Surgical equipment with nerve detection function and control method of surgical equipment

Abstract

The present disclosure relates to the technical field of medical devices, and provides a surgical device with a nerve detection function and a control method for the surgical device. The surgical device includes a high-frequency excitation detection circuit, a signal adjustment circuit, and a drive switching circuit. The high-frequency excitation detection circuit is used to generate a corresponding induction signal when a high-frequency excitation signal is detected; the signal adjustment circuit is used to receive the induction signal output by the high-frequency excitation detection circuit, and to adjust the induction signal to obtain an electrocoagulation function switching signal; the drive switching circuit is used to respond to the electrocoagulation function switching signal, disconnect the nerve monitoring connection end from the operating end, and connect the electrocoagulation cutting connection end to the operating end. Among them, the high-frequency excitation detection circuit includes a transformer, the primary side of the transformer is connected to the electrocoagulation cutting connection end, and the secondary side of the transformer is connected to the signal adjustment circuit. In this way, since the high-frequency excitation detection circuit is implemented by a transformer, damage to the nerve monitor can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to a surgical device with a nerve detection function and a control method for the surgical device. Background Art

[0002] Electrocoagulation and electrosurgical devices are common surgical instruments used to stop bleeding and cut tissue. Hemostasis is a fundamental yet unique aspect of neurosurgery. The use of electrocoagulation and electrosurgical devices (such as electrocoagulation forceps, electrocautery, electric hooks, plasma scalpels, or surgical robots equipped with electrocoagulation and electrosurgical functions) makes hemostasis in neurosurgery more convenient and rapid, leaving no foreign matter in the tissue. Postoperative CT scans (computed tomography) are free of artifacts, making them a crucial component of current microneurosurgical techniques and the most commonly used neurosurgical device.

[0003] Intraoperative neuromonitoring is a technology currently used frequently in clinical surgical procedures. During surgery, conductive electrodes are used to send electrical stimulation signals to stimulate nerves, inducing nerve impulses. This in turn generates electromyographic signals in the muscles innervated by the nerves, which are captured by the electrodes. Therefore, a nerve probe is clinically required to transmit electrical current to the nerves.

[0004] During surgery, the chief surgeon often switches back and forth between the electrocoagulation surgical device and the nerve probe. Each switch requires repositioning the surgical position, significantly increasing the surgical time. Therefore, a new surgical device is needed that can perform both bipolar electrocoagulation and nerve monitoring. In other words, the device can switch to the nerve detection function before electrocoagulation and cutting to detect the presence of nerves in the operating area. If no nerves are detected, the device switches to the electrocoagulation and cutting function to proceed with the surgery.

[0005] However, although current surgical equipment can switch between nerve detection function and electrocoagulation cutting function, when switching, the high-frequency excitation signal provided by the high-frequency generator device needs to first pass through the human body to form a loop before it can be sensed by the sensing device in the surgical equipment. Only then will the surgical equipment disconnect from the nerve monitor. In this way, the high-frequency excitation signal provided by the high-frequency generator device will be transmitted to the nerve monitor before being disconnected, thereby causing damage to the nerve monitor. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide a surgical device with a nerve detection function, which can avoid damage to the nerve monitor, thereby ensuring the safety of the nerve monitor.

[0007] An embodiment of the present disclosure provides a surgical device, comprising an operating end, an electrocoagulation and cutting connection end, a nerve monitoring connection end, and a function switching circuit, wherein the function switching circuit is electrically connected to the electrocoagulation and cutting connection end, the nerve monitoring connection end, and the operating end, respectively; the electrocoagulation and cutting connection end is used to connect to a high-frequency generator device, and the nerve monitoring connection end is used to connect to a nerve monitor; the function switching circuit comprises:

[0008] a high-frequency excitation detection circuit, connected to the electrocoagulation and cutting connection terminal, for detecting whether the high-frequency generator device outputs a high-frequency excitation signal when the surgical device is in the nerve detection function, and generating a corresponding induction signal when the high-frequency excitation signal is detected;

[0009] a signal adjustment circuit, wherein an input end of the signal adjustment circuit is connected to the high-frequency excitation detection circuit, and is used to receive the induction signal output by the high-frequency excitation detection circuit, and to adjust the induction signal to obtain an electrocoagulation function switching signal;

[0010] a drive switching circuit connected to the signal adjustment circuit, configured to disconnect the nerve monitoring connection terminal from the operating terminal and connect the electrocoagulation cutting connection terminal to the operating terminal in response to the electrocoagulation function switching signal, so that the surgical device switches from the nerve detection function to the electrocoagulation cutting function;

[0011] The high-frequency excitation detection circuit includes a transformer, the primary side of the transformer is connected to the electrocoagulation cutting connection end, and the secondary side of the transformer is connected to the signal adjustment circuit.

[0012] In one possible embodiment, the signal adjustment circuit is connected to the secondary side of the transformer and is used to convert and amplify the AC induction signal output by the transformer to obtain an amplified DC induction signal, and the amplified DC induction signal is the electrocoagulation function switching signal.

[0013] In one possible implementation, the signal adjustment circuit includes a rectifier circuit and an amplifier circuit. The rectifier circuit is connected to the transformer and is configured to rectify the received induction signal to obtain a DC induction signal. The amplifier circuit is connected to the output end of the rectifier circuit and is configured to amplify the DC induction signal to obtain the amplified DC induction signal.

[0014] In a possible implementation, the signal adjustment circuit further includes a voltage stabilization and amplitude limiting circuit;

[0015] The voltage stabilizing and amplitude limiting circuit is connected between the rectifier circuit and the amplifier circuit, and is used to perform voltage stabilizing and amplitude limiting processing on the direct current induction signal.

