Surgical instrument and surgical system

Abstract

The invention discloses a surgical instrument, a surgical system and a surgical instrument.The surgical instrument comprises an instrument body, the instrument body is designed to be in a tweezers form for achieving tissue dissection and comprises first tweezers and second tweezers, and the surgical instrument is integrally provided with a bioelectricity monitoring device and / or an electrocoagulation device; wherein the bioelectricity monitoring device is used for monitoring a bioelectricity signal of a tissue to be subjected to surgical treatment by utilizing the first tweezers and the second tweezers; the electrocoagulation device is used for conducting electrocoagulation treatment on tissue to be subjected to surgical treatment through the first tweezers and the second tweezers. The surgical instrument has the functions of electrocoagulation and / or bio-electricity signal monitoring and tissue dissection, in the using process, the operation of electrocoagulation or electrophysiology monitoring or tissue dissection can be selectively executed according to needs, an operator can flexibly select according to needs, time waste caused by frequent replacement of the surgical instrument in the surgical process can be reduced, and the operation efficiency is improved. And the operation efficiency is greatly improved.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a surgical instrument and a surgical system including the surgical instrument. Background Technology

[0002] The body's tissues and organs contain numerous blood vessels and nerves. During surgery, when dissecting tissue, it is necessary to promptly stop bleeding from damaged blood vessels to reduce bleeding and avoid obstructing the surgical field. Furthermore, for areas with important nerve distribution, it is essential to monitor the bioelectrical signals at the site of dissection during surgery to detect whether nerves pass through the dissected area. Examples include cardiac surgery, neurosurgery, tumor resection, ENT surgery, and ophthalmic surgery.

[0003] Taking brain tumor resection in neurosurgical craniocerebral surgery as an example, these tumors are attached to the cerebral cortex or near important cranial nerve pathways (such as meningiomas, acoustic neuromas, etc.). During the operation, tissue dissection is required, and electrophysiological signals need to be monitored continuously to determine the presence of nerves. For bleeding sites, electrocoagulation is required in a timely manner to seal blood vessels and stop bleeding. Currently, during the operation, the surgeon needs to constantly change surgical instruments (dissectors or forceps, bipolar electrocoagulators, bipolar electrophysiological monitoring probes) as needed to perform dissection, electrocoagulation, and physiological monitoring, which seriously affects the operation time and causes surgeon fatigue, psychological stress, and reduced operational precision. In addition, most of the bipolar electrocoagulators and bipolar electrophysiological monitoring probes currently used are disposable, which greatly increases the cost of the operation.

[0004] Therefore, how to provide a solution that can at least partially solve the above problems has become a technical problem that needs to be solved in this field. Summary of the Invention

[0005] In view of this, this application proposes a surgical instrument and a surgical system.

[0006] According to a first aspect of this application, a surgical instrument is proposed, comprising an instrument body designed in the form of forceps for tissue dissection and including a first forceps and a second forceps. The surgical instrument integrates a bioelectrical monitoring device and / or an electrocoagulation device, wherein: the bioelectrical monitoring device is used to monitor the bioelectrical signals of the tissue to be surgically treated using the first and second forceps; and the electrocoagulation device is used to electrocoagulate the tissue to be surgically treated using the first and second forceps.

[0007] Preferably, the first and second tweezers include an operating part and a conductor part, wherein the operating part includes an insulating material and a conductive core disposed inside the insulating material, and the conductor part includes a conductive material, so as to integrate the bioelectric monitoring device and the electrocoagulation device.

[0008] Preferably, the operating part and the conductor part are an integrated structure or a detachably connected structure.

[0009] Preferably, the surface of the conductor portion is a smooth surface, and the exterior is provided with a coating that prevents tissue adhesion. This coating is a conductive coating. Preferably, the conductive coating is made of one of titanium oxide coating, tungsten carbide coating, platinum coating, or diamond coating.

[0010] Preferably, the conductive core is one of stainless steel, titanium alloy, copper alloy, silver alloy, platinum alloy, copper, aluminum, copper alloy, tin-plated copper, and silver-plated copper; and / or the insulating material is one of ceramic, polytetrafluoroethylene, polyimide, polyethylene, polyvinyl chloride, silicone, polyurethane, epoxy resin, polypropylene, or polycarbonate; and / or the conductive material is at least one of stainless steel, copper, nickel alloy, titanium, platinum, titanium alloy, copper alloy, silver alloy, or platinum alloy.

