Medical intelligent measuring instrument for water content of food
By designing a medical food moisture content intelligent measuring instrument, which combines weighing and scanning recognition technologies, the problems of food type identification and patient information binding in existing technologies have been solved. This enables automatic calculation and accurate recording of food moisture content, reducing the burden on nursing staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-20
AI Technical Summary
Existing technologies cannot effectively and intelligently identify food types and link them to patient information, resulting in large errors, complex and inconvenient operations for nurses when recording the water content of food.
A medical food moisture content intelligent measuring instrument was designed, which combines a weighing area and an intelligent communication platform. It identifies food types and automatically calculates moisture content through a scanning pen, and binds it with patient information to realize automatic data entry into the nursing documentation system.
It enables intelligent identification of food types and automatic calculation of water content, reducing the workload of nursing staff and improving the accuracy of recorded information and the control of patients' water intake.
Smart Images

Figure CN224020280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of artificial intelligence metrology science, with the classification number G06V20 / 00. In particular, it relates to a medical food moisture content intelligent measuring instrument. Background Technology
[0002] In medical care, accurately recording patients' dietary intake is one of the most important tasks for nurses. For patients requiring strict fluid control, such as those with kidney or heart failure, recording the water content of food is particularly crucial. While nurses can directly calculate the water content of fluids like water, urine, and drainage fluid using measuring cups, estimating the water content of food presents challenges. A study by Heng Chunni et al. found that 54% of nurses estimated the water content of patients' food by visual inspection, and only 10% estimated the water content of non-liquid foods by weighing them using standard measuring tools and referring to food water content tables ("Problems and Countermeasures in Nurses' Estimation of Food Water Content When Recording Patient Intake and Output"). A survey of nurses in Jingzhou by Li Ping et al. found that 72.8% of nurses believed the inaccuracy in recording was due to the lack of correct measurement methods ("A Survey of Nurses' Cognition of Recording 24-Hour Intake and Output in Jingzhou"). Nurses face heavy workloads and urgently need effective tools to reduce errors and workload while improving the accuracy of patient fluid management.
[0003] Existing technology, such as Chinese Utility Model Patent Publication CN212779444U, discloses a medical measuring device, including a medical measuring cup and a medical electronic scale. The measuring cup is used to hold a container for measuring influent and influent, and is also used to measure the liquid influent and the water content of porridge. The measuring cup has two scales: a standard liquid scale and a porridge water content scale. The standard liquid scale is used to measure the liquid influent; the porridge water content scale is used to measure the water content of porridge. This scale is derived from the ratio between the standard liquid measurement value and the porridge water content value based on the standard liquid scale. The disadvantage of this measuring device is that it cannot be directly imported into a nursing record system and requires manual input of food information.
[0004] Chinese invention patent application CN116434900A discloses a conversion system for statistically calculating food water intake, including an information input module, a database, a water content conversion module, and an information receiving module. The input module is used to input the patient's ingestion and excretion volumes, and simultaneously sends these volumes to the database. The water content conversion module retrieves water intake data from the database and includes a food water content ratio table. It converts the retrieved ingestion volume to water content based on the table and sends the resulting water content to both the database and the information receiving module. The database stores the patient's ingestion, excretion, and the food water content calculated by the conversion module. A drawback of this conversion system is that it cannot combine weighing with water intake recording, increasing the risk of human error.
[0005] Chinese invention patent application CN112220451A discloses a human body water intake and output statistics system, including a water intake meter for counting the amount of water entering the body, a water output meter for counting the amount of water excreted, and a computer for receiving the measurement data from the water intake meter and the water output meter. The computer has a built-in data processing module. The disadvantage of this system is that it requires manual button presses to categorize food types, cannot intelligently identify food types, and is complex to operate.
