A neuro-monitoring electrocoagulation cutter for use with a tracheal tube

Abstract

The application discloses a nerve monitoring and electrocoagulation cutter used in cooperation with a trachea cannula, which comprises a shell, a bipolar electrocoagulation forceps, a nerve detection electrode arranged between two forceps arms of the bipolar electrocoagulation forceps and a control device. The control device is used for driving the nerve detection electrode to move between an extended position and a retracted position. When the nerve detection electrode is in the extended position, the detection end of the nerve detection electrode is extended to the front of the electrode tip, and the control device prevents the electrode tip from closing; when the nerve detection electrode is in the retracted position, the detection end of the nerve detection electrode is retracted to the back of the electrode tip, and at this time, the electrode tip can be closed. The application integrates the functions of nerve detection and electrocoagulation into one, and realizes mechanical interlocking by using the control device: the electrocoagulation forceps cannot be closed when detecting, and the detection electrode is retracted when electrocoagulating. The design mechanically ensures that the two operations cannot be performed at the same time, simplifies the operation process and improves the safety of the operation.

Description

Technical Field

[0001] This application relates to the field of medical devices, specifically to a nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation. Background Technology

[0002] As a core piece of equipment used in surgical procedures for cutting tissue and electrocoagulating hemostasis, the electrocoagulation cutter is increasingly widely used in various surgical procedures with the continuous development of medical technology. Especially in delicate surgical fields such as neurosurgery, otolaryngology, and thyroid surgery, bipolar electrocoagulation forceps, with their characteristics of high-frequency current flowing only between the two tips, highly concentrated energy, and minimal thermal damage to surrounding tissues, have gained high favor among surgeons, providing crucial support for the performance of delicate surgeries and playing a key role in ensuring surgical safety and improving surgical outcomes.

[0003] In current surgical procedures, to avoid damage to critical nerve bundles during electrocoagulation, a nerve monitoring system is typically introduced clinically. Surgeons use a separate nerve monitoring probe to emit low-frequency stimulation pulses and use electromyographic feedback to locate and assess the "health status" of the nerves in real time. During the procedure, surgeons frequently switch between the nerve monitoring probe and bipolar electrocoagulation forceps, first using the probe to probe and determine a safe area before switching to the bipolar forceps. This approach ensures surgical safety to a certain extent, but it also introduces some additional problems.

[0004] However, the existing operating method has significant drawbacks. The procedure is cumbersome because doctors need to frequently switch between the "nerve monitoring probe" and the "bipolar electrocoagulation forceps." Furthermore, even slight hand displacement or pulsation in the surgical field during instrument switching can easily cause the operating point to deviate from the previously confirmed safe probe point, resulting in accidental nerve damage and serious consequences for the patient. Summary of the Invention

[0005] To address the technical problems in the prior art, this application provides a nerve monitoring electrocoagulation cutter for use with endotracheal intubation.

[0006] The present application provides a nerve monitoring electrocoagulation cutter for use with endotracheal intubation, which adopts the following technical solution:

[0007] A nerve monitoring electrocoagulation cutter for use with endotracheal intubation, comprising:

[0008] case;

[0009] Bipolar electrocoagulation forceps, the bipolar electrocoagulation forceps including two relatively movable forceps arms extending from the housing, the forceps arms being provided with an insulating layer, and the ends of the forceps arms being respectively provided with electrode tips;

[0010] A neural detection electrode is disposed between the two tweezer arms and is electrically insulated from the tweezer arms.

[0011] A control device, connected to the neural detection electrode, is used to drive the neural detection electrode to move between an extended position and a retracted position; wherein, when the neural detection electrode is in the extended position, its detection end extends in front of the two electrode tips, and the control device prevents the two electrode tips from closing; when the neural detection electrode is in the retracted position, its detection end retracts behind the two electrode tips, and the two electrode tips can close to clamp tissue.

[0012] In some embodiments, the control device includes a movable block fixedly connected to the neural detection electrode, and a pull block for operating the movable block.

[0013] In some embodiments, the control device further includes a limiting portion disposed on the movable block, wherein when the neural detection electrode is in the extended position, the limiting portion is positioned between the two tweezer arms to prevent the electrode tip from closing.

