314 results about "Gastroscopes" patented technology

The invention relates to the technical field of artificial intelligence, and provides a gastric cancer risk quantitative scoring method, system and equipment based on artificial intelligence, and the method comprises the steps: recognizing the image type of each image frame in alimentary canal endoscope image data; for the electronic dyeing image frame, identifying a part contour region and an intestinal contour region of the feature part in the image frame, determining an intestinal epithelial metaplasia grading category of the feature part according to an area proportion of the intestinal contour region in the part contour region, and performing electronic dyeing intestinal scoring on the image data; for the white light image frame, gastroscope part types included in the image frame and focus area types of all gastroscope parts are recognized; performing atrophy scoring on the image data according to the position distribution of the focus area of the atrophy type; performing table state scoring on the image data according to whether the plica enlargement, nodular gastritis and diffuse redness focus areas exist or not; and realizing gastric cancer risk quantitative scoring according to the electronic staining intestinal scoring, the atrophy scoring and the epistatic state scoring.

The utility model provides a nasogastroscope-guided gastrointestinal catheterization system based on a guide wire. The nasogastroscope-guided gastrointestinal catheterization system comprises a nasogastroscope (1), an imbedding tube (2) and the guide wire (3), wherein the guide wire (3) is arranged in an instrument cavity of the nasogastroscope (1); the implantation tube (2) is arranged along the guide wire (3) to a target jejunum nutrition tube putting position; the diameter of the guide wire (3) is 0.4 mm to 1.8 mm; the length of the guide wire is 1-7 m, and the section, 2-8 cm long, of the front end of the guide wire (3) is a flexible section (3.9). The utility model has the advantages of simple structure, simplification of catheterization operation, reduction of the pain of a patient, reduction of medical risks, guarantee of the success rate of catheterization, and excellent technical effect; the method has huge economic value and social value.

The invention discloses a gastroscope in-vivo detection time measuring method, and relates to the technical field of gastroscope detection, and the gastroscope in-vivo detection time measuring method comprises the following steps: obtaining a data set of in-vivo and in-vitro environment dichotomy; the method comprises the following steps of: constructing a binary classification network based on a Vision Transform; training a dichotomy network based on Vision Transformer by adopting a data set of dichotomy of in-vivo and in-vitro environments; for a complete gastroscope video frame sequence of the in-vivo retention time of the gastroscope to be detected, extracting a frame at a certain interval as a representative frame, sending all the representative frames into the trained Vision Transform-based binary classification network for classification, searching the last group of in-vivo frame serial numbers Ida from the outside to the inside, and determining the in-vivo retention time of the gastroscope to be detected. And the last group of in-vivo frame serial numbers Idb from in vivo to in vitro; and calculating the retention time in the gastroscope body. The automatic processing level is high, extra manual processing is not needed in the whole process, the workload can be greatly reduced, the time efficiency can be improved, and the problems of missed watching and wrong watching caused by careful manual retrospective observation in a traditional method can be solved.

Provided are a split-type mask, a respiratory monitoring system, and a method of using the same, which are suitable for endoscopic examinations. The split-type mask includes a nasal mask body, an oral mask body, and a connector, wherein the nasal mask body and the oral mask body are connected by the connector. The nasal mask body is formed with an oxygen tube interface for connecting an external oxygen supply device to supply oxygen to the nasal mask body; the oral mask body is formed with an endoscope inspection port for passing an endoscopic examination device such as a gastroscope. The nasal mask body also includes a nasal pressure sensor and a nasal aspirator interface, respectively used to monitor the pressure within the nasal mask body and to aspirate aerosols within the nasal mask body, and / or the oral mask body also includes an oral pressure sensor and an oral aspirator interface, respectively used to monitor the pressure within the oral mask body and to aspirate aerosols within the oral mask body. The nasal mask body and the oral mask body are respectively adapted to fit the wearer's face without being connected to each other.

