53 results about "Nasal endoscope" patented technology

A method for constructing a clinically-relevant large animal model of traumatic optic neuropathy, employing a goat with orbital anatomy and optic nerve structure similar to humans as a model animal, overing the defects existing in other animals as TON model animals. The target model goat is obtained by screening parameters, such as a maximum transverse diameter of a coronal plane of a body of sphenoid bone and a wall width of a sphenoid bone, thereby facilitating the exposure of an optic nerve in a optic-canal segment under a nasal endoscopic surgery and quantitative injury. With the optic nerve injury animal model, the clinical TON pathogenesis can be explored by studying the optic nerve at the injured optic canal. In the prepared TON animal model, the injured optic nerve is closer to the brain, which is beneficial to rebuilding the synaptic connection.

The invention provides a nasal endoscope with a nasal mucosa protection function, which comprises a guide rod, one end of the guide rod is provided with a camera, the other end of the guide rod is in communication connection with a display screen through a wire, and the end part of the guide rod is fixedly provided with a light supplementing lamp on the outer side of the camera; and the protective sleeve is movably arranged outside the guide rod in a sleeving manner. When a nasal cavity of a patient is subjected to endoscopic examination, the head of the patient is clamped and positioned through the two square air bags, the annular air bag is expanded to abut against the interiors of the nostrils of the patient, and therefore the protective sleeve can be limited, the guide rod limiting effect is achieved, and the situation that a gap exists between the guide rod and the nasal cavity is effectively avoided; the situations that a patient feels uncomfortable and the head of the patient shakes when a nasal cavity of the patient is subjected to endoscopic examination are effectively avoided, so that the situation of friction between the end of the guide rod and the nasal mucosa in the nasal cavity of the patient is effectively reduced, the situation of damage to the nasal mucosa in the nasal cavity of the patient is reduced, and the effect of protecting the nasal mucosa is achieved.

The invention relates to a minimally invasive implantable frontal lobe brain-computer interface method and device, and the method comprises the steps: constructing an individualized brain three-dimensional model according to CT and MRI image data of a patient, presetting an optimal nasal implantation path, and carrying out the implantation of the patient through a nose under the dual guidance of a nasal endoscope and a three-dimensional navigation system, constructing a skull base passage through minimally invasive trimming of a nasal cavity / paranasal sinus structure, and performing real-time matching and overlapping on an endoscope view and the three-dimensional model by using a rigid body transformation algorithm to display the position of a surgical instrument; windowing at a preset target point, implanting the flexible electrode array into a target brain region according to a planned depth and angle through a controllable propulsion mechanism, and establishing a neural signal acquisition or stimulation interface; intelligent mode recognition is carried out on the collected neural signals, the intention or brain state of the user is decoded, and corresponding neural stimulation or feedback signals are generated. According to the method, accurate, safe and minimally invasive clinical intervention is realized through a full-chain technical scheme of individualized planning, real-time navigation, minimally invasive implantation and biological integration, and the application value of a brain-computer interface technology is remarkably improved.

The invention relates to an ear-nose endoscopic examination and imaging system provided with a Wood lamp and a working method of the ear-nose endoscopic examination and imaging system. The ear-nose endoscopic examination and imaging system comprises a light source device and an operation and lens device, the light source device comprises a reflective concave mirror, a xenon lamp, a first dimming lens, a second dimming lens, a rotary glass aperture, a rotary nickel hydride filter aperture and a light guide cable; the reflective concave mirror, the xenon lamp, the rotary glass aperture, the first dimming lens, the rotary nickel hydride filter aperture and the second dimming lens are arranged in sequence; the second dimming lens is arranged opposite to one end part of the light guide cable; the operation and lens device is connected with the light source device through a light guide cable. Compared with the prior art, the wood lamp and the ear-nose endoscope are combined, and the defect that the treatment effect cannot be accurately evaluated due to ear-nose fungal infection and specific bacterial infection is effectively overcome.

