828 results about "Occlusion" patented technology

The invention discloses a data processing method and system for a dental three-dimensional model, and relates to the technical field of dental three-dimensional modeling, and the method comprises the steps: obtaining initial data of oral cavity scanning, recognizing a tooth type in the initial data, and determining a corresponding tooth surface reflection parameter according to the tooth type; generating scanning parameter combinations for different tooth positions according to the tooth surface reflection parameters and the tooth anatomical structure; tooth point cloud data are collected, and a tooth enamel reflective area and a shadow shielding area are identified; performing light reflection removal processing on the enamel light reflection area, performing data completion on the shadow shielding area, and generating corrected tooth point cloud data; and performing registration fusion on the corrected tooth point cloud data to generate a dental three-dimensional model containing a complete dentition. According to the method, the problem of data missing caused by enamel light reflection and adjacent tooth shielding is solved through a differential scanning strategy and regional data processing aiming at specific optical characteristics of teeth, and automatic construction of a high-quality dental three-dimensional model is realized.

The invention discloses a digital dental implant bridge and false tooth and false tooth automatic adaptation and production system based on CBCT (cone beam computed tomography) and oral scanning data and a control method thereof, which are used for realizing automatic design, adaptation and production of a dental implant bridge and false teeth and false teeth and fusing the CBCT data and the oral scanning data to generate a three-dimensional oral cavity digital model. An automatic modeling technology based on deep learning is used for analyzing the occlusion relation, the adjacent tooth form and the implant angle of a patient, and an implant tooth bridge and false teeth are automatically designed to obtain a three-dimensional model of the prosthesis. A computer vision technology or a three-dimensional scanning technology is adopted to detect the consistency of the size and shape of a produced finished product and the three-dimensional model; and digital try-on is performed through an augmented reality (AR) technology, so that rapid adjustment of various parameters of the product is realized.

The invention relates to the technical field of digital data processing, in particular to a finite element analysis method and system for a full-mouth edentulous movable denture, and the method comprises the steps: obtaining a CT image of the oral cavity of a patient, constructing a three-dimensional finite element model through a finite element analysis method, and carrying out the grid division of the three-dimensional finite element model, obtaining a unit size and a maximum deviation coefficient of each grid, and a pressure trend vector of each grid in each dynamic occlusion process; determining the shape complex weight of each grid; determining a pressure difference degree, a stress sensitivity degree, a stress dispersion degree and a structure disorder characteristic value of each grid; obtaining each defect grid; calculating the number of expanded neighborhood layers of each defect grid; and refining the grids, and optimizing the false tooth according to a simulation result of occlusion simulation of the three-dimensional finite element model. According to the method, local stress changes can be accurately captured, the accuracy of finite element analysis on false tooth stress analysis is improved, and the pain feeling of a patient during occlusion is reduced.

The invention relates to the technical field of orthodontics, and discloses a processing system and a processing method for a bracket-free invisible orthodontic tooth socket, and the processing system comprises a data collection and integration module which is used for collecting and integrating multi-source data, comprising collection approaches and specific operation processes of oral three-dimensional scanning data, basic information of a patient, clinical examination records, correction scheme records and correction result evaluation; the data standardization and cleaning module is used for carrying out format unification and cleaning on the collected data; and the feature extraction and labeling module is used for extracting tooth form and tooth space relation features from the oral cavity three-dimensional scanning data and labeling the malocclusion and occlusion relation in the oral cavity. The invisible orthodontic tooth socket is manufactured by collecting a large amount of multi-dimensional data including oral three-dimensional scanning data, patient clinical information, orthodontic process records, result evaluation and the like, and the moving path of each tooth in each orthodontic stage and the magnitude and direction of required orthodontic force are accurately predicted.

