172 results about "Esophagus" patented technology

The invention discloses an enhanced interpretable multi-mode esophageal cancer target detection method and system, and the method comprises the steps: collecting a medical image of an energy spectrum CT detection esophageal tumor, and carrying out the marking processing of the obtained CT image; according to the marked CT image, carrying out multi-modal classification on the medical image and the clinical data information; constructing a fusion model based on multi-modal deep learning to perform fusion processing on the multi-modal features obtained by classification; according to fusion features obtained by fusion, generating an esophageal tumor detection report based on weak supervision contrast learning; constructing an intelligent detection cloud platform by taking the optimized AI diagnosis model as a kernel; the intelligent detection cloud platform is used for transmission, storage management, image data preprocessing, automatic detection and query statistics of energy spectrum CT images. According to the embodiment of the invention, the accuracy and robustness of image segmentation can be improved, efficient and accurate automatic detection of esophageal tumors is realized, and the method can be widely applied to the technical field of computers.

The invention discloses an esophageal adenocarcinoma plasma circulation microbial marker combination, a reagent, a kit, a risk prediction model and application thereof, and belongs to the cross technical field of liquid biopsy and microbiomics. The esophageal adenocarcinoma plasma circulating microbial marker combination disclosed by the invention comprises enterobacteriaceae, cilia, prevotella, ackermania, lactobacillus fermentum and streptococcus. When the esophageal adenocarcinoma plasma circulating microbial marker combination is used for verifying esophageal adenocarcinoma patients and healthy controls, the AUC is 0.952, the sensitivity is 100%, the specificity is 80.00%, the accuracy is 91.43%, the positive predictive value is 86.96%, and the negative predictive value is 100%; the esophageal adenocarcinoma plasma circulating microbial marker combination can effectively distinguish esophageal adenocarcinoma patients from healthy people, is suitable for early screening of esophageal adenocarcinoma, and has remarkable clinical screening application value.

The invention relates to the technical field related to ultrasonic detection, in particular to a method and a device for acquiring an angle of a transesophageal ultrasonic image in a preoperative CT image guidance operation. The method comprises the following steps: acquiring a heart and esophagus cutting model based on a CT image; the heart and esophagus cutting model comprises a heart model and an esophagus model; determining a long-axis section of the heart based on the heart model; determining an esophagus center line based on the esophagus model; selecting a point closest to the long-axis tangent plane in the central line of the esophagus as an ultrasonic irradiation position; the long-axis section of the heart is corrected based on the ultrasonic irradiation position, so that the long-axis section passes through the ultrasonic irradiation position, and the corrected long-axis section is obtained; and determining the angle of the ultrasonic probe based on the corrected long-axis tangent plane and the tangent plane of the esophageal center line at the ultrasonic irradiation position. By means of the arrangement, a doctor can obtain the intraoperative ultrasonic irradiation angle during preoperative planning, and the operation is more accurate and normative.

This document provides devices and methods for prosthetic flap valve system, comprising an elongation member having a first end and a second end, a first anchor member coupled to the first end of the elongation member and configured to couple the first end of the elongation member to the gastric wall of a subject, a second anchor member coupled to the second end of the elongation member and configured to couple the second end of the elongation member to a flap valve, wherein, the elongation member is configured to bias the flap valve to a closed position, and the closed position of the flap valve provides a separation between the esophagus and the stomach.

The utility model discloses a line traction-magnetic anchoring device for esophagus pH capsule monitoring, and belongs to the technical field of medical instruments. The utility model relates to a pH capsule, and aims to provide a pH capsule anchored by magnetic force so as to solve the problems that an existing pH capsule needs to depend on assistance of an endoscope and a delivery system in the embedding process, the embedding cost is high, and the falling time cannot be accurately controlled. Comprising a capsule shell and an in-vitro magnetic anchoring device, and a pH capsule is placed in the capsule shell; the in-vitro magnetic anchoring device is arranged at the chest position to apply magnetic attraction force to the capsule shell in the esophagus, and the capsule shell is fixed to the corresponding examination position in the esophagus through the magnetic attraction force. The capsule shell is further connected with a detachable traction line, one end of the traction line is movably connected with the capsule shell, the other end of the traction line is led out of the oral cavity through the esophagus, and the traction line is used for suspending the capsule shell.