Disclosed herein a neurosurgical simulator for training of various tasks involved in Endoscopic Endonasal Transsphenoidal Surgery, composed of a human head model comprising an anterior portion including a nose part, and a posterior portion detachably mounted on an inclined base part; a plurality of apertures on the nose part for insertion of an endoscope and an instrument for manipulation; said inclined base part placed at an inclination to mimic a patient position during endo-nasal surgery; wherein said base part comprises a protruded platform having slots to create male-female connection with corresponding a plurality of protrusions provided under one or more activity plates; wherein said activity plates are so designed to train various tasks including pick-place, drilling, incising, punching / grasping and precision movements around the anatomical structures. The simulator further comprises sensors including touch sensors, force sensors and accelerometers configured to track the performance of the user and provide feedback. The simulator further comprises a pair of articulated arms with encoders at each joint of said arm connected to the endoscope and the instrument for tracking the kinematic data of the user.

The present invention discloses a method, system, and medium for automatic robot path generation. The method comprises: collecting a sequence of nasal endoscope images to be input; performing feature analysis on the nasal endoscope images using a nasal endoscope image feature extraction model to obtain features of the nasal endoscope image sequence, wherein the nasal endoscope image feature extraction model is trained using a natural image dataset; inputting the extracted nasal endoscope image sequence features into a nasal endoscope pose estimation model to estimate the pose matrix of the nasal endoscope, wherein the nasal endoscope pose estimation model is trained using multiple sets of image pose matrices; and combining the nasal endoscope pose matrices in a time series to obtain the robot's motion trajectory. The present invention can achieve real-time and accurate automatic path generation for the robot based on the image sequence.

The invention provides a traditional Chinese medicine preparation for treating or improving chronic rhinitis, and relates to the field of traditional Chinese medicine pharmacy, and the traditional Chinese medicine preparation comprises patrinia, herba siegesbeckiae, Japanese metaplexis pericarp, oroxylum indicum, adenophora stricta, radix ophiopogonis, radix polygonati officinalis, rhizoma sparganii, fructus kochiae, schizonepeta, cortex dictamni, cortex lycii radicis and salvia chinensis. The traditional Chinese medicine preparation can effectively inhibit LPS-induced excessive inflammatory response of HNEpC, also can significantly reduce VAS score, SNOT-20 score and nasal endoscopic Lund-Kenne score of chronic rhinitis patients, effectively relieves core symptoms such as nasal obstruction, running nose and hypoolfaction, relieves negative effects of diseases on sleep, emotion and daily activities of the patients, relieves nasal mucosa edema, reduces abnormal secretions, and has a good treatment effect on chronic rhinitis. The repair of damaged mucosa is promoted, and the organic lesion of the nasal cavity is effectively improved. The traditional Chinese medicine preparation has high total clinical treatment rate, provides a better and safer new scheme for clinical treatment of chronic rhinitis, and has important clinical application value.

The objective of the invention is to provide the intelligent terminal device based on the 3D simulation teaching of the nasal endoscope operation technology, through a three-cavity integrated advanced nasal endoscope, a trainee can carry out a simulation teaching experiment in a nasal cavity model, and the knowledge and operation experience of the trainee on the mechanical structure, fluid control, man-machine interaction and other aspects of the device are cultivated. Artificial blood is injected into the semi-visual nasal cavity model to form a set of complete endoscope teaching process integrating optical, flushing and suction modules.

The invention relates to the technical field of biomedical materials, and discloses a preparation method of an injectable composite support material for denasal endoscopic skull base reconstruction, and the method comprises the following steps: preparing a component A aqueous solution and a component B non-aqueous phase paste; the component A comprises a hyaluronic acid derivative grafted with dopamine and alginate. The component B is paste in which calcium salt solid-phase particles, enzyme, polymer microspheres and nanoscale fumed silica are dispersed in a non-aqueous phase dispersion medium, and the nanoscale fumed silica is used for inhibiting solid-phase particle sedimentation. According to the method, the prepared component A and the prepared component B are respectively packaged in a double-component application device. According to the invention, active components are isolated in a non-aqueous phase, and controllable operation time, firm adhesion to tissues and mechanical support provided by polymer microspheres are realized through a staged curing mechanism of ionic crosslinking and enzymatic crosslinking during use; the problem that an existing material is difficult to consider storage stability, operation convenience and composite functionality at the same time is solved.

