Surgical electrode tip and surgical electrode operating device

Abstract

This utility model provides a surgical electrode tip and a surgical electrode operating device, relating to the technical field of medical devices. Due to the presence of the convex edge, when the electrode contacts the tissue, initial contact is only made through the raised edge, significantly reducing the actual contact area. Under the same power output conditions, the current density is significantly increased, thereby improving the thermal cutting efficiency of the electrode on the tissue. It is especially suitable for clinical operation of electrodes with larger diameters or longer lengths. Since there is at least one convex edge on any angled plane, no matter how the electrode rotates, there are always one or more high points in contact with the tissue, ensuring the stability and consistency of the cutting process and avoiding a decrease in cutting efficiency or tissue tearing due to angular deviation. It alleviates the technical problem in the prior art of using a non-circular sealing structure on the outer peripheral surface to reduce the contact area, which increases the difficulty of operation for doctors and reduces surgical efficiency due to the directional nature of the bend angle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surgical electrode tip and a surgical electrode operating device. Background Technology

[0002] The application of electrosurgical equipment has brought about a revolutionary change in modern medical surgery. High-frequency electrosurgical technology achieves tissue cutting through a high-voltage arc formed between electrodes and tissue. Its basic principle is to utilize the high current density generated at the contact point by high-frequency current to achieve a precise cutting effect. In clinical practice, the contact area between the electrode and the tissue directly affects the current density distribution; the smaller the contact area, the greater the current density and the more precise the cutting effect.

[0003] With advancements in medical technology, high-frequency electrosurgery has become widely used in various clinical departments, leading to the development of diverse equipment and consumables to meet the needs of different surgical procedures. Traditional electrode design primarily optimizes cutting performance by adjusting the electrode shape and size, with increasing electrode length being a common method to improve cutting efficiency. However, this method has inherent drawbacks: while increasing the effective cutting length, it also expands the contact area between the electrode and tissue, resulting in a decrease in current density and ultimately weakening the cutting effect.

[0004] To address this issue, existing technologies have proposed improvements, such as using a non-circular sealing structure on the outer periphery to reduce the contact area. While these solutions improve cutting performance to some extent, the introduction of directional angled structures may increase the difficulty of surgical manipulation and affect the smoothness of the procedure. This design, while improving physical parameters, may reduce overall surgical efficiency and fails to fully meet clinical needs. Utility Model Content

[0005] The purpose of this invention is to provide a surgical electrode tip and a surgical electrode operating device to alleviate the technical problem in the prior art where the outer peripheral surface design of the non-circular sealing structure is used to reduce the contact area. Because the bend angle is directional, this increases the difficulty of operation for doctors and reduces the efficiency of surgery.

[0006] The surgical electrode tip provided by this utility model includes: an electrode application part and a protruding ridge;

[0007] The outer periphery of the electrode application section is provided with a torsion section, and the outer periphery of the torsion section is provided with the protruding ridges arranged in a spiral shape, and there is at least one protruding ridge in any angle plane where the axis of the electrode application section is located.

[0008] In an optional implementation,

[0009] The cross-section of the torsion section perpendicular to the axis of the electrode application part is a non-circular closed structure.

[0010] In an optional implementation,

[0011] The outer periphery of the electrode application section is provided with the torsion section.

[0012] In an optional implementation,

[0013] One or more torsion segments are provided, and any two adjacent torsion segments are spaced apart along the axial direction of the electrode application section.

[0014] In an optional implementation,

[0015] The outer periphery of the electrode application section is provided with the torsion section.

[0016] In an optional implementation,

[0017] The protruding ridges are provided with one or more.

[0018] In an optional implementation,

[0019] The protruding ridges are arranged with equal or non-equal pitch along the axial direction of the electrode application part.

[0020] In an optional implementation,

[0021] The surgical electrode tip also includes an end cap;

[0022] The end cap is disposed at the end of the electrode application part, and the end cap and the electrode application part are provided with a flow channel hole, and an inner flow channel is formed in the flow channel hole.

[0023] In an optional implementation,

[0024] The electrode application part and the end cap are made of insulating material, and the protruding ridge is made of conductive material.

