67 results about "Colonoscopy" patented technology

The invention belongs to the technical field of image detection, and discloses an enteroscopy auxiliary diagnosis method and system based on artificial intelligence, and the method comprises the steps: obtaining enteroscopy image data in an enteroscopy process, and synchronously extracting corresponding auxiliary collection information from the enteroscopy image data; caching the enteroscope image data and the auxiliary acquisition information frame by frame and keeping timestamps aligned; performing standardized correction and adaptive enhancement processing on the enteroscope image data after timestamp alignment; a self-adaptive gamma dynamic enhancement mechanism is introduced, and intestinal tract wrinkles are reserved to obtain an enhanced image; lesion positioning and category screening are conducted on the enhanced image through the target detection model, multi-scale feature aggregation and time sequence consistency constraint are conducted in combination with auxiliary collection information, and lesion candidate areas are generated; performing morphological, texture and boundary structure analysis on the lesion candidate region, and extracting lesion morphological features; and the efficiency and the reliability of enteroscopy diagnosis can be improved.

The invention belongs to the technical field of medical data processing, and discloses a rectal cancer neoadjuvant therapy curative effect prediction method and system based on multi-modal knowledge decomposition. The invention provides a multi-modal data fusion algorithm based on multi-modal knowledge decomposition, which decomposes multi-modal data into a plurality of independent modal knowledge, and does not lose important inter-modal complementary information while reducing redundant information. According to the method, the unsupervised clustering algorithm and the supervised CNN algorithm are used at the same time, and compared with a traditional image selection method only using unsupervised random selection or based on information entropy, the interference of noise data on image screening can be reduced, so that representative enteroscope images and CT images can be selected.

The invention discloses an intestinal polyp identification method based on images and multi-modal data. The method comprises the following steps: acquiring pathological images of a plurality of microscopes, objective magnification information corresponding to the pathological images, and text information corresponding to enteroscopes; performing data preprocessing on each frame of acquired pathological image and text information to obtain a training data set; a multi-scale multi-modal feature classification network is constructed, the training data set is used for training, and a trained multi-scale multi-modal feature fusion classification network is obtained; the method comprises the following steps: collecting a microscope pathological image of a patient, obtaining corresponding enteroscope text information, respectively carrying out data preprocessing, and inputting into a multi-scale multi-modal feature fusion classification network to obtain disease category prediction of a model. According to the method, pathological images and enteroscope text information are fully fused, accurate classification and prediction of disease types are finally achieved, the effect and efficiency of multi-modal diagnosis of intestinal diseases are improved, and therefore the accuracy of patient diagnosis is improved.

The present disclosure encompasses systems, methods, and compositions for diagnosing a subject for a high-grade advanced pre-malignant lesions or colorectal cancer (CRC) disease state by ascertaining the presence of certain one or more glycosylated or aglycosylated peptides in liquid biopsy samples from the subject. Specific embodiments encompass methods of measuring certain one or more glycosylated or aglycosylated peptides in liquid biopsy samples from subjects known to have or suspected of having a high-grade advanced pre-malignant lesions or CRC disease state or subjects undergoing routine health care maintenance for possible presence of a high-grade advanced pre-malignant lesions or CRC disease state. The disclosure provides systems, methods, and compositions to identify subjects at-risk for CRC or high-grade advanced pre-malignant lesions and increases subject colonoscopy compliance, in specific embodiments.

The utility model discloses an improved excretion protection bag suitable for an enteroscope, and belongs to the technical field of medical care appliances. An improved excretion protection bag suitable for an enteroscope comprises an ostomy bag body, an inlet and an outlet are formed in the two ends of the ostomy bag body respectively, an adhesive panel is fixedly connected to the outer surface, close to the inlet, of the ostomy bag body, a finger stall is fixedly connected to the interior of the outlet, and the enteroscope is arranged at the other end of the finger stall. The colonoscope is inserted into the ostomy bag body in a penetrating mode and extends out of the inlet, a negative pressure suction connector is arranged at the bottom of the ostomy bag body, a negative pressure suction tube is fixedly connected to the end of the negative pressure suction connector, a negative pressure bottle is arranged at the other end of the negative pressure suction tube, and a ventilation tube is arranged at the end of the negative pressure bottle. According to the utility model, the protection effect can be effectively and obviously reflected, so that medical personnel, the surrounding environment and the ground are not polluted, the skin of a patient is protected from being damaged, and the skin of the patient is kept dry and clean.