[0016] In one possible embodiment, after the surgical device switches to the electrocoagulation cutting function, the drive switching circuit is also used to disconnect the electrocoagulation cutting connection end from the operating end and connect the nerve monitoring connection end to the operating end when the electrocoagulation function switching signal is not received, so that the surgical device switches from the electrocoagulation cutting function to the nerve detection function.

[0017] In a possible implementation manner, the function switching circuit further includes a controller, and the output end of the signal adjustment circuit is further connected to the controller;

[0018] After the surgical device switches from the electrocoagulation and cutting function to the nerve detection function, the controller starts timing, and determines the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation and cutting state, and obtains the electrocoagulation and cutting time of the surgical device;

[0019] The controller is also used to determine the target delay time based on the signal output power and the electrocoagulation cutting time of the surgical device, and generate a prompt signal after the timing time reaches the target delay time; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of nerve detection.

[0020] In a possible implementation, the controller determines the operating end temperature of the surgical device based on the signal output power and the electrocoagulation cutting duration of the surgical device, and determines the target delay time based on the operating end temperature.

[0021] In a possible implementation, determining the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state includes:

[0022] obtaining a signal output voltage of the signal adjustment circuit when the surgical device is in an electrocoagulation cutting state;

[0023] Based on the signal output voltage, the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state is determined; wherein the signal output power of the high-frequency generator device is positively correlated with the signal output voltage of the signal adjustment circuit.

[0024] In a possible implementation, the operating end is provided with a temperature sensor, and the controller is connected to the temperature sensor;

[0025] After the surgical device switches from the electrocoagulation cutting function to the nerve detection function, the controller is also used to collect the temperature of the operating end through the temperature sensor, and generate a prompt signal when the temperature drops to a preset temperature; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of nerve detection.

[0026] An embodiment of the present disclosure provides a control method for a surgical device, wherein the surgical device is provided with an electrocoagulation and cutting connection terminal and a nerve monitoring connection terminal; the electrocoagulation and cutting connection terminal is used to connect to a high-frequency generator device, and the nerve monitoring connection terminal is used to connect to a nerve monitor; the surgical device includes a high-frequency excitation detection circuit, a signal adjustment circuit, and a drive switching circuit; the high-frequency excitation detection circuit includes a transformer, the primary side of the transformer is connected to the electrocoagulation and cutting connection terminal, and the secondary side of the transformer is connected to the signal adjustment circuit; the method includes:

[0027] When the surgical device is in the nerve detection function, the high-frequency excitation detection circuit detects whether the high-frequency generator device outputs a high-frequency excitation signal, and generates a corresponding induction signal when the high-frequency excitation signal is detected;

[0028] The signal adjustment circuit receives the induction signal output by the high-frequency excitation detection circuit, and adjusts the induction signal to obtain an electrocoagulation function switching signal;

[0029] The driving switching circuit responds to the electrocoagulation function switching signal, disconnects the nerve monitoring connection end from the operating end of the surgical device, and connects the electrocoagulation cutting connection end to the operating end, so that the high-frequency excitation signal output by the high-frequency generator device is output through the operating end, so that the surgical device switches from the nerve detection function to the electrocoagulation cutting function.

[0030] In the surgical device provided by the embodiments of the present disclosure, the high-frequency excitation detection circuit is implemented using a transformer. Thus, when the high-frequency generator outputs a high-frequency excitation signal, a loop is formed through the transformer, allowing the transformer to output a corresponding sensing signal. That is, even when the high-frequency signal generator is disconnected from the operating terminal and the surgical device is in the nerve detection function, the surgical device can still identify the high-frequency excitation signal emitted by the high-frequency generator. Therefore, the nerve monitor can be disconnected from the operating terminal before the high-frequency generator is connected to the operating terminal. This ensures that the nerve monitor and the high-frequency generator are not connected, and the high-frequency excitation signal emitted by the high-frequency generator is not transmitted to the nerve monitor, thereby avoiding damage to the nerve monitor and ensuring the safety of the nerve monitor.

[0031] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. The drawings herein are incorporated into and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to illustrate the technical solutions of the present disclosure. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without inventive effort.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a surgical device provided by an embodiment of the present disclosure is shown;

[0034] Figure 2 A principle block diagram of a surgical device provided by an embodiment of the present disclosure is shown;

[0035] Figure 3 A principle block diagram of a function switching circuit provided by an embodiment of the present disclosure is shown;

[0036] Figure 4 A schematic diagram showing a signal transmission process of a function switching circuit provided by an embodiment of the present disclosure is shown;

[0037] Figure 5 A principle block diagram of a signal adjustment circuit provided by an embodiment of the present disclosure is shown;

[0038] Figure 6 A principle block diagram of another function switching circuit provided by an embodiment of the present disclosure is shown;

[0039] Figure 7 Shown Figure 1 A partial enlarged view of point A in the middle;

[0040] Figure 8 Shown Figure 1 Cross-sectional view along the BB direction;

[0041] Figure 9 A circuit schematic diagram of a function switching circuit provided by an embodiment of the present disclosure is shown.

[0042] Figure 10 A flow chart of a method for controlling a surgical device provided by an embodiment of the present disclosure is shown.

