4515 results about "Trach tube" patented technology

The invention discloses a medical image recognition processing system and method based on multi-modal image fusion, and belongs to the technical field of image processing, and the method comprises the steps: obtaining a medical image, and correcting the medical image to obtain an image data set; inputting the image data set into a parallel neural network, extracting to obtain tracheal tissue structure features and biological metabolism features, and fusing to generate a comprehensive image feature map; and comparing the fusion features of different organs in the comprehensive image feature map with features in a preset typical case feature library to generate risk assessment values of corresponding organs, and associating the risk assessment values with corresponding organs in a preset AR visual image. According to the method, the trachea tissue structure features and the biological metabolism features are extracted through the parallel neural network and fused to generate the comprehensive image feature map, then the comprehensive image feature map is compared with the typical case feature library to generate the risk assessment value, finally the risk assessment value is associated with the AR visual image, and effective fusion and utilization of multi-modal image data are achieved.

The invention provides a method for automatically segmenting a pulmonary artery tree and a tracheal tree on a CTPA image, and relates to the technical field of image processing, and the method comprises the steps: carrying out the data preprocessing of a pulmonary artery angiography image, and obtaining a preprocessed image; refining the preprocessed image to obtain a center line and a tubular structure radius; constructing three-dimensional Gaussian distribution according to the center line and the radius of the tubular structure, and obtaining a Gaussian distribution thermodynamic diagram according to the three-dimensional Gaussian distribution; inputting the preprocessed image into a first initial network to obtain an initial prediction result, and training the first initial network through the initial prediction result and a Gaussian distribution thermodynamic diagram to obtain a first segmentation network; inputting the preprocessed image into a first segmentation network to obtain a first segmentation result; and inputting the first segmentation result and the preprocessed image into a second segmentation network to obtain a final segmentation result. According to the method, the blood vessel segmentation technology is optimized through the Gaussian distribution thermodynamic diagram of the center line, and the recognition accuracy and segmentation precision of the model are improved.

Methods of treating a central airway obstruction (CAO), benign airway stenosis, asthma, chronic obstructive pulmonary disease (COPD), or an airway tumor in a human subject, methods of treating chronic rhinosinusitis (CRS) or chronic rhinosinusitis with nasal polyps (CRSwNP) in a human subject, methods of treating a eustachian tube disorder in a human subject, and devices and systems for performing the methods. A method of treating a central airway obstruction (CAO), benign airway stenosis, asthma, chronic obstructive pulmonary disease (COPD), or an airway tumor in a human subject includes inserting a drug-coated balloon catheter into a target site in a trachea, mainstem bronchus, bronchus intermedius, lobar bronchus, segmental bronchus, or sub-segmental bronchus, wherein the balloon is coated with a coating layer including the therapeutic agent and one or more additives. The therapeutic agent includes paclitaxel, sirolimus, or a derivative thereof. The method includes inflating the balloon to dilate the airway and deliver a therapeutic agent to the airway wall. The method includes deflating the balloon. The method also includes withdrawing the balloon catheter from the target site.

The invention discloses a trachea cannula displacement real-time monitoring method and device, and the method comprises the steps: S1, obtaining an internal image of an airway of a patient when a trachea cannula is located at a proper position, and taking the internal image as a standard image; s2, performing image analysis on the standard image to obtain standard state information of the airway tissue of the patient; s3, acquiring a current frame image in the airway of the patient; s4, carrying out displacement state analysis on the current frame image according to the standard state information of the airway tissue of the patient, and obtaining the current state information of the airway tissue of the patient and the similarity percentage between the current state information of the airway tissue of the patient and the standard state information; and S5, setting a displacement threshold value, comparing the similarity percentage with the displacement threshold value, judging that the trachea cannula is displaced when the similarity percentage is lower than the set threshold value, and otherwise, returning to execute S3. According to the invention, the real-time monitoring of the displacement of the trachea cannula is realized, a doctor can be reminded to process when the displacement is monitored, the calculation complexity is reduced, and the real-time monitoring capability is improved.

