Bipolar electrocoagulation instrument with water and electricity synergism

Abstract

The invention discloses a bipolar electrocoagulation instrument with water and electricity synergism, relates to the technical field of medical instruments, and can solve the problem that an existing bipolar electrocoagulation instrument is poor in water and electricity coordination. The bipolar electrocoagulation instrument comprises a handle part, a rod body part and a forceps head part, the forceps head part is arranged at the end, away from the handle part, of the rod body part, and a traction driving assembly used for controlling the opening and closing state of the forceps head part and a water and electricity joint control assembly used for controlling water and electricity on-off of the forceps head part are arranged in the handle part; the water path and the circuit of the plier head part are in a simultaneous on state or a simultaneous off state through the water and electricity joint control assembly, and when the plier head part is in the on state, the water and electricity joint control assembly is limited by the traction driving assembly, so that the water path and the circuit of the plier head part are in a normally off state.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a water-electricity synergistic bipolar electrocoagulation device. Background Art

[0002] Bipolar coagulation devices utilize the thermal effects of high-frequency current to denature and coagulate protein tissue, dehydrate and shrink blood vessel walls, and fuse the blood vessel and clot together, effectively stopping bleeding. During use, energy is concentrated only between the two electrodes, requiring significantly less power than monopolar devices, minimizing heat dissipation and damage to adjacent tissues.

[0003] Ordinary bipolar electrocoagulation instruments mainly consist of a forceps head, a forceps rod, an operating handle, a high-frequency cable, etc., and the closing of the forceps head is controlled by the operating handle. In laparoscopic surgery, due to the limitations of the laparoscope, the operating space of ordinary bipolar electrocoagulation instruments is relatively small, making it difficult to reach the desired tissue position and perform electrocoagulation to stop bleeding. At the same time, existing bipolar electrocoagulation instruments still have some disadvantages in the electrocoagulation hemostasis process, such as: 1. The tissue surface is scabbed and sticky during the coagulation process, resulting in a decrease in the coagulation effect; 2. Excessive tissue damage causes carbonization and damage to the tissue or blood vessels; 3. After electrocoagulation, the tissue adheres to the forceps blade, which can easily tear the tissue or render the electrocoagulation or blood vessel closure ineffective during the withdrawal of the surgical instrument. Although some doctors use saline solution to cool the wound and prevent adhesion during open surgery, the actual operation is very inconvenient. At the same time, the saline solution is kept open throughout the entire operation, and there is a constant dripping of water from the end of the instrument, which not only affects the surgical operation but also increases the safety risk of the operation.

[0004] Based on the above background, the inventors have designed a hydroelectric synergistic bipolar electrocoagulation instrument to solve at least one of the above problems, and thus proposed the present application. Summary of the Invention

[0005] The purpose of this application is to provide a water-electricity coordinated bipolar coagulation device, which can solve the problem of poor water-electricity coordination of existing bipolar coagulation devices.

[0006] To solve the above problems, this application provides the following technical solutions: The present application provides a hydroelectricity-coordinated bipolar electrocoagulation instrument, comprising a handle, a shaft, and a clamp head, wherein the clamp head is arranged at one end of the shaft away from the handle, wherein: The handle is provided with a pulling drive component for controlling the opening and closing state of the clamp head and a water and electricity joint control component for controlling the water and electricity on and off of the clamp head; The water circuit and the electric circuit of the clamp head are in a simultaneous connected state or a simultaneous disconnected state through the water-electricity joint control component; When the clamp head is in the open state, the water and electricity joint control component is restricted by the pulling drive component so that the water circuit and the circuit of the clamp head are in a normally disconnected state.

[0007] Optionally, the water-electricity joint control assembly includes a control button, a rotary transmission structure, a return spring, a circuit control board and a waterway control lever; The rotary transmission structure is rotatably connected in the handle portion, and the rotary transmission structure and the rotating axis are divided into a power input section and a power output section. The control button is arranged on the handle portion and is arranged toward the power input section of the transmission structure. One end of the return spring is connected in the handle portion, and the other end is connected to the power output section of the rotary transmission structure. The control switch of the circuit control board and the power input end of the waterway control lever are both arranged toward the power output section of the rotary transmission structure.

