185 results about "Laryngeal part" patented technology

The invention discloses a bionic TENG sensor unit for an artificial throat and a preparation method thereof, and relates to the field of artificial throats, and the sensor unit comprises a gradient micro-dome friction layer, a strain amplification layer, an electrode layer and a back cavity substrate layer. The gradient micro-dome array realizes gradual contact through gradient change of height and diameter; the strain amplification layer converts vertical vibration into horizontal strain by using a cantilever beam-sliding block structure; the back cavity array selectively amplifies vibration at a specific frequency based on the Helmholtz resonance principle. The invention further provides a corresponding preparation method. The preparation method comprises the steps of back cavity forming, electrode deposition, microstructure manufacturing, surface treatment and the like. The sensor has the advantages of high sensitivity, good frequency selectivity and strong durability, and is particularly suitable for detecting weak laryngeal vibration signals of laryngeal patients.

The invention discloses an image segmentation method and system, and relates to the technical field of image segmentation. According to the image segmentation method, to-be-segmented laryngoscope medical image data is obtained and input into a pre-trained image segmentation model for preliminary segmentation processing, and a laryngoscope structure segmentation image is generated and comprises a plurality of laryngoscope segmentation areas and corresponding segmentation data sets; performing comprehensive analysis to obtain a structure segmentation perception index of each throat segmentation region, performing analysis to obtain a plurality of low-confidence throat regions, and inputting the low-confidence throat regions into an image restoration model in combination with a segmentation data set of a set annular adjacent throat segmentation region for analysis to obtain an enhanced segmentation data set of each enhanced throat region; according to the method, the laryngoscope structure segmentation image is updated through the enhanced segmentation data set of each enhanced laryngoscope region to obtain the structured laryngoscope tissue segmentation image, so that the enhanced regions have the consistency of pixel levels, and the segmentation precision and clinical availability are effectively guaranteed.

The invention discloses a portable swallowing function screening system based on multiple modes. The portable swallowing function screening system comprises a signal acquisition device, a data processing device and an interactive display device which are connected in sequence, the signal acquisition device is used for acquiring a laryngeal pressure signal, a laryngeal acoustic vibration signal and a swallowing acoustic wave signal of a patient; the data processing device is used for performing feature extraction and feature fusion according to the throat pressure signal, the throat sound vibration signal and the swallowing sound wave signal to obtain a multi-modal fusion feature, and calculating a swallowing disorder risk probability through a preset deep learning model according to the multi-modal fusion feature; the interactive display device is used for judging the swallowing function according to the swallowing disorder risk probability and displaying the screening result of the swallowing function according to the judgment result.

The invention discloses a laryngeal mask airway which comprises a ventilation catheter, the far end of the ventilation catheter is provided with a mask bag, the mask bag is used for forming tight connection conforming to an anatomical structure at the laryngeal entrance of a patient and covering the laryngeal entrance of the patient to form sealing, and the mask bag is filled with a sponge-shaped material. The surface of the mask bag has a fixed shape and is deformable, and the mask bag can be jointed on the anatomical structure of the laryngeal entrance part of a patient. The sponge-shaped material is filled in the mask bag, so that when the mask bag is inserted into the throat position of a patient, the insertion contact pressure with the throat surface of the patient is small, insertion damage to the throat of the patient is avoided, and the mask bag can automatically recover to the original shape after being inserted, can be jointed on an anatomical structure of the throat inlet part of the patient and is in sealing contact with the peripheral side of the throat of the human body; and the sealing performance is better.

The utility model discloses a laryngeal breather pipe which comprises a breather pipe body, a breather cavity and an esophagus drainage cavity are arranged in the breather pipe body, a laryngeal cuff and an esophagus cuff are arranged on the breather pipe body, and an air outlet of the breather pipe body is formed in the pipe wall of the pipe section, between the esophagus cuff and the laryngeal cuff, of the breather pipe body. The patient end of the breather pipe is connected with a soft head which can be conveniently inserted into the esophagus of a patient, a drainage hole communicated with an esophagus drainage cavity is formed in the soft head, the laryngeal cuff is arranged between the esophagus cuff and the machine end of the breather pipe, an esophagus drainage channel is formed in the outer wall of the breather pipe, and the esophagus drainage channel is communicated with the esophagus drainage cavity. And the esophagus drainage channel is communicated with the esophagus drainage cavity. The ventilation cavity and the esophagus drainage cavity are formed in the ventilation pipe, and the glottis is closed through the laryngeal cuff; the esophagus of a patient is sealed through the esophagus cuff, esophagus drainage is conducted on the patient, and reflux and aspiration are prevented.

