A device for determining the effect of intraoperative trigeminal neuralgia decompression

Abstract

The application discloses a device for judging the decompression effect of intraoperative trigeminal neuralgia, and relates to the technical field of medical monitoring devices, comprising a forceps body, a collection probe is arranged at the tip of the forceps body, a wiring box is arranged on the side of the forceps body away from the collection probe, a distance adjusting mechanism and an auxiliary center positioning mechanism are arranged between the wiring box and the forceps body, the forceps body with adjustable spacing and the distance adjusting mechanism are arranged, the flexible adjustment of the spacing of the collection probe is achieved, the overall signal of the ganglion segment can be detected by increasing the spacing, the smaller nerve area can be focused by reducing the spacing, the signal difference under different spacings is compared, the compression point is accurately positioned, blind decompression is avoided, the auxiliary center positioning mechanism is arranged, the center point of the forceps body and the corresponding position of the collection probe are quickly positioned, the medical staff accurately aims at the trigeminal nerve to be detected, the positioning deviation is avoided, the collection signal is not inaccurate, the trigeminal neuralgia clustering neural network algorithm is combined, a visual distribution view is generated, and the accuracy of decompression effect judgment and the operation efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of medical monitoring device technology, specifically to a device for determining the decompression effect of trigeminal neuralgia during surgery. Background Technology

[0002] Trigeminal neuralgia is a common cranial nerve disorder. Its pathogenesis is often related to factors such as vascular compression of the trigeminal nerve and abnormalities in the nerve sheath. Surgical decompression is frequently used in clinical treatment to relieve nerve compression and alleviate pain symptoms. Accurate assessment of the decompression effect during surgery is crucial for surgical success and directly determines the patient's postoperative recovery and the degree of pain relief.

[0003] Currently, the clinical assessment of decompression effectiveness in trigeminal neuralgia surgery mainly relies on the experience of medical staff or the use of traditional potential acquisition devices for signal detection. However, traditional devices have significant drawbacks. On the one hand, the spacing between the acquisition probes cannot be flexibly adjusted, making it difficult to simultaneously detect the overall signal of the nerve segment and accurately locate the local compression point, which can easily lead to incomplete signal acquisition and deviation in the location of the compression point. On the other hand, the lack of effective auxiliary positioning mechanisms makes it difficult for the acquisition probes to quickly and accurately align with the nerve area to be tested, resulting in inaccurate signal acquisition and affecting the reliability of the decompression effect assessment. At the same time, the operation process of traditional devices is cumbersome, and there are delays in the acquisition, processing, and feedback of potential signals, which cannot provide medical staff with real-time guidance on the decompression effect, easily leading to blind decompression, increasing surgical risks and the incidence of postoperative complications in patients.

[0004] Therefore, developing an intraoperative trigeminal neuralgia decompression effect assessment device that can accurately locate the compression point, flexibly adjust the acquisition interval, provide real-time feedback on the decompression effect, and is easy to operate has become an urgent technical problem to be solved in current clinical surgery. Summary of the Invention

[0005] This invention provides a device for determining the decompression effect of trigeminal neuralgia during surgery. It can effectively solve the problems mentioned in the background art, such as the inflexible adjustment of the spacing of the acquisition probe, the difficulty in simultaneously detecting the overall signal of the nerve segment and accurately locating the local compression point, the incomplete signal acquisition, the deviation in the location of the compression point, and the difficulty in quickly and accurately aligning the acquisition probe with the nerve area to be detected, which leads to inaccurate signal acquisition and thus affects the reliability of the decompression effect determination.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for determining the decompression effect of trigeminal neuralgia during surgery, comprising forceps, a acquisition probe disposed at the tip of the forceps, a junction box disposed on the side of the forceps away from the acquisition probe, and an adjustment mechanism and an auxiliary center positioning mechanism disposed between the junction box and the forceps. The distance adjustment mechanism includes a mounting cavity on the junction box, with symmetrically arranged sliding grooves in the mounting cavity. Synchronizing blocks are symmetrically slidably arranged in each sliding groove. The synchronizing blocks are fixedly connected to the tweezers. A driving assembly is arranged around the tweezers. The driving assembly is used to drive the tweezers to move in opposite directions or towards each other. The distance adjustment mechanism is used to adjust the distance between the tweezers and compare the signal differences under different distances by a data acquisition probe to locate the precise position of the pressure point and determine the pressure relief effect. The auxiliary center positioning mechanism includes a bonding cylinder fixedly installed on one side of the junction box. Laser positioning lights are symmetrically fixedly installed on the bonding cylinder. The laser positioning lights are turned on and off by a driving component. The auxiliary center positioning mechanism is used to quickly locate the center point of the tweezers and determine the decompression position.