The present invention provides a fully automatic robot-assisted nasal endoscopy method and system, including a nasal endoscope, an image preprocessing module, an optical positioning module, a motion planning module, a force sensing module, and a control module. The fully automatic nasal endoscopy method includes the following steps: the robot clamps the nasal endoscope to an initial position; obtains an endoscopic image, and preprocesses the endoscopic image for image enhancement and optical flow estimation; inputs the endoscopic image, the corresponding optical flow map, and the current state of the robot into a deep learning network for motion and path planning; monitors the contact between the endoscope and the nasal tissue based on a force sensor system provided on the endoscope; and controls the robot's motion based on motion planning results and force feedback data. The present invention adopts the above-mentioned fully automatic robot-assisted nasal endoscopy method and system to control the robot to fully automatically perform the nasal endoscopy inspection process, thereby improving the efficiency and stability of nasal endoscopic surgery and diagnosis and treatment.

The invention relates to the technical field of automatic film covering, in particular to a nasal endoscope lens and endoscope body automatic film covering device which comprises a mounting box, a partition plate, a suction cup, a lifting mechanism, a synchronizing mechanism, a cutting mechanism and a driving mechanism, an equipment box is arranged at the top of the mounting box, and a film covering roll is rotationally arranged in the equipment box; the partition plate is arranged in the mounting box; the two groups of suckers are used for adsorbing a film; the number of the lifting mechanisms is two. The synchronizing mechanism is arranged in the equipment box; the cutting mechanism is movably arranged in the mounting box and is used for cutting the film; the driving mechanism is arranged in the mounting box and used for feeding the endoscope into the mounting box. Through cooperative arrangement of the driving mechanism and the heating ring, the driving mechanism drives the endoscope and the thermal shrinkage film to enter the heating ring through the movable hole of the partition plate, and the thermal shrinkage film is heated to be attached to the surface of the endoscope, so that the lens at the end part of the endoscope is effectively coated with a film, and meanwhile, the use of the nasal endoscope is not influenced.

The invention discloses an insertion part of a transnasal endoscope and the transnasal endoscope, and relates to the technical field of medical instruments.The insertion part of the transnasal endoscope comprises a head end part, a bent part and an insertion tube assembly, and the end face of the far end of the head end part is provided with a steam nozzle, an image transmission objective lens window, an illumination window, an auxiliary water supply outlet and an instrument channel outlet; an image transmission board card is arranged in the head end part, an electronic wire harness, a water vapor pipeline, a light guide assembly, an instrument channel pipeline and an auxiliary water supply pipeline are arranged in the bending part and the insertion pipe assembly in a penetrating manner, and the diameters of the electronic wire harness and the instrument channel pipeline are larger than those of the water vapor pipeline, the light guide assembly and the auxiliary water supply pipeline; the distance between the connecting line of the center of the instrument channel pipeline and the center of the electronic wire harness and the center of the head end part, the bending part or the insertion pipe assembly is 0-1 mm, and the steam pipeline and the auxiliary water supply pipeline are located on the two sides of the connecting line of the center of the instrument channel pipeline and the center of the electronic wire harness respectively. The nasal endoscope has the auxiliary water supply function, and water supply is stable.

The nasal cavity protection device comprises an inner layer (1) and an outer layer (2) which are integrally arranged, the surface of the inner layer is sleeved with the outer layer (2), a transition section where the inner layer (1) and the outer layer (2) are integrally connected is of a retractable and rebounding structure and serves as an extending-in end (3) extending into the nasal cavity, and a port of the other end of the inner layer (1) is turned outwards and reversely sleeved to form a protection cover. And a protruding end (4). Compared with the prior art, the nasal cavity protection device for the transnasal endoscopic surgery channel has good contraction resilience performance, can adapt to nasal cavities of different shapes and sizes, and can effectively protect mucous membranes of the nasal cavities.

