CN210644745U

CN210644745U - Infusion pump control system

Info

Publication number: CN210644745U
Application number: CN201920566910.4U
Authority: CN
Inventors: 潘建; 孙芳
Original assignee: Juyi Kerui Medical Technology (shanghai) Co Ltd
Current assignee: Juyi Kerui Medical Technology Shanghai Co ltd; Zhonghong Medical Supplies Hainan Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-06-02
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses an infusion pump control system, which relates to the field of medical infusion, and comprises a main MCU, an auxiliary MCU, an LCD display screen, LED indicator lamps, a loudspeaker, a key, a motor, a coder and a double-pressure sensor system, wherein the double-MCU system is adopted to drive the motor together, and the two MCUs are mutually monitored to prevent one MCU from flying off, thereby ensuring the safety of the system, the double-pressure sensor system is adopted, one is arranged at the input end of the system infusion and the other is arranged at the output end of the system infusion, which has the advantages of improving the sensitivity and accuracy of the alarm, five three-color LED indicator lamps are used, when the system normally operates, the LED indicator lamps emit flashing green lamps, when the alarm is generated, the lamps with different colors are emitted according to different alarm levels, thereby facilitating the user to visually know the state of the system, the BLE protocol is adopted to assist the MCU, thereby providing a certain range of Bluetooth communication, the user can conveniently obtain related information on the system.

Description

Infusion pump control system

Technical Field

The utility model relates to a medical treatment infusion technical field especially relates to transfer pump control system.

Background

The venous transfusion is one of the important administration routes for clinical rescue and treatment, the venous transfusion technology has step development along with the medical development, some medical personnel mainly check the transfusion condition of patients at regular time by people at present, and even an intelligent transfusion pump system has the following defects; the single pressure sensor can not accurately alarm, can lead to failing to report police and wrong alarm, failing to report police and can lead to medical personnel not in time to handle, can lead to the disease to be in among the risk, wrong alarm then can lead to medical personnel to frequently handle, resources are wasted, function in the aspect of non-communication, be unfavorable for the information system management system's in later stage construction, present infusion system reports to the police and only voice prompt is buzzer sound, there is not the light signal suggestion, single MCU can lead to one kind probably single MCU system if collapse or procedure run away, the system can be in uncontrollable state, the risk that leads to monitored control system increases.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the background art exists, the utility model provides a safe effectual can adjust infusion speed and can real-time detection pipeline state (including the bubble, block up etc.) and can send out light, audible alarm's an infusion pump control system for the disease in the certain limit.

The utility model provides an infusion pump control system, including main MCU, supplementary MCU, LCD display screen, LED pilot lamp, loudspeaker, button, motor, encoder, two pressure sensor systems, its characterized in that main MCU passes through the intercommunication of general serial data bus with supplementary MCU, can realize full duplex transmission and receipt, and main MCU mainly is responsible for the drive of motor, LCD display screen, LED pilot lamp, loudspeaker, button, encoder, supplementary MCU is responsible for BLE communication and drives the motor with main MCU jointly, two pressure sensor systems, one is placed at the input of system's infusion, and one is placed at the output of system's infusion, can improve the sensitivity and the degree of accuracy of reporting to the police.

According to the further technical scheme, the model of the main MCU is STM32L476, and the model of the auxiliary MCU is CY8C 4247.

According to the technical scheme, the LED indicator lamp comprises five three-color LED lamps, when the system normally operates, the LEDs emit flashing green lamps, and when an alarm is generated, the LED lamps with different colors are emitted according to different alarm levels, so that a user can visually know the state of the system.

According to the further technical scheme, a mutual monitoring function is provided between the auxiliary MCU and the main MCU, one MCU is abnormal, the other MCU stops the infusion of the motor, and an alarm is given to ensure that the system is safe.

The utility model has the advantages that: the system adopts double MCUs, wherein 1 is a main MCU STM32L476, the other is an auxiliary MCU BLE, the main MCU and the auxiliary MCU jointly drive a motor, the auxiliary MCU and the main MCU provide mutual monitoring functions, one party is abnormal, the other party stops the infusion of the motor and gives an alarm to ensure that the system is safe for a user at the moment, the auxiliary MCU simultaneously provides a communication function within a certain range to facilitate the information management of a plurality of devices within a certain range in the later period, medical personnel can simultaneously detect the infusion condition of the plurality of devices through the information management system, the alarm prompt is a horn prompt and an LED indicator lamp display prompt, the light signals of the LED indicator lamps can be clearly seen by the user from four sides, the LED lamps have certain indication in the normal infusion process of the devices, and the user can clearly know whether the devices normally run at the moment, the system adopts double pressure sensors, the alarm sensitivity and accuracy can be improved, and prompt is timely sent out when the system pipeline is abnormal, so that false triggering cannot be generated, and resources of medical personnel are wasted.

Drawings

Fig. 1 is a structural diagram of a control system of an infusion pump according to the present invention.

Detailed Description

The present invention will be further explained with reference to the following embodiments.