[0025] Secondly, the surgical electrode knife operating device provided by this utility model includes an operating component, a conveying component, and the surgical electrode knife head;

[0026] The operating component is connected to the conveying component, the conveying component has an energy transmission element, the energy transmission element is connected to the surgical electrode tip, and the surgical electrode tip is disposed at the end of the conveying component away from the operating component;

[0027] The operating component is configured to drive the surgical electrode tip to rotate along its own axis via the energy transmission component, so that the surgical electrode tip can extend or retract relative to the delivery component.

[0028] In an optional implementation,

[0029] The conveying component includes an outer tube, a connecting joint, and a limiting component;

[0030] The energy transfer element is inserted through the outer tube, and the end of the energy transfer element near the surgical electrode tip is connected to the connecting connector. The connecting connector is used to connect the energy transfer element and the surgical electrode tip.

[0031] The limiting member is disposed at the end of the outer tube away from the operating component, the electrode application part passes through the limiting member, and the inner wall of the limiting member is provided with a threaded groove that cooperates with the protrusion, so that when the surgical electrode tip rotates along itself, the surgical electrode tip can extend and retract relative to the limiting member.

[0032] In an optional implementation,

[0033] The operating components include a rotating component and a stationary component;

[0034] The rotating member is used for the energy transmission element to pass through, and the rotating member is connected to the energy transmission element;

[0035] The fixing member is connected to the outer tube, and the fixing member is threadedly connected to the rotating member so that the rotating member can rotate relative to the fixing member, thereby driving the energy transmission element and the surgical electrode head to rotate along their own axis.

[0036] In an optional implementation,

[0037] The surgical electrode knife operating device also includes a first liquid injection component;

[0038] The first injection component is disposed on the rotating member, and the energy transmission member has a first liquid channel that communicates with the inner flow channel in the surgical electrode tip. The first injection component is connected to the first liquid channel and is used to inject liquid into the inner flow channel through the first liquid channel.

[0039] In an optional implementation,

[0040] The surgical electrode knife operating device also includes a second liquid injection component;

[0041] The second injection component is disposed on the fixing member;

[0042] There is a gap between the outer tube and the energy transfer component, forming a second liquid channel;

[0043] The second liquid injection component is connected to the second liquid channel and is used to deliver liquid into the second liquid channel. The liquid in the second liquid channel washes the electrode application part and the outer surface of the protrusion along the inner wall of the limiting member.

[0044] The surgical electrode tip provided by this utility model, due to the presence of convex ridges, initially contacts the tissue only through the raised edges, significantly reducing the actual contact area. Under the same power output conditions, the current density is significantly increased, thereby improving the thermal cutting efficiency of the electrode on the tissue. It is especially suitable for clinical operations with larger diameter or longer electrodes. Since there is at least one convex ridge on any angled plane, no matter how the electrode rotates, there are always one or more high points in contact with the tissue, ensuring the stability and consistency of the cutting process and avoiding a decrease in cutting efficiency or tissue tearing due to angular deviation. It alleviates the technical problem in the prior art where the outer peripheral surface design of the non-circular sealing structure is used to reduce the contact area, but because the bend angle is directional, it increases the difficulty of operation for doctors and reduces the efficiency of surgery. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the overall structure of the surgical electrode tip provided in an embodiment of the present invention;

[0047] Figure 2 A schematic diagram of the structure of the surgical electrode tip provided in an embodiment of this utility model from a frontal view.

[0048] Figure 3 Schematic diagrams of four different shapes of surgical electrode tips provided for embodiments of this utility model;

[0049] Figure 4 A schematic diagram of a surgical electrode tip with a partial torsion section provided in an embodiment of this utility model;

[0050] Figure 5 A schematic diagram of the structure of a surgical electrode tip with a segmented torsion section provided in an embodiment of this utility model;

[0051] Figure 6 Schematic diagrams of two embodiments of the surgical electrode tip having a convex ridge provided for the present utility model;

[0052] Figure 7 A schematic diagram of the overall structure of the surgical electrode knife operating device provided in this embodiment of the utility model;

[0053] Figure 8 for Figure 7 Enlarged cross-sectional view of the structure at point A in the middle;

[0054] Figure 9 A partial enlarged view of the operating components in the surgical electrode knife operating device provided in an embodiment of this utility model;

[0055] Figure 10 for Figure 9 Enlarged cross-sectional view of the structure at point C;

[0056] Figure 11 for Figure 7 Enlarged cross-sectional view of the structure at point B;

[0057] Figure 12 This is a schematic diagram showing the connection between the limiting component and the surgical electrode tip in the surgical electrode knife operating device provided in an embodiment of the utility model.