The utility model relates to a suction tube fixing device of a nasal endoscope, which comprises the nasal endoscope and a suction tube, and further comprises a main body fixing column, the main body fixing column is made of an elastic material, a first through hole and a second through hole which are parallel to each other are arranged in the main body fixing column, and both the first through hole and the second through hole penetrate through the front end and the rear end of the main body fixing column. The first through hole is in interference fit with the front end of the nasal endoscope, and the second through hole is in interference fit with the front end of the suction tube. Compared with the prior art, the nasal endoscope and the suction tube can be grasped by one hand during use, the other hand of a doctor is liberated, surgical instruments can be conveniently taken for surgical operation, the whole device is convenient and reliable to use, and the working efficiency of the doctor is greatly improved.

The retractable nasal endoscopic lacrimal sac incision knife comprises a knife handle, a retractable mechanism is arranged in the knife handle and comprises a knife head sliding switch in the middle of the knife handle, a spring plunger is arranged at the end, penetrating through a push rod, of the knife head sliding switch, and the spring plunger is located in a limiting hole to limit the push rod; one end of the push rod is connected with a rhombic cutter head through a cutter head sheath tube, and the rhombic cutter head comprises a cutter handle on the upper portion, a rhombic cutter tip at the bottom and sharp cutting edges with the cutter tip gradually widened towards the two sides. According to the lacrimal sac incision knife, the knife head sliding switch is a thumb sliding type push button, the length of the lacrimal sac incision knife can be controlled under an endoscope through the telescopic design that the knife head sliding switch drives the push rod and the rhombic knife head to move, and the situation that the surgical field is affected due to nasal cavity mucosa bleeding is damaged is avoided; anti-slip lines are designed on the knife handle, so that the knife handle is suitable for single-hand fine operation; the rhombic tool bit is formed by precisely grinding medical 316L stainless steel.

The invention relates to the technical field of medical instruments and discloses a nasal endoscope multi-angle adjusting assembly which comprises a nasal endoscope body, the nasal endoscope body comprises a light cone and an outer endoscope tube, a through opening is formed in the position, close to the handheld end, of the outer endoscope tube, the outer wall of the outer endoscope tube is fixedly connected with a holder, and the holder is located on the periphery of the through opening. A sleeve corresponding to the through opening is arranged on the outer side of the holder, a knob is rotationally connected in the sleeve, an inner mirror tube is clamped in the outer mirror tube, a working channel is formed between the inner mirror tube and the outer mirror tube, a plurality of limiting rings are clamped in the working channel, an object mirror frame is rotationally connected to the insertion end of the inner mirror tube, and an object lens is fixedly connected to the inner periphery of the object mirror frame. The nasal cavity endoscope has the advantages that the angle of the objective lens is accurately controlled through the up-down knob, an operator can easily obtain visual fields of different angles in the nasal cavity, and the angle of the objective lens can be flexibly adjusted when the nasal cavity side wall, the paranasal sinus opening, the turbinate and other structures are examined.

The utility model relates to the technical field of medical auxiliary equipment, in particular to a nasal endoscopic postoperative nasal paste which comprises fixing bands and a skin attaching layer, binding bands are movably installed on the fixing bands, the fixing bands are symmetrically installed on the two sides of the skin attaching layer, and fixing strips are fixedly installed on the sides, close to the skin attaching layer, of the fixing bands. The fixing strips are symmetrically and fixedly installed on the two sides of the skin attaching layer. Compared with the prior art, air circulation is promoted through the funnel-shaped holes in the surface layer, wound dryness is maintained, and exudate is guided to flow; the outer display layer is made of a PE (polyethylene) material and is not easy to leak to the outer surface; the binding belt realizes personalized fitting degree and is convenient to use and store on one side; the outer layer structure can visually display the bleeding amount, feedback is provided through color change and expansion of polyurethane foam, continuous monitoring is achieved, self-monitoring and timely replacement of a patient are facilitated, and the infection risk is reduced.

