A method and system for oral care management of critically ill patients

Abstract

The application provides a critical patient oral care management method and system, and relates to the technical field of medical devices and intelligent nursing. The critical patient oral care management system comprises a multi-modal sensing unit, a central intelligent control unit, an integrated closed-loop spraying and sucking unit, a modular brush head assembly, a clinical data interaction management unit and a safety protection unit. The multi-modal sensing unit is used for collecting intraoral visual images and nursing process physical parameters, identifying nursing risk indicators, and transmitting data to the central intelligent control unit. The application solves the technical problems of traditional oral care, such as many blind areas, high risk of aspiration, insufficient mucosa protection, unquantifiable cleaning effect, untraceable nursing process, and weak infection prevention and control capability, and realizes efficient, safe, standardized and intelligent management of critical patient oral care.

Description

Technical Field

[0001] This invention relates to the field of medical devices and intelligent nursing technology, specifically to a method and system for oral care management of critically ill patients. Background Technology

[0002] Critically ill patients, especially those intubated via endotracheal intubation, comatose, or receiving mechanical ventilation, commonly experience swallowing dysfunction, complete loss of oral self-cleaning ability, and oral flora imbalance. Pathogens colonizing the oral cavity can easily migrate down the airway, causing serious complications such as ventilator-associated pneumonia. This not only prolongs hospital stays and increases mortality but also significantly increases medical costs and nursing burdens. Currently, clinical oral care is still mainly manual, which has many technical shortcomings: the effectiveness of nursing care is highly dependent on the operator's experience; areas such as around the catheter and interdental spaces are prone to cleaning blind spots, and there is a lack of quantitative assessment standards, resulting in inconsistent cleaning quality; traditional rinsing nursing care can easily lead to fluid reflux into the throat, increasing the risk of pulmonary infection and making dry operation impossible; nursing records rely on manual entry, which is inefficient and prone to errors, cannot be seamlessly linked with electronic medical record systems, and makes it difficult to trace the entire nursing process and control quality; microorganisms can easily colonize the surfaces of nursing devices that come into contact with the oral cavity, and there is a lack of long-term antibacterial protection, posing a risk of cross-infection.

[0003] Therefore, this invention proposes a systematic solution that integrates multimodal perception and evaluation, closed-loop safety spraying and suction, modular adaptation, and full-process data management, thereby effectively solving the above-mentioned problems and difficulties. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method and system for oral care management of critically ill patients, which solves the technical problems of traditional oral care, such as many blind spots in cleaning, high risk of aspiration, insufficient mucosal protection, unquantifiable cleaning effect, untraceable nursing process, and weak infection control capabilities. It achieves efficient, safe, standardized, and intelligent management of oral care for critically ill patients.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A management method implemented by a critical care patient oral care management system, the method specifically includes the following steps:

[0007] Step 1: Import patient clinical information, generate personalized care plans, match corresponding modular brush heads, and complete device initialization;

[0008] Step 2: Under visual guidance, start the integrated closed-loop spray suction, and use the controllable angle rotation of the brush head to clean the oral cavity in sections. During the process, the nursing parameters are monitored in real time and dynamically adjusted.

[0009] Step 3: Throughout the cleaning process, multimodal sensing is used to identify oral risks and implement graded safety interventions;

[0010] Step 4: After the first round of cleaning is completed, the system intelligently assesses the cleaning effect and performs supplementary cleaning on areas that do not meet the standards until they are satisfactory.

[0011] Step 5: Automatically archive nursing data and synchronize it to electronic medical records, generate follow-up nursing reminders and quality reports, and complete the closed-loop management of the entire process.

[0012] Furthermore, step 2 includes cleaning the outer tooth surface, cleaning the inner tooth surface and occlusal surface, and cleaning the blind area around the catheter. For patients with endotracheal tubes and dental pads, a contoured brush head is used to clean around the tube to solve the cleaning blind area caused by the catheter obstruction.

[0013] Furthermore, the graded safety intervention in step 3 specifically involves issuing an operation prompt when a mild risk is identified, immediately pausing the flushing process when a high risk is identified, automatically increasing the suction negative pressure to aspirate the residual liquid, and resuming operation only after the risk has been eliminated.

[0014] Furthermore, in step 4, AI image recognition is used to comprehensively quantify and score the cleanliness of the tooth surface, the cleanliness around the duct, and the condition of the mucosa, marking areas that do not meet the standards and guiding targeted supplementary cleaning.