[0014] In some embodiments, the end of the neural detection electrode away from its detection end is provided with a telescopic hole;

[0015] The nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation also includes a central shaft, one end of which is fixed to the housing, and the other end of which is slidably inserted into the telescopic hole.

[0016] In some embodiments, a first locking hole and a second locking hole are provided on the central shaft;

[0017] The movable block has an installation groove for fixing an elastic clamping member. The elastic clamping member has an extendable or retractable clamping end. When the neural detection electrode is in the extended position, the clamping end is engaged in the first clamping hole. When the neural detection electrode is in the retracted position, the clamping end is engaged in the second clamping hole.

[0018] In some embodiments, the elastic locking member includes a slider, a spring, and a locking ball. The slider is slidably disposed in the mounting groove. One end of the spring is connected to the inner wall of the mounting groove, and the other end of the spring is connected to one end of the slider. The locking ball is fixed to the other end of the slider. When the neural detection electrode is in the extended position, the locking ball is engaged in the first locking hole. When the neural detection electrode is in the retracted position, the locking ball is engaged in the second locking hole.

[0019] In some embodiments, the housing is provided with a wire harness integrator for consolidating the circuit connections of the bipolar electrocoagulation forceps and the nerve detection electrodes, and for connecting to an external high-frequency electrocoagulation generator and a nerve monitoring system, respectively.

[0020] In some embodiments, the nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation further includes a circuit control system; the circuit control system is configured to: when the nerve detection electrode is in the extended position, connect the circuit between the nerve detection electrode and the nerve monitoring system, and disconnect the circuit between the bipolar electrocoagulation forceps and the high-frequency electrocoagulation generator;

[0021] When the nerve detection electrode is in the retracted position, the circuit between the nerve detection electrode and the nerve monitoring system is disconnected, and the circuit between the bipolar electrocoagulation forceps and the high-frequency electrocoagulation generator is connected.

[0022] In some embodiments, the circuit control system includes a multiplexer driven by the control device;

[0023] When the control device moves, it drives the multiplexer to switch the circuit between on and off states.

[0024] In some embodiments, an active safety feedback module is also included; the active safety feedback module is configured to, when the neural probe electrode is in the retracted position and the bipolar electrocoagulation forceps are connected to the circuit of the high-frequency electrocoagulation generator:

[0025] (a) Real-time monitoring of the electromyographic feedback signal SEMG(t) from the neural monitoring system;

[0026] (b) The electromyographic feedback signal SEMG(t) is processed to detect whether there is an unexpected neural stimulation response SRESp induced in the SEMG(t) by the high-frequency current IHF(t) output by the high-frequency electrocoagulation generator, wherein the neural stimulation response SRESp is determined by calculating the time correlation between the electromyographic feedback signal SEMG(t) and the pulse envelope Env(IHF(t)) of the high-frequency current IHF(t);

[0027] (c) When the value of SREsp exceeds a preset safety threshold SThresh, the active safety feedback module immediately sends a suppression command to the high-frequency electrocoagulation generator to interrupt the output of the high-frequency current IHF(t).

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The nerve monitoring and electrocoagulation cutting functions are integrated into one unit, and mechanical interlocking is achieved through a control device. When the nerve detection electrode is in the extended position, the electrode tip of the electrocoagulation forceps is prevented from closing, thus avoiding electrocoagulation operation while probing the nerve from a physical structure perspective. When the electrode is retracted, the electrocoagulation forceps can be closed for electrocoagulation. This design solves the problem of doctors having to frequently switch instruments, simplifies the surgical procedure, and avoids accidental nerve injury caused by instrument displacement during switching.

[0030] 2. By setting up a circuit control system linked to the control device, electrical safety interlocking is achieved. In detection mode (electrode extended), the system automatically connects the nerve monitoring circuit and disconnects the electrocoagulation circuit; in electrocoagulation mode (electrode retracted), it automatically disconnects the nerve monitoring circuit and connects the electrocoagulation circuit. This provides a second layer of electrical safety protection independent of the mechanical interlock, ensuring safe switching between the two functional modes.

[0031] 3. By setting up an active safety feedback module, the electromyographic feedback signal can be monitored in real time during the electrocoagulation operation. The algorithm is used to analyze whether the high-frequency electrocoagulation current has unexpectedly induced nerve stimulation. When an unexpected nerve stimulation response is detected to exceed the safety threshold, the module can immediately interrupt the high-frequency current output and actively cut off the source of danger, thereby providing the highest level of surgical safety protection before permanent nerve damage occurs.