The invention discloses an intelligent analysis method and system of an oral cavity image, relates to the technical field of image processing, and aims to calculate a tooth deviation index YPZ through intelligent processing and analysis of the oral cavity image and accurately reflect the overall deviation degree of tooth arrangement and occlusion relationship. Through comparison with a preset clinical statistical deviation threshold LZ, an oral suggestion evaluation scheme can be generated, the deviation index and the deviation threshold are iteratively optimized according to feedback information of a patient, in the traditional orthodontic process, a doctor depends on experience and manual judgment, subjective errors may exist, and the adjustment process is lack of a real-time feedback mechanism, so that the accuracy of orthodontic treatment is poor. The lagging of the treatment effect is caused. Through a feedback and adjustment mechanism of the tooth deviation index YPZ and the clinical statistical deviation threshold LZ, dynamic evaluation of the oral health condition and real-time optimization of the treatment scheme are realized by using a back propagation algorithm, and the accuracy and efficiency of the treatment effect are greatly improved.

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

The invention discloses a high-precision and automatic dental crown generation method. The method comprises seven steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection, and dental crown generation and multi-dimensional refinement. The method comprises the steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection and dental crown generation. Through combination of deep learning and a point cloud algorithm, high-precision segmentation of teeth and gingiva and precise reduction of an occlusion relationship are realized, an oral anatomical feature library and a clinical repair standard are fused, and through multi-dimensional fine adjustment optimization, a dental crown 3D model which is high in fitting degree, harmonious in occlusion and capable of meeting clinical requirements is generated. The method is full-process automatic, greatly improves efficiency, reduces operation threshold, reduces material waste and diagnosis and treatment cost, remarkably improves repair success rate, and is suitable for various oral repair scenes.

The invention relates to rehabilitation equipment capable of intelligently simulating swallowing actions, and belongs to the technical field of medical instruments. Comprising a main body frame which is fixed on the head of a patient through a cranial top limiting claw sleeve, a cranial side face clamping piece and a side face clamping plate. An oral cavity upper and lower jaw occlusion training module, a tongue stretching and curling guide training module and a throat action simulation sub-module are arranged to cooperatively simulate the whole swallowing process. And the central processing unit is provided with various sensors, such as surface myoelectricity, pressure, flow and acceleration sensors, acquires multi-dimensional data and transmits the multi-dimensional data to the central control board. The central processing unit analyzes data in combination with a database so as to regulate and control action parameters of all the modules, and personalized rehabilitation training is achieved. The man-machine interaction module provides operation and feedback, and the data storage and transmission module guarantees data management and sharing. The equipment can be accurately simulated and intelligently regulated and controlled, and the swallowing rehabilitation effect and the life quality of a patient are effectively improved.

The invention discloses a local removable movable denture design method based on a large model, which comprises the following steps: S1, collecting diversified oral cavity scanning data, and constructing a standard model covering different tooth arrangements, occlusion relationships and jaw structures; s2, scanning oral cavity model data of a target object to generate a 3D digital model; s3, comparing the generated 3D digital model with a standard model, and identifying and marking tooth restoration elements; and S4, determining a design scheme of the locally removable removable denture according to the marked tooth restoration elements. The method provided by the invention solves the challenges faced by current grassroots physicians and medical students in denture design, and has wide application prospects and social benefits.

An occlusion device with particular utility in occlusion of left atrial appendages is described. The occlusion device embodiments utilize an inflatable balloon or expandable element used to occlude the treatment site.

The utility model discloses an occlusion type expansion sleeve which comprises a cylindrical sleeve body formed by rolling a plate body, the upper portion of the sleeve body is provided with a long-strip-shaped notch penetrating through the top of the sleeve body, and the upper portion of the sleeve body is divided into a plurality of expansion parts through the long-strip-shaped notch. When the sleeve body is unfolded into a plate body, a first meshing tooth part and a second meshing tooth part are arranged on the two sides of the lower portion of the sleeve body respectively. When the plate body is rolled into the sleeve body, the first meshing tooth part and the second meshing tooth part are meshed and clamped; and barbs and stamping grooves are arranged on the sleeve body. By arranging the first meshing tooth part and the second meshing tooth part, the structural strength of the splicing position of the sleeve body can be improved, and the cracking risk of the splicing position of the sleeve body is reduced; by arranging the barbs, the friction force between the sleeve body and the mounting hole can be increased, the sleeve body is prevented from idling, meanwhile, the barbs can prevent the sleeve body from being separated from the mounting hole, and the fixing effect of the sleeve body is improved; and by forming the stamping groove, the structural strength of the expansion part can be improved, and the structural strength of the sleeve body can be improved.

