Intelligent pre-examination triage system oriented to cross-language medical tasks and use method of intelligent pre-examination triage system

Abstract

The invention provides a cross-language medical task-oriented intelligent pre-examination triage system and a use method thereof, and relates to the technical field of intelligent pre-examination triage. The system comprises an intelligent terminal, a cloud service platform and a medical management terminal, and the intelligent terminal adopts portable and durable industrial-grade hardware and supports multi-mode interaction of a multi-language interface, graphics, voice and the like; an intelligent triage engine based on an authoritative medical knowledge graph is built in the cloud service platform, so that multiple rounds of intelligent inquiry and accurate triage decisions can be realized; and the medical management end provides background data management and reception support. The system realizes cross-language barrier-free communication, paperless operation in the whole process, patient privacy protection and improvement of triage efficiency and accuracy by combining innovative designs such as offline work, multi-terminal synchronization, medical information anonymization and two-dimensional code encryption transmission through a standardized process of guiding, interaction, intelligent inquiry, triage decision-making, result output and reception.

Description

Technical Field

[0001] This invention belongs to the field of intelligent pre-screening and triage technology, and more specifically, it relates to an intelligent pre-screening and triage system for cross-linguistic medical tasks and its usage method. Background Technology

[0002] As the main body of medical services, the maritime hospital has multiple departments such as the pre-examination and triage group and the internal medicine and surgery group. Among them, the pre-examination and triage work is the first link of medical services, which undertakes the core responsibility of communicating with patients about their conditions, making preliminary judgments on their needs and triaging them to the corresponding departments. It is of great significance to ensure the orderly and efficient development of medical services.

[0003] However, the existing pre-screening and triage model for maritime hospitals faces many prominent problems, seriously affecting service quality and efficiency:

[0004] The staffing of medical personnel is tight: In each "Harmonious Mission" mission, the pre-examination and triage team needs to be equipped with 5-6 doctors and 6-8 nurses. When necessary, personnel from other departments need to be drawn to provide support. This team accounts for about one-tenth of the total number of staff in the maritime hospital, which puts great pressure on the deployment of mission personnel.

[0005] Significant language barriers exist: Taking the "Harmony Mission 2025" as an example, the mission visited 10 countries and involved multiple languages ​​such as Spanish, Portuguese, and English. However, very few medical staff are proficient in these languages, and professional translators have limited knowledge of professional medical terminology, which can easily lead to translation errors, thereby prolonging triage time or causing misdiagnosis.

[0006] Serious consumption and waste of materials: In order to ensure the order of triage, a large number of pre-examination triage forms, name tags, department signs and other materials need to be printed during the task preparation stage, which consumes a lot of time and money. In addition, some materials cannot be reused because they are printed with special symbols, resulting in waste of resources.

[0007] Insufficient standardization: Differences in the knowledge level and mastery of triage details among different medical staff and translators make it difficult to guarantee the accuracy and fairness of triage;

[0008] Inadequate protection of patient privacy: During human translation, patients need to discuss their condition loudly in public, which not only violates their privacy but may also make them uncomfortable.

[0009] In summary, the existing triage and screening model cannot comprehensively address the multi-dimensional needs such as cross-language communication, high efficiency, standardization, and privacy protection. There is an urgent need for an intelligent and targeted solution to adapt to the special scenarios of overseas humanitarian medical services. Summary of the Invention

[0010] To address the aforementioned technical problems, this invention provides an intelligent pre-screening and triage system and its usage method for cross-lingual medical missions. This system solves the comprehensive technical problems in pre-screening and triage during overseas cross-lingual medical missions such as the "Harmonious Mission," including language communication barriers, staff shortages, significant waste of resources, insufficient standardization and accuracy of triage, and lack of patient privacy protection.

[0011] The intelligent pre-screening and triage system for cross-linguistic medical tasks includes intelligent terminals, cloud service platforms, and medical management terminals, which interact with each other through a communication network.

[0012] The smart terminal is deployed in the pre-examination and triage area, the cloud service platform has a built-in smart triage engine, and the medical management terminal is used for back-end medical data management and patient reception support.

[0013] The smart terminal includes a hardware module and a software module. The hardware module is a portable, waterproof, dustproof, and high-temperature resistant industrial-grade touch screen tablet or self-service terminal.

[0014] The software module supports multilingual interfaces and multimodal interaction functions. When the multilingual interface is started, the user can select their native language. The multimodal interaction includes graphical symptom selection, icon-based symptom description, voice input and recognition, and voice synthesis.

[0015] The intelligent triage engine is built on an authoritative medical knowledge graph and is used to generate standardized and intelligent triage suggestions based on the information input by the patient.

[0016] The system enables barrier-free cross-language communication, patient privacy protection, and paperless operation through human-computer interaction.

[0017] Preferably, the hardware module of the smart terminal has touch response capability that resists strong outdoor light interference, and a battery life of not less than 8 hours, making it suitable for complex usage scenarios such as hospital ships at sea and overseas open-air pre-examination and triage.

[0018] Preferably, the multilingual interface of the software module supports at least three foreign languages ​​such as English, Spanish, Portuguese, and French, as well as Chinese. The multimodal interaction also includes text input and graphic interaction modes, and the graphic interaction mode provides a human body contour map for users to locate uncomfortable parts.

[0019] Preferably, the intelligent triage engine has a multi-round follow-up questioning function, which can perform correlation analysis on the symptom information initially input by the patient based on the medical knowledge graph, and initiate targeted follow-up questions to the patient through the intelligent terminal to gradually and accurately match the corresponding medical department.