[0015] A critical care patient oral care management system includes a multimodal sensing unit, a central intelligent control unit, an integrated closed-loop spray suction unit, a modular brush head assembly, a clinical data interaction management unit, and a safety protection unit. The multimodal sensing unit is used to collect visual images and physical parameters of the nursing process in the oral cavity, identify nursing risk indicators, and transmit the data to the central intelligent control unit. The multimodal sensing unit includes a visual perception submodule, a physical parameter perception submodule, and a risk indicator identification submodule.

[0016] The central intelligent control unit is the system control hub, used for data processing, intelligent evaluation of cleaning effect, precise adjustment of care parameters, brush head movement control, and safety warning and emergency control. It includes an AI cleaning effect evaluation module, a precise parameter adjustment module, a brush head movement control module, and a safety warning and emergency control module.

[0017] The integrated closed-loop spray-suction unit is used to realize the synchronous closed-loop operation of rinsing and suction, and to build a dry operating environment in the oral cavity, including a rinsing subsystem, a suction subsystem and closed-loop linkage control logic;

[0018] The modular brush head assembly is a replaceable structure that adapts to different patients' oral conditions and has both mucosal protection and antibacterial functions. The modular brush head assembly includes a brush head base and multiple replaceable brush heads.

[0019] The clinical data interaction management unit is used to connect with the hospital's electronic medical record and nursing system to realize automatic synchronization of nursing data, intelligent reminders for nursing plans, and generation of nursing quality reports. It includes an automatic data synchronization module, an intelligent reminder module for nursing plans, a nursing quality report module, and a full-process traceability module.

[0020] Furthermore, the visual perception submodule of the multimodal perception unit integrates a miniature camera and a cold light source to acquire real-time images of the oral cavity and enable visual operation; the physical parameter perception submodule integrates a temperature sensor, a flow sensor, and a pressure sensor to monitor the temperature, flow rate and total volume of the irrigation fluid, and the contact pressure of the brush head in real time; the risk indicator identification submodule is used to identify the risks of mucosal damage, bleeding, and irrigation fluid reflux, and output graded early warning signals.

[0021] Furthermore, the suction port of the integrated closed-loop spray suction unit is located on the side or rear of the brush head, forming a spatially staggered layout with the rinsing port. When rinsing is started, suction runs synchronously, and the rinsing flow rate and suction negative pressure are dynamically linked and matched to prevent liquid from flowing into the throat and causing aspiration.

[0022] Furthermore, the modular brush head assembly has an independent universal rotating joint built into the brush head base, which can realize multi-dimensional controllable angle rotation of the brush head. Replaceable brush heads include a tube-wrap brush head, a full-tooth-wrap brush head, a mucosal care brush head, and a denture cleaning brush head. The top of the brush head is rounded and blunted, and the overall flexibility is adjustable. The surface is coated with a hydrophilic antibacterial hydrogel coating containing silver ions or quaternary ammonium salts.

[0023] Furthermore, the central intelligent control unit can precisely maintain the temperature of the rinsing solution at 37°C and quantify the oral cleaning effect, marking areas that have not been cleaned to meet the standards.

[0024] Furthermore, the clinical data interaction management unit can automatically record nursing operation time, cleaning effect score, risk indicators and synchronize them to electronic medical records, supporting traceability of the entire nursing process and generation of quality statistical reports.

[0025] This invention provides a method and system for oral care management of critically ill patients. It has the following beneficial effects:

[0026] 1. This invention provides a method and system for oral care management of critically ill patients, which significantly improves cleaning quality and reduces complications. Through visual guidance, a universal rotating brush head, and a tube-wrap contour design, it thoroughly solves the cleaning blind spots around the catheter, and quantitative assessment ensures that the cleaning effect meets the standards. It effectively reduces the colonization of oral pathogens, lowers the incidence of complications such as ventilator-associated pneumonia, and improves patient prognosis. Furthermore, the closed-loop spray-suction structure avoids backflow and aspiration of liquid from the source, and the 37°C constant temperature rinsing, flexible and rounded brush head, and real-time pressure monitoring minimize mucosal damage. The graded risk warning and emergency control mechanism achieves full-process safety management.

