39 results about "Glottis" patented technology

The invention relates to the field of medical equipment, in particular to a visual double-cavity laryngoscope and thyrocricocentesis integrated device for difficult airways, which comprises a double-cavity laryngoscope main body and a thyrocricocentesis device, the outer surface of the double-cavity laryngoscope main body is fixedly connected with a connecting plate, the other surface of the connecting plate is fixedly connected with a hemispherical shell, and the hemispherical shell is fixedly connected with the double-cavity laryngoscope main body. The integrated structural design is adopted, the core functions of a visual double-cavity laryngoscope and a cricothyroid membrane puncture instrument are organically integrated, the current situation that the two traditional instruments are independently used and need to be frequently switched is thoroughly changed, an operator can sequentially complete glottis exposure and tracheal intubation operation on the same device, and if intubation fails or a patient suffers from emergency oxygen deficit, the visual double-cavity laryngoscope and the cricothyroid membrane puncture instrument can be directly used. The cricothyroid membrane puncture device which is assembled in place can be directly used for implementing puncture without additionally replacing instruments, so that the operation continuity is greatly improved, the key time for establishing an airway is effectively shortened, and the oxygen deficit risk of a patient caused by instrument switching is fundamentally reduced.

The utility model relates to the technical field of medical instruments, in particular to a laryngoscope which comprises a handle, a tongue pressing piece connected to one end of the handle and a display device connected to the other end of the handle, the tongue pressing piece is provided with a first installation cavity, and a camera, a first laser emitting head and a second laser emitting head are arranged in the first installation cavity. The first laser emission head and the second laser emission head are respectively used for emitting a first laser beam and a second laser beam which are arranged in parallel at an interval to the glottis of a human body, and the shooting direction of the camera is parallel to the first laser beam and the second laser beam; the first laser beam and the second laser beam irradiate the glottis of a patient to form two light spots with the fixed distance, the first laser beam, the second laser beam and the two light spots and the light beam can be displayed in a display picture of the display device, and the two light spots, the first laser beam and the second laser beam can provide references for doctors. A doctor can conveniently judge the glottis size of a patient, and then the doctor can conveniently determine the specification of the tracheal catheter.

The invention relates to an airway path planning method and device based on a throat CT image and computer equipment. The method comprises the following steps: acquiring a throat CT image; the throat CT image is preprocessed, the preprocessing includes unifying thickness parameters of the throat CT image, and data expansion processing is carried out on a target layer, including the glottis part, in the throat CT image with the consistent thickness parameters in a copying mode; inputting the preprocessed throat CT image into the trained three-dimensional segmentation model for three-dimensional segmentation to obtain a segmented airway three-dimensional structure; obtaining a path constraint condition according to the obstacle differentiation weights of different areas in the divided airway three-dimensional structure; layering treatment is carried out on the divided airway three-dimensional structure, and a multi-layer airway cross section is obtained; obtaining a center point sequence based on the center point coordinates of the cross sections of the multiple layers of airways; and obtaining an initial airway path corresponding to the throat CT image based on the target point in the airway, the center point sequence and the path constraint condition.

The application discloses a foldable intubation positioning auxiliary device for a pediatric anesthesia department, which comprises a bite plate in an arc shape, a tongue depressor is connected to the side wall of the bite plate through a rotary limiting device, the front end of the tongue depressor is arranged in a downward bending shape, a piezoelectric ceramic sheet is fixedly connected to the bottom side of the front end of the tongue depressor, an intubation opening is formed in the middle part of the bite plate and is arranged in a penetrating mode, a rotating wheel is rotatably connected to the intubation opening, a pressing block is connected to one side of the intubation opening through an elastic pressing device, and one side of the pressing block is close to the rotating wheel. The piezoelectric ceramic sheet is stimulated to vibrate at low intensity to stimulate the laryngeal muscles of a child during intubation by using a mild physical stimulation mode, the glottis is naturally opened, the precision, safety and convenience of intubation operation are improved, and the device is especially suitable for obese children patients with difficulty in glottis exposure.

