Multifunctional visual Eustachian tube bronchofiberscope and Eustachian tube lesion diagnosis system and method

Abstract

The embodiment of the invention provides a multifunctional visual Eustachian tube bronchofiberscope and an Eustachian tube lesion diagnosis system and method, and belongs to Eustachian tube lesion diagnosis. The multifunctional visual auditory tube bronchofiberscope comprises an operating handle, an insertion assembly and a connecting assembly, the operating handle comprises a function switching key set and a direction control button, the function switching key set is used for switching different imaging modes, and the direction control button is used for controlling the insertion assembly to rotate by 360 degrees; the insertion assembly comprises an insertion assembly head end and an insertion assembly tail end, the insertion assembly head end is connected with the operating handle, the insertion assembly middle end is provided with an optical observation window, an instrument channel outlet and a hollow expandable balloon, the optical observation window is used for collecting image information, the instrument channel outlet is used for allowing diagnosis and treatment instruments to go in and out, and the hollow expandable balloon is used for allowing the diagnosis and treatment instruments to go out. The hollow expandable balloon is used for expanding a narrow Eustachian tube wall in a full state; the connecting assembly is connected with the operating handle, and the connecting assembly is used for transmitting optical signals and image signals. According to the embodiment of the invention, the positioning accuracy of the Eustachian tube lesion can be improved.

Description

Technical Field

[0001] This application relates to the diagnosis of Eustachian tube lesions, and more particularly to a multifunctional visual Eustachian tube bronchoscope, a system and method for diagnosing Eustachian tube lesions. Background Technology

[0002] Currently, the causes of eustachian tube lesions are complex and diverse, including local structural abnormalities such as polyps, ulcers, angiogenesis, and tumors, as well as diffuse functional abnormalities such as infection, edema, gastroesophageal reflux, eosinophilia, and muscle dysfunction. The treatment plans for different causes vary significantly. Therefore, accurate etiological diagnosis and differentiation of lesion types are prerequisites for clinical treatment.

[0003] Current diagnostic methods for eustachian tube lesions typically include clinically common techniques such as acoustic impedance, temporal bone CT, and otoscopic endoscopy. However, these methods are mostly indirect assessments, only reflecting the general functional status or general morphological outline of the eustachian tube. They cannot clearly present the fine structure of the mucosa within the tube, the morphology of blood vessels, functional metabolic changes, and the degree of stenosis. It is difficult to determine the specific location and nature of the lesion. Furthermore, most common otoscopic devices use a single tympanic membrane imaging mode (observing whether there is fluid accumulation in the tympanic cavity or whether the tympanic membrane is retracted through the tympanic membrane). They can either only observe morphological changes of the tympanic membrane or only assess some functional indicators, and cannot directly observe the structure and perform functional tests. As a result, the condition of the eustachian tube lesion cannot be determined, and the location and degree of stenosis within the eustachian tube cannot be determined and assessed. This easily leads to missed diagnoses and misdiagnoses, and also prevents local treatment of the eustachian tube. Therefore, there is an urgent clinical need for a bronchoscope with multimodal visualization imaging, functional status assessment and integrated intervention capabilities, as well as a corresponding diagnostic method for eustachian tube lesions, to achieve accurate localization, etiological differentiation and efficient diagnosis and treatment of eustachian tube lesions, and to solve the technical problem of inaccurate localization of eustachian tube lesions in existing technologies. Summary of the Invention

[0004] The main objective of this application is to propose a multifunctional visual eustachian tube bronchoscope, a eustachian tube lesion diagnosis system and method, aiming to improve the accuracy of eustachian tube lesion localization and the therapeutic efficacy of eustachian tube lesions.

[0005] To achieve the above objectives, a first aspect of this application provides a multifunctional visual eustachian tube bronchoscope, including an operating handle, an insertion assembly, and a connecting assembly, characterized in that it includes: The operating handle includes a function switching button group and a direction control button. The function switching button group is used to switch between different imaging modes, and the direction control button is used to control the insertion component to rotate 360°. The insertion assembly includes an insertion assembly head end and an insertion assembly tail end. The insertion assembly head end is connected to the operating handle. The middle end of the insertion assembly is provided with an optical observation window, an instrument channel outlet, and a hollow expandable balloon. The optical observation window is used to acquire image information. The instrument channel outlet is used for the entry and exit of diagnostic and therapeutic instruments. The hollow expandable balloon is used to expand the narrow Eustachian tube wall when inflated. The connection component is connected to the operating handle, and the connection component is used to transmit optical signals and image signals.

[0006] In some embodiments, the function switching button group includes a first button, a second button, a third button, and a fourth button. The first button is used to switch the imaging mode to a linked color imaging mode, the second button is used to switch the imaging mode to a blue laser imaging mode, the third button is used to switch the imaging mode to an autofluorescence imaging mode, and the fourth button is used to switch the imaging mode to a near-infrared spectral imaging mode.

[0007] In some embodiments, the connection component includes a beam guide for transmitting 395-475nm blue laser light and 700-900nm near-infrared light.

[0008] In some embodiments, the operating handle further includes a first interface, a second interface, and a third interface. The first interface is connected to the second interface, and the third interface is not connected to the first interface or the second interface. The first interface is used for aspirating secretions from the Eustachian tube or pushing medication, the second interface is used for the entry and exit of diagnostic and therapeutic instruments, and the third interface is used for injecting dilating media.

[0009] In some embodiments, the insertion assembly further includes a suction-injection channel, a device inlet / outlet channel, and a dilatation medium channel. The suction-injection channel is connected to the first interface. The device inlet / outlet channel includes a first end and a second end. The first end of the device inlet / outlet channel is connected to the second interface, and the second end is connected to the device outlet. The dilatation medium channel includes a first end and a second end. The first end of the dilatation medium channel is connected to the third interface, and the second end is connected to the hollow dilatation balloon.

