External fixing device for orthopedic surgery

Abstract

The external fixing device comprises two movable parts, each movable part comprises a fixed ring, an annular groove is formed in the outer wall of each fixed ring and rotationally connected with a movable ring through a bearing, and a plurality of connecting rods are fixedly connected to the outer walls of the movable rings; the outer walls of the multiple connecting rods are jointly and fixedly connected with a rotating ring, the inner wall of the rotating ring is fixedly connected with multiple triangular blocks, and the fixing ring is slidably connected with multiple abutting rods in a penetrating mode; and the multiple clamping plates are distributed in an annular array mode, and the multiple clamping plates are fixedly connected with the corresponding abutting rods. According to the device, through the arrangement of the two movable parts and the clamping plates, the multiple clamping plates conduct external fixation alternately, the situation that the same position of the skin is squeezed for a long time to cause discomfort is avoided, after each time of injection of an anti-inflammatory needle, the position of the through hole can be automatically replaced, repeated injection at the same position within a short time is avoided, and after each time of injection, the operation is convenient. And the needle hole position can be automatically pressed by using aseptic cotton.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an external fixation device for orthopedic surgery. Background Art

[0002] During orthopedic surgical treatment, external fixation devices are key equipment to ensure stable healing of fracture sites.

[0003] Traditional external fixation devices used in orthopedic surgeries mostly employ static fixation, using splints, brackets, and other components to secure the fracture site for extended periods. However, this fixation method has significant drawbacks. Prolonged compression of the same skin location can lead to poor local blood circulation, causing complications such as redness, swelling, and ulcers. This not only increases patient pain but can also impede fracture healing.

[0004] Furthermore, during the recovery phase of orthopedic surgery, patients require frequent anti-inflammatory injections. Due to the small size of the needle holes, medical staff must locate the last injection location before each injection, significantly increasing the workload for nurses and reducing the effectiveness of anti-inflammatory injections.

[0005] At the same time, after the injection, pressure is required to stop bleeding and disinfection is required. Existing nursing work mostly relies on manual operation by medical staff, which not only consumes manpower, but may also cause wound bleeding, infection and other problems due to untimely operation.

[0006] Therefore, it is necessary to design an external fixation device for orthopedic surgery to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an orthopedic surgical external fixation device. The device, through the arrangement of two movable parts and splints, allows multiple splints to be alternately externally fixed, thereby avoiding the discomfort caused by squeezing the same position of the skin for a long time. After each anti-inflammatory injection, the position of the through hole can be automatically changed to avoid repeated acupuncture in the same position in a short period of time. After each injection, the needle hole position can be automatically pressed with sterilized cotton.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] The cam is fixedly mounted on a gear train with two guide wheels, the guide wheels being fixedly mounted on the gear train and the gear train being coupled to the gear train.

[0010] Preferably, two handles are installed on the right side of the fixing ring located on the right side, and the adjacent sides of the two fixing rings are fixedly connected with circular rings. Guide rods are slidably connected through the two circular rings, and each guide rod is fixedly connected to the corresponding splint, and the support rods on the two fixing rings are staggered.

[0011] Preferably, a rectangular cavity is provided in each of the fixing rings, each of the push rods passes through the corresponding rectangular cavity, and the part of each of the push rods located in the rectangular cavity is fixedly connected to a rectangular plate. Each of the rectangular plates is elastically connected to the inner wall of the corresponding rectangular cavity through a second spring. The space on one side of each rectangular cavity away from the splint is connected to the external unit through an exhaust pipe, and an electromagnetic valve is provided on the exhaust pipe. Each of the rectangular cavity is connected to the outside world through an intake pipe, and a one-way valve is provided on the intake pipe.

[0012] Preferably, a controller is provided in the fixing ring, and the controller is electrically connected to multiple solenoid valves through wires. The controller is provided with a delay relay and a timer. The timer is used to control the operation of the micro motor at a fixed time, and the rotation direction of the output shaft of the micro motor is opposite to the previous time each time. The delay relay is used to control the solenoid valve corresponding to the previous working splint to be energized after the micro motor has run for a period of time, so that multiple splints are reset and alternately fixed externally.