Examples

Referring to fig. 1, an infusion pump control system comprises a main MCU (STM32L476), an auxiliary MCU (CY8C4247), an LCD display screen (2.8 ″ LCD), LED indicators (LED (GRY), a SPEAKER (SPEAKER), a Key (KEYPAD), an ENCODER (ENCODER), a dual PRESSURE sensor system, and a motor (M), wherein the MCU (STM32L476) and the auxiliary MCU (CY8C4247) are connected via a universal serial bus (UART), the bus is in bidirectional communication and can realize full duplex transmission and reception, the main MCU (STM32L476) is mainly responsible for the motor (M), the LCD display screen (2.8 ″ LCD), the LED indicators (LED (GRY), the SPEAKER (SPEAKER), the Key (KEYPAD), and the ENCODER (ENCODER), the auxiliary MCU (CY8C4247) is responsible for bluetooth (STM) communication and the motor (M) together with the main MCU (STM32L476), the dual PRESSURE sensor system, one of the dual PRESSURE sensor system is placed at an input end of the main MCU (pre 32L476), and one of the infusion system is placed at an infusion output end (8584), can improve the sensitivity and the degree of accuracy of reporting to the police, it is further LED pilot lamp (LED (GRY) uses five three-colour LED lamps, and when the system normal operating, LED sent the green lamp of scintillation, according to different warning grades when having the warning to produce, sent the LED lamp of different colours, convenience of customers directly perceived understanding system state.

When in specific use; the main MCU (STM32L476), the auxiliary MCU (CY8C4247) and hardware drive the motor (M) together, namely only the main MCU (SMT 32L476) outputs normally, the auxiliary MCU (CY8C4247) outputs normally, the hardware power supply (BATTERY) is normal, the motor (M) can work, otherwise the motor (M) can not work, the system can work safely to the maximum extent, and the working voltage and the working current of the motor (M) are continuously detected in real time, the working of the motor (M) is judged to be in a normal state at the moment, if the voltage or the current is abnormal, the operation of the motor (M) is stopped, the normal work of the system is ensured, after the system starts to work, two pressure sensors work, data are continuously transmitted and fed back to the main MCU (SMT 32L476) and the auxiliary MCU (CY8C4247), the main MCU (SMT 32L476) carries out algorithm judgment according to the numerical values of the two pressure sensors, the state in the pipeline or the state of the liquid storage device at the moment is judged, when an abnormality (bubble or blockage) occurs in the pipeline, the system provides a synchronous prompt through a loudspeaker (SPEAKER) sound and an LED indicator lamp (LED (gry)), and suspends infusion, and clearly displays what kind of alarm is at the moment on an LCD display screen (2.8P & lt- & gt LCD), so as to prompt a user that the alarm is generated and infusion is stopped, if a liquid storage device falls off or is not clamped during infusion, a main MCU (SMT 32L476) can judge and send out an alarm signal according to a pressure feedback value so as to prompt the user and stop infusion, and during the whole infusion process, the infused quantity in a single infusion process can be displayed on the LCD display screen (2.8P & lt- & gt LCD), and the resolution of the infusion quantity is displayed to be 0.1 ml.

The double-PRESSURE sensor system has the advantages that the double-PRESSURE sensor system can improve the sensitivity and accuracy of alarm, can accurately and timely give out alarm such as blockage, bubbles, falling off or no clamping of a liquid storage device and the like, can measure the size of the bubbles, can identify the size of the bubbles according to a plurality of PRESSURE data acquired by each circle, is only suitable for the bubbles larger than 50ul, supports the automatic exhaust function, and considers that the exhaust is finished if no bubbles above a certain threshold value are continuously detected when the equipment exhausts; through detecting two pressure sensor's change, can judge the end of infusion, use five tristimulus LED pilot lamps (LED (gry), when the system normal operating, LED pilot lamp (LED (gry) send the green lamp of scintillation, according to different warning grades when having the warning to produce, send the lamp of different colours, convenience of customers understands system state directly perceivedly, adopt Bluetooth (BLE) to provide the communication of certain limit for assisting MCU (CY8C4247), convenience of customers looks over system relevant information, adopt two MCU systems, two MCU drive motor jointly, and two MCU monitor each other through serial ports communication protocol (uart), prevent that any one of them MCU from running the condition that flies and taking place, guarantee the security of system.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an infusion pump control system, including main MCU, supplementary MCU, LCD display screen, LED pilot lamp, loudspeaker, button, motor, encoder, two pressure sensor systems, its characterized in that main MCU passes through the intercommunication of general serial data bus with supplementary MCU, can realize full duplex transmission and receipt, and main MCU mainly is responsible for the drive of motor, LCD display screen, LED pilot lamp, loudspeaker, button, encoder, supplementary MCU is responsible for BLE communication and drives the motor with main MCU jointly, two pressure sensor systems, one is placed at the input of system's infusion, and one is placed at the output of system's infusion, can improve the sensitivity and the degree of accuracy of reporting to the police.

2. An infusion pump control system according to claim 1, wherein the main MCU model is STM32L476 and the auxiliary MCU model is CY8C 4247.

3. The infusion pump control system according to claim 1, wherein the LED indicator light is five three-color LED lights, and when the system is in normal operation, the LED lights emit flashing green lights, and when an alarm is generated, the LED lights emit different colors according to different alarm levels, so that a user can visually know the state of the system.

4. The infusion pump control system according to claim 1, wherein the auxiliary MCU and the main MCU provide a mutual monitoring function, wherein one MCU is abnormal and the other MCU stops the infusion of the motor and alarms to ensure that the system is safe.