Electrode stem assembly, high-frequency surgical knife and high-frequency surgical equipment

Abstract

The utility model discloses an electrode stem assembly, a high-frequency surgical knife and high-frequency surgical equipment, and relates to the technical field of medical instruments. The electrode rod assembly comprises a rod body, an energy output electrode wire, an energy input electrode wire, a monitoring current output electrode wire and a monitoring current input electrode wire, the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire and the monitoring current input electrode wire are insulated from one another and are electrically connected to a host of the high-frequency surgical equipment. According to the technical scheme, the risk that nervous tissue is accidentally injured by the high-frequency surgical equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an electrode rod assembly, a high-frequency surgical knife, and a high-frequency surgical device. Background Technology

[0002] High-frequency surgical equipment uses high-frequency current to cut tissues and perform coagulation. To avoid accidentally damaging nerve tissue during surgery, high-frequency surgical equipment is usually used in conjunction with nerve monitoring equipment.

[0003] The nerve monitoring device releases a stimulating current to the surgical site and receives a feedback current. Since the feedback current is different for different human tissues, the change in the feedback current can be used to determine whether the tissue is close to nerve tissue.

[0004] However, in order not to affect the surgical line of sight and the surgical operation on the lesion area, the monitoring point of the nerve monitoring device is usually a certain distance away from the output point of the high-frequency current, which can easily lead to delays and misjudgments, causing the high-frequency surgical device to accidentally damage nerve tissue. Utility Model Content

[0005] The main purpose of this invention is to provide an electrode rod assembly, a high-frequency surgical blade, and a high-frequency surgical device, aiming to reduce the risk of accidental injury to nerve tissue by the high-frequency surgical device.

[0006] To achieve the above objectives, the present invention proposes an electrode rod assembly for use in high-frequency surgical equipment. The electrode rod assembly includes a rod body and an energy output electrode wire, an energy input electrode wire, a monitoring current output electrode wire, and a monitoring current input electrode wire disposed within the rod body. The energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are mutually insulated and electrically connected to the main unit of the high-frequency surgical equipment.

[0007] In one embodiment, the electrode rod assembly further includes a protective sleeve disposed within the rod body, through which the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire pass.

[0008] In one embodiment, the protective sleeve is provided with an insulating partition that divides the interior of the protective sleeve axially into at least two receiving cavities, wherein any one of the energy output electrode wire and the energy input electrode wire, and any one of the monitoring current output electrode wire and the monitoring current input electrode wire are respectively located in different receiving cavities.

[0009] In one embodiment, the partition divides the interior of the protective sleeve into four receiving cavities along the axial direction, and the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are respectively inserted into one of the receiving cavities.

[0010] In one embodiment, the monitoring current output electrode wire and the monitoring current input electrode wire are arranged opposite to each other; or,

[0011] The monitoring current output electrode wire and the monitoring current input electrode wire are arranged adjacent to each other.

[0012] In one embodiment, the electrode rod assembly further includes a first switch electrically connected to the monitoring current output electrode wire, for controlling the monitoring current output electrode wire to be turned on or off; and / or,

[0013] The rod body has an open structure at one end near the cutter head, and the inner diameter of the open structure gradually increases along the direction close to the cutter head.

[0014] This utility model also proposes a high-frequency surgical instrument, comprising:

[0015] handle;

[0016] Blade tip; and

[0017] The aforementioned electrode rod assembly is inserted through the handle, with one end of the electrode rod assembly electrically connected to the main unit and the other end of the electrode rod assembly connected to the cutting head;

[0018] The cutter head has a front end and a rear end, and the ends of the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are all located at the rear end and are evenly distributed.

[0019] In one embodiment, the protective sleeve is fitted over the outside of the rear end; and / or,

[0020] The cutter head is provided with a clamping groove that extends through the cutter head along its axial direction and divides the cutter head into two opposing cutter head sub-body. The ends of the energy output electrode wire and the energy input electrode wire are respectively connected to one of the cutter head sub-body.

[0021] The ends of the monitoring current output electrode wire and the monitoring current input electrode wire are both located in the clamping groove, or the ends of the monitoring current output electrode wire and the monitoring current input electrode wire are respectively connected to one of the cutter heads.

[0022] In one embodiment, the high-frequency surgical tool further includes a second switch located on the handle, used to control the monitoring current output electrode wire to be turned on or off.

[0023] This utility model also proposes a high-frequency surgical device, comprising:

[0024] The aforementioned electrode rod assembly; and

[0025] The main unit, the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are respectively electrically connected to the main unit.

