Endoscopic electrode detection system adaptable to intracavitary tumors and detection method of endoscopic electrode detection system

Abstract

The invention provides an endoscopic electrode detection system adaptable to an intracavitary tumor and a detection method thereof, the endoscopic electrode detection system adaptable to the intracavitary tumor comprises a control unit and a detection unit; the detection unit comprises an operation end and a plurality of probes, different probes adopt different detection modes, the operation end and the probes are connected through a catheter, a pull rope is arranged in the catheter, and a power connection circuit is arranged in the pull rope; the operation end is used for controlling the probe to detect an intracavitary tumor through the pull rope; and the control unit is used for inputting patient information, matching an adaptive probe according to the patient information, and analyzing data detected by the probe to obtain a detection result. The multi-type probe adapts to different intracavitary tumor forms and detection scenes, comprises but is not limited to various detection requirements of narrow intracavitary detection, raised tumor surrounding detection, flat tumor large-area detection and the like, and is high in adaptability.

Description

Technical Field

[0001] This invention relates to the field of intracavitary tumor detection technology, specifically to an endoscopic electrode detection system and method adaptable to intracavitary tumors. Background Technology

[0002] Intraluminal tumors (such as gastric cancer, colorectal cancer, lung cancer, and bladder cancer) are common types of malignant tumors in clinical practice, and early diagnosis and accurate detection are crucial for improving patient survival rates. Currently, the main methods for detecting intraluminal tumors include endoscopic examinations (gastroscopy, colonoscopy, bronchoscopy, etc.), imaging examinations (CT, MRI), pathological biopsy, and electrochemical detection. However, existing technologies have many limitations in clinical application and cannot meet the needs of precision medicine.

[0003] In recent years, electrochemical detection technologies (such as impedance spectroscopy and voltammetry) have been increasingly applied to the detection of intracavitary tumors because they can reflect the electrochemical properties of tumor tissues (such as cell membrane impedance, ion concentration, and enzyme activity) in real time. However, the probe designs of existing electrochemical detection equipment are limited and cannot be adapted to intracavitary tumors of different shapes and locations, thus failing to meet diverse clinical needs.

[0004] The internal environment of the human body is complex (e.g., the curvature of the digestive tract, the narrowing of the respiratory tract, and the mucosal sensitivity of the urinary tract), and tumors have various morphologies (protruding, flat, ulcerated, and diffuse). However, most probes in existing endoscopic electrode detection devices are fixed single-point electrodes or rigid planar electrodes, which are difficult to adapt to different scenarios. For example, for protruding tumors, single-point electrodes can only detect local areas and cannot comprehensively obtain the electrochemical information of the tumor tissue. For tumors in narrow cavities or curved areas, the probes cannot flexibly adjust their shape, making operation difficult and potentially damaging surrounding normal tissues. For multiple small tumors, existing probes lack efficient multi-point detection capabilities, resulting in low detection efficiency. Summary of the Invention

[0005] The main objective of this invention is to provide an endoscopic electrode detection system and method adaptable to intracavitary tumors, thereby solving the problem of the lack of diverse probes in existing technologies for detecting intracavitary tumors.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An endoscopic electrode detection system adaptable to intracavitary tumors includes a control unit and a detection unit; The detection unit includes an operating end and several probes. Different probes use different detection methods. The operating end and probes are connected by a catheter. The catheter has a pull rope inside, and the pull rope has electrical wiring inside. The operating end is used to control the probe to detect intracavitary tumors by pulling the rope. The control unit is used to input patient information, match the appropriate probe according to the patient information, and analyze the data detected by the probe to obtain the test results.

[0007] In a preferred embodiment, the operating end includes a handle, and one end of the handle is provided with a connecting sleeve; The conduit connects to the connecting sleeve, and the pull cord extends through the connecting sleeve to the inside of the handle; The pull rope is made of metal wire, and there is an insulation layer between the metal wire and the built-in electrical wiring. A sliding block is slidably connected inside the grip, and a movable sleeve is slidably connected to the grip. The sliding block and the movable sleeve are connected by a slider. A groove is provided on the side of the grip, and the slider is slidably connected inside the groove. The movable sleeve is equipped with a power socket, the pull rope is connected to the slide, the power socket is electrically connected to the power line inside the pull rope, and is connected to an external control unit; The active sleeve has a handle.

[0008] In a preferred embodiment, the probe includes a first adapter that is slidably connected inside the catheter, and the first adapter is connected to a pull rope; The first adapter has several probes on the side away from the pull rope; the probes are flexible double-sided needle core electrodes. When the probe is a single probe, it extends from the center of the catheter tip. When there are multiple probes, the head of the catheter is sealed and has multiple guide holes. When the probe extends, the guide holes guide the direction of the probe extension for multi-point detection. The first adapter is used to connect the electrical signal between the power line and the probe.