The utility model relates to the technical field of medical instruments, in particular to an auxiliary air pillow suitable for tracheal intubation, which comprises a shoulder bolster, a neck bolster is arranged on one side of the shoulder bolster, one side of the neck bolster far away from the shoulder bolster is communicated with a head bolster, and the neck bolster is in a slope shape. A first air bag is installed in the shoulder bolster, a second air bag is connected in the neck bolster and the head bolster, the first air bag and the second air bag are both connected with an inflation pipe, and the other end of the inflation pipe is connected with an inflation pump. According to the utility model, through the arrangement of the shoulder bolster, the first air bag is inflated, so that the placement function of a cannulation body position of a classical laryngoscope body position can be realized; through the arrangement of a head pillow and a neck pillow, a second air bag is inflated, so that the placement function of an intubation position at a flower smelling position can be realized; the two intubation body positions are placed, so that the problems of insufficient glottis exposure and high operation difficulty are solved.

The present application relates to a kind of multi-dimension lock regulating airway management training model, comprising: neck range of motion adjustment unit, neck range of motion adjustment unit is used to simulate the normal activity state and activity limited state of neck;Tongue body swelling simulation unit, tongue body swelling simulation unit is used to simulate the natural state and different degrees of swelling state of tongue body;Glottic area stenosis simulation unit, glottic area stenosis simulation unit is used to simulate the natural open state and different degrees of stenosis state of glottic area;Multi-dimension lock regulating airway management training model is configured to: by independently adjusting neck range of motion adjustment unit, tongue body swelling simulation unit and glottic area stenosis simulation unit, the laryngeal view of model is presented as a plurality of preset states corresponding to different levels of difficult airway.The present application can simulate different levels of difficult airway scene, accurately restore the difficult airway caused by single factor or multi-factor superposition in clinic.

The invention relates to the technical field of tracheal intubation, in particular to a bedside ultrasonic laryngeal edema and aspiration prevention tracheal intubation device which comprises an intubation component, the lower end of the intubation component is connected with an intubation head component, and a visual laryngoscope and a plurality of miniature ultrasonic probes are mounted on the intubation head component. According to the application, medicines such as glucocorticoid in the medicine temporary storage bin can be accurately atomized and conveyed to the periphery of the glottis under the action of the micro piezoelectric atomization piece, continuous low-negative-pressure suction can be performed on the upper gap of the glottis through the micro diaphragm pump according to feedback of the pressure sensing assembly, retentate on a capsule is effectively removed, and aspiration and related pneumonia are prevented; by means of fusion of ultrasonic image features and multi-sensor data, the risk of laryngeal edema can be intelligently judged, starting and stopping of atomization drug delivery and negative pressure suction of the miniature diaphragm pump are automatically controlled in a linkage mode, full-process closed-loop management from intubation positioning, intraoperative protection to intervention before tube drawing is achieved, and the risk of complications related to tracheal intubation is remarkably reduced.

This application provides a guided laryngoscope, comprising: a gripping part, a curved part, and a tongue-lifting part. The curved part is connected to one end of the gripping part and has a guide groove for guiding an intubation tube. One end of the tongue-lifting part is connected to the end of the curved part away from the gripping part and is located on a side facing the gripping part. The other end of the tongue-lifting part extends along the curvature of the curved part. The guide groove has an inlet end and an outlet end. The first angle between the extension line of the outlet end and the central axis of the gripping part is smaller than the second angle between the extension line of the end of the tongue-lifting part and the central axis of the gripping part. This design can correct the angle at which the intubation tube sinks due to gravity after leaving the guide groove, allowing the intubation tube to directly enter the glottis for observation and airway management.