The invention provides a throat motion monitoring method based on stereoscopic perception and a hybrid coding Transform model. The method comprises the following steps: acquiring throat epidermis motion characteristics through a mechanical motion sensing unit; acquiring features of deep muscle groups of the throat through an electrical characteristic measuring unit; performing data preprocessing on the laryngeal epidermis motion features and the laryngeal deep muscle group features to obtain a data set; the data set is input into an HE-Transform model for feature analysis, and a classification result is obtained; the HE-Transform model is composed of an embedded layer, a Patch division layer, a position coding layer, a Transform layer and a linear layer which are connected in sequence. According to the method, all-directional tracking of the physiological activity of the throat is achieved through the three-dimensional perception technology from the epidermis to the deep layer, and global information and local features of signals are considered through a Transform frame with mixed codes.

The invention provides an intelligent control method for a tongue pressure feedback training instrument, and the method comprises the steps: collecting tongue pressure peak data of a patient, a laryngeal electromyographic signal value of the tongue pressure feedback training instrument and a swallowing sound spectrum feature in real time, constructing a biological signal fusion data set containing time sequence information, and obtaining a biological signal time sequence distribution feature of the tongue pressure feedback training instrument; through the time window with the abnormally reduced pressure change rate, associating the frequency domain characteristic change of the swallowing sound spectrum obtained based on swallowing sound spectrum characteristic analysis, and obtaining the frequency band distribution information of sound abnormity; according to the frequency band distribution information of the abnormal sound, adjusting parameters needed by self-adaptive feedback of the tongue pressure feedback training instrument are calculated, and the adjusting amplitude of opening and closing of the air escape valve is obtained through a preset mapping relation; and inputting the deviation between the tongue pressure peak value and the target tongue pressure value and the adjustment amplitude of opening and closing of the air escape valve to a machine learning algorithm, and outputting a triggering optimization time point for guiding the patient to apply the target tongue pressure to a telescopic air bag of the tongue pressure feedback training instrument.

The application discloses a kind of swallowing disorder rehabilitation auxiliary scheme generation method and system, belong to medical rehabilitation intelligent evaluation technical field, to solve the problem of swallowing training path optimization difference;The present application collects myoelectricity, tongue pressure, laryngeal image and acoustic signal in the process of swallowing by multi-channel sensing device, constructs unified multi-modal swallowing behavior feature vector, realizes obstacle stage recognition and function grade discrimination in combination with pre-training model and historical data, and outputs structured evaluation result;Based on the training action of high matching degree of knowledge graph matching, the personalized training path is generated by fusing muscle group matching degree, edge weight and function grade factor, and the intensity, frequency and rhythm parameters are set;Real-time monitoring action and myoelectricity deviation in training process, output prompt signal and record behavior completion degree;According to feedback, dynamically update rehabilitation progress graph, if deviation is out of limit, then automatically reconstruct path and synchronize doctor intervention, thereby improve rehabilitation efficiency and safety.

The invention relates to the technical field of image enhancement, in particular to a throat structure and detail high-resolution image enhancement method based on deep learning. The method comprises the following steps: acquiring a low-resolution image of a laryngeal endoscope and corresponding laryngeal three-dimensional image data; the method comprises the following steps: extracting features from a low-resolution image based on a ResNet model, extracting features from three-dimensional image data by using a 3D-ResNet model, constructing a time-varying weight matrix modulated by a sine period in the 3D-ResNet model, so that the physiological motion state of the throat can be perceived in real time in an image enhancement process, and fusing the extracted features by using a cross-scale feature pyramid technology; and a U-Net + + model combined with a sub-pixel convolutional layer is utilized to carry out super-resolution reconstruction on the image subjected to feature fusion processing. According to the design, by introducing an anatomical attention module and a dynamic receptive field adjustment technology, the characteristics of clinical key areas (such as vocal cord free edges and anterior joint areas) can be enhanced in a targeted manner.