[0020] Preferably, the system further includes an information security module, which includes a medical information anonymization processing unit and a QR code encryption transmission unit; the anonymization processing unit performs desensitization processing on the patient's personal information, and the QR code encryption transmission unit is used to generate an encrypted QR code receipt containing the department visited, the visit number, and the department's location information.

[0021] Another technical problem this invention aims to solve is to provide a method for using an intelligent pre-screening and triage system for cross-lingual medical tasks, comprising the following steps:

[0022] S1: Guide patients to the smart terminal, where volunteers or medical staff will assist in activating the system;

[0023] S2: Patients select their native language on the welcome screen of the smart terminal, and then enter the personal information input screen to complete the input of their name, gender, date of birth, and nationality.

[0024] S3: The smart terminal displays a text mode and graphic mode selection interface, and patients can select the corresponding triage mode according to their own situation;

[0025] S4: Patients input their symptoms through the selected triage mode;

[0026] S5: The intelligent triage engine of the cloud service platform analyzes and processes symptom information based on an authoritative medical knowledge graph to generate triage results;

[0027] S6: The smart terminal outputs the triage results and queue number in the patient's native language in text and voice format, and prints an encrypted QR code receipt;

[0028] S7: Patients can go to the corresponding department with the QR code slip. Doctors will then retrieve the patient's de-identified information through the medical management system to begin the consultation.

[0029] Preferably, in step S3, the text mode is suitable for people with knowledge background or a clear preference for a particular department, and the smart terminal displays the treatment scope information of each department on the main platform, allowing patients to directly select the target department; the graphic mode is suitable for people who do not know the department they need or do not have relevant knowledge background, and they enter the graphic interaction interface.

[0030] Preferably, in step S4, the graphic interaction interface displays a neutral or gender-selectable front and back outline of the human body. The patient can click or touch the uncomfortable area on the outline to trigger the smart terminal to pop up a visual icon of the corresponding symptom. The patient can then select the icon that best matches their own situation to complete the symptom input.

[0031] Preferably, in step S4, in the text mode, patients can directly select the name of the target department by reading the department's scope of treatment information. The intelligent triage engine verifies the matching degree between the selected department and the patient's potential needs. If the matching degree is lower than a preset threshold, supplementary questions are initiated.

[0032] Preferably, in step S5, the triage result includes the recommended department, the location of the department, and the estimated waiting time; in step S7, the doctor scans the patient's encrypted QR code through the medical management terminal, decrypts it to obtain the patient's symptom description and anonymized personal information, and conducts targeted consultation.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] Completely eliminate language barriers: Through the multilingual interface of smart terminals (supporting multiple languages ​​such as English, Spanish, and Portuguese) and multimodal interaction functions (graphical symptom selection, voice input and recognition, and voice synthesis), patients can communicate seamlessly with the system, avoiding triage delays or errors caused by language barriers.

[0035] Significantly improve triage efficiency: The standardized interactive process and the rapid calculation of the intelligent triage engine significantly shorten the time of a single pre-examination and triage, speed up patient flow, and alleviate the pressure on medical services;

[0036] Optimize human resource allocation: reduce the need for medical staff and translators in the pre-screening and triage team, so that more medical resources can be directed toward the main platform's diagnosis and treatment process, thereby improving the overall capacity of medical services;

[0037] Improve the accuracy and fairness of triage: The intelligent triage engine, built on an authoritative medical knowledge graph, provides standardized and intelligent triage suggestions, avoiding triage deviations caused by differences in human operation, and ensuring that all patients receive fair and accurate triage services;

[0038] Fully protect patient privacy: By replacing human translation with human-computer interaction mode, patients can avoid discussing their condition in public, effectively protecting their privacy and improving their comfort during medical visits;

[0039] Significantly reduces material consumption: It achieves paperless operation throughout the process, eliminating the need to print a large number of pre-examination triage forms, name tags and other disposable materials, while avoiding the limitations of reusing special identification materials, thus saving time and money.

[0040] Adaptable to complex application scenarios: The lightweight and rapidly deployable system architecture supports offline working mode, multi-terminal synchronization and low power consumption design, and can adapt to complex usage environments such as hospital ships at sea and overseas open-air triage points, with strong environmental adaptability.

[0041] It has multiple benefits: in terms of social benefits, it enhances the image and efficiency of China's overseas medical services and demonstrates scientific and humanistic care; in terms of economic benefits, it can be commercially applied to international clinics, airport hospitals, overseas rescue and other scenarios, expanding the application boundaries; in terms of strategic benefits, it forms a standardized solution, becomes the standard equipment for the "Harmonious Mission" and significantly enhances mission execution capabilities and international influence. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the system flow of the present invention. Detailed Implementation

[0043] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0044] Please see Figure 1 This invention provides an intelligent pre-screening and triage system for cross-language medical tasks and its usage method. This specific embodiment combines the actual scenario of overseas humanitarian medical services, and elaborates in detail on the system's hardware selection, software development, functional implementation logic, operation process and security mechanism, to ensure that technical personnel can complete the system deployment, debugging and application based on this embodiment, and achieve the core objectives of eliminating language barriers, improving triage efficiency and protecting patient privacy.