[0058] Icons: 100-Surgical electrode tip; 110-Electrode application section; 120-Protruding ridge; 130-End cap; 140-Flow channel hole; 150-First scale line; 200-Operating component; 210-Rotating component; 211-Rotating part; 212-Holding part; 213-Insertion groove; 214-Second scale line; 220-Fixing component; 221-Energy input part; 222-Spring; 300-Transport component; 310-Energy transfer component; 311-First liquid channel; 312-Second liquid channel; 320-Outer tube; 330-Connecting connector; 340-Limiting component; 400-First injection component; 410-Fixing connector; 411-Limiting protrusion; 420-Connecting component; 421-Connector connection part; 430-External connector; 500-Second injection component. Detailed Implementation

[0059] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0063] like Figure 1 As shown, the surgical electrode tip 100 provided in this embodiment includes: an electrode application section 110 and a protrusion 120; the outer periphery of the electrode application section 110 is provided with a torsion section, and the outer periphery of the torsion section is provided with protrusions 120 arranged in a spiral shape, and there is at least one protrusion 120 on any angle plane where the axis of the electrode application section 110 is located, so that the electrode always maintains at least one contact point with the tissue surface during rotation, thereby ensuring cutting efficiency and operational stability.

[0064] like Figure 2 As shown, in an optional embodiment, the surgical electrode tip 100 further includes an end cap 130; the end cap 130 is disposed at the end of the electrode application part 110, and the end cap 130 and the electrode application part 110 are provided with a flow channel hole 140, and an inner flow channel is formed in the flow channel hole 140. The inner flow channel is used for the delivery of liquid media, such as the infusion of coolant or drug solution, to assist in tissue processing and electrode cooling during the surgical procedure.

[0065] In an optional embodiment, the electrode application part 110 and the end cap 130 are made of insulating material, and the protrusion 120 is made of conductive material, which effectively limits the current application area and ensures that tissue cutting or coagulation is achieved only through the protrusion 120 portion, avoiding unnecessary thermal damage.

[0066] The surgical electrode tip 100 provided in this embodiment, due to the presence of the protruding ridge 120, makes initial contact with the tissue only through the protruding edge when the electrode comes into contact with the tissue, significantly reducing the actual contact area. Under the same power output conditions, the current density is significantly increased, thereby improving the thermal cutting efficiency of the electrode on the tissue. It is especially suitable for clinical operations with larger diameter or longer electrodes. Since there is at least one protruding ridge 120 on any angled plane, no matter how the electrode rotates, there are always one or more high points in contact with the tissue, ensuring the stability and consistency of the cutting process. It avoids the decrease in cutting efficiency or tissue tearing caused by angular deviation. It alleviates the technical problem in the prior art of using a non-circular sealing structure outer peripheral surface design to reduce the contact area, which increases the difficulty of operation for doctors and reduces the efficiency of surgery due to the directional nature of the bend angle.

[0067] In an optional embodiment, the cross-section of the torsion section perpendicular to the axis of the electrode application portion 110 is a non-circular closed structure, for example... Figure 3 As shown, this includes four surgical electrode tips 100 with different cross-sectional shapes, such as... Figure 3 The leftmost cross-section is a multi-segment continuous circular arc structure, with adjacent circular arcs bending in opposite directions. Figure 3 The two middle models have regular polygonal cross-sectional shapes. Figure 3 The rightmost cross-section has a structure with alternating arcs and line segments. The specific shape of the surgical electrode tip 100 is selected according to actual needs based on this structure with alternating arcs and line segments.