The invention provides a tracheal intubation automatic navigation method based on an artificial intelligence analysis anatomical structure, and relates to the technical field of tracheal navigation, and the tracheal intubation automatic navigation method comprises the following steps: carrying out image scanning on a user to obtain real-time airway image information; constructing a human airway image anatomical model, and performing anatomical structure analysis on the real-time airway image information according to the human airway image anatomical model to obtain anatomical structure data; connecting an electromagnetic navigation mechanical control system; the path planning subsystem analyzes the anatomical structure data to obtain a first intubation navigation path; and the path control subsystem synchronously generates intubation control parameters according to the first intubation navigation path, and controls a mechanical arm of intubation equipment to perform tracheal intubation on the user according to the intubation control parameters. The technical problem that in the prior art, due to the limitation that tracheal intubation operation depends on experience and skills of doctors, the intubation success rate is not high under the emergency condition can be solved, and the technical effect of improving the intubation success rate is achieved.

The invention relates to the technical field of lung demonstration models, and particularly discloses a lung demonstration model for breathing machine teaching, which comprises a storage bottle, a lung model and a trachea model, and is characterized in that the trachea model is connected with the lung model; the air pressure simulation mechanism is located in the base; the switching mechanism is located in the base; according to the lung demonstration model for breathing machine teaching, students control the air pressure simulation mechanism to simulate different states of air pressure of the lung through the switching mechanism, and the air passage blocking mechanism synchronously adjusts the size of the inner diameter of the trachea model. Therefore, data conditions monitored by the breathing machine in different pathological states of a patient in an actual scene are simulated, students are helped to practice preliminary judgment of lung and airway conditions of the patient according to data changes such as the tidal volume of the breathing machine, the learning effect of the students is enhanced, and various emergencies when the patient wears the breathing machine are simulated. And the actual strain capability of students is exercised.

At least some embodiments of the present disclosure are directed to systems and methods for managing sleep disordered breathing (e.g., obstructive sleep apnea) for a patient. A first implantable electrode delivers a first stimulation signal proximate to a first nerve of the patient to stimulate the first nerve and activate at least one first muscle for an upper airway dilation of the person. A second implantable electrode delivers a second stimulation signal proximate to a second nerve to stimulate the second nerve and activate at least one second muscle for a caudal tracheal traction for an upper airway of the person. A stimulation signal generator generates the first and second stimulation signals and coordinates the delivery of the first stimulation signal with the delivery of the second stimulation signal.

The invention discloses a transfer control method and device for an ultrasonic robot to autonomously scan thyroid gland, and the method comprises the steps: controlling an ultrasonic robot probe to move from an initial position to a target side by a first preset distance, collecting an ultrasonic image in real time, and recording a total movement distance and a distance to a trachea; obtaining a thyroid contour area based on the ultrasonic image, and determining the effectiveness of the ultrasonic image; if the continuous preset number of ultrasonic images are valid, determining that the probe completes two-side transfer; otherwise, contour features of the trachea and the carotid artery are obtained based on ultrasonic image fitting, and whether the probe completes two-side transfer or not is determined by combining the distance from the probe to the center of the neck; if not, whether the distance to the air pipe is larger than a second preset distance is judged; if not, whether the total moving distance is larger than a preset maximum distance or not is judged; if not, transferring is executed again; and if yes, determining that the probe completes two-side transfer. According to the method, the quality and efficiency of thyroid autonomous scanning are improved, and the safety and accuracy of operation are enhanced.

The utility model provides a tracheal stent structure and an artificial trachea. The tracheal stent structure comprises a main body, the main body comprises a plurality of supporting units which are linearly arranged at intervals; each supporting unit is of a C-shaped structure with an opening, a connecting unit is arranged between every two adjacent supporting units, and each connecting unit is of a structure with a hole. According to the tracheal stent assembly, the bionic tubular structure similar to the tracheal structure of the human body is formed by arranging the structure, so that the contraction and expansion functions can be achieved in the breathing process, and the physiological function requirements are met.