The utility model provides a controllable subglottic suction connector. The controllable subglottic suction connector comprises a connecting body, a first sealing piece and a second sealing piece. The connecting body is provided with a first connecting end, a second connecting end and a third connecting end which are communicated with one another. The first sealing piece is movably installed at the second connecting end so as to control the second connecting end to be opened or closed. The second sealing piece is movably installed at the third connecting end so as to control the third connecting end to be opened or closed. The controllable subglottic suction connector at least has the following advantages that operation is flexible and convenient, pressure relief is sufficient, and the injury risk of respiratory tract mucosa of a patient is reduced; 2, the sputum suction device and the subglottic suction tube do not need to be repeatedly pulled and inserted for many times, and cross infection caused by sputum secretions and generated aerosol can be effectively avoided; and 3, the design structure is simple, materials are convenient to take, the operation is convenient, and the manufacturing cost and the use cost are low. And 4, the thumb is not in direct contact with sputum in the connecting body, so that the risk of occupational exposure of nurses is greatly reduced.

The invention provides a dynamic glottis closing judgment method and system based on deep learning, and the method comprises the steps: carrying out the frame-by-frame screenshot of a laryngoscope video, generating a series of static image frames, and obtaining a video frame sequence data set; carrying out manual frame-by-frame labeling on a glottis region in the video frame sequence data set, and constructing an image-mask paired training data set; training a G-UNet network by using the training data set, and constructing a glottis segmentation model; performing pixel-level semantic segmentation on the original static image frame of the laryngoscope based on a glottis segmentation model to obtain a glottis binary mask image; and carrying out frame-by-frame pixel-level area identification on the glottis binary mask image, calculating a glottis opening area, and obtaining a glottis closing state based on the glottis opening area. According to the technical scheme, the laryngoscope video can be processed in real time, the workload of manual observation is remarkably reduced, and the repeatability and objectivity of an analysis result are improved.

The utility model relates to the technical field of medical auxiliary instruments, in particular to an anti-pollution device for a trachea cannula, which comprises a protective cylinder, and the protective cylinder is used for protecting and wrapping the head end of the trachea cannula, so that the protective cylinder prevents the trachea cannula from being in contact with the inside of the mouth of a patient when the trachea cannula enters the airway of the patient through the glottis. When the trachea cannula is located outside the glottis, the head end of the trachea cannula is converged in the protection barrel, when the head end of the protection barrel is located near the glottis of a patient, the head end of the trachea cannula penetrates out and enters the airway from the glottis, the protection barrel wraps and protects the trachea cannula from the position between the glottis and the teeth of the patient, and the trachea cannula is not polluted by saliva when entering the airway. The grooves are formed in the two sides of the bite block and used for occlusion of a patient, meanwhile, the grooves in the upper side and the lower side conform to the staggered physiological structure of upper teeth and lower teeth in the mouth of the human body, the grooves in the upper side deviate outwards compared with the grooves in the lower side and conform to the physiological characteristics of the human body, and the matching degree between the grooves and the patient during occlusion is improved.

The invention discloses a glottis state monitoring method, equipment, a product and a medium, and relates to the technical field of signals. The method comprises the following steps: acquiring a vibration signal of a throat when a user makes a sound; performing frequency domain analysis on the vibration signal to determine a harmonic structure parameter; when the harmonic structure parameter is not smaller than a preset air leakage judgment threshold value, dividing the vibration signal into a plurality of single-period vibration segments; based on the change characteristics of the vibration intensity in each single-period vibration segment, determining impact characteristic parameters; determining asymmetric characteristic parameters based on the distribution characteristics of the vibration time sequence in each single-period vibration segment; determining a first glottis state based on the impact characteristic parameter and the asymmetric characteristic parameter; and when the harmonic structure parameter is smaller than a preset air leakage judgment threshold value, determining a second glottis state. The method has the effect of improving the monitoring accuracy of the glottis state.

The visual guide type laryngoscope comprises a handle, a guide part and a guide groove, wherein the guide groove is integrally connected with the handle, is bent in an arc shape and is provided with an intubation tube, and the guide groove is provided with a tube inlet end and a tube outlet end; the tongue lifting lens is arranged at one end, far away from the handle, of the guide part and extends towards one side of the handle, the camera is arranged on one side of the tube outlet end of the guide groove, and the visual angle central axis of the camera is inclined towards the direction of the movement axis of the intubation tube after the intubation tube extends out along the tube outlet end of the guide groove; and the light source is arranged on one side of the camera. When the intubation operation is carried out, the intubation position can be located in the central area of a video shot by the camera, so that the intubation position does not need to be observed by repeatedly moving the laryngoscope, the intubation can be guided to the glottis more conveniently, the intubation difficulty is reduced, and the intubation success rate is guaranteed.