[0007] Preferably, a signal transmission line is provided inside the junction box, and a signal connection line is installed and connected to one side of the junction box. The signal connection line and the signal transmission line are interconnected, and one end of the signal connection line is connected to a signal acquisition device and a signal transmission device, respectively.

[0008] Preferably, the drive assembly includes a fixed cylinder fixedly disposed on one side of the junction box, a rotating groove is provided on one side of the junction box, a rotating ring is rotatably disposed in the rotating groove, a connecting ring is fixedly disposed on one side of the rotating ring, the inner wall of the connecting ring is rotatably connected to the outer surface of the fixed cylinder, and a serrated synchronization ring is fixedly disposed on the outer surface of the connecting ring.

[0009] Preferably, the junction box is symmetrically and fixedly provided with a fixed guide rail on the side near the tweezers body, and a connecting block is slidably provided on each of the fixed guide rails, and the connecting block is fixedly connected to the opposite side of the tweezers body.

[0010] Preferably, a synchronizing ring is rotatably provided on the inner wall of the fixed cylinder, and a through arc-shaped groove is symmetrically provided on the synchronizing ring, with a push rod slidably provided on the inner wall of the through arc-shaped groove.

[0011] Preferably, the push rod is fixedly connected to the connecting block, and a limit block is fixedly provided on the side of the push rod away from the connecting block.

[0012] Preferably, the fixed cylinder is provided with symmetrical arc-shaped movable grooves, and each arc-shaped movable groove is provided with an arc-shaped block. The arc-shaped block is fixedly connected to the synchronization ring. A limit groove is provided on the arc-shaped block, and a translation block is slidably arranged in the limit groove. The translation block is fixedly connected to the connecting ring.

[0013] Preferably, the auxiliary center positioning mechanism further includes a spring groove provided on the fitting cylinder, a telescopic spring is provided in the spring groove, a compression ring is provided on one side of the telescopic spring, and the side of the compression ring away from the telescopic spring is fixedly connected to the connecting ring. The outer surface of the extrusion ring is attached to the inner wall of the spring groove. An energized electromagnetic coil is fixedly installed on the outer surface of the extrusion ring. An external power source is connected to the energized electromagnetic coil. A contact is provided on one side of the energized electromagnetic coil. The contact is fixedly installed on the bonding cylinder and is connected to the laser positioning light.

[0014] Preferably, it further includes an algorithm processing module for receiving neural potential signals acquired by the acquisition probe, the algorithm processing module comprising: The MCU processing unit is used to process the acquired signals; The host computer analysis unit is used to receive the signal processed by the MCU, perform filtering, amplification and preprocessing, and use neural network classification algorithm to process the preoperative and intraoperative potential signals, and output the decompression effect evaluation conclusion. Neural network classification algorithms include the following steps: S1. Read multi-channel potential signals before and during surgery; S2. Perform bandpass filtering on the signal; S3. Extract time-domain and frequency-domain features; S4. Calculate the differences in characteristics between intraoperative and preoperative procedures; S5. Standardize the differential characteristics and group patients using KMeans clustering; S6. Output the clustering results and feature importance, and save them to the data recording system.

[0015] Preferably, the host computer analysis unit displays the decompression effect evaluation conclusion to medical staff in real time through a signal transmission device for real-time guidance of intraoperative decompression operation; The algorithm processing module further includes a PCA dimensionality reduction and visualization module, which is used to reduce the dimensionality of the clustering results and generate a visual distribution map so that medical staff can intuitively observe the decompression effect during the operation. The algorithm processing module works in conjunction with the tweezers adjustment mechanism and the auxiliary center positioning mechanism to prompt medical staff to adjust the distance between the acquisition probes or the laser positioning status based on real-time analysis results, so as to optimize the accuracy of decompression effect determination.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves the effect of flexibly adjusting the spacing of the acquisition probes by setting an adjustable forceps body and a spacing adjustment mechanism. It can increase the spacing to detect the overall signal of the nerve segment and determine whether there is compression of the trigeminal nerve in that segment, or decrease the spacing to focus on a smaller nerve area, compare the signal differences under different spacings, and accurately locate the compression point (the area with the most significant abnormal signal amplitude and prolonged latency). This avoids blind decompression and improves the accuracy of decompression surgery. This invention achieves stable and precise adjustment of the acquisition probe spacing through the cooperation of the synchronization block, slide, drive component, and fixed guide rail in the distance adjustment mechanism. This avoids deviation during the movement of the tweezers and ensures that the acquisition probe can always be accurately aligned with the target nerve region, laying the foundation for stable acquisition of potential signals and improving the accuracy of signal acquisition.