[0043] Reference numerals:

[0044] 100-surgical equipment; 200-high-frequency generator equipment; 300-neuromonitor; 101-operating end; 102-electrocoagulation cutting connection end; 103-neuromonitoring connection end; 104-function switching circuit; 10-base; 20-high-frequency excitation detection circuit; 30-signal adjustment circuit; 40-drive switching circuit; 50-controller; 60-prompt device; 31-rectifier circuit; 32-voltage stabilization and limiting circuit; 33-amplifier circuit; 1010-temperature sensor; M-body; N-filling material; T-transformer; U-operational amplifier; R1-first resistor; R2-second resistor; R3-third resistor; R4-fourth resistor; R5-fifth resistor; R6-sixth resistor; K-relay; Q1-first electronic switch; Q2-second electronic switch; D1-first diode; D2-second diode; D3-third diode; D4-fourth diode; D5-fifth diode; D6-sixth diode; D7-seventh diode; C-capacitor. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the disclosure for which protection is sought, but merely represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0047] The term "and / or" herein simply describes an association relationship, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, and the existence of B alone. In addition, the term "at least one" herein refers to any combination of at least two of any one or more of a plurality of items. For example, "at least one of A, B, and C" can represent any one or more elements selected from the set consisting of A, B, and C.

[0048] In the description of the embodiments of the present disclosure, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is typically placed when in use. These terms are intended only to facilitate the description of the present disclosure and simplify the description, and are not intended to indicate or imply that the elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. In addition, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0050] Electrical connection refers to the process of connecting different components in electronic devices through electrical connections. The main function of electrical connection is to transmit electrical signals and power, and to achieve the control and regulation of various electronic devices. Mechanical connection refers to the physical connection between two or more components.

[0051] A high-frequency surgical instrument is an electrosurgical device that replaces mechanical scalpels for tissue cutting. It heats the tissue when the high-frequency, high-voltage current generated by the effective electrode tip comes into contact with the body, thereby separating and coagulating the body tissue, thereby achieving the purpose of cutting and stopping bleeding.

[0052] Take electrocoagulation forceps, for example. During neck surgeries, especially those involving malignant thyroid tumors, electrocoagulation forceps are required to coagulate small blood vessels and stop bleeding. To avoid nerve damage during surgery, current electrocoagulation forceps typically have a nerve detection function. This function can detect the presence of nerves in the operating area before coagulation. If no nerves are detected, the necessary surgical procedure can proceed normally.

[0053] However, research has found that although the current electrocoagulation forceps can switch between nerve detection function and electrocoagulation cutting function, the electrocoagulation forceps need to directly clamp the human body when switching. The high-frequency current will be sensed by the sensing device in the electrocoagulation forceps only after passing through the human body. Only then will the electrocoagulation forceps disconnect from the nerve monitor. In this way, the high-frequency excitation signal provided by the high-frequency generator device will be transmitted to the nerve monitor before disconnection, thereby causing damage to the nerve monitor, which is not conducive to the smooth progress of the operation.

[0054] Based on the above research, an embodiment of the present disclosure provides a surgical device, which includes an operating end, an electrocoagulation and cutting connection end, a nerve monitoring connection end and a function switching circuit, wherein the function switching circuit is electrically connected to the electrocoagulation and cutting connection end, the nerve monitoring connection end and the operating end respectively; the electrocoagulation and cutting connection end is used to connect to a high-frequency generator device, and the nerve monitoring connection end is used to connect to a nerve monitor; the function switching circuit includes a high-frequency excitation detection circuit, a signal adjustment circuit and a drive switching circuit.

[0055] Specifically, the high-frequency excitation detection circuit is connected to the electrocoagulation and cutting connection end, and is used to detect whether the high-frequency generator device outputs a high-frequency excitation signal when the surgical device is in the nerve detection function, and to generate a corresponding induction signal when the high-frequency excitation signal is detected; the input end of the signal adjustment circuit is connected to the high-frequency excitation detection circuit, and is used to receive the induction signal output by the high-frequency excitation detection circuit, and to adjust the induction signal to obtain an electrocoagulation function switching signal; the drive switching circuit is connected to the signal adjustment circuit, and is used to respond to the electrocoagulation function switching signal, disconnect the nerve monitoring connection end from the operating end, and connect the electrocoagulation and cutting connection end to the operating end, so that the high-frequency excitation signal output by the high-frequency generator device is output through the operating end.

[0056] The high-frequency excitation detection circuit includes a transformer, the primary side of the transformer is connected to the electrocoagulation cutting connection end, and the secondary side of the transformer is connected to the signal adjustment circuit.

[0057] In the surgical device provided by the embodiments of the present disclosure, the high-frequency excitation detection circuit is implemented using a transformer. Thus, when the high-frequency generator outputs a high-frequency excitation signal, a loop is formed through the transformer, allowing the transformer to output a corresponding sensing signal. That is, even when the high-frequency signal generator is disconnected from the operating terminal and the surgical device is in the nerve detection function, the surgical device can still identify the high-frequency excitation signal emitted by the high-frequency generator. Therefore, the nerve monitor can be disconnected from the operating terminal before the high-frequency generator is connected to the operating terminal. This ensures that the nerve monitor and the high-frequency generator are not connected, and the high-frequency excitation signal emitted by the high-frequency generator is not transmitted to the nerve monitor, thereby avoiding damage to the nerve monitor and ensuring the safety of the nerve monitor.

[0058] The surgical device provided by the embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.

[0059] See also Figure 1 As shown in FIG, a schematic diagram of the three-dimensional structure of a surgical device provided by an embodiment of the present disclosure. Figure 1 As shown, the surgical device 100 includes a base 10, an operating terminal 101, an electrocoagulation and cutting connection terminal 102, and a nerve monitoring connection terminal 103, each connected to the base 10. Specifically, the operating terminal 101 is provided at one end of the base 10, and the electrocoagulation and cutting connection terminal 102 and the nerve monitoring connection terminal 103 are provided on the side of the base 10 facing away from the operating terminal 101. It is understood that the electrocoagulation and cutting connection terminal 102 can be connected to the base 10 via a high-frequency cable, and the nerve monitoring connection terminal 103 can be connected to the base 10 via a detection line.

[0060] In the embodiment of the present disclosure, the surgical device 100 is described using bipolar coagulation forceps as an example, and the operating end 104 can be a pair of forceps tips. In other embodiments, the surgical device 100 can also be monopolar coagulation forceps, an electric knife, an electric hook, or other devices.

