Polyp marking method under enteroscope

Abstract

The invention belongs to the technical field of medical instruments, and discloses a polyp marking method under an enteroscope, which comprises the following steps: the enteroscope examines the intestinal tract of a patient for the first time, determines the first position of a to-be-marked polyp, and pushes a marking assembly containing an absorbable suture and a top connecting clamping piece to the first position through an endoscopic pipeline after the to-be-marked polyp is found; the clamping piece is clamped on the surface of the to-be-marked polyp, meanwhile, the absorbable suture is arranged at a second position in the intestinal tract, during secondary examination, the clamping piece is tracked according to the absorbable suture at the second position, and the position of the to-be-marked polyp is determined. According to the method, multi-dimensional marking is achieved, a doctor can more quickly and accurately find out polyps, blind finding is avoided, the positioning accuracy is improved, the time and energy for finding out the polyps are shortened, discomfort and pain of a patient are relieved, repeated stimulation injuries of intestinal mucosa are reduced, mistaken cutting and missing cutting are avoided, and the treatment accuracy and effectiveness are improved; the invention provides a reliable means for diagnosis and treatment of intestinal polyp, and has important clinical application value.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a method for marking polyps under colonoscopy. Background Art

[0002] In clinical medicine, colonoscopy is an important means of detecting intestinal polyps. For safety reasons, patients usually need to be hospitalized and then removed after polyps are found during colonoscopy. However, in actual clinical work, there are some thorny problems.

[0003] When polyps are found during the first colonoscopy, doctors usually use the "**cm from the anus" method to preliminarily mark the location of the polyps. This method seems simple and direct, but it exposes many disadvantages in the subsequent second colonoscopy. Since the intestine is a complex physiological structure with a certain elasticity and peristalsis, the position of the polyp in the intestine may change. Moreover, it is difficult for doctors to accurately find polyps during the second colonoscopy by relying solely on a single-dimensional mark of the distance from the anus. In addition, the inside of the intestine is not uniform, and factors such as the morphology, folds, and intestinal contents of different intestinal segments will affect the search for polyps, which in turn causes doctors to often not find polyps during the second colonoscopy, or to spend a lot of time looking for them. This not only increases the patient's pain and examination time, but also brings many inconveniences to the endoscopist's clinical work, seriously affecting the accuracy and safety of the operation. At the same time, it will also increase the risk of intestinal damage due to multiple attempts to find them. Summary of the invention

[0004] The main purpose of the present invention is to provide a method for marking polyps under colonoscopy, aiming to solve the technical problem that the existing polyps only rely on a single-dimensional mark of the distance from the anus when positioning and marking. During the second colonoscopy, it is difficult for doctors to accurately find the polyps, which increases the patient's pain and examination time, and affects the accuracy and safety of the operation.

[0005] In order to achieve the above-mentioned object of the invention, the present invention proposes a method for marking polyps under colonoscopy, comprising:

[0006] Firstly inspect the patient's intestine by a pre-set colonoscopy to determine a first location of the polyp to be marked in the intestine;

[0007] After the polyp to be marked is found, a preset marking component is pushed to the first position of the intestine through the endoscope channel of the enteroscope, wherein the marking component includes an absorbable suture and a clamp, and the clamp is connected to the top of the absorbable suture;

[0008] Clamping the clamping member on the surface of the polyp to be marked at the first position, and placing the absorbable suture at a second position in the intestine;

[0009] When the colonoscope performs a second inspection of the patient's intestine, the clamp is tracked according to the absorbable suture at the second position to determine the polyp to be marked located at the first position.

[0010] Furthermore, the step of first examining the patient's intestines through a preset colonoscopy includes:

[0011] Inserting the colonoscope into the intestine of the patient at a first speed of 1-1.5 cm per minute, and detecting the patient's vital signs, wherein the vital signs include heart rate, blood pressure and respiratory rate;

[0012] If the patient's heart rate exceeds the normal range of ±20 times / minute, the systolic blood pressure exceeds the normal range of ±20 mmHg, the diastolic blood pressure exceeds the normal range of ±10 mmHg, and the respiratory rate exceeds the normal range of ±5 times / minute, stop inserting the colonoscope.

[0013] Furthermore, the step of determining a first position of the polyp to be marked in the intestine comprises:

[0014] After the enteroscope enters the intestine, the enteroscope is advanced upward from the rectum at the first speed for inspection according to the anatomical structure of the intestine;

[0015] When the colonoscope is located at the bend and fold of the intestine, the intestinal wall is observed from multiple angles by rotating the body of the colonoscope and / or adjusting the lens angle of the colonoscope;

[0016] When the colonoscope observes a diseased tissue suspected to be the polyp to be marked in the intestine, the morphology, color and vascular distribution of the diseased tissue are observed through the magnification function of the colonoscope, and it is determined whether the diseased tissue is the polyp to be marked;

[0017] If so, the first position of the polyp to be marked in the intestine is recorded, wherein the first position includes measuring the distance between the polyp to be marked and the anus, and the position information of the polyp to be marked on the circumference of the intestine, and the position information is based on the cross-section of the intestine as a reference and uses the clock orientation method to describe the position of the polyp to be marked.

[0018] Furthermore, after the polyp to be marked is found, the step of pushing the preset marking component to the first position of the intestine through the endoscope channel of the colonoscope includes:

[0019] According to the inner diameter and length of the endoscope channel and the pre-stored reference value of the intestinal internal resistance, the control system of the colonoscope calculates the initial setting values ​​of the pushing force and speed of the pushing device of the colonoscope;

[0020] The marking component is pushed by the pushing device according to the initial setting value, and the imaging system of the colonoscope provides an endoscopic image, so that the marking component moves along a predetermined path;

[0021] If the marking component deviates from the predetermined path, fine-tuning is performed by 5°-10° at a time according to the angle and direction of the deviation so as to return the marking component to the predetermined path;

[0022] When the distance between the marking component and the polyp to be marked at the first position is less than a preset value, the detection system of the colonoscope reduces the pushing speed of the pushing device to 0.1-0.3 cm per second according to the distance between the marking component and the polyp to be marked.