[0032] 4. By setting an elastic locking element on the moving block and making the locking element cooperate with the first and second locking holes on the central shaft, when the nerve detection electrode is in the extended or retracted position, the locking element is locked into the corresponding locking hole, realizing the stable switching between the two working modes and providing clear tactile feedback to the operator. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation, according to an embodiment of this application;

[0034] Figure 2 yes Figure 1 A top view of a nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation.

[0035] Figure 3 yes Figure 2 A cross-sectional view along line AA shows the nerve detection electrodes in the extended position;

[0036] Figure 4 yes Figure 3 A magnified view of part B in the middle section;

[0037] Figure 5This is a three-dimensional structural diagram of the nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation, provided in an embodiment of this application, when the nerve detection electrode is in the retracted position;

[0038] Figure 6 yes Figure 5 A magnified view of part C in the middle;

[0039] Figure 7 This is a cross-sectional view of a nerve monitoring electrocoagulation cutter used in conjunction with endotracheal intubation according to an embodiment of this application, showing the nerve detection electrode in the retracted position;

[0040] Figure 8 This is a schematic diagram of the combined application of the nerve monitoring electrocoagulation cutter and the nerve monitoring endotracheal tube in the nerve monitoring surgical system of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Bipolar electrocoagulation forceps; 21. Forceps arm; 211. Insulating layer; 212. Electrode tip; 3. Nerve detection electrode; 31. Detection end; 32. Telescopic hole; 4. Control device; 41. Moving block; 411. Limiting part; 412. Mounting groove; 42. Pulling block; 43. Elastic clamping element; 431. Slider; 432. Spring; 433. Clamping ball; 5. Central shaft; 51. First clamping hole; 52. Second clamping hole; 6. Wire harness integrator; 7. Nerve monitoring endotracheal tube; 8. High-frequency electrocoagulation generator; 9. Nerve monitoring system; 10. Active safety feedback module. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0043] Please refer to Figures 1-8 This application mainly integrates nerve monitoring and electrocoagulation cutting functions to achieve safety interlocking and active feedback, thereby avoiding nerve injury, simplifying the operation process, and improving surgical safety. The following is a further detailed description of this application.

[0044] The nerve monitoring electrocoagulation cutter provided in this embodiment of the application, used in conjunction with endotracheal intubation, includes a housing 1, bipolar electrocoagulation forceps 2, nerve detection electrodes 3, and a control device 4. The control device 4 can drive the nerve detection electrodes 3 to move between an extended position and a retracted position. When the nerve detection electrodes 3 are in the extended position, their detection end 31 extends in front of the two electrode tips 212, and the control device 4 prevents the two electrode tips 212 from closing. When the nerve detection electrodes 3 are in the retracted position, their detection end 31 retracts behind the two electrode tips 212, and the two electrode tips 212 can close to clamp the tissue. This achieves the effect of avoiding nerve damage caused by electrocoagulation operation during nerve detection, while facilitating electrocoagulation hemostasis operation after confirming safety. This is because the design of the control device 4 can mechanically ensure that nerve detection and electrocoagulation cutting operations are not performed simultaneously, thereby improving the safety of the surgery.

[0045] For details, please refer to Figure 3 The bipolar electrocoagulation forceps 2 includes two relatively movable forceps arms 21 extending from the housing 1. The forceps arms 21 are typically made of metal, such as stainless steel, which has good conductivity and strength to meet the needs of surgical procedures. Of course, other metal alloys with similar properties can also be used. The forceps arms 21 are provided with an insulating layer 211, which is generally made of a biocompatible insulating material, such as polytetrafluoroethylene (PTFE), effectively preventing current leakage and reducing unnecessary irritation to surrounding tissues. The ends of the forceps arms 21 are respectively provided with electrode tips 212, which are exposed to achieve the electrocoagulation cutting function. Their shape is usually sharp for precise application to tissue.

[0046] The neural detection electrode 3 is positioned between the two forceps arms 21 and is electrically insulated from them. The neural detection electrode 3 can have a needle-like structure, allowing for more precise delivery of low-frequency stimulation pulses. It can be made of a platinum-iridium alloy, which possesses good conductivity and chemical stability, ensuring accurate neural detection. To achieve electrical insulation, an insulating sleeve or coating can be placed between the neural detection electrode 3 and the forceps arms 21.

