End effector and electrosurgical instrument for electrosurgery

Abstract

The application discloses an end effector and an electrosurgical instrument for electrosurgery, and the end effector comprises at least one movable clamp, the movable clamp comprises a sealing electrode and a connecting piece, the sealing electrode is fixedly connected with the connecting piece, the connecting piece is pivotally connected with a base through a pivot shaft, the connecting piece is provided with a cam groove, the base is provided with a waist-shaped groove, and one transmission pin passes through the cam groove and the waist-shaped groove at the same time; when the transmission pin moves along the direction of the waist-shaped groove, the movable clamp is driven to rotate around the pivot shaft; the connecting piece is configured as an insulating component; and the sealing electrode is separated from the base through the connecting piece so that there is no contact point between the sealing electrode and the base. According to the application, the movable clamp is arranged in a split structure, i.e., in a two-part structure; the insulating structure connects the conductive structure with other metal structures of a wrist mechanism such as the base and can isolate the conductive structure from the metal structures, maintains a certain physical distance and has no contact point, so that the installation and insulation of the sealing electrode are realized.

Description

Technical Field

[0001] This application relates to the technical field of surgical instruments, and more specifically to an end effector and an electrosurgical instrument for electrosurgery. Background Technology

[0002] Existing electrosurgical instruments, such as vascular sealers, typically feature a movable forceps. The movable forceps are pivotally connected to a base via a pivot. The forceps also have a sealing electrode. Driving force is rigidly transmitted from a cam groove of the sealing electrode to its sealing surface, which is usually connected to the drive mechanism / cam groove. The sealing electrode must be conductive, necessitating insulation during installation. Current insulation methods involve applying an insulating coating to the cam groove. This insulation method does not significantly ensure instrument safety, limiting the number of times the instrument can be used. Summary of the Invention

[0003] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] To at least partially address the aforementioned problems, this application provides an end effector for electrosurgical procedures, comprising at least one movable clamp, the movable clamp including a sealing electrode and a connector, the sealing electrode being fixedly connected to the connector, the connector being pivotally connected to a base via a pivot shaft, and...

[0005] The connector has a cam groove, and the base has a waist-shaped groove. A drive pin passes through both the cam groove and the waist-shaped groove. When the drive pin moves along the direction of the waist-shaped groove, it drives the movable clamp to rotate around the pivot axis.

[0006] The connector is constructed as an insulating component, and the sealing electrode is separated from the base through the connector so that there is no contact point between the two.

[0007] According to this design, the movable clamp is configured as a split structure, consisting of two parts: a conductive structure corresponding to the sealing electrode and an insulating structure corresponding to the connector. The insulating structure connects the conductive structure to the base and other metal structures of the wrist mechanism, while also isolating the conductive structure from these metal structures, maintaining a certain physical distance and eliminating contact points, thus achieving insulation for the sealing electrode installation. This design avoids the need for an insulating coating, greatly ensuring the safety of the device and extending its service life. The larger size and area of ​​the insulating structure maximize the spatial distance between the sealing electrode and other metal structures of the wrist mechanism, reducing the risk of leakage and short circuits.

[0008] Optionally, the connector has a first hole, the pivot shaft passes through the first hole, a sleeve is formed on the outer ring of the first hole, the sealing electrode includes a connecting part, the connecting part has a second hole, and the sleeve passes through the second hole.

[0009] According to this solution, by setting a sleeve on the connector, the sealing electrode can be easily insulated and isolated from the pivot shaft at the pivot position, resulting in good insulation. Furthermore, the sealing electrode at the pivot position has a better reinforcing structure with the connector, which can maintain the rigidity of the connector.

[0010] Optionally, the second hole is circular, square, or irregular in shape, and the outer periphery of the sleeve is adapted to the shape of the second hole.

[0011] According to this solution, the strength of the reinforcing structure between the sealing electrode and the connector can be improved, so that the two can maintain a stable and reliable connection.

[0012] Optionally, the connector has a mounting portion that is adapted to at least a portion of the outer contour of the connecting part, and the connecting part is mounted in the mounting portion.

[0013] According to this solution, the shape-adaptive mounting part can restrict the rotation of the sealing electrode relative to the connector, so that the rotation of the two around the pivot axis is synchronized, which can further improve the strength of the reinforcing structure between the sealing electrode and the connector, and make the two maintain a more stable and reliable connection.