[0023] Furthermore, the step of pushing the marking component according to the initial setting value by the pushing device includes:

[0024] Based on the pushing process of the pushing device, determining whether the enteroscope encounters stenosis or obstruction of the intestine;

[0025] If yes, the gas injection expansion device of the enteroscope is activated according to the preset pressure, flow rate and temperature of the preset gas injected;

[0026] Inject the preset gas into the narrow or obstructed area of ​​the intestine at a rate of 2-3 ml per second, and determine whether the narrow or obstructed condition still exists in the intestine after the intestinal gas injection expansion;

[0027] If yes, inserting a predetermined guide wire into the intestine through the endoscope channel, wherein the guide wire advances along the central axis of the intestine at a speed of 0.5-1 cm per second;

[0028] After the guidewire passes through the stenosis or obstruction area, the marking assembly is pushed along the path of the guidewire to the first position of the intestine at the initial setting value.

[0029] Furthermore, the step of clamping the clamping member on the surface of the polyp to be marked located at the first position includes:

[0030] The operating arm of the colonoscope moves the clamping member to the surface of the polyp to be marked, so that the clamping surface of the clamping member is parallel to and in contact with the surface of the polyp to be marked;

[0031] When the diameter of the polyp to be marked is less than 1 cm, the control system of the colonoscope adjusts the angle of the clamping member so that the clamping member is perpendicular to the surface of the polyp to be marked;

[0032] When the diameter of the polyp to be marked is greater than 1 cm, the control system of the colonoscope adjusts the angle of the clamping member so that an angle of 30°-60° is formed between the clamping member and the surface of the polyp to be marked;

[0033] When the clamping member clamps the surface of the polyp to be marked, judging by the imaging system of the colonoscope whether the color and / or texture of the polyp to be marked changes;

[0034] If so, the colonoscope sends out an alarm signal and stops the clamping operation.

[0035] Further, after the step of simultaneously placing the absorbable suture at the second position in the intestine, the method further comprises:

[0036] Based on the imaging system, the absorbable suture at the second position is collected with images to be identified at preset intervals;

[0037] By comparing the images to be identified collected before and after, analyzing the characteristic differences between the absorbable suture and the intestinal tissue surrounding the absorbable suture, determining whether the absorbable suture has a tendency to be displaced or entangled;

[0038] If so, the operating arm of the colonoscope pulls the absorbable suture according to the preset pulling force so that the absorbable suture is adjusted to the second position.

[0039] Furthermore, the step of tracking the clamp according to the absorbable suture at the second position to determine the polyp to be marked located at the first position includes:

[0040] Using the enteroscope to search for the absorbable suture from the starting point of the intestine upwards section by section at the first speed;

[0041] When searching for the absorbable suture, the colonoscope determines whether the absorbable suture is found by adjusting the lighting intensity, lighting color and imaging mode;

[0042] If yes, the colonoscope determines whether the shape and position of the polyp to be marked clamped by the clamp connected to the absorbable suture have changed;

[0043] If so, the treatment plan is adjusted according to the changed morphology and position of the polyp to be marked.

[0044] Furthermore, the absorbable suture has a length of 5-10 cm.

[0045] Furthermore, the clamping member is a titanium clamp.

[0046] Beneficial effects:

[0047] A method for marking polyps under colonoscopy of the present invention comprises: first examining the intestines of a patient through a preset colonoscope to determine a first position of the polyp to be marked in the intestine; after the polyp to be marked is found, pushing a preset marking component to the first position of the intestine through the endoscopic channel of the colonoscope, wherein the marking component comprises an absorbable suture and a clamp, and the clamp is connected to the top of the absorbable suture; clamping the clamp on the surface of the polyp to be marked at the first position, and placing the absorbable suture at a second position in the intestine; when the colonoscope examines the patient's intestine for the second time, tracking the clamp according to the absorbable suture at the second position to determine the polyp to be marked at the first position. Therefore, by placing the absorbable suture at the second position in the intestine and clamping the clamp on the surface of the polyp to be marked, multi-dimensional marking of the polyp is achieved. During the second colonoscopy, the doctor can not only find the polyp to be marked more quickly and accurately based on the second position of the absorbable suture, but also based on the connection between the clamp and the polyp to be marked, thereby avoiding blindly searching for the polyp to be marked, improving the accuracy of locating the polyp to be marked, reducing the time and energy wasted in searching for the polyp to be marked, and at the same time reducing the discomfort and pain caused by long examination time, reducing multiple stimulation and damage to the intestinal mucosa caused by repeated operations, avoiding miscutting or missed cutting due to positioning errors, and improving the accuracy and effectiveness of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a flow chart of a method for marking polyps under colonoscopy according to an embodiment of the present invention;

[0049] Figure 2 Schematic diagram of the overall structure of a colonoscopic marking assembly according to an embodiment of the present invention.

[0050] in:

[0051] 1. Marking component; 10. Absorbable suture; 11. Clamping piece.

[0052] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] Reference Figure 1-Figure 2 This embodiment provides a colonoscopy polyp marking method, including:

[0058] S1: first examining the patient's intestine through a preset colonoscopy to determine the first position of the polyp to be marked in the intestine;

[0059] S2: After the polyp to be marked is found, a preset marking component 1 is pushed to the first position of the intestine through the endoscope channel of the colonoscope, wherein the marking component 1 includes an absorbable suture 10 and a clamp 11, and the clamp 11 is connected to the top of the absorbable suture 10;

[0060] S3: clamping the clamping member 11 on the surface of the polyp to be marked at the first position, and placing the absorbable suture 10 at a second position in the intestine;

[0061] S4: When the colonoscope performs a second inspection on the patient's intestine, the clamp 11 is tracked according to the absorbable suture 10 at the second position to determine the polyp to be marked located at the first position.