[0047] Please refer to Figures 1-6 The control device 4 includes a movable block 41 fixedly connected to the nerve detection electrode 3, and a puller 42 for operating the movable block 41. The movable block 41 is generally made of plastic, such as polycarbonate, which has a certain strength and is lightweight, making it easy to operate. The puller 42 can be designed into a shape suitable for finger operation, such as a block structure with grooves, making it convenient for doctors to push or pull with their fingers. The movable block 41 and the nerve detection electrode 3 can be fixed together by welding or bolting to ensure that the two can move synchronously.

[0048] Please refer to Figure 4The control device 4 also includes a limiting part 411, which is disposed on the moving block 41. The limiting part 411 can be a protruding block structure. When the neural detection electrode 3 is in the extended position, the limiting part 411 is positioned between the two tweezer arms 21 to prevent the electrode tip 212 from closing. The limiting part 411 can be made of the same material as the moving block 41 and can be manufactured by integral molding to ensure the stability of its structure.

[0049] Please refer to Figure 3 and Figure 4 The nerve detection electrode 3 has a telescopic hole 32 at its end furthest from its detection end 31. The nerve monitoring electrocoagulation cutter used in conjunction with the endotracheal tube also includes a central shaft 5. One end of the central shaft 5 is fixed to the housing 1, and the other end is slidably inserted into the telescopic hole 32. The central shaft 5 is typically made of metal, such as aluminum alloy, which has good strength and rigidity, providing stable support for the movement of the nerve detection electrode 3. A clearance fit can be used between the telescopic hole 32 and the central shaft 5 to ensure smooth sliding of the nerve detection electrode 3 on the central shaft 5.

[0050] Please refer to Figure 3 , Figure 4 and Figure 7 The central shaft 5 has a first locking hole 51 and a second locking hole 52. The movable block 41 has a mounting groove 412, in which an elastic locking member 43 is fixedly installed. The elastic locking member 43 has a locking end that can extend or retract, and the locking end is used to lock into the first locking hole 51 or the second locking hole 52. The elastic locking member 43 includes a slider 431, a spring 432 and a locking ball 433. The slider 431 is slidably disposed in the mounting groove 412. One end of the spring 432 is connected to the inner wall of the mounting groove 412, and the other end of the spring 432 is connected to one end of the slider 431. The locking ball 433 is fixed to the other end of the slider 431 and is used to lock into the first locking hole 51 or the second locking hole 52. Specifically, when the neural detection electrode 3 is in the extended position, the locking end (or locking ball 433) engages with the first locking hole 51; when the neural detection electrode 3 is in the retracted position, the locking end (or locking ball 433) engages with the second locking hole 52. The slider 431 can be made of plastic to reduce friction with the mounting groove 412. The spring 432 is generally made of stainless steel, which has good elasticity and corrosion resistance. The locking ball 433 can be made of hard alloy to ensure it is firmly engaged in the locking hole. When the pull block 42 is pushed to move the neural detection electrode 3, the spring 432 compresses or stretches, causing the locking ball 433 to switch between the first locking hole 51 and the second locking hole 52, achieving stable mode switching and providing clear tactile feedback.

[0051] Please refer to Figure 1 ,Figure 2 and Figure 3 The housing 1 is equipped with a wire harness integrator 6, which is used to integrate the circuit connections of the bipolar electrocoagulation forceps 2 and the nerve detection electrodes 3, and to connect them to an external high-frequency electrocoagulation generator and a nerve monitoring system, respectively. The wire harness integrator 6 can adopt a modular design for easy circuit connection and maintenance. Its outer shell is generally made of plastic, which serves to insulate and protect the internal circuitry.

[0052] This embodiment also includes a circuit control system configured to: when the nerve detection electrode 3 is in the extended position, connect the circuit between the nerve detection electrode 3 and the nerve monitoring system, and disconnect the circuit between the bipolar electrocoagulation forceps 2 and the high-frequency electrocoagulation generator; when the nerve detection electrode 3 is in the retracted position, disconnect the circuit between the nerve detection electrode 3 and the nerve monitoring system, and connect the circuit between the bipolar electrocoagulation forceps 2 and the high-frequency electrocoagulation generator. The circuit control system includes a multiplexer driven by a control device 4. When the control device 4 moves, it drives the multiplexer to switch the on and off states of the circuit. The multiplexer can be a double-pole double-throw switch, with its switch handle mechanically linked to the moving block 41 of the control device 4, achieving automatic circuit switching and providing a second layer of electrical safety protection independent of mechanical interlocking.