[0017] This invention, by setting up an auxiliary central positioning mechanism, uses the laser beam emitted by the laser positioning lamp to form a cross intersection point, achieving the effect of quickly locating the center point of the forceps and the corresponding position of the acquisition probe. This helps medical staff to accurately align the trigeminal nerve to be tested area, avoid inaccurate signal acquisition due to positioning deviation, and improve the accuracy of decompression effect determination and surgical efficiency. This invention achieves simplified operation procedures and improved surgical convenience through the linkage control of the auxiliary center positioning mechanism and the distance adjustment mechanism, with the help of the telescopic spring, the compression ring, the energized electromagnetic coil and the contact points. It also realizes the opening and closing of the laser positioning light and avoids unnecessary interference of the laser with the surgical field of vision.

[0018] This invention achieves the effect of real-time acquisition and processing of potential signals and feedback of decompression effect evaluation conclusions by coordinating a acquisition probe, signal transmission line, signal acquisition device, MCU and host computer. This allows medical staff to monitor the decompression status in real time, adjust the surgical plan in a timely manner, reduce surgical risks, and improve the success rate of surgery and the postoperative recovery of patients. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the present invention. Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the overall longitudinal cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the overall transverse cross-section structure of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram at point B; Figure 6 This is an exploded view of the distance adjustment mechanism and the auxiliary center positioning mechanism of the present invention; Figure 7 This is a partial structural diagram of the adjusting mechanism of the present invention; Figure 8This is a block diagram of the algorithm system of the present invention; Figure 9 This is a diagram illustrating the algorithm's performance in this invention; Figure 10 This is a classification result diagram of the present invention; Figure 11 This is the confusion matrix diagram of the present invention; Numbering on the map: 1. Tweezers body; 101. Acquisition probe; 102. Junction box; 2. Signal transmission line; 201. Signal connection line; 202. Signal acquisition device; 203. Signal transmission device; 3. Adjustment mechanism; 301. Mounting cavity; 302. Slide groove; 303. Synchronizing block; 304. Fixed cylinder; 305. Rotating groove; 306. Rotating ring; 307. Connecting ring; 308. Serrated synchronizing ring; 309. Fixed guide rail; 310. Connecting block; 311. Synchronizing ring; 312. Through arc-shaped groove; 313. Push rod; 314. Limiting block; 315. Arc-shaped movable groove; 316. Arc-shaped block; 317. Limiting groove; 318. Translation block; 4. Auxiliary center positioning mechanism; 401. Adhesion cylinder; 402. Spring groove; 403. Telescopic spring; 404. Compression ring; 405. Laser positioning light; 406. Energized electromagnetic coil; 407. Contact point. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example: Figures 1 to 8 As shown, the present invention provides a device for determining the decompression effect of trigeminal neuralgia during surgery, including forceps 1, a acquisition probe 101 is provided at the tip of the forceps 1, a junction box 102 is provided on the side of the forceps 1 away from the acquisition probe 101, and a distance adjustment mechanism 3 and an auxiliary center positioning mechanism 4 are provided between the junction box 102 and the forceps 1. The junction box 102 is equipped with a signal transmission line 2, and a signal connection line 201 is installed and connected on one side of the junction box 102. The signal connection line 201 and the signal transmission line 2 are interconnected. One end of the signal connection line 201 is connected to a signal acquisition device 202 and a signal transmission device 203 respectively. In the above embodiment, the acquisition probe 101 at the tip of the forceps 1 is placed at the trigeminal nerve location during the operation to collect potential signals. The signals are transmitted to the signal acquisition device 202 via the signal transmission line 2. After filtering and amplification, the signals are processed by the MCU and sent to the host computer in real time. The host computer processes the signals using a neural network classification algorithm to obtain a decompression effect evaluation conclusion. Finally, the signal is displayed in real time via the signal transmission device 203. When the distance between the acquisition probes 101 at the front of the forceps 1 is large, the overall signal of the nerve segment is detected, which can only reflect whether there is compression of the trigeminal nerve in that segment. By reducing the distance between the forceps 1 via the distance adjustment mechanism 3 (for example, from 10mm to 3 to 5mm), a smaller nerve area can be focused. By comparing the signal differences under different distances, the precise location of the compression point can be located, that is, the area with the most significant abnormal signal amplitude and prolonged latency, thereby avoiding blind decompression.

