Bendable bipolar coagulation forceps with holding structure

Abstract

This invention relates to the field of medical device technology, specifically to a bendable bipolar electrocoagulation forceps with a grip structure. It includes a handle assembly, an electrode assembly, a control assembly, a bending assembly, and a forceps head assembly. The electrode assembly includes an electrode tube, an outer conductive tube, and an inner conductive rod. The control assembly includes a fixed base, a rotating unit, and a mounting base arranged sequentially. The control assembly is mounted on one end of the handle assembly via the fixed base, and a handle is provided at the other end of the handle assembly. The outer conductive tube of the electrode assembly is disposed within the mounting base and extends outwards. The electrode tube is disposed inside the handle assembly and electrically connected to the outer conductive tube. Both ends of the bending assembly are connected to the outer conductive tube and the forceps head assembly, respectively. One end of the inner conductive rod is connected to the forceps head assembly, and the other end is connected to the handle for controlling the opening and closing of the forceps head. The rotating unit also has a functional tube connected to the bending assembly. This invention enables a more stable bending process for surgical instruments, more reliable current conduction, and easier and more convenient operation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a bendable bipolar electrocoagulation forceps with a gripping structure. Background Technology

[0002] Electrocoagulation forceps are core medical devices for achieving precise hemostasis and tissue management in surgical procedures. They are widely used in various open surgeries and minimally invasive laparoscopic surgeries, including gastrointestinal surgery, hepatobiliary surgery, urology, and gynecology. They clamp tissue with forceps and conduct high-frequency current, using the thermal effect of the high-frequency current to achieve tissue sealing and hemostasis. They can also assist in tissue separation and other operations, making them one of the key instruments for improving surgical efficiency and ensuring surgical safety.

[0003] Currently, most traditional electrocoagulation forceps used in clinical practice are rigid structures. Their forceps bar and inner bar are rigid rods that cannot be bent after being connected to the forceps head. They can only be operated in a fixed direction. However, these rigid electrocoagulation forceps have obvious limitations in the small surgical field of laparoscopic surgery. They cannot flexibly adapt to the bending angle of anatomical structures and are difficult to accurately reach the target operation position. This not only increases the difficulty of the operation, but may also affect the surrounding normal tissues, affecting the hemostasis effect and postoperative recovery.

[0004] To address the aforementioned operational limitations, some bendable electrocoagulation forceps products have emerged in the existing technology. However, they still suffer from numerous technical defects. For example, the existing patent CN223874001U discloses an adjustable-direction electrocoagulation forceps that achieves bending by controlling the bending of the snake-like structure at the end of the forceps bar through a rotating unit. However, the snake-like structure is only connected to a slider inside the handle via two adjustment lines. The slider drives the adjustment lines to bend the snake-like structure, which can lead to the adjustment lines falling off or breaking during use. Furthermore, the forceps bar and snake-like structure are connected by abutting and then fixed, which poses a risk of separation after force is applied to the snake-like structure, resulting in a short circuit and affecting surgical safety. In addition, the snake-like structure is also fitted with a filling support tube, requiring medical personnel to apply greater force to bend it, thus affecting the normal surgical procedure. Therefore, there is an urgent need for a bendable bipolar electrocoagulation forceps with a grip structure that can make the bending process of the surgical instrument more stable, the current conduction more reliable, and the operation easier and more convenient. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and provide a bendable bipolar electrocoagulation clamp with a gripping structure.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A bendable bipolar electrocautery pliers with a grip structure includes a handle assembly, an electrode assembly, a control assembly, a bending assembly, and a pliers head assembly. The electrode assembly is electrically connected to a power cord group within the handle assembly and includes an electrode tube, an outer conductive tube, and an inner conductive rod. The control assembly includes a fixed base, a rotating unit, and a mounting base arranged sequentially. The control assembly is mounted on one end of the handle assembly via the fixed base, and a handle is provided at the other end of the handle assembly. The outer conductive tube of the electrode assembly is disposed within the mounting base and extends outward. The electrode tube is disposed inside the handle assembly and electrically connected to the outer conductive tube. Both ends of the bending assembly are connected to the outer conductive tube and the pliers head assembly, respectively. One end of the inner conductive rod is connected to the pliers head assembly, and the other end is connected to the handle for controlling the opening and closing of the pliers head. The rotating unit is also provided with a functional tube connected to the bending assembly.