[0026] The electrode rod assembly of this invention includes a rod body and energy output electrode wires, energy input electrode wires, monitoring current output electrode wires, and monitoring current input electrode wires disposed within the rod body. The rod body provides support and protection. The energy output electrode wires output high-frequency current to the surgical site, and the high-frequency current then returns to the host unit via the energy input electrode wires to perform surgical cutting, coagulation, and other operations. The monitoring current output electrode wires output monitoring current to the surgical site, and the monitoring current then returns to the host unit via the monitoring current input electrode wires. The host unit analyzes the changes in the monitoring current before and after the operation to determine whether the surgical site is close to nerve tissue, thereby improving the safety of the surgery. The four electrode wires are insulated from each other to prevent short circuits and ensure stable output of high-frequency current and monitoring current during the operation. Integrating the monitoring current output electrode wires, monitoring current input electrode wires, energy output electrode wires, and energy input electrode wires into a single electrode rod assembly reduces the distance between the energy output point and the nerve monitoring point, reduces delay, thereby improving the accuracy of nerve monitoring and reducing the risk of nerve damage. In addition, when adjusting specific surgical points, the movable electrode rod assembly can move four electrodes simultaneously, reducing operation steps and improving ease of use. Furthermore, it does not change the distance between the energy output point and the nerve monitoring point, thus not affecting the accuracy of the nerve monitoring function, thereby further improving the safety of the surgery. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A cross-sectional view of an embodiment of the electrode rod assembly provided by this utility model;

[0029] Figure 2 A cross-sectional view of an embodiment of the high-frequency surgical instrument provided by this utility model;

[0030] Figure 3 A cross-sectional view of a partial structure of an embodiment of the high-frequency surgical instrument provided by this utility model;

[0031] Figure 4 A partial structural schematic diagram of an embodiment of the high-frequency surgical instrument provided by this utility model;

[0032] Figure 5 A schematic diagram of the blade head of the high-frequency surgical instrument provided by this utility model.

[0033] Explanation of icon numbers:

[0034] 100. Electrode rod assembly; 110. Energy output electrode wire; 120. Energy input electrode wire; 130. Monitoring current output electrode wire; 140. Monitoring current input electrode wire; 150. Protective sleeve; 151. Partition; 152. Receiving cavity; 160. Rod body; 161. Open structure;

[0035] 200. Handle; 210. Second switch;

[0036] 300, cutter head; 310, cutter head body; 301, clamping groove.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] This invention proposes an electrode rod assembly for use in high-frequency surgical equipment.

[0043] Please see Figures 1 to 3 , Figure 1 This is a cross-sectional view of an embodiment of the electrode rod assembly provided by this utility model. Figure 2 This is a cross-sectional view of an embodiment of the high-frequency surgical instrument provided by this utility model. Figure 3 A cross-sectional view of a partial structure of an embodiment of the high-frequency surgical instrument provided by this utility model.

[0044] In one embodiment of this utility model, the electrode rod assembly 100 includes a rod body 160 and energy output electrode wires 110, energy input electrode wires 120, monitoring current output electrode wires 130, and monitoring current input electrode wires 140 disposed within the rod body 160. The energy output electrode wires 110, energy input electrode wires 120, monitoring current output electrode wires 130, and monitoring current input electrode wires 140 are mutually insulated and electrically connected to the main unit of the high-frequency surgical device.

[0045] The electrode rod assembly 100 of this utility model includes a rod body 160 and energy output electrode wires 110, energy input electrode wires 120, monitoring current output electrode wires 130 and monitoring current input electrode wires 140 disposed within the rod body 160. The rod body 160 serves as a support and protection unit. The energy output electrode wire 110 outputs high-frequency current to the surgical site, and the high-frequency current returns to the host unit via the energy input electrode wire 120 to perform surgical cutting, coagulation, and other operations. The monitoring current output electrode wire 130 outputs monitoring current to the surgical site, and the monitoring current returns to the host unit via the monitoring current input electrode wire 140. The host unit analyzes the changes in the monitoring current before and after the operation to determine whether the surgical site is close to nerve tissue, thus improving surgical safety. The four electrode wires are insulated from each other to prevent short circuits and ensure stable output of high-frequency current and monitoring current during the operation. Integrating the monitoring current output electrode lead 130, the monitoring current input electrode lead 140, the energy output electrode lead 110, and the energy input electrode lead 120 into a single electrode rod assembly 100 reduces the distance between the energy output point and the nerve monitoring point, minimizing delay and thus improving the accuracy of nerve monitoring and reducing the risk of nerve damage. Furthermore, when adjusting specific surgical points, the movable electrode rod assembly 100 can move all four electrodes simultaneously, reducing operational steps and improving ease of use, without altering the distance between the energy output point and the nerve monitoring point, thus maintaining the accuracy of nerve monitoring and further enhancing surgical safety.