The invention relates to the technical field of laser cutting, and discloses an automatic loading and unloading profile laser cutting device, comprising a main body and a site adjustment component arranged above the main body, the site adjustment component is composed of X-axis, Y-axis and Z-axis adjustment parts, a cutting component is installed on the Z-axis adjustment part, a protective component is installed below the cutting component, a waste collection component is installed at the bottom of the main body, and a positioning and cleaning component is arranged on the front and rear sides of the waste collection component; when the bottom cover touches and presses on the surface of the profile, the exhaust fan connected to the connecting pipe is started, and a continuous airflow passes through the filter cover and is discharged through the connecting pipe, so that the air cavity of the left and right air pipes and the buffer cavity connected thereto form a negative pressure, causing the left and right piston rods to gradually withdraw from the buffer cavity, and compress the spring to aggregate inwardly, so as to achieve stable clamping of the profile, and then the laser beam generated by the laser cutting gun cuts the profile, and the metal debris generated by the cutting cannot escape the bottom cover, and is transported to the hopper for centralized storage with the flow of high-pressure airflow.

The invention relates to a tracheal intubation rescue guiding method and system based on intelligent monitoring and auxiliary decision making, and the method comprises the steps: detecting the real-time vital sign state of a patient based on an intelligent sensor for integrally monitoring vital sign indexes; real-time airway operation and anatomical structure images in the tracheal intubation process are obtained; a machine learning algorithm based on time sequence support vector regression is utilized, and through comparative analysis of historical vital sign data and current real-time data, real-time physiological health state evaluation indexes of the patient are obtained; on the basis of real-time airway operation and anatomical structure images, through edge detection, feature extraction and three-dimensional reconstruction technologies, tracheal intubation operation accuracy evaluation and tracheal anatomical structure anomaly recognition are carried out; real-time operation guidance is performed through intelligent aid decision making based on natural language processing and a knowledge graph by integrating real-time physiological health state evaluation indexes of a patient, accuracy evaluation of tracheal intubation operation and abnormal recognition of a tracheal anatomical structure.

The invention relates to a bacterial nanocellulose composite tube and a preparation method and application thereof, a three-dimensional network of bacterial nanocellulose is reserved, and the three-dimensional network is fully utilized as a dispersion phase to disperse introduced other macromolecules to form a homogeneous system; drugs such as heparin are encapsulated in situ or bioactive substances such as heparin are chemically grafted in the wall of the bacterial nanocellulose tube. Proteins such as silk fibroin, collagen, gelatin and fibronectin support adhesion and proliferation of cells, and the composite tube loaded with heparin has excellent anticoagulant activity and an effect of promoting endothelial cell function expression. The preparation process of the composite tube is simple, and the composite tube has a good application prospect in biomedical application of tubular artificial organs such as artificial blood vessels, artificial nerve conduits, artificial esophagus, artificial tracheas, bile ducts and the like.

The invention discloses a visual guide type tracheal intubation mirror system, relates to the technical field of guide type tracheal intubation mirrors, and aims to solve the problem of poor treatment effect of tracheal intubation. The constructed environment model not only comprises the diameter and the bending degree of the trachea, but also considers the surrounding tissue structure, so that a doctor can more comprehensively know the trachea and the surrounding environment of the trachea so as to make a more accurate decision, and the depth and angle information in the video image data is combined, so that the visual effect is improved. The real-time three-dimensional attitude of the intubation lens is estimated, the perception precision of the position and attitude of the intubation lens is improved, misoperation can be avoided, the structured light scanning method is combined with depth information and image coordinates for reconstruction, and compared with a traditional method, a three-dimensional model can be generated more quickly, the data quality of video data can be monitored in real time, and the real-time three-dimensional attitude of the intubation lens can be monitored more accurately. And the accuracy and stability of data are ensured. Therefore, data quality problems can be found and solved in time, and errors in subsequent diagnosis or treatment are avoided.

The invention relates to the technical field of airtightness detection, in particular to a pipeline welding seam airtightness detection device which comprises a base, a coating mechanism, a sealing mechanism, a supplementing mechanism, an inserting mechanism and a locking mechanism. The two toothed bars are driven by the motor and the rotating teeth to slide relatively, the two clamping sleeves are forced to get close to each other, the welding joint of the two steel pipes can be comprehensively wrapped without being affected by the length of the steel pipes, the two annular air bags are connected in an inserted mode to form a closed-loop air bag, the guide pipe and the connecting pipe abut against each other, and therefore the welding joint of the two steel pipes can be stably welded. The pull block and the connecting block are driven to respectively drive the top blocks hinged with the pull block and the connecting block to slide, so that the clamping plate and the adaptive plate are driven to extend outwards, and the two top plates are driven to extend outwards, so that a tight fitting effect is kept at the joint of the two annular air bags; whether air in the air bag leaks or not is judged by observing the height of the connecting plate in the connecting window, and then whether cracks exist at the weld joint or not can be judged.