The utility model relates to an auxiliary device for enteroscopy, which comprises a cylinder, and a containing cavity matched with an enteroscopy to go deep into the intestinal tract is arranged in the cylinder. An expansion balloon is arranged at the front end of the barrel; a handheld end is arranged at the rear end of the barrel body, the handheld end is of a cuboid structure, and a through hole matched with the containing cavity is formed in the middle of the handheld end; correspondingly, one side of the through hole is further provided with an inflation device. The anus protecting device has the advantages that the structure is simple, the operation is convenient and fast, the anus part is effectively protected from repeated friction, and the pain and discomfort of a detected person are relieved; on the other hand, through the arrangement of the air bag, the shape and size of the head end of the barrel can be effectively controlled to be matched with different patients for use, and the practicability and comfort of the device are improved.

1. Name of the product in this design: Patient pants for colonoscopy. 2. Purpose of this design: To be worn by patients during colonoscopy. 3. The key point of the design of this product lies in its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

1. Name of the product in this design: Disposable colonoscopy pants. 2. Purpose of this design: To be worn during colonoscopy. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. The name of this design product: Colonoscope. 2. Purpose of this design product: This design product is used for colonoscopy. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention relates to the technical field of medical equipment, in particular to a nursing auxiliary device for enteroscopy, which comprises a protective barrel and a traction piece, and because a plurality of protective bags are arranged at intervals in the axial direction of the protective barrel, part of rectum of a detector is in an unexpanded state in the axial direction of the protective barrel, so that the discomfort of the detector is reduced; a traction piece is arranged on each protection bag, a plurality of first traction units and a plurality of second traction units are arranged in each traction piece, and according to the distribution state of the plurality of first traction units and the plurality of second traction units in the circumferential direction of the protection bags, the traction pieces are arranged in the protection bags; the strength of the first traction unit and the second traction unit for traction of the outer contour of the protection bag towards the axis of the protection barrel is improved, so that in the circumferential direction of the protection bag, the dilation degrees of the rectums of different parts of the detected person are different, and the discomfort of the detected person is further reduced.

The application discloses a method for predicting biological age based on enteroscopy pictures, and belongs to the field of digestive endoscopy image analysis. The method first screens enteroscopy pictures without abnormalities, and completes quality control and edge cutting; then constructs an image package with multiple pictures in a single report, extracts features and weighted aggregation by using a multi-instance learning model based on attention; and converts age prediction into a classification task and introduces a Gaussian soft label to realize high-precision biological age prediction. The application can mine aging-related features from enteroscopy images without obvious abnormalities, does not need additional equipment and invasive operation, has strong generalization, and can be used for risk stratification of enteroscopy-negative people and precise prevention and treatment of colorectal cancer.

1. The name of the product of this design: special pants for colonoscopy. 2. Purpose of the product of this design: This product is used for colonoscopy. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: rear view of Design 1. 5. This appearance design product is a thin product, and Design 1 left view, Design 1 right view, Design 1 top view, Design 1 bottom view, Design 2 left view, Design 2 right view, Design 2 top view, Design 2 bottom view, Design 3 left view, Design 3 right view, Design 3 top view, Design 3 bottom view are omitted. 6. Designate Design 1 as the base design.

The utility model discloses an anti-pollution enteroscope assist device, and relates to the technical field of medical equipment. Comprising a rotating plate and an auxiliary clamping structure, the auxiliary clamping structure is arranged on the rotating plate and comprises a lower half clamping frame, a rotating clamping frame, an extending half frame, a lantern ring and a rubber ring, one side of the outer wall of the lower half clamping frame is fixedly arranged on the rotating plate, one side of the outer wall of the rotating clamping frame is rotationally embedded in the rotating plate, one side of the outer wall of the extending half frame is fixedly arranged on the rotating plate, and the lantern ring is arranged in the extending half frame. The inner wall of the lantern ring is slidably arranged on the extending half frame in a sleeving mode, and one side of the outer wall of the rubber ring is fixedly arranged on the lantern ring. By means of the lower half clamping frame, the rotary clamping frame, the extending half frame, the lantern ring and the rubber ring, the auxiliary part of the enteroscope can be fixed to the bedside, the enteroscope penetrates through the auxiliary part and slowly stretches into the large intestine, the enteroscope is supported and is more stable in the stretching process, medical workers can conveniently free hands to conduct other detection operation, and the labor intensity of the medical workers is relieved. And convenience is provided for medical staff.