[0007] Preferably, the fixing base is provided with a boss, a limiting part, a rotating part, a first slot and a first buckle in sequence along the direction of the protruding end of the electrode assembly. The fixing base is fixedly connected to the handle assembly through the boss and abuts against its end through the limiting part. The knob of the rotating unit is rotatably connected to the rotating part.

[0008] Preferably, the mounting base is provided with a second buckle and a second slot, which respectively engage and cooperate with the first slot and the first buckle on the fixed base for fixation. The mounting base is also provided with a conductive tube mounting groove and a mounting hole. The outer conductive tube includes a conductive tube mounting platform and a first conductive part and a second conductive part extending towards both ends. The outer conductive tube is fixedly mounted on the conductive tube mounting groove in the mounting base through the conductive tube mounting platform. The second conductive part is disposed inside the mounting hole and extends out. The extension length of the first conductive part does not exceed the end face position of the mounting base.

[0009] Preferably, the electrode tube is fixedly installed inside the handle assembly, extends toward the fixing seat and is disposed in the hollow structure inside the boss. The boss is symmetrically provided with spring piece fixing grooves, and conductive spring pieces are also fixedly installed in the spring piece fixing grooves to electrically connect the electrode tube to the outer conductive tube.

[0010] Preferably, the conductive spring includes a spring fixing buckle, a first abutment portion, an extension portion, and a second abutment portion arranged sequentially. Both the first abutment portion and the second abutment portion are inwardly recessed elastic structures. The conductive spring is fixedly installed on the spring fixing groove by the spring fixing buckle. The conductive spring abuts against the outer wall of the electrode tube through the first abutment portion and abuts against the outer wall of the first conductive portion on the outer conductive tube through the second abutment portion.

[0011] Preferably, the fixed base has a through groove at the position of the rotating part, and a ring-shaped movable block is threadedly connected inside the knob. The movable block is sleeved on the rotating part, and two sets of limiting posts are symmetrically arranged inside the movable block. The limiting posts are set in the movable groove to prevent the movable block from rotating during displacement. The movable block is threadedly connected to the inner wall of the knob by the threads on its outer wall. A connector is fixed between the two sets of limiting posts. The functional tube is fixedly connected to the movable block through the connector. The connector also has a through hole for the inner conductive rod to pass through. The functional tube is located inside the outer conductive tube.

[0012] Preferably, the bending assembly includes a first fixing member and a second fixing member at both ends, and a plurality of snake-bone joints disposed between the two fixing members. The bending assembly is fixedly connected to the end of the protruding end of the outer conductive tube through the first fixing member, and fixedly connected to the pliers assembly through the second fixing member. A through hole is provided at the center of the first fixing member, the second fixing member, and the snake-bone joints for the inner conductive rod to pass through.

[0013] Preferably, the bending assembly is provided with a connecting tongue and two sets of pre-tightening steel wires that pass through the first fixing member, the second fixing member, and several of the snake-bone joints and connect them. The first fixing member and the second fixing member are provided with tongue fixing grooves. The connecting tongue is fixedly disposed in the tongue fixing grooves and connects the two fixing members. The connecting tongue extends toward the first fixing member and protrudes outwards, and its protruding end is fixedly connected to the end of the functional tube. Two sets of steel wire fixing holes are also symmetrically disposed along the vertical direction of the tongue fixing groove cross-section. The two sets of pre-tightening steel wires pass through and are fixedly disposed in the steel wire fixing holes of the two fixing members.