The utility model discloses a closed sputum suction tube, including joint subassembly and sputum suction hose, joint subassembly includes flushing cavity, breathing cavity and sputum collection cavity, breathing cavity is equipped with breathing machine joint for connecting breathing machine pipeline, sputum collection cavity is equipped with the intubation joint for connecting trachea intubation, the sputum suction hose is equipped with the flushing cavity, and the flushing cavity is equipped with the flushing cavity and the sputum collection cavity. The flushing cavity is provided with a first flushing pipe; the sputum suction hose can penetrate through the flushing cavity, the breathing cavity and the sputum collecting cavity to enter the respiratory tract of a patient to suck sputum. The sputum suction hose comprises a sputum suction end and a negative pressure access end, the sputum suction end is used for sucking sputum, and the negative pressure access end is used for being connected with a negative pressure pipeline; the sputum collecting cavity is further provided with a second flushing pipe and a drainage pipe. By adopting the sputum aspirator, sputum coughed by a patient can be collected, the inner wall and the outer wall of the sputum aspiration hose are convenient to clean, the treatment efficiency is improved, and the treatment safety is improved.

The invention discloses a sleep apnea two-stage detection method, and relates to the field of respiration detection, and the sleep apnea two-stage detection method comprises the following steps: collecting a trachea sound signal of sleep respiration of a user, and generating a Mel spectrum of the trachea sound signal; wherein the trachea sound signal comprises a breathing audio signal and a heart sound signal; constructing a sleep-awakening detection model based on a VGG16 network, and calculating the sleep duration of the user; performing sleep apnea section detection on the Mel spectrum by adopting a longitudinal box algorithm AV-Box; extracting S1 peaks and S2 peaks of the potential sleep apnea section, and calculating an RR interval according to the time interval of the adjacent S1 peaks; acquiring statistical characteristics of the RR interval, and performing apnea detection by using a support vector machine (SVM) according to the statistical characteristics; and calculating the sleep apnea hypopnea index AHI of the user according to the sleep apnea times and the sleep duration counted according to the apnea detection result. Aiming at low diagnosis precision in a sleep apnea detection method based on a sound signal in the prior art, the detection precision is improved.

The invention relates to the technical field of medical simulation training, and particularly discloses a tracheal intubation training device which comprises a workbench and a model piece, the model piece is connected to the workbench, the workbench is used for fixing the model piece, the model piece is used for simulating the trachea of a patient and training the medical gas generation tube intubation technology, and a simulation assembly is arranged on the workbench. The simulation assembly is connected with the model piece, the simulation assembly is used for simulating the length of the trachea and simulating the diameter of the trachea, the trachea of different diameters and lengths are simulated through the simulation assembly, and then medical staff are trained to conduct intubation treatment on the trachea of different diameters and lengths; therefore, medical staff can be guaranteed to be capable of skillfully intubating the trachea with different sizes and diameters, and the trachea of a patient is prevented from being injured when the medical staff treats the patient.

Provided in the present application are an endoscope branch positioning method and apparatus based on airway detection and tracking, and a device. The method comprises: acquiring a bronchial image at each moment, and performing airway detection on the bronchial image, so as to obtain an airway hierarchy relationship of the bronchial images; determining a first matching pursuit result on the basis of an airway feature of a bronchial image at each moment in the past and an airway feature of the bronchial image; when the airway feature of the bronchial image does not match the airway feature of the bronchial image at each moment in the past, determining a second matching pursuit result on the basis of a tracheal-tree branch map and the airway hierarchy relationship; and determining a target matching pursuit result on the basis of the first matching pursuit result and the second matching pursuit result, wherein during matching pursuit, a new detection result in each image frame matches all historical pursuit results, and automatic recovery is implemented after an error occurs.