[0011] Preferably, one of the first and second tweezers is provided with a bioelectric monitoring device, and the other is provided with an electrocoagulation device; or the first and second tweezers are respectively provided with their own bioelectric monitoring devices and electrocoagulation devices.

[0012] According to a second aspect of this application, a surgical system is proposed, comprising surgical instruments, a bioelectric monitoring controller, and an electrocoagulation controller, wherein the surgical instruments are those described above, the bioelectric monitoring controller is electrically connected to and communicates with the bioelectric monitoring device, and the electrocoagulation controller is electrically connected to and communicates with the electrocoagulation device.

[0013] Preferably, the surgical system further includes a switching device to selectively switch the surgical instruments between tissue dissection, electrocoagulation mode, and bioelectric monitoring mode, wherein: in tissue dissection or the bioelectric monitoring mode, the bioelectric monitoring controller is electrically connected to and communicates with the bioelectric monitoring device, while the electrocoagulation controller is disconnected from the electrocoagulation device; in tissue dissection or the electrocoagulation mode, the electrocoagulation controller is electrically connected to and communicates with the electrocoagulation device, while the bioelectric monitoring controller is disconnected from the bioelectric monitoring device.

[0014] Preferably, the conversion device is disposed on the instrument body of the surgical instrument; or the conversion device is disposed on the electrical connection line between the bioelectric monitoring controller and the bioelectric monitoring device and between the electrocoagulation controller and the electrocoagulation device, preferably the conversion device is a foot switch; or the conversion device is a software switch in the bioelectric monitoring controller and / or the electrocoagulation controller.

[0015] Preferably, both the bioelectric monitoring controller and the electrocoagulation controller are independent of the instrument body of the surgical instrument.

[0016] The surgical instrument proposed in this application has the functions of electrocoagulation and / or bioelectric signal monitoring and tissue dissection. During use, the operator can choose to perform electrocoagulation, electrophysiological monitoring or tissue dissection as needed. The operator can choose flexibly as needed, which can reduce the time wasted by frequently changing surgical instruments during the operation and greatly improve the efficiency of the operation.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the surgical instruments according to this application.

[0020] Figure 2 This is a schematic diagram of the surgical system according to this application. Detailed Implementation

[0021] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] During surgery, especially procedures involving delicate manipulations, rich blood vessels, and important nerves, it is crucial to promptly control bleeding at the surgical site and monitor for the presence of nerve fibers at the dissection site to avoid damage to nerve fibers and impair nerve function. Currently, frequent changes of different surgical instruments are required to achieve these functions, increasing the complexity and inconvenience of the procedure. Furthermore, most bioelectrical monitoring devices and electrocoagulation devices are single-use, which not only increases medical waste generation but also burdens the environment.

[0023] Therefore, according to the first aspect of this application, as Figure 1 As shown, a surgical instrument is proposed, comprising an instrument body designed as forceps for tissue dissection and including a first forceps 11 and a second forceps 12. The surgical instrument integrates a bioelectric monitoring device 13 and / or an electrocoagulation device 14, wherein: the bioelectric monitoring device 13 is used to monitor the bioelectric signals of the tissue to be surgically treated using the first forceps 11 and the second forceps 12; and the electrocoagulation device 14 is used to electrocoagulate the tissue to be surgically treated using the first forceps 11 and the second forceps 12.

[0024] The forceps of the aforementioned instrument body can take any appropriate form, such as straight forceps, curved forceps, or gun-shaped forceps. The specific form is selected based on the surgical location and type. In this application, gun-shaped forceps are used as an example. The front ends of the first forceps 11 and the second forceps 12 are used for dissecting tissue, electrocoagulation, or monitoring bioelectrical signals. The rear ends have a connecting area. The connecting area can be connected by at least one of welding, riveting, bolting, or integral molding. The rear ends of the first forceps 11 and the second forceps 12 are connected, and the first forceps 11 and the second forceps 12 are independently arranged in areas other than the rear ends, maintaining a certain distance between them to facilitate the surgeon's switching between the clamping and releasing states when operating the surgical instruments.