[0014] Preferably, the snake joint has a tongue hole and a wire hole at the positions corresponding to the tongue fixing groove and the wire fixing hole. Two sets of pre-tightening wires are inserted through the wire holes and a pre-tightening force is applied. The connecting tongue is inserted through and movably disposed in the tongue hole. A bending gap is provided on the side of the snake joint opposite to the installation position of the connecting tongue, so that the snake joint bends toward the side of the bending gap.

[0015] Preferably, the pliers assembly includes a first pliers head and a second pliers head. The first pliers head is fixedly connected to the bending assembly and electrically connected to the outer conductive tube through the bending assembly. The second pliers head is fixedly connected to the inner conductive rod. The opening and closing of the second pliers head and the first pliers head are controlled by controlling the handle. The handle assembly also includes a fixed electrode seat and an elastic electrode seat electrically connected to the power cord assembly. The electrode tube is fixedly connected to the fixed electrode seat. The elastic electrode seat abuts against the outer wall of the inner conductive rod through two symmetrical arc-shaped elastic parts. Insulating sleeves are fitted on the outer walls of both the outer conductive tube and the inner conductive rod.

[0016] In summary, the beneficial effects of this invention are as follows: The bendable bipolar electrocoagulation forceps described in this invention features a separate design for the electrode tube and the external conductive tube. This design ensures that the positive current conduction is completely independent of the rotating unit, preventing the knob from affecting current conduction when adjusting the bending component. The conductive spring design between the electrode tube and the external conductive tube guarantees continuous current flow, greatly improving the reliability and safety of the surgical instrument during surgery. Furthermore, the bending component is fixedly connected to the adjustable functional tube via a connecting tongue. Adjusting the displacement of the functional tube compresses the connecting tongue, generating tension that causes the serpentine joint of the bending component to bend towards the bending gap. The stability of the connecting tongue structure far exceeds that of traditional push-pull steel wire ropes, preventing wire rope breakage during push-pull operations and improving the stability of the surgical instrument during bending. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the electrocautery clamp of the present invention; Figure 2 This is a schematic diagram of the internal structure of the electrocautery clamp of the present invention; Figure 3 This is a schematic diagram of the internal structure of the control component of the present invention; Figure 4 This is a schematic diagram of the fixing base structure of the present invention; Figure 5 This is a schematic diagram of the mounting base structure of the present invention; Figure 6 This is a schematic diagram of the conductive spring mounting structure of the present invention; Figure 7 This is a schematic diagram of the conductive path of the electrode tube in this invention; Figure 8 This is a schematic diagram of the movable block mounting structure of the present invention; Figure 9 This is a schematic diagram of the fastener structure of the present invention; Figure 10This is a schematic diagram of the snake-bone joint structure of the present invention; Figure 11 This is a schematic diagram of the bending component structure of the present invention; Figure 12 This is a schematic diagram of the bending component installation structure of the present invention.

[0018] The diagram shows the following markings: 1. Handle assembly; 11. Grip; 12. Power cord assembly; 13. Fixed electrode base; 14. Elastic electrode base; 2. Electrode assembly; 21. Electrode tube; 22. Outer conductive tube; 221. Conductive tube mounting platform; 222. First conductive part; 223. Second conductive part; 23. Inner conductive rod; 24. Conductive spring; 241. Spring fixing buckle; 242. First abutment part; 243. Extension part; 244. Second abutment part; 3. Control assembly; 31. Fixed base; 311. Boss; 312. Limiting part; 313. Rotating part; 314. First slot; 315. First buckle; 316. Spring fixing slot; 317. Movable slot; 32. Rotating unit; 321. Functional tube; 322. Knob; 323. Movable block; 3231. Limiting post; 3232. Connector; 3233. Through hole; 33. Mounting base; 331. Second buckle; 332. Second slot; 333. Conductive tube mounting slot; 334. Mounting hole; 4. Bending assembly; 401. Tongue fixing slot; 402. Steel wire fixing hole; 403. Through hole; 41. First fixing member; 42. Second fixing member; 43. Snake joint; 431. Tongue hole; 432. Steel wire hole; 433. Bending gap; 44. Connecting tongue; 45. Pre-tightening steel wire; 5. Pliers head assembly; 51. First pliers head; 52. Second pliers head. Detailed Implementation