The invention relates to the technical field of biological recognition, in particular to a multi-scene-oriented dynamic voiceprint recognition updating method, which comprises the following steps: synchronously acquiring voice signals through a 16-channel MEMS microphone array and a throat three-axis acceleration sensor, and constructing a three-dimensional data set containing acoustic scene fingerprints, semantic contexts and emotional characteristics; extracting features by adopting a scene adaptive dual-mode processing architecture, and extracting semantic features and emotional state coding vectors to form a multi-dimensional feature set; based on the multi-dimensional feature set, calculating a matching degree by using a Gaussian mixture model, monitoring a scene mutation index, and triggering an online clustering reconstruction mechanism to optimize a feature weight; deploying a three-level pipeline architecture for real-time processing; and generating a scene adaptation factor according to the MFCC-PLP mixed feature matrix and the environmental parameters to perform multi-feature joint matching. According to the invention, the adaptability of voiceprint recognition in a complex scene can be improved.

The invention relates to the technical field of health monitoring, in particular to an infant suffocation risk autonomous monitoring method and system based on laryngeal breathing sound, and the method comprises the steps: collecting airflow and breathing sound signals of the throat of an infant through a high-sensitivity MEMS microphone, and synchronously monitoring thoracic motion data of the infant through a miniature accelerometer; performing noise reduction processing on the airflow and the breathing sound signal to obtain a denoised breathing sound signal; performing signal separation on the denoised breathing sound signals according to a breathing event, and enhancing and combining the denoised breathing sound signals into a breathing sound data set; extracting breath sound features from the breath sound data set, constructing a suffocation anomaly classification model based on the breath sound features through a machine learning model, and establishing a dynamic baseline model adapted to individual breath differences according to the breath sound features; hardware devices of a high-sensitivity MEMS microphone and a micro accelerometer are combined with an artificial intelligence model, and infant asphyxia risk identification and early warning are autonomously completed in a home environment by using laryngeal respiration sound signals.

The utility model discloses a video laryngoscope which comprises a handle, an extending mechanism and a shooting mechanism, and a display mechanism is arranged at one end of the handle. The stretching-in mechanism is arranged at the other end of the handle and comprises an angle adjusting assembly and a telescopic assembly, the angle adjusting assembly is used for adjusting the angle of the stretching-in mechanism based on the handle, and the telescopic assembly is used for adjusting the length of the stretching-in mechanism; the shooting mechanism is installed at the end, away from the handle, of the stretching-in mechanism. By means of the mode, the angle and the length of a video laryngoscope examination part are adjusted, so that the device can cope with examinations of different throat depths and different positions of a patient, and the situation that the device is inserted into the throat of the patient at a single length and a fixed angle to injure the patient is avoided.

The application discloses a vocal cord leukoplakia pathological detection method and system based on a laryngeal endoscope image, a device and a medium, and belongs to the field of data management. The method is as follows: inputting the acquired laryngeal endoscope image into a preset pathological semantic field model, performing feature extraction on the laryngeal endoscope image through the pathological semantic field model to obtain a feature map; performing coordinate mapping on coordinate points of the feature map through the pathological semantic field model, generating a pathological semantic vector corresponding to each coordinate point, and constructing a continuous pathological semantic field according to the pathological semantic vector; deploying a perception particle swarm in the feature image domain, and performing particle iterative motion according to the pathological semantic vector of the deployment position until a lesion contour is generated by meeting a convergence condition, and outputting a vocal cord leukoplakia pathological detection result according to the lesion contour. Therefore, by implementing the application, accurate detection of vocal cord leukoplakia pathology can be realized, and the accuracy and reliability of laryngeal precancerous lesion diagnosis can be improved.

The utility model relates to the technical field of medical instruments, and discloses an oxygen inhalation tube fixing mechanism for trachea surgery, which comprises a main body component, a fixing component and a fixing component, the main body component comprises a throat inlet tube and an oxygen supply tube, the oxygen supply tube is arranged at one end of the throat inlet tube, one end of the throat inlet tube is inserted into the trachea of a patient, and the other end of the oxygen supply tube is connected with oxygen supply equipment; the device is arranged on one side of the throat inlet pipe and comprises a clamping piece, the clamping piece comprises a cross-under ring, and two attaching blades are fixed to one side of the cross-under ring. By arranging the fixing assembly and using clamping and threaded connection modes, pressure cannot be caused to a laryngeal fistulization opening of a patient, unnecessary damage to the neck of the patient due to pressing and inserting errors between the throat inlet pipe and the oxygen supply pipe is avoided, and pain and discomfort of the patient are relieved.