[0023] like Figures 1 to 8 As shown, the distance adjustment mechanism 3 includes a mounting cavity 301 set on the junction box 102. The mounting cavity 301 is symmetrically provided with sliding grooves 302. Synchronizing blocks 303 are symmetrically slidably arranged in the sliding grooves 302. The synchronizing blocks 303 are fixedly connected to the tweezers 1. The tweezers 1 is provided with a driving component around its perimeter. The driving component is used to drive the tweezers 1 to move in opposite directions or towards each other. The distance adjustment mechanism 3 is used to adjust the distance between the tweezers 1 and compare the signal differences under different distances by the acquisition probe 101 to locate the precise position of the pressure point and determine the pressure reduction effect. In the above embodiment, the driving component drives the synchronization block 303 to slide synchronously in the groove 302 of the mounting cavity 301 along the symmetrical direction, thereby driving the tweezers 1 to move synchronously in opposite directions or synchronously in opposite directions, realizing flexible adjustment of the spacing of the acquisition probe 101. When it is necessary to detect the overall signal of the nerve segment, the tweezers 1 are driven to move in opposite directions to increase the spacing. When it is necessary to focus on a local nerve area or locate a precise compression point, the tweezers 1 are driven to move in opposite directions to reduce the spacing. This, together with the acquisition probe 101, collects point signals at different spacings, laying the foundation for the determination of decompression effect and the location of compression points.

[0024] The drive assembly includes a fixed cylinder 304 fixedly mounted on one side of the junction box 102. A rotating groove 305 is provided on one side of the junction box 102. A rotating ring 306 is rotatably mounted in the rotating groove 305. A connecting ring 307 is fixedly mounted on one side of the rotating ring 306. The inner wall of the connecting ring 307 is rotatably connected to the outer surface of the fixed cylinder 304. A serrated synchronous ring 308 is fixedly mounted on the outer surface of the connecting ring 307. In the above embodiment, when medical personnel rotate the serrated synchronization ring 308, the serrations distributed on the outer surface of the serrated synchronization ring 308 can increase friction, thereby enabling the serrated synchronization ring 308 to rotate stably. The stably rotating serrated synchronization ring 308 then drives the connecting ring 307 to rotate synchronously. Since the connecting ring 307 is fixedly connected to the rotating ring 306, when the connecting ring 307 rotates, it further drives the rotating ring 306 to rotate stably within the rotating groove 305 of the junction box 102. At the same time, the inner wall of the connecting ring 307 rotates and engages with the outer surface of the fixed cylinder 304, ensuring the coaxiality and stability of the connecting ring 307 during rotation, providing a stable power transmission basis for adjusting the spacing of the forceps body 1.

[0025] Furthermore, the junction box 102 is symmetrically and fixedly provided with a fixed guide rail 309 on the side near the tweezer body 1. A connecting block 310 is slidably provided on each fixed guide rail 309. The connecting block 310 is fixedly connected to the back side of the tweezer body 1. A synchronous ring 311 is rotatably provided on the inner wall of the fixed cylinder 304. A through arc groove 312 is symmetrically provided on the synchronous ring 311. A push rod 313 is slidably provided on the inner wall of the through arc groove 312. The push rod 313 is fixedly connected to the connecting block 310. A limit block 314 is fixedly provided on the side of the push rod 313 away from the connecting block 310. In the above embodiment, when the synchronization ring 311 rotates synchronously with the connecting ring 307, the through arc groove 312 on the synchronization ring 311 undergoes angular displacement. Since the push rod 313 is slidably installed in the through arc groove 312 and is fixedly connected to the connecting block 310, when the through groove is angularly displaced, it will push the push rod 313 to make synchronous translational movement along the length direction of the fixed guide rail 309. Then, the connecting block 310 drives the two tweezers 1 to move towards or away from each other, so as to achieve precise adjustment of the spacing of the acquisition probe 101. The limiting block 314 can prevent the push rod 313 from slipping out of the through arc groove 312, ensuring the stability and reliability of the transmission process. The fixed guide rail 309 plays a guiding and limiting role in the sliding of the connecting block 310. By working together with the sliding groove 302 and the synchronization block 303 to prevent the tweezers 1 from shifting during the movement, it ensures that the acquisition probe 101 can be accurately aligned with the target nerve area.