[0062] In the above embodiment, for step S1, first, before the colonoscopy, the patient is asked to make adequate intestinal preparations. The patient needs to take intestinal cleansers in advance as required to empty the feces and residues in the intestine to ensure that the colonoscope can clearly observe the internal situation of the intestine. During the examination, the patient takes a suitable position, usually the left side lying position, and the colonoscope is slowly inserted into the patient's anus, and air is injected while advancing to appropriately expand the intestine. During the advancement of the colonoscope in the intestine, the shape, color and texture of the intestinal mucosa are carefully observed through the lens. When polyps are found, the positioning device and imaging system on the colonoscope are used to determine the specific position of the polyp in the intestine. The anatomical landmarks of the intestine, such as intestinal folds and blood vessel direction, can be observed to assist in judging the position of the polyp. At the same time, the depth, angle and other data of the colonoscope insertion are recorded to accurately determine the first position of the polyp. In addition, advanced imaging technologies, such as high-definition endoscopes and chromoendoscopy, can be used to more clearly display the shape and boundaries of the polyps, thereby further improving the accuracy of position determination.

[0063] For step S2, after the polyp to be marked is found through the colonoscope, the marking component 1 is pre-placed at the entrance of the endoscope channel of the colonoscope, the colonoscope is carefully operated to ensure that the endoscope channel is in an unobstructed state, and then the marking component 1 is slowly pushed to the first position in the intestine through the pushing device of the endoscope channel. During the pushing process, the imaging screen of the colonoscope is closely watched to ensure that the marking component 1 accurately moves toward the polyp position. When the marking component 1 is close to the polyp position, the instrument control device at the front end of the colonoscope is used to accurately push the clamp 11 out of the endoscope channel. The middle clamp 11 is a titanium clip. After the clamp 11 is pushed out, it is used to clamp the intestinal mucosa near the polyp through delicate operation. Since the clamp 11 is connected to the top of the absorbable suture 10, after clamping the mucosa, the absorbable suture 10 is also fixed at the first position of the intestine. The length of the absorbable suture 10 is 5-10 cm. Finally, the position of the marking component 1 is observed again through the colonoscopy to ensure that the absorbable suture 10 and the clamp 11 are stably fixed at the polyp position, providing a clear mark for subsequent treatment or follow-up.

[0064] For step S3, after pushing the marking component 1 to the first position in the intestine, start operating the clamp 11, and carefully control the clamp 11 through the operating instrument at the front end of the colonoscope so that it can accurately contact the surface of the polyp to be marked at the first position, adjust the angle and strength of the clamp 11 to ensure that the polyp can be firmly clamped, and after clamping the surface of the polyp, place it at the second position in the intestine. This second position can be a healthy intestinal mucosa at a certain distance from the polyp, or a position predetermined according to the specific situation. In the process of placing the absorbable suture 10, it is necessary to avoid causing additional damage to the intestinal mucosa. In order to ensure the stability of the clamping and the correct placement of the absorbable suture 10, the entire operation process is carefully observed through the imaging system of the colonoscope. If it is found that the clamping is not firm or the suture position is inappropriate, it will be adjusted in time. At the same time, the patient's vital signs are observed to ensure that the patient has no abnormal reactions during the operation. After completing the clamping and suture placement, the accuracy and stability of the mark are confirmed again to provide a reliable mark for subsequent treatment.

[0065] For step S4, when the patient needs to undergo a second colonoscopy examination, the patient's intestine is prepared as in the first examination to ensure a clear view in the intestine, and then the colonoscope is slowly inserted into the patient's intestine. During the advancement of the colonoscope, special attention is paid to the second position in the intestine. When it reaches the vicinity of the second position, carefully look for the previously placed absorbable suture 10. Since the absorbable suture 10 has certain characteristics, it can be clearly distinguished by the imaging system of the colonoscope. Once the absorbable suture 10 is found, it is tracked along the direction of the suture. Since the absorbable suture 10 is connected to the clamp 11, the clamp 11 can be found by tracking the suture. The clamp 11 is clamped on the surface of the polyp to be marked at the first position, so the position of the polyp can be accurately determined. During the tracking process, the angle and direction of the colonoscope are carefully adjusted according to the anatomical structure of the intestine and the previous records. If you encounter intestinal folds or bends, you should be more cautious to ensure that you will not miss the absorbable suture 10 and the clamp 11. Finally, the polyp to be marked at the first position is successfully determined, providing an accurate basis for further diagnosis or treatment.

[0066] In one embodiment, the step of first examining the patient's intestines through a preset colonoscopy includes:

[0067] Inserting the colonoscope into the intestine of the patient at a first speed of 1-1.5 cm per minute, and detecting the patient's vital signs, wherein the vital signs include heart rate, blood pressure and respiratory rate;

[0068] If the patient's heart rate exceeds the normal range of ±20 times / minute, the systolic blood pressure exceeds the normal range of ±20 mmHg, the diastolic blood pressure exceeds the normal range of ±10 mmHg, and the respiratory rate exceeds the normal range of ±5 times / minute, stop inserting the colonoscope.

[0069] In the above embodiment, the colonoscope is slowly inserted into the patient's intestine at a first speed of 1-1.5 cm per minute. During the insertion process, the vital signs monitoring device equipped on the colonoscope will detect the patient's vital signs such as heart rate, blood pressure and respiratory rate in real time. The colonoscope will continuously transmit data to the monitoring device, and the monitoring device will analyze and judge the data. If it is found that the patient's heart rate exceeds the normal range of ±20 beats / minute, for example, the normal heart rate is 70 beats / minute, if the heart rate is detected to be lower than 50 beats / minute or higher than 90 beats / minute; or the systolic blood pressure exceeds the normal range of ±20 mmHg, for example, the normal systolic blood pressure is 120 mmHg, and the systolic blood pressure is detected to be lower than 100 mmHg or higher 140mmHg; or the diastolic blood pressure exceeds the normal range of ±10mmHg, or the respiratory rate exceeds the normal range of ±5 times / minute, the colonoscope will immediately receive a command to stop insertion. Once the stop command is received, the colonoscope will stop inserting forward. At this time, according to the changes in the patient's vital signs, appropriate measures will be taken. The examination may be suspended to allow the patient to rest for a period of time. After the vital signs return to normal, consider whether to continue inserting the colonoscope. Alternatively, the doctor will conduct further evaluation and diagnosis of the patient to determine whether it is appropriate to continue the colonoscopy. In short, during the insertion of the colonoscope, the patient's life safety is always the primary consideration, and the operation is adjusted by real-time monitoring of vital signs.