[0009] In the preferred embodiment, the connecting sleeve is rotatably connected to both the tubing and the handle; The inner side of the connecting sleeve is provided with a limiting groove, which is an annular groove. The end edges of the guide tube and the handle are provided with annular flanges that are adapted to the limiting groove. A gap is provided between the guide tube and the handle, and a connecting block is provided inside the connecting sleeve. The connecting block is located within the gap. The connecting block has a connecting hole that matches the pull rope, and the pull rope slides through the connecting hole. The rotation of the connecting sleeve drives the pull rope to rotate through the connecting block and connecting hole; The slide block is equipped with a conductive slip ring. The pull rope is connected to the rotating end of the conductive slip ring. The electrical connection structure at the rotating end of the conductive slip ring is connected to the electrical connection line inside the pull rope. The electrical connection structure at the fixed end of the conductive slip ring is connected to the electrical connection base. A limiting sleeve is provided on the side of the slide near the pull rope. The limiting sleeve is fitted onto the outside of the pull rope to limit the position of the pull rope.

[0010] In a preferred embodiment, the probe includes a second adapter that is slidably connected inside the catheter, and the second adapter is connected to a pull rope; The second adapter has an expansion ring on the side away from the pull rope. The expansion ring is an elliptical elastic ring. Several first electrodes are provided on the inner side of the expansion ring; or Several second electrodes are provided on the outer side of the expansion ring; The second adapter is used to connect the power line to the first or second electrode for electrical signal connection.

[0011] In a preferred embodiment, the probe includes a fixed sleeve at the end of the catheter, a sliding sleeve inside the fixed sleeve, a third adapter inside the sliding sleeve, and the third adapter connected to the pull rope. The third adapter has a fixing block on the side away from the pull rope, and the fixing block is rotatably connected to two rotating seats through a fixing shaft; The rotating base is equipped with a movable rod, and a third electrode is provided at the end of the movable rod away from the third adapter; the third adapter is used to connect the electrical signal between the power line and the third electrode; The rotating seat has a guide block on its side and a guide groove on the inner side of the sliding sleeve. The guide block is slidably connected to the inside of the guide groove. When the pull rope moves the third adapter seat to the outside of the guide tube, the third adapter seat slides relative to the sliding sleeve. The guide groove is used to guide the guide block to rotate relative to the fixed shaft during the sliding process. During this process, the guide block drives the rotating seat and the movable rod to rotate.

[0012] In a preferred embodiment, a fixing ring is provided at one end of the fixing sleeve near the conduit, the sliding sleeve is slidably connected to the inside of the fixing sleeve, and a spring is provided between the sliding sleeve and the fixing ring; A limiting ring is provided at one end of the sliding sleeve near the guide tube, and the pull rope slides through the limiting ring; The third adapter is slidably connected to the inside of the sliding sleeve; A power connection mechanism is provided between the rotating base and the fixed base, and the third electrode is electrically connected to the third adapter through the power connection mechanism; A limiting plate is provided on the side of the fixed sleeve away from the conduit. The limiting plate is annular and is used to restrict the sliding sleeve from sliding out of the fixed sleeve.

[0013] A detection method for an endoscopic electrode detection system adaptable to intracavitary tumors includes the following steps: S1. Enter the patient's information according to the patient's condition; S2. Analyze and adapt the probe to the patient based on the entered information; S3. Select the appropriate probe based on the analysis results and make preoperative preparations; S4. The probe is used to detect the area to be detected inside the patient's cavity, and the detection data is transmitted to the control unit. S5. Analyze the inspection data to obtain the inspection results.

[0014] In the preferred scheme, the patient's information includes the patient's gender, age, height, weight, medical history, allergy history, the location of the test, and the intracavitary testing environment; The probes include clamp-on probes, collar probes, single-point probes, and multi-point probes.

[0015] In the preferred embodiment, during the detection process, the operating end controls the probe to clamp the tissue inside the cavity, retrieve the tissue inside the cavity, or insert the probe into the tissue inside the cavity at one or more points by means of extension and retraction. Then, the corresponding tissue inside the cavity is detected by the electrodes of the probe. The operator controls the probe rotation by rotating it to adjust the detection position.

[0016] This invention provides an endoscopic electrode detection system and method adaptable to intracavitary tumors. By adopting the above solution, the following beneficial effects are achieved: Multiple probe types are available to adapt to different intracavitary tumor morphologies and detection scenarios, including but not limited to detection in narrow cavities, detection of protruding tumors surrounding the tumor, and detection of large-area flat tumors, demonstrating strong adaptability.