[0014] Optionally, the mounting portion has a limiting opening and forms a limiting groove with the sleeve, and the connecting portion of the sealing electrode is located within the limiting opening and the limiting groove and at least abuts against the wall surface forming the limiting opening.

[0015] According to this solution, the position of the sealing electrode can be limited by the limiting groove and the limiting opening, resulting in better installation stability. The structure of the mounting part is simple and convenient for manufacturing.

[0016] Optionally, the movable clamp further includes an isolator that covers the side of the connecting portion opposite to the connecting member, and the isolator and the connecting member cover the connecting portion.

[0017] According to this solution, the connecting part is covered, which isolates the sealing electrode from the base and other metal structures in the axial direction, thereby achieving axial installation insulation and further improving the insulation effect.

[0018] Optionally, the coverage area of ​​the isolation element is greater than the side area of ​​the connecting portion.

[0019] According to this solution, the insulating component has a larger size than the connecting part, further preventing the sealing electrode from contacting other metals such as the base, thus achieving a better insulation effect.

[0020] Optionally, the connector has a groove, which connects to the mounting portion.

[0021] According to this solution, wiring can be installed in the cable trays and mounting sections, which facilitates cable installation.

[0022] Optionally, the mounting portion is located on the side of the connector facing the base or on the side away from the base.

[0023] According to this solution, in the configuration facing the base, the jamming at the hinge position when using the two clamps can be reduced.

[0024] Optionally, the end effector includes two movable clamps, the cam grooves of the two movable clamps being symmetrically arranged with respect to the midline along the length direction of the waist-shaped groove.

[0025] According to this scheme, both movable forceps need to be operated simultaneously to perform various forms of electrosurgical procedures; the position of the transmission pin in the cam groove of the two movable forceps can be made to correspond, so that the opening and closing angles of the two movable forceps are the same, which facilitates operation.

[0026] Optionally, the base includes two support arms, the connectors of the two movable clamps are located between the two support arms, the connectors of the two movable clamps are hinged to the two support arms, and a drive pin passes through the cam grooves of the two connectors and the waist-shaped grooves of the two support arms.

[0027] According to this solution, the installation of the two movable clamps is more stable and reliable, and the installation structure facilitates the transmission of driving force, making it easy to open and close the two movable clamps.

[0028] Optionally, the end effector includes a fixed clamp and a movable clamp, wherein the fixed clamp is fixedly connected to the base or integrally formed therefrom.

[0029] According to this plan, this movable forceps needs to be manipulated to perform various forms of electrosurgical procedures.

[0030] Optionally, the end effector further includes a cutting electrode comprising a cutting component and a mounting base, the mounting base being fixedly connected to a sealing electrode of the movable clamp, at least a portion of the mounting base protruding from the sealing electrode, the cutting component being located within the mounting base and the cutting end of the cutting component slightly protruding from the mounting base, the mounting base being constructed as a ceramic component and / or a polyetheretherketone component.

[0031] According to this solution, compared with existing cutting electrodes that are over-molded with silicone, the cutting electrode of this solution has better heat preservation performance, can better retain heat, limit heat diffusion, prevent heat loss, and effectively avoid tissue damage.

[0032] Optionally, the sealing electrode is provided with a groove, the mounting base is located in the groove, and the portion of the mounting base located in the groove is provided with a plurality of fins at intervals.

[0033] According to this solution, the contact area between the cutting electrode and the sealing electrode can be reduced, thereby reducing heat loss.

[0034] According to another aspect of this application, an electrosurgical instrument is provided, comprising a base and an end effector for electrosurgical procedures according to any of the preceding aspects, the end effector being pivotally connected to the base via a pivot axis. Attached Figure Description

[0035] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0036] In the attached image:

[0037] Figure 1 A perspective view of an electrosurgical instrument including an end effector according to a preferred embodiment of the present application;

[0038] Figure 2 for Figure 1 Another perspective view of the electrosurgical instruments shown, with the base removed;

[0039] Figure 3 for Figure 1 A perspective view of the first movable clamp shown;

[0040] Figure 4 for Figure 1 An exploded perspective view of the first movable clamp shown in the figure;