The invention belongs to the technical field of medical instruments, and particularly relates to a compact trachea cannula robot and a using method thereof. The robot comprises a supporting chassis, a supporting base rotationally installed on the supporting chassis through a connecting rod assembly, a double-layer parallel conveying mechanism arranged on the supporting base in a sliding mode, a tongue depressor mechanism arranged at the front end of the double-layer parallel conveying mechanism and a flexible section mechanism installed on the double-layer parallel conveying mechanism. The double-layer parallel conveying mechanism comprises a lower-layer linear conveying assembly and an upper-layer linear conveying assembly. A tongue depressor mechanism is arranged at the front end of the lower-layer linear conveying assembly, a flexible section mechanism is installed on the upper-layer linear conveying assembly, and the tongue depressor mechanism and the flexible section mechanism are arranged on the two layers of linear conveying assemblies which are independent of each other and associated with each other respectively so that separated linear driving of the tongue depressor mechanism and the flexible section mechanism can be achieved. The problems that in the prior art, tracheal intubation is large in occupied physical space, and a patient is prone to being injured are solved.

The invention discloses a wearable small animal electrical stimulation device, and belongs to the technical field of medical instruments, the purpose of connection is achieved by plugging a wiring terminal into an electric plugging seat, a pressing ring extrudes a piston cylinder after being pressed, gas is guided into a gas cushion ring through a gas pipe, and the gas cushion ring is connected with the wiring terminal. The air cushion ring expands and drives a plurality of sealing rings to be embedded into a sealing groove outside the power connection socket, the purpose of sealing connection between the fixing sleeve and the power connection socket is achieved, the situation that water seepage and dust accumulation are caused by a gap between the fixing sleeve and the power connection socket is prevented, and the end of a clamping strip in the locking assembly can retract into a sliding way after being pressed, so that the sealing effect is improved. When the clamping strip moves to the clamping groove, the clamping strip can be clamped into the clamping groove through elastic support of the second spring, so that the purpose of locking the position of the electric socket is achieved, and the situation that the electric socket and the wiring terminal are loosened due to the fact that a small animal is subjected to stress reaction when being electrically stimulated and a wire is pulled is prevented; and the use stability and the experiment precision of the electrical stimulation device are ensured.

The invention discloses an endoscope transnasal skull base dura mater stitching instrument, and relates to the field of medical instruments, the endoscope transnasal skull base dura mater stitching instrument comprises a stitching instrument main body, an end protection shell, a locking mechanism, an auxiliary mechanism, a connecting rope assembly and a trachea assembly, the locking mechanism comprises a locking sleeve arranged in a first position hole in a sliding mode, and the locking sleeve is of a cylindrical structure with one end open; an elastic body is fixedly arranged on the inner wall of the opening end of the locking sleeve, when the needle sleeve extends into the first position hole, the locking sleeve is controlled to move in the first position hole, and when the elastic body on the locking sleeve is clamped into the annular clamping groove in the outer ring of the needle sleeve, the needle sleeve is fixed to the locking sleeve. According to the invention, the purposes of pulling up the dura mater to facilitate suturing, position adjustment, knotting and degradation during suturing are simultaneously realized, and the defect that a knotting mechanism, a suturing mechanism and an endoscope mechanism cannot be simultaneously placed on a narrow skull base in the prior art is overcome.

The invention discloses a novel interstitial lung disease lesion detection method based on deep learning, and relates to the technical field of intelligent medical treatment, and the method comprises the following steps: obtaining an HRCT image of a patient, and carrying out the format conversion of the HRCT image to obtain a CT image; inputting the CT image into a U-Net, and carrying out pathological pulmonary parenchyma segmentation on the CT image to obtain a segmented image; determining a lesion candidate region of the segmented image; and evaluating the lesion candidate region to determine whether the lung disease lesion occurs in the lesion candidate region. According to the method, the lesion areas of different CT images are accurately positioned, and the lesion is correctly identified and false positive areas are removed by extracting the statistical features, the shape features and the fractal features of the lesion candidate areas under the condition of interference of blood vessels and tracheas, so that the detection accuracy of novel interstitial lung disease lesion detection is greatly improved.