[0013] Preferably, a strip groove is provided on the front side of one of the splints, a strip opening is provided on the inner bottom of the strip groove, a movable plate is slidably connected in the strip groove, a through hole is provided on the movable plate, an induction sensor is provided on the inner wall of the through hole, a first electromagnet is installed on the left inner wall of the strip groove, the first electromagnet is elastically connected to the movable plate through a compression spring, the induction sensor is electrically connected to the controller through a wire, the controller is electrically connected to the first electromagnet through a wire, a counting sensor is provided on the controller, and the counting sensor is used to control the current passing through the first electromagnet according to the number of times the induction sensor is triggered.

[0014] Preferably, it also includes a pressing component, which includes a vertical plate fixedly connected to the front side of the movable plate, a second electromagnet fixedly connected to the right side of the vertical plate, two telescopic rods fixedly connected to the lower end of the second electromagnet, and a magnetic plate fixedly connected to the lower ends of the two telescopic rods. The magnetic plate and the adjacent side of the second electromagnet are elastically connected by a first spring, and an adhesive layer is provided at the lower end of the magnetic plate.

[0015] Preferably, the front side of the movable plate is fixedly connected to a pressure plate, a pressure sensor is provided on the left side of the pressure plate, a telescopic sleeve is fixedly connected to the left side of the pressure plate, the front side of the splint is fixedly connected to a fixed block, and the left side of the telescopic sleeve is fixedly connected to the fixed block.

[0016] Preferably, the telescopic sleeve includes multiple rod bodies, all of which are hollow structures. The outer diameters of the rod bodies decrease from right to left. Among two adjacent rod bodies, the rod body with a smaller outer diameter can be movably inserted into the hollow interior of the rod body with a larger outer diameter to achieve relative telescopic movement.

[0017] The present invention has the following beneficial effects:

[0018] 1. Compared with the existing technology, the present invention realizes the alternating external fixation of multiple splints through the unique design of two movable parts and multiple splints. It avoids the problems of poor blood circulation, skin redness, swelling and ulcers caused by long-term compression of the same part of the skin in the traditional static fixation mode, effectively improves the patient's comfort during fixation, reduces the risk of complications, and creates good conditions for fracture healing;

[0019] 2. Compared with the existing technology, the present invention is equipped with a movable plate structure with an induction sensor and a counting sensor. After each anti-inflammatory injection, the first electromagnet can be automatically controlled to adjust the position of the movable plate according to the number of triggering times of the induction sensor, thereby realizing automatic replacement of the through-hole position. This greatly reduces the situation of repeated acupuncture in the same position in a short period of time, alleviates the pain of patients, reduces the risk of infection, and also greatly improves the efficiency of nurses in giving injections.

[0020] 3. Compared with the existing technology, the pressing assembly of the present invention can play a role after the injection is completed. The second electromagnet, telescopic rod, magnetic plate and adhesive layer and other components cooperate with each other to automatically press the needle hole position with sterilized cotton, realizing automatic postoperative care without relying on manual operation of medical staff. It not only saves manpower, but also can timely treat the needle hole, effectively avoiding problems such as wound bleeding and infection.

[0021] 4. Compared with the existing technology, the present invention integrates intelligent control elements such as controllers, delay relays and timers, realizes the automated alternating fixation and nursing process, improves the intelligence level of the external fixation device, and meets the higher requirements of modern medicine for the comfort, safety and intelligence of orthopedic surgery external fixation devices.

[0022] In summary, through a series of innovative designs and intelligent control methods, the present invention has significant advantages in improving patient treatment experience, reducing the risk of complications, and improving nursing efficiency, providing a more advanced and practical solution for the field of external fixation in orthopedic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of an external fixation device for orthopedic surgery proposed by the present invention;

[0024] Figure 2 This is a schematic structural diagram of an external fixation device for orthopedic surgery proposed by the present invention from another perspective;

[0025] Figure 3 This is a schematic diagram of the structure of an external fixation device for orthopedic surgery after fixation proposed by the present invention;

[0026] Figure 4 It is a structural diagram of the left movable part;

[0027] Figure 5 for Figure 4 Half-section view;