[0046] The energy output electrode wire 110, energy input electrode wire 120, monitoring current output electrode wire 130 and monitoring current input electrode wire 140 are mutually insulated. This can be achieved by spacing the electrode wires in pairs, or by setting a partition made of insulating material between the electrode wires.

[0047] In one embodiment, the electrode rod assembly 100 further includes a protective sleeve 150 disposed within the rod body 160, and the energy output electrode wire 110, the energy input electrode wire 120, the monitoring current output electrode wire 130, and the monitoring current input electrode wire 140 are all disposed within the protective sleeve 150.

[0048] Reference Figure 1 In this embodiment of the invention, a protective sleeve 150 is wrapped around the four electrode wires. The protective sleeve 150 is typically made of insulating material, such as rubber or polytetrafluoroethylene. The protective sleeve 150 protects the four internal electrode wires, extends the service life of the electrode rod assembly 100, and prevents accidental contact between the electrode wires and patient tissues or other instruments, thus avoiding accidents such as short circuits or electric shocks and further improving the safety of the surgery.

[0049] In one embodiment, the protective sleeve 150 is provided with an insulating partition 151, which divides the interior of the protective sleeve 150 into at least two receiving cavities 152 along the axial direction. Any one of the energy output electrode wire 110 and the energy input electrode wire 120, and any one of the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 are respectively located in different receiving cavities 152.

[0050] Reference Figure 1 In this embodiment of the invention, the protective sleeve 150 has a partition 151 inside, which is divided into at least two receiving cavities 152. Any one of the energy output electrode wire 110 and the energy input electrode wire 120 is located in a different receiving cavity 152 from any one of the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140. That is, the electrode wire responsible for outputting and inputting high-frequency current is physically isolated from the electrode wire responsible for monitoring nerve tissue, which reduces the interference between the two types of electrode wires, improves the stability of high-frequency current output and the accuracy of nerve monitoring function.

[0051] In one embodiment, the partition 151 divides the interior of the protective sleeve 150 into four receiving cavities 152 along the axial direction, and the energy output electrode wire 110, the energy input electrode wire 120, the monitoring current output electrode wire 130, and the monitoring current input electrode wire 140 are respectively inserted into one of the receiving cavities 152.

[0052] Reference Figure 1 In an embodiment of this utility model, the partition 151 divides the interior of the protective sleeve 150 into four receiving cavities 152, and the four electrode wires are respectively disposed in the four receiving cavities 152. Each electrode wire is located in a separate receiving cavity 152, which further reduces the interference between different electrode wires, thereby further improving the stability of high-frequency current output and the accuracy of nerve monitoring function.

[0053] In one embodiment, the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 are arranged opposite to each other; or,

[0054] The monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 are arranged adjacent to each other.

[0055] In embodiments of this invention, the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 can be arranged opposite to each other or adjacent to each other. Specifically, in this embodiment, refer to... Figure 1 The current monitoring output electrode wire 130 and the current monitoring input electrode wire 140 are arranged opposite each other, making it easy to distinguish between the electrode wire responsible for energy transfer and the electrode wire responsible for nerve monitoring, which facilitates maintenance and replacement.

[0056] In one embodiment, the electrode rod assembly 100 further includes a first switch electrically connected to the monitoring current output electrode wire 130, for controlling the monitoring current output electrode wire 130 to be turned on or off.

[0057] In an embodiment of this invention, the electrode rod assembly 100 further includes a first switch (not shown). The user can control the monitoring current output electrode wire 130 to conduct via the first switch to activate the nerve monitoring function, and control the monitoring current output electrode wire 130 to disconnect to deactivate the nerve monitoring function. Deactivating the nerve monitoring function when not needed reduces energy waste and unnecessary stimulation of patient tissues, thus lowering surgical risks. Specifically, the high-frequency current output and nerve monitoring function can be activated simultaneously, or only one of them can be activated.

[0058] Reference Figure 2 and Figure 3 This utility model also proposes a high-frequency surgical instrument, comprising:

[0059] Handle 200;

[0060] Blade 300; and

[0061] The electrode rod assembly 100 described above is inserted through the handle 200. One end of the electrode rod assembly 100 is used to electrically connect to the main unit, and the other end of the electrode rod assembly 100 is connected to the cutting head 300.