[0045] System overall architecture:

[0046] This system adopts a distributed architecture consisting of smart terminals, a cloud service platform, and a medical management terminal. These three components interact via a hybrid communication mode combining wired networks, wireless networks, and offline backup, making it suitable for complex environments such as hospital ships at sea and overseas open-air triage points. The specific architectural relationships are as follows:

[0047] Hierarchical relationship: The smart terminal is the front-end interaction layer, directly facing patients; the cloud service platform is the core logic layer, responsible for triage algorithm calculation, data storage and synchronization; the medical management terminal is the back-end management layer, providing medical staff with data retrieval, queue management and system maintenance.

[0048] Communication method:

[0049] Online mode: Smart terminals communicate with the cloud service platform via 5G (supporting mainstream overseas frequency bands) and Wi-Fi 6 (IEEE802.11ax), with a transmission rate of ≥100Mbps and a latency of ≤50ms;

[0050] Offline mode: Core data (simplified version of medical knowledge graph, multi-language pack, operation logic) is cached locally on the smart terminal. It runs independently when the network is disconnected and automatically synchronizes data to the cloud when the network is connected.

[0051] Emergency communication: Supports Bluetooth 5.0 short-range networking to enable data exchange between multiple smart terminals (such as sharing patient queues), adapting to extreme scenarios without network coverage.

[0052] Core components:

[0053] (a) Hardware of smart terminals:

[0054] The smart terminals include two types: portable industrial-grade tablets and fixed self-service terminals, which are adapted to mobile triage points and fixed triage areas, respectively. The specific parameters are as follows:

[0055] Portable industrial-grade tablet:

[0056] Model selection: Advantech TPC-7102T (or equivalent industrial flat panel).

[0057] Protective performance: Waterproof rating IP67, dustproof rating IP6X, high temperature resistance range -20℃~60℃, low temperature resistance -30℃~0℃, meeting the requirements of high salt spray at sea and high / low temperature outdoor environments;

[0058] Display and Touch: 10.1-inch IPS capacitive screen with a resolution of 1920×1200, supports multi-touch (5 points), resists strong light interference (brightness ≥1000cd / ㎡), and can be operated while wearing gloves;

[0059] Battery life and power supply: Built-in 8000mAh lithium polymer battery, with a battery life of ≥10 hours, supports QC3.0 fast charging (fully charged in 2 hours), and is equipped with a Type-C interface (supports PD protocol).

[0060] Additional modules: Built-in HD camera (13 megapixels, supports QR code scanning), speaker (volume ≥85dB, suitable for noisy environments), microphone (noise-canceling, supports long-distance voice input).

[0061] Fixed self-service terminals:

[0062] Installation location: both sides of the entrance to the pre-screening and triage area, at a height of 1.3~1.5m (suitable for adults and children to operate).

[0063] Hardware structure: Metal waterproof shell (IP65 protection rating), built-in 15.6-inch touch screen, thermal printer (supports QR code receipt printing, paper width 58mm), ID card / passport scanning module (supports overseas passport OCR recognition).

[0064] Power supply: AC100~240V wide voltage input, built-in backup battery (lasting ≥2 hours) to prevent sudden power outages.

[0065] (ii) Software of smart terminals:

[0066] The software is developed based on Android 12 (industrial-grade customized version), supports offline operation, and its core functional modules are as follows:

[0067] Multilingual interface module:

[0068] Supported languages: 18 commonly used languages ​​including Chinese (Simplified / Traditional), English, Spanish, Portuguese, French, Arabic, Russian, and German;

[0069] Language pack design: Local storage for basic language packs (10 core languages, occupying ≤500MB of storage space), cloud storage for extended language packs, which users can download as needed;

[0070] Switching mechanism: The welcome screen displays 6 high-frequency languages ​​by default (based on the preset languages ​​of the countries visited in the "Harmonious Mission"). Other languages ​​can be selected through the "search box + drop-down menu". After selection, the text, icon descriptions and voice prompts of the entire screen will switch instantly.

[0071] Multimodal interaction module:

[0072] Graphical symptom selection (core of graphic and textual mode):

[0073] Human body outline: The vector graphic format is used (supports infinite scaling without loss of quality). By default, it displays the front and back outlines of a neutral human body. There is a "Male / Female / Neutral" switch button at the top. After switching, the outline is matched with the corresponding physiological characteristics (such as male shoulder width, female body shape).

[0074] Symptom icon library: categorized by body part (12 parts including head, neck, chest, abdomen, limbs, etc.), each part corresponds to 5-10 common symptom icons (e.g., head corresponds to headache, dizziness, tinnitus, etc.). The icons adopt internationally recognized medical symbols and have a bright color scheme (white background with colored icons). The symptom name in the user's selected language is marked below.

[0075] Interaction logic: When a user clicks on a part of the outline (such as the chest), the system will pop up a floating window at the clicked location (containing the symptom icons for that part), which supports multiple selections (up to 5 symptoms). Clicking "Cancel" will remove the selected symptoms.

[0076] Voice input and recognition:

[0077] It uses Baidu AI Cloud's overseas version speech recognition API (supports 18 target languages), with a recognition accuracy of ≥95% and supports continuous speech input (up to 60 seconds).

[0078] Noise reduction processing: Enable microphone noise reduction algorithm (suppress ambient noise ≤60dB) to adapt to noisy scenes in the triage area;

[0079] Speech synthesis: It adopts the overseas version of iFlytek's TTS engine, with a natural voice tone (supporting male / female / neutral voice tone selection) and adjustable speech rate (default medium speech rate, ±20% adjustment range).

[0080] Text input: Supports Chinese and English keyboards and handwriting input (recognition accuracy ≥92%), suitable for users who are not familiar with Pinyin / letters.