The invention belongs to the technical field of laryngoscopes, particularly relates to a visual laryngoscope for assisting medicine injection, and provides the following scheme for solving the problems in the prior art: the visual laryngoscope comprises a display screen, one end of the display screen is rotatably connected with a fixed shell through a damping rotating shaft, and the interior of the fixed shell is fixedly connected with a processor; the outer wall of one side of the fixing shell is fixedly connected with a switch, one side of the fixing shell is provided with a camera, the camera is connected with a processor through a wire, the outer side of the wire is coated with a protective soft sleeve, the other end of the protective soft sleeve is fixedly connected with an end shell, the camera is fixedly connected into the end shell, one side of the end shell is provided with a lens, and the lens is fixedly connected with the end shell. A fixing assembly is arranged on one side of the fixing shell. The camera extends into the arc-shaped guide shell to observe the throat and perform medicine injection, data can be recorded and analyzed by taking out the camera, the camera does not need to be taken out from the mouth of a patient frequently, and the comfort degree is improved.

This invention relates to the field of nursing technology for disabled individuals, and particularly to a method and device for identifying the risk of aspiration in disabled individuals. The method includes: establishing a multimodal, non-invasive data acquisition system to simultaneously collect temporal information on laryngeal vibration, respiratory status, and facial movements; preprocessing to extract effective signals; constructing an individual-specific physiological baseline model using historical normal physiological samples and binding it to the individual's identity; segmenting and processing real-time signals to construct a three-dimensional feature collaboration matrix, calculating mutual information entropy, and dynamically iterating the associated baseline; temporally aligning swallowing and respiratory abnormality anchor points, marking key intervals, and screening suspected risk events; and outputting the final aspiration risk identification result after environmental interference filtering, feature weight adaptation, and verification. This invention enables accurate, real-time identification and early warning of aspiration risk without requiring any wearable devices and without affecting the daily care and rest of disabled individuals.

The invention discloses a laryngeal anesthesia sprayer for the anesthesiology department, and belongs to the technical field of medical instruments, the laryngeal anesthesia sprayer comprises an anesthesia bottle, a top cover, a pressure piston, a piston rod and a pressing plate, a plurality of fixing parts are further installed on the side wall of the anesthesia bottle and located on the same longitudinal axis, and each fixing part comprises a fixing block and two fixing bags; a clamping groove is formed in the fixing block, two fixing bags are fixed to the two sides of the clamping groove respectively, when the spraying pipe is located in the clamping groove, the spraying pipe can be clamped and fixed through the fixing bags in the clamping groove, clamping and fixing of the spraying pipe are achieved through the two fixing bags, and due to the fact that the fixing bags make uniform contact with the spraying pipe, the situation that local pressure on the spraying pipe is too large is prevented; therefore, the situation that follow-up anesthetic liquid flows unsmoothly in the spray pipe is avoided, and the service life of the spray pipe is prolonged.

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 utility model relates to a device for fixing gauze in an oral cavity, which comprises two fixing clamps respectively clamped with first molars on two sides, the two fixing clamps are connected through a long-strip-shaped connecting rod, the connecting rod is positioned above a tongue, a connecting column is arranged at the midpoint of the connecting rod, and the connecting column is connected with the first molars. The side wall of the connecting column is provided with a first supporting rod extending towards the cheek side and two second supporting rods which obliquely extend towards the two sides of the throat and are symmetrically arranged, and the end of the first supporting rod and the end of the second supporting rod are each provided with a clamp used for clamping gauze. The utility model has the characteristics that the gauze can be fixedly supported, the gauze is separated from the throat and the tongue root of a patient, the direct contact between the gauze and the throat and the tongue root of the patient is avoided, the possibility that the patient feels nausea is reduced, the comfort of the patient is ensured, and the like.

