A parenteral nutrition finished product review system and method

Abstract

The present application belongs to the field of medical equipment and medical informatization technology, and provides an enteral nutrition liquid finished product review system and method, which can realize automatic reading of prescription two-dimensional code to obtain formula information, precise weighing to obtain measured weight, automatic calculation of theoretical weight and giving of pass / alarm judgment within the error tolerance range, and complete recording of checking data, so as to greatly improve the efficiency and accuracy of enteral nutrition liquid review.

Description

Technical Field

[0001] This invention belongs to the field of medical equipment and medical information technology, specifically relating to a system and method for verifying finished parenteral nutrition solutions. Background Technology

[0002] Parenteral nutrition (PN) is an intravenous infusion preparation that mixes various nutrients such as amino acids, fat emulsions, glucose, electrolytes, vitamins, and trace elements in the same container. It is mainly used for patients who cannot obtain sufficient nutrition through the intestines, and is particularly important in the fields of neonatology, pediatrics, oncology, and critical care.

[0003] Currently, the main methods for verifying parenteral nutrition solutions at domestic intravenous drug preparation centers (PIVAS) include: visual comparison (comparing the amount of each drug added with the amount stated on the label), weighing verification (calculating the theoretical total weight by adding the weight of the empty bag to the theoretical amount added, and comparing it with the actual weight), and QR code scanning (scanning the QR code on the label to read the prescription information to assist in verification).

[0004] The existing methods have the following main drawbacks: (1) The visual method relies entirely on manual labor, which is inefficient and has a high error rate; (2) The repeated nuclei are mostly measured using general electronic balances, which lack automatic correlation with patient prescription data and still require manual step-by-step comparison, making the operation cumbersome; (3) The QR code scanning function is scattered across independent terminals and is not integrated with the weighing process, forming an "information island"; (4) The lack of a systematic data recording and traceability mechanism makes it difficult to trace the source after an error is discovered; (5) For newborns and pediatric patients, the PN dose is small and the formulation is highly individualized, making the risk of manual verification particularly prominent.

[0005] Therefore, there is an urgent need for an intelligent parenteral nutrition solution verification device and software system that integrates QR code recognition, precise weighing, database query, threshold judgment, result display and record archiving, in order to improve verification efficiency and accuracy and ensure patient medication safety. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a system and method for verifying finished parenteral nutrition solutions, thereby resolving the issues in the prior art. The technical solution adopted by this invention is as follows: A parenteral nutrition solution finished product verification system includes: Weighing platform: installed on the device housing, used to hold and weigh the finished parenteral nutrition solution bags; The barcode scanning module is installed on the device housing and is used to scan the prescription label QR code on the finished parenteral nutrition solution bag to extract patient information and prescription formula data. Display screen: Located on the device housing and electrically connected to the main control unit, used to display prescription information, verification results and alarm indicators; Main control unit: includes microprocessor and storage module, runs verification software system, and completes data reception, calculation, comparison and recording.

[0007] Furthermore, the verification software system includes: The QR code reading and prescription parsing module is used to receive the QR code string from the scanning module; connect to the formula database stored in JSON format to query the corresponding parenteral nutrition formula information based on the prescription number in the QR code; and extract and display the patient's basic information and formula details. Theoretical weight calculation module: used to calculate the theoretical total weight of the parenteral nutrition solution based on the actual amount of each component added and the specific gravity parameters of each solution. Theoretical weight = empty bag weight + label weight + Σ (volume of each component × corresponding specific gravity); Weight comparison and judgment module: compares the measured weight with the theoretical weight, calculates the absolute deviation and relative deviation; when the relative deviation exceeds the preset threshold, an alarm is triggered and an alarm icon is displayed; when the relative deviation is within the preset threshold range, a pass icon is displayed. Data recording and traceability module: Records prescription number, patient information, theoretical weight, actual weight, deviation value, verification conclusion and verification time for each verification, and supports historical record retrieval and traceability by time range and prescription number.

[0008] Furthermore, the weighing platform is a precision electronic balance.

[0009] Furthermore, it also includes a communication interface, which includes at least one of USB, RS232, WiFi or Ethernet interfaces, for data interaction with the hospital information system or formula database server.

[0010] Furthermore, the display screen is a touch screen, used to display prescription information, theoretical weight, actual weight, deviation value and verification conclusion in real time, and to display a green mark when the verification is successful and a red alarm mark when the verification fails.

