotic arm assembly (1), characterized in that: The robotic arm assembly (1) includes a mounting base (2). At the top shaft-rotating part of the mounting base (2), a support body (3) is installed. On the upper part of one side of the support body (3), a first rotating shaft assembly (4) is installed. At one end of the first rotating shaft assembly (4), a first robotic arm (5) is installed. At one end of the first robotic arm (5), a second rotating shaft assembly (6) is installed. On one side of the second rotating shaft assembly (6), a connecting seat (8) is installed. At the back of the connecting seat (8), a motor (7) is installed. At the front end of the connecting seat (8), a second robotic arm (9) is installed. At the driving head part of the second robotic arm (9), a top seat (10) is installed. On the front facade of the top seat (10), a support plate is fixedly connected, and a rotating mechanism (11) is arranged on the front facade of the support plate. In front of the rotating mechanism (11), a clamping mechanism (12) is arranged. Below the clamping mechanism (12), a bone rod (14) is arranged; In the middle part of the upper surface of the clamping mechanism (12), an electric telescopic rod (35) is installed. At the pushing end of the electric telescopic rod (35), a chassis (38) is installed. At one end of the chassis (38), a frame (39) is fixedly connected. The frame (39) and the peripheral part of the docking plate (41) are fixedly connected by a connecting rod. At the bottom end of the docking plate (41), an installation cavity tube (42) is installed. At the bottom end of the installation cavity tube (42), a fixed disk (45) is welded; At the central part of the upper surface of the installation cavity tube (42), a first shaft seat (46) is installed. At the central opening part of the first shaft seat (46), a telescopic column (47) is arranged. At the top end of the inner cavity of the installation cavity tube (42), a second shaft seat (48) is installed. One end of the telescopic column (47) is at the central part of the second shaft seat (48); One end of the telescopic column (47) is fixedly connected with an inner concave block (43). At the lower part of the front end of the first shaft seat (46), a welding plate (53) is welded. At the clamping end of the inner concave block (43), a clamping hand (44) is arranged. In the middle part of the inner cavity of the inner concave block (43), a storage battery (49) is installed. At the opening end of the storage battery (49), a touch switch (56) is installed; On the outer walls of the left and right sides of the inner concave block (43), strip grooves (60) are respectively opened. At the groove opening part of the strip groove (60), a push plate (58) is slidably connected. At the central part of the push plate (58), a squeezing rod (52) is welded. At the upper and lower parts of the right arm of the push plate (58) and the right side of the groove opening of the strip groove (60), a spring cylinder (57) is fixedly connected; A cavity column (30) is installed at the top of the storage battery (49). A circular expansion mechanism (59) is arranged in front of the cavity column (30). A top plate (31) is arranged at the telescopic rod part of the cavity column (30). A conduit (29) is installed at the upper part of one side of the cavity column (30). An opening support plate is installed on the upper surface of the conduit (29), and a spring column (28) is installed on the upper surface of the opening support plate. An electric push rod (27) is installed at the top of the spring column (28). A push shaft (24) is installed at the driving end of the electric push rod (27). An installation disc (25) is fixedly connected to the outer wall of the push shaft (24). A groove block (26) is welded to the outer wall of the installation disc (25). A hinge block (23) is hinged at the notch part of the groove block (26). The bottom end of the hinge block (23) is hinged to a hinge seat (33). A slider (22) is welded to the bottom end of the hinge seat (33). The slider (22) is slidably arranged on both sides of a chute block (32). The chute block (32) is welded to the bottom end of the top plate (31). An arc-shaped push block (21) is welded to the front end of the upper surface of the slider (22). Spring rods (20) are fixedly connected to the outer peripheral parts of the two top plates (31).

2. The multi-angle automatic nail extraction device for orthopedic surgery according to claim 1, characterized in that: A bone body (13) is arranged on one side of the bone rod (14). Bone nails (15) are arranged on both sides of the fracture part of the bone body (13). One end of each bone nail (15) penetrates through the outer wall of the bone rod (14) and is fixedly connected to the outer wall of the bone body (13).

3. The multi-angle automatic nail extraction device for orthopedic surgery according to claim 1, wherein: The rotating mechanism (11) includes a tooth shaft box (18) and a telescopic rod (17). Tooth openings are formed on the outer wall of the driving rod of the telescopic rod (17), and the tooth openings are meshed with the internal toothed ring rod of the tooth shaft box (18). A rotating column (16) is rotatably connected to the top of the tooth shaft box (18). A connecting shaft (19) is welded to the front end of the rotating column (16). The front end of the connecting shaft (19) is fixedly connected to the back of the clamping mechanism (12).

4. The multi-angle automatic nail extraction device for orthopedic surgery according to claim 1, characterized in that: The clamping mechanism (12) includes a positioning block (36). A displacement tube (37) is fixedly connected to the front end of the upper surface of the positioning block (36). A docking rod (34) is slidably arranged in the inner cavity of the displacement tube (37). A docking plate (41) is welded to the top of the docking rod (34). An electric push rod (40) is installed at the central part of the upper surface of the docking plate (41).

5. An orthopedic surgery multi-angle automatic nail extraction device according to claim 1, characterized in that: A roller (51) is rollingly connected to the chute part of the strip groove (60). Groove clamping blocks (50) are connected to the upper and lower ends of the roller (51) through shaft columns. An expanding U-shaped part (54) is welded to one end of the groove clamping block (50). A shaft column (55) is installed at the inner shaft part of the expanding U-shaped part (54). A welding plate (53) is arranged below the shaft column (55). The shaft column (55) is rotatably connected to the upper surface of the welding plate (53).

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