The invention provides a pancreatic wrapped necrosis endoscope debridement precise navigation method and system, and relates to the technical field of endoscope navigation. Comprising the following steps: acquiring a plurality of historical abdominal CT images before endoscopic drainage debridement, and identifying contour areas of a pancreatic head, a pancreatic neck, a gland, a pancreatic tail, a duodenum, a gastric antrum and a gastric body in the abdominal CT images; an endoscope image and an ultrasonic image in the endoscope drainage debridement process are obtained, a gastroscope part is recognized, and a pancreas area is recognized; constructing a feature vector, inputting the feature vector into a pre-trained CNN network model, and obtaining an abdominal CT image with the highest matching degree with a pancreas region recognition result in the current ultrasonic image from a plurality of historical abdominal CT images; and carrying out abdominal CT multi-plane reconstruction and display, so as to realize positioning and navigation of pancreatic wrapped necrosis endoscope debridement. According to the invention, through feature fusion processing of the endoscopic image, the ultrasonic image and the CT image, accuracy and safety required by an operation are ensured.

The invention provides a gastroscope image recognition and auxiliary diagnosis system and method based on deep learning and large language model fusion, and the system comprises a data collection and processing module which is used for obtaining and preprocessing various types of gastroscope images; the gastroscope picture recognition and classification module is used for inputting the preprocessed gastroscope pictures into a GastroHAF model for training and outputting recognition and classification results of the gastroscope pictures, and the GastroHAF model comprises a weak supervision anatomical mark positioning sub-module, a space co-occurrence context reasoning sub-module and an anatomical atlas guided hierarchical classification sub-module; and the auxiliary diagnosis module is used for outputting stomach diagnosis results and examination suggestions based on the fine-tuned Chinese medical big language model. The GastroHAF model provided by the invention can quickly, effectively and accurately judge the position of the gastroscope in combination with prior anatomical knowledge, and can effectively assist doctors in stomach examination in combination with a large language model.

The invention discloses a multi-task autoimmune gastritis gastroscope image classification method and device and a medium, and the method comprises the steps: obtaining a plurality of gastroscope images of a patient, and carrying out the registration of all gastroscope images, and obtaining a similarity matrix; according to the similarity matrix, the gastroscope images are clustered, so that the gastroscope images are grouped, and a plurality of gastroscope image groups are obtained; respectively inputting each gastroscope image group into a first classification network and a second classification network to obtain a first classification label and a second classification label, and obtaining a result pair (the first classification label and the second classification label) corresponding to the current gastroscope image group; wherein the first classification label comprises gastric anatomical parts including the stomach fundus, the stomach body and the gastric antrum, and the second classification label comprises lesion conditions including normal and atrophy. According to the method, the requirements for a large receptive field, local fine-grained information and inductive bias in anatomical region classification and lesion condition classification are considered, and gastroscope images are accurately classified.

The invention relates to the field of medical image processing, in particular to a gastric cancer precancerous lesion progress risk assessment system based on time sequence image analysis, which comprises a time sequence gastroscope image registration module, a lesion curved surface dynamic representation module, a multi-dimensional feature manifold construction module, a risk dynamic prediction module and a virtual pigment endoscope enhancement module, according to the method, a differential geometry theory is introduced, the gastric mucosa surface is modeled as a Riemannian curved surface, and Gaussian curvature, average curvature and other characteristics are extracted; constructing a feature manifold space by adopting a manifold learning method, and analyzing a lesion state evolution trajectory through geodesic distance; and predicting the time for the lesion to reach a high-risk state based on the probability density distribution and the evolution vector field on the manifold. According to the method, accurate characterization of gastric cancer precancerous lesion morphological characteristics, quantitative analysis of dynamic evolution and accurate prediction of risk progress are realized, a scientific basis is provided for clinical follow-up visit decisions, and the method has the remarkable advantages of improving the early intervention rate, optimizing medical resource allocation and the like.