[0010] In some embodiments, the first interface, the second interface, and the third interface can be blocked individually, or the first interface and the second interface can be blocked simultaneously, or the first interface and the third interface can be blocked simultaneously, or the second interface and the third interface can be blocked simultaneously, or the first interface, the second interface, and the third interface can be blocked simultaneously.

[0011] To achieve the above objectives, a second aspect of this application provides a diagnostic system for eustachian tube lesions. The diagnostic system includes an imaging device, a laser light source host, and a multifunctional visual eustachian tube bronchoscope. The imaging device is communicatively connected to the laser light source host, and the laser light source host is communicatively connected to the connecting component. The imaging device is used to display images under different imaging modes, and the laser light source host is connected to the beam guide and is used to provide a light source.

[0012] To achieve the above objectives, a third aspect of this application provides a method for diagnosing eustachian tube lesions, the method comprising: Obtain the lighting source generated by the laser source host. Based on the aforementioned illumination source and beam guide, the insertion component is examined for Eustachian tube insertion, and white light imaging data of the Eustachian tube mucosa is obtained. Based on the white light imaging data of the eustachian tube mucosa, lesion identification is performed to obtain the eustachian tube lesion results; Based on the results of the eustachian tube lesions, the eustachian tube detection mode is switched to obtain the type of eustachian tube mucosal lesion. Based on the type of eustachian tube mucosal lesion and the first interface, drug delivery is performed.

[0013] In some embodiments, the eustachian tube lesion results include localized structural abnormalities in the eustachian tube; Based on the results of the Eustachian tube lesions, the Eustachian tube detection mode is switched to obtain the type of Eustachian tube mucosal lesion, including: Based on the aforementioned local structural abnormalities in the Eustachian tube and the linked color imaging mode, a screening of the Eustachian tube area is performed to obtain suspicious lesion areas; Based on blue laser imaging, the suspicious lesion area is analyzed to obtain the type of lesion in the Eustachian tube mucosa.

[0014] In some embodiments, the eustachian tube lesion results include diffuse changes in the eustachian tube; Based on the results of the Eustachian tube lesions, the Eustachian tube detection mode is switched to obtain the type of Eustachian tube mucosal lesion, including: Based on the diffuse changes in the Eustachian tube and the near-infrared spectral imaging mode, hemoglobin levels were detected to obtain hemoglobin fluctuation characteristics. Based on the diffuse changes in the Eustachian tube and the autofluorescence imaging pattern, Eustachian tube edema is identified to obtain the characteristics of Eustachian tube mucosal edema. Based on the hemoglobin fluctuation characteristics and the edema characteristics of the eustachian tube mucosa, the lesion type was analyzed to obtain the eustachian tube mucosal lesion type.

[0015] The multifunctional visual eustachian tube bronchoscope, eustachian tube lesion diagnostic system, and method proposed in this application transmit illumination light generated by a laser source host through a beam guide. Simultaneously, the insertion component is inserted into the patient's eustachian tube to obtain white light imaging data of the eustachian tube mucosa. This data is then used to identify lesions and obtain eustachian tube lesion results, enabling preliminary screening for eustachian tube lesions. Furthermore, based on the phenomena characterized by the eustachian tube lesion results, different imaging modes in the multifunctional visual eustachian tube bronchoscope can be switched to analyze the type of eustachian tube mucosal lesion, improving the accuracy of eustachian tube lesion diagnosis. Finally, based on the type of eustachian tube mucosal lesion, therapeutic drugs are delivered to the patient's eustachian tube through the first interface. This simplifies the operational process of eustachian tube lesion treatment and provides patients with effective treatment methods, reducing the uncertainty of diagnosis and treatment, improving the accuracy of diagnosis and treatment, and avoiding excessive examination and adverse drug reactions. In addition, it reduces the risk of missed diagnosis and misdiagnosis due to insufficient visualization in traditional eustachian tube lesion diagnosis methods, and improves the safety and efficiency of eustachian tube lesion diagnosis and treatment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the multifunctional visualization eustachian tube fiberoptic bronchoscope provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of a multifunctional visualization eustachian tube bronchoscope provided in another embodiment of this application; Figure 3 This is a schematic diagram of the structure of an insertion component provided in another embodiment of this application; Figure 4 This is a schematic diagram of the eustachian tube lesion diagnostic system provided in the embodiments of this application; Figure 5 This is a flowchart of the method for diagnosing eustachian tube lesions provided in the embodiments of this application; Figure 6 This is provided by the embodiments of this application. Figure 5 Flowchart of step S504; Figure 7 This is provided by another embodiment of the present application. Figure 5 The flowchart for step S504. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0020] First, let's analyze some of the terms used in this application: Linked Color Imaging Mode: This mode utilizes a 410nm deep blue laser and a 450nm blue-green laser emitted by a laser light source system to achieve imaging. The 410nm laser is easily absorbed by hemoglobin, while the 450nm laser provides bright background illumination. This mode optimizes the sensitivity ratio of the image sensor to red, green, and blue light, especially enhancing the detection intensity of the red light signal. It can differentiate similar shades of light red, deep red, and pinkish-white under white light, making hemoglobin-rich lesions appear as distinct red, deep red, or orange-red, while normal mucosa or keratinized / fibrotic areas appear as pure, bright white or pale yellow. With its high contrast and natural colors, it quickly highlights areas of abnormal mucosal color, making it suitable for large-scale screening of the entire Eustachian tube and accurately locating suspicious lesions.

[0021] Blue laser imaging mode: Blue laser imaging mode belongs to laser-excited narrowband imaging technology, also using two wavelengths of laser light as light sources: 410 nm and 450 nm. 410 nm blue light has a shallow penetration depth and is strongly absorbed by hemoglobin in the mucosal surface, clearly revealing the morphology of microvessels; 450 nm blue-green light penetrates slightly deeper, providing a clear mucosal surface structure and a bright field of view. The two lasers work synergistically to achieve high-resolution, high-contrast imaging of the morphology of fine blood vessels and surface glandular and crypt structures in the mucosal surface. This allows for precise localization of lesion boundaries, preliminary assessment of lesion invasion depth, and differentiation between benign and malignant lesions by analyzing vascular morphology. It provides precise target areas for biopsies and is the core mode for the fine assessment of local structural lesions.