[0041] Figure 5 for Figure 1 An exploded perspective view of the second movable clamp shown in the figure;

[0042] Figure 6 for Figure 1 An exploded perspective view of another embodiment of the second movable clamp shown;

[0043] Figure 7 for Figure 1 A three-dimensional view of the cut electrode shown;

[0044] Figure 8 for Figure 1 Another perspective view of the cut electrode shown.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Electrosurgical instruments 2. End effector

[0047] 10 movable clamps 10a First movable clamps

[0048] 10b Second movable clamp 11 Sealed electrode

[0049] 12 Connectors 13 Sleeves

[0050] 14 Installation part 15 Limiting opening

[0051] 16 Limiting groove 17 Connecting part

[0052] 18 grooves 30 base

[0053] 31 arms, 33 waist-shaped grooves

[0054] 41 Pivot shaft 42 Isolator

[0055] 43 First hole 44 Transmission pin

[0056] 45 Cam groove 46 Second hole

[0057] 47 Third hole 48 Cable groove

[0058] 50 Cutting electrode 51 Cutting component

[0059] 52 Mounting base 53 Mounting base

[0060] 54 installation boss 55 concave part Detailed Implementation

[0061] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0062] To fully understand this application, a detailed description will be provided below. It is obvious that the implementation of embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may also be available in addition to these detailed descriptions.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0064] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0065] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0066] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0067] See Figures 1 to 8 This application provides an end effector 2 for electrosurgical procedures. The end effector 2 can be used with an electrosurgical instrument 1, such as a vascular sealer or any suitable instrument. The end effector 2 is used to perform electrosurgical procedures such as cutting, shearing, grasping, clamping, holding, and joining. The vascular sealer can be used in remote electrosurgical procedures such as cauterization, autolysis, drying, tissue cutting, vascular cutting, and vascular closure.

[0068] like Figure 1 and Figure 2As shown, the electrosurgical instrument 1 includes a base 30 and the aforementioned end effector 2. The end effector 2 is pivotally connected to the base 30 via a pivot axis 41. The base 30 is typically a metal component. The end effector 2 may include at least one movable clamp 10. The illustrated embodiment shows two movable clamps 10, namely a first movable clamp 10a and a second movable clamp 10b, which cooperate in rotating about the pivot axis 41 to open and close. This approach requires simultaneous manipulation of both movable clamps 10 to perform various forms of electrosurgical procedures. This document describes the two movable clamps 10 as an example in the illustrated embodiment.

[0069] Of course, in other embodiments not shown, the end effector 2 can have various structural forms. For example, the end effector 2 may include a fixed clamp and a movable clamp 10, with the fixed clamp fixedly connected to or integrally formed with the base 30. The movable clamp 10 is movable relative to the fixed clamp, specifically rotating independently about a pivot axis 41. This design requires manipulation of this movable clamp 10 to perform various forms of electrosurgical procedures.

[0070] In the embodiment of the two movable clamps 10, the cam grooves 45 of the two movable clamps 10 are symmetrically arranged with respect to the centerline of the waist-shaped groove 33 in the length direction. This allows the transmission pin 44 to move in corresponding positions within the cam grooves 45 of the two movable clamps 10, ensuring that the opening and closing angles of the two movable clamps 10 are the same, facilitating operation.

[0071] The base 30 may include two support arms 31. Connectors 12 of the two movable clamps 10 are located between the two support arms 31, and are hinged to both support arms 31. Specifically, the two support arms 31 and the connectors 12 of the two movable clamps 10 are connected together via a pivot shaft 41. A drive pin 44 passes through both the cam grooves 45 of the two connectors 12 and the waist-shaped grooves 33 of the two support arms 31.

[0072] The movable clamp 10 may include a sealing electrode 11 and a connector 12. The sealing electrode 11 is located at the distal end of the connector 12 and can be fixedly connected to the connector 12. The connector 12 is pivotally connected to the base 30 via a pivot shaft 41. The connector 12 has a cam groove 45, and the base 30 has a waist-shaped groove 33. A drive pin 44 passes through both the cam groove 45 and the waist-shaped groove 33. A drive mechanism can be connected to the drive pin 44 to drive the drive pin 44 to move along the direction of the waist-shaped groove 33. When the drive pin 44 moves along the direction of the waist-shaped groove 33, it also moves at different positions in the cam groove 45. The cam groove 45 has a curved surface structure, so that the drive pin 44 drives the movable clamp 10 to rotate around the pivot shaft 41.