[0081] (III) Cloud Service Platform:

[0082] The cloud service platform is deployed on Alibaba Cloud's overseas nodes (close to the task region to reduce latency), and its core is an intelligent triage engine, which is implemented as follows:

[0083] Medical knowledge graph construction:

[0084] Data source: Integrating authoritative data from the International Classification of Diseases (ICD-11), the National Health Commission's Clinical Practice Guidelines, WHO Overseas Medical Service Standards, and military hospital ship treatment guidelines;

[0085] The graph structure includes four core entities: "symptom-disease-department-treatment items" and three relationships: "symptom-associated disease", "disease-associated department", and "symptom-required examination". It contains more than 2,000 symptoms, more than 1,500 diseases, more than 30 departments, and more than 800 treatment items.

[0086] Update mechanism: The knowledge graph update package (including new disease and symptom association rules) is pushed to the cloud every month. It is temporarily stored when the smart terminal is offline and automatically updated when connected to the Internet.

[0087] Intelligent triage engine algorithm:

[0088] Core algorithm: Based on the weighted Naive Bayes algorithm, combined with the association rules of the knowledge graph, the matching degree between symptoms and departments is calculated;

[0089] The logic of multiple rounds of follow-up questioning:

[0090] Triggering conditions: When the symptoms entered by the user are vague (such as only selecting "abdominal discomfort") or match multiple departments (matching degree difference ≤10%), multiple rounds of follow-up questions will be initiated;

[0091] Example of follow-up questions: When a user selects "abdominal discomfort", the system asks follow-up questions such as "Is it accompanied by diarrhea?", "Is there nausea and vomiting?", and "Is the pain type stabbing / bloating / cramping?". Follow-up questions are sorted by priority (core symptoms take precedence).

[0092] Triage decision: Based on the symptoms and follow-up questions input by the user, calculate the matching score (out of 100) for each department and recommend the department with the highest score (score ≥ 70 points is directly recommended; 50~69 points recommend 2 candidate departments; < 50 points recommend general practice clinic).

[0093] (iv) Medical Management Terminal:

[0094] The medical management system adopts a B / S architecture (supporting browsers such as Chrome and Firefox) and is deployed on the doctor's workstation on the hospital ship. Its specific functions are as follows:

[0095] Patient cohort management:

[0096] The patient list is displayed by department, including anonymous ID, consultation number, symptom summary, estimated waiting time, and triage time;

[0097] It supports status marking of "received / pending / cancelled appointment", and doctors can manually update the status.

[0098] Data query and statistics:

[0099] It supports querying triage data by time (day / week / month), nationality, and department, and generates statistical reports (such as triage accuracy rate, number of patients received by each department, and average triage time).

[0100] It supports exporting Excel reports for task summarization.

[0101] System maintenance:

[0102] Knowledge graph update entry: Medical staff can manually upload urgently updated medical data (such as association rules for symptoms of emerging infectious diseases);

[0103] Terminal Management: Displays the online status, battery level, and fault alarms (such as printer paper shortage or network disconnection) of all smart terminals, and supports remote terminal restart.

[0104] Patient support:

[0105] After scanning the patient's QR code, the system displays the patient's anonymous information, symptom details (including location click records and symptom icon selection records in image and text mode), and triage suggestions.

[0106] Doctors can add supplementary diagnostic information, which is then synchronized to the cloud to optimize the triage algorithm.

[0107] IV. Windows-based software functionality:

[0108] (a) Window 1: Welcome screen

[0109] Background design: High-resolution real-world image of the "Peace Ark" hospital ship (1920×1200 resolution), with a semi-transparent world map overlaid at the bottom (marking the countries visited by the mission).

[0110] Language selection bar: Located at the bottom of the interface, it displays 6 frequently used languages ​​horizontally (flag icon + language name), and there is a "More Languages" button on the right. Clicking it will bring up a drop-down menu (containing 12 extended languages).

[0111] Interactive feedback: After the user clicks on the language, a loading animation is displayed on the screen (3 seconds), and a welcome voice is played (e.g., "Welcome to the Intelligent Triage System. Please enter your personal information.").

[0112] (ii) Window 2: Personal Information Input Interface

[0113] Form design:

[0114] Name: Input box (supports Chinese and English, maximum 20 characters), prompt text "Please enter your name";

[0115] Gender: Radio button (Male / Female / Other), "Neutral" is selected by default;

[0116] Date of birth: Calendar control (supports selection from 1900 to present), with the prompt "Please select your date of birth";

[0117] Nationality: Drop-down menu (contains all UN member states, arranged alphabetically, supports quick location by entering nationality keywords in the search box);

[0118] Submit button: Located at the bottom of the screen, with the text "Next". Clicking it will verify the completeness of the information (if no name is entered, it will prompt "Please fill in your name information").

[0119] Privacy Notice: A small print notice appears at the top of the interface stating, "Your personal information will be anonymized and used only for triage services."

[0120] (III) Window 3: Mode Selection Interface

[0121] Layout design: left and right columns (each occupying 50% of the screen width), top title "Please select triage mode";

[0122] Text mode bar:

[0123] Icon: Vector graphic of a book and text (80×80px).

[0124] Title: "Text Mode";

[0125] Note: "Suitable for users who have a clear preference for a particular department or have a medical background" (font size 14px, color #666666).

[0126] Interaction: Click anywhere in the column to enter window four.