[0022] Autofluorescence Imaging Mode: Based on the autofluorescence properties of tissues, autofluorescence imaging mode uses blue light (395-475 nm) as excitation light. After irradiating the Eustachian tube mucosa, the inherent fluorescent substances in the tissue, such as collagen and elastin, emit fluorescence at specific wavelengths. Normal mucosa, rich in collagen in the stroma, produces strong green fluorescence; while abnormal or cancerous mucosa shows changes such as epithelial thickening, stroma collagen destruction, and angiogenesis, resulting in a significant decrease in green fluorescence intensity, appearing as purplish-red or dark areas in the imaging field. This mode requires no additional staining, can quickly scan large areas of mucosa, and the fluorescence differences in abnormal areas, like red flags, easily attract the operator's attention. It has the advantages of high sensitivity for large-scale screening and intuitive operation, and can efficiently detect potential lesion areas.

[0023] Near-infrared spectroscopy imaging mode: This non-invasive functional detection mode utilizes the absorption characteristics of near-infrared light (700-900 nm) to quantitatively detect changes in the levels of oxidized and deoxygenated hemoglobin in tissues, indirectly reflecting tissue oxygen uptake and local oxygen supply status. By capturing data such as the concentration difference and rate of change of the two hemoglobins in the tympanic cavity during the opening and closing of the Eustachian tube, this mode assesses the functional status of the muscles controlling Eustachian tube opening, determining whether functional impairment stems from mucosal lesions or muscle movement abnormalities. Its core advantage lies in its ability to detect potential abnormalities in tissue metabolism and muscle function early, even when there are no obvious abnormalities in mucosal morphology, providing crucial evidence for differentiating the etiology of diffuse functional disorders.

[0024] The Eustachian tube, as the only anatomical passage connecting the middle ear to the outside world, is a core structure for middle ear drainage and pressure regulation. Abnormal function or mucosal lesions of the Eustachian tube easily lead to secretory otitis media, causing clinical symptoms such as ear fullness and hearing loss. It has a high incidence rate in both children and adults. If left untreated, it may progress to tympanic sclerosis, tympanic adhesions, or even cholesteatoma of the middle ear, seriously affecting hearing health and children's speech development. Currently, the etiologies of Eustachian tube lesions are complex and diverse, including local structural abnormalities such as polyps, ulcers, angiogenesis, and tumors, as well as diffuse functional abnormalities such as infection, edema, gastroesophageal reflux, eosinophilia, and muscle dysfunction. The treatment plans for different etiologies vary significantly. Currently, there are no instruments that can quickly, easily, and non-invasively differentiate these causes; therefore, accurate etiological diagnosis and differentiation of lesion types are prerequisites for clinical treatment.

[0025] Current diagnostic methods for eustachian tube lesions have many limitations: commonly used clinical methods such as acoustic impedance, temporal bone CT, and otoscopy are mostly indirect assessments, only reflecting the general functional status or general morphological outline of the eustachian tube. They cannot clearly present the fine structure of the mucosa within the lumen, vascular morphology, functional metabolic changes, and stenosis, making it difficult to determine the specific location and nature of the lesion. Traditional endoscopic equipment mostly uses a single tympanic membrane imaging mode (indirectly assessing eustachian tube function by observing whether there is fluid accumulation in the tympanic cavity or whether the tympanic membrane is retracted, which cannot directly observe and reflect the actual situation within the eustachian tube). It can either only observe morphological changes of the tympanic membrane or only assess some functional indicators, and cannot directly observe the structure and perform functional testing. This leads to insufficient ability to differentiate the etiology of diffuse changes from local structural lesions, and the location and degree of stenosis cannot be determined or assessed, easily resulting in missed diagnoses and misdiagnoses. In addition, existing testing equipment often lacks an integrated design with treatment procedures. After diagnosis, it is necessary to change instruments and perform interventions such as drug infusion, which is a cumbersome procedure. Furthermore, some invasive procedures pose a risk of mucosal damage due to low visualization.

[0026] For localized structural lesions, existing screening methods struggle to quickly pinpoint suspicious areas, requiring subsequent pathological identification through blind biopsies with low positive rates. For diffuse changes, traditional methods fail to effectively differentiate between various causes such as infection, edema, reflux, and muscle dysfunction, leading to a lack of targeted treatment. Therefore, there is an urgent clinical need for a eustachian tube bronchoscope with multimodal visualization imaging, functional status assessment, and integrated intervention capabilities, along with corresponding diagnostic methods for eustachian tube lesions. This would enable precise localization of eustachian tube lesions, etiological differentiation, and efficient diagnosis and treatment, addressing the technical challenges of insufficient visualization, ambiguous etiological assessment, and cumbersome procedures in existing technologies.

[0027] Based on this, embodiments of this application provide a multifunctional visual eustachian tube bronchoscope, a eustachian tube lesion diagnosis system and method, aiming to improve the accuracy of eustachian tube lesion localization.

[0028] The multifunctional visualization eustachian tube bronchoscope, eustachian tube lesion diagnosis system and method provided in this application are specifically described through the following embodiments. First, an electrode lead in one of the embodiments of this application is described.

[0029] The embodiments of this application can acquire and process relevant data based on artificial intelligence technology. Artificial intelligence (AI) refers to the theories, methods, technologies, and application systems that use digital computers or machines controlled by digital computers to simulate, extend, and expand human intelligence, perceive the environment, acquire knowledge, and use that knowledge to obtain optimal results.

[0030] Foundational technologies for artificial intelligence generally include sensors, dedicated AI chips, cloud computing, distributed storage, big data processing, operating / interactive systems, and mechatronics. AI software technologies mainly encompass computer vision, robotics, biometrics, speech processing, natural language processing, and machine learning / deep learning.