[0026] Furthermore, the fixed cylinder 304 is symmetrically provided with arc-shaped movable grooves 315, and each arc-shaped movable groove 315 is provided with an arc-shaped block 316. The arc-shaped block 316 is fixedly connected to the synchronous ring 311. The arc-shaped block 316 is provided with a limit groove 317, and a translation block 318 is slidably provided in the limit groove 317. The translation block 318 is fixedly connected to the connecting ring 307. In the above embodiment, when the connecting ring 307 rotates, it drives the translation block 318 to rotate synchronously. The translation block 318 drives the arc block 316 to rotate synchronously within the arc-shaped movable groove 315 of the fixed cylinder 304 through the limiting groove 317 of the arc-shaped block 316. This causes the synchronization ring 311 to rotate accordingly. The arc-shaped movable groove 315 guides and limits the arc block 316, restricting the rotation angle of the synchronization ring 311. This prevents excessive adjustment of the spacing between the forceps 1 due to excessive rotation angle, which could damage the acquisition probe 101 or the trigeminal nerve tissue. The cooperation between the limiting groove 317 and the translation block 318 ensures the power transmission between the connecting ring 307 and the synchronization ring 311, ensuring that the rotation of the connecting ring 307 can accurately drive the rotation of the synchronization ring 311, thereby enabling the spacing of the forceps 1 to be adjusted smoothly and accurately.

[0027] The auxiliary center positioning mechanism 4 includes a bonding cylinder 401 fixedly installed on one side of the junction box 102. Laser positioning lights 405 are symmetrically fixedly installed on the bonding cylinder 401. The laser positioning lights 405 are turned on and off by a drive component. The auxiliary center positioning mechanism 4 is used to quickly locate the center point of the tweezers 1 to determine the decompression position. In the above embodiment, by attaching the fitting tube 401 to one side of the junction box 102, and then activating the laser positioning lamp 405, the laser beams emitted by the laser positioning lamps 405 on both sides form a cross. The intersection point is the center point of the forceps 1. Medical personnel can quickly locate the center corresponding position of the acquisition probe 101 at the tip of the forceps 1 through the laser intersection point, accurately align it with the trigeminal nerve to be detected area, avoid inaccurate acquisition signals due to positioning deviation, improve the accuracy of decompression effect determination and surgical efficiency. At the same time, the laser positioning can be turned off when positioning is not needed through the drive component, avoiding interference of the laser with the surgical field of view.

[0028] Furthermore, the auxiliary center positioning mechanism 4 also includes a spring groove 402 provided on the fitting cylinder 401, a telescopic spring 403 provided in the spring groove 402, a compression ring 404 provided on one side of the telescopic spring 403, and the side of the compression ring 404 away from the telescopic spring 403 is fixedly connected to the connecting ring 307. Among them, the outer surface of the extrusion ring 404 is attached to the inner wall of the spring groove 402, and an energized electromagnetic coil 406 is fixedly installed on the outer surface of the extrusion ring 404. The energized electromagnetic coil 406 is connected to an external power source, and a contact 407 is provided on one side of the energized electromagnetic coil 406. The contact 407 is fixedly installed on the bonding cylinder 401, and the contact 407 is connected to the laser positioning light 405. In the above embodiment, by pushing the sawtooth rotating ring to lower the connecting ring 307 synchronously and horizontally, the compression ring 404 compresses the telescopic spring 403. The telescopic spring 403 is in a compressed state at this time. During the pushing process, the energized electromagnetic coil 406 gradually approaches the contact point 407. When it is completely in contact with it, a closed circuit is formed, thereby activating the laser positioning lamp 405. When positioning is not needed, the sawtooth rotating ring is released, the compression ring 404 is reset under the elastic force of the telescopic spring 403, the energized electromagnetic coil 406 separates from the contact point 407, and the laser positioning lamp 405 is in a closed state. This realizes the linkage control between the laser positioning lamp 405 and the distance adjustment mechanism 3, simplifies the operation process, and improves the convenience of surgery. It should be further explained that when the sawtooth rotating ring is pushed axially, the translation block 318 slides in the limiting groove 317. Under the restriction of the limiting block 314, it will not drive the synchronous ring 311 to move axially. Under the width restriction of the arc-shaped movable groove 315, the translation block 318 will not disengage from the limiting groove 317, thus ensuring the stability of the entire auxiliary center positioning mechanism 4.

