Magnetic laparoscopic surgical instrument fixing device and adjustable clamping arm

Abstract

This invention relates to the field of surgical instrument auxiliary devices, and discloses a magnetic suction laparoscopic surgical instrument fixing device and an adjustable clamping arm. The device includes a base, a guide rail fixedly mounted on the top of the base, and sliding grooves on both sides of the guide rail. A movable block is slidably connected between the two sliding grooves. A type II angle limiting block is fixedly mounted on the top of the movable block, and a support rod is movably connected to the top of the movable block. The support rod and the type II angle limiting block are slidably connected. A support frame is fixedly connected to the top of the movable block, and a second spring is suspended at the bottom of the support frame. A type I angle limiting block is fixedly connected to the bottom of the support rod, and the type I and type II angle limiting blocks abut against each other. This magnetic suction laparoscopic surgical instrument fixing device and adjustable clamping arm allows the surgeon to reactivate the locking state of the support rod, freeing up both hands for surgical incisions and other operations, effectively reducing the workload during surgery and improving surgical efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument auxiliary devices, specifically a magnetic suction laparoscopic surgical instrument fixation device and an adjustable clamping arm. Background Technology

[0002] In current medical practice, laparoscopic surgery typically relies on a traditional instrument tray containing various essential surgical tools, such as scalpels, forceps, and laparoscopes. The procedure often requires the coordinated efforts of multiple medical personnel. First, a puncture needle is inserted into the skin, then the laparoscope is inserted through the needle to meticulously examine and manipulate the affected area. The surgeon usually needs to hold the laparoscope stably with one hand to obtain a clear internal view, while the other hand performs precise cutting or suturing. This prolonged operation keeps the surgeon's hands under constant tension, preventing effective rest, especially for the arm holding the laparoscope, which is prone to fatigue. Once the surgeon becomes fatigued, the laparoscope may shift position, and even slight movement can lead to a loss of the surgical field, requiring readjustment and repositioning of the surgical area. This not only increases surgical time but also raises the uncertainty and risks involved. Furthermore, some operating rooms, in an effort to address this issue, assign an additional surgeon to handle the laparoscope while another surgeon leads the operation. However, this approach significantly increases the demand for human resources, raising labor costs and exacerbating the consumption of medical resources. To address these problems, we have innovatively proposed a magnetic suction laparoscopic surgical instrument fixation device and an adjustable clamping arm. This design effectively stabilizes the instruments, reduces the surgeon's workload, optimizes the surgical procedure, and conserves medical resources. Summary of the Invention

[0003] The purpose of this invention is to provide a magnetic suction laparoscopic surgical instrument fixation device and an adjustable clamping arm to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an adjustable clamping arm for a magnetic laparoscopic surgical instrument, comprising a base, a guide rail fixedly mounted on the top of the base, sliding grooves provided on both sides of the guide rail, a movable block slidably connected between the two sliding grooves, a type II angle limiting block fixedly mounted on the top of the movable block, a support rod movably connected to the top of the movable block, the support rod and the type II angle limiting block slidably connected, a support frame fixedly connected to the top of the movable block, a second spring suspended at the bottom of the support frame, a type I angle limiting block fixedly connected to the bottom of the support rod, the type I angle limiting block and the type II angle limiting block abutting against each other, a fixed ball fixedly mounted on the top of the support rod, a rotating cover rotatably connected to the fixed ball, clamping blocks slidably connected on both sides of the rotating cover, and a laparoscopic body detachably connected between the two clamping blocks.

[0005] Preferably, the support rod has a rotating handle fixedly connected near the top of the support frame, a cover fixedly connected to the top of the rotating handle, a first movable rod rotatably connected to the cover, a second movable rod rotatably connected to one end of the first movable rod, a third movable rod rotatably connected to one end of the second movable rod, a rotating rod rotatably mounted to one end of the third movable rod, and the rotating rod and the rotating cover are fixedly connected together.

[0006] Preferably, a locking block is rotatably connected to one end of the second movable rod, and the shaft end between the second and third movable rods is threaded, with the locking block threadedly connected to the shaft end between the second and third movable rods.

[0007] Preferably, a limiting rod is slidably connected to the third movable rod, and a driving rod is fixedly connected to both ends of the limiting rod. A threaded rod is rotatably connected to the bottom of each clamping block. The driving rod and the threaded rod are fixed together, and one end of the threaded rod is rotatably connected to the rotating cover.