The present invention provides an arytenoid cartilage activity regulating laryngeal pacemaker, comprising a recurrent laryngeal nerve synchronous signal acquisition electrode, a bioelectric signal acquisition system, a bioelectric signal conversion power system and an arytenoid cartilage driving system connected in sequence; the recurrent laryngeal nerve synchronous signal acquisition electrode is used to acquire the original neural electrical signal of the recurrent laryngeal nerve; the bioelectric signal acquisition system is used to process the original neural electrical signal; the bioelectric signal conversion power system is used to convert the processed neural electrical signal into power to drive the arytenoid cartilage driving system; the arytenoid cartilage driving system is used to move under the drive of the bioelectric signal conversion power system to drive the arytenoid cartilage to move. The arytenoid cartilage activity regulating laryngeal pacemaker provided by the present invention can convert kinetic energy with electrical signals to drive the associated arytenoid cartilage linkage muscle movement, thereby solving the voice, breathing and airway problems of patients with laryngeal muscle paralysis, and avoiding further stimulation of the laryngeal muscles to aggravate the degree of injury.

The present invention discloses a data processing method and system for multimodal facial motion point data and vocal cord motion data. The method includes providing text, collecting continuous facial images or videos and laryngeal vibration data of a normal person speaking, preprocessing the data, extracting temporal and spatial features, establishing a facial and neck motion model for Chinese pronunciation, and having a deaf-mute person imitate the pronunciation according to the model and obtain feedback. The system includes a depth camera, a laryngeal vibration sensor, and a microphone. By comprehensively utilizing multimodal data, it provides instant feedback to the deaf-mute, lowers the learning threshold, and improves communication efficiency. It is applicable to deaf-mute groups worldwide. This invention promotes speech vocalization training and has broad application prospects and social significance.

The utility model belongs to the technical field of medical devices, and specifically relates to a laryngoscope with an anatomical structure recognition function. The utility model includes an insertion component, a handle fixedly connected to the insertion component, a display component rotatably connected to the handle through a connector, and an image acquisition unit installed at the end of the insertion component; the display component includes a display shell, a screen installed on the display shell, an intelligent module arranged inside the display shell, and an uninterruptible power supply for powering the intelligent unit; wherein the intelligent module is used to calculate and recognize the image data of the laryngeal anatomical structure collected by the image acquisition unit, and map the recognition results and the image data on the screen. When in use, the position information of the anatomical structure will be displayed on the screen in real time to assist the physician in intubation, improve the success rate of intubation in one time, and solve the problem in the prior art that tracheal intubation is too dependent on the physician and is easy to cause damage to the patient's oral cavity.

The utility model relates to the technical field of oropharyngeal airway, in particular to an anti-blocking oropharyngeal airway. The utility model provides an anti-blocking oropharynx airway which comprises two supporting plates for supporting an oral cavity and a throat, a connecting plate vertically connected with the supporting plates is arranged between the supporting plates, and channels for air circulation are formed between the two sides of the connecting plate and the supporting plates; according to the oropharyngeal airway, the supporting plate and the connecting plate are designed, so that an open groove-shaped channel for air circulation can be formed through connection between the supporting plate and the connecting plate, and the problems that an oropharyngeal airway in the prior art is of an oval hollow plastic pipe structure and is often blocked by sputum in the throat in the using process, and the sputum in the throat is easily blocked are solved. Therefore, the ventilation effect is lost, and the use risk is high.

The embodiment of the invention discloses a laryngeal electromyographic signal interpretation method and system based on self-supervision joint coding prediction, a medium and equipment. The method comprises the steps that a laryngeal electromyographic signal data set and a corresponding instruction label are acquired; decomposing the signal into low-frequency and high-frequency components through wavelet transform; randomly generating a mask component for masking to obtain a visible group and a mask group; respectively extracting visible component features, target signal component features and mask vector features; performing joint coding on the mask vector feature and the visible component feature to obtain a target signal component prediction feature, and performing joint coding on the target signal component feature and the visible component feature to obtain a mask vector prediction feature; training a signal encoder based on the predicted and real features; combining the trained signal encoder with a classification module to construct an interpretation model and performing fine tuning training; the to-be-interpreted electromyographic signals are input into the fine-tuned signal interpretation model, a classification result is output, efficient feature learning is achieved through self-supervised joint coding prediction, and the generalization ability of the model is improved.

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.

A self-expanding implant for use as a vascular flow reducer is disclosed having a variable mesh angle to limit the amount of diameter variation of certain portions of the implant, such as an hourglass-shaped laryngeal section or central laryngeal inner diameter. Methods of making such implants are also described.