The invention discloses an ultrasonic imaging system and method based on a heart surface, a medium and a product, the system comprises an ultrasonic detection assembly and an imaging terminal which are in communication connection, an ultrasonic transducer is packaged at the head end of an attached ultrasonic probe in the ultrasonic detection assembly, and an acoustic window on the ultrasonic transducer is planar; the ultrasonic transducer is used for being attached to the surface of the heart or the aorta, and the plane of the ultrasonic transducer is parallel to the plane of the acoustic window; and the imaging terminal is used for generating a sound velocity mask pattern according to the reference ultrasonic image, determining echo time delay data according to the sound velocity mask pattern, synthesizing and reconstructing the radio frequency signal data according to the echo time delay data to obtain an ultrasonic image, performing motion compensation on the image sequence, performing multi-modal fusion on the ultrasonic image subjected to motion compensation, and obtaining a final ultrasonic image. The problem of acoustic interference of anatomical structures such as the chest wall and the esophagus in a traditional echocardiography technology is solved, and real-time and high-quality image support is provided for cardiac surgery.

The invention provides a stomach tube space registration and dynamic positioning method based on historical features, and relates to the technical field of medical instruments, and the method comprises the following steps: data acquisition: recording a catheterization path curve when the catheterization of a patient succeeds, and determining the catheterization path curve as a physiological feature curve; data calibration: marking coordinates of key feature points such as an airway opening, key parts of an esophagus and a stomach entrance on the physiological feature curve; space registration: registering the real-time catheter advancing curve and the physiological characteristic curve in the same coordinate system, and aligning data; dynamic positioning: calculating the position deviation of the front end of the stomach tube, dynamically calibrating based on a deviation value, and controlling the stomach tube to move along a physiological characteristic curve, in the data acquisition step, the physiological characteristic curve is used as a historical reference for path matching in a subsequent tube indwelling process, and in the data calibration step, the tube indwelling control precision is improved by more than or equal to 15% by dividing characteristic sections; and by utilizing a historical physiological curve, the catheterization path deviation is less than or equal to 2mm, and the control precision is improved by 30%.

The multi-channel laryngeal mask comprises a tube body and a mask bag connected to the tube body, and a main ventilation channel and a temperature detection channel are arranged in the tube body at intervals; a ventilation opening and a temperature detection opening are formed in the mask bag. In the using process, the mask is placed in the upper respiratory tract of a patient, the mask bag is attached to the upper end of the epiglottis of the patient to achieve sealing, and the main ventilation channel on the tube body is connected with an air source to achieve ventilation operation on the patient. The esophagus of the patient can be connected with the atmosphere through the temperature detection channel, and adverse reactions such as gaseous distention in the ventilation process are effectively prevented. Meanwhile, the body temperature detection line can extend into the temperature detection channel, partially extends out through the ventilation opening and then is inserted into the esophagus of the patient, so that relevant operations such as body temperature detection are carried out. And the imbedded instrument does not need to be frequently inserted, pulled and replaced, so that the injury to a patient caused by repeatedly switching the imbedded instrument in an operation process can be effectively avoided. In addition, the operation complexity is reduced, and the operation convenience and the operation efficiency are improved.