[0029] like Figure 8-11 As shown: It also includes an algorithm processing module for receiving neural potential signals acquired by the acquisition probe. The algorithm processing module includes: The MCU processing unit is used to control the timing of signal acquisition and signal transmission. The host computer analysis unit is used to receive the signal processed by the MCU, perform filtering, amplification and preprocessing, and use neural network classification algorithm to process the preoperative and intraoperative potential signals, and output the decompression effect evaluation conclusion. Neural network classification algorithms include the following steps: S1. Read preoperative and intraoperative multi-channel potential signals (e.g., 6 channels, sampling rate 1000 Hz). S2. Bandpass filter the signal (5–450 Hz); S3. Extract time-domain features (mean, standard deviation, skewness, kurtosis, root mean square, zero-crossing rate, peak-to-peak value) and frequency-domain features (relative energy of each frequency band). S4. Calculate the differences in characteristics between intraoperative and preoperative procedures; S5. Standardize the differential characteristics and group patients using KMeans clustering (k=2); S6. Output the clustering results and feature importance, and save them to the data recording system.

[0030] The host computer analysis unit displays the decompression effect assessment results to medical staff in real time through a signal transmission device, which is used for real-time guidance of intraoperative decompression operations. The algorithm processing module further includes a PCA dimensionality reduction and visualization module, which is used to reduce the dimensionality of the clustering results and generate a visual distribution map so that medical staff can intuitively observe the decompression effect during the operation. The algorithm processing module works in conjunction with the tweezers distance adjustment mechanism and the auxiliary center positioning mechanism to prompt medical staff to adjust the distance between the acquisition probes or the laser positioning status based on real-time analysis results, so as to optimize the accuracy of decompression effect determination.

[0031] Based on all the above embodiments, the working principle and usage process of the present invention are as follows: This device focuses on the acquisition, processing and analysis of potential signals, combined with the spacing adjustment function of the spacing adjustment mechanism 3 and the precise positioning function of the auxiliary center positioning mechanism 4, to achieve real-time determination of the decompression effect of trigeminal neuralgia during surgery.

[0032] Its core principle is as follows: the acquisition probe 101 at the tip of the forceps 1 contacts the trigeminal nerve to acquire nerve potential signals. After transmission, filtering, and amplification, the signals are processed by the MCU and then analyzed by the neural network classification algorithm of the host computer to obtain a decompression effect assessment conclusion and display it in real time. At the same time, the distance adjustment mechanism 3 adjusts the distance between the acquisition probes 101 to compare the difference in potential signals under different distances and accurately locate the nerve compression point. The auxiliary central positioning mechanism 4 ensures that the acquisition probe 101 is accurately aligned with the nerve area to be detected through the laser cross intersection point, ensuring the accuracy of signal acquisition. The distance adjustment mechanism 3 and the auxiliary central positioning mechanism 4 are linked to realize the opening and closing of laser positioning and simplify the operation process.

[0033] The working principle of the signal acquisition module: The device directly contacts the target area of ​​the trigeminal nerve during surgery through the acquisition probe 101 at the tip of the forceps 1 to acquire nerve potential signals. The acquired raw signals are transmitted to the signal acquisition device 202 via the signal transmission line 2 between the forceps 1 and the junction box 102. The signal acquisition device 202 filters and amplifies the raw signals to remove interference signals and enhance effective signals. The processed signals are then analyzed by the MCU. Subsequently, the signal is transmitted to the host computer in real time by the signal transmitting device 203. The host computer uses a neural network classification algorithm to analyze and process the signals. Based on key parameters such as signal amplitude and latency, it generates a decompression effect assessment conclusion, which is displayed in real time by the signal transmitting device 203, providing medical staff with an intuitive basis for judgment.