[0025] The aforementioned bioelectric monitoring device 13 and / or electrocoagulation device 14 are mounted on the instrument body, allowing the surgeon to switch the functions of the surgical instruments as needed during the operation, avoiding the waste of surgical time caused by constantly changing instruments and reducing surgeon fatigue and psychological stress. Furthermore, integrating the bioelectric monitoring device 13 and / or electrocoagulation device 14 onto the surgical instrument also avoids the use of disposable bioelectric monitoring or electrocoagulation devices, effectively reducing surgical costs and the amount of disposable medical supplies used, aligning with current medical concepts of environmental protection and sustainable development. Secondly, the surgeon does not need to frequently change surgical instruments, simplifying the surgical procedure, improving surgical efficiency, indirectly shortening the time per operation, and reducing the risk of patient exposure under anesthesia, further ensuring the safety, smoothness, and comfort of the surgery.

[0026] When performing the dissection function, the aforementioned surgical instruments are used to separate the tissue to be treated from other tissues. These tissues may be different depending on the location, such as mucosa, tumor tissue, muscle tissue, adipose tissue, fibrous tissue, connective tissue, or blood vessels. When performing the electrocoagulation function, the aforementioned surgical instruments are used to achieve hemostasis in the tissue to be treated, which may be a blood vessel. Alternatively, when performing the dissection function, if it is uncertain whether there are nerves in the area to be dissected, bioelectrical monitoring is required. In this case, the aforementioned surgical instruments are used to monitor whether there are nerves in the tissue to be treated, whether the tissue contains nerves or not. If nerves pass through the tissue, the dissection bypasses this area; if no nerves are present, dissection can proceed.

[0027] According to a preferred embodiment of this application, to facilitate the use of surgical instruments, preferably, the first forceps 11 and the second forceps 12 may include an operating part and a conductive part. The operating part may include an insulating material and a conductive core disposed within the insulating material. The conductive part may include a conductive material to integrate a bioelectric monitoring device 13 and an electrocoagulation device 14. The operating part serves as the surgeon's handheld portion, facilitating operation and enabling the first forceps 11 and the second forceps 12 to be in a clamping or releasing state for tissue dissection. The length and thickness of the operating part and the conductive part can be selected according to actual needs. For example, in tumor resection surgery, the diameter of the conductive part can be larger; in vascular anastomosis surgery, the diameter of the conductive part can be smaller. The distance between the conductive parts also needs to be selected based on the actual surgical situation. The conductive core is disposed inside the operating part for current transmission with the conductive part, enabling bioelectric monitoring and / or electrocoagulation. The operating part is externally provided with insulating material, which effectively prevents current from diffusing into non-target areas during surgery, reducing thermal damage to surrounding tissues and preventing the surgeon from being electrocuted or burned. The aforementioned conductor portion is disposed at the first end of the aforementioned operating portion and is used to perform the functions of bioelectrical monitoring and / or electrocoagulation or tissue dissection. Integrating electrocoagulation and / or bioelectrical monitoring into the first forceps 11 and the second forceps 12 eliminates the need for frequent instrument changes, simplifies the operating procedure, and improves surgical efficiency.

[0028] To enhance the stability and flexibility of surgical instruments, the operating part and the conductor part are preferably either an integrated structure or a detachable connection. An integrated structure eliminates seams or interfaces on the instrument body, preventing structural wear caused by frequent disassembly and assembly, and preventing signal transmission deviations or electrocoagulation instability due to loose components, thus improving equipment reliability. Secondly, the integrated design makes the instrument's appearance more streamlined and concise. During surgery, cleaning and disinfection are more convenient and efficient, reducing potential breeding grounds for bacteria and viruses and effectively lowering the risk of postoperative infection. A detachable connection allows surgeons to quickly change to suitable conductor parts for different surgical needs. For example, delicate neurosurgery requires a highly sensitive conductor part to accurately detect weak electrical signals, while general surgery has relatively lower conductor requirements. The detachable design enables multiple uses for a single forceps, increasing instrument utilization and reducing procurement costs. Furthermore, the detachable connection facilitates daily maintenance and troubleshooting. If the conductor part malfunctions, the entire forceps does not need to be discarded; only the damaged part needs to be replaced, saving maintenance costs and allowing the instrument to return to normal operation quickly, ensuring that surgical schedules are not affected by instrument maintenance cycles. Depending on the actual needs, the operating part and the conductor part can be selected as an integrated structure or a detachable connection structure. The detachable connection method can be threaded, snap-fit, plug-in, magnetic, spring lock, etc. This application is not limited to the above connection methods. Any method that can fasten the operating part and the conductor part can be applied to the detachable connection method in this application.