[0127] Image and text mode bar:

[0128] Icon: Vector image of human body outline (size 80×80px);

[0129] Title: "Image and Text Mode";

[0130] Note: "Suitable for users who are unsure which department to consult or who lack medical knowledge."

[0131] Interaction: Click anywhere in the column to enter window five.

[0132] (iv) Window 4: Text Mode Selection Interface

[0133] Department list design:

[0134] Arranged according to the categories of "Internal Medicine, Surgery, Specialty, Surgical Group, and Ward Group," each department includes:

[0135] Icons: Vector graphics specific to each department (e.g., Internal Medicine - Heart icon, Surgery - Scalpel icon).

[0136] Name: Department name in the user's selected language (font size 16px, color #333333).

[0137] Scope of services: Brief description (e.g., Internal Medicine: "Treatment of internal medicine diseases such as colds, hypertension, and heart disease", font size 12px, color #666666).

[0138] Search function: A search box is located at the top. Enter departmental keywords (such as "cardiac") to quickly filter.

[0139] Interaction logic:

[0140] Clicking on the department name will bring up a confirmation window ("Are you sure you want to select Department XX? This department mainly treats XX diseases").

[0141] Click "Confirm" to proceed to window six; click "Cancel" to return to the department list;

[0142] If the system detects that the selected department does not match the user's potential needs (e.g., the user's country of origin has a high incidence of infectious diseases, but the user chooses surgery), a prompt window will pop up ("Based on your nationality and regional disease characteristics, would you like to consider XX department?"), providing two options: "Continue to select" or "Switch department".

[0143] (V) Window 5: Graphic and Text Mode Interface

[0144] Main Design:

[0145] Human body outline: Occupies 60% of the central area of ​​the interface, supports two-finger zoom (zoom ratio 0.8~1.5x) and single-finger pan;

[0146] Gender switching: There are three buttons at the top: "Male / Female / Neutral" ("Neutral" is selected by default). Clicking the button will instantly switch the outline image.

[0147] Symptom Submission Button: A "Submit Symptoms" button is located at the bottom (it is gray by default and turns blue when at least one symptom is selected).

[0148] Symptom selection interaction:

[0149] Clicking on a part of the outline (such as the head) will bring up a floating window (200×150px) at the clicked location, containing 5 to 10 common symptom icons for that part (such as headache, dizziness, tinnitus, etc.).

[0150] Clicking the symptom icon will change the icon to a selected state (the border turns red and the background turns light blue), and multiple selections are supported;

[0151] Click the selected icon again to deselect it; click outside the floating window to close the floating window.

[0152] After selecting a symptom, a list of selected symptoms (icon + name) will be displayed on the right side of the interface. Deleted symptoms can be done by clicking the "×" button on the right side of the list item.

[0153] (vi) Window 6: Result Generation Interface

[0154] Results display area:

[0155] Recommended Department: Font size 20px, color #2E86AB, bold (e.g., "Recommended Department: Internal Medicine");

[0156] Department Location: Attached is a simplified map of the hospital ship's interior (marking the area where the department is located, such as "Decker East Internal Medicine Treatment Area"). The map supports zooming.

[0157] Patient registration number: font size 18px, color #E63946 (e.g., "Patient registration number: No.15");

[0158] Estimated waiting time: Font size 16px, color #6A994E (e.g., "Estimated waiting time: 25 minutes").

[0159] Operation buttons:

[0160] Print Receipt: Click the button on the left (icon + text "Print Receipt") to start the printer and print a QR code receipt (the receipt includes a QR code, visit number, department name, department location, and is valid for 30 minutes).

[0161] Re-triage: Click the button on the right (icon + text "Re-triage") to return to window three;

[0162] Voice broadcast: After printing the receipt, the system will automatically play the result audio (e.g., in Spanish: "Your triage result has been generated. Your appointment number is No. 15. Internal Medicine is recommended. It is located on the east side of the 3rd floor. The estimated wait time is 25 minutes. Please present your printed receipt for your appointment.").

[0163] V. Instructions for use:

[0164] (a) S1: Guiding Phase:

[0165] Staffing: Two volunteers (who know basic English and the core language of the country they are visiting) + one medical staff member will be stationed at the entrance of the pre-screening and triage area;

[0166] Instructional process:

[0167] Volunteers proactively ask patients, "Do you need help using the smart triage system?" and provide full assistance to the elderly, children, or users with mobility issues.

[0168] Guide the user to the smart terminal and assist in starting the system (press the terminal power button and wait 3 seconds for startup to complete).

[0169] For users unfamiliar with electronic devices, briefly explain the operation process ("First select the language, then fill in the information, then select the triage mode, and finally get the results").

[0170] (II) S2: Interaction Phase (Language Selection + Personal Information Input):

[0171] Language selection:

[0172] Volunteers assist users in selecting their native language on the welcome screen (e.g., if the user is a Portuguese speaker, guide them to click the Portuguese flag + "Português").

[0173] If users are unsure about the language type, volunteers can help them make a choice through simple conversation (such as asking "Which language is spoken?" in English).

[0174] Personal information input:

[0175] Name Input: Assists illiterate users with voice input (click the microphone icon on the right side of the input box, say your name, and the system will automatically recognize it).

[0176] Nationality selection: If the user is unsure of their nationality, volunteers can assist in finding it in the drop-down menu based on the user's passport or physical characteristics.

[0177] After entering the information, please click the "Next" button to enter the mode selection interface.