[0031] This application can be used in a wide variety of general-purpose or special-purpose computer system environments or configurations. Examples include: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, and distributed computing environments including any of the above systems or devices. This application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0032] Figure 1 This is a schematic diagram of the structure of the multifunctional visualization eustachian tube fiberoptic bronchoscope provided in the embodiments of this application, combined with Figure 1 As shown, the multifunctional visual Eustachian tube bronchoscope includes an operating handle 100, an insertion component 200, and a connecting component 300. The operating handle 100 includes a function switching button group 110, a first interface 120, a second interface 130, and a third interface 140. The first interface 120 is used for aspirating secretions from the Eustachian tube or pushing medication. The second interface 130 is used for inserting and removing diagnostic instruments. The third interface 140 is used for pushing dilation media, which can be air or water, etc. It should also be noted that the first interface 120, the second interface 130, and the third interface 140 can be blocked individually, or the first interface 120 and the second interface 130 can be blocked simultaneously, or the first interface 120 and the third interface 140 can be blocked simultaneously, or the second interface 130 and the third interface 140 can be blocked simultaneously, or the first interface 120, the second interface 130, and the third interface 140 can be blocked simultaneously. In addition, the first interface 120 and the second interface 130 are connected, while the third interface 140 is not connected to the first interface 120 and the second interface 130.

[0033] In this embodiment, the multifunctional visualization eustachian tube bronchoscope also integrates an optical imaging module, which includes multiple imaging modes. In one embodiment, different imaging modes can be switched using a function switching button group 110. Specifically, the function switching button group 110 includes a first button 111, a second button 112, a third button 113, and a fourth button 114. The first button 111 is used to switch the imaging mode to a linked color imaging mode, the second button 112 is used to switch the imaging mode to a blue laser imaging mode, the third button 113 is used to switch the imaging mode to an autofluorescence imaging mode, and the fourth button 114 is used to switch the imaging mode to a near-infrared spectral imaging mode.

[0034] like Figure 2 As shown, in another embodiment of this application, the multifunctional visual Eustachian tube bronchoscope may also be provided with a direction control button 150 and an image control button 160 in the operating handle 100. The direction control button 150 is used to control the insertion component 200 to rotate 360°, and the image control button 160 is used to control the dialogue, magnification, reduction, recording or color adjustment of the image generated by the optical imaging module.

[0035] In one embodiment of this application, as Figure 1 As shown, the insertion component 200 includes an insertion component head end 210 and an insertion component tail end 220. The insertion component head end 210 is connected to the operating handle 100, as shown. Figure 3 As shown, the insertion component end 220 is provided with an optical observation window 221, an instrument channel outlet 222 and a hollow expandable balloon 223. The optical observation window 221 is used to acquire image information, the instrument channel outlet 222 is used for the entry and exit of drugs, secretions and diagnostic and therapeutic instruments, and the hollow expandable balloon 223 is used to expand the narrow Eustachian tube wall of the patient when inflated.

[0036] like Figure 1 As shown, the insertion component 200 internally includes a suction and injection channel 230, an instrument inlet / outlet channel 240, and an expansion medium channel 250. The suction and injection channel 230 is connected to the first interface 120. The instrument inlet / outlet channel 240 is divided into a head end and a tail end. The head end is connected to the second interface 130, and the tail end is connected to the instrument channel outlet 222. The expansion medium channel 250 is also divided into a head end and a tail end. The head end is connected to the third interface 140, and the tail end is connected to the hollow expandable balloon 223. It should also be noted that the hollow expandable balloon 223 can change its state through the expansion medium channel 250.

[0037] In one embodiment of this application, the hollow expandable balloon 223 is in its natural state. In its natural state, the hollow expandable balloon 223 naturally contracts to its minimum volume, which can reduce friction and stimulation to the nasal cavity, nasopharynx and eustachian tube mucosa during examination, reduce discomfort during operation, and avoid blockage of the channel or damage to the mucosa due to excessive diameter. It also facilitates the suction of secretions in the eustachian tube through the first interface 120 after diagnosis or treatment, so as to clear the eustachian tube and relieve the problem of eustachian tube blockage. In another embodiment of this application, when the Eustachian tube is narrowed due to lesions and the bronchoscope cannot be inserted for examination, a small amount of expansion medium is injected into the hollow expandable balloon 223 through the third interface 140 and the expansion medium channel 250. This allows the diameter of the hollow expandable balloon 223 to be in a transitional state between its natural state and its fully inflated state, so that the hollow expandable balloon 223 can slightly support the Eustachian tube wall and help fix the position of the insertion component 200. At the same time, by finely adjusting the diameter of the hollow expandable balloon 223, the viewing angle of the optical observation window 221 can be adjusted to ensure that the lesion area of ​​the Eustachian tube mucosa can be clearly imaged.

[0038] In one embodiment of this application, as Figure 1 As shown, the connection component 300 is connected to the operating handle 100. The connection component 300 can be used to transmit image signals. It should also be noted that the connection component 300 includes a beam guide 310, which can be used to transmit optical signals such as 410nm deep blue laser, 450nm blue-green laser, 395-475nm blue light and 700-900nm near-infrared light.

[0039] Figure 4 This is a schematic diagram of the eustachian tube lesion diagnostic system provided in the embodiments of this application, combined with... Figure 4 As shown, the Eustachian tube lesion diagnostic system includes an imaging device 400, a laser light source host 500, and the aforementioned multifunctional visual Eustachian tube fiberoptic bronchoscope. The imaging device 400 is communicatively connected to the laser light source host 500, and the laser light source host 500 is communicatively connected to the connection component 300. The imaging device 400 is used to display images under different imaging modes, and the laser light source host 500 is connected to the beam guide 310 and is used to provide the light source.