[0008] Optionally, the rotary transmission structure is in a Z-shape; A top-pressing boss is provided on the power output section of the rotary transmission structure; When the control button is pressed, the pressing boss presses on the control switch of the circuit control board, and the circuit is connected. At the same time, the power output section of the rotary transmission structure and the waterway control rod are separated from each other, and the waterway is connected. A baffle is provided in the handle portion and is arranged opposite to the end of the waterway control rod away from the rotary transmission structure, and the waterway is located between the waterway control rod and the baffle.

[0009] Optionally, the power output section of the rotary transmission structure is provided with an arc-shaped avoidance structure for avoiding the shaft portion extending into the handle portion.

[0010] Optionally, the pliers head portion includes a pliers plate mounting end, a fixed pliers plate and a movable pliers plate, and the shaft portion includes a movable tube assembly and a fixed tube assembly whose ends extend into the handle portion; The fixed nipper is fixed to the nipper mounting end, the movable nipper is rotatably connected to the nipper mounting end, the movable pipe assembly is fixedly connected to the movable nipper, and the fixed pipe assembly is fixedly connected to the fixed nipper; The opening and closing state switching of the clamp head is achieved by pulling the driving assembly to drive the movable tube assembly to pull the movable clamp plate to rotate on the clamp plate mounting end head.

[0011] Optionally, the handle portion includes a mounting portion and a fixed grip; The pulling drive assembly and the water-electricity joint control assembly are both arranged in the installation part; The pulling drive assembly includes a movable grip rotatably connected to the mounting portion, a club body, a push tube structure and a movable conductive sleeve; One end of the club body is fixed on the movable grip, and the other end is movably connected to the push tube structure. The push tube structure is arranged in the mounting part and can be slidably connected to the mounting part along the axial direction of the shaft. The push tube structure is fixedly connected to the movable conductive sleeve, and the movable conductive sleeve is sleeved on the movable tube assembly and fixedly connected to it.

[0012] Optionally, the push tube structure includes a fixedly connected sleeve push plate, a club mounting plate and a limit plate; The club mounting plate is arranged parallel to the axis of the movable conductive sleeve, and the club body is movably connected to the club mounting plate; The sleeve push plate is arranged perpendicular to the club mounting plate and the movable conductive sleeve. The movable conductive sleeve is provided with a limiting ring groove. The sleeve push plate is sleeved in the limiting ring groove. The movable conductive sleeve can rotate freely in the sleeve push plate. The end of the limit plate away from the club mounting plate is arranged toward and close to the power output end of the water-electricity joint control component.

[0013] Optionally, a plurality of first jaw teeth and a plurality of second jaw teeth are respectively provided on opposite sides of the fixed jaw plate and the movable jaw plate; The fixed clamp plate is further provided with a U-shaped flow channel and a drain port located in the U-shaped flow channel, and the drain port is communicated with the interior of the fixed pipe assembly.

[0014] Optionally, a through hole is provided in the clamp plate mounting end, and a mounting shaft column is located in the through hole; The movable nipper also includes a rotating arc plate segment, and the movable nipper is rotatably connected to the mounting shaft column of the nipper mounting end through the rotating arc plate segment; The movable tube assembly includes a conductive pulling rod, one end of which is away from the clamp head and is conductively connected to the movable conductive sleeve; The clamp head also includes a conductive connecting plate, one end of which is electrically and fixedly connected to the conductive pulling rod, and the other end of which is electrically and fixedly connected to the rotating arc plate segment of the movable clamp plate; The fixed pipe assembly includes a fixed pipe body with a liquid flow channel inside, and the liquid flow channel in the fixed pipe body is connected to the drain port on the fixed clamp plate; It also includes a water supply component, the water outlet end of the water supply component is connected to the fixed pipe body.