[0178] (III) S3: Mode Selection Phase:

[0179] Recommended mode:

[0180] For younger users who can clearly express their medical needs, we recommend text mode ("If you know which department you need to go to, you can choose text mode to view the department information directly").

[0181] For elderly users, users who do not speak the language, or users who are unsure of which department to go to, we recommend the image and text mode ("If you do not know which department to go to, you can choose the image and text mode and click on the area where you feel uncomfortable").

[0182] Mode switching: After selecting a mode, if the user finds it unsuitable during operation (e.g., unable to understand the department description in text mode), they can return to the mode selection interface and reselect using the "back" button at the top of the interface.

[0183] (iv) S4: Symptom / Department Input Stage:

[0184] Text mode operation:

[0185] Assist users in browsing the list of departments and explain the scope of treatment of each department (such as explaining in simple English that "internal medicine treats diseases such as colds and hypertension, and surgery treats diseases such as trauma and fractures").

[0186] If the user is unsure, guide them to view the detailed description of the department (a window that pops up when the department name is clicked) before making a selection.

[0187] Operation in graphic and text mode:

[0188] Assist users in switching genders (e.g., if the user is female, guide them to click the "female" button);

[0189] Ask the user "Where does it hurt?" and guide the user to click on the corresponding part of the outline (e.g., if the user says "headache", guide them to click on the head).

[0190] Assist users in selecting the most relevant symptom from the pop-up symptom icons (e.g., if a user says "dizziness", guide them to click the "dizziness" icon);

[0191] After making your selection, please click the "Submit Symptoms" button.

[0192] (V) S5: Triage Decision Stage:

[0193] Multiple rounds of follow-up questioning and assistance:

[0194] If the system initiates multiple rounds of follow-up questions (e.g., if the user selects "abdominal discomfort," the system asks "is it accompanied by diarrhea?"), volunteers use the user's native language to help convey the questions and translate the user's answer into a system action (e.g., if the user answers "yes," guide them to click the "diarrhea" icon).

[0195] After the follow-up questions are completed, the system will automatically proceed to the triage decision-making stage (loading animation 3-5 seconds).

[0196] (vi) S6: Reception stage:

[0197] Receipt printing and explanation:

[0198] Assist users in clicking the "Print Receipt" button to obtain a QR code receipt;

[0199] Briefly explain the information on the receipt in the user's native language ("This is your medical receipt. It shows your medical appointment number and the location of the department. You can go to the internal medicine department on the east side of the 3rd floor. Your queue number is 15").

[0200] Inform the user of the validity period of the voucher ("The voucher is valid for 30 minutes. Please go to the department as soon as possible").

[0201] Department guidance: Volunteers guide users to the corresponding treatment area based on the department location on the slip (e.g., "Please follow me, I will take you to the internal medicine department on the 3rd floor").

[0202] Doctor's consultation:

[0203] Doctors use the scanner on the medical management terminal to scan the QR code on the user's receipt, and the system displays the user's anonymous information, symptom details, and triage suggestions;

[0204] Doctors use the information from the system to conduct consultations (such as "You previously selected headache and dizziness, how long has this been going on?") and record the consultation results in the system.

[0205] VI. Information Security and Privacy Protection:

[0206] (a) Anonymization:

[0207] Personal information anonymization:

[0208] Name: Stored as "name + 4 random numbers" (e.g., if the user enters "Maria", it will be stored as "Maria8723"). The full name will only be displayed on smart terminals, while the cloud and medical management terminals will only display the anonymized ID.

[0209] Date of birth: Stored as "year and month" (e.g., if the user selects May 1990, it is stored as "1990-05"), hiding the specific date;

[0210] We do not collect sensitive information: We do not ask you to enter your ID card number, passport number, bank card number, or other private data.

[0211] (ii) QR code encrypted transmission:

[0212] Encryption Algorithm: The AES-256 symmetric encryption algorithm is used to encrypt the core information contained in the QR code (anonymous ID, department code, visit number, and validity period).

[0213] Dynamically generated: Each QR code corresponds to only one user, is valid for 30 minutes, and automatically expires after that time to prevent unauthorized use.

[0214] Decryption permission: Only the medical management terminal has decryption permission. User information can only be obtained after scanning the QR code, and the information is only used for receiving patients and cannot be exported or forwarded.

[0215] (III) Data storage security:

[0216] Cloud storage: User data is stored on Alibaba Cloud's overseas nodes, using encrypted storage (AES-128 encryption), and supports data backup (daily automatic backup, retaining 7 days of backup data).

[0217] Local storage: The smart terminal only caches the user's current triage data. After the triage is completed (when the user is admitted or the receipt expires), the local cache is automatically deleted to prevent data leakage.

[0218] Access control: The medical management terminal uses account password + verification code login (the verification code is sent to the mobile phone of medical staff). Different accounts are set with different permissions (e.g., ordinary doctors can only view patient information, while administrators can perform system maintenance).

[0219] Specific implementation:

[0220] (a) Lightweight and rapidly deployable architecture:

[0221] Offline working mode:

[0222] The core data is cached locally on the smart terminal: a simplified version of the medical knowledge graph (containing 1000+ common symptoms, 800+ diseases, 20+ core departments), 10 core language packs, all window interfaces and interaction logic, occupying ≤2GB of storage space;

[0223] Offline data synchronization: After connecting to the network, the smart terminal automatically synchronizes the offline triage data (anonymous ID, symptoms, triage results) to the cloud. After comparing the data in the cloud, it updates the medical management terminal.