[0061] Please refer to Figure 2 ,in, Figure 2 This is a block diagram of the principles of a surgical device 100 provided in an embodiment of the present disclosure. The surgical device 100 also includes a function switching circuit 104, which is electrically connected to the electrocoagulation and cutting connection 102, the nerve monitoring connection 103, and the operating terminal 101. The electrocoagulation and cutting connection 102 is used to connect to the high-frequency generator device 200, and the nerve monitoring connection 103 is used to connect to the nerve monitor 300.

[0062] The function switching circuit 104 may be disposed in the base 10 or in other parts of the surgical device 100 , without limitation.

[0063] See also Figure 3 ,in, Figure 3 This is a principle block diagram of a function switching circuit provided by an embodiment of the present disclosure. Figure 3 As shown, the function switching circuit 104 includes a high-frequency excitation detection circuit 20, a signal adjustment circuit 30, and a drive switching circuit 40. The high-frequency excitation detection circuit 20, the signal adjustment circuit 30, and the drive switching circuit 40 can be arranged on a circuit board.

[0064] For example, the high-frequency excitation detection circuit 20, the signal adjustment circuit 30 and the drive switching circuit 40 can be arranged on the same circuit board, and the circuit board can be placed in the base 10, so that the high-frequency excitation detection circuit 20, the signal adjustment circuit 30 and the drive switching circuit 40 can be integrated in the base 10; of course, the high-frequency excitation detection circuit 20, the signal adjustment circuit 30 and the drive switching circuit 40 can also be set on different circuit boards, so that the high-frequency excitation detection circuit 20, the signal adjustment circuit 30 and the drive switching circuit 40 can also be respectively set in different parts of the surgical equipment 100, which can be determined according to actual needs.

[0065] Specifically, see Figure 4 As shown, the high-frequency excitation detection circuit 20 is connected to the electrocoagulation and cutting connection terminal 102, and is used to detect whether the high-frequency generator device 200 outputs a high-frequency excitation signal when the surgical device is in the nerve detection function, and generate a corresponding induction signal when the high-frequency excitation signal is detected; the input end of the signal adjustment circuit 30 is connected to the high-frequency excitation detection circuit 20, and is used to receive the induction signal output by the high-frequency excitation detection circuit 20, and adjust the induction signal to obtain an electrocoagulation function switching signal; the drive switching circuit 40 is connected to the signal adjustment circuit 30, and is used to respond to the electrocoagulation function switching signal, disconnect the nerve monitoring connection terminal 103 from the operating terminal 101, and connect the electrocoagulation and cutting connection terminal 102 to the operating terminal 101, so that the high-frequency excitation signal output by the high-frequency generator device 200 is output through the operating terminal 101, thereby switching the surgical device 100 from the nerve detection function to the electrocoagulation and cutting function.

[0066] The high-frequency excitation detection circuit 20 includes a transformer T, a primary side of the transformer T is connected to the electrocoagulation cutting connection terminal 102 , and a secondary side of the transformer T is connected to the signal adjustment circuit 30 .

[0067] In this way, when the high-frequency generator device 200 outputs a high-frequency excitation signal, a loop can be formed through the transformer T, so that the transformer T can output a corresponding induction signal. That is, even when the high-frequency signal generator device 200 is disconnected from the operating terminal 101 and the surgical device 100 is in the nerve detection function, the surgical device 100 can still recognize the high-frequency excitation signal emitted by the high-frequency generator device 200. Then, the nerve monitor 300 can be disconnected from the operating terminal 101 first, and then the high-frequency generator device 200 can be connected to the operating terminal 101. In this way, it can be ensured that the nerve monitor 300 and the high-frequency generator device 200 are not connected, so that the high-frequency excitation signal emitted by the high-frequency generator device 200 will not be transmitted to the nerve monitor 300, thereby avoiding damage to the nerve monitor 300, thereby ensuring the safety of the nerve monitor 300 and facilitating the smooth progress of the surgery.

[0068] Specifically, the signal adjustment circuit 30 is connected to the secondary side of the transformer T. The signal adjustment circuit 30 is used to convert and amplify the AC induction signal output by the transformer T to obtain an amplified DC induction signal. The amplified DC induction signal is the electrocoagulation function switching signal.

[0069] It should be noted that, since the induction signal is a signal output by the transformer T, according to the characteristics of the transformer T, the induction signal is an AC induction signal.

[0070] After the surgical device 100 switches to the electrocoagulation cutting function, the drive switching circuit 40 is also used to disconnect the electrocoagulation cutting connection terminal 102 from the operating terminal 101 and connect the nerve monitoring connection terminal 103 with the operating terminal 101 when the electrocoagulation function switching signal is not received (the electrocoagulation function switching signal changes from yes to no), so that the nerve stimulation signal output by the nerve monitor 300 is output through the operating terminal 101, so that the surgical device 100 switches from the electrocoagulation cutting function to the nerve detection function.

[0071] The high-frequency excitation signal may be a high-frequency current signal, and the nerve stimulation signal may be a current signal (stimulation current). In the disclosed embodiment, the electrocoagulation function switching signal is a high-level signal. Failure to receive the electrocoagulation function switching signal may be interpreted as failure to receive a high-level signal, i.e., receipt of a low-level signal.