[0011] Furthermore, it also includes a power supply module to provide a stable operating voltage for the weighing platform, barcode scanning module, main control unit, and display screen.

[0012] A method for verifying finished parenteral nutrition solutions includes: Step 1: System initialization, loading the formula database, drug parameter database, and system configuration parameters; Step 2: Scan the prescription QR code, parse and extract the prescription number and patient information, and query the corresponding parenteral nutrition solution formula information from the formula database; Step 3: Calculate the theoretical weight. Based on the volume of each component in the prescription and the specific gravity of the corresponding solution, the formula is: Theoretical weight = weight of empty bag + weight of label + Σ (volume of each component × corresponding specific gravity); calculate the theoretical total weight of the finished parenteral nutrition solution. Step 4: Obtain the actual weight. Place the finished bag of parenteral nutrition solution on the weighing platform. After the weighing reading stabilizes, read and record the actual weight. Step 5: Compare and judge, calculate the relative deviation between the measured weight and the theoretical weight; when the relative deviation is within the preset threshold range, it is judged as passing, and the display shows a green pass mark; when the relative deviation exceeds the preset threshold, an alarm is triggered, and the display shows a red alarm mark. Step 6: Data recording. Prescription number, patient information, theoretical weight, actual weight, deviation value, verification conclusion and verification time are automatically saved to the database, supporting historical record retrieval and traceability. Step 7: Continue to check the next bag, repeating steps 2 to 6 until all the finished parenteral nutrition solution in the batch has been checked.

[0013] Furthermore, the preset threshold can be adjusted proportionally according to the type of parenteral nutrition solution and the total weight of the prescription. For neonatal parenteral nutrition solutions, the preset threshold range is no greater than ±3%.

[0014] The present invention has the following beneficial effects: (1) In view of the problems that existing visual verification methods rely on manual labor, are inefficient and prone to omissions, the present invention automatically reads the prescription QR code through a barcode scanning module and automatically parses the prescription information in combination with the prescription database, thus avoiding the tediousness and errors of manually checking the prescription content and greatly improving the verification efficiency.

[0015] (2) In view of the shortcomings of the weighing verification method, which can only confirm the weight but cannot automatically calculate and compare, the present invention automatically calculates the theoretical total weight based on the volume of each component of the prescription and the corresponding specific gravity parameters through the theoretical weight calculation module, thereby realizing the automatic association and calculation comparison of prescription information and avoiding the workload and error risk caused by manual calculation and comparison.

[0016] (3) In view of the shortcomings of existing review results which rely solely on manual judgment and lack objective standards, this invention automatically calculates the relative deviation through weight comparison and judgment module, gives an objective pass / alarm conclusion based on preset threshold, and presents it intuitively on the display screen with green / red markings, thus eliminating the uncertainty of human subjective judgment.

[0017] (4) In view of the problem that the existing verification process lacks complete records and is difficult to trace, the present invention automatically saves complete data such as prescription number, patient information, theoretical weight, actual weight, deviation value and verification conclusion for each bag through the data recording and traceability module. It supports the retrieval of historical records by time and prescription number, which meets the requirements of medical quality traceability and management. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a flowchart of the verification method of the present invention, which shows the complete operation process from system initialization to completion of bag-by-bag verification. Detailed Implementation

[0019] The following will be described in conjunction with embodiments of the present invention. Figures 1-2 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] like Figure 1 This invention proposes a verification system for finished parenteral nutrition solutions, comprising: (1) Weighing platform: L-shaped or arc-shaped chassis structure, used to carry finished parenteral nutrition bags (including infusion bags, parenteral nutrition bags and other containers of different specifications), equipped with electronic scale; a high-precision pressure sensor (precision ≤ 0.01g) is built into the bottom of the chassis, and the weighing range covers the weight of common parenteral nutrition bags (0~5000g). (2) Scanning module: The QR code / barcode scanner integrated on the right side of the main body can read the QR code on the prescription label attached to the finished parenteral nutrition solution bag and automatically extract patient information and prescription formula data; (3) Display screen: An LCD / touch screen (≥5 inches) placed on the back or upper side of the weighing platform to display the measured weight, theoretical weight, error value and verification conclusion in real time; when the verification is passed, a green background and "pass" mark are displayed, and when the error range is exceeded, a red background and "warning" mark are displayed. (4) Main control unit: The microprocessor and storage module embedded in the main body of the device run the verification software and complete data reception, calculation, comparison and recording; (5) Communication interface: It supports USB / RS232 serial port connection with host computer (PC), and can also be connected to hospital PIVAS information system via WiFi / Ethernet to realize real-time synchronization of formula database; (6) Power supply module: Supports 220V AC power supply, with built-in voltage regulator circuit to ensure that the weighing accuracy is not affected by power fluctuations; (7) Anti-vibration base: The bottom is equipped with anti-vibration rubber pads to reduce the interference of external vibration on the balance accuracy.