[0224] Deployment time: Deploying a single smart terminal takes only 10 minutes (powering on, connecting to the network, and downloading the update package), and 10 terminals can be deployed within 2 hours.

[0225] Multi-terminal synchronization mechanism:

[0226] Local Area Network (LAN) Setup: Multiple smart terminals can form a LAN via Wi-Fi 6 (no external network required) to share patient queue information (e.g., if a user on terminal A is triaged to the internal medicine department, the medical management terminal on terminal B can view the user's appointment number in real time).

[0227] Data consistency: A distributed lock mechanism is used to prevent multiple terminals from operating on the same user data at the same time, ensuring data synchronization without conflicts.

[0228] Low power consumption design:

[0229] Hardware-wise: Select low-power chips (such as the Snapdragon 660 processor, with standby power consumption ≤5mA) and use energy-saving displays (IPS low-power mode, with automatic brightness adjustment).

[0230] Software level:

[0231] Inactive Sleep Mode: After 3 minutes of inactivity, the smart terminal will automatically enter sleep mode (the screen dims to 20% of its brightness, the voice module is turned off, and only the touch wake-up function is retained).

[0232] Background process management: Close non-core background processes (such as map updates, language pack downloads, etc.), and retain only the core triage function;

[0233] Charging optimization: While supporting fast charging, it avoids overcharging (automatically switches to trickle charging after the battery is fully charged).

[0234] (II) Multimodal interaction logic based on medical knowledge graph:

[0235] Multimodal data fusion:

[0236] Voice input and graphic selection complement each other: Users can input symptoms by voice (such as "I have a cough and fever"), and the system will automatically match the corresponding symptom icons for the user to confirm; users can also select symptoms by graphics and then use voice to supplement the description (such as selecting the "headache" icon and then inputting "I have had a headache for 3 days").

[0237] Data Priority: The system prioritizes the graphical symptoms explicitly selected by the user, and then combines them with supplementary information from voice input to make triage decisions.

[0238] Intelligent triggering of multiple rounds of follow-up questions:

[0239] Association rules based on knowledge graphs: If a user selects "fever" as a symptom, the knowledge graph associates "fever" with questions such as "whether there is a cough", "whether there is fatigue", and "whether the body temperature exceeds 38.5℃". The system sorts the questions according to the strength of association and initiates follow-up questions in sequence.

[0240] Follow-up questions will terminate when the user provides clear answers to all core questions or selects "no other symptoms".

[0241] (III) Anonymization of medical information and encrypted transmission via QR codes:

[0242] Anonymous ID generation: Anonymous IDs are generated using "timestamp + random number" (e.g., "202506151030+8723", where the timestamp is accurate to the minute and the random number is 4 digits), ensuring that each user's anonymous ID is unique;

[0243] QR code is dynamically updated: a new QR code is generated for each triage visit and is not reused. The QR code contains validity information and cannot be decrypted after it expires.

[0244] Encrypted transmission: Data transmission between smart terminals and the cloud and medical management terminals uses the HTTPS protocol to prevent data from being intercepted or tampered with.

[0245] System testing and effect verification:

[0246] (a) Testing environment:

[0247] Hardware environment: Deploy 10 smart terminals (6 portable tablets + 4 fixed self-service terminals), 1 cloud server (Alibaba Cloud ECS instance: 4 cores, 8G memory, 500GB storage), and 5 medical management workstations;

[0248] Software environment: Android 12 industrial customized version, Chrome browser 90.0+, simplified version of medical knowledge graph;

[0249] Simulated scenario: A simulated mission involving visits to 10 countries, with 200 volunteers playing the roles of patients of different nationalities and ages (including users who speak English, Spanish, Portuguese, etc.).

[0250] (II) Test Indicators and Results:

[0251] Triage accuracy: Compared with manual triage results, the accuracy rate is ≥92% (of which the triage accuracy rate for common diseases is ≥95% and the triage accuracy rate for rare diseases is ≥88%).

[0252] Average triage time: ≤3 minutes / person (10 minutes / person for manual triage, improving efficiency by 70%).

[0253] Language communication satisfaction: The questionnaire survey shows that more than 90% of users believe that language communication is barrier-free;

[0254] Privacy protection satisfaction: Over 95% of users believe their privacy is effectively protected (no public discussion of their medical condition);

[0255] Material consumption: The entire process is paperless, saving more than 90% of the cost of materials such as pre-examination triage forms and name tags;

[0256] Offline operation stability: When the network is disconnected, the smart terminal can run continuously for 8 hours, the triage function is normal, and there is no data loss during synchronization.

[0257] System maintenance and updates:

[0258] (a) Routine maintenance:

[0259] Hardware maintenance: Check the battery level, protection status, and paper level of the smart terminal daily, and charge and refill the paper in a timely manner. Clean the screen (wipe with a waterproof cloth).

[0260] Software maintenance: Check for software updates (language packs, knowledge graphs) on smart terminals weekly and download and install them promptly; check for fault alarms on the medical management terminal and handle them promptly (such as terminal network disconnection, printer malfunction).

[0261] (ii) Update mechanism:

[0262] Knowledge graph updates: Monthly update packages are pushed via the cloud, containing new disease and symptom association rules, and automatically updated after smart terminals are connected to the network; in emergency situations (such as a sudden outbreak of infectious diseases), administrators can manually upload update packages through the medical management terminal;

[0263] Software version updates: Software version updates are released quarterly to optimize interaction logic and fix vulnerabilities. Smart terminals support online upgrades (no manual operation required).