The device comprises a light source generator, a light source adjusting mechanism, a light source conveying pipe and a detection head, the light source adjusting mechanism comprises a mounting cylinder, a shaping sector ring light absorption part and a folding sector ring light absorption part, and the mounting cylinder is provided with a light-transmitting round hole penetrating front and back; an annular cavity is formed in the cylinder wall of the mounting cylinder with the center point of the light-transmitting round hole as the center of a circular ring, the multiple sets of shaping fan ring light absorption pieces are distributed in the annular cavity in the circumferential direction, and a set of folding fan ring light absorption pieces are arranged between every two adjacent sets of shaping fan ring light absorption pieces. The side wall of the folding sector ring light absorption piece is attached to the side wall of the shaping sector ring light absorption piece and is connected with the shaping sector ring light absorption piece in a front-back sliding mode along the attaching face, and the shaping sector ring light absorption piece is arranged in the annular cavity in a front-back sliding mode in the direction of the left-right symmetry line of the shaping sector ring light absorption piece. And the transverse unfolding area of the folding fan ring light absorption parts is adjusted along with the adjustment of the distance between the two adjacent groups of shaping fan ring light absorption parts.

The utility model relates to the technical field of medical devices, and discloses an adjustable medical mouthpiece. It specifically includes: a mouthpiece body, which is tubular and has a first cavity formed inside along the length direction for cooperating with a gastroscope; a baffle plate arranged at one end of the mouthpiece body, an upper limit bar and a lower limit bar are respectively arranged at the upper edge and the lower edge of the baffle plate, a first groove is formed between the upper limit bar and the baffle plate, a second groove is formed between the lower limit bar and the baffle plate, and a first opening connected to the first cavity is also arranged on the baffle plate; a sliding plate of a frame structure; a tongue depressor arranged at the lower part of the other end of the mouthpiece body; the size of the dedicated hole for the air cannula of the mouthpiece in the utility model is adjustable, which improves the flexibility of the mouthpiece to match the air cannulas of different sizes, thereby effectively reducing the problem of the air cannula airbag being squeezed and broken due to the mismatch between the air cannula size and the mouthpiece size.

A scope cabinet that defines a cavity configured to receive a medical device, such as a gastroscope or endoscope, therein. The scope cabinet includes a detachable, cradle panel disposed on a panel within the cavity. The cradle panel forms a plurality of elongated slats. The scope cabinet further includes an adjustable arm that is configured to be releasably fastened at a point along one of the elongated slats. The adjustable arm includes a plurality of fingers and is configured to support a medical device. The scope cabinet also includes a removable shelf disposed within the cavity having an air-circulating unit disposed on top of the shelf. The scope cabinet has a rear panel that defines removable subsections. The cradle panel is attached to one of the subsections nearest a top panel of the scope cabinet but below the removable shelf.

The invention discloses an early gastric cancer intelligent screening and risk layering method and system based on multi-modal data fusion and deep learning. The method comprises the following steps: acquiring a gastroscope image, a pathological image, a medical image and clinical data of a patient, performing standardization processing and forming unified feature representation; training the multi-branch neural network model group, and generating a virtual queue tag based on each mode; fusing a multi-modal queue division result to generate a patient comprehensive queue label; adaptively selecting a decision path according to the label, and executing feature fusion and analysis of corresponding depth; generating a structured report containing gastric cancer risk levels and individualized monitoring suggestions; and deploying the system and dynamically tracking the change of a patient queue to realize continuous monitoring of disease progression. Cross-modal semantic alignment, uncertainty evaluation and a Markov prediction model are introduced into the system, the screening accuracy, credibility and dynamic risk evaluation capability are improved, and the system is suitable for early screening and personalized management of gastric cancer.

The invention provides a gastroscope diagnosis and treatment report generation method and system based on a fine-tuning multi-modal large model, and belongs to the technical field of medical image processing and natural processing, and the gastroscope diagnosis and treatment report generation method comprises the following steps: obtaining image text pair data of gastrointestinal tracts of a first-stage data set as a first-stage fine-tuning data set; performing first-stage fine tuning on a multi-modal large model by adopting the first-stage fine tuning data set to obtain a first-stage fine tuning model; acquiring image text pair data of the gastrointestinal tract of the second-stage data set, and performing templating processing to obtain a second-stage fine adjustment data set; performing second-stage fine tuning on the first-stage fine tuning model by adopting the second-stage fine tuning data set to obtain a second-stage fine tuning model; and inputting a gastroscope image to be diagnosed and treated into the second-stage fine tuning model, giving diagnosis and treatment problems to the second-stage fine tuning model, and generating a gastroscope diagnosis and treatment report. The effectiveness and accuracy of the gastroscope diagnosis and treatment report generated by the model are effectively improved.