[0034] Working principle of the distance adjustment mechanism 3: The distance adjustment mechanism 3 is used to flexibly adjust the distance between the acquisition probe 101 at the tip of the forceps body 1 to achieve nerve signal acquisition in different ranges. Medical staff rotate the sawtooth synchronization ring 308 on one side of the junction box 102, and the increased friction of the sawtooth drives the connecting ring 307 to rotate stably. The connecting ring 307 then drives the rotating ring 306 to rotate synchronously in the rotating groove 305 of the junction box 102. At the same time, the connecting ring 307 drives the synchronization ring 311 to rotate in the fixed cylinder 304 through the cooperation of the translation block 318 and the arc block 316. When the synchronization ring 311 rotates, the through arc groove 312 on its surface is angularly offset, pushing the push rod 313, which is slidably installed in the groove, along the fixed guide rail 3. 09. The push rod 313 drives the two forceps 1 on both sides to move synchronously towards or away from each other through the connecting block 310, so as to achieve precise adjustment of the distance between the acquisition probes 101. Among them, the arc-shaped movable groove 315 limits the rotation angle of the arc-shaped block 316 to avoid excessive adjustment of the distance, the limiting block 314 prevents the push rod 313 from slipping, and the fixed guide rail 309 cooperates with the sliding groove 302 and the synchronization block 303 to avoid the movement deviation of the forceps 1 and ensure the accuracy of signal acquisition. By comparing the difference of potential signals under different distances (such as acquiring the overall signal of the nerve segment when the distance is 10mm, and focusing on the local area when the distance is 3 to 5mm), the area with the most significant abnormal signal amplitude and prolonged latency, i.e., the trigeminal nerve compression point, can be located to avoid blind decompression. The working principle of the auxiliary center positioning mechanism 4: This mechanism is used to quickly locate the center point of the forceps 1, ensuring that the acquisition probe 101 is accurately aligned with the trigeminal nerve detection area. The fitting cylinder 401 is fixed on one side of the junction box 102, and the laser positioning lamps 405 symmetrically installed on it can emit laser beams. The two laser beams intersect to form a cross, and the intersection point is the center point of the forceps 1. The opening and closing of the laser positioning lamp 405 is linked with the distance adjustment mechanism 3. When the medical staff pushes the sawtooth synchronization coil 308 to drive the connecting ring 307 to move axially, the connecting ring 307... 07 drives the compression ring 404 to compress the telescopic spring 403 in the spring groove 402. The energized electromagnetic coil 406 on the compression ring 404 gradually approaches the contact point 407 on the bonding cylinder 401. When the two are fully bonded to form a closed circuit, the laser positioning light 405 is activated. After the serrated synchronization coil 308 is released, the compression ring 404 is reset under the elastic force of the telescopic spring 403. The energized electromagnetic coil 406 separates from the contact point 407, and the laser positioning light 405 is turned off. This achieves precise positioning while avoiding laser interference with the surgical field of vision.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for determining the decompression effect of trigeminal neuralgia during surgery, comprising forceps (1), wherein a acquisition probe (101) is disposed at the tip of the forceps (1), and a junction box (102) is disposed on the side of the forceps (1) away from the acquisition probe (101), characterized in that: A distance adjustment mechanism (3) and an auxiliary center positioning mechanism (4) are provided between the junction box (102) and the tweezers (1). The distance adjustment mechanism (3) includes a mounting cavity (301) on the junction box (102). The mounting cavity (301) is symmetrically provided with sliding grooves (302). Synchronous blocks (303) are symmetrically slidably arranged in the sliding grooves (302). The synchronous blocks (303) are fixedly connected to the tweezers (1). The tweezers (1) are provided with a driving assembly around them. The driving assembly is used to drive the tweezers (1) to move in opposite directions or towards each other. The distance adjustment mechanism (3) is used to adjust the distance between the tweezers (1) and compare the signal differences under different distances by the acquisition probe (101) to locate the precise position of the pressure point and determine the pressure relief effect. The auxiliary center positioning mechanism (4) includes a bonding cylinder (401) fixedly installed on one side of the junction box (102). A laser positioning lamp (405) is symmetrically fixedly installed on the bonding cylinder (401). The laser positioning lamp (405) is turned on and off by a drive component. The auxiliary center positioning mechanism (4) is used to quickly locate the center point of the tweezers (1) to determine the decompression position.

2. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 1, characterized in that, The junction box (102) is provided with a signal transmission line (2). A signal connection line (201) is installed and connected on one side of the junction box (102). The signal connection line (201) and the signal transmission line (2) are connected to each other. One end of the signal connection line (201) is connected to a signal acquisition device (202) and a signal transmission device (203).

3. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 1, characterized in that, The drive assembly includes a fixed cylinder (304) fixedly disposed on one side of the junction box (102). A rotating groove (305) is provided on one side of the junction box (102). A rotating ring (306) is rotatably disposed in the rotating groove (305). A connecting ring (307) is fixedly disposed on one side of the rotating ring (306). The inner wall of the connecting ring (307) is rotatably connected to the outer surface of the fixed cylinder (304). A sawtooth synchronization ring (308) is fixedly disposed on the outer surface of the connecting ring (307).

4. The device for determining the decompression effect of trigeminal neuralgia during surgery according to claim 3, characterized in that, The junction box (102) is symmetrically and fixedly provided with a fixed guide rail (309) on the side near the tweezers body (1). A connecting block (310) is slidably provided on each of the fixed guide rails (309). The connecting block (310) is fixedly connected to the back side of the tweezers body (1).

5. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 4, characterized in that, The inner wall of the fixed cylinder (304) is provided with a rotatable synchronizing ring (311), and the synchronizing ring (311) is provided with a symmetrical through arc groove (312), and the inner wall of the through arc groove (312) is provided with a push rod (313).

6. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 5, characterized in that, The push rod (313) is fixedly connected to the connecting block (310), and a limit block (314) is fixedly provided on the side of the push rod (313) away from the connecting block (310).

7. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 3, characterized in that, The fixed cylinder (304) is symmetrically provided with arc-shaped movable grooves (315), and each arc-shaped movable groove (315) is provided with an arc-shaped block (316). The arc-shaped block (316) is fixedly connected to the synchronous ring (311). The arc-shaped block (316) is provided with a limiting groove (317), and a translation block (318) is slidably provided in the limiting groove (317). The translation block (318) is fixedly connected to the connecting ring (307).

8. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 1, characterized in that, The auxiliary center positioning mechanism (4) also includes a spring groove (402) provided on the fitting cylinder (401), a telescopic spring (403) is provided in the spring groove (402), a compression ring (404) is provided on one side of the telescopic spring (403), and the side of the compression ring (404) away from the telescopic spring (403) is fixedly connected to the connecting ring (307). The feature is that the outer surface of the extrusion ring (404) is attached to the inner wall of the spring groove (402), and an energized electromagnetic coil (406) is fixedly provided on the outer surface of the extrusion ring (404). The energized electromagnetic coil (406) is connected to an external power source. A contact (407) is provided on one side of the energized electromagnetic coil (406). The contact (407) is fixedly installed on the bonding cylinder (401). The contact (407) is connected to the laser positioning lamp (405).

9. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 1, characterized in that, It also includes an algorithm processing module for receiving neural potential signals acquired by the acquisition probe, the algorithm processing module comprising: The MCU processing unit is used to control the timing of signal acquisition and signal transmission. The host computer analysis unit is used to receive the signal processed by the MCU, perform filtering, amplification and preprocessing, and use neural network classification algorithm to process the preoperative and intraoperative potential signals, and output the decompression effect evaluation conclusion. Neural network classification algorithms include the following steps: S1. Read multi-channel potential signals before and during surgery; S2. Perform bandpass filtering on the signal; S3. Extract time-domain and frequency-domain features; S4. Calculate the differences in characteristics between intraoperative and preoperative procedures; S5. Standardize the differential characteristics and group patients using KMeans clustering; S6. Output the clustering results and feature importance, and save them to the data recording system.

10. The device for determining the effect of intraoperative trigeminal neuralgia decompression according to claim 9, characterized in that, The host computer analysis unit displays the decompression effect evaluation conclusion to medical staff in real time through a signal transmission device, which is used for real-time guidance of intraoperative decompression operation. The algorithm processing module further includes a PCA dimensionality reduction and visualization module, which is used to reduce the dimensionality of the clustering results and generate a visual distribution map so that medical staff can intuitively observe the decompression effect during the operation. The algorithm processing module works in conjunction with the tweezers adjustment mechanism and the auxiliary center positioning mechanism to prompt medical staff to adjust the distance between the acquisition probes or the laser positioning status based on real-time analysis results, so as to optimize the accuracy of decompression effect determination.

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