[0073] The connector 12 is constructed as an insulating component and can be made of any suitable insulating material. The sealing electrode 11 is separated from the base 30 by the connector 12 to ensure no contact between them. Whether rotating or stationary, the sealing electrode 11 maintains a physical distance from the base 30, remaining in a non-contact state. This design sets the movable clamp 10 as a split structure, consisting of two parts: a conductive structure corresponding to the sealing electrode 11 and an insulating structure corresponding to the connector 12. The insulating structure connects the conductive structure to the base 30 and other metal structures of the wrist mechanism, while isolating the conductive structure from these metal structures, maintaining a certain physical distance and eliminating contact points, thus achieving insulation for the installation of the sealing electrode 11. This design avoids the need for an insulating coating, greatly ensuring the safety of the device and extending its service life. The larger size and area of ​​the insulating structure maximize the spatial distance between the sealing electrode 11 and other metal structures of the wrist mechanism, reducing the risk of leakage and short circuits.

[0074] like Figures 3 to 6 As shown, the connector 12 has a first hole 43. The first hole 43 is located at the distal end of the cam groove 45. The first hole 43 is circular, and the pivot shaft 41 is cylindrical and can pass through the first hole 43. In order to connect the sealing electrode 11 to the connector 12, a sleeve 13 can be formed on the outer ring of the first hole 43. The pivot shaft 41 passes through the sleeve 13, and the inner hole of the sleeve 13 is circular to facilitate the adaptation of the pivot shaft 41. The sealing electrode 11 includes a connecting portion 17, which is located at one end of the sealing electrode 11. The connecting portion 17 has a second hole 46, and the sleeve 13 can pass through the second hole 46 to install the sealing electrode 11 outside the sleeve 13. By providing a sleeve 13 on the connector 12, the sealing electrode 11 can be easily insulated from the pivot shaft 41 at the pivot position, with good insulation effect, and the reinforcing structure of the sealing electrode 11 and the connector 12 at the pivot position is better, which can maintain the rigidity of the connector 12.

[0075] The second hole 46 can be circular, square, or irregular in shape; in other words, the second hole 46 can be any suitable shape. The outer periphery of the sleeve 13 is adapted to the shape of the second hole 46. The illustrated embodiment schematically shows the second hole 46 as circular and the sleeve 13 as cylindrical. This design can improve the strength of the reinforcing structure between the sealing electrode 11 and the connector 12, ensuring a stable and reliable connection between the two.

[0076] The connector 12 has a mounting portion 14 that is adapted to at least a portion of the outer contour of the connecting portion 17. The connecting portion 17 is mounted within the mounting portion 14. The shape-adapted mounting portion 14 can restrict the rotation of the sealing electrode 11 relative to the connector 12, synchronizing the rotation of both about the pivot axis 41, further improving the strength of the reinforcing structure between the sealing electrode 11 and the connector 12, and maintaining a more stable and reliable connection. The mounting portion 14 may have a limiting opening 15 and form a limiting groove 16 between it and the sleeve 13. The connecting portion 17 of the sealing electrode 11 is located within the limiting groove 16 and the limiting opening 15 and abuts against at least the wall surface forming the limiting opening 15. The connecting portion 17 may abut against both the wall surface forming the limiting groove 16 and the wall surface forming the limiting opening 15.

[0077] like Figure 4 and Figure 5 As shown, the movable clamp 10 may also include an isolator 42. The isolator 42 covers the side of the connecting portion 17 opposite to the connecting member 12, and the isolator 42 and the connecting member 12 together enclose the connecting portion 17 of the sealing electrode 11. Specifically, one axial side of the connecting portion 17 is covered by the connecting member 12, and the other axial side of the connecting portion 17 is covered by the isolator 42, thus enclosing the connecting portion 17 and isolating the sealing electrode 11 from other metal structures such as the base 30 in the axial direction, achieving axial installation insulation and further improving the insulation effect. The coverage area of ​​the isolator 42 can be larger than the side area of ​​the connecting portion 17. The isolator 42 has a larger size than the connecting portion 17, further preventing the sealing electrode 11 from contacting other metals such as the base 30, achieving a better insulation effect.