[0006] Chinese invention patent application CN116343015A discloses an artificial intelligence-based system for measuring the moisture content of medical food. First, it denoises the images of the medical food captured by a camera to obtain a denoised image. Then, it calculates a shallow feature map of the food using a neural network model, followed by a spatially focused shallow feature map using an attention mechanism. Finally, it fuses these features to obtain a decoded feature map, thus enabling convenient measurement of the moisture content of solid medical foods. While this technology can intelligently identify food types, it cannot accurately link to patient water intake information, potentially leading to management confusion.
[0007] However, there is an urgent need in the existing technology for a medical food moisture content intelligent measuring instrument that can both intelligently identify food types and be linked to patient information. Utility Model Content
[0008] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a medical food moisture content intelligent measuring instrument that can intelligently identify the type of food, automatically calculate the moisture content of food, and be bound to patient information, thereby accurately controlling the patient's water intake.
[0009] Specifically, according to one aspect of this utility model, this utility model provides a medical food moisture content intelligent measuring instrument, including a main body, which is divided into two large areas: a weighing area and an intelligent communication platform. The intelligent communication platform is provided with a "+" button, a "-" button and an OK / shortcut key at the bottom. A scanning pen is inserted into the upper right of the intelligent communication platform. The front of the scanning pen is provided with a display window at the top and a button for scanning food and scanning barcodes or QR codes on the patient's wristband at the bottom. The back of the scanning pen is provided with a camera scanning area.
[0010] Preferably, the medical food moisture content intelligent measuring instrument has a switch on the left side of the upper side and a scanning pen port on the right side.
[0011] Preferably, a loudspeaker is provided on the upper right side of the main body of the medical food moisture content intelligent measuring instrument, and a USB port is provided on the lower right side.
[0012] Preferably, the base of the main body is provided with 8 rubber support pads.
[0013] Preferably, the smart communication platform is equipped with a WIFI display area, a Bluetooth display area, a time display area, a voice display, a settings button, and a battery charging status indicator.
[0014] Preferably, a power indicator light is provided at the top left side of the front of the scanning pen.
[0015] Preferably, a USB interface is provided on the right side of the scanning pen.
[0016] Preferably, the intelligent communication platform includes a touch screen display.
[0017] Due to the adoption of the above technical solution, the beneficial effects of this utility model include: the medical food moisture content intelligent measuring instrument provided by this utility model can intelligently identify the type of food, automatically calculate the moisture content of the food, and can be bound to patient information, thereby accurately controlling the patient's water intake, reducing the burden on nursing staff, and improving the accuracy of recorded information. Attached Figure Description
[0018] Figure 1 This is a front view of a medical food moisture content intelligent measuring instrument according to this utility model;
[0019] Figure 2 This is a back view of a medical food moisture content intelligent measuring instrument according to this utility model;
[0020] Figure 3 This is a top side view of a medical food moisture content intelligent measuring instrument according to this utility model;
[0021] Figure 4 This is a right-side view of a medical food moisture content intelligent measuring instrument according to this utility model;
[0022] Figure 5 yes Figure 1 The image shows a front view of the scanning pen in a medical food moisture content intelligent measuring instrument;
[0023] Figure 6 yes Figure 1 The image shows the back of the scanning pen in a medical food moisture content intelligent measuring instrument;
[0024] Figure 7 yes Figure 1 The image shown is a right-side view of the scanning pen in a medical food moisture content intelligent measuring instrument.
[0025] Figure 8 yes Figure 1 The diagram shows the interface between a medical food moisture content intelligent measuring instrument and a hospital software system.
[0026] Figure 9 yes Figure 1 The flowchart shown illustrates the binding of a medical food moisture content intelligent measuring instrument to an employee's ID number.
[0027] Figure 10 yes Figure 1 The diagram shows the internal working module of a medical food moisture content intelligent measuring instrument.
[0028] Figure 11 yes Figure 10 The diagram shown illustrates the working principle of the weight data processing module.
[0029] Figure 12 yes Figure 10 The diagram shown illustrates the working principle of the AI image recognition module.