[0053] This embodiment also includes an active safety feedback module, which is configured to, when the nerve probe electrode 3 is in the retracted position and the bipolar electrocoagulation forceps 2 is connected to the circuit of the high-frequency electrocoagulation generator:

[0054] (a) Real-time monitoring of electromyographic feedback signals S from the neural monitoring system EMG (t);

[0055] (b) and execute an algorithm to detect the S EMG Does (t) contain a high-frequency current I output by the high-frequency electrocoagulation generator? HF (t) The unexpected neural stimulus response S Resp , wherein the neural stimulation response S Resp By calculating the S EMG (t) signal and the high-frequency current I HF The pulse envelope of (t) Env(I) HF The time correlation between (t) is used to determine this:

[0056] S Resp = Corr(S EMG (t), Env(I HF (t)));

[0057] (c) When the S Resp The value exceeds a preset safety threshold S ThreshAt that time, the active safety feedback module immediately sends a suppression command to the high-frequency electrocoagulation generator to interrupt the high-frequency current I. HF The output of (t).

[0058] The active safety feedback module can be integrated into the nerve monitoring system or used as a separate processor connecting the high-frequency electrocoagulation generator and the nerve monitoring system. It can actively cut off the source of danger before the nerve is permanently damaged due to heat accumulation, thereby achieving the highest level of surgical safety protection.

[0059] Please refer to Figure 8 The neuro-monitoring electrocoagulation cutter provided in this embodiment is particularly suitable for surgical procedures requiring intraoperative neurological monitoring, such as thyroid and ENT surgeries. In these applications, the electrocoagulation cutter is used in conjunction with the neuro-monitoring endotracheal tube 7 to form a complete neuro-monitoring surgical system.

[0060] Electrodes on the neuromonitoring endotracheal cannula 7 are used to continuously monitor the electromyographic signals (SEMG(t)) of the recurrent laryngeal nerve and transmit the signals to the neuromonitoring system 9. The electrocoagulation cutter is connected to the high-frequency electrocoagulation generator 8 and the neuromonitoring system 9 via a wiring harness integrator 6. The active safety feedback module 10 (which can be integrated into the external neuromonitoring system 9 or used as a standalone processor) receives the SEMG(t) signal from the neuromonitoring endotracheal cannula 7 in real time during the electrocoagulation operation. When the module 10 detects that the unexpected nerve stimulation response induced by the high-frequency current generated by the cutter exceeds a safety threshold, it immediately sends an inhibition command to the high-frequency electrocoagulation generator 8, interrupting the current output.

[0061] This combined mechanism enables the cutting instrument to perform precise operations and local probing within the surgical field, while the endotracheal tube provides continuous, global neurological monitoring in the larynx. The two are linked through an electronic system, which enhances the level of neuroprotection.

[0062] The implementation principle of this embodiment is as follows: This nerve monitoring electrocoagulation cutter achieves a safety interlock between nerve detection and electrocoagulation cutting functions through the mechanical control device 4 and the electrical circuit control system, avoiding nerve damage caused by possible misoperation by the doctor during operation. Simultaneously, the active safety feedback module can monitor in real time and actively interrupt electrocoagulation upon detecting unexpected nerve stimulation, further improving surgical safety. Compared to traditional surgical methods, this invention simplifies the operation process, reduces surgical time, allows doctors to focus more on surgical anatomy, and provides a more reliable guarantee for delicate surgeries.

[0063] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of this application.