[0028] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 7 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0030] In the figure: 1 fixed ring, 2 handle, 3 movable ring, 4 connecting rod, 5 rotating ring, 6 triangular block, 7 splint, 8 support rod, 9 guide rod, 10 micro motor, 11 walking gear, 12 rotating rod, 13 circular ring, 14 strip groove, 15 fixed block, 16 compression spring, 17 movable plate, 18 telescopic sleeve, 19 pressure plate, 20 through hole, 21 inductive sensor, 22 tooth edge, 23 vertical plate, 24 second electromagnet, 25 telescopic rod, 26 first spring, 27 adhesive layer, 28 rectangular cavity, 29 rectangular plate, 30 second spring, 31 exhaust pipe, 32 first electromagnet, 33 magnetic plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] Reference Figure 1-Figure 7 The outer wall of the movable ring 3 is fixedly connected to a plurality of connecting rods 4, and the outer walls of the plurality of connecting rods 4 are fixedly connected to a rotating ring 5. The inner wall of the rotating ring 5 is fixedly connected to a plurality of triangular blocks 6. A plurality of push rods 8 are slidably connected to the fixed ring 1. The fixed ring 1 serves as the basic supporting structure of the device. The cooperation of the annular groove and the bearing provides a flexible rotation space for the movable ring 3; the movable ring 3, the connecting rod 4 and the rotating ring 5 constitute a transmission structure, which transmits the rotational motion of the rotating ring 5 to the push rod 8; the inclined surface design of the triangular block 6 can push the push rod 8 to slide in the fixed ring 1 when the rotating ring 5 rotates, thereby driving the splint 7; a plurality of splints 7 are distributed in an annular array. The splints 7 distributed in a row can stably fix the fracture site from multiple directions. The fixed connection between the push rod 8 and the splint 7 enables the movement of the push rod 8 to directly drive the splint 7 to clamp or release the limb. Multiple splints 7 are fixedly connected to the corresponding push rod 8; the adjacent sides of the two rotating rings 5 are commonly connected to the rotating rod 12 for rotation, and two traveling gears 11 are fixedly connected to the rotating rod 12. A micro motor 10 is installed on the rotating ring 5 on the left, and the output shaft end of the micro motor 10 is fixedly connected to the rotating rod 12. The outer walls of the two fixed rings 1 are fixedly connected with multiple tooth ridges 22 that mesh with the traveling gear 11. The micro motor 10 serves as a power source and drives the traveling gear 11 to rotate through the rotating rod 12; the traveling gear 11 meshes with the tooth ridges 22 to convert the rotational motion of the micro motor 10 into the circular motion of the rotating ring 5, thereby realizing the synchronous rotation of the two rotating rings 5.

[0033] Among them, two handles 2 are installed on the right side of the fixing ring 1 on the right side, and the adjacent sides of the two fixing rings 1 are fixedly connected with circular rings 13, and the two circular rings 13 are slidably connected with guide rods 9, and each guide rod 9 is fixedly connected to the corresponding splint 7. The push rods 8 on the two fixing rings 1 are staggered, which is convenient for alternating fixation of the two groups of splints, and the handles 2 are convenient for medical staff to hold and operate when installing and disassembling the device; the cooperation between the circular rings 13 and the guide rods 9 provides guidance for the movement of the splint 7, ensuring that the splint 7 remains stable during the movement and avoids displacement; the number of splints 7 on each group of fixed plates is six, and each group of push rods 8 is staggered, so that the two groups of fixed plates can be fixed alternately.

[0034] Among them, a rectangular cavity 28 is provided in each fixing ring 1, and each push rod 8 passes through the corresponding rectangular cavity 28. The part of each push rod 8 located in the rectangular cavity 28 is fixedly connected to a rectangular plate 29. Each rectangular plate 29 is elastically connected to the inner wall of the corresponding rectangular cavity 28 by a second spring 30. The space on one side of each rectangular cavity 28 away from the splint 7 is connected to the external unit through an exhaust pipe 31. The exhaust pipe 31 is provided with an electromagnetic valve. Each rectangular cavity 28 is connected to the outside world through an intake pipe. A one-way valve is provided on the intake pipe. The rectangular cavity 28 provides space for the movement of the push rod 8. The rectangular plate 29 and the second spring 30 constitute an elastic buffer structure, which can play a buffering role when the splint 7 is fixed, and provide elastic force when resetting; the exhaust pipe 31 cooperates with the electromagnetic valve to assist the push rod 8 in resetting by controlling the gas discharge; the setting of the intake pipe and the one-way valve ensures that the gas can only enter the rectangular cavity 28 in one direction, maintaining the air pressure in the cavity stable.