[0040] Figure 5 This is an optional flowchart of the eustachian tube lesion diagnosis method provided in the embodiments of this application. The eustachian tube lesion diagnosis method, by combining the above-mentioned eustachian tube lesion diagnosis system, diagnoses eustachian tube lesions in patients and provides drug treatment. Figure 7 The method may include, but is not limited to, steps S501 to S505.

[0041] Step S501: Obtain the illumination source generated by the laser source host. Step S502: Based on the illumination source and the beam guide, perform an Eustachian tube insertion examination on the insertion component to obtain white light imaging data of the Eustachian tube mucosa; Step S503: Based on white light imaging data of the eustachian tube mucosa, lesion identification is performed to obtain the eustachian tube lesion results; Step S504: Based on the results of the eustachian tube lesions, switch the eustachian tube detection mode to obtain the type of eustachian tube mucosal lesion; Step S505: Based on the type of lesion in the Eustachian tube mucosa and the first interface, drug delivery is performed.

[0042] In steps S501 to S505 of this embodiment, the illumination source generated by the laser light source host is transmitted through the guide beam. Simultaneously, the insertion component is used to examine the patient's Eustachian tube, obtaining white light imaging data of the Eustachian tube mucosa. This data is then used to identify lesions and obtain Eustachian tube lesion results, enabling preliminary screening for Eustachian tube lesions. Furthermore, based on the phenomena characterized by the Eustachian tube lesion results, different imaging modes in the multifunctional visual Eustachian tube bronchoscope can be switched to analyze the type of Eustachian tube mucosal lesion, improving the accuracy of Eustachian tube lesion diagnosis. Finally, based on the type of Eustachian tube mucosal lesion, therapeutic drugs are pushed into the patient's Eustachian tube from the first interface, enabling precise local treatment and avoiding the side effects of systemic medication. This simplifies the traditional Eustachian tube lesion treatment process, reduces patient waiting time, and lowers the risk of missed or misdiagnosed lesions due to insufficient visualization in traditional Eustachian tube lesion diagnosis methods, thus improving the safety and efficiency of Eustachian tube lesion diagnosis and treatment.

[0043] In step S501 of some embodiments, the illumination source refers to the light signal generated by the laser light source host and used to illuminate the inside of the Eustachian tube. The illumination source can provide light support for white light imaging and other detection mode switching.

[0044] In this embodiment, the laser light source host in the Eustachian tube lesion diagnosis system can be turned on, and a white light illumination mode can be selected through the control interface of the laser light source host. At the same time, an appropriate output power can be set. Furthermore, after the laser light source host is turned on, it can generate a stable white light signal, which can serve as an illumination source to provide illumination for imaging of the Eustachian tube mucosa.

[0045] In step S502 of some embodiments, the Eustachian tube mucosa white light imaging data refers to the image information of the Eustachian tube mucosa after white light illumination, which is collected through the optical observation window of the inserted component. In the scenario of Eustachian tube lesion diagnosis, the Eustachian tube mucosa white light imaging data can intuitively present the morphological characteristics of the mucosa and provide a basis for lesion identification.

[0046] In this embodiment, the angle of the insertion component is adjusted by the direction control button on the operating handle so that the end of the insertion component is adapted to the anatomical direction of the patient's Eustachian tube. Then, the insertion component is slowly inserted into the patient's affected nasal cavity, and after accurately locating the pharyngeal opening of the Eustachian tube in the nasopharynx, it is gradually advanced until the optical observation window at the middle of the insertion component reaches the target area of ​​the Eustachian tube. At the same time, the white light generated by the laser light source host is transmitted to the optical observation window of the insertion component through the beam guide, illuminating the Eustachian tube mucosa. At this time, the image sensor built into the optical observation window collects the white light image information of the mucosa. This white light image information is transmitted to the imaging device through the display device connection cable, and finally forms observable and analyzable white light imaging data of the Eustachian tube mucosa.

[0047] In step S503 of some embodiments, the eustachian tube lesion result refers to the classification of eustachian tube mucosal abnormalities identified based on white light imaging data. The eustachian tube lesion result may include, but is not limited to, local structural abnormalities in the eustachian tube and diffuse changes in the eustachian tube.

[0048] Local structural abnormalities in the Eustachian tube are abnormally shaped tissues present on the mucosa of the Eustachian tube.

[0049] Diffuse changes in the eustachian tube refer to the presence of widespread abnormalities in the mucosa of the entire eustachian tube, without any obvious local lesions.

[0050] In this embodiment, after obtaining the white light imaging data of the Eustachian tube mucosa, the doctor can view the collected white light imaging data of the Eustachian tube mucosa through the imaging device and compare it with the morphological characteristics of normal Eustachian tube mucosa, which is smooth, light red, and without abnormal protrusions or depressions. This allows for the analysis of the mucosal state in the white light imaging data of the Eustachian tube mucosa one by one, thereby obtaining the result of Eustachian tube lesion. Specifically, if polyps, ulcers, local thickening, abnormal vascular proliferation, or plaques with blurred boundaries are observed in the patient's Eustachian tube mucosa, it can be determined that there are local structural abnormalities in the Eustachian tube mucosa, and the result of Eustachian tube lesion with local structural abnormalities can be generated. If no clear local lesions are observed in the Eustachian tube mucosa, but diffuse hyperemia, edema, or extensive color changes are present, it can be determined that there are diffuse changes in the Eustachian tube mucosa, and the result of Eustachian tube lesion with diffuse changes can be generated.

[0051] In step S504 of some embodiments, the Eustachian tube mucosal lesion type refers to the specific cause or nature of the Eustachian tube mucosal abnormality. Eustachian tube mucosal lesion types usually include malignant lesions, benign lesions, infection-related lesions, allergic reactions, gastroesophageal reflux, and many others.