The invention discloses a visual trachea cannula guide core device. The visual trachea cannula guide core device comprises a hollow guide core body, a guide wire arranged in the guide core body, a probe installed at one end of the guide wire, a rotary knob assembly arranged on one side of the guide core body and a pressing assembly arranged on one side of the rotary knob assembly. And the knob assembly is provided with a channel through which the guide core body passes and which is connected with the pressing assembly. The probe is electrically connected with an external display device through the guide wire, so that relevant information, detected by the probe, of the width and the height of the laryngeal glottis of a patient can be displayed on the external display device in real time, a doctor can observe the size condition of the laryngeal glottis of the patient in real time, a reference basis is provided for follow-up adapting to tracheal intubation tubes with different diameters, and the patient experience is improved. Meanwhile, the one-time success rate of tracheal intubation can be greatly improved, and the life safety of a patient is guaranteed; the guide wire can be driven to rotate through the knob assembly, so that the angle of the probe can be adjusted to adapt to laryngeal structures of different patients.

The application discloses a glottal state monitoring method and system based on weak supervision learning, comprising the following steps: acquiring a glottal image and point labeling the glottis, and constructing a glottal segmentation dataset; generating pseudo-labeling of the glottal boundary from the point labeling based on an automatic seed region growing algorithm, and updating the glottal segmentation dataset; designing a dynamic structure similarity loss function based on the updated glottal segmentation dataset, and training a convolutional neural network model under weak supervision; extracting a glottal image in real time from a video stream, and segmenting the real-time extracted glottal image based on the trained convolutional neural network model; displaying the segmentation result based on an operation display platform, drawing a glottal area change curve, and giving an early warning for abnormal conditions. The application solves the problem that a medical image dataset is difficult to construct, and overcomes the defect that a large amount of time is required for manufacturing an existing deep learning dataset.

This invention relates to an adjustable-bend video rigid endoscope for endotracheal intubation, comprising a core tube assembly and a display. The core tube assembly includes a plastic sheath, a deformable core, a suction tube, and a camera. The suction tube is inserted into the plastic sheath, with its distal end extending to the distal end of the plastic sheath. The distal end of the suction tube can be connected to a negative pressure source. The camera is fixedly mounted at the distal end of the deformable core's inner hole, and the video signal captured by the camera can be transmitted to the display. This invention allows for adjustable curvature and direction of the tube during intubation, providing visual assistance. The special material and lubricated design of the plastic sheath reduce intubation resistance, improving the smoothness of the procedure and patient comfort. This endoscope effectively addresses difficult airways caused by abnormal anatomical structures in the pharynx and larynx, such as those with preglottic masses obstructing vision, limited mouth opening, limited neck mobility, or a high glottis, further facilitating glottic exposure and improving the safety and convenience of endotracheal intubation.

An applicator apparatus has a delivery tube with differently curved tube sections along the length of the delivery tube so as to be tailored for airway topicalization during video laryngoscopy. The apparatus aims to enhance the precision and effectiveness of airway topicalization, particularly in scenarios where conventional applicators encounter challenges due to the acute angle of the laryngoscope blade. By conforming to the shape of the video laryngoscope, a sigmoidal shape of the delivery tube facilitates precise targeting of glottic structures and the posterior pharynx. This innovation is particularly beneficial for short procedures requiring endotracheal intubation, as proper topicalization is known to reduce coughing and bucking on extubation, mitigating potential surgical complications and minimizing the aerosolization of respiratory particles and viruses.