[0019] The following specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example

[0022] according to Figure 1 , Figure 2As shown, a bendable bipolar electrocautery pliers with a grip structure includes a handle assembly 1, an electrode assembly 2, a control assembly 3, a bending assembly 4, and a pliers head assembly 5. The electrode assembly 2 is electrically connected to the power cord assembly 12 inside the handle assembly 1 and includes an electrode tube 21, an outer conductive tube 22, and an inner conductive rod 23. The control assembly 3 includes a fixed base 31, a rotating unit 32, and a mounting base 33 arranged sequentially. The control assembly 3 is mounted on one end of the handle assembly 1 through the fixed base 31. A handle 11 is provided at the other end of the handle assembly 1. The outer conductive tube 22 of the electrode assembly 2 is disposed in the mounting base 33 and extends out. The electrode tube 21 is disposed inside the handle assembly 1 and electrically connected to the outer conductive tube 22. The two ends of the bending assembly 4 are respectively connected to the outer conductive tube 22 and the pliers head assembly 5. One end of the inner conductive rod 23 is connected to the pliers head assembly 5, and the other end is connected to the handle 11 for controlling the opening and closing of the pliers head. The rotating unit 32 is also provided with a functional tube 321 connected to the bending assembly 4.

[0023] according to Figures 3 to 5 As shown, the fixing base 31 is provided with a boss 311, a limiting part 312, a rotating part 313, a first slot 314, and a first buckle 315 in sequence along the extension direction of the electrode assembly 2. The fixing base 31 is fixedly connected to the handle assembly 1 through the boss 311 and abuts against its end through the limiting part 312. The knob 322 of the rotating unit 32 is rotatably connected to the rotating part 313. The mounting base 33 is provided with a second buckle 331 and a second slot 332 that respectively engage with the first slot 314 and the first buckle 315 on the fixing base 31. The buckle 315 engages and secures the outer conductive tube. The mounting base 33 is also provided with a conductive tube mounting groove 333 and a mounting hole 334. The outer conductive tube 22 includes a conductive tube mounting platform 221 and a first conductive part 222 and a second conductive part 223 extending towards both ends. The outer conductive tube 22 is fixedly mounted on the conductive tube mounting groove 333 in the mounting base 33 through the conductive tube mounting platform 221. The second conductive part 223 is disposed inside the mounting hole 334 and extends out. The extension length of the first conductive part 222 does not exceed the end face position of the mounting base 33.

[0024] The control component 3 includes a fixed base 31, a rotating unit 32, and a mounting base 33. The rotating unit 32 and the mounting base 33 are both mounted on the fixed base 31. The fixed base 31 is fixedly mounted at the end of the working end of the handle assembly 1 via a boss 311. The rotating unit 32 is rotatably mounted on the rotating part 313. The second buckle 331 of the mounting base 33 is engaged in the first slot 314 of the fixed base 31, and the first buckle 315 of the fixed base 31 is engaged in the second slot 332 of the mounting base 33. The two are engaged and fixed. The outer conductive tube 22 of the electrode assembly 2 is mounted on the conductive tube mounting groove 333 in the mounting base 33 via a conductive tube mounting platform 221. The second conductive part 223 of the outer conductive tube 22 extends out of the control component 3 through the mounting hole 334, while the first conductive part 222 extends toward the handle assembly 1.