[0027] 2. This invention provides a method and system for oral care management of critically ill patients. The process is standardized and intelligent, improving nursing efficiency and adaptability to various scenarios. Through seamless integration with electronic medical record systems, it automatically records, reminds, and generates reports, eliminating the errors and inefficiencies of manual recording. The entire process is traceable and controllable, reducing the workload of nursing staff and improving the level of precision in nursing management. Multiple modular brush heads can cover critically ill patients with different oral conditions such as endotracheal intubation, dental pads, mucosal injuries, and dentures, meeting the clinical needs of multiple departments such as ICU, emergency, and neurology. Attached Figure Description

[0028] Figure 1 This is a system module architecture diagram of the oral care management system for critically ill patients of the present invention;

[0029] Figure 2 This is a flowchart illustrating the steps of the oral care management method for critically ill patients according to the present invention. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figure 1 As shown, this embodiment of the invention provides an oral care management system for critically ill patients. The system consists of six core modules: a multimodal sensing unit, a central intelligent control unit, an integrated closed-loop spray and suction unit, a modular brush head assembly, a clinical data interaction management unit, and a safety protection unit. The modules are interconnected and operate collaboratively.

[0033] The multimodal perception unit, serving as the system's data acquisition entry point, is used to acquire real-time visual information and nursing process parameters within the oral cavity, providing comprehensive data support for intelligent decision-making. It comprises three sub-modules:

[0034] The visual perception submodule is integrated at the front end of the brush head base and consists of a high-resolution miniature camera and a cold light source illumination component. The camera synchronizes the real-time image inside the oral cavity to the external display terminal and the central control unit through a wireless transmission protocol, realizing full-process visual operation, assisting nursing staff in locating the cleaning area and observing the state of the oral mucosa, while providing raw image data for AI evaluation of cleaning effect.

[0035] The physical parameter sensing submodule integrates a temperature sensor, a flow sensor, and a pressure sensor. The temperature sensor monitors the output temperature of the rinsing fluid in real time, the flow sensor accurately collects the rinsing flow rate and the cumulative rinsing volume, and the pressure sensor detects the contact pressure between the brush head and the oral mucosa and teeth. All parameters are transmitted back to the central intelligent control unit in real time.

[0036] The risk indicator identification submodule uses visual images and physical parameter data to automatically identify abnormal mucosal conditions such as mucosal redness, swelling, damage, and bleeding, as well as high-risk scenarios such as reflux of irrigation fluid into the throat and airway exposure, and outputs corresponding risk warning signals based on the risk level.

[0037] The central intelligent control unit, as the core decision-making and control hub of the system, is responsible for data processing, parameter adjustment, and command output, and includes four functional modules:

[0038] Cleaning effect evaluation module: Receives oral image data from the visual perception submodule, identifies plaque, soft deposits and residual foreign objects on the tooth surface through a pre-trained deep learning algorithm, and quantifies and scores the cleaning effect from three dimensions: tooth surface cleanliness, periductal cleanliness and mucosal condition. Outputs a comprehensive cleaning effect score and marks areas that have not been cleaned to meet the standards.

[0039] Precise parameter control module: Based on preset nursing plans and real-time feedback data, it precisely controls the flow rate, total volume and temperature of the flushing solution. By default, it keeps the flushing solution at a constant temperature of 37℃, which is a suitable temperature for the human body, to avoid excessive cold stimulation. At the same time, it simultaneously controls the suction negative pressure intensity to achieve dynamic matching between flushing flow rate and suction negative pressure.

[0040] Brush head motion control module: Drives the independent universal joint built into the brush head to achieve multi-dimensional and controllable angle rotation of the brush head. It can automatically adjust the brush head posture according to the curvature of the tooth surface and the shape of the duct to complete the wrap-around and tube-wrapping cleaning.

[0041] Safety early warning and emergency control module: Receives early warning signals from the risk indicator identification submodule and executes a graded response mechanism; mild risks trigger audible and visual prompts and adjust operating parameters; high risks immediately suspend the flushing program, automatically increase the suction negative pressure to suck up residual liquid, and trigger shutdown protection if necessary;

[0042] The integrated closed-loop spray and suction unit enables simultaneous closed-loop operation of rinsing and suction, ensuring dry operation in the oral cavity from the structural and control levels and eliminating the risk of aspiration. It consists of three parts.

[0043] The rinsing subsystem consists of a sterile liquid storage chamber, a precision pumping mechanism and a constant temperature heating module. The rinsing pipeline is integrated inside the brush head, and the water outlet faces the cleaning area. It can output sterile rinsing fluid with set flow rate and temperature according to control commands.