[0008] Preferably, an electromagnet is fixedly installed on one side of each clamping block, a conductive rod is fixedly connected to the bottom of one side of the clamping block, and sliding rheostats are fixedly installed on both sides of the top of the rotating cover. The conductive rod and the sliding rheostat are slidably connected, and the sliding rheostat is electrically connected to the electromagnet through the conductive rod.

[0009] Preferably, the support rod has a threaded section in the middle, a rotating cylinder is threadedly connected to the threaded section of the support rod, a bearing is fixedly connected to the top of the rotating cylinder, a movable cylinder is fixedly connected to the outer ring of the bearing, a slide rail is provided on the second movable rod, and the laparoscope body and the slide rail are slidably connected together.

[0010] Preferably, a sealing cylinder is fixedly installed at the bottom of the support frame, and the bottom of the sealing cylinder abuts against the top of the movable block.

[0011] Preferably, a magnetic suction laparoscopic surgical instrument fixation device includes at least two strong magnets on both sides of the base, and a fixing component for locking the moving block and the sliding groove is fixedly installed on the moving block.

[0012] Preferably, the fixing component includes a plurality of positioning holes equidistantly opened on each of the slide grooves, a pair of hinge supports are fixedly installed on both sides of the movable block, a pressure plate is rotatably connected to each of the hinge supports, a first spring is fixedly connected between one end of the pressure plate and the movable block, and a locking ball is fixedly installed on the other end of the pressure plate. The size of the locking ball matches the positioning hole, and the inner side of the movable block extends inward so that it has a limiting mound that matches the slide groove.

[0013] Preferably, the positioning hole is semi-circular in shape, and the hinge support is made of metal.

[0014] Compared with the prior art, the beneficial effects of the present invention are: After the puncture needle completes the skin puncture, it forms a lever effect with the skin. One end is located inside the abdominal cavity, and the other end is connected to the laparoscope body. When the rotating cover is raised or lowered, it drives the laparoscope body to rise or fall accordingly, thereby pulling the puncture needle in the opposite direction to produce fine-tuning movement on the skin. During this process, the movement of the puncture needle allows the laparoscope body to swing on the skin surface, facilitating the physician to more flexibly explore and locate the patient's location. Furthermore, when the rotation of the support rod stops, the relative posture of the Type I and Type II angle limiting blocks is locked, allowing the laparoscope body to be adjusted at multiple angles, significantly expanding its exploration range. After locking, the physician can reactivate the locked state of the support rod to free up both hands for surgical operations such as incisions, effectively reducing the workload during surgery and improving surgical efficiency and accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the fixing device structure of the present invention; Figure 4 This is a schematic diagram of the structure of the Type I and Type II corner limiting blocks of the present invention; Figure 5 This is a schematic diagram of the drive rod and rotating cover structure of the present invention; Figure 6 This is a schematic diagram of the rotating cylinder and support rod structure of the present invention; Figure 7 This is a schematic diagram of the second and third movable rods of the present invention; Figure 8For the present invention Figure 2 Enlarged structural diagram at point A; Figure 9 This is a schematic diagram showing the distance between the laparoscopic body and the object of observation after multiple angle changes in this invention. Figure 10 This is a schematic diagram of the clamping block structure of the present invention.