[0029] To ensure the smoothness and safety of surgical instrument operation, preferably, the surface of the conductor portion is a smooth surface, and the exterior may be coated with a conductive coating to prevent tissue adhesion. Preferably, the conductive coating is made of titanium dioxide, tungsten carbide, platinum, or diamond. The conductive coating not only provides excellent conductivity, ensuring accurate current transmission, but also possesses good corrosion resistance, high-temperature resistance, and biocompatibility, increasing the durability and stability of the instrument. Platinum coating is preferred. Platinum coating has excellent conductivity, corrosion resistance, and biocompatibility, allowing for long-term contact with human tissue, effectively improving the stability and safety of the surgical instrument, while also exhibiting good durability in high-temperature environments. The smooth surface of the conductor portion, coated with a conductive coating to prevent tissue adhesion, effectively reduces tissue adhesion, improving the smoothness and safety of surgical operation. Simultaneously, the smooth surface reduces cleaning difficulty, improves the hygiene of the instrument, and makes it suitable for repeated use.

[0030] To ensure the durability and safety of surgical instruments, the conductive core is preferably one of stainless steel, titanium alloy, copper alloy, silver alloy, platinum alloy, copper, aluminum, copper alloy, tin-plated copper, and silver-plated copper, preferably titanium alloy. Titanium alloy has excellent biocompatibility, high strength, and light weight, making it suitable for surgical instruments requiring high-precision operation. Titanium alloys effectively resist corrosion within the body, maintaining long-term stability; and / or the insulating material can be one of ceramics, polytetrafluoroethylene, polyimide, polyethylene, polyvinyl chloride, silicone, polyurethane, epoxy resin, polypropylene, or polycarbonate, preferably polytetrafluoroethylene, which has excellent high-temperature resistance, chemical stability, and electrical insulation, suitable for long-term operating environments, effectively preventing current leakage and ensuring the safety of patients and surgeons; and / or the conductive material can be at least one of stainless steel, copper, nickel alloy, titanium, platinum, titanium alloy, copper alloy, silver alloy, or platinum alloy, preferably platinum alloy or titanium alloy, and even more preferably platinum alloy. Platinum alloy, as a conductive material, has very high conductivity and corrosion resistance, ensuring stable current transmission, providing precise control during surgery, and avoiding tissue damage caused by unstable current. The above materials enable efficient current transmission, excellent corrosion resistance, biocompatibility, and mechanical strength in surgical instruments. The conductive material ensures stable current flow, while the insulating material effectively isolates the current, prevents leakage, and improves safety. Meanwhile, the high temperature resistance, chemical resistance, and good cleanability of these materials enhance the durability and convenience of the equipment, adapting to the needs of high-frequency surgeries and ensuring the accuracy and stability of surgical procedures.

[0031] To achieve bioelectric monitoring and / or electrocoagulation, preferably, one of the first forceps 11 and the second forceps 12 can be equipped with a bioelectric monitoring device 13, and the other with an electrocoagulation device 14, to achieve single-stage electrocoagulation and single-stage electrophysiological monitoring. In the aforementioned single-stage electrophysiological monitoring, one of the first forceps 11 and the second forceps 12 serves as a stimulation electrode, used to contact the tissue and apply an electrical signal in stimulation mode, or record the bioelectric signal in recording mode; the other serves as a reference electrode, forming a potential difference with the stimulation electrode to ensure that the bioelectric signal has a known reference point, thereby accurately testing and analyzing the bioelectric signal; the aforementioned reference electrode can also be the patient's skin or other stable potential point. In the aforementioned single-stage electrocoagulation, one of the first forceps 11 and the second forceps 12 serves as an electrocoagulation tip, contacting the tissue and transmitting a high-frequency current to coagulate blood vessels. During the single-stage electrocoagulation operation, a large-area electrode pad is also provided on the patient's body, connected to a grounding tip, one end of which is connected to the electrocoagulation controller to ensure that the current can return to the electrocoagulation controller. The aforementioned grounding tip is not one of the first forceps 11 or the second forceps 12. The combined application of single-stage electrocoagulation and single-stage bioelectrophysiological monitoring enables real-time tissue electrophysiological monitoring and precise electrocoagulation during surgery, suitable for complex surgeries requiring high precision, high safety, and real-time feedback. This helps surgeons precisely control the surgical process, reduce the risk of complications, protect important nerves and tissues, and improve surgical efficiency and safety. Alternatively, the first forceps 11 and the second forceps 12 can be respectively equipped with their own bioelectrophysiological monitoring devices 13 and electrocoagulation devices 14 to achieve bipolar electrocoagulation and bipolar bioelectrophysiological monitoring. Taking bipolar electrocoagulation and bipolar bioelectrophysiological monitoring as an example in this application, the instrument body is in the form of forceps, which can achieve tissue dissection on one hand, and form a bipolar structure between the first forceps 11 and the second forceps 12 on the other hand, to achieve bipolar electrocoagulation and bipolar electrophysiological monitoring. In bipolar electrophysiological monitoring and bipolar electrocoagulation, one of the first forceps 11 and the second forceps 12 serves as the positive electrode. The other serves as the negative electrode, and the current flows through the positive electrode, the tissue between the two electrodes, and then to the negative electrode.