[0068] In alternative implementations, such as Figure 4 As shown, the outer periphery of the electrode application section 110 is provided with a torsion section. One or more torsion sections can be provided, and any two adjacent torsion sections are spaced apart along the axial direction of the electrode application section 110. The spaced arrangement helps to improve the adhesion and contact stability between the electrode and the target tissue or electrode carrier during the application process, and at the same time enhances the adaptability of the electrode in bending or torsion states.

[0069] In addition, such as Figure 1 , Figure 2 and Figure 3 As shown, the outer periphery of the electrode application section 110 may also be provided with torsion sections, and the length and position of the torsion sections can be selected according to the actual situation.

[0070] In optional embodiments, one or more protruding ridges 120 are provided. The provision of protruding ridges 120 can further enhance the friction and contact area between the electrode and the target surface, thereby improving the efficiency and stability of signal acquisition or energy transmission. The specific number of protruding ridges 120 is selected according to the application, for example... Figure 1 , Figure 2, Figure 3 and Figure 4 The surgical electrode tip 100 has a structure with multiple convex ridges 120, while Figure 5 , Figure 6 It adopts a structure with only one protruding ridge (120).

[0071] In an optional embodiment, the protruding ridges 120 are arranged with equal or non-equal pitch along the axial direction of the electrode application portion 110, such as... Figure 6 As shown, where Figure 6 The one on the left has a single 120mm convex ridge and equal pitch thread arrangement. Figure 6 The one on the right has a single 120-inch ridge and a non-equal pitch arrangement. The equal pitch arrangement is suitable for applications with high requirements for uniform contact, while the non-equal pitch arrangement can be optimized according to actual usage needs. For example, a non-equal pitch arrangement can be selected to enhance contact performance in a specific area.

[0072] In summary, by providing a torsion section on the outer periphery of the electrode application section 110 and providing a protrusion 120 on the torsion section, and by flexibly designing the number and arrangement of the protrusion 120, the surgical electrode tip 100 can maintain good conductivity while having higher fit, flexibility and adaptability, making it suitable for a variety of complex usage environments and application scenarios.

[0073] Based on the above, such as Figure 7 As shown, the surgical electrode knife operating device provided in this embodiment includes an operating component 200, a conveying component 300, and a surgical electrode knife head 100. The operating component 200 is connected to the conveying component 300. The conveying component 300 has an energy transmission element 310, which is connected to the surgical electrode knife head 100. The surgical electrode knife head 100 is disposed at the end of the conveying component 300 away from the operating component 200. The operating component 200 is configured to drive the surgical electrode knife head 100 to rotate along its own axis through the energy transmission element 310. Since the surgical electrode knife is connected to the energy transmission element 310, the surgical electrode knife head 100 can extend or retract relative to the conveying component 300.

[0074] Thus, through the connection between the operating component 200 and the delivery component 300, and the setting of the energy transmission component 310, the surgical electrode tip 100 can rotate along its own axis, allowing the doctor to precisely control the position of the electrode tip during the operation, thereby improving the accuracy and safety of the operation. Furthermore, the extension or retraction movement of the surgical electrode tip 100 relative to the delivery component 300 allows the electrode tip to work at different depths and angles, adapting to various surgical needs, helping doctors to operate more flexibly in complex anatomical structures, and reducing operation time and trauma.

[0075] like Figure 2 As shown, a first scale line 150 is also provided on the twisting section along the axis of the surgical electrode head 100. The extension and retraction length of the surgical electrode head 100 is determined by the first scale line 150, thereby controlling the extension and retraction length of the surgical electrode head 100 more precisely.

[0076] Regarding the structure and shape of the conveying component 300, specifically:

[0077] like Figure 8 As shown, the delivery component 300 includes an outer tube 320, a connecting joint 330, and a limiting member 340. The outer tube 320 is covered with an energy transfer component 310, which passes through the outer tube 320. The end of the energy transfer component 310 near the surgical electrode tip 100 is connected to one end of the connecting joint 330. The other end of the connecting joint 330 is fitted with an electrode application part 110 and contacts the protrusion 120 on the electrode application part 110, transferring energy to the protrusion 120. The connecting joint 330 can be specifically configured as a connecting tube, and the inner wall of the connecting tube can be connected to the energy transfer component 310 and the electrode application part 110 by means of snap-fit ​​or thread.