The stomach tube comprises a main tube body, a plugging head and a side hole, the plugging head is plugged at the tail end of the main tube body, the plugging head is composed of a first plugging head body and a second plugging head body which are of an integrated structure, the first plugging head body is located outside the main tube body and abuts against the tail end of the main tube body, the second plugging head body is plugged into the main tube body, and the side hole is formed in the main tube body. The main pipe body is provided with a plurality of side holes, the side holes are close to the tail end of the main pipe body, and when the main pipe body is vertically arranged with the tail end facing downwards, the lowest position of the upper end face of the second plug body is not lower than the lowest positions of the side holes. According to the stomach tube, the lowest position of the upper end face of the second plug body is not lower than the lowest position of the side hole, so that an area where gastric juice and food residues remain is not prone to being formed in the stomach tube, the gastric juice and the food residues are not prone to being brought into the esophagus and the nasal cavity when the stomach tube is pulled out, the esophagus and the nasal cavity are not prone to being stimulated, and use is safer.

The invention discloses a capsule oral feeding device, relates to the field of oral feeding devices, solves the problem that the existing oral feeding tubes are mostly made of polyurethane materials, have shapes and structures similar to those of gastric tubes, but are shorter in length than gastric tubes, are made of harder materials, and are very uncomfortable for patients during use. The device comprises a first oral feeding injection tube, which is soft, has an injection structure at one end thereof, and has a quick-dissolving capsule that can be swallowed into the esophagus by the patient at the other end thereof; the patient can swallow the quick-dissolving capsule and the first oral feeding injection tube into the esophagus by himself through the remaining swallowing ability, and after entering the esophagus, the quick-dissolving capsule and the first oral feeding injection tube are unfolded to form a channel, and a fluid diet can be injected through the channel; when using the device, the patient can first eat orally to satisfy the appetite and exercise the chewing and swallowing functions; after fatigue, the capsule oral feeding tube is used to complete the calorie intake of the meal, thereby improving the comfort of the patient.

The invention relates to the technical field of drug delivery, in particular to silk-based oral hydrogel as well as a preparation method and application thereof. The invention discloses and provides a preparation method of a hydrogel material which is based on fibroin, can be subjected to rapid gelation reaction and can be swallowed, subjected to gastric retention and enteric-coated. The material can be used for entrapment and multi-drug joint co-loading of water-phase soluble drugs or insoluble drugs. The hydrogel has the characteristics of excellent mechanical properties and shear thinning, is easy to swallow, and can effectively penetrate through the esophagus to enter the gastrointestinal tract. The hydrogel can be retained in the stomach for more than 24 hours, and responds to pancreatin in the enteric cavity to be degraded and release the entrapped medicine. In conclusion, the fibroin-based hydrogel capable of being swallowed, retained in the stomach and enteric, which can be subjected to rapid gelation reaction, has relatively high application value in the fields of oral drug carriers, oral health-care products, wound gel dressings, antibacterial materials and the like.

The invention discloses an intelligent laryngeal mask for the anesthesiology department, relates to the technical field of the anesthesiology department, and aims to provide the intelligent laryngeal mask for the anesthesiology department, which can lead vomiting liquid out of the esophagus and prevent the vomiting liquid from flowing back into the airway when a patient vomits. The first annular air bag is arranged on the ventilation pipe and is aligned with the inflation pipe, a flow guide pipe is arranged below the ventilation pipe, one end of the flow guide pipe is aligned with the esophagus, and the other end of the flow guide pipe extends out of the oral cavity. Meanwhile, the flow guide pipe located below the breather pipe is aligned with the esophagus, when the patient vomits, vomiting liquid enters the flow guide pipe through the esophagus under the pressure effect and then is discharged out of the oral cavity through the flow guide pipe, and the problem that the vomiting liquid extrudes the breather pipe open and flows back into the air inlet channel is solved.

The present invention provides a system for Airway Management training for healthcare professionals comprising a manikin having a head, a trachea, an esophagus, a pair of lungs and a stomach. The manikin also has endotracheal implements and is operatively connected to a family of sensors at one end and to an electronic controller device at the other end. The controller device is connected to a cloud server and a graphic user interface is connected to the system. The system has an Artificial Intelligence module, for processing the data collected by the controller device and sent to the cloud server instantaneously. The Artificial Intelligence module is for deriving relevant and useful insights as well as for personalizing the feedback and generating an Augmented reality effect in the user's Graphic Interface. This module is optimally distributed over the cloud server and the controller device.