[0052] In this embodiment of the application, when the lesion result of the Eustachian tube is a local structural abnormality lesion of the Eustachian tube, the Eustachian tube range can be screened based on the local structural abnormality lesion of the Eustachian tube through the linkage color imaging mode to lock the suspicious lesion area, and then the blue laser imaging mode is used to analyze the features of the suspicious lesion area to finally determine the type of Eustachian tube mucosal lesion.

[0053] For details, please refer to Figure 6 In some embodiments, step S504 may include, but is not limited to, steps S601 to S602: Step S601: Based on the local structural abnormalities of the Eustachian tube and the linked color imaging mode, screen the Eustachian tube area to obtain suspicious lesion areas; Step S602: Based on the blue laser imaging mode, perform feature analysis on the suspicious lesion area to obtain the lesion type of the eustachian tube mucosa.

[0054] In step S601 of some embodiments, the linked color imaging mode is an imaging mode of a multifunctional visual eustachian tube fiberoptic bronchoscope. The linked color imaging mode relies on a specific wavelength laser emitted by the laser source host and achieves imaging by optimizing the sensitivity of the image sensor to different colors of light. In the scenario of diagnosing eustachian tube lesions, the linked color imaging mode can enhance the red-white contrast of the mucosa, making the lesion area easier to identify.

[0055] Suspicious lesion areas refer to specific areas on the eustachian tube mucosa where abnormal signals are present, suggesting lesions.

[0056] In this embodiment, after confirming the location of the local structural abnormality lesion marked in the white light imaging data of the Eustachian tube mucosa on the imaging device, the doctor presses the first button on the operating handle corresponding to the linked color imaging mode. The laser source host automatically switches to output 410nm deep blue laser and 450nm blue-green laser. The two lasers are transmitted to the optical observation window of the insertion component through the beam guide, irradiating the entire Eustachian tube mucosa. Furthermore, the image sensor built into the optical observation window enhances the sensitivity to red light signals and optimizes the blue-green light ratio, turning the hemoglobin-rich lesion area in the Eustachian tube mucosa into a bright red, while the normal mucosa appears white or pale yellow. This allows the doctor to observe the enhanced contrast image data through the imaging device, realize a systematic screening of the entire Eustachian tube, and mark suspicious lesion areas that are bright red and have clear boundaries with the surrounding normal mucosa.

[0057] In step S602 of some embodiments, the blue laser imaging mode is an imaging mode of a multifunctional visualization eustachian tube fiberoptic bronchoscope. The blue laser imaging mode uses laser-excited narrow-band imaging technology to focus on the morphology and surface structure of microvessels in the surface layer of the eustachian tube mucosa.

[0058] In this embodiment, the optical observation window of the insertion component is kept aligned with the suspected lesion area marked on the Eustachian tube mucosa. Then, the second button on the operating handle corresponding to the blue laser imaging mode is pressed. At the same time, the laser source host maintains 410 nm and 450 nm laser output. The 410 nm laser penetrates shallowly and is strongly absorbed by the hemoglobin on the surface of the Eustachian tube mucosa, while the 450 nm laser is used to provide a bright field of view. Then, the type of Eustachian tube mucosal lesion can be determined by observing the microvascular morphology, surface gland structure, and vascular network distribution characteristics of the Eustachian tube mucosa. Specifically, if the Eustachian tube mucosa shows characteristics such as disordered vascular network, increased branches, vascular tortuosity, or abnormal proliferation, the type of Eustachian tube mucosal lesion can be determined to be a malignant lesion. If the vascular morphology of the Eustachian tube mucosa is regular, without abnormal proliferation, and the surface gland structure is intact, the type of Eustachian tube mucosal lesion can be determined to be a benign lesion.

[0059] Steps S601 to S602 as illustrated in this embodiment of the application leverage the high-contrast imaging advantage of the linked color imaging mode to achieve rapid and accurate screening of suspicious lesion areas. Furthermore, the blue laser imaging mode's ability to finely analyze microvessels and mucosal structures clarifies the lesion type, avoiding the limitations of a single imaging mode. This achieves a coherent diagnosis from targeted screening to precise characterization, improving the accuracy of identifying local structural lesions and the precision of type differentiation. It also reduces the risk of misdiagnosis or missed diagnosis due to ambiguous lesion location or unclear feature observation, providing a reliable basis for developing targeted treatment plans in clinical practice.

[0060] In another embodiment of this application, when the eustachian tube lesion result is diffuse changes in the eustachian tube, the level of hemoglobin in the eustachian tube mucosa can be detected by near-infrared spectroscopy imaging mode to obtain hemoglobin fluctuation characteristics based on the diffuse changes in the eustachian tube. Then, the edema of the eustachian tube mucosa can be identified by autofluorescence imaging mode to obtain mucosal edema characteristics. Finally, the lesion type is analyzed by combining the hemoglobin fluctuation characteristics and the eustachian tube mucosal edema characteristics to determine the type of eustachian tube mucosal lesion.

[0061] For details, please refer to Figure 7 In some embodiments, step S504 may include, but is not limited to, steps S701 to S702: Step S701: Based on diffuse changes in the Eustachian tube and near-infrared spectral imaging mode, hemoglobin level is detected to obtain hemoglobin fluctuation characteristics. Step S702: Based on diffuse changes in the eustachian tube and autofluorescence imaging mode, eustachian tube edema is identified to obtain eustachian tube mucosal edema characteristics. Step S703: Based on the hemoglobin fluctuation characteristics and eustachian tube mucosal edema characteristics, the lesion type is analyzed to obtain the eustachian tube mucosal lesion type.

[0062] In step S701 of some embodiments, hemoglobin fluctuation characteristics refer to the regularity of concentration changes, rates, and other characteristics of oxidized hemoglobin and deoxyhemoglobin in the open and closed states of the Eustachian tube, obtained by detecting hemoglobin levels.