[0070] In one embodiment, the step of determining a first position of a polyp to be marked in the intestine comprises:

[0071] After the enteroscope enters the intestine, the enteroscope is advanced upward from the rectum at the first speed for inspection according to the anatomical structure of the intestine;

[0072] When the colonoscope is located at the bend and fold of the intestine, the intestinal wall is observed from multiple angles by rotating the body of the colonoscope and / or adjusting the lens angle of the colonoscope;

[0073] When the colonoscope observes a diseased tissue suspected to be the polyp to be marked in the intestine, the morphology, color and vascular distribution of the diseased tissue are observed through the magnification function of the colonoscope, and it is determined whether the diseased tissue is the polyp to be marked;

[0074] If so, the first position of the polyp to be marked in the intestine is recorded, wherein the first position includes measuring the distance between the polyp to be marked and the anus, and the position information of the polyp to be marked on the circumference of the intestine, and the position information is based on the cross-section of the intestine as a reference and uses the clock orientation method to describe the position of the polyp to be marked.

[0075] In the above embodiment, after the colonoscope enters the intestine, it is advanced upward in an orderly manner starting from the rectum at a first speed of 1-1.5 cm per minute in strict accordance with the anatomical structure of the intestine. The lighting device at the front end of the colonoscope illuminates the inside of the intestine, and its imaging system is like a keen eye, clearly presenting every detail in the intestine on the display screen. During this process, the colonoscope will carefully feel the internal environment of the intestine, and will appropriately adjust the force and angle of advancement when encountering resistance to ensure the safety and smooth progress of the examination; when the colonoscope comes to the bends and wrinkles of the intestine, it will give full play to its flexibility, and the mechanical device inside the colonoscope will drive the mirror body to rotate and approach the intestinal wall from different directions. At the same time, the lens angle of the colonoscope will also be accurately adjusted, and the lens can swing freely up, down, left, and right to observe the intestinal wall in all directions. Even tiny changes hidden deep in the wrinkles can be clearly captured.

[0076] Once the colonoscope finds diseased tissue suspected of being a polyp to be marked in the intestine, it will immediately start the magnification function. At this time, the colonoscope will amplify and clearly present the details of the diseased tissue, such as shape, color, and blood vessel distribution. Carefully observe the shape of the diseased tissue through the colonoscope to see whether it is a regular circle, oval, or irregular shape; whether the color is light red similar to the surrounding mucosa, or a darker red, purple, or even grayish white; whether the blood vessel distribution is uniform and orderly, or disordered and distorted. Through comprehensive analysis of these characteristics, it is determined whether the diseased tissue is a polyp to be marked; if it is determined that the diseased tissue found is a polyp to be marked, the colonoscope will begin to record the first position of the polyp in the intestine. First, the colonoscope will use the built-in measuring device to accurately Accurately measure the distance between the polyp and the anus. This distance is like a coordinate, which provides an important reference for subsequent treatment and follow-up. At the same time, for the location information of the polyp on the intestinal circumference, the colonoscope will use the cross-section of the intestine as a reference and describe it using the clock orientation method. For example, if the polyp is located at the 4 o'clock direction of the intestinal cross-section, the colonoscope will accurately record this position. Such detailed location information can help doctors accurately find the polyp in subsequent treatment and formulate a more accurate treatment plan. Through this step, the colonoscope can comprehensively, carefully and accurately examine the internal situation of the intestine, discover and determine the location of the polyp to be marked, which will help improve the early diagnosis rate and treatment effect of intestinal diseases, reduce the pain of patients, and improve the quality of life of patients.

[0077] Reference Figure 2 In one embodiment, after the polyp to be marked is found, the step of pushing the preset marking component 1 to the first position of the intestine through the endoscope channel of the colonoscope comprises:

[0078] According to the inner diameter and length of the endoscope channel and the pre-stored reference value of the intestinal internal resistance, the control system of the colonoscope calculates the initial setting values ​​of the pushing force and speed of the pushing device of the colonoscope;

[0079] The marking component 1 is pushed by the pushing device according to the initial setting value, and the imaging system of the colonoscope provides an endoscopic image, so that the marking component 1 moves along a predetermined path;

[0080] If the marking component 1 deviates from the predetermined path, fine adjustment is performed at a range of 5°-10° each time according to the angle and direction of the deviation, so that the marking component 1 returns to the predetermined path;

[0081] When the distance between the marking component 1 and the polyp to be marked at the first position is less than a preset value, the detection system of the colonoscope reduces the pushing speed of the pushing device to 0.1-0.3 cm per second according to the distance between the marking component 1 and the polyp to be marked.

[0082] In the above embodiment, after the polyp to be marked is found, the control system of the colonoscope performs precise calculations based on the inner diameter and length of the endoscope tube and the pre-stored reference value of the intestinal internal resistance. The inner diameter of the endoscope tube determines the size of the space through which the marking component 1 passes, and the length affects the difficulty of pushing. The reference value of the intestinal internal resistance is based on previous inspection experience and data. By comprehensively considering these factors, the control system can calculate the initial setting value of the pushing force and speed of the pushing device. This initial setting value is like a starting point plan for the pushing journey of the marking component 1 to ensure that the pushing process can start smoothly; then, the pushing device of the colonoscope starts to work according to the initial setting value, pushing the marking component 1 along the intestine. At the same time, the imaging system of the colonoscope provides endoscopic images in real time, allowing the doctor to clearly see the advancement of the marking component 1 in the intestine. In this process, the pushing device and the imaging system work closely together to ensure that the marking component 1 can accurately move toward the target position.