The present invention relates to a catheter construction and method of use suitable for use in navigating within a body lumen or vessel, such as a vein, artery, nasal cavity, esophagus, etc. to assist in the performance of various procedures. The device can include a flexible tubular member having a proximal end, a distal end, and channel extending substantially between the proximal end and the distal end, a stiffening sleeve positioned at the distal end of the tubular member to provide stiffness thereto so that a removable procedural tool can be attached to the tubular member, and an elongated non-elastic tether situated within the channel of the tubular member and secured at one end to the distal end of the member, such that when the tether is held in tension, the tether acts to minimize the tubular member from deviating from a neutral state.

The invention relates to the technical field of oral care, in particular to an unconscious patient oral foreign matter cleaning device which comprises a seat body, two fastening belts with one ends mounted on the front side and the rear side of the seat body respectively and a central airway tube mounted in a mounting shell at the head of the seat body, and an elastic air bag mounted at the head of the central airway tube. A cleaning module is mounted in the middle through a rotary operation pipe, and an adsorption part is arranged between the cleaning module and the rotary operation pipe; the cleaning control center is arranged at the tail of the central airway tube and connected with the cleaning module through a cleaning liquid tube and an air tube, and the problems that in the prior art, due to the fact that a patient does not have the autonomous swallowing and closing capacity, foreign matter easily enters the airway by mistake, choking is caused, and the safety risk is high are solved; the visual field in the oral cavity is poor, the operation space is narrow, and manual or conventional instruments are difficult to clean comprehensively; an airway protective isolation structure is lacked, and cleaning fluid easily enters the esophagus and the airway and cannot adapt to the special physiological status of the coma patient.

The invention discloses an esophagus information detection method and system, a processing method and device and a storage medium. The esophagus information detection method comprises the steps that first feature information shown by an accessory when a sampling device is located at the cardia part is obtained; obtaining esophageal sampling data detected by the sampling device between the cardia part and the esophageal starting part; obtaining second feature information shown by the accessory when the sampling device is located at the starting part of the esophagus; determining scale information according to the first feature information and the second feature information; determining esophageal state information relative to a world coordinate system according to the scale information and the esophageal sampling data. According to the esophageal information detection method provided by the invention, esophageal state information relative to a world coordinate system can be constructed as intermediate data and can be used for recovering an absolute size and providing accurate reference for subsequent diagnosis and treatment.

The invention discloses an esophagus medicine applying device for a patient in the digestive system department, and relates to the field of medical equipment, the esophagus medicine applying device comprises a medicine applying pipe, an air pipe is fixedly mounted at the bottom of the outer surface of the medicine applying pipe, and a protective air bag is fixedly mounted on one side of the medicine applying pipe and one side of the air pipe; a pressure sensor is installed on the edge portion of one side of the outer surface of the extending pipe, a dosing mechanism is arranged on the outer surface of the medicine applying pipe and used for adjusting different types of dosing modes, the dosing mechanism comprises a dosing connecting part, the dosing connecting part is fixedly installed on the position, close to the upper portion of the protective air bag, of the outer surface of the medicine applying pipe, and a fixing groove is formed in the middle of one side of the outer surface of the dosing connecting part; the closed administration area is formed by inflating the protective air bag, and by matching with real-time monitoring of the pressure sensor, medicine is effectively prevented from flowing back to the stomach and entering the airway by mistake, discomfort such as nausea and sour regurgitation of a patient is reduced, lung injury is avoided, and the administration safety is improved compared with the prior art.

Methods are disclosed for dissecting a mucosa and a submucosa from a muscularis propria from a region of an organ of a subject, wherein the organ is not the esophagus. In some embodiments, the organ is in the gastrointestinal tract. These methods include injecting submucosally into the organ of the subject a pharmaceutical composition comprising an extracellular matrix (ECM) hydrogel to form a cushion between the submucosa and the underlying muscularis propria at the region of the organ, wherein the ECM hydrogel has the following characteristics: a) a time to 50% gelation of less than 30 minutes at a temperature of about 37° C.; b) a flow viscosity suitable for infusion into the organ; and c) a stiffness of about 10 to about 400 Pascal (Pa).