[0078] The limiting member 340 is disposed at the end of the outer tube 320 away from the operating component 200. The electrode application part 110 passes through the limiting member 340, and the inner wall of the limiting member 340 is provided with a threaded groove that cooperates with the protrusion 120. When the surgical electrode head 100 rotates along itself, the protrusion 120 on the surgical electrode head 100 cooperates with the threaded groove, so that the entire surgical electrode head 100 can extend and retract relative to the limiting member 340, and the extension and retraction of the surgical electrode head 100 can be adjusted.

[0079] In addition, the torsion section on the surgical electrode tip 100 can be specifically configured according to the situation, for example... Figure 12 As shown, the outer periphery of the electrode application section 110 is provided with a torsion section. The protrusion 120 on the torsion section cooperates with the threaded groove to adjust and realize the telescopic movement of the surgical electrode head 100. The specific setting length of the torsion section is selected according to the actual situation.

[0080] Regarding the structure and shape of the operating component 200, specifically:

[0081] like Figure 7 , Figure 9 As shown, the operating component 200 includes a rotating component 210 and a fixed component 220; both the fixed component 220 and the rotating component 210 have through holes for the energy transmission component 310 to pass through, and the rotating component 210 is fixedly connected to the energy transmission component 310, thereby connecting the rotating component 210 and the energy transmission component 310 into a whole, so that the rotation of the rotating component 210 drives the energy transmission component 310 to rotate together.

[0082] The fixed component 220 is connected to the outer tube 320, and the fixed component 220 is threadedly connected to the rotating component 210 so that the rotating component 210 can rotate relative to the fixed component 220, thereby driving the energy transmission component 310 and the surgical electrode head 100 to rotate along their own axis.

[0083] Furthermore, the rotating member 210 includes a rotating part 211 and a gripping part 212. The rotating part 211 is connected to the fixed member 220 by a thread, so that the rotating part 211 can extend or retract relative to the fixed member 220. In order to facilitate the user to accurately understand the extension or retraction length of the rotating part 211 relative to the fixed member 220, a second scale line 214 is provided on the outer surface of the rotating part 211 along the axial direction. By observing the second scale line 214, the user can intuitively know the extension or retraction length of the electrode application part 110, thereby achieving precise control of the position of the electrode application part 110.

[0084] The gripping part 212 is connected to the end of the rotating part 211 away from the fixing member 220. Specifically, the gripping part 212 is formed by extending outward from the outer side of the rotating part 211 and then extending along the axis of the rotating part 211, so that a gap is formed between the gripping part 212 and the rotating part 211. The gap surrounds the insertion groove 213, which is used for the end of the fixing member 220 to extend into.

[0085] The specific structure of the insertion slot 213 is as follows: Figure 9 As shown, the gripping part 212 extends outward from the outer side of the rotating part 211 for a certain distance, and then extends along the axis of the rotating part 211 to form a U-shaped space, which is the insertion groove 213. When the gripping part 212 drives the rotating part 211 to rotate, the end of the fixing member 220 can be inserted into the insertion groove 213, thereby ensuring that the relative movement between the fixing member 220 and the rotating part 211 is smooth and stable.

[0086] The insertion slot 213 not only provides space for the end of the fixing member 220 to extend, but also limits the extension length. This design can effectively prevent the end of the fixing member 220 from extending too far, thereby protecting the equipment and ensuring the safety and reliability of operation.

[0087] In summary, by connecting the rotating part 211 of the rotating member 210 with the fixed member 220 via a threaded connection, and by forming an insertion groove 213 with the gripping part 212 and the rotating part 211, a surgical electrode knife operating device for a surgical electrode knife head 100 is provided. This device is simple in structure, easy to operate, and provides precise control. It not only improves the accuracy and safety of surgical operations, but also simplifies the operation process and enhances the practicality and reliability of the equipment.