The present invention discloses a laryngeal mask, comprising a tube body and a mask body, wherein the tube body is provided with a breathing cavity for circulation of breathing gas and a digestive cavity for circulation of waste liquid generated during implantation ventilation, the tube body has a tube connection end, the mask body is provided with a mask connection end, the mask connection end is sealedly connected to the tube connection end, the mask body is provided with a breathing chamber for communicating with the respiratory tract and a digestive chamber for communicating with the digestive tract, the breathing chamber is communicated with the breathing cavity, and the digestive chamber is communicated with the digestive cavity; a thinning portion is provided at the connection between the mask connection end and the tube connection end, and the wall thickness of the thinning portion is less than the wall thickness of the tube body and the rest of the mask body. The technical solution of the present invention can solve the problem that after the laryngeal mask is implanted in the patient's larynx, it is easy to deform as the patient's head twists, thereby affecting the ventilation after the laryngeal mask is implanted.

The invention aims to provide a cerebral apoplexy swallowing assessment and extubation decision-making system based on ultrasound and video stream fusion, and the system comprises an ultrasound image collection module which focuses on the dynamic movement of tongue muscles, throat muscles, tongue bones and throat lacuna; the video stream acquisition module is used for calculating facial expression, oral activity and throat form change characteristics by using a motion tracking algorithm; the analysis module is used for analyzing spatial characteristics of muscle movement; identifying time sequence characteristics of the swallowing action; the evaluation and decision module is used for generating a swallowing function evaluation report; and the user interface and report output module is used for outputting an automatically generated swallowing function evaluation report to a clinician. The swallowing function can be evaluated in real time, noninvasively and accurately through a multi-modal data fusion technology in combination with a deep learning algorithm, a more reliable swallowing function evaluation basis is provided for clinicians, and rehabilitation treatment and intervention of stroke patients are helped.

The utility model relates to the technical field of laryngoscopes, in particular to an angle-adjustable self-retaining laryngoscope which comprises a laryngoscope tube, silica gel strips are adhered to the top and the rear side of the laryngoscope tube, an elastic steel bar is fixedly connected to an inner cavity of each silica gel strip, and the left side of a mounting vertical plate at the top is connected with a miniature camera and provided with a mounting hole through bolts. When the adjusting screw is rotated anticlockwise, the adjusting screw moves leftwards, the connecting transverse plate on the surface of the adjusting screw moves leftwards, the traction ropes on the two sides move leftwards, the left side of the laryngoscope tube bends upwards under the action of the elastic steel bar, when the adjusting screw is rotated clockwise, the traction ropes are tensioned rightwards, and the left side of the laryngoscope tube bends downwards. Similarly, the left side of the laryngoscope tube can be bent forwards or backwards by rotating the adjusting screw rod on the rear side according to the operation, so that the laryngoscope tube can be bent and adjusted up and down and back and forth, the throat of a patient can be supported conveniently, and medical staff can watch the laryngoscope conveniently.

The invention relates to the field of medical instruments, in particular to a tracheostomy cannula fixing dressing, a dressing body of the tracheostomy cannula fixing dressing is provided with a first surface used for being attached to the skin, a second surface opposite to the first surface, and a through hole used for a tracheal cannula to penetrate through; the fixing mechanisms are arranged on the two sides of the through hole in pairs and used for applying pulling force to a fixing base of the tracheal cannula so as to fix the fixing base to the second surface. The reinforcing rib is arranged on the dressing body, at least part of the reinforcing rib extends in the direction forming an included angle with the pulling force direction, and the projections of the reinforcing rib and the fixing mechanism on the surface of the dressing body intersect, so that the pulling force borne by the fixing mechanism is dispersed to the reinforcing rib and then dispersed to different areas of the tracheostomy cannula fixing dressing through the reinforcing rib. According to the tracheostomy tube fixing dressing, the local stress concentration condition when the tracheostomy tube fixing dressing fixes a tracheal tube fixing seat is relieved, the deformation degree of the tracheostomy tube fixing dressing when the tracheostomy tube fixing dressing is attached to the laryngeal skin of a patient is reduced, the mounting stability of the fixing seat is guaranteed, and a guarantee is provided for mounting of an artificial airway.