The invention provides an eCRSwNP nasal endoscopic postoperative treatment method for regulating acidophilic granulocyte activity based on acupuncture, and relates to the technical field of traditional Chinese medicine for preventing and treating nasosinusitis diseases. According to the eCRSwNP nasal endoscopic post-operation treatment method for adjusting the acidophilic granulocyte activity based on acupuncture, accurate adjustment of the acidophilic granulocyte activity is achieved through a synergistic scheme of a nasal endoscopic operation, perioperative drug treatment and standardized acupuncture treatment, the postoperative recurrence rate is reduced, and the nasal symptom and life quality of a patient are improved. Acupuncture point selection, operation specifications, treatment frequency and treatment course of acupuncture are defined, a repeatable and generalizable standardized treatment scheme is formed in combination with strict patient screening standards, a quality control system and ethical guarantee, the technical problems that existing eCRSwNP postoperative treatment is lack of targeted immunoregulation means and the recurrence rate is high are solved, and the therapeutic effect of the eCRSwNP postoperative treatment is improved. And a new clinical path is provided for traditional Chinese medicine intervention on refractory nasosinusitis diseases.

The invention relates to a medicated thread for treating nasopharynx cancer, a preparation method and a treatment method, and belongs to the field of medical treatment, the medicated thread is prepared by fusing toad skin small molecule peptide extracted by soaking with acetic acid, iron ions provided by medicinal ferrous sulfate and iodine glycerin. The treatment method comprises the following steps: precisely embedding the medicated thread into a nasopharyngeal tumor under the guidance of a nasal endoscope, and combining microwave treatment after 3-5 days. The synergistic effect of the Fenton reaction initiated by iron ions and the tumor anti-oxidation system inhibited by the toad skin small molecule peptide effectively induces ferroptosis of tumor cells, and the treatment effect is enhanced by combining the heat effect of microwaves. According to the invention, minimally invasive targeted therapy is realized, anti-tumor immunity of a body can be activated, and a new treatment strategy is provided for nasopharynx cancer.

The invention relates to the technical field of medical equipment, and discloses a transnasal endoscopic surgery channel device which comprises an upper shell medical equipment technology and a lower shell medical equipment technology, and a middle release position mechanism is arranged between the upper shell medical equipment technology and the lower shell medical equipment technology. The upper shell medical equipment technology and the lower shell medical equipment technology are both used for providing installation positions, the moving mechanism medical equipment technology is arranged between the upper shell medical equipment technology and the lower shell medical equipment technology, and the positioning mechanism medical equipment technology is arranged in the upper shell medical equipment technology. The retreating and feeding of the internal thread piece and the outer sheath tube are controlled through the rotation of the middle release position piece, so that the outer sheath tube can be controlled to reset when the sheath net does not completely leave from the interior of the outer sheath tube, the sheath net is sleeved with the outer sheath tube again, then the sheath net can be recycled, an error space can be reserved for an operator, and the safety of the operator is improved. The error-tolerant rate of an operator is improved, and the operation difficulty is reduced.

The invention provides an upper airway stenosis automatic analysis method based on deep learning, and belongs to the technical field of automatic analysis, and the method comprises the steps: obtaining a nasal cavity mirror video stream of a patient based on a nasal cavity mirror; capturing, in real time, the residence time at each nasal cavity position after the nasal cavity mirror enters the nasal cavity of the patient based on a timer tool arranged on the nasal cavity mirror; detecting the nasal cavity mirror video stream based on a first model, and in combination with the captured stay time, obtaining a key frame of the nasal cavity mirror video stream and outputting a key segment; and the nasal cavity blockage type of the key segment is identified based on a second model and evaluated, if an evaluation result meets a set standard, the nasal cavity blockage type is output, and otherwise, the nasal cavity blockage type is adjusted and then output. The accuracy of evaluation is ensured, the diagnosis efficiency is improved, an auxiliary judgment basis is provided for nasal cavity treatment, and the workload of doctors is effectively relieved.