[0063] In this embodiment, after the doctor confirms that the eustachian tube lesion is diffuse change, he can press the fourth button on the operating handle corresponding to the near-infrared spectral imaging mode. At this time, the laser light source host can switch to output near-infrared light of 500 to 700 nanometers, which is transmitted to the optical observation window of the insertion component through the beam guide. Furthermore, by collecting the basic concentration data of oxidized hemoglobin and deoxygenated hemoglobin in the tympanic cavity of the eustachian tube in both closed and open states, and by using the imaging equipment to record and analyze the basic concentration data of oxidized hemoglobin and deoxygenated hemoglobin, the concentration difference, rate of increase or decrease of the two hemoglobins in the open and closed states can be obtained, thereby forming hemoglobin fluctuation characteristics.

[0064] In step S702 of some embodiments, the edema characteristics of the eustachian tube mucosa refer to the changes in fluorescence intensity and distribution characteristics of the eustachian tube mucosa caused by edema.

[0065] In this embodiment, by keeping the insertion component in a stable position, pressing the third button on the operating handle corresponding to the autofluorescence imaging mode, and switching the output light source of the laser light source host to blue light of 375 to 455 nanometers, the entire Eustachian tube mucosa is irradiated with this blue light. Finally, based on the image data formed by the blue light irradiating the entire Eustachian tube mucosa, the edema characteristics of the Eustachian tube mucosa can be extracted. Specifically, in the image data formed by the blue light irradiating the entire Eustachian tube mucosa, when the Eustachian tube mucosa is normal, the Eustachian tube mucosa is rich in collagen, and the Eustachian tube mucosa area in the image data will emit strong green fluorescence. When the Eustachian tube mucosa is edematous, the collagen in the Eustachian tube mucosa interstitial tissue is destroyed. At this time, the green fluorescence intensity of the Eustachian tube mucosa area in the image data is significantly reduced, and some areas appear pale purple.

[0066] In step S703 of some embodiments, when the hemoglobin fluctuation characteristics show that the concentration difference and rate of increase or decrease of oxidized hemoglobin and deoxyhemoglobin in the open and closed states are within the normal range, and the edema characteristics of the Eustachian tube mucosa are manifested as uniformly weakened green fluorescence in the image data, the lesion type of the Eustachian tube mucosa can be determined to be an infection-related lesion of the Eustachian tube mucosa. When the concentration difference and rate of increase or decrease of the two hemoglobins in the open and closed states are lower than the normal standard, and the edema characteristics of the Eustachian tube mucosa are manifested as localized weakening of green fluorescence and superimposed red enhancement in the image data, it can be determined that... The lesion type of Eustachian tube mucosa is gastroesophageal reflux-related lesion. When the concentration difference and rate of increase or decrease of the two hemoglobins in the open and closed states are lower than the normal standard, and the edema characteristics of the Eustachian tube mucosa are diffuse light purple with white spots in the image data, and the hemoglobin fluctuation characteristics are not obviously abnormal, the lesion type of Eustachian tube mucosa can be determined to be eosinophilic lesion. When the concentration difference and rate of increase or decrease of the two hemoglobins in the open and closed states are lower than the normal standard, but the edema characteristics of the Eustachian tube mucosa are not obvious, the lesion type of Eustachian tube mucosa can be determined to be muscle dysfunction-related lesion.

[0067] Steps S701 to S703 of this embodiment involve acquiring hemoglobin fluctuation characteristics using near-infrared spectroscopy imaging mode, capturing edema characteristics of the Eustachian tube mucosa using autofluorescence imaging mode, and finally, achieving precise differentiation of etiology through comprehensive analysis of hemoglobin fluctuation characteristics and Eustachian tube mucosal edema characteristics, thus obtaining the type of Eustachian tube mucosal lesion. This approach not only overcomes the limitation of a single imaging mode in simultaneously covering functional state and morphological changes, but also improves the accuracy of diagnosing the etiology of diffuse lesions through feature complementarity. It avoids the problem of ambiguous judgment of the etiology of diffuse changes in traditional Eustachian tube lesion diagnostic methods, providing a scientific basis for clinical development of targeted treatment plans, while simplifying the diagnostic process and improving diagnostic efficiency.

[0068] In step S505 of some embodiments, a corresponding therapeutic drug can be selected according to the determined lesion type, and the syringe containing the drug can be connected to the first interface on the operating handle to ensure a reliable connection seal. Furthermore, the doctor can control the drug delivery speed by slowly pushing the syringe piston, so that the drug can be evenly delivered to the patient's Eustachian tube lesion area through the suction injection channel connected to the first interface, ensuring that the drug covers the entire Eustachian tube lesion area, thereby achieving immediate preliminary treatment after diagnosis.

[0069] It should be noted that, in some embodiments of this application, before using the first interface to push the drug, the doctor needs to confirm the type of eustachian tube mucosal lesion and locate the suspected lesion area. Then, the doctor will securely connect the minimally invasive treatment instrument adapted to the type of eustachian tube mucosal lesion to the second interface on the operating handle. The doctor will then adjust the angle and position of the insertion component end by operating the direction control button on the operating handle, so that the instrument channel outlet is accurately aligned with the suspected lesion area. The doctor will then slowly push the minimally invasive treatment instrument along the instrument inlet and outlet channel, so that the tip of the minimally invasive treatment instrument reaches the lesion tissue location in the suspected lesion area. Furthermore, under the real-time monitoring of the visualization imaging mode, the doctor will perform the lesion tissue forceps biopsy, abnormal tissue resection, or bleeding point hemostasis. After the operation is completed, the minimally invasive treatment instrument will be slowly withdrawn along the instrument inlet and outlet channel, thereby completing the targeted treatment of local eustachian tube mucosal lesions.