The invention relates to the technical field of image processing, in particular to a gland structure irregularity quantitative analysis method and system based on a gastroscope image, and the method comprises the steps: carrying out the color correction and image contrast enhancement of an obtained original gastroscope image, and constructing a corresponding image pyramid; inputting the images in the image pyramid into an improved deep learning model for learning by adopting a multi-channel fusion input mode, and obtaining a gland binary mask after morphological processing; based on three dimensions of morphology, structural arrangement and complexity, quantitative features of a single gland structure are extracted from the gland binary mask; the extracted multi-dimensional quantitative features are trained through a gradient lifting decision tree model, an irregularity index is output, feature importance analysis is carried out, and the gland structure in the gastroscope image can be accurately recognized and quantized.

The invention discloses a universal soft endoscope system which comprises a reusable handle, and a threaded connector is arranged at the front end of the handle and used for being connected with a disposable soft endoscope consumable assembly. The threaded connector extends outwards to be provided with a flexible camera sleeve, and the end of the flexible camera sleeve is connected with a reusable camera assembly through a snake bone assembly. At least one group of traction assembly is arranged in the handle and is used for driving the camera assembly to steer; the camera assembly is electrically connected to the control device, and the control device is used for processing image signals collected by the camera assembly and / or controlling the traction assembly to achieve steering of the camera assembly. The disposable flexible lens consumable assembly is one of a disposable gastroscope consumable assembly, a cystoscope consumable assembly or a bronchoscope consumable assembly and a ureteroscope consumable assembly. The problems that an existing soft endoscope is high in cost, use convenience and safety are insufficient, and performance is difficult to guarantee are solved, cost is reduced, and meanwhile performance and use safety are improved.

The invention relates to an intelligent target detection method and system for a gastroscope image, and the method comprises the steps: carrying out the multispectral decomposition of an obtained gastroscope image, and generating a standardized image in combination with a dynamic domain adaptation strategy; based on the standardized image, adopting a multi-scale geometric perception feature extraction network to extract fusion features; carrying out anatomical position sensing processing on the fusion features to generate position sensing features with anatomical region identification capability; on the basis of the position sensing features, morphologically-guided multi-task target detection and classification are executed, and a multi-task detection result is obtained; the multiple tasks comprise focus detection, focus boundary segmentation and focus type classification; aiming at a multi-task detection result of continuous image frames in the gastroscopy process, applying a time sequence consistency constraint, and generating a space-time optimization result; and constructing an uncertainty perception mechanism based on a space-time optimization result, and outputting a calibrated target detection result. The precision of gastroscope image detection can be improved.

The utility model provides a multifunctional mouth bite, which comprises a mouth bite body provided with an operation port along a long axis, and is characterized in that the mouth bite body is provided with an oxygen inhalation cavity or / and an exhaled air collection cavity at the side of the operation port along the long axis in a penetrating manner, and the tail part of the exhaled air collection cavity is provided with a carbon dioxide monitoring interface. The device is used for ordinary and painless gastroscope operations, oxygen inhalation and end-tidal carbon dioxide monitoring; the fixing device is used for TEE (transesophageal cardiac ultrasonography) examination under general anesthesia, a tracheal catheter and a TEE probe can be conveniently fixed, and the fixing device is simple in structure, low in cost, safe and reliable.

The application discloses a gastroscope in-vivo residence time detection method based on deep learning, relates to the technical field of gastroscope detection, and comprises the following steps: acquiring an in-vivo and in-vitro environment two-classification data set; constructing a two-classification network based on a Vision Transformer; training the two-classification network based on the Vision Transformer by using the in-vivo and in-vitro environment two-classification data set; for a complete gastroscope video frame sequence to be detected for gastroscope in-vivo residence time, extracting a frame as a representative frame every certain number of intervals, feeding all the representative frames into the trained two-classification network based on the Vision Transformer for classification, searching for the last group of in-vivo frame sequence numbers Id_a from in-vitro to in-vivo and the last group of in-vivo frame sequence numbers Id_b from in-vivo to in-vitro, and calculating the gastroscope in-vivo residence time. The application has high automation processing level, does not need additional manual processing in the whole process, can greatly reduce workload and improve time efficiency, and can avoid missing and misreading caused by careless artificial retrospective observation in the traditional method.