The invention relates to the technical field of three-dimensional analysis, in particular to an oral cavity three-dimensional motion analysis system based on dynamic occlusion scanning. The system comprises an oral cavity occlusion feature extraction module, a dynamic occlusion reconstruction module, an occlusion track smoothing module and an oral cavity motion abnormity identification module, and a multi-view structured light scanner can be used for carrying out image scanning on the oral cavity in the dynamic occlusion process so as to obtain a multi-frame original occlusion image sequence; occlusal feature extraction and three-dimensional occlusal reconstruction are carried out on the multiple frames of original occlusal image sequences to construct corresponding three-dimensional occlusal model sequences; a dynamic occlusion trajectory prediction model is constructed based on the three-dimensional occlusion model sequence, oral cavity three-dimensional motion analysis and occlusion trajectory smoothing filtering processing are carried out, and a smooth three-dimensional occlusion motion trajectory is generated; and performing oral cavity motion abnormity identification according to the smooth three-dimensional occlusion motion track so as to generate an oral cavity occlusion three-dimensional motion abnormity identification result. According to the invention, accurate capture and analysis of three-dimensional motion of the oral cavity can be realized.

The invention provides a silica gel occlusion induction unit with personalized tooth socket design, which is obtained according to the following method: obtaining initial mixed dentition and dental arch data of a patient through oral scanning and importing the data into digital software; calculating according to the initial mixed dentition dental arch data of the patient to obtain a constant dentition target dental arch after the treatment of the patient is finished; overlapping and integrating the initial dental arch of the patient and the target dental arch after treatment; according to the integrated digital model, designing tooth space morphological parameters of the personalized occlusion induction unit; determining a theoretical model of the occlusion induction unit according to the obtained tooth space morphological parameters; according to the obtained theoretical model of the occlusal induction unit, the solid occlusal induction unit is prepared, and the wearing comfort and the treatment effect can be both considered.

The invention relates to an occlusion guide plate designing and manufacturing method based on dentition mechanical analysis, which comprises the following steps: S1, acquiring oral cavity image data of a patient, and constructing a three-dimensional digital model comprising a dental crown, a tooth root and an alveolar bone structure; s2, calculating an overall mechanical reference point of a tooth root structure of an anterior maxillary tooth area; s3, acquiring an incisal edge midpoint of each incisal tooth and a cusp point of each canine tooth in the maxillary anterior tooth area, solving a geometric center, and connecting the geometric center with an overall mechanical reference point to form a dentition direction vector; s4, calculating the displacement relationship between the target dentition arrangement and the initial dentition arrangement in the lip-tongue direction; s5, calculating an included angle between the occlusal force direction of the maxillary anterior tooth area and the dentition direction vector; s6, determining key morphological parameters of the occlusion guide plate according to the calculation result of the included angle in S5; and S7, manufacturing the occlusion guide plate. Compared with the prior art, the method has the advantages of precise mechanical adaptation, quantitative treatment prediction, personalized design and the like.

The utility model provides a positioning device for tower drum connection, which comprises an upper connecting piece and a lower connecting piece, and the upper connecting piece and the lower connecting piece are connected in a clamping way; the lower connecting piece comprises a lower shell sleeve and a pin structure arranged in the lower shell sleeve, the upper portion of the pin structure is an arc-shaped connector, and an annular groove is formed in the middle of the arc-shaped connector. The upper connecting piece comprises an upper shell sleeve, a plurality of circumferentially distributed hook teeth are arranged on the end face of the upper shell sleeve, and the hook teeth are matched with the annular groove; the upper shell is embedded in the through hole of the upper section of tower drum in a sleeved mode, the lower shell is embedded in the lower section of tower drum in a sleeved mode, the upper connecting piece and the lower connecting piece are self-locked through meshing of the hook teeth and the annular grooves, and the upper section of tower drum and the lower section of tower drum are positioned. The steel cone has good mechanical strength and stability, the positioning and connecting efficiency of the tower drum can be effectively improved in the actual construction process, and the problem that a connector is difficult to connect due to errors when the steel cone is used is solved.