[0070] It should also be noted that in some other embodiments of this application, after confirming diffuse mucosal lesions of the Eustachian tube accompanied by luminal stenosis, the physician needs to reliably connect the dilation medium delivery device to the third interface on the operating handle. Under visual monitoring, the hollow expandable balloon at the end of the insertion component is kept in the narrowed part of the Eustachian tube. Then, sterile dilation medium is slowly injected into the hollow expandable balloon at the end of the dilation medium channel through the dilation medium delivery device and the third interface, so that the hollow expandable balloon gradually inflates and gently expands the Eustachian tube wall. After maintaining a suitable dilation state for a period of time, the dilation medium is slowly withdrawn to allow the hollow expandable balloon to retract and return to its natural contraction state, thereby completing the dilation treatment of the Eustachian tube and improving the patency and functional state of the lumen, which facilitates the delivery of drugs or instruments.

[0071] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0072] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0073] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0074] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0075] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0076] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0077] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. The coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, or indirect coupling or communication connection between the apparatus or units, and may be electrical, mechanical, or other forms.

[0078] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0079] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0080] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0081] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A multifunctional visual eustachian tube bronchoscope, comprising an operating handle, an insertion assembly, and a connecting assembly, characterized in that, include: The operating handle includes a function switching button group and a direction control button. The function switching button group is used to switch between different imaging modes, and the direction control button is used to control the insertion component to rotate 360°. The insertion assembly includes an insertion assembly head end and an insertion assembly tail end. The insertion assembly head end is connected to the operating handle. The insertion assembly tail end is provided with an optical observation window, an instrument channel outlet, and a hollow expandable balloon. The optical observation window is used to acquire image information. The instrument channel outlet is used for the entry and exit of diagnostic and therapeutic instruments. The hollow expandable balloon is used to expand the narrow Eustachian tube wall when inflated. The connection component is connected to the operating handle, and the connection component is used to transmit optical signals and image signals.

2. The multifunctional visual eustachian tube bronchoscope according to claim 1, characterized in that, The function switching button group includes a first button, a second button, a third button, and a fourth button. The first button is used to switch the imaging mode to a linked color imaging mode, the second button is used to switch the imaging mode to a blue laser imaging mode, the third button is used to switch the imaging mode to an autofluorescence imaging mode, and the fourth button is used to switch the imaging mode to a near-infrared spectral imaging mode.

3. The multifunctional visual eustachian tube bronchoscope according to claim 1, characterized in that, The connection component includes a beam guide for transmitting 395-475nm blue laser light and 700-900nm near-infrared light.

4. The multifunctional visual eustachian tube bronchoscope according to claim 1, characterized in that, The operating handle also includes a first interface, a second interface, and a third interface. The first interface is connected to the second interface, and the third interface is not connected to the first interface or the second interface. The first interface is used for suctioning secretions from the Eustachian tube or pushing drugs, the second interface is used for the entry and exit of diagnostic and therapeutic instruments, and the third interface is used for injecting dilating media.

5. The multifunctional visual eustachian tube bronchoscope according to claim 4, characterized in that, The insertion assembly further includes a suction and injection channel, a device inlet and outlet channel, and an expansion medium channel. The suction and injection channel is connected to the first interface. The device inlet and outlet channel includes a first end and a second end. The first end of the device inlet and outlet channel is connected to the second interface, and the second end is connected to the device outlet. The expansion medium channel includes a first end and a second end. The first end of the expansion medium channel is connected to the third interface, and the second end is connected to the hollow expandable balloon.

6. The multifunctional visual eustachian tube bronchoscope according to claim 1, characterized in that, The first interface, the second interface, and the third interface can all be blocked individually, or the first interface and the second interface can be blocked simultaneously, or the first interface and the third interface can be blocked simultaneously, or the second interface and the third interface can be blocked simultaneously, or the first interface, the second interface, and the third interface can be blocked simultaneously.

7. A diagnostic system for eustachian tube lesions, characterized in that, The device includes an imaging device, a laser light source host, and a multifunctional visual Eustachian tube fiberoptic bronchoscope as described in any one of claims 1-6. The imaging device is communicatively connected to the laser light source host, and the laser light source host is communicatively connected to the connecting component. The imaging device is used to display images under different imaging modes, and the laser light source host is connected to the beam guide and is used to provide a light source.

8. A method for diagnosing eustachian tube lesions, characterized in that, The method for diagnosing eustachian tube lesions using the eustachian tube lesion diagnostic system as described in claim 7 includes: Obtain the lighting source generated by the laser source host. Based on the aforementioned illumination source and beam guide, the insertion component is examined for Eustachian tube insertion, and white light imaging data of the Eustachian tube mucosa is obtained. Based on the white light imaging data of the eustachian tube mucosa, lesion identification is performed to obtain the eustachian tube lesion results; Based on the results of the eustachian tube lesions, the eustachian tube detection mode is switched to obtain the type of eustachian tube mucosal lesion. Based on the type of eustachian tube mucosal lesion and the first interface, drug delivery is performed.

9. The method according to claim 8, characterized in that, The eustachian tube lesion results include local structural abnormalities in the eustachian tube; Based on the results of the Eustachian tube lesions, the Eustachian tube detection mode is switched to obtain the type of Eustachian tube mucosal lesion, including: Based on the aforementioned local structural abnormalities in the Eustachian tube and the linked color imaging mode, a screening of the Eustachian tube area is performed to obtain suspicious lesion areas; Based on blue laser imaging, the suspected lesion area is analyzed to obtain the type of lesion in the Eustachian tube mucosa.

10. The method according to claim 8, characterized in that, The eustachian tube lesions included diffuse changes in the eustachian tube; Based on the results of the Eustachian tube lesions, the Eustachian tube detection mode is switched to obtain the type of Eustachian tube mucosal lesion, including: Based on the diffuse changes in the Eustachian tube and the near-infrared spectral imaging mode, hemoglobin levels were detected to obtain hemoglobin fluctuation characteristics. Based on the diffuse changes in the Eustachian tube and the autofluorescence imaging pattern, Eustachian tube edema is identified to obtain the characteristics of Eustachian tube mucosal edema. Based on the hemoglobin fluctuation characteristics and the edema characteristics of the eustachian tube mucosa, the lesion type was analyzed to obtain the eustachian tube mucosal lesion type.

Images