[0017] It is easy to operate, and the probe's extension, rotation, and expansion movements are controlled with high precision, thereby reducing the difficulty of detection and making detection easier.

[0018] Intelligent selection of probe type and analysis of test results can better adapt to the patient's actual situation, ensuring the accuracy and safety of test results. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the grip structure of the present invention; Figure 3 This is a cross-sectional view of the grip of the present invention; Figure 4 This is a schematic diagram of the structure of the probe of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the probe of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the structure of the probe of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the structure of the probe of the present invention. Figure 4 ; Figure 8 This is a schematic diagram of the structure of the probe of the present invention. Figure 5 ; Figure 9This is a schematic diagram of the internal structure of the fixing sleeve of the present invention.

[0020] In the picture: The components include: a conduit 1, a handle 201, a connecting sleeve 202, a limiting groove 203, a connecting block 204, a sliding groove 205, a movable sleeve 206, a slider 207, a sliding base 208, a conductive slip ring 209, a limiting sleeve 210, a power receiving base 211, a handle 212, a pull rope 3, a first adapter 401, a probe 402, a guide hole 403, a second adapter 501, an expansion ring 502, a first electrode 503, a second electrode 504, a fixed sleeve 601, a fixed ring 602, a spring 603, a sliding sleeve 604, a limiting ring 605, a third adapter 606, a fixed block 607, a power receiving mechanism 608, a fixed shaft 609, a rotating base 610, a movable rod 611, a third electrode 612, a guide block 613, a guide groove 614, and a limiting plate 615. Detailed Implementation

[0021] Example 1: like Figure 1 , 2 As shown in Figures 3, 4, and 5, an endoscopic electrode detection system adaptable to intracavitary tumors includes a control unit and a detection unit. The detection unit adapts to different intracavitary tumor morphologies and detection scenarios through multiple types of probes. The operating terminal enables precise control of the probes. The control unit is used for patient information management, probe adaptation, data acquisition, and analysis. Specifically: The detection unit includes an operating end, a catheter 1, a pull cord 3, and several probes. The operating end and probes are connected via the catheter 1. The catheter 1 is preferably a flexible medical tube commonly used in existing endovascular systems, with a medical standard diameter, which can flexibly adapt to the curved environment inside the cavity and avoid damage to the mucosa. The catheter 1 contains a pull cord 3, which is preferably a medical stainless steel wire, combining mechanical strength and flexibility, and is used to transmit the extension and rotational power of the operating end. The pull cord 3 has an internal electrical circuit, preferably a copper core wire, and an insulation layer, preferably made of polytetrafluoroethylene, is provided between the pull cord 3 and the electrical circuit. The electrical circuit is used for the transmission of electrical signals between the probe electrodes and the control unit. A sealing layer, preferably made of medical silicone rubber, is preferably provided between the metal wire and the electrical circuit to achieve isolation and sealing between the mechanical structure and the electrical signal transmission, preventing the intrusion of body fluids that could cause a short circuit.

[0022] The operating end is used to control the extension, rotation and detection actions of the probe. Specifically, it includes a handle 201, a connecting sleeve 202, a movable sleeve 206, a slide 208, a conductive slip ring 209 and a power connector 211. The whole is injection molded from medical-grade ABS material, which is convenient for doctors to operate with one hand.

[0023] The grip 201 has a cylindrical structure and an anti-slip texture on the surface; a connecting sleeve 202 is provided at one end of the grip 201. A movable sleeve 206 is slidably connected to the outer side of the grip 201. An axial groove 205 is provided on the side of the grip 201, and a slider 207 is provided on the inner side of the movable sleeve 206. The slider 207 is slidably connected within the groove 205, allowing the movable sleeve 206 to slide along the axial direction of the grip 201. A handle 212 is provided on the outer side of the movable sleeve 206 for easy pushing by the doctor; a power connector 211 is provided on the inner side of the movable sleeve 206 for connecting to the signal line of the control unit.

[0024] The handle 201 has a sliding connection to a slide block 208. The slide block 208 and the movable sleeve 206 are fixedly connected by a slider 207. When the movable sleeve 206 slides, it drives the slide block 208 to move axially synchronously. The slide block 208 is connected to one end of the pull rope 3. The axial displacement of the slide block 208 drives the pull rope 3 to extend and retract, thereby controlling the extension and retraction of the probe. The power connector 211 is electrically connected to the power line inside the pull rope 3.

[0025] It includes a first adapter 401, a probe 402, and a guide hole 403. The first adapter 401 is a cylindrical structure that is slidably connected inside the catheter 1 and fixedly connected to the end of the pull rope 3 away from the operating end. It is used to connect the electrical circuit to the electrical signal of the probe 402. The probe 402 is a flexible double-sided needle core electrode of the prior art. It is made of medical materials and has a certain degree of flexibility. It can adapt to the environment inside the cavity and avoid puncturing the mucosa.