[0032] Bipolar electrophysiological monitoring offers higher signal resolution and greater precision, making it suitable for identifying weak or localized neural activity. Its localized current allows for clean signal transmission even in complex surgeries, accurately locating active areas of nerve fibers and avoiding misinterpretations of activity in other regions. It also reduces signal contamination, minimizing the risk of false positives and false negatives. The stimulation current is confined between the electrodes, preventing excessive stimulation of surrounding tissues and reducing the risk of tissue damage during surgery. This makes it suitable for surgeries requiring high-precision neurological function protection.

[0033] Bipolar electrocoagulation uses current that flows only between two electrodes, concentrating energy between the clamped tissues and reducing thermal damage to surrounding tissues. Furthermore, the short current path of bipolar electrocoagulation prevents interference with other equipment. Using forceps to clamp blood vessels allows for precise hemostasis with good results. It is suitable for surgeries requiring precise control and proximity to vital tissues, such as brain tumor resection and vascular malformation surgery in neurosurgery. It is also applicable to ophthalmic surgery, minimally invasive surgery, and other surgeries requiring delicate manipulation.

[0034] According to the second aspect of this application, such as Figure 2 As shown, a surgical system is proposed, which may include surgical instruments, a bioelectric monitoring controller 15, and an electrocoagulation controller 16. The surgical instruments are those described above. The bioelectric monitoring controller 15 is electrically connected to and communicates with the bioelectric monitoring device 13, and the electrocoagulation controller 16 is electrically connected to and communicates with the electrocoagulation device 14. Both the bioelectric monitoring controller 15 and the electrocoagulation controller 16 are independent of the instrument body of the surgical instruments and are electrically connected to the second end of the instrument body. The electrical connection can be in a suitable manner, such as a fixed electrical connection or a detachable electrical connection. The detachable electrical connection can be one of the following: threaded connection, spring clip connection, and snap-fit ​​connection. The detachable electrical connection facilitates the sterilization of the instrument body.

[0035] To facilitate switching between different functions of the surgical system during surgery, the surgical system preferably includes a switching device to selectively switch the surgical instruments between tissue dissection, electrocoagulation, and bioelectric monitoring modes. Specifically, in the tissue dissection or bioelectric monitoring mode, the bioelectric monitoring controller 15 and the bioelectric monitoring device 13 are electrically connected and communicate with each other, while the electrocoagulation controller 16 is disconnected from the electrocoagulation device 14. In the tissue dissection or electrocoagulation mode, the electrocoagulation controller 16 and the electrocoagulation device 14 are electrically connected and communicate with each other, while the bioelectric monitoring controller 15 is disconnected from the bioelectric monitoring device 13. This surgical system, by integrating a switching device, allows for flexible switching between tissue dissection, electrocoagulation, and bioelectric monitoring modes to meet the needs of different stages of the surgery. This improves the flexibility and safety of the surgery, avoids functional interference, simplifies the operation process, and enhances operational accuracy and efficiency. It also reduces the types of equipment and management complexity, ensuring that the tissue dissection, electrocoagulation, and bioelectric monitoring functions are independently and precisely controlled during the surgery, thus contributing to improved patient safety.

[0036] To facilitate the switching between different functions of surgical instruments, preferably, the switching device can be located on the instrument body; or the switching device can be located on the electrical connection line between the bioelectric monitoring controller 15 and the bioelectric monitoring device 13, and between the electrocoagulation controller 16 and the electrocoagulation device 14, preferably as a foot switch; or the switching device can be a software switch in the bioelectric monitoring controller 15 and / or the electrocoagulation controller 16. By setting the switching device as a foot switch or a software switch, the surgical system can easily switch between electrocoagulation mode and bioelectric monitoring mode, improving the system's flexibility and operational efficiency. A foot switch allows the surgeon to operate it manually during surgery, reducing interference, while a software switch simplifies the operating interface, making the system more intelligent. This design improves surgical precision, reduces errors, enhances safety, optimizes space and cost utilization, enhances the adaptability and versatility of the equipment, and ensures precise control and patient safety during surgery.