The invention discloses a tooth arrangement system based on an occlusal separation angle. The tooth arrangement system comprises a registration program module, a left and right condylar process central point setting program module, an occlusal plane adjusting program module, an angle calculation program module, an opening and closing mouth movement program module, an automatic tooth arrangement program module, a dental arch line adjusting program module and a tooth movement program module, according to the tooth arrangement method based on the condylar axis occlusal separation angle, the ideal occlusal separation angle serves as the target to calculate the appropriate occlusal plane angle, the angle of the mandibular plane angle reaches the normal range, a doctor is assisted in formulating a better correction scheme, and the tooth arrangement accuracy is improved. The correction result is more stable, and the tooth occlusion function reaches the optimal state.

The present invention pertains to the technical field of materials. Disclosed are a polymer composite hydrogel and a preparation method therefor, and a tooth desensitization material. The polymer composite hydrogel consists of a GelMA hydrogel and BP nanosheets composited inside the GelMA hydrogel, wherein the GelMA hydrogel is prepared by crosslinking gelatin methacryloyl via double bonds under the action of a photoinitiator. Under the photothermal effect, the polymer composite hydrogel of the present invention can enhance the resistance of dentin to external stimuli and promote the formation of stable and effective occlusion of dentinal tubules. Moreover, the occlusion effect on the dentinal tubules exhibits acid resistance, corrosion resistance, and stability, preventing the possibility of short-term reopening of the occluded dentinal tubules. This is of great significance for the treatment of occluded dentin hypersensitivity (DH).

The invention provides a complete denture manufacturing method for determining a plane and jaw position relation based on digitization, and relates to the technical field of dentistry, the method comprises the following steps: using a finished product tray to prepare an initial impression, filling a plaster model, and scanning to obtain a three-dimensional data STL file of the plaster model of the upper and lower jaws; recording the occlusion relationship by using oil sludge silicone rubber, and scanning to obtain a three-dimensional data STL file of the upper and lower jaw plaster model with the occlusion record silicone rubber; obtaining a CBCT DICOM file when the patient wears and occludes the silicone rubber, and extracting a three-dimensional data STL file of the face, the maxilla and the mandible; fitting the archive to construct a virtual patient; and digitally designing a plane and a median relation jaw position, and the like. According to the method, the upper and lower jawbones are segmented by using CBCT DICOM data, the position of the lower jawbone is moved by using software, the jaw position is accurately designed, and the false tooth is manufactured on the basis of a correct plane and a correct median relationship, so that temporomandibular joint health and false tooth stability of a patient are facilitated.

The invention provides a orthognathic digital virtual occlusion pairing method, which comprises the following steps: acquiring an oral cavity three-dimensional digital model of a patient, the oral cavity three-dimensional digital model comprising a jaw bone and a dentition; segmenting a jaw bone in the oral cavity three-dimensional digital model to form a segmented model; calibrating reference position information on the segmentation model, and determining an adjustment rule; and splicing the segmented jaw bones in the segmentation model until the adjustment rule is met.

The invention discloses an oral function rehabilitation training analysis system and method after oral maxillofacial surgery, and the system carries out the real-time collection and intelligent evaluation of the rehabilitation training process data of a patient through a closed occlusion training evaluation module, an opening degree training evaluation module, a pronunciation training evaluation module, and a swallowing training evaluation module. The training effect of the patient is fed back in real time through the evaluation result, quantification of the rehabilitation effect is achieved, a scientific basis is provided for a rehabilitation plan made by medical staff, the occlusal force, lip closing force and pronunciation rehabilitation rate of the patient is effectively improved, and the life quality of the patient is remarkably improved.