[0025] according to Figure 6 , Figure 7 As shown, the electrode tube 21 is fixedly installed inside the handle assembly 1, extending towards the fixing base 31 and set in the hollow structure inside the boss 311. The boss 311 is symmetrically provided with spring piece fixing grooves 316. Conductive spring pieces 24 are also fixedly installed in the spring piece fixing grooves 316 to electrically connect the electrode tube 21 to the outer conductive tube 22. The conductive spring piece 24 includes a spring piece fixing buckle 241, a first abutting part 242, an extension part 243 and a second abutting part 244 arranged in sequence. The first abutting part 242 and the second abutting part 244 are both inwardly recessed elastic structures. The conductive spring piece 24 is fixedly installed on the spring piece fixing groove 316 through the spring piece fixing buckle 241. The conductive spring piece 24 abuts against the outer wall of the electrode tube 21 through the first abutting part 242 and abuts against the outer wall of the first conductive part 222 on the outer conductive tube 22 through the second abutting part 244.

[0026] The electrode tube 21 is connected to the positive current, and the inner conductive rod 23 is connected to the negative current. The electrode tube 21 and the outer conductive tube 22 are segmented, and a control component 3 is provided between them to control the bending activity of the bending component 4. The segmented design of the electrode tube 21 and the outer conductive tube 22 ensures that the current conduction process is not affected during bending adjustment, so that the current conduction can always remain stable. Two sets of conductive springs 24 are symmetrically arranged between the electrode tube 21 and the outer conductive tube 22 to connect them. The conductive springs 24 are fixedly installed in the spring fixing grooves 316 on the boss 311 by spring fixing buckles 241 and extend towards the outer conductive tube 22. Several inwardly recessed first abutment portions 242 are provided on the extension path that overlaps with the electrode tube 21. The first abutment portions 242 are kept in contact with the outer wall of the electrode tube 21 by their own elasticity. The contact ensures that the current can be conducted through the electrode tube 21 to the conductive spring 24. The part of the conductive spring 24 that overlaps with the rotating unit 32 is set as a smooth extension 243. The extension 243 avoids contact with the rotating unit 32, so that the rotating unit 32 will not interfere with the current conduction function of the conductive spring 24. Then, the part of the conductive spring 24 that overlaps with the first conductive part 222 of the outer conductive tube 22 is provided with an inwardly recessed second abutment 244. The second abutment 244 is kept in contact with the outer wall of the first conductive part 222 by its own elasticity, so that the current of the conductive spring 24 and the outer conductive tube 22 can be conducted, so that the current of the electrode tube 21 can be finally conducted to the clamp assembly 5 at the end, and the current conduction path is not affected by other dynamic interference, thereby improving the stability of current conduction and the safety of the surgical procedure.

[0027] according to Figure 8As shown, the fixed base 31 is located at the position of the rotating part 313 and has a through groove 317. The knob 322 is also threaded with a ring-shaped movable block 323. The movable block 323 is sleeved on the rotating part 313, and two sets of limiting posts 3231 are symmetrically arranged inside the movable block 323. The limiting posts 3231 are set in the movable groove 317 to prevent the movable block 323 from rotating when it is displaced. The movable block 323 is threadedly connected to the inner wall of the knob 322 by the threads on the outer wall. A connector 3232 is also fixed between the two sets of limiting posts 3231. The functional tube 321 is fixedly connected to the movable block 323 by the connector 3232. The connector 3232 is also provided with a through hole 3233 for the inner conductive rod 23 to pass through. The functional tube 321 is located inside the outer conductive tube 22.

[0028] The internal thread of the knob 322 is threadedly connected to the external thread of the movable block 323. When the knob 322 is rotated, since the limiting post 3231 in the movable block 323 is set in the movable groove 317 of the fixed base 31, the movable block 323 will only move horizontally along the movable groove 317 and will not rotate. Therefore, rotating the knob 322 will only drive the movable block 323 to move horizontally along the movable groove 317. Since the connector 3232 is fixedly set on the movable block 323 and fixedly connected to the functional tube 321, the movable block 323 can drive the functional tube 321 to move together. The movement of the functional tube 321 will drive the bending component 4 at the end to bend or straighten, thereby realizing the bending activity of the bending component 4 controlled by rotating the knob 322. The functional tube 321 is set inside the outer conductive tube 22, and the two do not interfere with each other.