[0088] In alternative implementations, such as Figure 9 , Figure 10 As shown, the surgical electrode knife operating device also includes a first liquid injection component 400; the first liquid injection component 400 is disposed on the rotating member 210, and the energy transmission member 310 has a first liquid channel 311 formed inside, which communicates with the inner flow channel in the surgical electrode knife head 100. The first liquid injection component 400 is connected to the first liquid channel 311 and is used to inject liquid into the inner flow channel through the first liquid channel 311.

[0089] like Figure 10 As shown, the first injection component 400 includes a fixed connector 410, a connecting member 420, and an external connector 430. The fixed connector 410 is fixed to the outer wall of the end of the gripping part 212 away from the rotating part 211 and is located on the axis of the energy transmission member 310. The outer wall of the end of the fixed connector 410 away from the gripping part 212 extends outward to form a limiting protrusion 411. The inner wall of the connecting member 420 is provided with a limiting groove. The limiting protrusion 411 extends into the limiting groove to restrict the connecting member 420 from moving along the axis relative to the fixed connector 410, so that the fixed connector 410 can rotate freely relative to the connecting member 420. This allows the rotating member 210 to rotate freely without affecting the injection function of the first injection component 400.

[0090] To further enhance the sealing performance, a sealing ring can be installed in the limiting groove to achieve a sealed connection between the limiting protrusion 411 and the limiting groove, preventing liquid from flowing into the limiting groove. This not only ensures the smoothness of the liquid injection process but also improves the reliability and safety of the entire device.

[0091] The external connector 430 is used to connect to an external injection device. The end of the external connector 430 away from the external injection device extends into the connecting member 420 and is fixed by a threaded connection. The inner wall of the connecting member 420 extends to form a connector connection portion 421. The external connector 430 is sleeved on the connector connection portion 421, and the connector connection portion 421 is connected to the fixed connector 410. Through the connector connection portion 421, the communication between the external connector 430 and the fixed connector 410 can be realized, thereby ensuring that the liquid can be smoothly transferred from the external injection device to the surgical area.

[0092] In alternative implementations, such as Figure 11 As shown, the fixed component 220 is provided with an energy access part 221. One end of the energy access part 221 has a connector that connects to an external energy device, and the other end extends into the fixed component 220 and connects to the energy transfer component 310. The energy access part 221 is used to transfer the energy generated by the external energy device to the energy transfer component 310, ensuring the high efficiency and stability of energy transfer.

[0093] The energy access part 221 specifically includes a metal connector and a metal spring 222. The metal connector has a perforation for the energy transfer member 310 to pass through. A metal spring 222 with a certain elasticity is provided inside the perforation. The metal spring 222 is tightly attached to the energy transfer member 310, thereby ensuring that the energy access part 221 can smoothly transfer energy to the energy transfer member 310, improving the reliability of energy transmission and enhancing the durability of the system.

[0094] In addition, there is a gap between the outer tube 320 and the energy transfer element 310, forming a second liquid channel 312. The fixing member 220 is provided with a second liquid injection component 500, which can be configured as a connector. The connector is disposed on the surface of the fixing member 220. External liquid enters into the second liquid channel 312 through the second liquid injection component 500. The liquid in the second liquid channel 312 flows along the inner wall of the limiting member 340 to flush the outer surface of the electrode application part 110 and the protrusion 120. This design not only provides additional cooling and lubrication effects, but also helps to keep the electrode application part 110 clean, improving surgical results and safety.

[0095] In summary, by incorporating the first injection component 400 and the energy access unit 221, this embodiment provides a surgical electrode knife operating device that is simple in structure, easy to operate, and reliable in performance. This not only improves the accuracy and safety of surgical operations but also simplifies the operating process and enhances the practicality and reliability of the device.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A surgical electrode tip (100), characterized in that, include: Electrode application section (110) and protrusion (120); The outer periphery of the electrode application section (110) is provided with a torsion section, and the outer periphery of the torsion section is provided with the protruding ridges (120) arranged in a spiral shape, and there is at least one protruding ridge (120) in any angle plane where the axis of the electrode application section (110) is located.

2. The surgical electrode tip (100) according to claim 1, characterized in that, The cross-section of the torsion section perpendicular to the axis of the electrode application part (110) is a non-circular closed structure.