[0072] For example, see Figure 5As shown, the signal adjustment circuit 30 includes a rectifier circuit 31, a voltage-stabilizing and amplitude-limiting circuit 32, and an amplifier circuit 33. The rectifier circuit 31 is connected to the transformer T and is configured to rectify the received AC induction signal to obtain a DC induction signal. The voltage-stabilizing and amplitude-limiting circuit 32 is connected between the rectifier circuit 31 and the amplifier circuit 33 and is configured to perform voltage-stabilizing and amplitude-limiting processing on the DC induction signal. The amplifier circuit 33 is connected to the output end of the rectifier circuit 31 via the voltage-stabilizing and amplitude-limiting circuit 32 and is configured to amplify the DC induction signal after voltage-stabilizing and amplitude-limiting processing to obtain an amplified DC induction signal.

[0073] In the embodiment of the present disclosure, the signal adjustment circuit 30 includes not only the rectifier circuit 31 and the amplifier circuit 33 but also the voltage stabilizing and amplitude limiting circuit 32 , thereby not only realizing the conversion and amplification processing of the sensing signal but also improving the stability of the signal.

[0074] It is understood that in some embodiments, the voltage stabilizing and limiting circuit 32 may be omitted. That is, the amplifier circuit 33 may be directly connected to the output end of the rectifier circuit 31 to amplify the DC sensing signal to obtain the amplified DC sensing signal. This can reduce both circuit complexity and circuit cost.

[0075] It is understandable that when the surgical device 100 switches from the cutting function to the nerve detection function, the electrocoagulation cutting will cause the temperature of the operating end 101 to rise. If nerve detection is performed immediately, human tissue may be burned. Therefore, in order to reduce the probability of damage to human tissue, when the surgical device 100 switches from the cutting function to the nerve detection function, a certain period of time must be allowed before nerve detection can be performed.

[0076] Therefore, in some embodiments, see Figure 6 As shown, the function switching circuit 104 further includes a controller 50 and a prompting device 60. The signal input terminal of the controller 50 is connected to the output terminal of the signal adjustment circuit 30, and the control terminal of the controller 50 is connected to the prompting device 60. Specifically, the signal input terminal of the controller 50 is connected to the output terminal of the amplifier circuit 33 in the signal adjustment circuit 30.

[0077] After the surgical device 100 switches from the electrocoagulation and cutting function to the nerve detection function, the controller 50 begins timing, determines the signal output power of the high-frequency generator 200 when the surgical device 100 is in the electrocoagulation and cutting state, and obtains the electrocoagulation and cutting duration of the surgical device 100. The controller 50 is further configured to determine a target delay time based on the signal output power and the electrocoagulation and cutting duration of the surgical device, and to generate a prompt signal when the timing reaches the target delay time. The prompt signal is configured to instruct the prompt device 60 to generate a prompt message to inform the user that the surgical device 100 is capable of performing nerve detection. This reduces the probability of damage to human tissue.

[0078] It should be noted that when the surgical device 100 is in the electrocoagulation cutting function, the controller 50 can time the signal output time of the electrocoagulation function switching signal to obtain the electrocoagulation cutting duration, and the electrocoagulation cutting function refers to the previous electrocoagulation cutting function which is currently the nerve detection function.

[0079] It is understood that the prompt device 60 can be integrated into the surgical device 100 or provided separately from the surgical device 100. When the prompt device 60 is integrated into the surgical device 100, the prompt device 60 can be an indicator light (such as a light-emitting diode), a buzzer, etc.; when the prompt device 60 is provided separately from the surgical device 100, the prompt device 60 can be an independent speaker, a player, etc. In this case, the surgical device 100 can send a prompt signal to the prompt device 60 to control the prompt device 60 to issue a prompt message, thereby reminding the user.

[0080] In addition, the embodiments of the present disclosure do not limit the specific form of the prompt information. For example, the prompt information may include voice prompt information, light prompt information, alarm prompt information, etc.

[0081] In the disclosed embodiments, the controller 50 may be a single-chip microcomputer, a microcontroller (MCU), or the like. The controller 50 may include multiple signal acquisition ports, communication ports, and multiple control ports. The controller 50 may connect to the signal conditioning circuit 30 via its signal acquisition ports to obtain the electrocoagulation function switching signal. The controller 50 may also connect to the prompting device 60 via the control ports to control the prompting device accordingly.

[0082] In other embodiments, the controller 50 may also be an application specific integrated circuit (ASIC), a programmable logic device (PLD), a digital signal processor (DSP), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof, which is not specifically limited in the embodiments of the present disclosure.

[0083] Following the above embodiment, in order to improve the accuracy of determining the target delay time, the controller is further configured to determine the target delay time based on the signal output power and the electrocoagulation cutting time of the surgical device, which may include:

[0084] The controller determines the temperature of the operating end of the surgical device according to the signal output power and the electrocoagulation cutting time of the surgical device, and determines the target delay time according to the temperature of the operating end.

[0085] In this way, the temperature of the operating end 101 is first determined, and then the cooling time is determined based on the cooling rate of the operating end 101. The cooling time is the target delay time. Specifically, the controller 50 can determine the temperature of the operating end 101 of the surgical device 100 based on a preset algorithm, the signal output power, and the electrocoagulation cutting time of the surgical device 100.

[0086] In some embodiments, determining the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state may include the following:

[0087] obtaining a signal output voltage of the signal adjustment circuit when the surgical device is in an electrocoagulation cutting state;

[0088] Based on the signal output voltage, the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state is determined; wherein the signal output power of the high-frequency generator device is positively correlated with the signal output voltage of the signal adjustment circuit.

[0089] The signal output voltage refers to the voltage of the electrocoagulation function switching signal.

[0090] For example, the signal output power of the high-frequency generator device 200 can be determined by the power of the induced signal output by the transformer T when the surgical device 100 is in the electrocoagulation cutting state and a preset algorithm. For example, if the power of the induced signal is high, the signal output power of the high-frequency generator device 200 is also high.