The present invention discloses a rectal protection device for colonoscopy, which specifically relates to the technical field of medical devices, including an air inlet pipe, one end of which is fixedly provided with a first flexible joint, and the other end of which is provided with a rectal protection mechanism; the rectal protection mechanism includes a rectal protection sleeve, the bottom of which is fixedly provided with an anus limiting edge, the cross-sectional shape of which is set to a trapezoid, the top of which is fixedly provided with a built-in fixed inflatable bag, the bottom of which is provided with an air inlet, and the rectal protection sleeve and the anus limiting edge are both provided with air delivery channels. The present invention arranges a rectal protection mechanism to allow the body of the colonoscope to enter the inside of the rectal protection sleeve, thereby delivering lubricant to the body of the colonoscope, which can effectively reduce the damage caused by repeated friction between the body of the colonoscope and the rectum and anus, reduce the urge to defecate and discomfort caused by repeated friction, and strengthen the protection of hemorrhoid patients during examination.

The invention discloses a method for assisting in improving Boston scoring precision of AI calculation by using enteroscope retreating speed, and belongs to the crossing field of enteroscopy and artificial intelligence technology. The method mainly comprises the following steps: in an enteroscope retreating stage, starting an AI calculation Boston scoring module and a retreating speed calculation module on the basis of a preset condition, synchronously obtaining scores and retreating speeds, and storing the scores and the retreating speeds in sequence; accumulating the mirror retreating speed to generate a coordinate sequence, and determining the length of the intestinal tract after sorting; dividing the intestinal tract into a plurality of sections and distributing corresponding coordinate sequences; and calculating the average cleanliness of each segment by adopting an integral algorithm in combination with the coordinate difference values in the segments and the corresponding scores, and summarizing to obtain a final score. According to the method, the problem of score weight imbalance caused by regional residence time difference in the prior art is solved, the Boston score accuracy and reliability are improved, the method is adaptive to the intestinal individual difference of patients, and reliable support is provided for intestinal lesion investigation and clinical diagnosis and treatment.

The invention discloses an enteroscopy rectum protection device, and relates to the technical field of medical examination, the enteroscopy rectum protection device comprises a fixing support, and further comprises a smearing assembly, a speed adjusting assembly and a pressurizing assembly, by arranging the smearing assembly, a lubricating agent can be evenly smeared on an enteroscopy body, when the lubricating agent is not evenly smeared, supplementary smearing can be conducted, and the lubricating quality is guaranteed; by arranging the speed adjusting assembly, the use amount of the lubricant can be automatically selected according to actual requirements when the lubricant is smeared, it is guaranteed that observation of a doctor on the illness state is not affected under the condition that the lubricant achieves the lubricating effect, and the use amount of the lubricant is saved; by arranging the two different driving motors, the two different driving motors can be used in a matched mode according to actual requirements, the spraying speed of the lubricating agent is controlled, the spraying or supplementary coating function of the lubricating agent is selected according to the requirements under the condition of independent use, and the use modes are diversified.

The utility model discloses gauze for enteroscopy, which comprises a dry gauze layer, a disinfecting and lubricating layer is arranged on the inner wall of the dry gauze layer, a waterproof layer for preventing water is arranged between the dry gauze layer and the disinfecting and lubricating layer, and an elastic ring is arranged between the dry gauze layer and the waterproof layer. The enteroscope has the advantages that the composite gauze composed of the dry gauze layer, the disinfecting and lubricating layer and the waterproof layer is arranged on the enteroscope in a sleeved mode, the inner wall of the disinfecting and lubricating layer makes contact with the enteroscope, the surface of the disinfecting and lubricating layer is disinfected and lubricated, the composite gauze is directly arranged on the enteroscope in a sleeved mode, and therefore lubricating agents do not need to be smeared back and forth, and the cost is reduced. And the enteroscope can be disinfected and lubricated through the disinfecting and lubricating layer when moving, so that the infection risk is reduced, and the lubricant is adsorbed in the disinfecting and lubricating layer before use, so that the risk that the lubricant is exposed in air and polluted is reduced.