3. The surgical electrode tip (100) according to claim 2, characterized in that, The outer periphery of the electrode application section (110) is provided with the torsion section.

4. The surgical electrode tip (100) according to claim 3, characterized in that, One or more of the torsion segments are provided, and any two adjacent torsion segments are spaced apart along the axial direction of the electrode application section (110).

5. The surgical electrode tip (100) according to claim 2, characterized in that, The outer periphery of the electrode application section (110) is provided with the torsion section.

6. The surgical electrode tip (100) according to any one of claims 1-5, characterized in that, The protruding ridge (120) is provided with one or more ridges.

7. The surgical electrode tip (100) according to claim 6, characterized in that, The protruding ridges (120) are arranged with equal pitch or non-equal pitch along the axial direction of the electrode application part (110).

8. The surgical electrode tip (100) according to claim 1, characterized in that, The surgical electrode tip (100) also includes an end cap (130). The end cap (130) is disposed at the end of the electrode application part (110), and the end cap (130) and the electrode application part (110) are provided with a flow channel hole (140), and an inner flow channel is formed in the flow channel hole (140).

9. The surgical electrode tip (100) according to claim 8, characterized in that, The electrode application part (110) and the end cap (130) are made of insulating material, and the protrusion (120) is made of conductive material.

10. A surgical electrode knife operating device, characterized in that, It includes an operating component (200), a delivery component (300), and a surgical electrode tip (100) as described in any one of claims 1-9. The operating component (200) is connected to the delivery component (300), the delivery component (300) has an energy transfer element (310), the energy transfer element (310) is connected to the surgical electrode tip (100), and the surgical electrode tip (100) is disposed at the end of the delivery component (300) away from the operating component (200); The operating component (200) is configured to drive the surgical electrode tip (100) to rotate along its own axis via the energy transfer component (310), so that the surgical electrode tip (100) extends or retracts relative to the delivery component (300).

11. The surgical electrode knife operating device according to claim 10, characterized in that, The conveying component (300) includes an outer tube (320), a connecting joint (330), and a limiting member (340). The energy transfer element (310) is inserted through the outer tube (320). The end of the energy transfer element (310) near the surgical electrode tip (100) is connected to the connector (330). The connector (330) is used to connect the energy transfer element (310) and the surgical electrode tip (100). The limiting member (340) is disposed at the end of the outer tube (320) away from the operating component (200), the electrode application part (110) passes through the limiting member (340), and the inner wall of the limiting member (340) is provided with a threaded groove that cooperates with the protrusion (120), so that when the surgical electrode tip (100) rotates along itself, the surgical electrode tip (100) can extend and retract relative to the limiting member (340).

12. The surgical electrode knife operating device according to claim 11, characterized in that, The operating component (200) includes a rotating component (210) and a fixing component (220); The rotating member (210) is used for the energy transmission member (310) to pass through, and the rotating member (210) is connected to the energy transmission member (310); The fixing member (220) is connected to the outer tube (320), and the fixing member (220) is threadedly connected to the rotating member (210) so that the rotating member (210) can rotate relative to the fixing member (220) to drive the energy transmission member (310) and the surgical electrode head (100) to rotate along their own axis.

13. The surgical electrode knife operating device according to claim 12, characterized in that, The surgical electrode knife operating device also includes a first liquid injection component (400). The first injection component (400) is disposed on the rotating member (210). The energy transmission member (310) has a first liquid channel (311) that communicates with the inner flow channel in the surgical electrode tip (100). The first injection component (400) communicates with the first liquid channel (311) and is used to inject liquid into the inner flow channel through the first liquid channel (311).

14. The surgical electrode knife operating device according to claim 12, characterized in that, The surgical electrode knife operating device also includes a second liquid injection component (500). The second injection component (500) is disposed on the fixing member (220); There is a gap between the outer tube (320) and the energy transfer element (310) to form a second liquid channel (312). The second liquid injection component (500) is connected to the second liquid channel (312). The second liquid injection component (500) is used to deliver liquid to the second liquid channel (312). The liquid in the second liquid channel (312) flows along the inner wall of the limiting member (340) to flush the electrode application part (110) and the outer surface of the protrusion (120).

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