[0062] The cutter head 300 has a front end and a rear end, and the energy output electrode wire 110, energy input electrode wire 120, monitoring current output electrode wire 130 and monitoring current input electrode wire 140 are located at the rear end and are evenly distributed.

[0063] The specific structure of the electrode rod assembly 100 is as described in the above embodiments. Since this high-frequency surgical tool adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The energy output electrode wire 110, energy input electrode wire 120, monitoring current output electrode wire 130, and monitoring current input electrode wire 140 are all passed through the handle 200, allowing the user to operate by holding the handle 200, which is convenient. The blade head 300 is located at the end of the electrode rod assembly 100 away from the main unit. Both the high-frequency current and the monitoring current are output and input through the blade head 300. The structure is simple, and the distance between the energy output point and the nerve monitoring point is close, further reducing the risk of accidental injury to nerve tissue.

[0064] Combination Figure 3 and Figure 4In this embodiment of the invention, the front end of the blade 300 contacts the patient's tissue, while the rear end is away from the patient's tissue. The ends of the energy output electrode wire 110, energy input electrode wire 120, monitoring current output electrode wire 130, and monitoring current input electrode wire 140 are all located at the rear end of the blade 300, which reduces the risk of the electrode wires being contaminated during the operation and ensures the conductivity of the electrode wires.

[0065] In one embodiment, the protective sleeve 150 is fitted onto the exterior of the rear end; and / or,

[0066] The cutter head 300 is provided with a clamping groove 301, which penetrates the cutter head 300 along the axial direction and divides the cutter head 300 into two opposing cutter head sub-body 310. The energy output electrode wire 110 and the energy input electrode wire 120 are respectively connected to one cutter head sub-body 310.

[0067] The ends of the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 are both located in the clamping groove 301, or the ends of the monitoring current output electrode wire 130 and the monitoring current input electrode wire 140 are respectively connected to a cutter head body 310.

[0068] Reference Figure 3 In this embodiment of the invention, the protective sleeve 150 is fitted over the rear end of the blade head 300 near one end, enhancing protection at the connection point between the blade head 300 and the electrode wires. The four electrode wires are evenly spaced at the rear end of the blade head 300, ensuring a uniform connection and reducing interference between them. This further improves the stability of the high-frequency energy output and the accuracy of the neural monitoring function.

[0069] Combination Figures 4 to 5 In an embodiment of this utility model, the blade 300 includes two opposing blade sub-bodies 310, with a clamping groove 301 between the two blade sub-bodies 310. The ends of the energy output electrode wire 110 and the energy input electrode wire 120 are respectively connected to one blade sub-bodies 310. When outputting high-frequency current, the high-frequency current is transmitted from the energy output electrode wire 110 to the connected blade sub-bodies 310, passes through the tissue in the clamping groove 301, and returns to the connected energy input electrode wire 120 through the other blade sub-bodies 310. The transmission path is short, which is beneficial to improving the coagulation effect on the tissue in the clamping groove 301.

[0070] The monitoring current output electrode lead 130 and the monitoring current input lead can be disposed within the clamping groove 301. Neither is directly connected to any of the blade sub-body 310. After releasing the monitoring current at the end of the monitoring current output electrode lead 130, it returns directly to the monitoring current input lead through the tissue, thus enabling simultaneous high-frequency current output and nerve monitoring functions. Alternatively, the monitoring current output electrode lead 130 and the monitoring current input lead can be connected to a single blade sub-body 310, allowing both high-frequency current and nerve monitoring current to be released and received through the blade 300. However, it should be noted that in this case, high-frequency current output and nerve monitoring functions cannot be performed simultaneously. Nerve monitoring can be performed before outputting the high-frequency current to ensure that it is not near nerve tissue before outputting the high-frequency current.

[0071] In one embodiment, the high-frequency surgical instrument further includes a second switch 210, which is disposed on the handle 200 and used to control the on or off state of the monitoring current output electrode wire 130; and / or,

[0072] The rod body 160 has an open structure 161 at one end near the cutter head 300, and the inner diameter of the open structure 161 gradually increases along the direction near the cutter head 300.

[0073] Reference Figure 2 In this embodiment of the utility model, a second switch 210 is provided on the handle 200. The user can control the monitoring current output electrode wire 130 to be turned on or off through the second switch 210. The operation of the second switch 210 on the handle 200 is more convenient and faster.