The utility model provides an enteroscopy abdominal belt with an auxiliary supporting function, belongs to the field of medical instruments, and aims to solve the problem that contact parts are inconvenient to disassemble, clean and disinfect. The enteroscopy abdominal belt comprises a bed board and a lifting belt, the lifting belt is arranged on the bed board, and an insertion plate is arranged in the lifting belt. Through the arrangement of an insertion plate, a supporting air cushion can be inflated through an inflation pipe during use, the supporting air cushion can support and assist the abdomen of a patient after being bulged, and when the used supporting air cushion needs to be detached, cleaned and disinfected after examination is completed, pulling plates on the two sides can be pulled to drive a second limiting plate to move, so that the supporting air cushion is convenient to use. A second limiting plate can drive a stop block to be separated from an insertion plate and withdrawn into a second mounting plate while moving, when the insertion plate is not hindered, a supporting air cushion and the insertion plate can be pulled to be separated from the second mounting plate, the supporting air cushion is cleaned and disinfected, and the situation that cleaning and disinfection are not sufficient, and bacterial propagation is caused is avoided.

This invention proposes a colonoscopy image enhancement method based on an improved generative adversarial network, which relates to the field of image data processing. The invention proposes a colonoscopy image data processing process, including acquiring colonoscopy image data, constructing a generator, constructing a discriminator, constructing a colonoscopy image enhancement model, and obtaining colonoscopy-enhanced images. The generator is based on the encoder-decoder structure of ResUNet, combined with a dual-branch attention mechanism, to extract multi-scale features of colonoscopy images. By fusing features at different scales, features in key areas of the image are enhanced to generate enhanced colonoscopy images. The discriminator consists of multiple layers of convolution, combines a specific loss function to evaluate the enhancement effect of the generated image, and guides the generator to produce high-quality colonoscopy-enhanced images through a feedback mechanism.

The invention discloses a method for reducing stem cell injection loss and improving injection accuracy, which comprises the following steps: determining radioactive rectal injury diagnosis and treatment indications according to clinical medical history and previous examination, determining typical focuses in intestinal tracts through enteroscopy, preparing a stem cell preparation, and performing multi-point injection administration on typical lesion parts. Air in the endoscope injection tube is emptied before injection; a submucous membrane water cushion is formed by utilizing the endoscope injection tube; a vertical injection method is adopted for dosing and air is used for boosting; according to a preset formula, the injection dosage of each diseased region and each injection site is calculated, the injection speed is controlled, the injection dosage is finely adjusted according to the diseased condition, and the endoscope is retreated after injection is finished; the problems of dose loss and inaccurate injection existing in stem cell injection in radioactive rectal injury treatment are solved, and the effect and reliability of stem cell treatment are improved.

The invention relates to the technical field of brain-computer interfaces, in particular to a brain-controlled enteroscope operating system based on mixed reality. According to the system, an endoscope real-time image is obtained through a head-mounted display visual induction module, and a visual stimulation signal is generated on a display interface based on a preset visual induction stimulation normal form. An electroencephalogram signal generated by the target object for the visual stimulation signal is acquired through an electroencephalogram signal acquisition module, and operation intention information of the target object is determined based on the electroencephalogram signal through an electroencephalogram signal analysis module. The main control module is used for generating the corresponding enteroscope control instruction based on the operation intention information, and the enteroscope auxiliary manipulator module is used for executing the corresponding enteroscope control operation based on the enteroscope control instruction, so that the accuracy and the safety of the enteroscope operation are improved.

The utility model discloses a disposable medical enteroscope sleeve, and relates to the field of medical consumables. The problems of low working efficiency, inspection environment pollution and the like caused by the fact that body fluid secretions pollute an enteroscope body and the inspection environment during enteroscope diagnosis and treatment are solved. A disposable medical enteroscope sleeve comprises an enteroscope sleeve, the enteroscope sleeve comprises an enteroscope sleeve stretching opening bandage, an enteroscope sleeve stretching opening, an enteroscope sleeve soft cushion, an enteroscope sleeve liquid collecting bag, a liquid discharging opening and an enteroscope sleeve fixing band, one end of the enteroscope sleeve liquid collecting bag is fixedly connected with the enteroscope sleeve soft cushion, and the other end of the enteroscope sleeve liquid collecting bag is fixedly connected with the liquid discharging opening. One end of the colonoscope sleeve is fixedly connected with the colonoscope sleeve soft cushion, the other end of the colonoscope sleeve is fixedly connected with the colonoscope sleeve stretching opening bandage, the other end of the colonoscope sleeve stretching opening bandage is fixedly connected with the colonoscope sleeve stretching opening, and a containing space for the colonoscope to stretch in is formed in the colonoscope sleeve. Body fluid is collected through the enteroscope sleeve soft cushion and the enteroscope sleeve liquid collecting bag, convenience and rapidness are achieved, the workload of medical workers is relieved, and working efficiency is improved.