[0037] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0038] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0039] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this invention.

Claims

1. A surgical instrument comprising an instrument body designed in the form of forceps for tissue dissection and including a first forceps (11) and a second forceps (12), characterized in that: The surgical instrument is integrated with a bioelectrical monitoring device (13) and / or an electrocoagulation device (14), wherein: The bioelectric monitoring device (13) is used to monitor the bioelectric signals of the tissue to be surgically treated using the first forceps (11) and the second forceps (12); The electrocoagulation device (14) is used to electrocoagulate the tissue to be surgically treated using the first forceps (11) and the second forceps (12).

2. The surgical instrument according to claim 1, characterized in that, The first tweezers (11) and the second tweezers (12) include an operating part and a conductor part, wherein the operating part includes an insulating material and a conductive core disposed inside the insulating material, and the conductor part includes a conductive material to integrate a bioelectric monitoring device (13) and an electrocoagulation device (14).

3. The surgical instrument according to claim 2, characterized in that, The operating part and the conductor part are either an integrated structure or a detachable connection structure.

4. The surgical instrument according to claim 2, characterized in that, The surface of the conductor is a smooth surface, and the exterior is provided with a coating that prevents tissue adhesion. This coating is a conductive coating. Preferably, the conductive coating is made of one of the following materials: titanium oxide coating, tungsten carbide coating, platinum coating, or diamond coating.

5. The surgical instrument according to claim 2, characterized in that, The conductive core is one of stainless steel, titanium alloy, copper alloy, silver alloy, platinum alloy, copper, aluminum, copper alloy, tin-plated copper, and silver-plated copper; and / or The insulating material is one of ceramic, polytetrafluoroethylene, polyimide, polyethylene, polyvinyl chloride, silicone, polyurethane, epoxy resin, polypropylene, or polycarbonate; and / or The conductive material is at least one of stainless steel, copper, nickel alloy, titanium, platinum, titanium alloy, copper alloy, silver alloy, or platinum alloy.

6. The surgical instrument according to claim 2, characterized in that, One of the first forceps (11) and the second forceps (12) is equipped with a bioelectric monitoring device (13), and the other is equipped with an electrocoagulation device (14); or The first tweezers (11) and the second tweezers (12) are respectively equipped with their own bioelectric monitoring devices (13) and electrocoagulation devices (14).

7. A surgical system comprising surgical instruments, a bioelectric monitoring controller (15), and an electrocoagulation controller (16), characterized in that, The surgical instrument is the surgical instrument according to any one of claims 1-6, the bioelectric monitoring controller (15) is electrically connected to and communicates with the bioelectric monitoring device (13), and the electrocoagulation controller (16) is electrically connected to and communicates with the electrocoagulation device (14).

8. The surgical system according to claim 7, characterized in that, The surgical system includes a switching device (17) to allow the surgical instruments to be selectively switched between tissue dissection, electrocoagulation mode, and bioelectrical monitoring mode, wherein: In tissue stripping or the bioelectric monitoring mode, the bioelectric monitoring controller (15) is electrically connected to and communicates with the bioelectric monitoring device (13), while the electrocoagulation controller (16) is disconnected from the electrocoagulation device (14). In tissue stripping or electrocoagulation mode, the electrocoagulation controller (16) is electrically connected to and communicates with the electrocoagulation device (14), while the bioelectric monitoring controller (15) is disconnected from the bioelectric monitoring device (13).

9. The surgical system according to claim 8, characterized in that, The conversion device (17) is disposed on the instrument body of the surgical instrument; or The switching device (17) is disposed on the electrical connection line between the bioelectric monitoring controller (15) and the bioelectric monitoring device (13) and between the electrocoagulation controller (16) and the electrocoagulation device (14). Preferably, the switching device (17) is a foot switch; or The conversion device (17) is a software switch in the bioelectric monitoring controller (15) and / or the electrocoagulation controller (16).

10. The surgical system according to claim 9, characterized in that, The bioelectric monitoring controller (15) and the electrocoagulation controller (16) are both independent of the instrument body of the surgical instrument.

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