[0091] In addition, it can also be achieved based on the turns ratio of the primary side to the secondary side of the transformer T, which can be achieved by the following formula (1):

[0092] (1);

[0093] Among them, V out is the voltage of the transformer after passing through the rectifier circuit; V in is the RMS value of the voltage output by the high-frequency generator device; N is the turns ratio of the transformer, is the rectification coefficient, where Preferably 95%.

[0094] Specifically, after obtaining the voltage of the electrocoagulation function switching signal, the controller 50 can determine the voltage V of the DC induction signal output by the rectifier circuit 31 through the amplification factor of the amplifier circuit. out Thus, the RMS value of the voltage output by the high-frequency generator device 200 can be determined by the above formula (1), and then the signal output power of the high-frequency generator device 200 can be determined according to the RMS value of the voltage and the relationship between power and voltage.

[0095] Here, after the circuit is determined, the amplification factor of the amplifier circuit is fixed. If the voltage of the electrocoagulation function switching signal increases, the voltage V after the rectifier circuit increases. out Will also increase, combined with the above formula (1), if V out As the voltage increases, the RMS value of the voltage output by the high-frequency generator device 200 also increases, and thus the signal power output by the high-frequency generator device 200 also increases. That is, the signal power output by the high-frequency generator device 200 is positively correlated with the signal output voltage of the signal adjustment circuit 30.

[0096] See also Figure 7 and Figure 8In other embodiments, the operating end 101 is provided with a temperature sensor 1010, and the controller 50 is connected to the temperature sensor 1010. After the surgical device 100 switches from the electrocoagulation and cutting function to the nerve detection function, the controller 50 further detects the temperature of the operating end 101 via the temperature sensor 1010 and generates a prompt signal when the temperature of the operating end 101 drops to a preset temperature. The prompt signal is used to instruct the prompt device 60 to generate a prompt message to remind the user that the surgical device 100 is capable of performing nerve detection.

[0097] In the embodiment of the present disclosure, the temperature sensor 1010 is a temperature measuring thermocouple, and a filling material N is provided between the temperature sensor 1010 and the body M of the operating end 101 .

[0098] The following combination Figure 9 The specific implementation of each circuit in the function switching circuit 104 is introduced.

[0099] See also Figure 9 As shown, in the embodiment of the present disclosure, the rectifier circuit 31 is implemented by a rectifying bridge formed by the first diode D1 to the fourth diode D4. In other embodiments, the rectifier circuit 31 can also be implemented by a converter, wherein the converter can convert the root mean square (RMS) value of the AC signal into a DC voltage. Therefore, the converter is also called an RMS-to-DC converter.

[0100] The voltage stabilizing and amplitude limiting circuit 32 includes a capacitor C, a first resistor R1, a second resistor R2, a fifth diode D5, and a sixth diode D6. One end of the capacitor C is grounded, and the other end is connected to the output of the rectifier circuit 31. The cathode of the fifth diode D5 is connected to the output of the rectifier circuit 31 via the first resistor R1. The anode of the fifth diode D5 is grounded. The anode of the sixth diode D6 is connected between the cathode of the fifth diode D5 and the first resistor R1 via the second resistor R2. The cathode of the sixth diode D6 is grounded. In the disclosed embodiment, the fifth diode D5 is a voltage regulator diode.

[0101] The amplifier circuit 33 includes a third resistor R3, a fourth resistor R4, and an operational amplifier U. The non-inverting input terminal of the operational amplifier U is connected between the anode of the sixth diode D6 and the second resistor R2, the inverting input terminal of the operational amplifier U is connected to the power supply via the third resistor R3, and the inverting input terminal of the operational amplifier U is also grounded via the fourth resistor R4.

[0102] The driving switching circuit 40 includes a relay K, a first electronic switch Q1 , a second electronic switch Q2 , a seventh diode D7 , a fifth resistor R5 , and a sixth resistor R6 . The control terminal of the first electronic switch Q1 is connected to the output terminal of the operational amplifier U via a fifth resistor R5, the first connection terminal of the first electronic switch Q1 is connected to the power supply via a sixth resistor R6, and the second connection terminal of the first electronic switch Q1 is grounded. The control terminal of the second electronic switch Q2 is connected to the first connection terminal of the first electronic switch Q1, the first connection terminal of the second electronic switch Q2 is connected to the anode of the seventh diode D7, the cathode of the seventh diode D7 is connected to the power supply, and the second connection terminal of the second electronic switch Q2 is grounded. The relay K is a double-pole double-throw relay. Pin 1 of the relay K is connected to the first connection terminal of the second electronic switch Q2, pin 8 of the relay K is connected to the power supply, pin 2 and pin 7 are respectively connected to the electrocoagulation cutting connection terminal 102, and can therefore receive the high-frequency excitation signal output by the high-frequency generator device 200 through the electrocoagulation cutting connection terminal 102. Pin 4 and pin 5 are both connected to the nerve monitoring connection terminal 103, and can therefore receive the nerve stimulation signal output by the nerve monitor 300 through the nerve monitoring connection terminal 103. Pin 3 and pin 6 of the relay K are respectively connected to the operating terminal 101.

[0103] In this way, when the first electronic switch Q1 receives the electrocoagulation function switching signal (high-level signal) and is turned on, the second electronic switch Q2 is disconnected, pin 5 of the relay K is disconnected from pin 5 and connected to pin 7, pin 3 is disconnected from pin 4 and connected to pin 2, and the high-frequency excitation signal output by the high-frequency generator 200 can be transmitted to the operating end 101 through the driving switching circuit 40, thereby realizing the switching of the surgical equipment from the nerve detection function to the electrocoagulation cutting function.