The application relates to the technical field of laryngoscopes, and discloses a detachable multifunctional soft tube mirror intubation guide, which comprises a laryngoscope blade and a laryngoscope handle fixedly connected with one end of the laryngoscope blade, and a display screen is electrically connected in the laryngoscope handle; the detachable multifunctional soft tube mirror intubation guide further comprises a support tip movably arranged at one end of the laryngoscope blade away from the laryngoscope handle, the support tip is adjusted in angle through a lifting adjusting assembly to be suitable for different patients, a camera for electrically connecting with the display screen is arranged on an extension end of the laryngoscope blade, and a telescopic lifting assembly is arranged in the laryngoscope blade and extends to one side of the support tip, so that the lifting adjusting assembly can lift the epiglottis to expose the glottis, and smooth ventilation can be realized; the detachable multifunctional soft tube mirror intubation guide solves the problems that the length and angle of the conventional laryngoscope blade are fixed, the adaptability is poor, the laryngoscope blade cannot adapt to physiological differences of throats of different patients, the glottis cannot be accurately exposed, and the quantitative adjusting structure relies on manual experience operation and is prone to cause throat injury of the patient and operation failure.

1. Name of the product in this design: Split-lens anesthesia video laryngoscope (adult airway version). 2. Purpose of this design: To expose the glottis by lifting the epiglottis of the patient in clinical practice, to guide medical staff to accurately perform airway intubation for anesthesia or emergency treatment, and can also be used for intraoral examination and treatment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of airway opening devices, in particular to an airway opening device based on a ratchet mechanism, which comprises an opening retainer, a laryngoscope tube structure and a supporting block, the laryngoscope tube structure comprises a laryngoscope tube end part, a tube body and a pulling structure, the pulling structure is mounted on the laryngoscope tube end part, the arc-shaped tube body is mounted at the lower end of the laryngoscope tube end part, and the supporting block is mounted on the laryngoscope tube end part. An air inlet communicated with the tube body is formed in the end of the endoscope tube, a supporting block is hinged to the tail end of the tube body, a vertically-through ventilation channel is formed in the opening retainer, and the lower end of the tube body penetrates through the ventilation channel. The laryngoscope tube is reasonable and compact in structure and convenient to use, the opening retainer and the laryngoscope tube structure are combined for use, the supporting block connected with the tail end of the tube body is adjusted to achieve rapid opening of the airway of a patient with difficulty in airway opening such as obesity, short and thick neck and limited mouth opening, and the lifting degree of the supporting block can be flexibly adjusted according to examination requirements. Therefore, the glottis opening degree is adjusted, the application range is larger, and the glottis opening degree adjusting device can adapt to more people.

The invention relates to the technical field of movable laryngoscopes, in particular to a movable laryngoscope with a light supplementing function. According to the technical scheme, the laryngoscope comprises a handle, a display screen rotationally installed on the handle and a laryngoscope fixedly installed at the bottom of the handle and further comprises a guide pipe, the guide pipe is fixedly installed on the laryngoscope, one end of the guide pipe is provided with an input hole allowing the guide pipe to be inserted, and the other end of the guide pipe is provided with a steering mechanism. The steering mechanism adjusts the catheter end to point to the glottis direction. The direction of the head of the catheter is adjusted through the guide tube and the steering mechanism, so that the catheter is aligned with the glottis, the catheter can be directly inserted into the glottis after alignment, the moving catheter cannot make direct contact with the throat, and therefore the situation that the throat of a patient is stimulated is prevented; by adjusting the direction of the head of the catheter, the problem that the catheter is difficult to insert into the glottis is solved, the catheter is prevented from being difficult to insert, and the intubation success rate and the operation efficiency are improved.

The utility model discloses a throat breather pipe which comprises a breather pipe body, a ventilation cavity is formed in the breather pipe body, a first sleeve bag used for sealing the glottis of a patient and a second sleeve bag used for sealing the esophagus of the patient are arranged on the breather pipe body, and the first sleeve bag and the second sleeve bag are filled with sponge-shaped materials respectively. The surface of each of the first cuff and the second cuff has a fixed shape and is deformable. The first sleeve bag and the second sleeve bag are filled with the sponge-shaped materials respectively, so that when inserted into the body of a patient, due to the flexibility of the sponge-shaped materials, the insertion contact pressure between the sponge-shaped materials and the surface of the internal tissue of the patient is small, insertion damage to the patient is avoided, the original shape can be automatically recovered after the sponge-shaped materials are inserted, and the safety of the patient is improved. The glottis and esophagus of a patient are closed, and the sealing performance is better.