[0029] according to Figures 9 to 11 As shown, the bending assembly 4 includes a first fixing member 41 and a second fixing member 42 at both ends, and a plurality of snake-bone joints 43 disposed between the two fixing members. The bending assembly 4 is fixedly connected to the end of the protruding end of the outer conductive tube 22 through the first fixing member 41, and fixedly connected to the pliers assembly 5 through the second fixing member 42. A through hole 403 is provided at the center of the first fixing member 41, the second fixing member 42 and the snake-bone joints 43 for the inner conductive rod 23 to pass through.

[0030] The bending assembly 4 is fixedly connected to the end of the outer conductive tube 22 via the first fixing member 41, enabling the positive current to be conducted from the outer conductive tube 22 to the bending assembly 4. The bending assembly 4 is fixedly connected to the clamp head assembly 5 via the second fixing member 42. Since the first clamp head 51 of the clamp head assembly 5 is electrically connected to the outer conductive tube 22 and the second clamp head 52 is electrically connected to the inner conductive rod 23, the positive current is conducted from the bending assembly 4 to the first clamp head 51. The inner conductive rod 23 is connected to the second clamp head 52 through the through hole 403, enabling the negative current to be conducted to the second clamp head 52. The first fixing member 41 and the second fixing member 42 of the bending assembly 4 are fixedly connected by welding or riveting, etc., to ensure the reliability of the surgical instrument operation.

[0031] according to Figures 10 to 12 As shown, the bending assembly 4 is provided with a connecting tongue 44 and two sets of pre-tensioned steel wires 45, which pass through the first fixing member 41, the second fixing member 42, and several snake-bone joints 43 respectively and connect them. The first fixing member 41 and the second fixing member 42 are provided with tongue fixing grooves 401. The connecting tongue 44 is fixedly installed in the tongue fixing grooves 401 and connects the two fixing members. The connecting tongue 44 extends towards the first fixing member 41 and protrudes outwards, and its protruding end is fixedly connected to the end of the functional tube 321. Two sets of steel wire fixing holes are also symmetrically provided along the vertical direction of the cross-section of the tongue fixing groove 401. 402, two sets of pre-tightening steel wires 45 are inserted and fixedly installed in the steel wire fixing holes 402 of the two fasteners; the snake joint 43 has a tongue hole 431 and a steel wire hole 432 at the position corresponding to the tongue fixing groove 401 and the steel wire fixing hole 402, the two sets of pre-tightening steel wires 45 are inserted and installed in the steel wire hole 432 and a pre-tightening force is applied, the connecting tongue 44 is inserted and movably installed in the tongue hole 431, the snake joint 43 has a bending gap 433 on the side opposite to the installation position of the connecting tongue 44, and the snake joint 43 bends toward the side of the bending gap 433.

[0032] The pre-tensioning wire 45 provides initial pre-tension to several snake joints 43 between the two fixing members, giving the surgical instrument a certain rigidity to meet the needs of the surgical procedure. Since the first fixing member 41 is fixedly installed at the end of the external conductive tube 22 and the functional tube 321 is installed inside the external conductive tube 22, when the adjusting knob 322 moves the functional tube 321, the functional tube 321 will squeeze the connecting tongue 44 at the end. The connecting tongue 44 is made of spring steel and has good elasticity. Therefore, after being squeezed, the connecting tongue 44 will deform and generate tension. The tension will cause the snake joint 43 to bend in the direction where the bending gap 433 is provided, thereby realizing the bending of the bending component 4. When the knob 322 is rotated in the opposite direction, the functional tube 321 returns to its original position, the tension generated by the connecting tongue 44 disappears, the snake joint 43 returns to its original position, and the bending component 4 straightens.