The utility model belongs to the technical field of medical instruments and provides a disposable bite block which comprises a first bite block body, an adjusting mechanism used for adjusting the expansion angle of the bite block body is connected to the upper portion of the first bite block body, and a tongue pressing mechanism used for improving the intubation effect is arranged on the inner side of the first bite block body. The working performance of the tooth cushion is greatly improved through the arranged adjusting mechanism, the device structure is perfected, the expansion distance between the first tooth cushion and the second tooth cushion can be effectively adjusted through working cooperation of the telescopic column arranged in the adjusting mechanism and the screw adjuster, and therefore the device is not only suitable for trachea insertion, but also suitable for gastroscope intubation; the application range of the bite block is greatly widened, the working performance of the bite block is further improved through the arranged tongue pressing mechanism, the intubation working efficiency is improved to a certain degree, when the bite block is meshed in the oral cavity of a patient, a tongue pressing plate arranged in the tongue pressing mechanism conducts tongue pressing work through a movable shaft, and therefore the sight blocking situation is reduced, and the intubation effect is improved. And a worker can conveniently carry out intubation work.

The present application discloses an image stabilization correction method for capsule gastroscopy image acquisition, which relates to the technical field of medical diagnosis, and includes the following steps: image acquisition: taking the original image of the stomach wall through a capsule endoscope; image preprocessing: performing data enhancement processing on the original image, and then performing plane projection processing to obtain a two-dimensional projection plane image; generating a coordinate sequence: extracting a feature point sequence of the two-dimensional projection plane image, and generating a matching feature point pair coordinate sequence; correcting the lens posture: by calculating the lens posture, generating an image data sequence after posture correction, and correcting the lens posture; generating a stable image sequence: by calculating the path of the device, forming a lens space posture control sequence, thereby eliminating images that deviate from the predetermined path, and forming stable and reliable image data. The present application can make the acquired image more stable and reduce the impact of rotation and shaking on the image.

The invention provides a gastroscope cleaning device for the digestive system department, and relates to the technical field of gastroscope cleaning. A protective cover is arranged at the top position of the equipment frame, a box door is rotationally connected to the front end position of the protective cover, the middle position of the upper portion in the protective cover is fixedly connected with the middle position of the bottom of an adjusting frame, the adjusting frame is located in the protective cover, and an annular bevel gear is arranged at the bottom position of the adjusting frame. 2% glutaraldehyde disinfectant is used for disinfection, the design of surrounding type and self-rotation type nozzles of the cleaning machine is combined, thorough disinfection of the surface of the gastroscope is ensured, the risk of cross infection is reduced, surrounding type rotation of the wiping brush ensures complete coverage and uniform cleaning of the surface of the gastroscope, no dead corner residue exists, and the working efficiency is greatly improved. The problems that in the existing gastroscope cleaning process, soaking type cleaning is mostly adopted, stubborn residues existing in gastroscopes are difficult to remove, a large amount of time needs to be consumed in the cleaning process, and the cleaning efficiency is low are solved.

The invention discloses a tightness-adjustable self-unloading gastroscope mouthpiece, which comprises an arc-shaped plate, a hole is formed in the middle of the arc-shaped plate and is fixedly connected with the biting device; rotating shafts are symmetrically arranged on the two sides of the lower portion of the front end of the biting device and rotationally connected with tongue pressing rods; the tongue pressing rod is fixedly connected with the rear end of the tongue pressing plate, and torsion springs are symmetrically arranged on the two sides. One end of the torsion spring is fixedly connected with the tongue depressor, and the other end is fixedly connected with the rotating shaft; the tongue depressor is connected with the bite device body through the torsion spring and can press the tongue downwards in a self-adaptive mode, and the problem that a traditional bite device cannot manage the tongue and consequently the tongue falls backwards is effectively solved.