[0030] Figure 13 yes Figure 10 The diagram shown illustrates the working principle of the food moisture content conversion module.
[0031] Figure 14 yes Figure 10 The diagram shown illustrates the working principle of the data entry module.
[0032] Figure 15 yes Figure 1 The diagram shows the volume adjustment of a medical food moisture content intelligent measuring instrument;
[0033] Figure 16 yes Figure 1 The flowchart shown is for inputting liquid food data using a medical food moisture content intelligent measuring instrument.
[0034] Figure 17 yes Figure 1The flowchart shown is for inputting non-liquid food data using a medical food moisture content intelligent measuring instrument.
[0035] Figure 18 yes Figure 1 The flowchart shown is for modifying non-liquid foods using a medical food moisture content intelligent measuring instrument.
[0036] Reference numerals: 1-Main body; 2-Weighing area; 3-Intelligent communication platform; 4-"+" button; 5-"-" button; 6-OK / Shortcut key; 7-Scanning pen; 8-WIFI display area; 9-Bluetooth display area; 10-Time display area; 11-Voice display; 12-Settings key; 13-Battery charging status; 14-Rubber support pad; 15-Switch; 16-Scanning pen port; 17-USB port; 18-Amplifier; 19-Power indicator light; 20-Display window; 21-Scan food button; 22-Scan patient wristband barcode or QR code button; 23-Camera scanning area; 24-USB interface; 25-Hospital software system. Detailed Implementation
[0037] The present invention will now be described in detail with reference to the accompanying drawings.
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0039] Figure 1 This is a front view of a medical food moisture content intelligent measuring instrument according to this utility model. Figure 2 This is a back view of a medical food moisture content intelligent measuring instrument according to this utility model. Figure 3 This is a top side view of a medical food moisture content intelligent measuring instrument according to this utility model. Figure 4 This is a right-side view of a medical food moisture content intelligent measuring instrument according to this utility model. Figure 5 yes Figure 1 The image shown is a front view of the scanning pen in a medical food moisture content intelligent measuring instrument. Figure 6 yes Figure 1 The image shows the back of the scanning pen in a medical food moisture content intelligent measuring instrument. Figure 7 yes Figure 1 The image shown is a right-side view of the scanning pen in a medical food moisture content intelligent measuring instrument.
[0040] like Figure 1-7As shown, this embodiment provides a medical food moisture content intelligent measuring instrument, including a main body 1. The main body 1 is divided into two main areas: a weighing area 2 and an intelligent communication platform 3. The intelligent communication platform 3 is provided with a "+" button 4, a "-" button 5 and an OK / shortcut key 6 at the bottom. A scanning pen 7 is inserted in the upper right corner of the intelligent communication platform 3. The front of the scanning pen 7 is provided with a display window 20 at the top and a food scanning button 21 and a patient wristband barcode or QR code scanning button 22 at the bottom. The back of the scanning pen is provided with a camera scanning area 23.
[0041] Optionally, a switch 15 is located on the upper left side of the main body 1 of the medical food moisture content intelligent measuring instrument, and a scanning pen socket 16 is located on the right side. Pressing the top of the scanning pen 7 will automatically eject the scanning pen 7 from the scanning pen socket 16.
[0042] Optionally, a loudspeaker 18 is located on the upper right side of the main body of the medical food moisture content intelligent measuring instrument, and a USB port 17 is located below it. Charging can be performed through this USB port 17.
[0043] Optionally, the base of the body (1) is provided with eight rubber support pads 14 to support balance.
[0044] Optionally, the smart communication platform 3 has a WIFI display area 8, a Bluetooth display area 9, a time display area 10, a voice display 11, a setting button 12, and a battery charging status display 13 on its top. When a nurse turns on the medical food moisture content smart measuring instrument of this utility model, the instrument automatically turns on WIFI, Bluetooth, and voice, and synchronizes time data. Six areas are displayed on the top of the smart communication platform 3: WIFI display area 8, Bluetooth display area 9, time display area 10, voice display 11, setting button 12, and battery charging status display 13. To adjust the volume, press and hold the "+" button 4 to increase the volume, and press and hold the "-" button 5 to decrease the volume. Figure 15 As shown.