[0044] The suction subsystem consists of a negative pressure control mechanism and a sealed waste liquid collection chamber. The suction port is located on the side or rear of the brush head, forming a spatially staggered layout with the rinsing port. When rinsing is started, suction is started simultaneously to promptly draw rinsing waste liquid, oral secretions, and sloughed plaque into the waste liquid collection chamber, ensuring that the liquid does not flow backward into the throat. This structurally avoids aspiration and lung infection. The rinsing flow rate and suction negative pressure are linked in real time. When the rinsing flow rate increases, the suction negative pressure is increased accordingly to ensure complete suction of waste liquid while avoiding excessive negative pressure that could adsorb and damage the mucous membrane.

[0045] The modular brush head assembly features a replaceable, quick-release modular design to adapt to different patients' oral conditions, balancing cleaning efficiency, mucosal protection, and infection control. It includes the following structure:

[0046] The brush head base has a built-in independent universal rotating joint that connects to the motion drive module of the central intelligent control unit, enabling multi-dimensional angle adjustment. A sterile quick-release interface is located at the end of the base, supporting rapid insertion and removal of the brush head. All brush head tips are rounded, and the bristles and base are made of a flexible, adjustable material that adapts to contact pressure, preventing scratching of the delicate oral mucosa. All brush head surfaces in contact with the oral mucosa are coated with a hydrophilic antibacterial hydrogel coating loaded with silver ions or quaternary ammonium salt antibacterial components. This reduces the surface friction coefficient, minimizing mucosal friction damage, and continuously inhibits microbial colonization on the device surface, reducing the risk of cross-infection.

[0047] The clinical data interaction management unit achieves seamless integration with the hospital's electronic medical record system and nursing information system, constructing a standardized and traceable full-process management system for oral care:

[0048] The automatic data synchronization module automatically records all data for each nursing operation, including start and end time, type of brush head used, nursing parameter details, cleaning effect score, detected risk indicators, mucosal status images, etc. After the nursing is completed, it is automatically synchronized to the patient's electronic medical record, eliminating the need for manual data entry.

[0049] The intelligent nursing plan reminder module automatically generates a personalized nursing frequency plan based on the patient's condition level, oral condition, and clinical nursing standards, and pushes the next nursing reminder in advance through the nursing terminal to ensure nursing compliance.

[0050] The nursing quality report module supports the generation of nursing quality statistical reports by patient, nursing unit, and time period, and can collect data such as cleaning compliance rate, risk event incidence rate, and VAP-related indicators to assist in nursing quality management and continuous improvement.

[0051] The end-to-end traceability module encrypts and stores complete operation logs and image data for each nursing care session, and supports backtracking queries by patient information and time range, meeting the needs of medical quality control and medical dispute tracing.

[0052] The safety protection unit integrates multiple safety mechanisms, including over-temperature protection, pressure overload protection, liquid level monitoring, low battery warning, and leakage protection. When the equipment malfunctions, the protection program is automatically triggered to ensure the safety of equipment operation and patient safety.

[0053] Example 2:

[0054] like Figure 2 As shown in this embodiment, the oral care management method for critically ill patients includes the following specific steps:

[0055] Step 1: Import patient information and generate personalized care plans;

[0056] The system connects to the hospital's electronic medical record system through the clinical data interaction management unit, and automatically obtains key clinical information such as the patient's basic information, disease diagnosis, type of artificial airway, whether a bite block is worn, degree of oral mucosal damage, and whether dentures are present.

[0057] The central intelligent control unit automatically matches the appropriate brush head module according to the patient's oral characteristics, presets parameters such as rinsing fluid temperature (default 37℃), rinsing flow rate, total volume of rinsing per session, suction negative pressure, and nursing duration, and generates a personalized oral care plan.

[0058] After the nursing staff verifies the plan, they select the corresponding modular brush head and aseptically install it into the brush head base. The system performs an initial self-test and enters standby mode after confirming that each module is functioning normally.

[0059] Step 2: Perform oral cavity zonal cleaning under visual guidance;

[0060] After the cleaning program is initiated, the cold light source of the multimodal sensing unit and the miniature camera are simultaneously activated, transmitting real-time images of the oral cavity to the display terminal. Guided by visual information, the caregiver gently inserts the brush head into the designated area of ​​the patient's mouth. The system performs zoned cleaning according to a preset path, maintaining simultaneous rinsing and suction throughout the process.