The present invention belongs to the technical field of endoscopic surgical instruments, and specifically relates to a disposable endoscopic wound suturing device, comprising a closure instrument housing and a tissue retractor. A gastroscope is embedded and fixedly installed inside the closure instrument housing, and an edge of the closure instrument housing is integrally provided with an instrument channel 1 and an instrument channel 2. The shaft portion of the tissue retractor movably passes through the instrument channel 2, and the tissue retractor is used in conjunction with the closure instrument housing and is used to pull the inner wall of the tissue close to the lens of the gastroscope. The tissue retractor is mainly composed of an inner needle rod, an inner tube rod, and an outer tube rod. The inner wall of one end of the handle is provided with a spiral guide groove. The present invention can be pulled by clamping the inner wall of the tissue, which can reduce the situation where the inner wall of the tissue is accidentally detached during pulling. The structure is simple to operate and has a small damage range. It can also ensure that the spiral chuck penetrates the inner wall of the tissue in a rotating manner, making it easier for the spiral chuck to pierce the tissue and enter.

The embodiment of the application is suitable for the field of natural cavity operation and computer-aided medical technology, and provides a scope-entering control system, a control method and computer equipment. The scope-entering control system comprises a scope-entering motor, a driving module, a wire transmission module, a boom rotating motor and a lifting column. The driving module is installed on a positive and negative toothed lead screw with one end fixed with the scope-entering motor. The driving module clamps the gastroscope through a locking clamp mechanism. The tail of the gastroscope is connected with the wire transmission module with one end connected to the output end of the boom rotating motor. The boom rotating motor is fixed on the lifting column. The scope-entering control system can drive the gastroscope to move in the natural cavity by driving the above-mentioned related motors and modules, so as to realize the autonomous and continuous scope entering of the gastroscope.

The invention belongs to the technical field of medical instruments, and particularly discloses a gastroscopy auxiliary device for the digestive system department. The insertion tube clamping mechanism is arranged on the supporting plate and is far away from the pillow cushion; the forehead fixing mechanism and the posterior cranium fixing mechanism are arranged on the supporting plate and are positioned on the front side and the rear side of the pillow cushion; the clamping forceps are arranged on the lower side of the supporting plate and is far away from the pillow cushion; the connecting rod is arranged at the front end of the supporting plate; the insertion pipe clamping mechanism comprises edge grooves symmetrically formed in the two edges of the supporting plate, positioning driving shafts rotationally arranged in the two edge grooves correspondingly, and two L-shaped swing arms with the lower ends rotationally connected to the two positioning driving shafts correspondingly. According to the invention, the pedal control system is innovatively adopted, the axial advance and retreat control of the insertion tube part is transferred from the hand part to the foot part, and a specially designed clamping auxiliary propulsion mechanism is adopted, so that a doctor can conveniently and stably install the insertion tube part into the auxiliary mechanism by only one hand, and the whole process from preoperative installation to intraoperative operation by one person is realized.

The biopsy cap of the gastroscope biopsy opening comprises a cap body, a cap cover is arranged at the upper end of the cap body, the cap cover comprises three layers of circular pads which are tightly overlapped, each circular pad is composed of a plurality of fan-shaped air cushions which are tightly attached, the arc ends of the fan-shaped air cushions are fixedly connected with the cap body, and attaching lines of the three layers of fan-shaped air cushions are evenly distributed on the horizontal plane. The fan-shaped air cushion is a silica gel air cushion and is internally provided with an air cavity. The round cushion is composed of six fan-shaped air cushions which are tightly attached, and the attaching lines of the three layers of fan-shaped air cushions are evenly distributed on the horizontal plane at the included angle of 20 degrees. According to the biopsy cap of the gastroscope biopsy opening, the cap cover comprises three layers of circular pads which are tightly overlapped, and each circular pad is composed of a plurality of fan-shaped air cushions which are tightly attached, so that the biopsy forceps are prevented from leaving a gap in the biopsy opening, the sealing effect is good in the biopsy process, digestive gas and liquid are effectively prevented from being sprayed out, and the biopsy cap is safe, sanitary and convenient to use.