[0045] Optionally, a power indicator light 19 is provided at the top left side of the front of the scanning pen 7, which will flash red when the power is low.
[0046] Optionally, a USB port 24 is provided on the right side of the scanning pen 7, through which the scanning pen 7 can be charged.
[0047] Optionally, the intelligent communication platform 3 includes a touch display screen.
[0048] Figure 8 yes Figure 1The diagram shows the interface between a medical food moisture content intelligent measuring instrument and a hospital software system. This utility model's medical food moisture content intelligent measuring instrument first interfaces with the hospital system, employee ID, name, and other hospital software systems 25. Data is then directly entered into nursing records by scanning the patient's wristband barcode or QR code with a scanning pen 7.
[0049] Figure 9 yes Figure 1 The flowchart shown illustrates the process of binding a medical food moisture content intelligent measuring instrument to an employee's ID number. Before measuring food, nurses should bind their ID number to the device (voice prompts will be provided): Click the settings button 12 at the top of the intelligent communication platform 3 to bring up a dialog box; enter the employee ID number (voice prompts will be provided simultaneously), enter employee ID: 123456, and click: OK / shortcut key 6. The upper right corner of the intelligent communication platform 3 will display: employee name, 123456, indicating successful binding (voice prompts will be provided simultaneously).
[0050] Figure 10 yes Figure 1 The diagram shows the internal working modules of a medical food moisture content intelligent measuring instrument. The internal structure of this instrument mainly includes four modules: a weight data processing module, an AI image recognition module, a food moisture content conversion module, and a data entry module. The weight data processing module obtains the actual weight of the food, the AI image recognition module confirms the food's name, the food moisture content conversion module converts the weight into a moisture content (in ml), and finally, the data is uploaded to the data entry module for data entry.
[0051] Figure 11 yes Figure 10 The diagram shows the working principle of the weight processing module. The weight data processing module first acquires the weight of the food container, then pours the food into the container and weighs it again to obtain the sum of the food and container weights. The actual weight is then calculated using the formula: Food weight = Food + Container weight - Container weight.
[0052] Figure 12 yes Figure 10 The diagram shows the working principle of the AI image recognition module. First, image acquisition: Pressing the food scan button 21 on the scanning pen 7 frames the food image into the scanning pen's display window 20, acquiring image data; then, the AI intelligent image recognition system performs image preprocessing: including noise reduction, image enhancement (such as contrast adjustment and dehazing), depth data conversion, etc., to improve subsequent recognition accuracy; the recognition engine integrates object detection, scene classification, and other functions, with some systems supporting API calls, transmitting images to the cloud for analysis using Base64 encoding; finally, the result is output: the food name, such as rice, is displayed on the intelligent communication platform 3.
[0053] Figure 13yes Figure 10 The diagram shows the working principle of the food moisture content conversion module. First, data is collected: food name and weight. Then, the data is processed by the calculation system using the formula (based on the 6th edition of the Chinese Food Composition Table): Food moisture content = Food weight (g) × Moisture content of edible portion (g / 100g). For example, 100g of rice has a moisture content of 70g / 100g. Therefore, the moisture content of rice = 100g × 70g / 100g - 70g, where 1g = 1ml, resulting in 70ml. Finally, the result is output: The food name, moisture content (e.g., rice), and 70ml are displayed on the intelligent communication platform 3.
[0054] Figure 14 yes Figure 10 The diagram shows the working principle of the data entry module. Data acquisition: food name and water content. Data enters the data entry system: Press and hold the barcode or QR code scanning button 22 on the scanning pen 7 to emit a red laser; align the red laser with the barcode or QR code on the patient's wristband and scan; the intelligent communication platform 3 displays: Bed 201 ××× 123456789 March 22, 2025, 18:00 Rice 70ml; after pressing OK / shortcut key 6, the intelligent communication platform 3 displays: Data import successful (with voice prompt), and the nursing document system automatically records the time, food name, water content, and nurse's name.