[0078] The spacer 42 has a third hole 47 through which the sleeve 13 can pass, allowing the spacer 42 to be installed outside the sleeve 13. The third hole 47 can be circular, square, or irregular in shape; in other words, the third hole 47 can be any suitable shape. The outer periphery of the sleeve 13 is adapted to the shape of the third hole 47. The illustrated embodiment schematically shows that the third hole 47 is also circular. The spacer 42 is installed within the mounting portion 14, specifically within the limiting groove 16 and the limiting opening 15, and can abut against the wall surface forming the limiting groove 16 and the wall surface forming the limiting opening 15.

[0079] The mounting part 14 is located on the side of the connector 12 facing the base 30 or on the side away from the base 30. Figures 1 to 5 The embodiment shown schematically illustrates that the mounting part 14 is located on the side of the connector 12 away from the base 30. Figure 6 The illustrated embodiment schematically shows that the mounting part 14 is located on the side of the connector 12 facing the base 30, which can reduce the possibility of jamming at the hinge position when the two clamps are used; in this embodiment, the isolator 42 is provided between the base 30 and the sealing electrode 11 for installation insulation.

[0080] See Figure 6 The connector 12 may have a wire groove 48, which connects to the mounting part 14, specifically to the limiting groove 16 formed by the mounting part 14 and the sleeve 13. Wiring can be done within the wire groove 48 and the mounting part 14, facilitating wire installation.

[0081] like Figure 7 and Figure 8 As shown, the end effector 2 may further include a cutting electrode 50. The cutting electrode 50 includes a cutting component 51 and a mounting base 52. The mounting base 52 is fixedly connected to a sealing electrode 11 of a movable clamp 10, specifically mounted to the second movable clamp 10b in the illustrated embodiment. At least a portion of the mounting base 52 protrudes from the sealing electrode 11, the cutting component 51 is located within the mounting base 52, and the cutting end of the cutting component 51 slightly protrudes from the mounting base 52. The sealing electrode 11 is provided with a groove 18, and the mounting base 52 is located within the groove 18.

[0082] Thermal diffusion of the cutting electrode is also a problem that needs to be addressed, as excessive heat dissipation from the instrument tip into the surrounding tissue can cause tissue damage. Existing cutting electrodes are made with silicone overmolded material, which allows heat to easily pass through the silicone from the cutting electrode to the sealing electrode. This results in the tissue conducting this heat very easily. This application improves the material of the mounting base 52 by constructing it as a ceramic component and / or a polyetheretherketone (PEEK) component. Compared to existing silicone overmolded cutting electrodes, the cutting electrode 50 of this solution has better thermal insulation properties, effectively retaining heat, limiting thermal diffusion, preventing heat loss, and effectively avoiding tissue damage.

[0083] Mounting base 52 may include a mounting base 53 and a mounting boss 54. The mounting base 53 is mountable into a recess 18, and its cross-sectional shape is adapted to the cross-sectional shape of the recess 18. The mounting boss 54 protrudes from the mounting base 53 and has any suitable tapering shape, such as a trapezoid or triangle. Mounting base 52 also has a recess 55. The recess 55 extends from the mounting base 53 to the mounting boss 54 and has an opening at the mounting boss 54. The cutting member 51 is placed within the recess 55 through this opening.

[0084] Optionally, the portion of the mounting base 52 located within the groove 18 may be provided with multiple fins at intervals. The fins reduce the contact area between the cutting electrode 50 and the sealing electrode 11, thereby reducing heat loss.

[0085] The end effector 2 for electrosurgical procedures provided in this application features a split structure for the movable clamp 10, consisting of two parts: a conductive structure corresponding to the sealed electrode 11 and an insulating structure corresponding to the connector 12. The insulating structure connects the conductive structure to other metal structures of the wrist mechanism, such as the base 30, while also isolating the conductive structure from these metal structures, maintaining a certain physical distance and eliminating contact points, thus achieving insulation for the installation of the sealed electrode 11. This design avoids the need for an insulating coating, significantly ensuring the safety of the instrument and extending its service life. The larger size and area of ​​the insulating structure maximize the spatial distance between the sealed electrode 11 and other metal structures of the wrist mechanism, reducing the risk of leakage and short circuits.