[0061] Lateral tooth surface cleaning: The brush head motion control module drives the universal joint to adjust the brush head angle so that the bristles fit the outer surface of the teeth. The integrated closed-loop spray suction unit is activated, and the brush head moves slowly along the teeth to perform a wrap-around rotating cleaning of each tooth, while simultaneously suctioning out waste liquid.

[0062] Cleaning the inner tooth surface and occlusal surface: Adjust the brush head angle to the corresponding tooth surface, repeat the spray and suction cleaning process, and focus on cleaning areas where plaque easily accumulates, such as interdental spaces and gingival sulci.

[0063] Cleaning of blind spots around the catheter: For patients with endotracheal tubes or dental pads, the tube-shaped brush head moves around the outer wall of the catheter to clean the gaps between the catheter and the tooth surface and mucosa. During the process, the suction negative pressure is dynamically increased to prevent liquid from seeping into the area around the catheter.

[0064] During the cleaning process, the physical parameter sensing submodule monitors the brush head contact pressure, rinsing fluid temperature and flow rate in real time; when the contact pressure exceeds the safety threshold, the system automatically reduces the brush head movement speed and issues an operation prompt; when the rinsing fluid temperature deviates from 37℃, the constant temperature module automatically adjusts the heating power to maintain a stable temperature.

[0065] Step 3: Real-time multimodal risk monitoring and tiered safety intervention;

[0066] The risk indicator identification submodule throughout the cleaning process continuously identifies the oral mucosa status and signs of fluid reflux based on real-time images and parameter data. When a mild risk is detected (such as slight redness of the mucosa or high contact pressure), the system issues an audio-visual prompt to guide nursing staff to adjust the operating angle and force. When a high-risk risk is detected (such as fluid reflux into the throat or active bleeding of the mucosa), the system immediately pauses the flushing procedure, automatically increases the suction negative pressure to aspirate residual fluid, and the cleaning operation can only be resumed after the risk is eliminated and confirmed by the operator.

[0067] Step 4: Intelligent assessment of cleaning effectiveness and supplementary cleaning;

[0068] After the first round of cleaning is completed, the system controls the brush head to collect complete images throughout the entire oral cavity. The central intelligent control unit calls the AI ​​cleaning effect evaluation module to comprehensively analyze the tooth surface, the area around the duct, and the mucosa, and outputs a quantitative cleaning score and marks areas that do not meet the standards.

[0069] If the overall score reaches the preset passing threshold, the cleaning process ends; if the score does not meet the standard, the system highlights the areas that have not been cleaned properly on the display terminal, guiding the nursing staff to perform targeted supplementary cleaning; after the supplementary cleaning is completed, the evaluation is performed again until the cleaning effect meets the standard.

[0070] Step 5: Nursing data archiving and closed-loop management of the entire process;

[0071] After cleaning is completed, the system automatically organizes all data for this nursing care, including operation time, operator, brush head type, nursing parameters, cleaning effect score, risk event record, oral mucosa condition image, etc.

[0072] The clinical data interaction management unit automatically encrypts and synchronizes the above data to the patient's electronic medical record system and the nursing management system, completing the automatic archiving of nursing records without the need for manual entry.

[0073] The system automatically calculates the next oral care time based on the patient's care cycle and pushes reminders to the nursing terminal simultaneously; it also supports the generation of departmental nursing quality analysis reports on a periodic basis, providing data support for continuous improvement of nursing quality.

[0074] All nursing data is stored in encrypted form and supports full-process traceability and query, meeting clinical quality management and compliance requirements.

[0075] The following points should be noted in this article:

[0076] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0077] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0078] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A method for oral care management of critically ill patients, characterized in that: The method specifically includes the following steps: Step 1: Import patient clinical information, generate personalized care plans, match corresponding modular brush heads, and complete device initialization; Step 2: Under visual guidance, start the integrated closed-loop spray suction, and use the controllable angle rotation of the brush head to clean the oral cavity in sections. During the process, the nursing parameters are monitored in real time and dynamically adjusted. Step 3: Throughout the cleaning process, multimodal sensing is used to identify oral risks and implement graded safety interventions; Step 4: After the first round of cleaning is completed, the system intelligently assesses the cleaning effect and performs supplementary cleaning on areas that do not meet the standards until they are satisfactory. Step 5: Automatically archive nursing data and synchronize it to electronic medical records, generate follow-up nursing reminders and quality reports, and complete the closed-loop management of the entire process.