[0015] Optionally, a knob is fixedly mounted on the shaft portion for driving the shaft portion and the pliers head portion to freely rotate along the central axis of the shaft portion, and the knob is rotatably connected to the handle portion.

[0016] Beneficial effects of the present invention: 1. By setting up a water-electricity joint control component in the handle, the present application allows the surgeon to achieve the simultaneous connection or disconnection of the water and electric circuits in the forceps head through a single action, realizing the technical ingenuity of dripping water while electrocoagulation and not dripping water when not electrocoagulating, which can effectively solve the problem of poor water-electricity coordination of existing bipolar electrocoagulation instruments.

[0017] In addition, when the clamp head of the present application is in the open state, the pulling drive component can play a linkage limiting role on the water and electricity control component, preventing the water and electricity control component from triggering the water circuit and circuit of the clamp head from being disconnected and turned on. When the clamp head is in the open state, it plays a safety role and prevents the water and circuit of the clamp head from being connected, thereby reducing the risk of misoperation by the surgeon and avoiding electrocoagulation of non-lesional tissue, thereby increasing the safety of the operation.

[0018] 3. The present application designs a U-shaped flow channel on the fixed clamp plate that matches its shape, and the fixed clamp plate and the movable clamp plate are respectively provided with a plurality of first clamp teeth and second clamp teeth, which can make tissue damage during the electrocoagulation process more uniform and stable, reduce and minimize the scabbing and adhesion that occur during the electrocoagulation process, reduce the action area, and increase surgical safety.

[0019] 4. By installing a fixed knob on the shaft, the present application can realize that the forceps head can be rotated at any angle along the shaft while meeting the precise dripping function, thereby increasing surgical flexibility and facilitating the operator's operation. In addition, its compact structure makes the shaft smaller, which is more conducive to laparoscopic surgical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the clamp head in the open state in the embodiment of the present application.

[0021] Figure 2 This is a schematic diagram of the internal structure of the handle when the pliers head is in the open state in the embodiment of the present application.

[0022] Figure 3 for Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0023] Figure 4 This is a schematic diagram of the internal structure of the handle when the pliers head is in a closed state in an embodiment of the present application.

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamp head when the clamp head is in the open state in the embodiment of the present application.

[0025] Figure 6 This is a schematic cross-sectional structural diagram of the clamp head when the clamp head is in an open state in an embodiment of the present application.

[0026] Figure 7 This is a schematic cross-sectional structural diagram of the shaft portion of an embodiment of the present application.

[0027] Figure 8 This is another schematic cross-sectional view of the clamp head in an embodiment of the present application.

[0028] Description of reference numerals: 1-handle part, 11-fixed grip, 12-mounting part, 121-baffle, 2-clamp head, 21-fixed clamp plate, 211-first clamp tooth, 212-U-shaped flow channel, 213-drainage outlet, 22-movable clamp plate, 221-second clamp tooth, 222-rotating arc plate segment, 23-clamp plate mounting end, 231-through hole, 232-mounting shaft column, 233-end connecting section, 24-conductive connecting plate, 3-rod body, 30-outer sheath, 31-movable tube assembly, 311-conductive pulling rod, 312-pulling rod protective cover, 313-pulling tube, 32-fixed tube assembly, 321-fixed tube body, 322-fixed tube Protective cover, 4-pull drive assembly, 41-movable grip, 42-club body, 43-push tube structure, 431-sleeve push plate, 432-club mounting plate, 433-limit plate, 44-movable conductive sleeve, 5-water and electricity joint control assembly, 51-control button, 52-rotating transmission structure, 521-top pressure boss, 522-arc avoidance structure, 53-reset spring, 54-circuit control board, 55-waterway control lever, 551-top pressure part, 6-knob, 7-water supply assembly, 71-water supply hose, 72-liquid stop valve body, 73-water outlet connector, 74-water inlet connector, 8-power supply assembly, 801-fixed conductive sleeve. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "having," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] like Figures 1 to 8 As shown, this embodiment provides a hydroelectricity-cooperative bipolar electrocoagulation instrument, comprising a handle portion 1, a shaft portion 3, and a clamp head portion 2, wherein the clamp head portion 2 is disposed at one end of the shaft portion 3 away from the handle portion 1, wherein: The handle 1 is provided with a pulling drive assembly 4 for controlling the opening and closing state of the clamp head 2 and a water and electricity joint control assembly 5 for controlling the water and electricity on and off of the clamp head 2; The water circuit and the electric circuit of the clamp head 2 are in a simultaneous open state or a simultaneous disconnect state through the water-electricity joint control component 5; When the clamp head 2 is in the open state, the water-electricity joint control component 5 is restricted by the pulling drive component 4 so that the water circuit and the electric circuit of the clamp head 2 are in a normally disconnected state.