[0055] Figure 16 yes Figure 1 The diagram shows the input flowchart for liquid food using a medical intelligent food moisture content measuring instrument. Input opportunity: After the patient finishes drinking the liquid food (using a dedicated graduated scale), directly obtain the moisture content: xxml (already bound to the employee ID), press the "+" button 4 (with voice prompt: measuring container), long press the OK button 6, voice prompt: directly input the food name and moisture content. Intelligent Communication Platform 3: Input food name: milk, voice prompt: please press the OK button 6. If no button is pressed for more than 5 seconds, it will automatically return to the previous menu. Intelligent Communication Platform 3: Input food moisture content: 100ml, voice prompt: please press the OK button 6. If no button is pressed for more than 5 seconds, it will automatically return to the previous menu. Intelligent Communication Platform 3: Milk, 100ml. Voice prompt: Scan the patient's barcode or QR code. After scanning, Intelligent Communication Platform 3: Bed 201 XXX 123456789 March 22, 2025 21:13 Milk 100ml. Voice prompt: Please press the OK button (6). If the button is not pressed for more than 5 seconds, you will automatically return to the previous menu. Data entry successful (voice prompt at the same time).
[0056] Figure 17 yes Figure 1The diagram shows the input flowchart for non-liquid food using a medical intelligent food moisture content measuring instrument. Input opportunity: The patient begins eating (already bound to an employee ID), presses the "+" button 4, voice prompt: "Measure container," place the empty container in the weighing area 2, voice prompt: "Pour in single food": i.e., rice and vegetables separately, weighing area 2: rice is poured into the container, voice prompt: "Scan food," take out the scanning pen 7, press and hold the "Scan food" button 21 on the scanning pen, align it with the food, the food image is displayed in the scanning pen display window 20, voice prompt: "Please press the OK button 6," if no button is pressed for more than 5 seconds, it automatically returns to the previous menu. Intelligent communication platform 3: Rice: 70ml, voice prompt: "To continue measuring, press the "+" button 4," if the measurement is complete, press the "-" button 5 to modify the data, press the OK button 6 to import the data, if no button is pressed for more than 5 seconds, it automatically returns to the previous menu. If the "+" button 4 is pressed, the above steps are repeated until Intelligent communication platform 3: Rice: 70ml, Vegetables: 50ml, Meat: 50ml. Voice prompts: To continue measurement, press the "+" key 4; to complete measurement, press the "-" key 5 to modify data; to import data, press the "OK" key 6. If no key is pressed for more than 5 seconds, the system will automatically return to the previous menu. After pressing the "OK" key 6, the voice prompts: Scan the patient's barcode or QR code. Smart Communication Platform 3: Bed 201 xxx 123456789 March 22, 2025, 18:13 Rice: 70ml, Vegetables: 50ml, Meat: 50ml. Voice prompts: Please press the "OK" key 6. If no key is pressed for more than 5 seconds, the system will automatically return to the previous menu. Data entry successful (with voice prompts).