The invention relates to the technical field of medical data processing, and comprises a big data driven oral treatment planning system, which comprises a tooth form data acquisition module, a microcrack identification module, an occlusion stress data processing module, a restoration form optimization module and a customized treatment recommendation module. According to the method, the reliability of micro-crack identification is improved by acquiring the tooth surface morphology point cloud data, accurately depicting micro details of the tooth surface morphology and screening areas with violent curvature change and continuous space, the areas with large local stress are identified by analyzing the stress conditions of tooth tip staggered contact points in different occlusion states, and the accuracy of micro-crack identification is improved. The contact point form of the local abnormal stress area is adjusted, the long-term stability of the restoration is optimized, the adaptability of a restoration material and tooth tissue under different stress conditions is analyzed, whether the restoration form meets the long-term stress balance requirement or not is comprehensively judged, and the long-term stability and occlusion adaptability of the restoration are ensured.

The invention provides a joint control switching assembly and a tracheal catheter, and relates to the technical field of medical instruments.The joint control switching assembly is used for a catheter body of the tracheal catheter, the catheter body is provided with a far-end opening, a near-end opening and a side opening, the side opening is close to the far-end opening, and the joint control switching assembly comprises a plugging piece and a driving piece; the plugging piece is movably arranged on the tube body and is used for plugging the side opening or the far-end opening, so that one of the side opening and the far-end opening is in an open state, and the other one is in a closed state; the driving piece is installed on the tube body and used for driving the plugging piece to move on the tube body so as to switch the opening and closing states of the side opening or the far-end opening. Compared with the prior art, the tracheal catheter has the advantage that the operation steps are simplified when the tracheal catheter is blocked and controlled.

The invention provides a construction method of a zipper horizontal pulling strength determination model and related equipment, and the method comprises the steps: constructing a first expression of the zipper horizontal pulling strength according to the friction force and the shear bearing force of the zipper horizontal pulling strength decomposition on the contact surface of a tooth head and a tooth groove, the shear bearing capacity is obtained according to the effective contact width of the tooth head, the effective occlusion depth of the tooth socket and the shear strength expression of the zipper material; based on the stress balance condition, a second expression of the horizontal pulling strength of the zipper is constructed according to the dip angle of the tooth head, the friction force and the normal force corresponding to the friction force; the first expression and the second expression are combined to construct a zipper horizontal pulling strength determination model, the zipper horizontal pulling strength determination model suitable for different materials and different tooth head structures is constructed, and the efficiency of horizontal pulling strength prediction and zipper optimization design is improved.

Provided in one aspect of the present application is a dental instrument, comprising: a U-shaped base support, in the upper and lower sides of which a U-shaped first groove and a U-shaped second groove are respectively formed; an upper occlusion module, which is a U-shaped elongated body fixed to the first groove, and one side of which away from the bottom of the first groove is recessed inwards to form a cavity that receives a patient's maxillary dentition and has a geometric shape customized based on the patient's maxillary dentition; and a lower occlusion module, which is a U-shaped elongated body fixed to the second groove, and one side of which away from the bottom of the second groove is recessed inwards to form a cavity that receives the patient's mandibular dentition and has a geometric shape customized based on the patient's mandibular dentition.

The invention provides a computer-implemented method for determining the occlusion relationship of three-dimensional digital models of maxillary and mandibular dentitions based on tooth photos, which comprises the following steps: acquiring a first photo of teeth of a patient in an occlusion state, the first photo comprising a plurality of maxillary teeth and a plurality of mandibular teeth; obtaining a first three-dimensional digital model and a second three-dimensional digital model respectively representing the upper jaw dentition and the lower jaw dentition of the patient; rendering the first three-dimensional digital model and the second three-dimensional digital model to obtain a first rendering graph; predicting an optical flow between the first photo and the first rendering graph by using a trained optical flow neural network based on the first photo and the first rendering graph; and based on the optical flow, calculating a first spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph, with a solution to solve the PnP problem, and calculating a second spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph.