[0016] In the diagram: 1-Base; 2-Slide groove; 3-Guide rail; 4-Positioning hole; 5-Moving block; 6-Support frame; 7-Sealing cylinder; 8-Rotating handle; 9-Sealing cover; 10-First movable rod; 11-Second movable rod; 12-Support rod; 13-Rotating cylinder; 14-Third movable rod; 15-Rotating rod; 16-Drive rod; 17-Locking block; 18-Laparoscope body; 19-Pressure plate; 20-Limiting mound; 21-First spring; 22-Hinge support; 23-Positioning ball; 24-Second spring; 25-Type I angle limiting block; 26-Type II angle limiting block; 27-Bearing; 28-Motating cylinder; 29-Fixed ball; 30-Rotating cover; 31-Threaded rod; 32-Limiting rod; 33-Slide rail; 34-Clamping block; 35-Electromagnet; 36-Conductive rod; 37-Sliding rheostat. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-10 This invention provides an innovative technical solution: an adjustable clamping arm for a magnetic laparoscopic surgical instrument. The device mainly comprises a base 1, with a guide rail 3 fixedly mounted on the top of the base 1. Slide grooves 2 are respectively provided on both sides of the guide rail 3, and a movable block 5 is slidably connected between the two slide grooves 2. A type II angle limiting block 26 is fixedly mounted on the top of the movable block 5, and a support rod 12 is movably connected to the top of the movable block 5. The support rod 12 passes through the type II angle limiting block 26, forming a sliding connection structure between the support rod 12 and the type II angle limiting block 26. A support frame 6 is also fixedly connected to the top of the movable block 5. A second spring 24 is suspended from the bottom of the support frame 6. A type I angle limiting block 25 is connected to the bottom of the support rod 12 via a fixing key, and the type I angle limiting block 25 and the type II angle limiting block 26 abut against each other. A fixed ball 29 is fixedly installed on the top of the support rod 12. A rotating cover 30 is rotatably connected to the fixed ball 29. Clamping blocks 34 are slidably connected to both sides of the rotating cover 30. The two clamping blocks 34 can be detachably connected to the laparoscope body 18. In addition, at least two strong magnets are provided on both sides of the base 1.

[0019] The specific operation process is as follows: First, the base 1 is firmly fixed to the operating table by the magnetic attraction effect generated by its built-in strong magnet. Then, the medical staff manually controls the moving block 5. Next, the medical staff uses a puncture needle to perform a puncture operation on the patient's skin. Then, the laparoscope body 18 is clamped and fixed between two clamping blocks 34. The clamping blocks 34 can be manually tightened beforehand to ensure stable clamping, driving the laparoscope body 18 to move precisely to the surgical target site. During this process, by manually rotating the support rod 12, the type I angle limiting block 25 rotates on top of the type II angle limiting block 26. At this time, the second spring 24 is compressed, and the type I angle limiting block 25 can be displaced on top of the type II angle limiting block 26, thereby driving the support rod 12 to move telescopically on the support frame 6. The support rod 12 and the support frame 6 are slidably connected. The movement of the support rod 12 is further transmitted to the fixed ball 29. The fixed ball 29 is connected to the rotating cover 30 through an interference fit structure, so that the rotating cover 30 can achieve lifting and lowering movement.

[0020] After the puncture needle completes the skin puncture, it forms a lever effect with the skin, with one end inside the abdominal cavity and the other end connected to the laparoscope body 18. When the rotating cover 30 is raised or lowered, it can drive the laparoscope body 18 to rise or fall accordingly, thereby pulling the puncture needle in the opposite direction to produce fine-tuning movement on the skin. The puncture needle mainly rotates on the skin. During this process, the movement of the puncture needle allows the laparoscope body 18 to swing on the skin surface, making it easier for the physician to explore and locate the patient's site more flexibly. In addition, when the rotation of the support rod 12 stops, the relative posture of the type I angle limiting block 25 and the type II angle limiting block 26 will be locked, thereby enabling the laparoscope body 18 to achieve multi-angle adjustment and significantly expand its exploration range. After locking, the physician can reactivate the locked state of the support rod 12 to free up both hands for surgical incisions and other operations, effectively reducing the operational burden during the operation and improving surgical efficiency and accuracy. A more detailed implementation method will be further described below.

[0021] Furthermore, a handle 8 is fixedly connected to the side of the support rod 12 near the top of the support frame 6. A cover 9 is fixedly installed on the top of the handle 8. A first movable rod 10 is rotatably connected above the cover 9. One end of the first movable rod 10 is connected to a second movable rod 11 via a shaft. The other end of the second movable rod 11 is rotatably connected to a third movable rod 14 via a connecting shaft. A rotating rod 15 is rotatably installed at the end of the third movable rod 14. The rotating rod 15 is fixedly connected to the rotating cover 30. In actual operation, when it is necessary to adjust the angle of the support rod 12, it can be done by manually rotating the handle 8 or by applying rotational force by holding the first movable rod 10. The rotation of the first movable rod 10 will synchronously drive the second movable rod 11 to move accordingly. The movement of the second movable rod 11 is further transmitted to the third movable rod 14, causing it to rotate. The rotation of the third movable rod 14 ultimately drives the rotating rod 15 to perform a rotational action, thereby enabling the rotating cover 30 to rotate around the fixed ball 29. This linkage mechanism significantly expands the adjustable range of the laparoscopic body 18, enabling it to more flexibly adapt to various operating perspectives and clinical needs.