[0086] The order of steps in this embodiment can be adjusted, combined, or deleted according to actual needs.

[0087] The processes described in all the preferred embodiments above are merely examples. Unless adverse effects occur, various processing operations can be performed in a different order than those described above. The order of steps in the above processes can also be added, combined, or deleted as needed.

[0088] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0089] This application has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This application is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. An end effector for electrosurgical procedures, characterized in that, It includes at least one movable clamp and a cutting electrode. The movable clamp includes a sealing electrode and a connector. The sealing electrode is fixedly connected to the connector, and the connector is pivotally connected to a base via a pivot shaft. The connector has a cam groove, and the base has a waist-shaped groove. A drive pin passes through both the cam groove and the waist-shaped groove. When the drive pin moves along the direction of the waist-shaped groove, it drives the movable clamp to rotate around the pivot axis. The connector is constructed as an insulating member, and the sealing electrode is separated from the base via the connector to eliminate any contact points between them; and The cutting electrode includes a cutting component and a mounting base. The mounting base is fixedly connected to a sealing electrode of the movable clamp, and at least a portion of the mounting base protrudes from the sealing electrode. The mounting base is constructed as a ceramic component and / or a polyetheretherketone (PEEK) component. The mounting base includes a mounting base and a mounting boss. The mounting base also has a recess extending from the mounting base to the mounting boss and having an opening at the mounting boss. The cutting component is placed within the recess via the opening, and the cutting end of the cutting component slightly protrudes from the mounting base.

2. The end effector for electrosurgical procedures according to claim 1, characterized in that, The connector has a first hole, the pivot shaft passes through the first hole, and a sleeve is formed on the outer ring of the first hole. The sealing electrode includes a connecting part, the connecting part has a second hole, and the sleeve passes through the second hole.

3. The end effector for electrosurgical procedures according to claim 2, characterized in that, The second hole is circular, square, or irregular in shape, and the outer periphery of the sleeve is adapted to the shape of the second hole.

4. The end effector for electrosurgical procedures according to claim 2, characterized in that, The connector has a mounting portion that is adapted to at least a portion of the outer contour of the connecting part, and the connecting part is installed in the mounting portion.

5. The end effector for electrosurgical procedures according to claim 4, characterized in that, The mounting portion has a limiting opening and forms a limiting groove with the sleeve. The connecting portion of the sealing electrode is located within the limiting opening and the limiting groove and at least abuts against the wall surface forming the limiting opening.

6. The end effector for electrosurgical procedures according to any one of claims 2 to 5, characterized in that, The movable clamp also includes an isolating member that covers the side of the connecting portion opposite to the connecting member, and the isolating member and the connecting member together cover the connecting portion.

7. The end effector for electrosurgical procedures according to claim 6, characterized in that, The coverage area of ​​the isolation component is greater than the lateral area of ​​the connecting portion.

8. The end effector for electrosurgical procedures according to claim 4, characterized in that, The connector has a groove, which connects to the mounting part.

9. The end effector for electrosurgical procedures according to claim 4, characterized in that, The mounting part is located on the side of the connector facing the base or on the side away from the base.

10. The end effector for electrosurgical procedures according to claim 1, characterized in that, The end effector includes two movable clamps, the cam grooves of which are symmetrically arranged with respect to the centerline along the length direction of the waist-shaped groove.

11. The end effector for electrosurgical procedures according to claim 10, characterized in that, The base includes two support arms, and the connectors of the two movable clamps are located between the two support arms. The connectors of the two movable clamps are hinged to the two support arms. A transmission pin passes through the cam grooves of the two connectors and the waist-shaped grooves of the two support arms.

12. The end effector for electrosurgical procedures according to claim 1, characterized in that, The end effector includes a fixed clamp and a movable clamp, wherein the fixed clamp is fixedly connected to the base or integrally formed therefrom.

13. The end effector for electrosurgical procedures according to claim 1, characterized in that, The sealing electrode is provided with a groove, the mounting base is located in the groove, and the portion of the mounting base located in the groove is provided with multiple fins at intervals.

14. An electrosurgical instrument, characterized in that, It includes a base and an end effector for electrosurgical procedures according to any one of claims 1 to 13, the end effector being pivotally connected to the base via a pivot axis.

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