[0026] In use, pushing the movable sleeve 206 will cause the pull rope 3 to extend and retract, thereby causing the first adapter 401 and the probe 402 to extend and retract, completing the extension and retraction of the probe 402 for piercing.

[0027] When probe 402 is a single probe, it extends from the center of the head of catheter 1 and is used for precise detection of a single target, such as a small raised tumor. When there are 2-5 probes 402, the head of the catheter 1 is sealed and has 2-5 guide holes 403. The guide holes 403 are evenly distributed around the head of the catheter 1. When the probe 402 extends, it is guided through the guide holes 403 to achieve simultaneous detection of 3-5 points. For example, when detecting diffuse flat tumors, the detection efficiency is improved.

[0028] Example 2: like Figure 1 , 2 As shown in Figures 3, 6, and 7, the connecting sleeve 202 is connected to the conduit 1 and the handle 201 by a rotational fit. The inner side of the connecting sleeve 202 is provided with an annular limiting groove 203. The end edges of the conduit 1 and the handle 201 are provided with annular flanges that are adapted to the limiting groove 203, ensuring that the connecting sleeve 202 can rotate flexibly relative to the conduit 1 and the handle 201 without axial displacement.

[0029] A 1-2mm gap is reserved between the catheter 1 and the handle 201. A connecting block 204 is provided on the inner side of the connecting sleeve 202. The connecting block 204 is located in the gap. A connecting hole adapted to the pull rope 3 is opened in the middle of the connecting block 204. The pull rope 3 slides through the connecting hole. When the connecting sleeve 202 is rotated, the connecting sleeve 202 rotates and drives the pull rope 3 to rotate synchronously through the connecting block 204, thereby controlling the rotation of the probe. The rotation angle is 0-360° and the rotation accuracy is ±1°. The cross-section of the pull rope 3 is preferably polygonal, and the corners of the polygon are rounded to facilitate the transmission between the connecting block 204 and the pull rope 3.

[0030] A conductive slip ring 209, preferably model LPC-04, is installed inside the slide block 208 to solve the problem of the electrical wiring getting tangled when the pull rope 3 rotates. The pull rope 3 is fixedly connected to the rotating end of the conductive slip ring 209. The electrical connection structure at the rotating end of the conductive slip ring 209 is fixed to the electrical wiring inside the pull rope 3. The electrical connection structure at the fixed end of the conductive slip ring 209 is connected to the electrical base 211 via a wire to ensure stable electrical signal transmission during rotation. A limiting sleeve 210 is provided on the side of the slide block 208 near the pull rope 3. The limiting sleeve 210 is fitted onto the outside of the pull rope 3 to limit the radial displacement of the pull rope 3 and avoid signal interference caused by the swaying of the pull rope 3.

[0031] The probe is suitable for detecting circumferential tumors or the walls of cavities, and includes a second adapter 501, an expansion ring 502, a first electrode 503, and a second electrode 504. The second adapter 501 has the same structure as the first adapter 401, is slidably connected inside the catheter 1, and is fixed with a pull cord 3. The expansion ring 502 is an elliptical elastic ring made of medical-grade titanium-nickel shape memory alloy. After extending out of the catheter 1, it automatically expands to a preset shape, and when retracted into the catheter 1, it is squeezed and shrinks back into the tube. The inner side of the expansion ring 502 is provided with 2-4 first electrodes 503, or the outer side is provided with 2-4 second electrodes 504. The electrode size is 2mm×1mm×0.5mm, and they are evenly distributed around the circumference of the expansion ring 502 for circumferential electrochemical detection of tumor tissue, ensuring comprehensive detection signals.

[0032] Example 3: like Figure 1 , 2 As shown in Figures 3, 8, and 9, the connecting sleeve 202 is connected to the conduit 1 and the handle 201 by a rotational fit. The inner side of the connecting sleeve 202 is provided with an annular limiting groove 203. The end edges of the conduit 1 and the handle 201 are provided with annular flanges that are adapted to the limiting groove 203, ensuring that the connecting sleeve 202 can rotate flexibly relative to the conduit 1 and the handle 201 without axial displacement.

[0033] A 1-2mm gap is reserved between the catheter 1 and the handle 201. A connecting block 204 is provided on the inner side of the connecting sleeve 202. The connecting block 204 is located in the gap. A connecting hole adapted to the pull rope 3 is opened in the middle of the connecting block 204. The pull rope 3 slides through the connecting hole. When the connecting sleeve 202 is rotated, the connecting sleeve 202 rotates and drives the pull rope 3 to rotate synchronously through the connecting block 204, thereby controlling the rotation of the probe. The rotation angle is 0-360° and the rotation accuracy is ±1°. The cross-section of the pull rope 3 is preferably polygonal, and the corners of the polygon are rounded to facilitate the transmission between the connecting block 204 and the pull rope 3.