[0083] However, during the pushing process, the marking component 1 may deviate from the predetermined path. At this time, the colonoscope will make fine adjustments according to the angle and direction of the deviation, and the amplitude of each fine adjustment is 5°-10°. This can ensure that the marking component 1 can gradually return to the predetermined path, and will not cause unnecessary stimulation or damage to the intestine due to excessive adjustment. The colonoscope will continuously monitor the position of the marking component 1 and make multiple fine adjustments as needed until the marking component 1 returns to the correct track; when the distance between the marking component 1 and the polyp to be marked at the first position is less than the preset value, the detection system of the colonoscope begins to work. The detection system can accurately measure the distance between the marking component 1 and the polyp to be marked, and based on this distance , the pushing speed of the pushing device will be reduced to 0.1-0.3 cm per second. For example, assuming the preset value is 2 cm, when the detection system of the colonoscope detects that the distance between the marking component 1 and the polyp to be marked is 1.5 cm, the pushing speed of the pushing device will be reduced accordingly. At this time, the detection system determines to reduce the pushing speed to 0.2 cm per second. In this way, the marking component 1 will approach the polyp at a slower speed. If the distance between the marking component 1 and the polyp is further reduced, such as becoming 0.5 cm, the pushing speed may be adjusted again, such as being reduced to 0.1 cm per second. Such a slow pushing speed allows the marking component 1 to approach the polyp more smoothly, avoiding accidental damage to the polyp or the intestine due to excessive speed. Through this series of steps, the colonoscope can accurately and safely push the marking component 1 to the first position of the polyp to be marked in the intestine, effectively overcoming the complex environment and various uncertain factors inside the intestine. This not only provides a reliable basis for subsequent polyp marking and treatment, but also minimizes damage to the patient's intestine and improves the success rate of examination and treatment. At the same time, it also allows doctors to locate polyps more accurately.

[0084] Reference Figure 2 In one embodiment, the step of pushing the marking component 1 according to the initial setting value by the pushing device includes:

[0085] Based on the pushing process of the pushing device, determining whether the enteroscope encounters stenosis or obstruction of the intestine;

[0086] If yes, the gas injection expansion device of the enteroscope is activated according to the preset pressure, flow rate and temperature of the preset gas injected;

[0087] Inject the preset gas into the narrow or obstructed area of ​​the intestine at a rate of 2-3 ml per second, and determine whether the narrow or obstructed condition still exists in the intestine after the intestinal gas injection expansion;

[0088] If yes, inserting a predetermined guide wire into the intestine through the endoscope channel, wherein the guide wire advances along the central axis of the intestine at a speed of 0.5-1 cm per second;

[0089] After the guide wire passes through the narrow or obstructed area, the marking component 1 is pushed along the path of the guide wire to the first position of the intestine at the initial setting value.

[0090] In the above embodiment, the push device of the colonoscope starts to push the marking component 1 according to the initial setting value. During the pushing process, the colonoscope determines whether it encounters intestinal stenosis or obstruction by feeling the resistance change during the pushing process and the feedback of the endoscopic image. If the pushing device encounters obvious resistance during the advancement process, and the endoscopic image shows that the intestinal lumen is narrowed or there is an obstruction, then it can be determined that stenosis or obstruction is encountered. Once it is determined that intestinal stenosis or obstruction is encountered, the gas injection expansion device of the colonoscope will be started. This gas injection expansion device is like a precise regulator. It will work according to the preset pressure, flow rate and temperature of the preset gas injected. The preset gas is injected into the intestinal stenosis or obstruction area at a rate of 2-3 ml per second, wherein the preset gas is preferably carbon dioxide gas, the gas pressure is 10-15 mmHg, the gas flow rate is 2-3 ml per second, and the temperature is about 37°C close to the human body temperature. The injection of gas slowly expands the stenosis or obstruction area. During the gas injection process, the colonoscope will continue to monitor the condition of the intestine and observe the changes in the intestinal wall and the improvement of the stenosis or obstruction area through the imaging system.

[0091] After the gas is injected, the colonoscope will again determine whether the intestine is still narrow or obstructed. If the intestinal lumen becomes significantly larger and the resistance decreases after the gas injection expansion, it means that the expansion has taken effect, and the pushing device can continue to push the marking component 1. However, if the intestine is still narrow or obstructed, further measures need to be taken. When the intestinal stenosis or obstruction is not improved, the colonoscope will insert the predetermined guide wire into the intestine through the endoscope tube. The guide wire advances along the central axis of the intestine at a speed of 0.5-1 cm per second, passing through the narrow or obstructed area to open a channel for the marking component 1. When the guide wire successfully passes through the narrow or obstructed area, the marking component 1 will continue to be pushed to the first position of the intestine along the path of the guide wire at the initial setting value. In this process, the colonoscope always keeps monitoring the entire process to ensure that the marking component 1 can reach the target position safely and accurately. Through this series of steps, the colonoscope can effectively deal with complex situations such as intestinal stenosis or obstruction, ensuring that the marking component 1 can smoothly reach the first position in the intestine, which not only improves the success rate of colonoscopy and marking, but also reduces the risk of damage to the intestine.