[0074] Combination Figures 2 to 3 In this embodiment of the utility model, the rod body 160 is fixed to the handle 200. The handle 200 is provided with a telescopic structure. The telescopic structure drives the protective sleeve 150, so that the protective sleeve 150, the cutter head 300 and the four electrode wires can extend and retract synchronously. An open structure 161 is provided at one end of the rod body 160 near the cutter head 300. The open structure 161 is flared, which reduces the risk of the protective sleeve 150 getting stuck with the rod body 160 when it is retracted.

[0075] This utility model also proposes a high-frequency surgical device, comprising:

[0076] The aforementioned electrode rod assembly 100; and

[0077] The main unit, energy output electrode wire 110, energy input electrode wire 120, monitoring current output electrode wire 130 and monitoring current input electrode wire 140 are electrically connected to the main unit respectively.

[0078] The specific structure of the electrode rod assembly 100 is as described in the above embodiments. Since this high-frequency surgical device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The high-frequency current generated by the host is released to the surgical site through the energy output electrode wire 110, and then returns to the host through the energy input electrode wire 120, achieving cutting, coagulation, and other effects. The monitoring current generated by the host is released to the surgical site through the monitoring current output electrode wire 130, and then returns to the host through the monitoring current input electrode wire 140. The host identifies the changes in the monitoring current before and after, and determines whether the blade 300 is close to nerve tissue.

[0079] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electrode rod assembly, used in a high-frequency surgical device, characterized in that, The electrode rod assembly includes a rod body and an energy output electrode wire, an energy input electrode wire, a monitoring current output electrode wire, and a monitoring current input electrode wire disposed within the rod body. The energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are insulated from each other and are respectively electrically connected to the host of the high-frequency surgical device.

2. The electrode pole assembly of claim 1, wherein, The electrode rod assembly also includes a protective sleeve disposed within the rod body, through which the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire pass.

3. The electrode pole assembly of claim 2, wherein, The protective sleeve is provided with an insulating partition, which divides the interior of the protective sleeve into at least two receiving cavities along the axial direction. Any one of the energy output electrode wire and the energy input electrode wire, and any one of the monitoring current output electrode wire and the monitoring current input electrode wire are located in different receiving cavities.

4. The electrode rod assembly as described in claim 3, characterized in that, The partition divides the interior of the protective sleeve into four receiving cavities along the axial direction, and the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are respectively inserted into one of the receiving cavities.

5. The electrode stem assembly of claim 4, wherein, The monitoring current output electrode wire and the monitoring current input electrode wire are arranged opposite to each other; or, The monitoring current output electrode wire and the monitoring current input electrode wire are arranged adjacent to each other.

6. The electrode pole assembly of any one of claims 1 to 5, wherein, The electrode rod assembly further includes a first switch, which is electrically connected to the monitoring current output electrode wire and is used to control the monitoring current output electrode wire to be turned on or off; and / or The ends of the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire that are away from the host are used to connect to the cutter head. The end of the rod body near the cutter head has an open structure, and the inner diameter of the open structure gradually increases along the direction close to the cutter head.

7. A high-frequency surgical tool, characterized by comprising: include: handle; Blade tip; as well as The electrode rod assembly as described in any one of claims 2 to 5, wherein the electrode rod assembly passes through the handle, one end of the electrode rod assembly is used for electrical connection to the main unit, and the other end of the electrode rod assembly is connected to the cutting head; The cutter head has a front end and a rear end, and the ends of the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are all located at the rear end and are evenly distributed.

8. The high-frequency surgical instrument as described in claim 7, characterized in that, The protective sleeve is fitted over the outside of the rear end; and / or, The cutter head is provided with a clamping groove that extends through the cutter head along its axial direction and divides the cutter head into two opposing cutter head sub-body. The ends of the energy output electrode wire and the energy input electrode wire are respectively connected to one of the cutter head sub-body. The ends of the monitoring current output electrode wire and the monitoring current input electrode wire are both located in the clamping groove, or the ends of the monitoring current output electrode wire and the monitoring current input electrode wire are respectively connected to one of the cutter heads.

9. The high-frequency surgical tool according to Claim 7, wherein The high-frequency surgical instrument also includes a second switch, which is located on the handle and is used to control the conduction or disconnection of the monitoring current output electrode wire.

10. A high-frequency surgical apparatus, characterized by comprising: include: The electrode rod assembly as described in any one of claims 1 to 5; as well as The main unit, the energy output electrode wire, the energy input electrode wire, the monitoring current output electrode wire, and the monitoring current input electrode wire are respectively electrically connected to the main unit.

Images