[0057] Figure 18 yes Figure 1The diagram shows a flowchart for modifying non-liquid food data using a smart food moisture content measuring instrument. Input opportunity: When the patient has finished eating and there is leftover food (already bound to an employee ID), press the "-" key. Voice prompt: "Measure container." Place the empty container in weighing area 2. Voice prompt: "Pour in single food:" (i.e., separate rice and vegetables). Weighing area 2: Pour rice into the container. Voice prompt: "Scan food." Take out the scanning pen 7, press and hold the "Scan food" button 21 on the scanning pen, align it with the food, and display the food image in the scanning pen display window 20. Voice prompt: "Press the OK button 6." If no button is pressed for more than 5 seconds, it will automatically return to the previous menu. Smart communication platform 3: Rice: 10ml. Voice prompt: "To continue measuring, press the "+" key 4." If the measurement is complete, press the "-" key 5 to modify the data. If data needs to be imported, press the OK key 6. If no button is pressed for more than 5 seconds, it will automatically return to the previous menu. If the "+" key 4 is pressed, repeat the above steps until Smart communication platform 3: Rice: 10ml, Vegetables: 10ml, Meat: 10ml. Voice prompts: To continue measurement, press the "+" key 4; to complete measurement, press the "-" key 5 to modify data; to import data, press the "OK" key 6. If no key is pressed for more than 5 seconds, the system will automatically return to the previous menu. After pressing the "-" key 5, the voice prompts: Scan the patient's barcode or QR code. Smart communication platform 3: Bed 201 xxx 123456789 March 22, 2025, 18:13 Rice: 60ml, Vegetables: 40ml, Meat: 40ml. Voice prompts: Please press the "OK" key 6. If no key is pressed for more than 5 seconds, the system will automatically return to the previous menu, and the data modification will be successful (with a voice prompt).
[0058] This utility model discloses a medical food moisture content intelligent measuring instrument with seven functions: ① identifying food type (non-liquid food) through scanning; ② automatically calculating food moisture content based on food weight; ③ importing food moisture content into the nursing documentation system via patient QR code scanning and the "+" button; ④ automatically calculating food moisture content based on the patient's remaining food weight, with nurses able to accurately modify entered nursing documentation data via QR code scanning and the "-" button; ⑤ directly importing liquid food moisture content records via shortcut keys; ⑥ recording can be done automatically at the patient's bedside, saving nurses' energy; ⑦ voice-guided operation, requiring no training.
[0059] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A medical food moisture content intelligent measuring instrument, characterized in that: Includes a main body (1), which is divided into two main areas: a weighing area (2) and an intelligent communication platform (3). The intelligent communication platform (3) is equipped with a "+" button (4), a "-" button (5) and a confirmation / shortcut key (6) at the bottom. A scanning pen (7) is inserted in the upper right corner of the intelligent communication platform (3). The scanning pen (7) has a display window (20) at the top front and a food scanning button (21) and a patient wristband barcode or QR code scanning button (22) at the bottom. The scanning pen (7) has a camera scanning area (23) on the back.
2. The intelligent measuring instrument for the moisture content of medical food as described in claim 1, characterized in that: A switch (15) is provided on the left side of the upper side of the main body (1), and a scanning pen slot (16) is provided on the right side.
3. The intelligent measuring instrument for the moisture content of medical food as described in claim 2, characterized in that: A loudspeaker (18) is provided on the upper right side of the main body (1), and a USB port (17) is provided below it.
4. The intelligent measuring instrument for the moisture content of medical food as described in claim 3, characterized in that: The base of the main body (1) is provided with 8 rubber support pads (14).
5. The intelligent measuring instrument for the moisture content of medical food as described in claim 4, characterized in that: The smart communication platform (3) is equipped with a WIFI display area (8), a Bluetooth display area (9), a time display area (10), a voice display (11), a setting key (12), and a battery charging status (13) on its top.
6. The intelligent measuring instrument for the moisture content of medical food as described in claim 1, characterized in that: The scanning pen (7) has a power indicator light (19) on the top left side of its front.
7. The intelligent measuring instrument for the moisture content of medical food as described in claim 6, characterized in that: The right side of the scanning pen (7) is provided with a USB interface (24).
8. The intelligent measuring instrument for the moisture content of medical food as described in claim 1, characterized in that: The intelligent communication platform (3) includes a touch screen.
Citation Information
Patent Citations
Human body water outlet and inlet amount statistical system
CN112220451A
Medical food water content measuring system based on artificial intelligence
CN116343015A
Conversion system for statistically converting water intake of food
CN116434900A
Medical metering device
CN212779444U