[0264] This specific implementation details the hardware selection, software development, window design, operation process, and security mechanisms of an intelligent pre-screening and triage system for cross-language medical missions, fully covering the technical features of claims 1-10. It eliminates language barriers through "multilingual + multimodal interaction," improves triage accuracy based on an authoritative medical knowledge graph, protects privacy through anonymization and encrypted transmission, achieves paperless operation throughout the process to reduce material consumption, and is adaptable to the complex scenarios of overseas medical missions such as "Mission Harmony." The system is simple to deploy, easy to operate, and has low maintenance costs, making it a standard piece of equipment for "Mission Harmony" missions. It can also be extended to international clinics, airport hospitals, overseas rescue missions, and other scenarios, demonstrating significant social, economic, and strategic benefits.

[0265] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An intelligent pre-screening and triage system for cross-linguistic medical tasks, characterized in that, This includes smart terminals, cloud service platforms, and medical management terminals, all of which interact with each other through communication networks; The smart terminal is deployed in the pre-examination and triage area, the cloud service platform has a built-in smart triage engine, and the medical management terminal is used for back-end medical data management and patient reception support. The smart terminal includes a hardware module and a software module. The hardware module is a portable, waterproof, dustproof, and high-temperature resistant industrial-grade touch screen tablet or self-service terminal. The software module supports multilingual interfaces and multimodal interaction functions. When the multilingual interface is started, the user can select their native language. The multimodal interaction includes graphical symptom selection, icon-based symptom description, voice input and recognition, and voice synthesis. The intelligent triage engine is built on an authoritative medical knowledge graph and is used to generate standardized and intelligent triage suggestions based on the information input by the patient. The system enables barrier-free cross-language communication, patient privacy protection, and paperless operation through human-computer interaction.

2. The intelligent pre-screening and triage system for cross-lingual medical tasks according to claim 1, characterized in that, The hardware module of the smart terminal has touch response capability that resists strong outdoor light interference, and the battery life is no less than 8 hours, making it suitable for complex usage scenarios such as hospital ships at sea and overseas open-air pre-examination and triage.

3. The intelligent pre-screening and triage system for cross-lingual medical tasks according to claim 1, characterized in that, The software module's multilingual interface supports at least three foreign languages, including English, Spanish, Portuguese, and French, as well as Chinese. The multimodal interaction also includes text input and graphic interaction modes, with the graphic interaction mode providing a human body contour map for users to locate uncomfortable areas.

4. The intelligent pre-screening and triage system for cross-lingual medical tasks according to claim 1, characterized in that, The intelligent triage engine has a multi-round follow-up questioning function, which can perform correlation analysis on the patient's initial symptom information based on the medical knowledge graph, and initiate targeted follow-up questions to the patient through the intelligent terminal to gradually and accurately match the corresponding medical department.

5. The intelligent pre-screening and triage system for cross-lingual medical tasks according to claim 1, characterized in that, The system also includes an information security module, which comprises a medical information anonymization processing unit and a QR code encryption transmission unit. The anonymization processing unit desensitizes the patient's personal information, and the QR code encryption transmission unit generates an encrypted QR code voucher containing the department visited, the visit number, and the department's location information.

6. A method for using an intelligent pre-screening and triage system for cross-linguistic medical tasks, characterized in that: Applied to the system according to any one of claims 1-5, the method includes the following steps: S1: Guide patients to the smart terminal, where volunteers or medical staff will assist in activating the system; S2: Patients select their native language on the welcome screen of the smart terminal, and then enter the personal information input screen to complete the input of their name, gender, date of birth, and nationality. S3: The smart terminal displays a text mode and graphic mode selection interface, and patients can select the corresponding triage mode according to their own situation; S4: Patients input their symptoms through the selected triage mode; S5: The intelligent triage engine of the cloud service platform analyzes and processes symptom information based on an authoritative medical knowledge graph to generate triage results; S6: The smart terminal outputs the triage results and queue number in the patient's native language in text and voice format, and prints an encrypted QR code receipt; S7: Patients can go to the corresponding department with the QR code slip. Doctors will then retrieve the patient's de-identified information through the medical management system to begin the consultation.

7. The method of use according to claim 6, characterized in that, In step S3, the text mode is suitable for people with knowledge background or a clear preference for a particular department. The smart terminal displays the treatment scope information of each department on the main platform, allowing patients to directly select their target department. The graphic mode is suitable for people who are unsure of the department they wish to see or who lack relevant knowledge background, allowing them to enter the graphic interaction interface.

8. The method of use according to claim 7, characterized in that, In step S4, the graphic interaction interface displays a neutral or gender-selectable front and back outline of the human body. Patients can click or touch the uncomfortable area on the outline to trigger the smart terminal to pop up a visual icon of the corresponding symptom. Patients can select the icon that best matches their own situation to complete the symptom input.

9. The method of use according to claim 7, characterized in that, In step S4, in the text mode, patients can directly select the name of the target department by reading the department's scope of treatment information. The intelligent triage engine verifies the matching degree between the selected department and the patient's potential needs. If the matching degree is lower than a preset threshold, supplementary questions are initiated.

10. The method of use according to claim 6, characterized in that, In step S5, the triage results include the recommended department, the location of the department, and the estimated waiting time. In step S7, the doctor scans the patient's encrypted QR code through the medical management terminal, decrypts it to obtain the patient's symptom description and de-identified personal information, and conducts targeted consultation.

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