2. The method for oral care management of critically ill patients according to claim 1, characterized in that: Step 2 includes cleaning the outer tooth surface, cleaning the inner tooth surface and occlusal surface, and cleaning the blind area around the catheter. For patients with endotracheal tubes and dental pads, a contoured brush head is used to clean around the tube to solve the cleaning blind area caused by the catheter obstruction.

3. The method for oral care management of critically ill patients according to claim 1, characterized in that: In step 3, the graded safety intervention specifically involves issuing an operation prompt when a mild risk is identified, and immediately pausing the flushing process when a high risk is identified, automatically increasing the suction negative pressure to aspirate the residual liquid, and resuming operation only after the risk has been eliminated.

4. The method for oral care management of critically ill patients according to claim 1, characterized in that: In step 4, AI image recognition is used to comprehensively quantify and score the cleanliness of the tooth surface, the cleanliness around the duct, and the condition of the mucosa, marking areas that do not meet the standards and guiding targeted supplementary cleaning.

5. A critical care patient oral care management system, comprising a multimodal sensing unit, a central intelligent control unit, an integrated closed-loop spray suction unit, a modular brush head assembly, a clinical data interaction management unit, and a safety protection unit, characterized in that: The multimodal perception unit is used to collect intraoral visual images and physical parameters of the nursing process, identify nursing risk indicators, and transmit the data to the central intelligent control unit. The multimodal perception unit includes a visual perception submodule, a physical parameter perception submodule, and a risk indicator identification submodule. The central intelligent control unit is the system control hub, used for data processing, intelligent evaluation of cleaning effect, precise adjustment of care parameters, brush head movement control, and safety warning and emergency control. It includes an AI cleaning effect evaluation module, a precise parameter adjustment module, a brush head movement control module, and a safety warning and emergency control module. The integrated closed-loop spray-suction unit is used to realize the synchronous closed-loop operation of rinsing and suction, and to build a dry operating environment in the oral cavity, including a rinsing subsystem, a suction subsystem and closed-loop linkage control logic; The modular brush head assembly is a replaceable structure that adapts to different patients' oral conditions and has both mucosal protection and antibacterial functions. The modular brush head assembly includes a brush head base and multiple replaceable brush heads. The clinical data interaction management unit is used to connect with the hospital's electronic medical record and nursing system to realize automatic synchronization of nursing data, intelligent reminders for nursing plans, and generation of nursing quality reports. It includes an automatic data synchronization module, an intelligent reminder module for nursing plans, a nursing quality report module, and a full-process traceability module.

6. The oral care management system for critically ill patients according to claim 5, characterized in that: The visual perception submodule of the multimodal perception unit integrates a miniature camera and a cold light source to acquire real-time images of the oral cavity and enable visual operation; the physical parameter perception submodule integrates a temperature sensor, a flow sensor, and a pressure sensor to monitor the temperature of the rinsing fluid, the rinsing flow rate and total volume, and the brush head contact pressure in real time. The risk indicator identification submodule is used to identify the risks of mucosal damage, bleeding, and reflux of irrigation fluid, and output graded early warning signals.

7. The oral care management system for critically ill patients according to claim 5, characterized in that: The suction port of the integrated closed-loop spray suction unit is located on the side or rear of the brush head, forming a spatially staggered layout with the rinsing port. When rinsing is started, suction runs synchronously. The rinsing flow rate and suction negative pressure are dynamically linked and matched to prevent liquid from flowing into the throat and causing aspiration.

8. The oral care management system for critically ill patients according to claim 5, characterized in that: The modular brush head assembly has an independent universal rotating joint built into the brush head base, which can realize multi-dimensional controllable angle rotation of the brush head. Replaceable brush heads include tube-shaped brush heads, full-tooth-wrapped brush heads, mucosal care brush heads, and denture cleaning brush heads. The top of the brush head is rounded and blunted, and the overall flexibility is adjustable. The surface is coated with a hydrophilic antibacterial hydrogel coating containing silver ions or quaternary ammonium salts.

9. The oral care management system for critically ill patients according to claim 5, characterized in that: The central intelligent control unit can precisely maintain the temperature of the rinsing solution at 37°C and quantify the oral cleaning effect, marking areas that have not been cleaned and have not met the standards.

10. The oral care management system for critically ill patients according to claim 5, characterized in that: The clinical data interaction management unit can automatically record nursing operation time, cleaning effect score, risk indicators and synchronize them to electronic medical records, supporting traceability of the entire nursing process and generation of quality statistical reports.

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