[0034] This embodiment provides a water-electricity joint control assembly 5 in the handle portion 1, so that the user can realize that the water circuit and the electric circuit of the forceps head 2 are simultaneously turned on or off through a single action, realizing the technical ingenuity of dripping water during electrocoagulation and not dripping water when not electrocoagulating, thereby effectively solving the problem of poor water-electricity coordination of existing bipolar electrocoagulation instruments.

[0035] In addition, when the clamp head 2 of this embodiment is in the open state, the pulling drive component 4 can play a linkage limiting role on the water-electricity control component 5, preventing the water-electricity control component 5 from triggering the water circuit and circuit of the clamp head 2 to change from the disconnected state to the open state, thereby playing a safety role when the clamp head 2 is in the open state, preventing the water circuit and circuit of the clamp head 2 from being connected, thereby reducing the risk of misoperation by the operator, avoiding electrocoagulation of non-lesional tissue, and increasing the safety of the operation.

[0036] In this embodiment, the water and electricity joint control assembly 5 includes a control button 51, a rotary transmission structure 52, a return spring 53, a circuit control board 54 and a waterway control lever 55; The rotary transmission structure 52 is rotatably connected to the handle portion 1. The rotary transmission structure 52 and the rotation axis are divided into a power input section and a power output section. The control button 51 is arranged on the handle portion 1 and is arranged toward the power input section of the transmission structure. One end of the return spring 53 is connected to the handle portion 1, and the other end is connected to the power output section of the rotary transmission structure 52. The control switch of the circuit control board 54 and the power input end of the waterway control rod 55 are both arranged toward the power output section of the rotary transmission structure 52.

[0037] After the traction drive assembly 4 drives the forceps head 2 to the closed state, the traction drive assembly 4 releases the restriction on the water and electricity control assembly 5. At this time, pressing the control button 51 can drive the rotary transmission structure 52 to rotate within the handle portion 1. After the rotary transmission structure 52 rotates, it can press the control switch on the circuit control board 54, opening the circuit. At the same time, the waterway control rod 55 is no longer pressed by the rotary transmission structure 52, making the waterway connected. After the waterway is connected, physiological saline enters the forceps head 2 through the waterway, thereby completing the circuit, completing the circuit between the fixed jaw 21 and the movable jaw 22 of the forceps head 2, and completing the electrocoagulation operation. This embodiment also utilizes the conductive properties of physiological saline to control the on and off of the circuit. When the physiological saline is not in place during the initial electrocoagulation, the circuit is physically blocked, eliminating the possibility of the circuit being connected when the waterway is blocked, providing reliable safety for the operator's operation. After the control button 51 of the water-electricity integrated control assembly 5 is released, the rotary transmission structure 52 rotates and resets under the action of the reset spring 53. At this time, the control switch of the circuit control board 54 is no longer under pressure. At the same time, the waterway control lever 55, after being pressed, disconnects the waterway. Due to the control switch, even if conductive saline remains in the waterway, the circuit is prevented from being connected. Therefore, the water-electricity coordinated design of the water-electricity integrated control assembly 5 in this embodiment can ensure that the waterway and circuit are connected or disconnected at the same time, ensuring that water drips during electrocoagulation and does not drip when electrocoagulation is not in progress.