The invention discloses an oil-immersed transformer with an explosion-proof protection structure, the oil-immersed transformer comprises an explosion-proof box body and an oil-immersed transformer installed in the explosion-proof box body, the top of the explosion-proof box body is fixedly provided with a small nitrogen generator, and the inner top wall of the explosion-proof box body is fixedly provided with a gas pipe; a pipeline on the small nitrogen generator is communicated with the interior of the gas pipe, the gas pipe is connected with a branch pipe communicated with the interior of the gas pipe, the branch pipe is fixedly provided with a first electric control valve, the gas pipe is provided with a second electric control valve, and the second electric control valve is located at the bottom of the branch pipe. In the aspect of flame retardance, the flame-retardant assembly is unique in design, and the movable plate, the expansion air bag, the storage box and other components are matched ingeniously. When fire extinguishing dry powder exists in the storage box and the inner wall is inclined, overheated or abnormally burnt, the push rod pulls the movable plate, nitrogen in the expansion air bag enters the storage box, the dry powder is blown out to form dry powder cloud, flames are effectively restrained, the explosion possibility is reduced, and reliable flame-retardant protection is provided for the oil-immersed transformer.

The invention provides a piezoelectric composite stent, a preparation method thereof and application of the piezoelectric composite stent in tracheal defect repair, and belongs to the technical field of tissue engineering. The preparation method of the piezoelectric composite stent comprises the following steps: (1) immersing a PLLA stent into an FF polypeptide solution to prepare a PLLA-FF stent; (2) the PLLA-FF stent is immersed in a tannic acid solution, and a PLLA-FF-TA composite stent is prepared; (3) preparing oxygen-containing PLGA (poly (lactic-co-glycolic acid)) nano microbubbles, and mixing the GelMA with the oxygen-containing PLGA nano microbubbles to obtain a Gel-NB hydrogel precursor; (4) injecting the Gel-NB hydrogel precursor into the PLLA-FF-TA composite scaffold, and carrying out ultraviolet light cross-linking on the Gel-NB hydrogel precursor and the PLLA-FF-TA composite scaffold; and carrying out ultrasonic irradiation to obtain the PLLA-FF-TA (at) Gel-Nb + US composite scaffold. The piezoelectric hydrogel stent is successfully prepared, can be well used for tracheal defect repair, has the advantages of good degradation performance, high piezoelectric performance, long-term stability and high strength, and is beneficial to clinical transformation and application.

The invention belongs to the technical field of part machining, and relates to an automobile turbocharger part machining device which comprises a mounting disc, and a plurality of clamping columns are arranged on the mounting disc in a sliding mode. An open dovetail groove is formed in one side of the installation disc and extends to the center of the installation disc, a dovetail block is slidably inserted into the dovetail groove of the installation disc, a guide support perpendicular to the dovetail groove is connected to the dovetail block, two limiting clamping plates slide on the guide support, a sliding block slides on the guide support, and a bidirectional lead screw is rotationally arranged on the sliding block. The two ends of the two-way lead screw are in threaded connection with the two limiting clamping plates correspondingly. By means of the limiting effect that the dovetail block moves front and back along the dovetail groove and the limiting effect that the limiting clamping plate and the sliding block move left and right along the guide support, an air pipe opening of the turbine shell faces forwards all the time, meanwhile, centering clamping of the turbine shell is completed through the clamping column, alignment and centering clamping are synchronously carried out, and therefore positioning machining treatment of the turbine shell is facilitated, operation is easy, and the machining efficiency is improved. And manual repeated use of tools for alignment and positioning is not needed.

The utility model discloses an integrated bronchus plugging catheter which comprises a tracheal catheter, a connector connected to the front end of the tracheal catheter and a bronchus catheter penetrating out of the tracheal catheter, and a partition wall extending in the length direction of the tracheal catheter is arranged in the tracheal catheter. The space in the tracheal catheter is divided into a first cavity and a fourth cavity by the partition wall, a bronchoscope or a drainage tube or a sputum suction tube is inserted into the fourth cavity, the bronchial catheter penetrates through the first cavity, a second blocking sleeve bag is fixed to the tail end, penetrating out of the first cavity, of the bronchial catheter, and a first blocking sleeve bag is fixed to the outer portion of the rear end of the tracheal catheter. Due to the fact that the bronchial catheter is limited in the first cavity, when a bronchoscope and the like are inserted into the fourth cavity, interference of the bronchial catheter is avoided; a minimum space enough to guarantee normal use of the bronchial catheter can be reserved according to the size of the bronchial catheter, so that sufficient space is reserved for insertion of a bronchoscope, a drainage tube, a sputum suction tube and the like, and smooth insertion of diagnosis and treatment equipment is guaranteed.