[0022] Furthermore, a locking block 17 is rotatably connected to one end of the second movable rod 11, located at the end of the connecting shaft between the second movable rod 11 and the third movable rod 14. Specifically, the shaft end between the second movable rod 11 and the third movable rod 14 is designed with an external thread, while the locking block 17 has a matching internal thread, thus enabling a reliable threaded connection between the locking block 17 and the shaft end. In actual operation, when it is necessary to adjust the angle between the second movable rod 11 and the third movable rod 14, the operator can manually rotate the locking block 17 to gradually release the pre-tightening pressure exerted by the second movable rod 11 on the end of the third movable rod 14. After the angle is adjusted to the desired position, the locking block 17 is rotated in the opposite direction to re-lock the connection. This structural design allows the operator to flexibly and precisely control the lever arm length formed between the third movable rod 14 and the second movable rod 11. This further affects the actual rotatable range of the rotating cover 30 around the fixed ball 29, ultimately limiting the angle of the laparoscopic body 18 during its upward and downward movements on the rotating cover 30. This adjustment mechanism not only enhances the structural controllability of the equipment but also significantly improves the operational accuracy and stability of the laparoscopic body 18 during angle fine-tuning.

[0023] Furthermore, a threaded section is machined at the middle of the support rod 12, and a rotating cylinder 13 is threadedly connected to the threaded section of the support rod 12. The rotating cylinder 13 forms a threaded connection with the threaded section of the support rod 12 through its internal thread structure. A bearing 27 is fixedly installed on the top of the rotating cylinder 13 by welding or integral molding. The outer ring of the bearing 27 is fixedly connected to the movable cylinder 28, allowing the movable cylinder 28 to rotate or move with the outer ring of the bearing 27. A slide rail 33 is machined along the length of the second movable rod 11, and the laparoscopic body 18 is slidably connected to the slide rail 33, thereby realizing free movement along the direction of the slide rail 33.

[0024] When the operator manually rotates the rotating drum 13, the drum 13 moves up and down along the threaded section on the support rod 12, thereby adjusting the height of the overall structure. During the up-and-down movement of the rotating drum 13, it drives the movable drum 28, which is fixed to it, to move synchronously. As the movable drum 28 moves, it slides along the slide rail 33 on the second movable rod 11. This action causes a change in the angle between the second movable rod 11 and the first movable rod 10, allowing for flexible adjustment of their angles.

[0025] As the second movable lever 11 rotates around one end of the first movable lever 10, the third movable lever 14 will undergo a corresponding linear lifting and lowering motion. The lifting and lowering of the third movable lever 14 further pushes the rotating lever 15 to produce displacement. The movement of the rotating lever 15 ultimately causes the rotating cover 30 to swing up and down on the fixed ball 29, thereby achieving precise control of the pitch angle of the laparoscope body 18. This continuous transmission mechanism significantly expands the angle search range of the laparoscope body 18, enhancing its adaptability and flexibility during surgery.