This invention discloses a nasal endoscope driving method, electronic device, and storage medium, belonging to the field of image data processing technology. The method includes: acquiring real-time insertion images within the nasal cavity using an endoscope; determining the real-time insertion position reached by the endoscope based on the real-time insertion images and a preset endoscopic navigation path, and determining the amount of secretions at the real-time insertion position based on the real-time insertion images; determining the movement speed parameter of the endoscope at the real-time insertion position based on preset collision parameters corresponding to the real-time insertion position and the amount of secretions at the real-time insertion position; and adjusting the real-time driving speed of the endoscope's drive motor based on the movement speed parameter. This invention can rationally drive the nasal endoscope to move inside the nasal cavity, avoiding damage to the nasal mucosa caused by inappropriate movement speed of the nasal endoscope, reducing intraoperative discomfort during nasal endoscopy, and improving postoperative recovery.

The invention relates to the field of medical instruments, in particular to a dry eye detection and analysis system based on a nasal endoscope, which comprises a user interaction module, a dry eye detection module, a data processing module and a dry eye analysis module, the user interaction module is used for receiving a user instruction and patient data, the dry eye detection module is used for carrying out various dry eye detection on a patient and collecting detection data, and the data processing module is used for carrying out data processing on the detection data of the dry eye detection module and the patient data of the user interaction module. And the dry eye analysis module is used for analyzing the dry eye condition of the patient according to the processed data and outputting a disease treatment effect index of the patient. According to the scheme, the operation effect is analyzed by comparing the dry eye conditions before and after the operation, and the corresponding disease treatment effect index is obtained, so that the postoperative rehabilitation condition of the patient is judged, a subsequent treatment scheme is formulated according to the rehabilitation condition, and the risk of disease relapse is reduced.

The utility model discloses a cold compress device suitable for being used after nasal endoscopic surgical treatment, which comprises a cold compress component laid on the nose of a patient, a liquid injection component used for conveniently injecting condensed liquid into the inner cavity of the cold compress component is arranged on the cold compress component, and a binding component used for conveniently fixing the cold compress component on the nose of the patient is arranged on the cold compress component; the cold compress assembly comprises a cold compress bag; the cold compress bag is designed to be of a pi-shaped structure and can be attached to the nose of a patient, more accurate cold compress operation can be carried out on the nose of the patient, 10% strong brine is adopted as condensed liquid to be injected into the cold compress assembly, shape adjustment can be carried out according to individual differences of the nose of the patient, and the cold compress efficiency is improved. The skin-friendly bag is beneficial to improving the skin-friendly performance of the cold compress bag, the phenomenon that the cold compress bag makes direct contact with the skin of a patient to cause frostbite is avoided, the cold compress assembly can be fixed to the head of the patient through the binding assembly, and the cold compress bag has the advantages of fitting performance, plasticity, comfort and convenience.

The invention provides a nasal polyp automatic grading model training method, a scoring method, a system and equipment, and relates to the technical field of image analysis. In order to solve the problem that automatic grading of nasal polyp of a chronic sinusitis patient is difficult to realize in the prior art, an endoscopic image set containing different grades of nasal polyp score marking information is constructed based on nasal endoscopic image data of the patient, and a preset target detection model is trained by using the image set, so that the classification of the nasal polyp of the chronic sinusitis patient is realized. Therefore, the preset target detection model can directly learn and internalize the international standard of nasal polyp grade scoring, and then the preset target detection model can stably learn the nasal endoscope characteristics covering each scoring grade through the full-process training of data enhancement, cross validation and hyper-parameter tuning, so that the accuracy of the nasal endoscopy is improved. And the output nasal polyp grade score has both automation and accuracy, so that the core technical bottleneck of automatic nasal polyp grading under the endoscope is solved.