The invention discloses an ulcerative colitis image recognition method based on artificial intelligence, and the method comprises the steps: obtaining standard endoscope historical images of different intestinal examination positions, and enabling a plurality of standard endoscope historical images corresponding to each intestinal examination position to form a standard enteroscope group, calculating a curved surface smoothness standard value, an intestinal tract standard inner diameter and a blood vessel distribution standard state of an intestinal tract examination position corresponding to each standard enteroscope group; obtaining to-be-compared intestinal endoscopic examination images at different intestinal examination positions, sequentially grouping according to the intestinal examination positions to form a plurality of to-be-compared enteroscope groups, and calculating a to-be-detected curved surface smooth value, a to-be-detected intestinal inner diameter and a blood vessel distribution measurement state of the intestinal examination position corresponding to each to-be-compared enteroscope group; based on a comparison result of the smooth value of the to-be-measured curved surface, the inner diameter of the to-be-measured intestinal tract and the blood vessel distribution measurement state, performing constraint evaluation on the disease grade of the ulcerative colitis. According to the invention, the disease degree of ulcerative colitis can be subjected to constrained evaluation based on three dimensions.

The invention discloses an auxiliary abdomen pressing device for enteroscopy, and belongs to the field of medical instruments, the auxiliary abdomen pressing device comprises a bed body, a mattress, a cotton towel, an auxiliary mechanism, a positioning track, an abdomen pressing mechanism and a leg supporting mechanism, the bed body comprises a bed board, first reserved openings and electric rollers, the first reserved openings are symmetrically formed in the two sides of the bed board, and the electric rollers are rotationally arranged in the first reserved openings; the mattress is arranged above the bed board, the cotton towel is arranged above the mattress, the two ends of the cotton towel are wound on the electric rollers respectively, the auxiliary mechanisms are symmetrically arranged on the two sides of the bed board, the positioning rails are arranged at the tops of the auxiliary mechanisms in a sliding mode, the abdomen pressing mechanism is arranged in the positioning rails in a sliding mode, and the leg supporting mechanism is arranged above the mattress. The device can effectively help a medical worker to press the abdomen of a patient and meanwhile can assist the patient in turning over, the medical worker only needs to adjust the pressing mechanism, physical output of the medical worker can be greatly reduced, and the pressure of the medical worker is reduced.

The utility model discloses a portable rectal cancer enteroscopy auxiliary device, which belongs to the field of medical instruments and comprises a back supporting plate, two connecting rods are rotatably connected to one side of the back supporting plate, a reinforcing rod is fixedly connected between the two connecting rods, two ends of the reinforcing rod are rotatably connected with supporting rods, and the supporting rods are fixedly connected with the back supporting plate. According to the auxiliary device, in non-painless enteroscopy, a patient is prone to moving due to intestinal tract stimulation and discomfort, examination is disturbed, and pain is aggravated, when the auxiliary device is used, the patient places the thigh supporting plate below the thigh, the soft anti-skid face of the thigh supporting plate is attached to the leg, then the back leans against the back supporting plate, and the thigh supporting plate is fixed to the back supporting plate. The length of the first magic tape and the second magic tape is adjusted according to the stature, the body and the thighs are fixed by means of viscidity, safety is guaranteed, shaking is prevented, finally, a medical worker pushes a limiting block to be clamped into a limiting hole, the posture is locked, the patient is prevented from greatly moving due to discomfort, and it is ensured that examination is conducted smoothly.