[0026] Furthermore, a limiting rod 32 is slidably connected to the upper part of the third movable rod 14. Both ends of the limiting rod 32 are fixedly connected to driving rods 16. Simultaneously, a threaded rod 31 is rotatably connected to the bottom of each clamping block 34. The bottom of the clamping block 34 has threads that match the threaded rod 31. The driving rod 16 and the threaded rod 31 are linked through a fixed connection. In addition, one end of the threaded rod 31 is rotatably connected to the rotating cover 30 to ensure coordinated structural movement. An electromagnet 35 is fixedly installed on one side of each clamping block 34, and a conductive rod 36 is fixedly connected to the bottom of one side of each clamping block 34. Sliding rheostats 37 are fixedly installed on both sides of the bottom of the rotating cover 30. The conductive rod 36 and the sliding rheostat 37 are slidably connected, and the sliding rheostat 37 is electrically connected to the electromagnet 35 through the conductive rod 36. In this mechanism, when the third movable rod 14 moves, it synchronously drives the driving rod 16 to swing up and down, thereby causing the threaded rod 31 to rotate. Because the clamping blocks 34 and the drive rod 16 are threaded together, the rotation of the drive rod 16 further pushes the two clamping blocks 34 to move synchronously and in opposite directions on the rotating cover 30, thereby adjusting the clamping force of the two clamping blocks 34 on the laparoscope body 18. The laparoscope body 18 is suspended on the trocar by its own weight and can slide freely on the surface of the trocar. During this process, as the distance between the two clamping blocks 34 increases, the conductive rod 36 slides on the sliding rheostat 37, reducing its resistance. This causes the electromagnet 35 to be energized, resulting in decreased resistance and increased magnetic attraction. However, the increased distance between the two clamping blocks 34 weakens the restraint on the laparoscope body 18, making its position difficult to control. Therefore, by increasing the magnetic force of the electromagnet 35, the two clamping blocks 34 move towards each other, limiting the position of the metal laparoscope body 18 and controlling its movement speed along the Z-axis. If the laparoscope body 18 is left unattended, its lens may directly... Contact with the object being observed can cause harm to the patient. Two electromagnets 35, when energized, generate magnetism to control the movement speed of the laparoscope body 18. This allows for fine-tuning of the laparoscope body 18's position. Then, a slight rotation of the locking block 17 with the other hand fixes the angle between the second and third movable rods 11 and 14. Once the field of vision of the laparoscope body 18 is clear, it ensures that the laparoscope body 18 does not return to its initial position when the rotating cylinder 13 rotates in the reverse direction. Finally, by rotating the rotating cylinder 13 in the reverse direction, the drive rod 16 reverses, effectively locking the two clamping blocks 34 back onto the laparoscope body 18. This design allows the laparoscope body 18 to flexibly adjust its distance from the patient, simplifying and improving the efficiency of the operation, significantly enhancing the coordination of various instruments and the overall stability of the procedure.

[0027] A sealing cylinder 7 is fixedly installed at the bottom of the support frame 6. The bottom of the sealing cylinder 7 abuts against the top of the moving block 5. A sealing ring is installed between the sealing cylinder 7 and the moving block 5 to provide protection. This facilitates the overall disinfection of germs while preventing the second spring 24 from rusting and failing.

[0028] Example 2: Further, a fixing device for fixing the magnetic suction is installed on the adjustable clamping arm of the above-mentioned magnetic suction laparoscopic surgical instrument. A fixing component for locking the moving block 5 and the slide groove 2 is fixedly installed on the moving block 5. The fixing component includes a plurality of positioning holes 4 evenly distributed along the length direction of the slide groove 2. These positioning holes 4 are evenly opened on each slide groove 2 structure. A pair of hinge supports 22 are fixedly installed on each side of the moving block 5. Each hinge support 22 is connected to a pressure plate 19 by rotation. A first spring 21 is fixedly installed between the pressure plate 19 and the moving block 5 at one end to provide elastic restoring force. A locking ball 23 is fixedly installed at the other end of the pressure plate 19. The size of the locking ball 23 is precisely matched with the positioning hole 4 to achieve stable locking. An inwardly extending limiting mound 20 is also designed on the inner side of the moving block 5. Its shape matches the slide groove 2 and plays a sliding guiding and limiting role to ensure that the moving block 5 moves smoothly along the predetermined trajectory.

[0029] The positioning hole 4 is designed with a semi-circular structure to facilitate the insertion and disengagement of the locking ball 23. The hinge support 22 is made of metal, which has high strength and durability and can withstand the mechanical stress caused by repeated operations. When the surgical site changes, the base 1 can be flexibly adjusted to its position on the metal operating table as needed. During the adjustment process, the operator pinches one end of the pressure plates 19 on both sides with both hands, causing the pressure plates 19 to rotate around the hinge support 22, thereby compressing the first spring 21 and separating the locking ball 23 from the originally engaged positioning hole 4. At this time, the moving block 5 can be manually pushed to slide along the slide groove 2 to the target position. After releasing the pressure plates 19, under the rebound action of the first spring 21, the locking ball 23, due to its semi-circular shape, can easily re-align and engage with the new positioning hole 4. This mechanism significantly enhances the adjustment flexibility and adaptability of the entire device, enabling it to quickly respond to the position fixation needs in different surgical scenarios.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic laparoscopic surgical instrument adjustable clamping arm, comprising a base (1), characterized in that: The base (1) top fixedly installed with guide rail (3), the guide rail (3) both sides are provided with sliding slot (2), two the sliding slot (2) between sliding connection has moving block (5), the moving block (5) top fixedly installed with two type angle limit block (26), the moving block (5) top movably connected with support rod (12), the support rod (12) and two type angle limit block (26) slidingly connected, the moving block (5) top fixedly connected with support frame (6), the support frame (6) bottom hangs and is provided with the second spring (24), the support rod (12) bottom fixedly connected with one type angle limit block (25), one type angle limit block (25) and two type angle limit block (26) abut each other, the support rod (12) top fixedly installed with fixed ball (29), the fixed ball (29) is rotatably connected with rotating cover (30), the rotating cover (30) both sides are slidably connected with clamping block (34), two the clamping block (34) between detachably connected with laparoscope body (18).

2. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 1, wherein: The support rod (12) is fixedly connected with a handle (8) near the top of the support frame (6), the handle (8) top fixedly connected with a cover (9), the cover (9) is rotatably connected with a first movable rod (10), one end of the first movable rod (10) is rotatably connected with a second movable rod (11), one end of the second movable rod (11) is rotatably connected with a third movable rod (14), one end of the third movable rod (14) is rotatably connected with a rotating rod (15), the rotating rod (15) and the rotating cover (30) are fixedly connected together.

3. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 2, wherein: The second movable rod (11) is rotatably connected with a locking block (17) at one end, and threads are formed in the shaft end portions between the second movable rod (11) and the third movable rod (14), and the locking block (17) is threadedly connected with the shaft end portions between the second movable rod (11) and the third movable rod (14).

4. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 3, characterized in that: A limiting rod (32) is slidably connected to the third movable rod (14), and drive rods (16) are fixedly connected to both ends of the limiting rod (32), a threaded rod (31) is rotatably connected to the bottom of each clamping block (34), the drive rods (16) and the threaded rod (31) are fixedly connected together, and one end of the threaded rod (31) is rotatably connected with the rotating cover (30).

5. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 2, wherein: An electromagnet (35) is fixedly installed on one side of each clamping block (34), a conductive rod (36) is fixedly connected to the bottom of one side of the clamping block (34), slide rheostats (37) are fixedly installed on both sides of the top of the rotating cover (30), the conductive rod (36) and the slide rheostats (37) are slidably connected, and the slide rheostats (37) are electrically connected with the electromagnet (35) through the conductive rod (36).

6. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 2, wherein: The support rod (12) is provided with a threaded section in the middle, and a rotating drum (13) is threadedly connected to the threaded section of the support rod (12), the top of the rotating drum (13) is fixedly connected with a bearing (27), the outer ring of the bearing (27) is fixedly connected with a movable drum (28), the second movable rod (11) is provided with a sliding rail (33), and the laparoscope body (18) and the sliding rail (33) are slidably connected together.

7. The adjustable clamping arm of the magnetic laparoscopic surgical instrument according to claim 1, wherein: The support frame (6) is fixedly installed with an envelope (7) at the bottom, and the bottom of the envelope (7) abuts against the top of the moving block (5).

8. A magnetic suction type laparoscopic surgical instrument fixation device, characterized in that: The adjustable clamping arm for laparoscopic surgical instruments comprises the adjustable clamping arm according to any one of claims 1-7, and both sides of the base (1) are provided with at least two strong magnets, and the moving block (5) is fixedly installed with a fixing assembly for locking the moving block (5) and the sliding groove (2).

9. The magnetic laparoscopic surgical instrument fixation device of claim 8, wherein: The fixing assembly comprises a plurality of positioning holes (4) equidistantly arranged on each sliding groove (2), and each of the two sides of the moving block (5) is fixedly installed with a pair of hinge supports (22), each hinge support (22) is rotatably connected with a pressing plate (19), each first spring (21) is fixedly connected between one end of the pressing plate (19) and the moving block (5), the other end of the pressing plate (19) is fixedly installed with a clamping ball (23), the size of the clamping ball (23) and the positioning hole (4) is matched, and the moving block (5) extends inwardly so as to have a limiting hill (20) matched with the sliding groove (2).

10. The magnetic laparoscopic surgical instrument fixation device of claim 9, wherein: The positioning hole (4) is in a semicircular shape, and the clamping ball (23) is made of metal.

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