[0033] The pliers assembly 5 includes a first pliers head 51 and a second pliers head 52. The first pliers head 51 is fixedly connected to the bending assembly 4 and electrically connected to the outer conductive tube 22 through the bending assembly 4. The second pliers head 52 is fixedly connected to the inner conductive rod 23. The opening and closing of the second pliers head 52 and the first pliers head 51 are controlled by controlling the handle 11. The handle assembly 1 is also provided with a fixed electrode seat 13 and an elastic electrode seat 14, which are electrically connected to the power cord assembly 12. The electrode tube 21 is fixedly connected to the fixed electrode seat 13. The elastic electrode seat 14 abuts against the outer wall of the inner conductive rod 23 through two symmetrical arc-shaped elastic parts. The inner conductive rod 23 is made of conductive cable or spring steel, so that the inner conductive rod 23 can still control the opening and closing of the pliers assembly 5 when bending with the bending assembly 4. Insulating sleeves are provided on the outer walls of the outer conductive tube 22 and the inner conductive rod 23.

Claims

1. A bendable bipolar electrocautery clamp with a gripping structure, characterized in that, The pliers include a handle assembly (1), an electrode assembly (2), a control assembly (3), a bending assembly (4), and a pliers head assembly (5). The electrode assembly (2) is electrically connected to the power cord assembly (12) inside the handle assembly (1) and includes an electrode tube (21), an outer conductive tube (22), and an inner conductive rod (23). The control assembly (3) includes a fixed base (31), a rotating unit (32), and a mounting base (33) arranged in sequence. The control assembly (3) is mounted on one end of the handle assembly (1) through the fixed base (31). The other end of the handle assembly (1) is provided with a grip (11). The outer conductive tube (22) of the electrode assembly (2) is disposed inside the mounting base (33) and extends outwards. The electrode tube (21) is disposed inside the handle assembly (1) and electrically connected to the outer conductive tube (22). The two ends of the bending assembly (4) are respectively connected to the outer conductive tube (22) and the pliers assembly (5). One end of the inner conductive rod (23) is connected to the pliers assembly (5), and the other end is connected to the handle (11) for controlling the opening and closing of the pliers. The rotating unit (32) is also provided with a functional tube (321) connected to the bending assembly (4). The bending assembly (4) includes a first fixing member (41) and a second fixing member (42) at both ends, and a plurality of snake-bone joints (43) disposed between the two fixing members. The bending assembly (4) is fixedly connected to the end of the protruding end of the outer conductive tube (22) through the first fixing member (41), and fixedly connected to the pliers assembly (5) through the second fixing member (42). A through hole (403) is provided at the center of the first fixing member (41), the second fixing member (42) and the snake-bone joints (43) for the inner conductive rod (23) to pass through. The bending assembly (4) is provided with a connecting tongue (44) and two sets of pre-tightening steel wires (45) which pass through the first fixing member (41), the second fixing member (42) and several snake bone joints (43) respectively and connect them. The first fixing member (41) and the second fixing member (42) are provided with tongue fixing grooves (401). The connecting tongue (44) is fixedly installed in the tongue fixing groove (401) and connects the two fixing members. The connecting tongue (44) extends and protrudes towards the first fixing member (41), and its protruding end is fixedly connected to the end of the functional tube (321). Two sets of steel wire fixing holes (402) are also symmetrically opened along the vertical direction of the cross section of the tongue fixing groove (401). The two sets of pre-tightening steel wires (45) pass through and are fixedly installed in the steel wire fixing holes (402) of the two fixing members.

2. The bendable bipolar electrocautery pliers with a gripping structure according to claim 1, characterized in that, The fixing base (31) is provided with a boss (311), a limiting part (312), a rotating part (313), a first slot (314) and a first buckle (315) in sequence along the extension direction of the electrode assembly (2). The fixing base (31) is fixedly connected to the handle assembly (1) through the boss (311) and abuts against its end through the limiting part (312). The knob (322) of the rotating unit (32) is rotatably connected to the rotating part (313).