Embodiments herein are directed to an occlusion device that includes a body, a pair of lobes, and an adjustment assembly. One of the pair of lobes positioned at a distal portion of the body and the other one is positioned at a proximal portion. The body includes an adjustment assembly positioned between the distal and the proximal portions to change a distance between the pair of lobes. The adjustment assembly includes a receiving member and an elongated member. The elongated member is configured to move the body between an extended position and a retracted position, such that in the retracted position, the elongated member is received within an inner diameter of the receiving member. In the extended position, the elongated member is extended away from a first end of the receiving member such that the distance between the pair of lobes is increased.

A medical device for removing a material from a hollow anatomical structure is provided. The device may include a shaft member. The device may include an expandable centering element near the distal end of the device. The device may include a macerator element either attached to the shaft or independent and freely moveable from the shaft. Alternatively, the device may include a rotating wire attached to the macerator element. The device may include an aspiration lumen in for removal of material. The device may include a drive shaft attached to a motor and used to rotate the macerator element. The device may be used in combination with a distal occlusion element, which may be either a radially expandable filter or balloon member.

Left atrial occlusion devices and methods of occluding a left atrial appendage. The left atrial occlusion devices can be carried by a flexible elongate member, have an inflatable member, and have a plurality of flexible elongate implant members forming a distally open cage configuration when expanded. The implant members have a flexible format to allow them to conform to the anatomy of the left atrial appendage. The distal ends of the flexible elongate member can optionally be atraumatic.

The invention discloses a complete denture generation method, device and equipment and a storage medium. The complete denture generation method comprises the following steps: acquiring a plurality of tooth feature points; determining a target false tooth model closest to the current patient in a false tooth model library; and determining an upper and lower jaw anterior tooth occlusion relationship of the target false tooth model. Determining the occlusal relationship between upper and lower jaw posterior teeth of the target false tooth model; determining an upper jaw tooth arrangement termination line and a lower jaw tooth arrangement termination line of the target false tooth model; and based on the adjustment information, finely adjusting the occlusion relationship between the upper and lower jaw anterior teeth, the occlusion relationship between the upper and lower jaw posterior teeth, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line, and determining the final complete denture. Therefore, a target denture model closest to the anterior tooth arrangement information of the current patient is determined in a denture model library, and the target denture model is further adjusted based on the anterior tooth occlusion relation between the upper jaw and the lower jaw, the posterior tooth occlusion relation, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line of the current target denture model, so that a final complete denture is obtained.

The invention relates to the technical field of medical examination, and discloses a guiding device for a bronchoscope, which comprises two symmetrically arranged tooth sockets, a length-adjustable connecting rod connected to the close sides of the two tooth sockets, a separation blade rotatably connected to the inner side of the lower tooth socket, and a linkage rod arranged between the separation blade and the upper tooth socket, the angle of the separation blade is adjusted in real time through the linkage rod in the process of adjusting the distance between the two tooth sockets; a guide cylinder for the bronchoscope assembly to penetrate through is connected to the center of the upper surface of the separation blade, one end of the guide cylinder is hinged to the upper surface of the separation blade, and the other end of the guide cylinder is in sliding connection with the upper surface of the separation blade so as to adapt to movement of the bronchoscope assembly in the airway; a clamping piece for clamping a bronchoscope assembly is arranged at the center of an inner cavity of the guide cylinder, the clamping piece can clamp bronchoscope sets of different sizes, the oral cavity of a patient can be supported through the two symmetrically-arranged tooth sockets, occlusion of the bronchoscope assembly between the upper jaw and the lower jaw of the patient is avoided, and the bronchoscope assembly can be conveniently and rapidly supported. Meanwhile, the blocking piece can block the tongue of the patient, so that the airway of the patient is better exposed at the opening of the guide cylinder, and the whole bronchoscope assembly can be conveniently inserted.