[0035] Among them, a controller is provided in the fixing ring 1, and the controller is electrically connected to multiple solenoid valves through wires. The controller is provided with a delay relay and a timer. The timer is used to control the operation of the micro motor 10 at a fixed time, and the rotation direction of the output shaft of the micro motor 10 is opposite to the previous time each time. The delay relay is used to control the solenoid valve of the previously working splint 7 to energize after the micro motor 10 has run for a period of time, so that multiple splints 7 are reset and alternately fixed externally. The controller serves as the control core of the device and coordinates the work of various components; the timer accurately controls the running time and rotation direction of the micro motor 10 to achieve alternate fixation of the splint 7; the delay relay ensures that after the splint 7 is fixed for a period of time, it can promptly control the solenoid valve to open and achieve reset, thereby avoiding long-term squeezing of the same part of the limb.

[0036] Among them, one of the splints 7 is provided with a strip groove 14 on the front side, and the inner bottom of the strip groove 14 is provided with a strip opening, and a movable plate 17 is slidably connected in the strip groove 14, and a through hole 20 is provided on the movable plate 17, and an inductive sensor 21 is provided on the inner wall of the through hole 20. A first electromagnet 32 is installed on the left inner wall of the strip groove 14, and the first electromagnet 32 is elastically connected to the movable plate 17 through a compression spring 16, and the inductive sensor 21 is electrically connected to the controller through a wire, and the controller is electrically connected to the first electromagnet 32 through a wire. A counting sensor is provided on the controller, and the counting sensor is used to control the current passing through the first electromagnet 32 according to the number of triggering of the inductive sensor 21, and the strip groove 14 provides a sliding track for the movable plate 17; the through hole 20 is used to determine the needle insertion position, and the inductive sensor 21 can detect the insertion of the needle; the first electromagnet 32 cooperates with the compression spring 16 to change the magnetic force by controlling the current size to achieve position adjustment of the movable plate 17; the counting sensor accurately controls the moving distance of the movable plate 17 according to the number of triggering of the inductive sensor 21, thereby realizing automatic change of the needle insertion position.

[0037] Among them, it also includes a pressing component, which includes a vertical plate 23 fixedly connected to the front side of the movable plate 17, a second electromagnet 24 fixedly connected to the right side of the vertical plate 23, and two telescopic rods 25 fixedly connected to the lower end of the second electromagnet 24. The lower ends of the two telescopic rods 25 are commonly fixedly connected to a magnetic plate 33, and the adjacent sides of the magnetic plate 33 and the second electromagnet 24 are elastically connected by a first spring 26. The lower end of the magnetic plate 33 is provided with an adhesive layer 27, and the front side of the movable plate 17 is fixedly connected to a pressure plate 19, and a pressure sensor is provided on the left side of the pressure plate 19. The left side of the pressure plate 19 is fixedly connected to a telescopic sleeve 18, and the front side of the splint 7 is fixedly connected to the fixed block 15. The left side of the telescopic sleeve 18 is fixedly connected to the fixed block 15. The telescopic sleeve 18 includes a plurality of rod bodies, and the plurality of rod bodies are all hollow structures, and the outer diameter of the rod body decreases from right to left. , of the two adjacent rod bodies, the rod body with a smaller outer diameter can be movably inserted into the hollow interior of the rod body with a larger outer diameter to achieve relative telescopic movement. The pressing assembly is used for wound pressing care after injection. The vertical plate 23 serves as a supporting structure, and the second electromagnet 24 attracts or releases the magnetic plate 33 by magnetic force; the telescopic rod 25 ensures the vertical movement of the magnetic plate 33, the first spring 26 provides reset elasticity, and the adhesive layer 27 is used to adhere the disinfection cotton; the pressure plate 19, the pressure sensor and the telescopic sleeve 18 constitute a trigger structure. When the moving plate 17 moves, the telescopic sleeve 18 contracts and squeezes the pressure sensor, triggering the second electromagnet 24 to work, thereby realizing the function of automatically pressing the wound. The telescopic sleeve 18 is similar to the extension of a fishing rod, so that every time the moving plate 17 moves, the penultimate rod body of the telescopic sleeve 18 located on the outside will be contracted to the hollow interior to squeeze the pressure sensor.