[0104] In the disclosed embodiment, the first electronic switch Q1 is an NPN transistor, wherein the control terminal of the first electronic switch Q1 corresponds to the base of the NPN transistor, the first connection terminal of the first electronic switch Q1 corresponds to the collector of the NPN transistor, and the second connection terminal of the first electronic switch Q1 corresponds to the emitter of the NPN transistor. The second electronic switch Q2 is an N-type field-effect transistor, wherein the control terminal of the second electronic switch Q2 corresponds to the gate of the N-type field-effect transistor, the first connection terminal of the second electronic switch Q2 corresponds to the drain of the N-type field-effect transistor, and the second connection terminal of the second electronic switch Q2 corresponds to the source of the N-type field-effect transistor. In other embodiments, the first electronic switch Q1 and the second electronic switch Q2 may also be other types of transistors, without specific limitation.

[0105] In practical applications, the high-frequency generator device 200 can be connected to a foot switch. During a surgical procedure (e.g., thyroid surgery), when a user (e.g., a doctor) steps on the foot switch, the high-frequency excitation detection circuit 20 generates a sensing signal. The signal conditioning circuit 30 generates a coagulation function switching signal based on the sensing signal. The driver switching circuit 40 responds to this coagulation function switching signal to switch the surgical device 100 from the nerve detection function to the coagulation and cutting function. At this point, the surgical device 100 can perform both coagulation and cutting operations.

[0106] When the user (such as a doctor) releases the foot switch, the high-frequency excitation detection circuit 20 will not generate an induction signal, or will generate a weak induction signal. At this time, the signal adjustment circuit 30 will not generate an electrocoagulation function switching signal, and the drive switching circuit 40 does not receive the electrocoagulation function switching signal (receives a low-level signal), and switches the surgical device 100 from the electrocoagulation cutting function to the nerve detection function.

[0107] Under the nerve detection function, the stimulation current signal of the nerve monitoring instrument 300 will be transmitted to the tissue part that needs to be monitored through the operating end 101, and then the signal receiving needle electrode inserted into the subcutaneous tissue will transmit the electromyographic feedback signal generated by the tissue being stimulated by the current back to the nerve monitor 300. If the monitor screen does not display the nerve electromyographic waveform and the prompt sound of the vocal cord activity response is not heard, it can be considered that there are no nerves in the tissue of the detection area. At this time, the necessary surgical operations can be performed with confidence. If the nerve electromyographic waveform is seen and the electromyographic activity prompt sound is heard, it means that there are nerves passing through the tissue in this area, and the nerves need to be carefully separated and dissected to avoid nerve damage during the operation.

[0108] The control method of the surgical device provided by the embodiment of the present disclosure is described below.

[0109] The surgical device may be any of the surgical devices described in the preceding embodiments. Figure 10 As shown, the control method of the surgical device includes the following steps S101 to S103:

[0110] S101, when the surgical device is in the nerve detection function, the high-frequency excitation detection circuit is used to detect whether the high-frequency generator device outputs a high-frequency excitation signal, and generates a corresponding induction signal when the high-frequency excitation signal is detected.

[0111] S102: receiving the induction signal output by the high-frequency excitation detection circuit through the signal adjustment circuit, and adjusting the induction signal to obtain an electrocoagulation function switching signal.

[0112] Exemplarily, the sensing signal is an AC sensing signal, and the adjusting of the sensing signal to obtain the electrocoagulation function switching signal includes:

[0113] The AC induction signal is converted and amplified to obtain an amplified DC induction signal, and the amplified DC induction signal is the electrocoagulation function switching signal.

[0114] S103, responding to the electrocoagulation function switching signal through the driving switching circuit, disconnecting the nerve monitoring connection end from the operating end of the surgical device, and connecting the electrocoagulation cutting connection end to the operating end, so that the surgical device switches from the nerve detection function to the electrocoagulation cutting function.

[0115] In some embodiments, the method further comprises:

[0116] After the surgical device switches to the electrocoagulation cutting function, the drive switching circuit disconnects the electrocoagulation cutting connection end from the operating end and connects the nerve monitoring connection end to the operating end without receiving the electrocoagulation function switching signal, so that the surgical device switches from the electrocoagulation cutting function to the nerve detection function.

[0117] In some optional embodiments, the method further includes:

[0118] After the surgical device switches from the electrocoagulation and cutting function to the nerve detection function, starting timing, determining the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation and cutting state, and obtaining the electrocoagulation and cutting duration of the surgical device;

[0119] The target delay time is determined based on the signal output power and the electrocoagulation cutting time of the surgical device, and a prompt signal is generated after the timing time reaches the target delay time; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of performing nerve detection.

[0120] In some embodiments, determining the target delay time according to the signal output power and the electrocoagulation cutting time of the surgical device includes:

[0121] The temperature of the operating end of the surgical device is determined according to the signal output power and the electrocoagulation cutting time of the surgical device, and the target delay time is determined according to the temperature of the operating end.

[0122] In some embodiments, determining the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state includes:

[0123] obtaining a signal output voltage of the signal adjustment circuit when the surgical device is in an electrocoagulation cutting state;

[0124] Based on the signal output voltage, the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state is determined; wherein the signal output power of the high-frequency generator device is positively correlated with the signal output voltage of the signal adjustment circuit.

[0125] In some embodiments, the operating end is provided with a temperature sensor, and the method further comprises:

[0126] After the surgical device switches from the electrocoagulation cutting function to the nerve detection function, the temperature of the operating end is collected by the temperature sensor, and a prompt signal is generated when the temperature drops to a preset temperature; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of nerve detection.

[0127] It should be noted that the description and principles of the related elements involved in each step of the above method can be referred to the above hardware embodiment description, and will not be repeated here. In addition, the method can also include any steps or combinations involved in the device.

[0128] Those skilled in the art will understand that in the above-mentioned method of the specific implementation method, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0129] An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method for controlling the surgical device in the above method embodiment are executed.