[0034] A conductive slip ring 209, preferably model LPC-04, is installed inside the slide block 208 to solve the problem of the electrical wiring getting tangled when the pull rope 3 rotates. The pull rope 3 is fixedly connected to the rotating end of the conductive slip ring 209. The electrical connection structure at the rotating end of the conductive slip ring 209 is fixed to the electrical wiring inside the pull rope 3. The electrical connection structure at the fixed end of the conductive slip ring 209 is connected to the electrical base 211 via a wire to ensure stable electrical signal transmission during rotation. A limiting sleeve 210 is provided on the side of the slide block 208 near the pull rope 3. The limiting sleeve 210 is fitted onto the outside of the pull rope 3 to limit the radial displacement of the pull rope 3 and avoid signal interference caused by the swaying of the pull rope 3.

[0035] The probe includes a fixed sleeve 601, a sliding sleeve 604, a third adapter 606, a rotating seat 610, a movable rod 611, and a third electrode 612. The fixed sleeve 601 is a cylindrical structure and is fixed to the end of the catheter 1. A fixing ring 602 is provided at the end of the fixed sleeve 601 near the catheter 1. The sliding sleeve 604 is slidably connected inside the fixed sleeve 601. A spring 603 is provided between the sliding sleeve 604 and the fixing ring 602. The spring 603 is made of medical stainless steel. A limiting ring 605 is provided at the end of the sliding sleeve 604 near the catheter 1. The pull rope 3 slides through the limiting ring 605 and is connected to the third adapter 606.

[0036] The third adapter 606 is slidably connected inside the sliding sleeve 604 and is square-shaped with chamfered edges. A fixing block 607 is provided on the side of the third adapter 606 away from the pull rope 3. The fixing block 607 is rotatably connected to two rotating seats 610 via a fixing shaft 609. A movable rod 611 is provided at the end of the rotating seat 610 away from the fixing block 607. The movable rod 611 is preferably made of medical titanium alloy, and a third electrode 612 is provided at the end of the movable rod 611. A cylindrical guide block 613 is provided on the side of the rotating seat 610, and a guide groove 614 is provided on the inner side of the sliding sleeve 604. The shape of the guide groove 614 is as follows... Figure 9 The upper part curves outward, while the lower part is set vertically. The guide block 613 is slidably connected to the inside of the guide groove 614.

[0037] A power connection mechanism 608 is provided between the rotating seat 610 and the fixed block 607. The power connection mechanism 608 is preferably a miniature conductive slip ring, which is used for the electrical signal connection between the third electrode 612 and the third adapter 606 to ensure stable signal transmission during the rotation of the movable rod 611. An annular limiting plate 615 is provided on the side of the fixed sleeve 601 away from the guide tube 1 to restrict the sliding sleeve 604 from sliding out of the fixed sleeve 601.

[0038] In normal conditions, the spring 603 pushes the sliding sleeve 604 to keep it close to the limiting plate 615. When the pull rope 3 drives the third adapter 606 to move to the outside of the catheter 1, the third adapter 606 slides relative to the sliding sleeve 604. During this process, the guide block 613 moves along the guide groove 614. When it moves to the curved section, the guide groove 614 guides the guide block 613 to drive the rotating seat 610 to rotate around the fixed axis 609, so that the two movable rods 611 expand to both sides. The third electrode 612 fits against the flat tumor surface to achieve large-area detection. In this method, the third electrode 612 is set on the side of the end of the movable rod 611 away from the third adapter 606. After the test is completed, pull the rope 3 in the opposite direction to reset the third adapter 606. Simultaneously reset the movable rod 611. Continue pulling, and the third adapter 606 drives the sliding sleeve 604 to retract through the limit ring 605, compressing the spring 603 and causing the movable rod 611 to retract back into the guide tube 1 for easy removal.

[0039] In a further embodiment, when the pull rope 3 moves the third adapter 606 to the outside of the catheter 1, the third adapter 606 slides relative to the sliding sleeve 604. During this process, the guide block 613 moves along the guide groove 614. When it moves to the curved section, the guide groove 614 guides the guide block 613 to drive the rotating seat 610 to rotate around the fixed axis 609, causing the two movable rods 611 to expand to both sides, so that the tissue to be tested is located between the two movable rods 611. Then, the pull rope 3 is pulled, and the third adapter 606 slides in the opposite direction relative to the sliding sleeve 604. The two movable rods 611 rotate inward to clamp the tissue to be tested, which can be used for clamping detection. This method is suitable for protruding tumors that are not convenient for ring detection. In this case, the third electrode 612 is set on the side where the ends of the two movable rods 611 are close to each other.