[0038] The present invention can illustrate its functional principle through the following operation mode: when using the orthopedic surgical external fixation device, in the first fixation stage, the medical staff inserts the device from the patient's foot or hand until the multiple splints 7 are located on the outside of the position that needs to be fixed. Then, the medical staff holds the two handles 2 and controls the micro motor 10 to rotate clockwise first. The output shaft of the micro motor 10 drives the rotating rod 12 to rotate, and the running gear 11 on the rotating rod 12 engages with the tooth edge 22 on the outer wall of the fixed ring 1, driving the rotating ring 5 to rotate. At this time, the multiple triangular blocks 6 on the left side approach the corresponding push rods 8, and the multiple triangular blocks 6 on the right side move away from the corresponding push rods 8. Under the action of the triangular blocks 6, the multiple push rods 8 on the left side drive the splints 7 to move, thereby fixing the patient's legs or hands.

[0039] When the set time is reached, the timer in the controller starts to work, controlling the output shaft of the micro motor 10 to rotate clockwise, causing the two rotating rings 5 to rotate in the opposite direction, thereby squeezing the push rod 8 on the right side, and the corresponding multiple splints 7 on the right side are clamped on the patient's hand or leg. After a period of time, the delay relay is triggered, so that the solenoid valve on the exhaust pipe 31 corresponding to the previously clamped splint 7 is energized for a period of time. In the rectangular cavity 28 in the fixing ring 1, the rectangular plate 29 cooperates with the second spring 30. When the solenoid valve is ventilated, the air pressure change assists the push rod 8 to reset, and the rectangular plate 29 drives the push rod 8 and the splint 7 to reset, pressing the gas in the rectangular cavity 28 out to the outside, completing the alternating external fixation of the splint 7.

[0040] After a period of time, the micro motor 10 will run in the reverse direction again, so that multiple splints 7 are alternately fixed externally. Through the above cycle, the skin is prevented from being compressed at the same position for a long time, thereby improving the patient's comfort and reducing the risk of complications.

[0041] During the injection of the anti-inflammatory needle, when the needle passes through the through hole 20 on the movable plate 17, the inductive sensor 21 is triggered to generate an electrical signal and transmit the signal to the controller. After receiving the signal, the controller controls the first electromagnet 32 to be energized. At the same time, the counting sensor counts the number of times the inductive sensor 21 is triggered. Each time it is triggered, the counting sensor counts once, and the controller increases the current passing through the first electromagnet 32. Since the first electromagnet 32 is elastically connected to the movable plate 17 through the compression spring 16, the increase in current changes the magnetic force of the electromagnet, thereby causing the movable plate 17 to produce a corresponding displacement in the strip groove 14. By accurately setting the corresponding relationship between the current change and the displacement, after each acupuncture, the movable plate 17 will drive the through hole 20 to move to a new position, realizing the automatic change of the acupuncture position, and effectively avoiding repeated acupuncture at the same position.

[0042] After each movement of the movable plate 17, the pressure plate 19 installed on the front side of the movable plate 17 moves accordingly, causing the telescopic sleeve 18 to shrink a section and squeeze the pressure sensor. The pressure sensor transmits the pressure change signal to the controller, and the controller controls the second electromagnet 24 to be energized for a period of time according to a preset program. Before each acupuncture, the nursing staff must first adhere the disinfectant cotton to the adhesive layer 27 at the lower end of the magnetic plate 33. When the second electromagnet 24 is energized to generate magnetism, it attracts the magnetic plate 33 to move downward, and the telescopic rod 25 extends, driving the disinfectant cotton to squeeze the wound. After the set pressing time, the electromagnet is de-energized, and the magnetic plate 33 is reset under the action of the first spring 26. The medical staff can remove and discard the used disinfectant cotton. It is easy to operate and can effectively avoid cross infection.

[0043] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An external fixation device for orthopedic surgery, characterized in that: include: Two movable parts, the movable parts include a fixed ring (1), an annular groove is provided on the outer wall of the fixed ring (1), the annular groove is rotatably connected to a movable ring (3) through a bearing, the outer wall of the movable ring (3) is fixedly connected to a plurality of connecting rods (4), the outer walls of the plurality of connecting rods (4) are commonly fixedly connected to a rotating ring (5), the inner wall of the rotating ring (5) is fixedly connected to a plurality of triangular blocks (6), and a plurality of push rods (8) are slidably connected to the fixed ring (1); A plurality of splints (7), wherein the plurality of splints (7) are distributed in a ring array, and the plurality of splints (7) are fixedly connected to corresponding support rods (8); Adjacent sides of the two rotating rings (5) are connected to a rotating rod (12) for common rotation, and two traveling gears (11) are fixedly connected to the rotating rod (12). A micro motor (10) is installed on the rotating ring (5) on the left side, and the output shaft end of the micro motor (10) is fixedly connected to the rotating rod (12). The outer walls of the two fixed rings (1) are fixedly connected to a plurality of tooth edges (22) that mesh with the traveling gears (11).