Claims

1. A nerve monitoring electrocoagulation cutter for use with endotracheal intubation, characterized in that, include: Shell (1); Bipolar electrocoagulation tweezers (2), the bipolar electrocoagulation tweezers (2) includes two relatively movable tweezer arms (21) extending from the housing (1), the tweezer arms (21) are provided with an insulating layer (211), and the ends of the tweezer arms (21) are respectively provided with electrode tips (212); A neural detection electrode (3) is disposed between the two tweezer arms (21) and electrically insulated from the tweezer arms (21); A control device (4) is connected to the neural detection electrode (3) and is used to drive the neural detection electrode (3) to move between an extended position and a retracted position. The control device (4) includes a moving block (41) fixedly connected to the neural detection electrode (3) and a pull block (42) for operating the moving block (41). The control device (4) also includes a limiting part (411) disposed on the moving block (41). When the neural probe electrode (3) is in the extended position, its probe end (31) extends in front of the two electrode tips (212), and the limiting part (411) is positioned between the two forceps arms (21) to prevent the two electrode tips (212) from closing; when the neural probe electrode (3) is in the retracted position, its probe end (31) retracts behind the two electrode tips (212), and the two electrode tips (212) can close to clamp the tissue.

2. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 1, characterized in that, The nerve detection electrode (3) has a telescopic hole (32) at one end away from its detection end (31); The nerve monitoring electrocoagulation cutter used in conjunction with the endotracheal tube also includes a central shaft (5), one end of which is fixed to the housing (1), and the other end of which is slidably inserted into the telescopic hole (32).

3. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 2, characterized in that, The central shaft (5) is provided with a first locking hole (51) and a second locking hole (52); the movable block (41) is provided with a mounting groove (412), and the mounting groove (412) is used to fix an elastic clamping member (43). The elastic clamping member (43) has a clamping end that can extend or retract. When the nerve detection electrode (3) is in the extended position, the clamping end is engaged in the first locking hole (51). When the nerve detection electrode (3) is in the retracted position, the clamping end is engaged in the second locking hole (52).

4. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 3, characterized in that, The elastic locking component (43) includes a slider (431), a spring (432), and a locking ball (433). The slider (431) is slidably disposed in the mounting groove (412). One end of the spring (432) is connected to the inner wall of the mounting groove (412), and the other end of the spring (432) is connected to one end of the slider (431). The locking ball (433) is fixed to the other end of the slider (431). When the nerve detection electrode (3) is in the extended position, the locking ball (433) is locked into the first locking hole (51). When the nerve detection electrode (3) is in the retracted position, the locking ball (433) is locked into the second locking hole (52).

5. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 1, characterized in that, The housing (1) is provided with a wire harness integrator (6) for integrating the circuit connections of the bipolar electrocoagulation forceps (2) and the nerve detection electrode (3), and for connecting to an external high-frequency electrocoagulation generator and a nerve monitoring system, respectively.

6. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 5, characterized in that, It also includes a circuit control system configured to: when the nerve detection electrode (3) is in the extended position, connect the circuit between the nerve detection electrode (3) and the nerve monitoring system, and disconnect the circuit between the bipolar electrocoagulation forceps (2) and the high-frequency electrocoagulation generator; when the nerve detection electrode (3) is in the retracted position, disconnect the circuit between the nerve detection electrode (3) and the nerve monitoring system, and connect the circuit between the bipolar electrocoagulation forceps (2) and the high-frequency electrocoagulation generator.

7. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 6, characterized in that, The circuit control system includes a multiplexer driven by the control device (4); When the control device (4) moves, it drives the multiplexer to switch the circuit between the nerve detection electrode (3) and the nerve monitoring system, as well as the circuit between the bipolar electrocoagulation forceps (2) and the high-frequency electrocoagulation generator, to switch between on and off states.

8. The nerve monitoring electrocoagulation cutter for use with endotracheal intubation as described in claim 6, characterized in that, It also includes an active safety feedback module; the active safety feedback module is configured to, when the neural probe electrode (3) is in the retracted position and the bipolar electrocoagulation forceps (2) is connected to the circuit of the high-frequency electrocoagulation generator: (a) Real-time monitoring of the electromyographic feedback signal SEMG(t) from the neural monitoring system; (b) The electromyographic feedback signal SEMG(t) is processed to detect whether there is an unexpected neural stimulation response SRESp induced in the SEMG(t) by the high-frequency current IHF(t) output by the high-frequency electrocoagulation generator, wherein the neural stimulation response SRESp is determined by calculating the time correlation between the electromyographic feedback signal SEMG(t) and the pulse envelope Env(IHF(t)) of the high-frequency current IHF(t); (c) When the value of SREsp exceeds a preset safety threshold SThresh, the active safety feedback module immediately sends a suppression command to the high-frequency electrocoagulation generator to interrupt the output of the high-frequency current IHF(t).

Images