The invention relates to a tracheal intubation navigation method and device based on image segmentation and three-dimensional reconstruction, and belongs to the field of wisdom medicines.The tracheal intubation navigation method comprises the steps that an endoscope image frame sequence in the intubation process is collected, and image segmentation is conducted on the endoscope image frame sequence to obtain an intubation head segmentation profile diagram; the method comprises the following steps: performing three-dimensional reconstruction on the interior of a trachea by using an endoscope image frame sequence and adopting three network branches of monocular scene three-dimensional reconstruction, inter-frame multi-view geometric pose estimation and optical flow matching three-dimensional reconstruction to obtain a three-dimensional point cloud model of the interior of the trachea; performing pose estimation on the head of the trachea cannula through the segmentation contour of the instrument at the head of the trachea cannula in the endoscope image to obtain a three-dimensional point cloud model of the head of the trachea cannula and instrument estimation pose sequence information; and inputting the trachea internal three-dimensional point cloud model, the intubation head three-dimensional point cloud model and instrument estimation pose sequence information into a Unreal Engine virtual engine to generate a digital twin dynamic navigation image in the intubation process.

The invention provides a degradable combined type tracheal stent and an implantation method, the degradable combined type tracheal stent comprises a plurality of rib plates which are coaxially arranged and are in an annular shape and soft bodies which are connected between every two rib plates and are in a net shape, and axial length adjustability and axial bending deformation of a stent main body are achieved through the soft bodies; the support further comprises a connecting part, the connecting part comprises a first connecting body arranged at the two axial ends of the support body and a second connecting body matched with the first connecting body, and the first connecting body and the second connecting body are matched to achieve axial detachable connection and combination between every two support bodies. The adjustable axial length of the stent main body, bionic axial bending deformation and stable connection and combination between every two stent main bodies are effectively realized. The invention further provides an implantation method of the degradable combined type tracheal stent, the implantation method comprises the steps of obtaining the size of the diseased trachea, determining the diameter and the combination number of the stent body, sleeving the diseased trachea and connecting the combination to complete implantation, and the method is easy to operate and can meet different requirements of clinical complex environments.

The pair of expandable foreign body forceps comprises an outer sleeve and a foreign body forceps body, a limiting assembly is arranged at one end of the outer sleeve, and an expansion assembly is arranged at one end of the outer sleeve; the expansion assembly comprises a first notch formed in one end of the outer sleeve, an expansion air pipe is arranged in the first notch, one end of the expansion air pipe is fixedly connected with an expansion air bag, one end of the expansion air pipe is fixedly connected with a three-way pipe, one end of the three-way pipe is fixedly connected with an injector, and one end of the three-way pipe is provided with an expansion valve. A rotating plate is rotationally installed on the outer surface of the cylinder, an arc-shaped plate is fixedly installed on one side of the rotating plate, and an anti-skid pad is fixedly installed on the inner surface of the arc-shaped plate. According to the pair of expandable foreign body forceps, foreign bodies can be blocked while an esophageal cavity is expanded through the arranged expansion assembly, so that the situation that the foreign bodies are pushed to deeper tissues is prevented, and the efficiency of taking out the foreign bodies by the pair of expandable foreign body forceps is improved.

An endotracheal tube apparatus to treat a patient comprising an endotracheal tube and a hub connection fitting; the endotracheal tube insertable into a trachea of the patient; the hub connection fitting connectable to the endotracheal tube; a ventilation passageway extending through the hub connection fitting and a ventilation lumen of the endotracheal tube; a plurality of ports joined with the hub connection fitting, the plurality of ports comprising at least a first port and a second port; a first passageway extending within the hub connection fitting, the first passageway in fluid communication with the first port; a second passageway extending within the hub connection fitting, the second passageway in fluid communication with the second port; a third passageway extending within the hub connection fitting and a secondary lumen of the endotracheal tube.