The invention provides a nasal cavity and throat image structure recognition method and device, equipment and a medium, and the method comprises the steps: inputting a to-be-recognized nasal cavity and throat endoscope image into a first structure recognition model, and determining a main structure type to which the to-be-recognized nasal cavity and throat endoscope image belongs; if the main structure category is a laryngeal glottis region category, determining a vocal cord state subtype recognition result to which the to-be-recognized nasal pharyngoscope image belongs based on central region features of the to-be-recognized nasal pharyngoscope image; and if the main structure category is a non-glottis region category, inputting the to-be-identified nasal pharyngoscope image into the second structure identification model, determining an anatomical position subtype identification result under the main structure category to which the to-be-identified nasal pharyngoscope image belongs, and identifying the anatomical position subtype of the to-be-identified nasal pharyngoscope image by introducing a hierarchical identification strategy. The problems of feature confusion and class imbalance caused by task target conflicts of a traditional single-stage model are effectively solved, and the accuracy of vocal cord state judgment and sub-part positioning and the model generalization ability are remarkably improved.

The invention discloses an adjusting device for adjusting glottis size and neck angle, which comprises a bed frame (1) for placing a patient and a positioning belt (a) capable of being sleeved on the shoulder of the patient, the whole bed frame (1) is a cuboid box-shaped structure, one side of the bed frame (1), which is positioned on the head, is concavely provided with a head fixing groove (b), and the positioning belt (a) can be sleeved on the shoulder of the patient. Side plates (2) located on the two sides of the head of a patient are fixedly installed on the two sides of the head fixing groove (b) respectively, and a headrest (3) used for supporting the afterbrain of the patient, a neck support (4) used for supporting the rear neck of the patient and an electric push rod (5) used for driving the headrest (3) and the neck support (4) are arranged in the fixing groove (a). The glottis exposure device is simple in structure, and can drive the neck support and the headrest linked with the neck support to automatically adjust the hypsokinesis and anteflexion degrees of the head and neck of the device by means of driving of the electric push rod through the multiple connecting rods, so that the three axes of the mouth, the throat and the throat are approximately overlapped, and the optimal glottis exposure effect is achieved.

The invention relates to a visual nasopharynx-imbedded airway / tracheal catheter system which comprises an airway catheter internally provided with an oxygen supply airway and a laryngeal anesthesia tube imbedded in the pharynx of a patient through the oxygen supply airway, a jacking air bag is arranged on one side of the front end of the laryngeal anesthesia tube, a local anesthetic administration channel is arranged in the laryngeal anesthesia tube, and the local anesthetic administration channel is communicated with the airway catheter. A camera is arranged at the front end of the ventilation catheter, an inclined plane is arranged at the front end of the ventilation catheter, the normal direction of the inclined plane is opposite to the epiglottis direction, and an air bag is arranged at the front end of the ventilation catheter. The ventilation catheter is matched with the laryngeal anesthesia tube with the jacking cuff to penetrate into the epiglottis from the nasal cavity of a patient, the tip is guided by the camera to accurately reach and be maintained below the epiglottis and above the glottis, the soft palate, the tongue and the epiglottis can be supported, upper respiratory tract obstruction caused by collapse of the three structures due to sedation or diseases is effectively avoided, and the operation is simple and convenient. The respiratory tract smoothness is maintained.

The modularized bronchoscope sheath comprises a rear-end fixing body and a front-end detachable insertion part, a standardized rapid connection structure is arranged at the front end of the rear-end fixing body, the front-end detachable insertion part is rapidly connected and matched with the standardized rapid connection structure, and an upward-picking bent section of 15-30 degrees is arranged at the front end of the front-end detachable insertion part. Various lengths and outer diameter specifications can be set, through the modular split design, a hospital only needs to configure 2-3 sets of fixing bodies to cover the whole-scene clinical requirements, glottis picking and intubation can be completed through single-person operation due to the design of the front end upward-picking bent section, the success rate of initial intubation of a difficult airway is increased, and the laryngeal mucosa injury rate is reduced; and the method is suitable for full-scene application of conventional respiratory intervention operation and emergency treatment difficult airway management.