[0092] Reference Figure 2 In one embodiment, the step of clamping the clamping member 11 on the surface of the polyp to be marked at the first position comprises:

[0093] The clamping member 11 is moved to the surface of the polyp to be marked according to the operating arm of the colonoscope, so that the clamping surface of the clamping member 11 is parallel to the surface of the polyp to be marked and contacts with each other;

[0094] When the diameter of the polyp to be marked is less than 1 cm, the control system of the colonoscope adjusts the angle of the clamp 11 so that the clamp 11 is perpendicular to the surface of the polyp to be marked;

[0095] When the diameter of the polyp to be marked is greater than 1 cm, the control system of the colonoscope adjusts the angle of the clamp 11 so that an angle of 30°-60° is formed between the clamp 11 and the surface of the polyp to be marked;

[0096] When the clamping member 11 clamps the surface of the polyp to be marked, the imaging system of the colonoscope is used to determine whether the color and / or texture of the polyp to be marked changes;

[0097] If so, the colonoscope sends out an alarm signal and stops the clamping operation.

[0098] In the above embodiment, under the precise control of the colonoscope, the clamping member 11 is slowly moved to the surface of the polyp to be marked at the first position. During the movement, the colonoscope will use its advanced positioning system and imaging system to ensure that the clamping surface of the clamping member 11 can be accurately parallel to and in contact with the surface of the polyp to be marked; when the colonoscope detects that the diameter of the polyp to be marked is less than 1 cm, the control system will issue precise instructions to adjust the angle of the clamping member 11 so that it is perpendicular to the surface of the polyp to be marked. Such angle adjustment can ensure that the clamping member 11 can grasp smaller polyps more stably, just like clamping a tiny bead vertically with tweezers, thereby increasing the accuracy and stability of clamping; if the diameter of the polyp to be marked is greater than 1 cm, the control system of the colonoscope will adjust the angle of the clamping member 11 again so that an angle of 30°-60° is formed between the clamping member 11 and the surface of the polyp to be marked. This angle setting can better adapt to the shape and structure of larger polyps, so that the clamping force is more evenly distributed on the surface of the polyp, avoiding excessive squeezing or damage to the polyp.

[0099] When the clamping member 11 clamps the surface of the polyp to be marked, the imaging system of the colonoscope will concentrate on observing whether the color and / or texture of the polyp changes. If the imaging system finds that the color of the polyp becomes darker or lighter, or the texture becomes soft or fragile, etc., the colonoscope will immediately send out an alarm signal. This alarm signal is like an emergency brake command, which stops the clamping operation instantly to prevent further damage to the polyp. For example: the original color value of the polyp (measured in a certain color model, such as the RGB model) is (230, 120, 120), and after clamping, it becomes (255, 0, 0), which may indicate that the polyp is over-squeezed and the blood circulation is abnormal; another situation is that the color of the polyp turns white. Assuming that the brightness value of the normal polyp color (such as the V value in the HSV color model) is between 70-80, and during the clamping process, the brightness value drops to 30-40, which may mean that the blood supply of the polyp tissue is severely obstructed, or local ischemia occurs. In addition, by measuring the roughness of the surface of the polyp, under normal circumstances, the roughness value may be between 0.1-0.2, and after clamping, the roughness increases to more than 0.5, which indicates that the texture may become rougher, which may be due to excessive clamping force causing deformation of the polyp tissue; the displacement of the polyp before and after clamping can also be measured. Under normal circumstances, after the clamping force is released, the polyp will recover to more than 90% of its original position. If the recovery degree is less than 50%, it may mean that the texture of the polyp has been greatly affected. Through this series of delicate operating steps, the colonoscope can accurately adjust the angle of the clamp 11 according to the different sizes of the polyps to be marked, and achieve safe and effective clamping, which not only helps to accurately mark the location of the polyp, but also provides reliable protection for subsequent diagnosis and treatment. The whole process reflects the high precision and intelligence of the colonoscope operation, protects the intestinal health of the patient to the greatest extent, and improves the accuracy and safety of intestinal disease diagnosis and treatment.

[0100] Reference Figure 2 In one embodiment, after the step of simultaneously placing the absorbable suture 10 at the second position in the intestine, the method further comprises:

[0101] Based on the imaging system, the absorbable suture 10 at the second position is collected with images to be identified at preset intervals;

[0102] By comparing the images to be identified collected before and after, analyzing the characteristic differences between the absorbable suture 10 and the intestinal tissue surrounding the absorbable suture 10, it is determined whether the absorbable suture 10 has a tendency to be displaced or entangled;

[0103] If so, the operating arm of the colonoscope pulls the absorbable suture 10 according to the preset pulling force, so that the absorbable suture 10 is adjusted to the second position.

[0104] In the above embodiment, after the absorbable suture 10 is placed at the second position in the intestine, the imaging system of the colonoscope collects the image to be identified of the absorbable suture 10 at the second position at a preset interval. This preset interval can be set according to actual conditions, for example, an image is collected every 0.5 seconds or 1 second. During the collection process, the imaging system will use its high-resolution camera and advanced optical technology to ensure that clear and accurate images of the absorbable suture 10 and its surrounding intestinal tissue are obtained. These images contain rich details, such as the shape, position, color of the absorbable suture 10, and the texture, color and other information of the surrounding intestinal tissue. After acquiring the image to be identified, the image processing system inside the colonoscope will compare and analyze the images acquired before and after. It will carefully analyze the characteristic differences between the absorbable suture 10 and the surrounding intestinal tissue. First, the system will pay attention to the position change of the absorbable suture 10. If there is an obvious deviation in the position of the absorbable suture 10 in the two images before and after, this may mean that it has a tendency to move. Secondly, the system will check whether the morphology of the absorbable suture 10 has changed, such as whether there are signs of bending, twisting or entanglement. In addition, the morphology and position changes of the intestinal tissue around the absorbable suture 10 will be compared. If it is found that the intestinal tissue is pulled or squeezed by the absorbable suture 10, it can also be used as a basis for judging the tendency of the absorbable suture 10 to move or entangle.