2. The orthopedic surgery external fixation device according to claim 1, characterized in that: Two handles (2) are installed on the right side of the fixing ring (1) located on the right side. The adjacent sides of the two fixing rings (1) are fixedly connected with circular rings (13). The two circular rings (13) are both slidably connected with guide rods (9). Each guide rod (9) is fixedly connected to the corresponding clamping plate (7). The supporting rods (8) on the two fixing rings (1) are staggered.

3. The orthopedic surgery external fixation device according to claim 2, characterized in that: Each of the fixing rings (1) is provided with a rectangular cavity (28), each of the push rods (8) passes through the corresponding rectangular cavity (28), and the portion of each of the push rods (8) located in the rectangular cavity (28) is fixedly connected to a rectangular plate (29), and each of the rectangular plates (29) is elastically connected to the inner wall of the corresponding rectangular cavity (28) via a second spring (30). The space on one side of each of the rectangular cavities (28) away from the splint (7) is connected to the external unit via an exhaust pipe (31), and a solenoid valve is provided on the exhaust pipe (31). Each of the rectangular cavities (28) is connected to the outside world via an intake pipe, and a one-way valve is provided on the intake pipe.

4. The orthopedic surgery external fixation device according to claim 3, characterized in that: A controller is provided in the fixing ring (1), and the controller is electrically connected to a plurality of electromagnetic valves via a wire. A time delay relay and a timer are provided on the controller, and the timer is used to control the operation of the micro motor (10) at a fixed time, and the rotation direction of the output shaft of the micro motor (10) is opposite to the previous time each time. The time delay relay is used to control the electromagnetic valve corresponding to the previous working clamp (7) to be energized after the micro motor (10) has run for a period of time, so that the plurality of clamps (7) are reset and alternate external fixation is performed.

5. The orthopedic surgery external fixation device according to claim 1, characterized in that: A strip groove (14) is provided on the front side of one of the clamping plates (7), and a strip opening is provided on the inner bottom of the strip groove (14). A movable plate (17) is slidably connected in the strip groove (14), and a through hole (20) is provided on the movable plate (17). An inductive sensor (21) is provided on the inner wall of the through hole (20). A first electromagnet (32) is installed on the left inner wall of the strip groove (14), and the first electromagnet (32) is elastically connected to the movable plate (17) through a compression spring (16). The inductive sensor (21) is electrically connected to the controller through a wire, and the controller is electrically connected to the first electromagnet (32) through a wire. A counting sensor is provided on the controller, and the counting sensor is used to control the current passing through the first electromagnet (32) according to the number of times the inductive sensor (21) is triggered.

6. The orthopedic surgery external fixation device according to claim 5, characterized in that: The invention also includes a pressing assembly, wherein the pressing assembly includes a vertical plate (23) fixedly connected to the front side of the movable plate (17), the right side of the vertical plate (23) is fixedly connected to a second electromagnet (24), the lower end of the second electromagnet (24) is fixedly connected to two telescopic rods (25), the lower ends of the two telescopic rods (25) are commonly fixedly connected to a magnetic plate (33), the magnetic plate (33) is elastically connected to the adjacent side of the second electromagnet (24) through a first spring (26), and the lower end of the magnetic plate (33) is provided with an adhesive layer (27).

7. The orthopedic surgery external fixation device according to claim 5, characterized in that: The front side of the movable plate (17) is fixedly connected to a pressure plate (19), a pressure sensor is provided on the left side of the pressure plate (19), a telescopic sleeve (18) is fixedly connected to the left side of the pressure plate (19), the front side of the clamping plate (7) is fixedly connected to a fixed block (15), and the left side of the telescopic sleeve (18) is fixedly connected to the fixed block (15).

8. The orthopedic surgery external fixation device according to claim 7, characterized in that: The telescopic sleeve (18) comprises a plurality of rod bodies, all of which are hollow structures. The outer diameters of the rod bodies decrease from right to left. Of the two adjacent rod bodies, the rod body with the smaller outer diameter can be movably inserted into the hollow interior of the rod body with the larger outer diameter to achieve relative telescopic movement.

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