The invention relates to the technical field of medical instruments, in particular to a portable multi-channel glottis cover. Comprising an external cylinder, the external cylinder is fixedly connected with an air guide pipe, the external cylinder is fixedly connected with a flow guide pipe, the flow guide pipe is fixedly connected with an inflator pump, and the inflator pump is provided with a flow blocking unit; the flow blocking unit comprises first protruding rings distributed at intervals, the first protruding rings distributed at intervals are communicated with the inflator pump, and the inflator pump is communicated with second protruding rings distributed at intervals. Through the shape design and staggered arrangement of the first convex rings and the second convex rings, a plurality of annular cavities with opposite volume changes are formed in cooperation with the esophagus of a patient, when the first convex rings and the second convex rings are extruded by reflux gastric juice, the directions of counter-acting force provided by the adjacent annular cavities after the adjacent annular cavities are pressed are different, and the counter-acting force is uniform. The counter-acting force in different directions can effectively disperse external force, the deformation quantity of the first convex ring and the second convex ring is reduced, and therefore the probability of sealing failure is reduced.

The present invention complies with the technical field of intestinal obstruction catheters, and in particular relates to an intestinal obstruction catheter with a visual camera. It comprises a catheter body, the catheter body is fixedly connected to a guide head, the guide head is provided with circumferentially spaced visual cameras, the catheter body is provided with a suction channel, a reserved channel 1 and a reserved channel 2, the catheter body is provided with spaced suction holes, the catheter body is provided with a liquid sac 1, the liquid sac 1 is connected to a catheter 1, the visual camera is connected to a data cable, the data cable is located in the reserved channel 2, and the tail end of the catheter body is provided with a liquid injection port 1, a data plug and a guide wire inlet. The present invention utilizes circumferentially equally spaced visual cameras to timely observe the internal environment of the intestinal cavity and the intestinal lesions, and at the same time, does not require an endoscope to be lowered into the intestinal cavity along with the catheter body, thereby reducing the discomfort of the patient's esophagus and throat after surgery.

Disclosed in the present invention are a superconducting magnet system for esophageal atresia traction anastomosis, and a method. The system comprises: a superconducting magnet device, a movable flat plate, a support, a ferromagnetic core and a permanent magnetic core, wherein the movable flat plate is movably arranged inside a central hole of the superconducting magnet device, the support is fixedly connected to the superconducting magnet device, and the ferromagnetic core and the permanent magnetic core are placed inside the central hole of the superconducting magnet device and are respectively located at a proximal esophageal end and a distal esophageal end of an esophageal atresia target; the superconducting magnet device is configured to generate a uniform magnetic field and a gradient magnetic field inside the central hole; and the ferromagnetic core and the permanent magnetic core are configured to provide opposite traction forces for the esophageal atresia target under the uniform magnetic field and the gradient magnetic field. According to the present application, by combining the uniform magnetic field, the gradient magnetic field, the ferromagnetic core and the permanent magnetic core, opposite traction forces that have adjustable magnitudes and that do not require directional adjustment are provided for the esophageal atresia target, thereby improving the traction force intensity, control flexibility and control precision.

The utility model discloses a kind of gastric cavity plugging catheters of gastrostomy in the medical instrument technical field, the device increases plugging balloon and sealing clamping piece, can be held by inside and outside, hold stomach wall and skin to position the device, while plugging balloon seals and isolates the puncture of stomach wall inside gastric cavity, effectively avoid gastric juice to flow out, avoid gastric juice to overflow along the puncture and cause skin burning;Positioning baffle is also increased, can be unfolded inside duodenum, positioning baffle can position nutrition tube, avoid nutrition tube to slide and separate, can also effectively block pylorus, effectively avoid enteric digestive juice to enter stomach, and do not hinder gastric juice to flow into intestine normally, and by pressure relief port and pressure relief pipe, stomach is conveniently decompressed, effectively avoid that pressure is too high and nutrition liquid is refluxed to esophagus.