[0105] If it is determined that the absorbable suture 10 has a tendency to be displaced or entangled, the colonoscope operating arm pulls the absorbable suture 10 according to a preset tension. The magnitude of the preset tension is set according to the material of the absorbable suture 10, the condition of the intestine, and the degree of displacement or entanglement. The operating arm gently pulls the absorbable suture 10 to gradually adjust it to the second position. During the adjustment process, the imaging system continuously monitors the position and morphological changes of the absorbable suture 10 to ensure the accuracy and safety of the adjustment. Once the absorbable suture 10 returns to the correct position, the operating arm stops pulling and the imaging system stops adjusting. The system will continue to monitor it to prevent displacement or entanglement from occurring again. For example, for a 0.2 mm absorbable suture 10, the preset tension can be set to 0.5 Newtons, and for a 0.5 mm absorbable suture 10, the preset tension may be set to 1 Newton. The time for the operating arm to pull the suture can also be controlled, such as pulling the suture at a speed of 0.1 cm per second for 2-3 seconds, then pausing, and observing the position of the suture through the imaging system again to see if it has been adjusted to the second position. If further adjustment is required, repeat the above operation. Through this series of steps, the colonoscope can effectively monitor the position and state of the absorbable suture 10 in the intestine, and make timely adjustments to possible displacement or entanglement, which not only ensures that the absorbable suture 10 can accurately mark the position of the polyp to be marked, providing a reliable basis for subsequent diagnosis and treatment, but also reduces the risk of intestinal damage caused by suture displacement or entanglement.

[0106] Reference Figure 2 In one embodiment, the step of tracking the clamp 11 according to the absorbable suture 10 at the second position to determine the polyp to be marked at the first position includes:

[0107] Using the enteroscope to search for the absorbable suture 10 from the starting point of the intestine upwards section by section at the first speed;

[0108] When searching for the absorbable suture 10, the colonoscope determines whether the absorbable suture 10 is found by adjusting the lighting intensity, lighting color and imaging mode;

[0109] If yes, the colonoscope determines whether the shape and position of the polyp to be marked clamped by the clamp 11 connected to the absorbable suture 10 have changed;

[0110] If so, the treatment plan is adjusted according to the changed morphology and position of the polyp to be marked.

[0111] In the above embodiment, the colonoscope starts from the starting point of the intestine at a first speed and searches for the absorbable suture 10 upwards section by section. It slowly moves along the natural path of the intestine. In this process, the intestine adapts to the environment of different intestinal parts by adjusting the lighting intensity. For example, in the deeper part of the intestine, the lighting intensity will be enhanced to more clearly illuminate the surrounding tissues and find the trace of the absorbable suture 10. Assuming that at the starting point of the intestine, the normal lighting intensity is set to 100 lux. When the colonoscope enters the deeper and more shadowed area of ​​the intestine, the lighting intensity will be increased to 150 lux. On the contrary, in some areas where the intestinal mucosa is more sensitive to light, the lighting intensity may be reduced to 80 lux to avoid over-stimulation of the intestinal mucosa, while the presence of the absorbable suture 10 can still be observed. At the same time, the colonoscope will also adjust the lighting color. Different colors can highlight different tissue features to help better identify the absorbable suture 10. For example, when the absorbable suture 10 has a specific fluorescent property, a specific wavelength of blue light or green light can be used for identification. Illumination: assuming that blue light with a wavelength of 450-490 nanometers is used for illumination, the absorbable suture 10 will emit a specific fluorescent signal, which is in sharp contrast with the surrounding tissues. When the absorbable suture 10 is dark brown, orange light with a wavelength of 590-620 nanometers is used for illumination. The color difference between the suture and the surrounding intestinal tissues is more obvious and easier to identify. In addition, the colonoscope will switch imaging modes, such as switching from ordinary imaging mode to high-contrast imaging mode or fluorescent imaging mode. In high-contrast imaging mode, the grayscale value of the absorbable suture 10 may be adjusted to 200, while the grayscale value of the surrounding tissues is between 50-100, so that the sutures can be clearly distinguished. If the absorbable suture 10 is specially treated and has a fluorescent marker, in the fluorescent imaging mode, the colonoscope will emit excitation light of a specific wavelength to make the suture fluoresce. Assuming that the excitation light wavelength is 365 nanometers, the absorbable suture 10 will emit fluorescence with a wavelength of 450 nanometers after receiving the excitation light. In these ways, the colonoscope can more accurately determine whether the absorbable suture 10 is found.

[0112] Once the colonoscope finds the absorbable suture 10, it further determines whether the shape and position of the polyp to be marked clamped by the clamp 11 connected to the absorbable suture 10 have changed. The colonoscope will use its high-resolution imaging system to carefully observe the morphological characteristics of the polyp, such as the outline, size, color, and the position information of the polyp in the intestine. If the shape and position of the polyp are found to have changed, the colonoscope will promptly feedback this information to the doctor. The doctor will re-evaluate the condition and adjust the treatment plan based on the changed shape and position of the polyp. For example, if the size of the polyp increases or the shape becomes irregular, further biopsy or more active treatment measures may be required; if the position of the polyp has shifted significantly, it may be necessary to redefine the entry point or method of treatment. Through this series of steps, the colonoscope can effectively track the absorbable suture 10, and then determine the changes in the shape and position of the polyp to be marked, which not only helps doctors to understand the development of polyps in a timely manner, but also provides an accurate basis for adjusting the treatment plan, improves the treatment effect, reduces the occurrence of complications, and promotes the patient's recovery.

[0113] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for marking polyps under colonoscopy, characterized in that: include: Firstly inspect the patient's intestine by a pre-set colonoscopy to determine a first location of the polyp to be marked in the intestine; After the polyp to be marked is found, a preset marking component is pushed to the first position of the intestine through the endoscope channel of the enteroscope, wherein the marking component includes an absorbable suture and a clamp, and the clamp is connected to the top of the absorbable suture; Clamping the clamping member on the surface of the polyp to be marked at the first position, and placing the absorbable suture at a second position in the intestine; When the colonoscope performs a second inspection of the patient's intestine, the clamp is tracked according to the absorbable suture at the second position to determine the polyp to be marked located at the first position.