[0040] After the test is completed, first push the pull rope 3 to open the two movable rods 611, thereby releasing the tissue being tested. Then retract one end away from the catheter 1 so that the movable rods 611 will no longer clamp the tissue inside the cavity. Then pull the pull rope 3 in the opposite direction to drive the third adapter 606 to reset. The movable rods 611 reset synchronously. Continue to pull, and the third adapter 606 drives the sliding sleeve 604 to retract through the limiting ring 605, compressing the spring 603, so that the movable rods 611 retract back into the catheter 1 for easy removal.

[0041] The control unit is a desktop or portable device, including a main unit, touch screen, data interface, power module, and software system, with the following specific functions: The host uses an industrial-grade microcontroller as the core controller, preferably an STM32H743. The data acquisition module is preferably a 16-bit ADC chip, used to acquire electrochemical signals from the probe electrodes, such as impedance, current, and voltage. The touch screen supports multi-touch and is used for patient information entry, probe selection, parameter setting, and display of test results. An Ethernet interface and wireless transmission module support data export and remote consultation.

[0042] Software System: The software system is developed based on the Windows or Android operating system and has the following functions: Patient information management: Enter patient gender, age, height, weight, medical history, allergy history, examination location and intracavitary examination environment, such as mucosal humidity and degree of stenosis, and establish patient files; Probe compatibility analysis: Based on patient information, such as the location of the tumor, predicted tumor morphology, and intracavitary environment, the model is trained and the algorithm automatically matches the appropriate probe type and prompts the doctor for confirmation. Detection parameter settings: The detection mode can be adjusted according to actual testing needs and medical orders, such as impedance spectroscopy detection, voltammetry detection, etc. Data acquisition and analysis: The system acquires electrochemical signals transmitted by the probe in real time, analyzes signal features through built-in algorithms such as support vector machines and neural networks, compares the results with feature databases of normal tissues, benign tumors, and malignant tumors, and outputs detection results, including benign or malignant determination and malignancy grade. Data storage and export: Automatically stores patient information, test data, and test results, and supports export in PDF and Excel formats for easy medical record archiving and subsequent analysis.

[0043] All probe electrodes are preferably made of medical-grade platinum-iridium alloy, with biocompatibility meeting ISO10993 standards to avoid allergic reactions; the electrode surface roughness Ra≤0.1μm reduces irritation to the mucous membrane.

[0044] Based on the above embodiments, it also includes A detection method for an endoscopic electrode detection system adaptable to intracavitary tumors, comprising the following specific steps: S1: Patient Information Entry: Doctors input various patient information via the touchscreen of the control unit, including: Basic information: gender, age, height, weight; Clinical information: medical history (e.g., family history of cancer, history of previous intracavitary diseases), allergy history (e.g., allergy to metals or silicone); Detection-related information: the location being tested (e.g., gastric antrum, colon, bronchus, bladder), the intracavitary environment (obtained through preoperative endoscopic observation, such as mucosal moisture, presence of inflammation, and degree of intracavitary narrowing), and the predicted tumor morphology (e.g., raised, flat, ulcerative).

[0045] S2: Probe adapter: The control unit software system automatically matches a suitable probe based on the entered patient information, including but not limited to the following logic: If the location to be detected is within a narrow cavity, such as the bronchus or ureter, a single-point probe should be selected first (Example 1); If the tumor morphology is predicted to be a small, raised type, select the single-point probe of Example 1; If the tumor morphology is predicted to be a diffuse flat tumor, choose the multi-point probe of Example 1 or the opening detection of Example 3; If the tumor morphology is predicted to be medium to large-sized raised type, select the loop probe of Example 2 or the clamp detection of Example 3; If the tumor morphology is predicted to be a large-area flat type or ulcer type, choose the multi-point probe of Example 1 or the opening detection of Example 3; After the software system outputs adaptation suggestions, doctors can manually adjust them based on clinical experience to confirm the final probe type.

[0046] S3: Preoperative preparation: Select the corresponding probe based on the adaptation results, and connect the detection circuit of the control unit to the power connector 211 connected to the corresponding probe; Start the control unit and check whether the power supply and signal transmission of the equipment are normal; control the extension, rotation and expansion of the probe through the operating terminal to ensure that the mechanical movement is flexible and that the electrodes are free from short circuits or open circuits.