The utility model discloses a nasal feeding or oral feeding nutrition tube device with an esophageal surface administration function, which comprises a nutrition tube and a bag tube, and a nutrient solution channel and an administration channel which penetrate through the nutrition tube are arranged in the nutrition tube; the nutrition tube comprises a medicine outlet section tube body, the medicine outlet section tube body is located at the end close to the stomach, a medicine outlet hole is formed in the medicine outlet section tube body, the medicine feeding channel is communicated with the medicine outlet hole, the medicine outlet section tube body is covered with a high polymer material buffer layer capable of seeping liquid medicine, and the bag tube cover covers the high polymer material buffer layer and is installed outside the medicine outlet section tube body in a sleeving mode. And fine holes are distributed on the capsule tube. According to the nasal feeding or oral feeding nutrient canal device with the esophageal surface dosing function, liquid medicine at the far end and the near end of the balloon tube can seep out evenly, and the treatment effect is improved.

The invention relates to the technical field of medical instruments, and particularly discloses a catheter structure, an external chest compression system and a pressure regulation and control method. The catheter structure comprises a catheter body, a positioning bag body, at least two esophageal bag bodies, a pressure adjusting assembly, a pressure monitoring assembly and a controller, the positioning bag body is connected to the far end of the catheter body, and the esophageal bag bodies are sequentially arranged in the direction of the side, close to the near end, of the positioning bag body; the pressure adjusting assembly is communicated with the positioning bag body and each esophageal bag body through each independent pipeline; the pressure monitoring assembly is used for collecting real-time pressure data in each esophageal capsule; the controller is used for controlling the pressure adjusting assembly to adjust the pressure in each esophageal capsule in combination with a compression signal fed back by external chest compression equipment and pressure data collected by the pressure monitoring assembly. The esophageal capsule bodies are arranged in a sectional mode, the pressure in the esophageal capsule bodies can be flexibly controlled according to the external chest compression rhythm, the extrusion effect of the back wall of the heart is improved, and then the external chest compression effect and efficiency are improved.

This invention relates to the field of medical device technology, and more particularly to a portable multi-channel glottis. It includes an external cylinder, to which an air guide tube is fixedly connected, and to which a flow guide tube is fixedly connected. An inflation cylinder is fixedly connected to the external cylinder, and the flow guide tube is also fixedly connected to an inflation cylinder. A flow-blocking unit is provided on the inflation cylinder. The flow-blocking unit includes spaced-apart first convex rings, which are connected to the inflation cylinder, and spaced-apart second convex rings are connected to the inflation cylinder. This invention, through the shape design and staggered arrangement of the first and second convex rings, forms several annular cavities with opposite volume changes in the patient's esophagus. When the first and second convex rings are compressed by refluxed gastric juice, the reaction forces provided by adjacent annular cavities after compression have different directions. These different directions of reaction forces can effectively disperse external forces, reduce the deformation of the first and second convex rings, and thus reduce the probability of seal failure.

The utility model relates to the technical field of feeding auxiliary equipment, and discloses auxiliary equipment for smoothing esophagus, which comprises a stop block, a liquid food connector is fixedly connected to the middle of the upper surface of the stop block, and a first air inlet and outlet connector is fixedly connected to one side of the outer wall of the liquid food connector. A second air inlet and outlet connector is fixedly connected to the side, away from the first air inlet and outlet connector, of the outer wall of the liquid food connector, and a first air conveying pipe is fixedly connected to one side in the check block. According to the auxiliary equipment for smoothing the esophagus, the check block is arranged, the position of the equipment is limited and fixed by biting the biting pad by a patient, the possibility that the esophagus of the patient is injured due to the fact that the equipment moves accidentally is reduced, the size of the silica gel block can be expanded by inflating the first air bag, and therefore the esophagus is smooth. Therefore, the discomfort of a patient when the patient bites the stop dog is reduced, and the comfort and safety of the equipment in use are improved.