[0130] An embodiment of the present disclosure also provides a computer program product, including a computer program / instruction, which, when executed by a processor of the computer program / instruction, implements a control method for a surgical device as provided in each embodiment of the present disclosure. For details, please refer to the above method embodiments, which will not be repeated here.

[0131] The computer program product may be implemented in hardware, software, or a combination thereof. In one embodiment, the computer program product is implemented as a computer storage medium. In another embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0132] The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired or wireless method. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0133] Those skilled in the art will readily appreciate that the embodiments of the principle block diagrams described above are merely illustrative. For example, the division of units described herein is merely a logical functional division, and actual implementations may employ different divisions. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units via some communication interface, and may be electrical, mechanical, or other.

[0134] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0135] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0136] If the functions are implemented as software functional units and sold or used as standalone products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure, or the portion that contributes to the prior art, or the portion of the technical solution itself, can be embodied in the form of a software product. This computer software product, stored in a storage medium, includes instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present disclosure. The aforementioned storage media include various media capable of storing program code, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0137] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The scope of protection of the present disclosure is not limited thereto. Although the present disclosure has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present disclosure, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of protection of the claims.

Claims

1. A surgical device with a nerve detection function, characterized in that: The surgical device includes an operating end, an electrocoagulation and cutting connection end, a nerve monitoring connection end, and a function switching circuit, wherein the function switching circuit is electrically connected to the electrocoagulation and cutting connection end, the nerve monitoring connection end, and the operating end respectively; the electrocoagulation and cutting connection end is used to connect to a high-frequency generator device, and the nerve monitoring connection end is used to connect to a nerve monitor; the function switching circuit includes: a high-frequency excitation detection circuit, connected to the electrocoagulation and cutting connection terminal, for detecting whether the high-frequency generator device outputs a high-frequency excitation signal when the surgical device is in the nerve detection function, and generating a corresponding induction signal when the high-frequency excitation signal is detected; a signal adjustment circuit, wherein an input end of the signal adjustment circuit is connected to the high-frequency excitation detection circuit, and is used to receive the induction signal output by the high-frequency excitation detection circuit, and to adjust the induction signal to obtain an electrocoagulation function switching signal; a drive switching circuit connected to the signal adjustment circuit, configured to disconnect the nerve monitoring connection terminal from the operating terminal and connect the electrocoagulation cutting connection terminal to the operating terminal in response to the electrocoagulation function switching signal, so that the surgical device switches from the nerve detection function to the electrocoagulation cutting function; In which, the high-frequency excitation detection circuit includes a transformer, the primary side of the transformer is connected to the electrocoagulation cutting connection end, and the secondary side of the transformer is connected to the signal adjustment circuit, so that when the high-frequency generator device is disconnected from the operating end of the surgical device and the surgical device is in the nerve detection function, the surgical device can recognize the high-frequency excitation signal emitted by the high-frequency generator device.

2. The surgical device according to claim 1, wherein: The signal adjustment circuit is connected to the secondary side of the transformer and is used to convert and amplify the AC induction signal output by the transformer to obtain an amplified DC induction signal. The amplified DC induction signal is the electrocoagulation function switching signal.

3. The surgical device according to claim 2, wherein: The signal adjustment circuit includes a rectifier circuit and an amplifier circuit. The rectifier circuit is connected to the secondary side of the transformer and is used to rectify the received AC induction signal to obtain a DC induction signal. The amplifier circuit is connected to the output end of the rectifier circuit and is used to amplify the DC induction signal to obtain the amplified DC induction signal.

4. The surgical device according to claim 3, wherein: The signal adjustment circuit also includes a voltage stabilization and amplitude limiting circuit; The voltage stabilizing and amplitude limiting circuit is connected between the rectifier circuit and the amplifier circuit, and is used to perform voltage stabilizing and amplitude limiting processing on the direct current induction signal.

5. The surgical device according to any one of claims 1 to 4, characterized in that: After the surgical device switches to the electrocoagulation cutting function, the drive switching circuit is also used to disconnect the electrocoagulation cutting connection end from the operating end and connect the nerve monitoring connection end to the operating end when the electrocoagulation function switching signal is not received, so that the surgical device switches from the electrocoagulation cutting function to the nerve detection function.

6. The surgical device according to claim 5, characterized in that The function switching circuit further includes a controller connected to the output end of the signal adjustment circuit; After the surgical device switches from the electrocoagulation and cutting function to the nerve detection function, the controller starts timing, and determines the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation and cutting state, and obtains the electrocoagulation and cutting time of the surgical device; The controller is also used to determine the target delay time based on the signal output power and the electrocoagulation cutting time of the surgical device, and generate a prompt signal after the timing time reaches the target delay time; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of nerve detection.

7. The surgical device according to claim 6, characterized in that The controller determines the temperature of the operating end of the surgical device according to the signal output power and the electrocoagulation cutting time of the surgical device, and determines the target delay time according to the temperature of the operating end.

8. The surgical device according to claim 6, wherein: The determining the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state includes: obtaining a signal output voltage of the signal adjustment circuit when the surgical device is in an electrocoagulation cutting state; Based on the signal output voltage, the signal output power of the high-frequency generator device when the surgical device is in the electrocoagulation cutting state is determined; wherein the signal output power of the high-frequency generator device is positively correlated with the signal output voltage of the signal adjustment circuit.

9. The surgical device according to claim 6, wherein: The operating end is provided with a temperature sensor, and the controller is connected to the temperature sensor; After the surgical device switches from the electrocoagulation cutting function to the nerve detection function, the controller is also used to collect the temperature of the operating end through the temperature sensor, and generate a prompt signal when the temperature drops to a preset temperature; the prompt signal is used to instruct the prompt device to generate prompt information to prompt the user that the surgical device is capable of nerve detection.

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