[0021] The verification software system of this invention is a parenteral nutrition solution verification software, deployed on a host computer (PC) connected to the weighing device. It adopts a modular architecture, and its main functional modules are as follows: 1. QR code reading and prescription parsing module: (1) Receive the QR code string from the scanning module; (2) Connect to the formula database stored in JSON format (JSON structure) and query the corresponding parenteral nutrition formula information according to the prescription number / patient ID in the QR code; (3) Extract and display the patient's basic information (name, hospital number, department, bed number) and prescription details (component name, specifications, and dosage); 2. Theoretical weight calculation module: (1) Calculate the theoretical total weight of the parenteral nutrition solution based on the actual amount (mL or mg) added to each component of the prescription and the specific gravity parameters of each solution; (2) Theoretical weight = weight of empty bag + weight of label + Σ (volume of each component × corresponding specific gravity); 3. Weight comparison and judgment module: (1) Real-time reading of the weighing weight data of the electronic scale (received via serial port protocol, supporting RS232 / USB virtual serial port); (2) Compare the measured weight with the theoretical weight, and calculate the absolute deviation and relative deviation; (3) Judgment criteria: A relative deviation ≤ ±1% (the threshold can be customized in the software parameter settings) is considered "pass" and exceeding it is "alarm"; (4) The results are displayed prominently on the screen in green (pass) or red (alarm); 4. Data Recording and Traceability Module: (1) After each verification operation, the following information is automatically recorded to the local database (SQLite) and log file: date and time, patient information, prescription number, theoretical weight, actual weight, deviation value, verification conclusion (pass / alarm), and operator's employee number; (2) Supports querying historical records by multiple dimensions such as date, patient, department, and conclusion type; (3) Supports exporting records to Excel format for easy quality management and reporting; 5. Database Management Module: (1) The formula database is stored in JSON files and includes fields such as: prescription ID, patient information, name / specification / dosage of each component, and prescription date; (2) Supports batch import of prescription data from HIS / PIVAS system, and can also be manually maintained in the software interface; (3) Built-in specific gravity parameter library, containing standard specific gravity values ​​of commonly used parenteral nutrition solution components such as amino acid injection, fat emulsion injection, glucose injection, and electrolyte injection, which can be manually modified; 6. System Settings Module: (1) Serial port parameter configuration (COM port selection, baud rate setting); (2) Error threshold setting (default ±1%, adjustable); (3) Operator account management; (4) Database path and backup settings.

[0022] like Figure 2 This invention also proposes a method for verifying the finished parenteral nutrition solution: Step 1: System Initialization. The dispatcher turns on the verification device, starts the parenteral nutrition solution verification software, and completes initialization operations such as serial port connection (normal communication between the electronic scale and the PC) and database loading (the prescription for the day has been imported from the PIVAS information system).

[0023] Step 2: Place the prepared parenteral nutrition solution on the weighing platform and record the weight, then scan the QR code. Place the prepared parenteral nutrition solution bag on the weighing platform and use the scanning module to scan the QR code on the prescription label affixed to the bag. The software automatically parses the QR code, retrieves and displays the corresponding prescription information and details of each component from the database.

[0024] Step 3: Theoretical weight calculation. The software automatically calculates the theoretical total weight of the parenteral nutrition solution based on the volume and specific gravity parameters of each component in the prescription, and displays it on the interface (e.g., "Theoretical weight: 486.3g").

[0025] Step 4: Obtain the measured weight. After the electronic scale stabilizes, the software reads the measured weight via the serial port (e.g., "Measured weight: 489.1g").

[0026] Step 5: Comparison and Judgment. The software calculates the relative deviation: |489.1-486.3| / 486.3×100%≈0.58%, which is less than the ±1% threshold. If the deviation is within this range, it is considered "passed," and the interface displays a green background and the "passed" message. If the deviation exceeds the threshold, a red alarm is displayed, prompting the reviewer to check the formula for errors. The preset threshold can be adjusted proportionally according to the type of parenteral nutrition solution and the total weight of the prescription. For neonatal parenteral nutrition solutions, the preset threshold range is no greater than ±3%.