The invention discloses a pediatric anesthesiology department foldable intubation positioning auxiliary device which comprises an arc-shaped biteplate, the side wall of the biteplate is connected with a tongue depressor through a rotary limiting device, the front end of the tongue depressor is arranged in a downward bending shape, the bottom side of the front end of the tongue depressor is fixedly connected with a piezoelectric ceramic piece, and the piezoelectric ceramic piece is fixedly connected with the side wall of the biteplate. And a pipe inserting through opening is formed in the middle of the biteplate in a penetrating mode, a rotating wheel is rotationally connected into the pipe inserting through opening, one side of the pipe inserting through opening is connected with an abutting block through an elastic abutting device, and the abutting block is close to the side of the rotating wheel. A mild physical stimulation mode is adopted, the piezoelectric ceramic piece stimulates the laryngeal muscle of the child through low-intensity vibration in the intubation process, the glottis is promoted to be naturally opened, the accuracy, safety and convenience of intubation operation are improved, and the device is particularly suitable for obese child patients with the glottis difficult to expose.

The present invention relates to a device made of silicone or another polymer material that preferably covers the teeth from tooth number 7 to tooth number 16 on the left part of the patient's upper dentition. The protector includes a metal reinforcement or wire on the lower part on which the blade of a laryngoscope can rest and a lever action can be applied to lift the base of the tongue and thus safely expose the patient's glottis without affecting the dentition. The length of the wire is covered by the silicone or polymer material, and each end of the protector has a clamp-shaped reinforcing plate that prevents the protector from moving while the laryngoscopy is being performed. The wire and the reinforcing plates serve to distribute the load exerted during the laryngoscopy procedure, keep the blade away from the dentition and allow safe leveraging. The wire also serves to change the shape of the protector and adapt it to the dental morphology of each patient. This protector does not require sterilisation, only disinfection, and it can be reused.

The application discloses a difficult airway laryngoscope soft tissue active traction system and laryngoscope based on micro-fluid negative pressure adsorption, which comprises a micro-fluid negative pressure adsorption network arranged on a lens working surface, which generates distributed adsorption force to stabilize the traction of the tongue root and the pharyngeal lateral wall; a driving unit arranged in a handle, which automatically lifts and pulls the lens by using negative pressure to drive a piston; a clamping table sleeved on the outer side of the handle and slidable in the axial direction, which abuts against the lower jaw of a patient to provide a counterforce fulcrum; and a lifting degree adjusting mechanism connected between the piston rod and the root of the lens, which realizes the accurate fine adjustment of the lifting height of the lens in a hand-off state through a vertical sliding groove, a sliding block and a knob. The application is of the adsorption-traction mode, cooperates with the lower jaw support and the fine adjustment mechanism, releases the hands of an operator, continuously adjusts the glottis exposure degree according to real-time video feedback, improves the glottis exposure angle and the first intubation success rate, and is suitable for difficult airway scenes such as tongue hypertrophy and cervical spine rigidity.

The present invention relates to the technical field of oropharyngeal ventilation catheters, and discloses an adjustable, visual, and intubable oropharyngeal ventilation special-shaped catheter seat, the oropharyngeal ventilation catheter comprising an oropharyngeal airway, a lower pressure seat connected to the oropharyngeal airway, the lower pressure seat abutting against the tongue root, exposing the glottis and laryngeal structure, and facilitating operation by medical staff; a driving portion arranged on the oropharyngeal airway, and a connecting wire arranged on the driving portion, the oropharyngeal airway and the lower pressure seat both being provided with two threading holes, one end of the connecting wire being arranged on the driving portion, the other end passing through one of the threading holes and the lower pressure seat in sequence, coming out from the other threading hole and being connected to the driving portion; through the movement of the driving portion, the length of the connecting wire wrapped around the connecting sleeve is adjusted, the lower pressure seat is deformed and its curvature is changed, so that it abuts against the patient's tongue root.