[0038] In this embodiment, the shape of the rotary transmission structure 52 is Z-shaped; A pressing boss 521 is provided on the power output section of the rotary transmission structure 52 to facilitate pressing the control switch on the circuit control board 54; When the control button 51 is pressed, the pressing boss 521 presses against the control switch of the circuit control board 54, and the circuit is connected. At the same time, the power output section of the rotary transmission structure 52 and the waterway control rod 55 are separated from each other, and the waterway is connected. Inside the handle part 1, there is a baffle 121 disposed opposite to the end of the waterway control rod 55 away from the rotary transmission structure 52. The waterway is located between the waterway control rod 55 and the baffle 121. Moreover, at the end of the waterway control rod 55 facing the baffle 121, there is a pressing part 551 in an L shape or a U shape. The pressing part 551 cooperates with the baffle 121 inside the handle part 1, so that when the pressing part 551 approaches the baffle 121, it can ensure that the waterway is cut off. In this embodiment, the waterway between the waterway control rod 55 and the baffle 121 is a water supply hose 71. After the waterway control rod 55 is pressed and moved by the rotary transmission structure 52, the waterway control rod 55 can drive the water supply hose 71 to deform, thereby truncating the waterway.

[0039] In this embodiment, on the power output section of the rotary transmission structure 52, there is an arc-shaped avoidance structure 522 for avoiding the rod body part 3 extending into the handle part 1, so as to avoid the problem of mutual interference between the rotary transmission structure 52 and the rod body part 3 extending into the handle part 1 during rotation.

[0040] In this embodiment, the clamping head part 2 includes a clamping plate mounting end 23, a fixed clamping plate 21 and a movable clamping plate 22. The rod body part 3 includes a movable tube assembly 31 and a fixed tube assembly 32 with ends extending into the handle part 1. The fixed clamping plate 21 is fixed on the clamping plate mounting end 23. The movable clamping plate 22 is rotatably connected to the clamping plate mounting end 23. Moreover, the movable tube assembly 31 is fixedly connected to the movable clamping plate 22, and the fixed tube assembly 32 is fixedly connected to the fixed clamping plate 21. The switching of the opening and closing state of the clamping head part 2 is realized by the pulling drive assembly 4 driving the movable tube assembly 31 to pull the movable clamping plate 22 to rotate on the clamping plate mounting end 23.

[0041] In this embodiment, the clamping plate mounting end 23 further has an end connection section 233. The rod body part 3 includes an outer sheath tube 30. The end of the outer sheath tube 30 away from the handle part 1 is sleeved and fixed on the end connection section 233 of the clamping plate mounting end 23. In this embodiment, the handle part 1 includes a mounting part 12 and a fixed grip 11. Both the pulling drive assembly 4 and the water and electricity joint control assembly 5 are disposed inside the mounting part 12. The pulling drive assembly 4 includes a movable grip 41 rotatably connected to the mounting part 12, as well as a ball rod main body 42, a push tube structure 43 and a movable conductive sleeve 44. One end of the ball rod main body 42 is fixed to the movable grip 41, and the other end is movably connected inside the push tube structure 43. The push tube structure 43 is disposed inside the mounting part 12 and can be slidably connected to the mounting part 12 along the axial direction of the rod body part 3. The push tube structure 43 is fixedly connected to the movable conductive sleeve 44. The movable conductive sleeve 44 is sleeved on the movable tube assembly 31 and fixedly connected to it.

[0042] In this embodiment, a power supply assembly 8 is also included, which includes two power supply terminals (not shown in the figure) and a fixed conductive sleeve 801. The fixed conductive sleeve 801 is connected to the liquid flow channel inside the fixed tube body 321 of the fixed tube assembly 32, so that current can enter the solid pipe through the fixed conductive sleeve 801, and then conduct electricity through the physiological saline in the liquid flow channel to the fixed clamp 21, thereby forming a current loop with the interactive clamp.

[0043] The fixed tube assembly 32 in this embodiment further includes a fixed tube protective cover 322 sleeved on the fixed tube body 321 .