This application discloses a multimodal electromagnetic navigation-assisted transnasal endoscopic anatomical measurement device and method for a fresh cadaver head. The method is applied to the control module of the device, which also includes an endoscope module and an electromagnetic tracking module. The method includes: obtaining multimodal image information corresponding to the fresh cadaver head to be measured; generating a three-dimensional model of the fresh cadaver head based on the multimodal image information; obtaining a target position corresponding to a preset key anatomical structure in the three-dimensional model; the key anatomical structure includes at least one or more of the nasal cavity, sinuses, blood vessels, and nerves; when the endoscope module enters the nasal cavity of the fresh cadaver head, obtaining magnetic field information sent by the electromagnetic tracking module; calculating the spatial position of the electromagnetic tracking module in the three-dimensional model based on the magnetic field information; generating navigation information corresponding to the endoscope module based on the spatial position and the target position, the navigation information including direction information and distance information; and moving the endoscope module to the target position based on the navigation information.

The present invention relates to the field of abnormal sinus image recognition, and particularly to a method for marking deformed regions of sinus images under a nasal endoscope. The present invention segments sinus images to obtain gray surface regions, and obtains edge curves in the gray surface regions; obtains inflection points in the curves, fits inflection point curves, obtains curve difference coefficients through the shape differences between the two, and further obtains cumulative curve difference coefficients for each image; uses the same to perform clustering on all images to obtain sinus image clustering clusters and sort them; obtains specific coefficients for each cluster according to the differences in cumulative curve difference coefficients between different clusters; and further screens the clusters to obtain abnormal sinus image clusters; marks the deformed regions according to the abnormal clusters. The present invention can accurately mark all sinus deformed regions, so that relevant medical personnel can accurately judge abnormal conditions in sinus images.

A method for constructing a clinically-relevant large animal model of traumatic optic neuropathy, employing a goat with orbital anatomy and optic nerve structure similar to humans as a model animal, overing the defects existing in other animals as TON model animals. The target model goat is obtained by screening parameters, such as a maximum transverse diameter of a coronal plane of a body of sphenoid bone and a wall width of a sphenoid bone, thereby facilitating the exposure of an optic nerve in a optic-canal segment under a nasal endoscopic surgery and quantitative injury. With the optic nerve injury animal model, the clinical TON pathogenesis can be explored by studying the optic nerve at the injured optic canal. In the prepared TON animal model, the injured optic nerve is closer to the brain, which is beneficial to rebuilding the synaptic connection.

The embodiment of the invention provides an adenoid hypertrophy image recognition method and system based on a visual nasal endoscope. The method comprises the steps that a nasal endoscope image of a patient is acquired; wherein the nasal endoscope image comprises at least one of a nasal cavity image, a nasal meatus image and a nasopharynx image; determining an image type corresponding to the nasal endoscope image; selecting a corresponding sub-adenoid hypertrophy image recognition model from the adenoid hypertrophy image recognition models based on the corresponding relationship between the image types and the image models, recognizing the nasal endoscope image through the sub-adenoid hypertrophy image recognition model, and determining a diagnosis result of adenoid hypertrophy; wherein the adenoid hypertrophy image recognition model is obtained by training a plurality of different nasal endoscope sample images; the image model corresponding relation is a mapping relation between a preset image type and the subadenoid hypertrophy image recognition model. According to the scheme, the image recognition accuracy of adenoid hypertrophy can be improved.

The utility model discloses a lens and suction tube fixing device for nasal endoscopic surgery, which comprises a first isolation plate, a transmission component, a first connecting arm, a second connecting arm, a second isolation plate and a locking component, and a driving shaft, a first rotating shaft and a second rotating shaft are rotatably arranged on the first isolation plate; the transmission assembly is arranged on the driving shaft, connected with the first rotating shaft and the second rotating shaft and used for driving the first rotating shaft and the second rotating shaft to rotate; the first connecting arm is arranged on the first rotating shaft, and a first sleeve hole for fixing a nasal endoscope is formed in the first connecting arm; the second connecting arm is arranged on the second rotating shaft, and a second sleeve hole for fixing the aspirator is formed in the second connecting arm; the second isolation plate is arranged on the driving shaft, the first rotating shaft and the second rotating shaft, and is positioned above the first connecting arm and the second connecting arm; the locking assembly is arranged on the second isolation plate, connected with the driving shaft and used for locking the driving shaft. The distance between the nasal endoscope and the aspirator can be adjusted, and the nasal endoscope is convenient to use.