2. The colonoscopic polyp marking method according to claim 1, characterized in that: The step of first examining the patient's intestines through a preset colonoscopy includes: Inserting the colonoscope into the intestine of the patient at a first speed of 1-1.5 cm per minute, and detecting the patient's vital signs, wherein the vital signs include heart rate, blood pressure and respiratory rate; If the patient's heart rate exceeds the normal range of ±20 times / minute, the systolic blood pressure exceeds the normal range of ±20 mmHg, the diastolic blood pressure exceeds the normal range of ±10 mmHg, and the respiratory rate exceeds the normal range of ±5 times / minute, stop inserting the colonoscope.

3. The colonoscopic polyp marking method according to claim 2, characterized in that: The step of determining a first position of the polyp to be marked in the intestine comprises: After the enteroscope enters the intestine, the enteroscope is advanced upward from the rectum at the first speed for inspection according to the anatomical structure of the intestine; When the colonoscope is located at the bend and fold of the intestine, the intestinal wall is observed from multiple angles by rotating the body of the colonoscope and / or adjusting the lens angle of the colonoscope; When the colonoscope observes a diseased tissue suspected to be the polyp to be marked in the intestine, the morphology, color and vascular distribution of the diseased tissue are observed through the magnification function of the colonoscope, and it is determined whether the diseased tissue is the polyp to be marked; If so, the first position of the polyp to be marked in the intestine is recorded, wherein the first position includes measuring the distance between the polyp to be marked and the anus, and the position information of the polyp to be marked on the circumference of the intestine, and the position information is based on the cross-section of the intestine as a reference and uses the clock orientation method to describe the position of the polyp to be marked.

4. The colonoscopic polyp marking method according to claim 1, characterized in that: The step of pushing the preset marking component to the first position of the intestine through the endoscope channel of the colonoscope after the polyp to be marked is found includes: According to the inner diameter and length of the endoscope channel and the pre-stored reference value of the intestinal internal resistance, the control system of the colonoscope calculates the initial setting values ​​of the pushing force and speed of the pushing device of the colonoscope; The marking component is pushed by the pushing device according to the initial setting value, and the imaging system of the colonoscope provides an endoscopic image, so that the marking component moves along a predetermined path; If the marking component deviates from the predetermined path, fine-tuning is performed by 5°-10° at a time according to the angle and direction of the deviation so as to return the marking component to the predetermined path; When the distance between the marking component and the polyp to be marked at the first position is less than a preset value, the detection system of the colonoscope reduces the pushing speed of the pushing device to 0.1-0.3 cm per second according to the distance between the marking component and the polyp to be marked.

5. The colonoscopic polyp marking method according to claim 4, characterized in that: The step of pushing the marking component according to the initial setting value by the pushing device includes: Based on the pushing process of the pushing device, determining whether the enteroscope encounters stenosis or obstruction of the intestine; If yes, the gas injection expansion device of the enteroscope is activated according to the preset pressure, flow rate and temperature of the preset gas injected; Inject the preset gas into the narrow or obstructed area of ​​the intestine at a rate of 2-3 ml per second, and determine whether the narrow or obstructed condition still exists in the intestine after the intestinal gas injection expansion; If yes, inserting a predetermined guide wire into the intestine through the endoscope channel, wherein the guide wire advances along the central axis of the intestine at a speed of 0.5-1 cm per second; After the guidewire passes through the stenosis or obstruction area, the marking assembly is pushed along the path of the guidewire to the first position of the intestine at the initial setting value.

6. The colonoscopic polyp marking method according to claim 1, characterized in that: The step of clamping the clamping member on the surface of the polyp to be marked located at the first position comprises: The operating arm of the colonoscope moves the clamping member to the surface of the polyp to be marked, so that the clamping surface of the clamping member is parallel to and in contact with the surface of the polyp to be marked; When the diameter of the polyp to be marked is less than 1 cm, the control system of the colonoscope adjusts the angle of the clamping member so that the clamping member is perpendicular to the surface of the polyp to be marked; When the diameter of the polyp to be marked is greater than 1 cm, the control system of the colonoscope adjusts the angle of the clamping member so that an angle of 30°-60° is formed between the clamping member and the surface of the polyp to be marked; When the clamping member clamps the surface of the polyp to be marked, judging by the imaging system of the colonoscope whether the color and / or texture of the polyp to be marked changes; If so, the colonoscope sends out an alarm signal and stops the clamping operation.

7. The colonoscopic polyp marking method according to claim 6, characterized in that: After the step of simultaneously placing the absorbable suture at a second location in the intestine, the method further comprises: Based on the imaging system, the absorbable suture at the second position is collected with images to be identified at preset intervals; By comparing the images to be identified collected before and after, analyzing the characteristic differences between the absorbable suture and the intestinal tissue surrounding the absorbable suture, determining whether the absorbable suture has a tendency to be displaced or entangled; If so, the operating arm of the colonoscope pulls the absorbable suture according to the preset pulling force so that the absorbable suture is adjusted to the second position.

8. The colonoscopic polyp marking method according to claim 2, characterized in that: The step of tracking the clamp according to the absorbable suture at the second position to determine the polyp to be marked at the first position comprises: Using the enteroscope to search for the absorbable suture from the starting point of the intestine upwards section by section at the first speed; When searching for the absorbable suture, the colonoscope determines whether the absorbable suture is found by adjusting the lighting intensity, lighting color and imaging mode; If yes, the colonoscope determines whether the shape and position of the polyp to be marked clamped by the clamp connected to the absorbable suture have changed; If so, the treatment plan is adjusted according to the changed morphology and position of the polyp to be marked.

9. The colonoscopic polyp marking method according to claim 1, characterized in that: The absorbable suture has a length of 5-10 cm.

10. The colonoscopic polyp marking method according to claim 1, characterized in that: The clamping piece is a titanium clamp.

Images