3. The bendable bipolar electrocautery clamp with a gripping structure according to claim 2, characterized in that, The mounting base (33) is provided with a second buckle (331) and a second slot (332) which are respectively engaged and fixed with the first slot (314) and the first buckle (315) on the fixed base (31). The mounting base (33) is also provided with a conductive tube mounting groove (333) and a mounting hole (334). The external conductive tube (22) includes a conductive tube mounting platform (221) and a first conductive part (222) and a second conductive part (223) extending towards both ends. The external conductive tube (22) is fixedly installed on the conductive tube mounting groove (333) in the mounting base (33) through the conductive tube mounting platform (221). The second conductive part (223) is located inside the mounting hole (334) and extends out. The extension length of the first conductive part (222) does not exceed the end face position of the mounting base (33).

4. The bendable bipolar electrocautery pliers with a gripping structure according to claim 3, characterized in that, The electrode tube (21) is fixedly installed inside the handle assembly (1), extends toward the fixing seat (31) and is disposed in the hollow structure inside the boss (311). The boss (311) is symmetrically provided with spring plate fixing grooves (316), and a conductive spring plate (24) is also fixedly installed in the spring plate fixing groove (316) to electrically connect the electrode tube (21) with the external conductive tube (22).

5. The bendable bipolar electrocautery pliers with a gripping structure according to claim 4, characterized in that, The conductive spring (24) includes a spring fixing buckle (241), a first abutment (242), an extension (243), and a second abutment (244) arranged in sequence. The first abutment (242) and the second abutment (244) are both inwardly recessed elastic structures. The conductive spring (24) is fixedly installed on the spring fixing groove (316) by the spring fixing buckle (241). The conductive spring (24) abuts against the outer wall of the electrode tube (21) through the first abutment (242) and abuts against the outer wall of the first conductive part (222) on the outer conductive tube (22) through the second abutment (244).

6. The bendable bipolar electrocautery clamp with a gripping structure according to claim 2, characterized in that, The fixed base (31) is located at the position of the rotating part (313) and has a through-hole (317). The knob (322) is also threaded with a ring-shaped movable block (323). The movable block (323) is sleeved on the rotating part (313), and two sets of limiting posts (3231) are symmetrically arranged inside the movable block (323). The limiting posts (3231) are located in the movable groove (317) to prevent the movable block (323) from rotating during displacement. The movable block (323) is threadedly connected to the inner wall of the knob (322) through the threads on the outer wall. A connector (3232) is also fixed between the two sets of limiting posts (3231). The functional tube (321) is fixedly connected to the movable block (323) through the connector (3232). The connector (3232) is also provided with a through hole (3233) for the inner conductive rod (23) to pass through. The functional tube (321) is located inside the outer conductive tube (22).

7. The bendable bipolar electrocautery clamp with a gripping structure according to claim 1, characterized in that, The snake joint (43) has a tongue hole (431) and a wire hole (432) at the positions corresponding to the tongue fixing groove (401) and the wire fixing hole (402). Two sets of pre-tightening wires (45) are inserted through the wire hole (432) and a pre-tightening force is applied. The connecting tongue (44) is inserted through and movably disposed in the tongue hole (431). A bending gap (433) is provided on the side of the snake joint (43) opposite to the installation position of the connecting tongue (44), so that the snake joint (43) bends toward the side of the bending gap (433).

8. The bendable bipolar electrocautery pliers with a gripping structure according to claim 1, characterized in that, The pliers assembly (5) includes a first pliers (51) and a second pliers (52). The first pliers (51) is fixedly connected to the bending assembly (4) and electrically connected to the outer conductive tube (22) through the bending assembly (4). The second pliers (52) is fixedly connected to the inner conductive rod (23). The opening and closing of the second pliers (52) and the first pliers (51) is controlled by controlling the handle (11). The handle assembly (1) is also provided with a fixed electrode seat (13) and an elastic electrode seat (14) electrically connected to the power cord group (12). The electrode tube (21) is fixedly connected to the fixed electrode seat (13). The elastic electrode seat (14) abuts against the outer wall of the inner conductive rod (23) through two symmetrical arc-shaped elastic parts. Insulating sleeves are provided on the outer walls of the outer conductive tube (22) and the inner conductive rod (23).

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