The invention relates to the technical field of gastroenterology, in particular to an endoscope ligation device for the gastroenterology, which comprises an endoscope handle part and an insertion part connected to the head part of the endoscope handle part, a ligation head part is mounted at the head part of the insertion part, a negative pressure adsorption mechanism is arranged on the inner side of the ligation head part, and the negative pressure adsorption mechanism is connected with the endoscope handle part. A plurality of elastic rings are connected to the loop ligature head in a sleeving mode, a trigger push rod switch is arranged on the negative pressure adsorption mechanism and connected with a retracting and releasing mechanism located on the inner side of the loop ligature head, and the retracting and releasing mechanism is connected with the negative pressure adsorption mechanism. The problems that an elastic ring loading process is time-consuming and labor-consuming, complex lesions such as esophageal varicose veins need to be subjected to loop ligature for many times, the treatment opportunity of a patient is easily affected, the head may cause mechanical injury to the esophagus when the device enters the esophagus, and comfort and safety are low are solved.

A tool to aid in the feeding of whole animal bodies to a live reptile. The invention is designed for the use of deceased whole animal bodies, though a live animal body could be used in some instances. The tool consists of a barrel and a plunger. The barrel has an interior opening large enough to receive a whole animal body. The tip of the barrel has a beveled, angled tip which is used to assist in the opening of the reptile's mouth for feeding. The barrel may be lubricated to further assist insertion of the barrel into the reptile's mouth such as to position the animal body into the reptile esophagus. When fully depressed against the barrel, the end of the plunger will extend beyond the tip of the barrel to help push the animal body into the reptile's esophagus.

The utility model discloses a novel three-cavity two-bag tube which comprises a tube body, a stomach bag and an esophagus bag are arranged at the position, close to the front end, of the tube body in a spaced mode, and a first air blowing tube communicated with the stomach bag and a second air blowing tube communicated with the esophagus bag are arranged at the rear end of the tube body. A first liquid injection bag is arranged on the side, away from the front end of the tube body, of the stomach bag, a second liquid injection bag is arranged on the side, away from the front end of the tube body, of the esophagus bag, a plurality of liquid outlet micropores are evenly distributed in the bag wall of the first liquid injection bag and the bag wall of the second liquid injection bag, and a liquid injection tube communicated with the first liquid injection bag and the second liquid injection bag is arranged in the tube body. The utility model has the advantages that the paraffin oil can be easily injected into the outer side of the gastric pouch, the paraffin oil lubrication operation on the outer wall of the gastric pouch is completed, the problem of incapability of swallowing caused by tracheal intubation or deep sedation pain of a patient does not need to be considered, the gastric mucosa damage caused by continuous compression of the same position by the gastric pouch is avoided, and the mucosa is prevented from being torn during tube drawing.

The invention discloses an AI intelligent identification visual nasogastric tube, and relates to the technical field of medical instruments, the AI intelligent identification visual nasogastric tube comprises a nasogastric tube body and a guide wire body, one end of the nasogastric tube body is provided with a monitoring end, the other end of the nasogastric tube body is provided with a tube joint, and the nasogastric tube body is internally provided with a main channel, an auxiliary channel and a data channel; a first data line is arranged in the data channel, and one end of the first data line is in electric signal connection with a first camera module; the first camera module is a waterproof medical camera, the first data line is an optical fiber, the data channel and the first data line are sealed through silica gel, and the first data line is connected with an external monitoring terminal through a data interface. The high-definition waterproof medical camera arranged in the monitoring end is deeply combined with the AI algorithm, the probability that the nasogastric tube enters the trachea by mistake is reduced by collecting the characteristics of the inner wall of the alimentary canal in real time and automatically distinguishing the airway and the esophagus inlet, and the AI model can learn individualized anatomical differences, dynamically adjust the recognition threshold value and meet the requirements of different patients.