[0027] Step 6: Data Recording. The verification results are automatically recorded to the database, including timestamps, patient information, theoretical / measured weight, deviations, and conclusions. No additional data entry is required from the operator.

[0028] Step 7: Continue to check the next bag, repeating steps 2-6 until all the finished parenteral nutrition solution in the batch has been checked.

[0029] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A verification system for finished parenteral nutrition solution, characterized in that, include: Weighing platform: installed on the device housing, used to hold and weigh the finished parenteral nutrition solution bags; The barcode scanning module is installed on the device housing and is used to scan the prescription label QR code on the finished parenteral nutrition solution bag to extract patient information and prescription formula data. Display screen: Located on the device housing and electrically connected to the main control unit, used to display prescription information, verification results and alarm indicators; Main control unit: includes microprocessor and storage module, runs verification software system, and completes data reception, calculation, comparison and recording.

2. The parenteral nutrition solution finished product verification system according to claim 1, characterized in that, The verification software system includes: The QR code reading and prescription parsing module is used to receive the QR code string from the scanning module; connect to the formula database stored in JSON format to query the corresponding parenteral nutrition formula information based on the prescription number in the QR code; and extract and display the patient's basic information and formula details. Theoretical weight calculation module: used to calculate the theoretical total weight of the parenteral nutrition solution based on the actual amount of each component added and the specific gravity parameters of each solution. Theoretical weight = empty bag weight + label weight + Σ (volume of each component × corresponding specific gravity); Weight comparison and judgment module: compares the measured weight with the theoretical weight, calculates the absolute deviation and relative deviation; when the relative deviation exceeds the preset threshold, an alarm is triggered and an alarm icon is displayed; when the relative deviation is within the preset threshold range, a pass icon is displayed. Data recording and traceability module: Records prescription number, patient information, theoretical weight, actual weight, deviation value, verification conclusion and verification time for each verification, and supports historical record retrieval and traceability by time range and prescription number.

3. The parenteral nutrition solution finished product verification system according to claim 1, characterized in that, The weighing platform is a precision electronic balance.

4. The parenteral nutrition solution finished product verification system according to claim 1, characterized in that, It also includes a communication interface, which includes at least one of USB, RS232, WiFi or Ethernet interfaces, for data interaction with the hospital information system or formula database server.

5. The parenteral nutrition solution finished product verification system according to claim 1, characterized in that, The display screen is a touch screen used to display prescription information, theoretical weight, actual weight, deviation value and verification conclusion in real time, and displays a green mark when the verification is successful and a red alarm mark when the verification fails.

6. The parenteral nutrition solution finished product verification system according to claim 1, characterized in that, It also includes a power module to provide a stable operating voltage for the weighing platform, barcode scanning module, main control unit and display screen.

7. A method for verifying the finished parenteral nutrition solution, characterized in that, include: Step 1: System initialization, loading the formula database, drug parameter database, and system configuration parameters; Step 2: Scan the prescription QR code, parse and extract the prescription number and patient information, and query the corresponding parenteral nutrition solution formula information from the formula database; Step 3: Calculate the theoretical weight. Based on the volume of each component in the prescription and the specific gravity of the corresponding solution, the formula is: Theoretical weight = weight of empty bag + weight of label + Σ (volume of each component × corresponding specific gravity); calculate the theoretical total weight of the finished parenteral nutrition solution. Step 4: Obtain the actual weight. Place the finished bag of parenteral nutrition solution on the weighing platform. After the weighing reading stabilizes, read and record the actual weight. Step 5: Compare and judge, calculate the relative deviation between the measured weight and the theoretical weight; when the relative deviation is within the preset threshold range, it is judged as passing, and the display shows a green pass mark; when the relative deviation exceeds the preset threshold, an alarm is triggered, and the display shows a red alarm mark. Step 6: Data recording. Prescription number, patient information, theoretical weight, actual weight, deviation value, verification conclusion and verification time are automatically saved to the database, supporting historical record retrieval and traceability. Step 7: Continue to check the next bag, repeating steps 2 to 6 until all the finished parenteral nutrition solution in the batch has been checked.

8. The method for verifying the finished parenteral nutrition solution according to claim 7, characterized in that, The preset threshold can be adjusted proportionally according to the type of parenteral nutrition solution and the total weight of the prescription. For neonatal parenteral nutrition solutions, the preset threshold range is no greater than ±3%.

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