[0044] In this embodiment, the push tube structure 43 includes a fixedly connected sleeve push plate 431, a club mounting plate 432 and a limit plate 433; The club mounting plate 432 is arranged parallel to the axis of the movable conductive sleeve 44, and the club body 42 is movably connected to the club mounting plate 432; The sleeve push plate 431 is arranged perpendicular to the club mounting plate 432 and the movable conductive sleeve 44. The movable conductive sleeve 44 is provided with a limiting ring groove, and the sleeve push plate 431 is sleeved in the limiting ring groove. The movable conductive sleeve 44 can rotate freely in the sleeve push plate 431, so that the sleeve push plate 431 can only drive the movable conductive sleeve 44 to move back and forth along its axial direction. When the movable conductive sleeve 44 rotates synchronously with the shaft portion 3, it will not affect the sleeve push plate 431. The end of the limiting plate 433 away from the club mounting plate 432 is arranged toward and close to the power output end of the water-electricity joint control component 5.

[0045] In this embodiment, the limit plate 433 is fixed on the club mounting plate 432 at an angle, so that the inclined state of the limit plate 433 can be used to avoid the turning part of the rotating transmission structure 52, so that the end of the limit plate 433 is close to the power input section of the rotating transmission structure 52, saving space and improving the compactness of the handle part 1. In some embodiments, the shape of the limit plate 433 can also be replaced with an L-shape or other shapes, which will not be repeated here.

[0046] In this embodiment, a plurality of first jaw teeth 211 and a second jaw teeth 221 are respectively provided on opposite sides of the fixed jaw plate 21 and the movable jaw plate 22; The fixed clamp plate 21 is also provided with a U-shaped flow channel 212 and a drain port 213 located in the U-shaped flow channel 212. The drain port 213 is connected to the interior of the fixed pipe assembly 32. In this embodiment, a U-shaped flow channel 212 that is adapted to its shape is designed on the fixed clamp plate 21, and a plurality of first clamp teeth 211 and second clamp teeth 221 are respectively provided on the fixed clamp plate 21 and the movable clamp plate 22. This can make tissue damage during the electrocoagulation process more uniform and stable, reduce and minimize scabbing and adhesion during the electrocoagulation process, reduce the active area, and increase surgical safety.

[0047] The U-shaped flow channel 212 in this embodiment can also be replaced by an N-shaped, V-shaped, S-shaped flow channel. The specific shape design technicians can set it according to their needs, and no further examples will be given here.

[0048] In this embodiment, the clamp mounting end 23 is provided with a through hole 231 and a mounting shaft column 232 located in the through hole 231; The movable nipper 22 further includes a rotating arc plate segment 222 , and the movable nipper 22 is rotatably connected to the mounting shaft column 232 of the nipper mounting end 23 via the rotating arc plate segment 222 ; The movable tube assembly 31 includes a conductive pulling rod 311 , and one end of the conductive pulling rod 311 away from the clamp head 2 is conductively connected to the movable conductive sleeve 44 ; The pliers head 2 further includes a conductive connecting plate 24 , one end of which is electrically and fixedly connected to the conductive pulling rod 311 , and the other end of which is electrically and fixedly connected to the rotating arc plate segment 222 of the movable pliers plate 22 ; The fixed pipe assembly 32 includes a fixed pipe body 321 having a liquid flow channel therein. The liquid flow channel in the fixed pipe body 321 is connected to the drain port 213 on the fixed clamp plate 21. It also includes a water supply component 7, and the water outlet end of the water supply component 7 is connected to the fixed pipe body 321.

[0049] In this embodiment, the movable tube assembly 31 also includes a pulling rod protective cover 312 that is sleeved and fixed on the conductive pulling rod 311, and a pulling tube 313 that is sleeved on the pulling rod protective cover 312. In this embodiment, the movable tube assembly 31 and the fixed tube assembly 32 are both located inside the outer sheath 30 of the shaft portion 3.