An oropharyngeal ventilation mouthpiece belongs to the technical field of medical devices and comprises a mouthpiece and an oropharyngeal ventilation tube. The mouthpiece comprises a mouth pad, a tooth pad, a breathing passage tube and a gastroscope passage tube. The tooth pad is directly formed on the inner side of the mouth pad. The breathing passage tube and the gastroscope passage tube are in close contact and parallel to each other, directly pass through the center of the mouth pad and the tooth pad and extend outward from the inner side of the tooth pad. The oropharyngeal ventilation tube comprises a mouth edge, an oral cavity tube and a pharyngeal tube which are directly connected. The outer diameter of the oral cavity tube is equal to or slightly smaller than the inner diameter of the breathing passage tube. The length of the oral cavity tube is equal to or greater than the length of the breathing passage tube. The oropharyngeal ventilation tube is detachably inserted into the breathing passage tube. The beneficial effect is that the space required for inserting the gastroscope tube and the oropharyngeal ventilation tube into the oral cavity of a patient can be greatly reduced, the discomfort of the patient is reduced, the operation difficulty of medical staff is reduced and the operation process is accelerated.

The utility model provides a kind of detectable carbon dioxide type glottis upper ventilation structure, including gastroscope bite and ventilation catheter, ventilation catheter and gastroscope bite intercommunication, ventilation catheter intercommunication has multifunctional joint, and multifunctional joint is equipped with oxygen interface, multifunctional joint is also intercommunication with CO2 sampling pipe, and oxygen interface and ventilation catheter intercommunication, CO2 sampling pipe is located in ventilation catheter.In, multifunctional joint includes inner tube and outer tube, and ventilation catheter upper end is inserted into the annular space between inner tube and outer tube and is interconnected with outer tube lower end, and inner tube upper end is connected with CO2 sampling interface, and CO2 sampling pipe is inserted from inner tube lower end and is interconnected with CO2 sampling interface.The utility model can realize oxygen supply and carbon dioxide collection simultaneously or in operation by multifunctional joint during gastroscopy, solve the problem of patient hypoxia in current painless gastroscopy diagnosis and treatment, meet the demand of effective monitoring end-tidal carbon dioxide concentration, and ventilation oxygen supply and carbon dioxide detection can be carried out without stopping gastroscopy.

The protective cover is of a multi-section structure, the multi-section structure comprises a protective section located at the front end, a visual expansion section located in the middle and a gastroscope fixing section located at the rear end, and when a gastroscope is fixed to the gastroscope fixing section, the protective section reversely wraps the gastroscope; and the protection section is made of a medical elastomer material. According to the technical scheme, when foreign bodies in the digestive tract are taken out, mucous membranes of the whole esophagus, the junction of the esophagus and the stomach and the esophagus inlet can be protected, long foreign bodies and sharp foreign bodies can be conveniently taken out under an endoscope, the occurrence rate of complications of the upper digestive tract foreign body taking-out operation is reduced, and the safety and effectiveness of treatment are improved.

The invention relates to a ventilation device for gastroscopy in an anesthesia state, belongs to the technical field of medical instruments, and solves the problems that in the prior art, a gastroscope access channel and an oxygen supply channel are parallel, the occupied space of the oropharynx is large, placement is inconvenient, oxygen supply cannot be effectively guaranteed, and oral cavity tissue is prone to being damaged. The device comprises a protection tube unit and a ventilation catheter, wherein the ventilation catheter is arranged on the protection tube unit; the protective tube unit is used for being connected to the outer wall of a gastroscope in a sleeving mode during gastroscopy, and the outer wall of the gastroscope is prevented from rubbing the throat of a patient. High-flow oxygen is input into the respiratory tract of a patient through the gap between the protective tube unit and the gastroscope, so that the patient can keep effective breathing. According to the ventilation device, an existing gastroscope access channel and an existing oxygen supply channel which are arranged side by side are improved into the mode that only one pipe is used for effective ventilation, the gastroscope body of the gastroscope and the throat of a patient can be isolated at the same time, the occupied space of the oropharynx is small, implantation is convenient, and tissue damage is reduced.