[0047] S4: Intracavitary detection procedure: The doctor holds the operating terminal and, using existing medical techniques and methods, slowly inserts catheter 1 and the probe into the patient's cavity, controlling the probe through the operating terminal to complete the detection: The rotating connecting sleeve 202 drives the pull rope 3 and the probe to rotate, adjusting the detection angle of the probe; pushing the movable sleeve 206 drives the slide 208 and the pull rope 3 to extend and retract, controlling the extension length of the probe and coordinating with the clamping, insertion, or removal of the probe, so that the electrode fits the tumor tissue; specifically: Single-point / multi-point probe: Push the movable sleeve 206 to extend the probe 402. The single-point probe directly penetrates the tumor tissue, while the multi-point probe extends through the guide hole 403 and fits or penetrates multiple detection points. Loop-type probe: Push the movable sleeve 206 to extend the dilation ring 502 out of the catheter 1. The dilation ring 502 automatically dilates and loops around the raised tumor, and the electrode is attached to the surface of the tumor. Clamping probe: Push the movable sleeve 206 to move the third adapter 606, which drives the movable rod 611 to expand. Then move to the detection position, and then pull the movable sleeve 206 to expand and contract the movable rod 611 to clamp it. The third electrode 612 fits against the flat tumor surface. Data acquisition: Activate the detection function of the control unit to acquire the electrochemical signal of the electrode in real time. The acquisition time is 10-30 seconds / time. The acquisition can be repeated 2-3 times as needed, and the average value is taken to reduce the error.

[0048] S5: Data Analysis and Results Output: The control unit software system processes and analyzes the acquired electrochemical signals: Signal preprocessing: Wavelet threshold denoising is used to remove noise (such as body fluid interference and electrode contact noise) from the signal to ensure signal purity; Feature extraction: Extracting characteristic parameters of the signal (such as peak impedance spectrum, peak current of the volt-ampere curve, and half-wave potential); Pattern recognition: Input the feature parameters into a preset machine learning model and compare them with the feature databases of normal tissue, benign tumors, and malignant tumors to calculate the matching probability; Results output: The test results are displayed on the touch screen, including the determination of benign or malignant nature, the degree of malignancy, and a test report is generated. The report includes patient information, test parameters, signal waveforms, analysis results, and clinical recommendations.

[0049] After the test is completed, reverse the operation end, retract the probe back into the catheter 1, and slowly remove the test unit to complete the test.

[0050] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An endoscopic electrode detection system adaptable to intracavitary tumors, characterized in that: Includes control unit and detection unit; The detection unit includes an operating end and several probes. Different probes use different detection methods. The operating end and probes are connected by a catheter (1). The catheter (1) has a pull rope (3) inside, and the pull rope (3) has an electrical circuit inside. The operating end is used to control the probe to detect intracavitary tumors through the pull rope (3). The control unit is used to input patient information, match the appropriate probe according to the patient information, and analyze the data detected by the probe to obtain the test results.

2. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 1, characterized in that: The operating end includes a handle (201), and a connecting sleeve (202) is provided at one end of the handle (201). The conduit (1) is connected to the connecting sleeve (202), and the pull rope (3) extends through the connecting sleeve (202) to the inside of the handle (201); The pull rope (3) is made of metal wire, and an insulation layer is provided between the metal wire and the built-in electrical circuit; A slide block (208) is slidably connected inside the handle (201), and a movable sleeve (206) is slidably connected to the handle (201). The slide block (208) and the movable sleeve (206) are connected by a slider (207). A groove (205) is provided on the side of the handle (201), and the slider (207) is slidably connected in the groove (205). The movable sleeve (206) is equipped with a power connector (211), the pull rope (3) is connected to the slide (208), the power connector (211) is electrically connected to the power line inside the pull rope (3), and is connected to an external control unit; The sleeve (206) is equipped with a handle (212).

3. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 2, characterized in that: the probe... Includes a first adapter (401) that is slidably connected inside the conduit (1), and the first adapter (401) is connected to the pull rope (3); The first adapter (401) has several probes (402) on the side away from the pull rope (3); the probes (402) are flexible double-sided needle core electrodes; When the probe (402) is a single probe, it extends from the center of the head of the catheter (1); When there are multiple probes (402), the head of the conduit (1) is sealed and multiple guide holes (403) are provided. When the probes (402) extend, the guide holes (403) guide the direction of the probes (402) to extend, which is used for multi-point detection. The first adapter (401) is used to connect the electrical signal of the power line to the probe (402).

4. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 2, characterized in that: The connecting sleeve (202) is rotatably connected to both the conduit (1) and the handle (201); The inner side of the connecting sleeve (202) is provided with a limiting groove (203), which is an annular groove. The end edges of the guide tube (1) and the handle (201) are provided with annular flanges that are compatible with the limiting groove (203). A gap is provided between the conduit (1) and the handle (201), and a connecting block (204) is provided inside the connecting sleeve (202). The connecting block (204) is located in the gap. A connecting hole adapted to the pull rope (3) is provided inside the connecting block (204), and the pull rope (3) slides through the connecting hole. The rotating connecting sleeve (202) drives the pull rope (3) to rotate through the connecting block (204) and the connecting hole; The slide block (208) is provided with a conductive slip ring (209), the pull rope (3) is connected to the rotating end of the conductive slip ring (209), the power connection structure of the rotating end of the conductive slip ring (209) is connected to the power line in the pull rope (3), and the power connection structure of the fixed end of the conductive slip ring (209) is connected to the power base (211). The slide (208) is provided with a limiting sleeve (210) on the side near the pull rope (3). The limiting sleeve (210) is fitted onto the outside of the pull rope (3) to limit the position of the pull rope (3).

5. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 4, characterized in that: the probe... Includes a second adapter (501) that is slidably connected inside the conduit (1), and the second adapter (501) is connected to the pull rope (3); The second adapter (501) has an expansion ring (502) on the side away from the pull rope (3), and the expansion ring (502) is an elliptical elastic ring; Several first electrodes (503) are provided on the inner side of the expansion ring (502); or Several second electrodes (504) are provided on the outer side of the expansion ring (502); The second adapter (501) is used to connect the power line to the first electrode (503) or the second electrode (504) for electrical signal connection.

6. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 4, characterized in that: The probe includes a fixed sleeve (601) at the end of the conduit (1), a sliding sleeve (604) inside the fixed sleeve (604), a third adapter (606) inside the sliding sleeve (604), and the third adapter (606) is connected to the pull rope (3); The third adapter (606) has a fixing block (607) on the side away from the pull rope (3). The fixing block (607) is rotatably connected to two rotating seats (610) through a fixing shaft (609). The rotating seat (610) is provided with a movable rod (611), and a third electrode (612) is provided at the end of the movable rod (611) away from the third adapter (606); the third adapter (606) is used to connect the electrical signal between the power line and the third electrode (612); The rotating seat (610) has a guide block (613) on its side and a guide groove (614) on the inner side of the sliding sleeve (604). The guide block (613) is slidably connected to the inside of the guide groove (614). When the pull rope (3) moves the third adapter (606) to the outside of the guide tube (1), the third adapter (606) slides relative to the sliding sleeve (604). The guide groove (614) is used to guide the guide block (613) to rotate relative to the fixed shaft (609) during the sliding process. During this process, the guide block (613) drives the rotating seat (610) and the movable rod (611) to rotate.

7. The endoscopic electrode detection system adaptable to intracavitary tumors according to claim 6, characterized in that: A fixing ring (602) is provided at one end of the fixing sleeve (601) near the conduit (1), and a sliding sleeve (604) is slidably connected to the inside of the fixing sleeve (601). A spring (603) is provided between the sliding sleeve (604) and the fixing ring (602). A limiting ring (605) is provided at one end of the sliding sleeve (604) near the conduit (1), and the pull rope (3) slides through the limiting ring (605). The third adapter (606) is slidably connected to the inside of the sliding sleeve (604); A power connection mechanism (608) is provided between the rotating seat (610) and the fixed seat (608), and the third electrode (612) is electrically connected to the third adapter seat (606) through the power connection mechanism (608); A limiting plate (615) is provided on the side of the fixed sleeve (601) away from the conduit (1). The limiting plate (615) is annular and is used to restrict the sliding sleeve (604) from sliding out of the fixed sleeve (601).

8. A detection method for an endoscopic electrode detection system adaptable to intracavitary tumors as described in any one of claims 1-7, characterized in that: Includes the following steps: S1. Enter the patient's information according to the patient's condition; S2. Analyze and adapt the probe to the patient based on the entered information; S3. Select the appropriate probe based on the analysis results and make preoperative preparations; S4. The probe is used to detect the area to be detected inside the patient's cavity, and the detection data is transmitted to the control unit. S5. Analyze the inspection data to obtain the inspection results.

9. The detection method of the endoscopic electrode detection system adaptable to intracavitary tumors according to claim 8, characterized in that: The patient's information includes their gender, age, height, weight, medical history, allergy history, the location of the test, and the intracavitary testing environment; The probes include clamp-on probes, collar probes, single-point probes, and multi-point probes.

10. The detection method of an endoscopic electrode detection system adaptable to intracavitary tumors according to claim 8, characterized in that: in During the detection process, the operating end controls the probe to clamp the tissue inside the cavity, snare the tissue inside the cavity, or insert the probe into the tissue inside the cavity at one or multiple points by means of extension and retraction. Then, the corresponding tissue inside the cavity is detected by the electrodes of the probe. The operator controls the probe rotation by rotating it to adjust the detection position.

Images