The present invention discloses a method for detecting intestinal polyps based on deep supervision and step-by-step learning. The method uses PVT_V2 to extract multi-scale features from the images captured by colonoscopy; the extracted multi-scale features are input into a detail enhancement module to output the features after detail enhancement; the features after detail enhancement are input into a guidance fusion module to fuse the low-level features with the high-level features under the guidance of the high-level features; the features of the highest layer are input into a multi-branch decoder module to obtain the features after multi-scale information fusion decoding; the features after detail enhancement and the output result of the previous multi-scale decoder are input into a multi-scale decoder to gradually learn the output features of each layer of the multi-scale decoder; the output features of the multi-scale decoder pass through a one-layer convolutional layer to obtain the detection result. The present invention continues to highlight the multi-scale detail information in the multi-scale decoder, realizes the precise positioning and accurate detection of intestinal polyps, and has good generalization ability.

The invention discloses an enteroscopy auxiliary positioning centralizer based on a magnetic control technology, and relates to the field of enteroscopes. The device comprises a centralizing control body, a control steel rope, a supporting assembly and a steel rope moving assembly are arranged in the centralizing control body, the control steel rope is slidably connected into the centralizing control body and used for pulling the enteroscope to turn, one end of the control steel rope is fixedly connected with a magnetic sliding disc, and the supporting assembly is fixedly connected into the centralizing control body. The supporting assembly comprises a first electromagnetic coil, the steel rope moving assembly is fixedly connected into the supporting assembly, the magnetic sliding disc is slidably connected into the steel rope moving assembly, and a clamping magnetic long plate is slidably connected into the steel rope moving assembly. According to the device, the response time is short, the current is accurately adjusted, errors are small, a user does not need to adjust the angle through perception and proficiency, rotation in the direction is more flexible, loss and resistance during movement are small, and fixation is firmer.

The invention relates to the technical field of medical diagnosis, in particular to a telescopic enteroscope assembly which comprises a sleeve and two air bags, the sleeve is further provided with an auxiliary air bag, the auxiliary air bag comprises three air bag rings, and the three air bag rings are the middle air bag ring and the two side air bag rings; a first communicating air channel and a second communicating air channel are formed in the side wall of the cannula, one end of the first communicating air channel is communicated with the middle air bag ring, and the other end of the first communicating air channel is disconnected from the communicating air bag after the communicating air bag is squeezed by small intestine peristalsis; one of three ports of the three-way pipeline is communicated with the communicating air bag after the communicating air bag is squeezed by small intestine peristalsis, the other two ports of the three-way pipeline are communicated with the side air bag rings all the time, and after the air bag is squeezed by small intestine peristalsis, the two side air bag rings are higher than the middle air bag ring; the cross section of the auxiliary air bag is of a sucker structure with two high sides and a concave middle. Connection between the cannula and the intestinal tract is enhanced, cannula displacement is reduced, and the operation difficulty is lowered.

The application discloses a marker group for intestinal cancer screening and diagnosis and application thereof, and belongs to the field of molecular biological technology. The marker group comprises at least four polypeptides shown in sequences SEQ ID NO. 1-35. The marker group constructed by the application has more excellent sensitivity and specificity when used for auxiliary diagnosis and early screening of intestinal cancer. The selected discrimination peak set (marker group) is superior to the FIT home screening kit (sensitivity and specificity are 73.8% and 94.9% respectively) recommended for NHS (the British National Health Service) at present, the detection kit based on lncRNA (sensitivity and specificity are 82.9% and 72.9% respectively), and the CT colonoscopy technology (sensitivity and specificity are 84% and 85% respectively).

This invention discloses a forward traction-assisted colonoscopy advancement robot, comprising a colonoscopy body, which includes an endoscope tip, an endoscope bend, and an endoscope insertion part connected in sequence. It also includes: a continuous external sheath system sleeved on the outside of the endoscope bend; a traction drive system for traction of the continuous external sheath system forward; and a colonoscopy fixation system for fixing or releasing the endoscope insertion part. The continuous external sheath system includes a slider pair and a continuous external sheath. The slider pair includes an inner slider and an outer slider that slide against each other. The inner slider is fixedly connected to the endoscope tip; the outer slider is fixedly connected to the front end of the continuous external sheath; and the inner and outer sliders slide relative to each other under the drive of the traction drive system. This invention achieves a forward-driven endoscope advancement method, solving the problem of endoscope knotting in existing colonoscopy advancement methods and reducing pain for the patient during examination.