[0050] In this embodiment, the water supply assembly 7 also includes a liquid-stop valve body 72 and a water outlet connector 73 disposed within the handle portion 1, as well as a water inlet connector 74 connected to the water supply hose 71. The fixed tube body 321 of the fixed tube assembly 32 is in communication with the water outlet connector 73, and the liquid-stop valve body 72 is located between the water outlet connector 73 and the water supply hose 71. The liquid-stop valve body 72 is located within the handle portion 1 and is fixed relative to the handle portion 1. The liquid-stop valve body 72 has at least two channel structures, one of which is connected to the water supply hose 71, and the other channel has a hole-shaped or hollow structure, the axis of which coincides with the axis of the fixed tube body 321 of the shaft portion 3. The liquid-stop valve body 72 is provided with an elastic material and is sealed with the fixed tube body 321, so that even when the shaft portion 3 rotates around its own axis, saline solution will not leak from the joint.

[0051] In this embodiment, the shaft portion 3 is also fitted with a knob 6 for driving the shaft portion 3 and the pliers head portion 2 to rotate freely along the central axis of the shaft portion 3, and the knob 6 is rotatably connected to the handle portion 1. In this embodiment, by fitting the knob 6 on the shaft portion 3, the pliers head can be rotated at any angle along the shaft while meeting the precise dripping function, thereby increasing surgical flexibility and facilitating the operator's operation. In addition, its compact structure makes the shaft size smaller, which is more conducive to laparoscopic surgical operations.

[0052] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will be able to make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A hydroelectric bipolar coagulation device, characterized in that: The invention comprises a handle portion (1), a shaft portion (3) and a pliers head portion (2), wherein the pliers head portion (2) is arranged at an end of the shaft portion (3) away from the handle portion (1), wherein: The handle portion (1) is provided with a pulling drive component (4) for controlling the opening and closing state of the clamp head portion (2) and a water and electricity joint control component (5) for controlling the water and electricity on and off of the clamp head portion (2); The water circuit and the electric circuit of the clamp head (2) are in a simultaneous connected state or a simultaneous disconnected state through the water-electricity joint control component (5); When the clamp head (2) is in an open state, the water-electricity joint control component (5) is restricted by the pulling drive component (4) so ​​that the water circuit and the electric circuit of the clamp head (2) are in a normally disconnected state.

2. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 1, characterized in that: The water-electricity joint control assembly (5) includes a control button (51), a rotary transmission structure (52), a return spring (53), a circuit control board (54) and a waterway control lever (55); The rotary transmission structure (52) is rotatably connected to the handle portion (1). The rotary transmission structure (52) and the rotation axis are divided into a power input section and a power output section. The control button (51) is provided on the handle portion (1) and is arranged toward the power input section of the transmission structure. One end of the return spring (53) is connected to the handle portion (1), and the other end is connected to the power output section of the rotary transmission structure (52). The control switch of the circuit control board (54) and the power input end of the waterway control rod (55) are both arranged toward the power output section of the rotary transmission structure (52).

3. The hydroelectricity-cooperative bipolar electrocoagulation device according to claim 2, characterized in that: The shape of the rotary transmission structure (52) is Z-shaped; A top-pressing boss (521) is provided on the power output section of the rotary transmission structure (52); When the control button (51) is in a pressed state, the pressing boss (521) presses against the control switch of the circuit control board (54), and the circuit is connected. At the same time, the power output section of the rotary transmission structure (52) and the waterway control rod (55) are separated from each other, and the waterway is connected. A baffle (121) is provided in the handle portion (1) and is arranged opposite to an end of the waterway control rod (55) away from the rotary transmission structure (52), and the waterway is located between the waterway control rod (55) and the baffle (121).

4. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 3, characterized in that: The power output section of the rotary transmission structure (52) is provided with an arc-shaped avoidance structure (522) for avoiding the shaft portion (3) extending into the handle portion (1).

5. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 1, characterized in that: The pliers head portion (2) includes a pliers plate mounting end (23), a fixed pliers plate (21) and a movable pliers plate (22); the shaft portion (3) includes a movable tube assembly (31) and a fixed tube assembly (32) whose ends extend into the handle portion (1); The fixed clamp plate (21) is fixed to the clamp plate mounting end (23), the movable clamp plate (22) is rotatably connected to the clamp plate mounting end (23), the movable pipe assembly (31) is fixedly connected to the movable clamp plate (22), and the fixed pipe assembly (32) is fixedly connected to the fixed clamp plate (21); The opening and closing states of the clamp head (2) are switched by pulling the driving assembly (4) to drive the movable tube assembly (31) to pull the movable clamp plate (22) to rotate on the clamp plate mounting end (23).

6. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 5, characterized in that: The handle portion (1) comprises a mounting portion (12) and a fixed grip (11); The pulling drive assembly (4) and the water-electricity joint control assembly (5) are both arranged in the installation portion (12); The pulling drive assembly (4) includes a movable grip (41) rotatably connected to the mounting portion (12), a club body (42), a push tube structure (43) and a movable conductive sleeve (44); One end of the club body (42) is fixed to the movable grip (41), and the other end is movably connected to the push tube structure (43). The push tube structure (43) is arranged in the mounting portion (12) and can be slidably connected to the mounting portion (12) along the axial direction of the shaft portion (3). The push tube structure (43) is fixedly connected to the movable conductive sleeve (44), and the movable conductive sleeve (44) is sleeved on the movable tube assembly (31) and fixedly connected thereto.

7. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 6, characterized in that: The push tube structure (43) comprises a fixedly connected sleeve push plate (431), a club mounting plate (432) and a limit plate (433); The club mounting plate (432) is arranged parallel to the axis of the movable conductive sleeve (44), and the club body (42) is movably connected to the club mounting plate (432); The sleeve push plate (431) is arranged perpendicular to the club mounting plate (432) and the movable conductive sleeve (44), and a limiting ring groove is provided on the movable conductive sleeve (44). The sleeve push plate (431) is sleeved in the limiting ring groove, and the movable conductive sleeve (44) can rotate freely in the sleeve push plate (431); The end of the limiting plate (433) away from the club mounting plate (432) is arranged toward and close to the power output end of the water-electricity joint control component (5).

8. The hydroelectricity-synergistic bipolar electrocoagulation device according to claim 6, characterized in that: A plurality of first jaw teeth (211) and a plurality of second jaw teeth (221) are respectively provided on opposite sides of the fixed jaw plate (21) and the movable jaw plate (22); The fixed clamp plate (21) is further provided with a U-shaped flow channel (212) and a drainage port (213) located in the U-shaped flow channel (212), and the drainage port (213) is communicated with the interior of the fixed pipe assembly (32).

9. The hydroelectricity-synergistic bipolar electrocoagulation device according to claim 8, characterized in that: The clamp plate mounting end (23) is provided with a through hole (231) and a mounting shaft column (232) located in the through hole (231); The movable pliers (22) further comprises a rotating arc plate segment (222), and the movable pliers (22) is rotatably connected to the mounting shaft column (232) of the pliers mounting end (23) via the rotating arc plate segment (222); The movable tube assembly (31) includes a conductive pulling rod (311), and one end of the conductive pulling rod (311) away from the clamp head (2) is conductively connected to the movable conductive sleeve (44); The clamp head (2) further includes a conductive connecting plate (24), one end of which is conductively and fixedly connected to the conductive pulling rod (311), and the other end of which is conductively and fixedly connected to the rotating arc plate segment (222) of the movable clamp plate (22); The fixed pipe assembly (32) comprises a fixed pipe body (321) having a liquid flow channel therein, and the liquid flow channel in the fixed pipe body (321) is in communication with a drain port (213) on the fixed clamp plate (21); It also includes a water supply component (7), the water outlet end of the water supply component (7) is in communication with the fixed pipe body (321).

10. The hydroelectricity-coordinated bipolar electrocoagulation device according to claim 1, characterized in that: The shaft portion (3) is also fitted with a knob (6) for driving the shaft portion (3) and the clamp head portion (2) to freely rotate along the central axis of the shaft portion (3). The knob (6) is rotatably connected to the handle portion (1).

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