Multifunctional intelligent infusion device and method

Abstract

The invention discloses a multifunctional intelligent infusion device and method, and the device comprises a device circuit board, a bar code scanning module, a weight measuring module, a communication assembly, a temperature control assembly, an infusion liquid control assembly, a man-machine interaction module, a PC terminal equipped with an application program, and a mobile terminal. All the modules monitor various real-time data and control adjustment in the current infusion process and send all the monitoring and control data to the PC terminal, the mobile terminal and the man-machine interaction interface to be displayed. Sensors and the Internet of Things technology are combined, monitoring amount changes and control devices in the infusion process can be automatically monitored, and the intelligent infusion monitoring system has the advantages that the intelligent infusion monitoring system is simple in structure and convenient to use. And data can be displayed and stored at multiple terminals, infusion medicines can be automatically switched, control and management can be carried out through man-machine interaction, the workload of medical staff can be reduced, discomfort and anxiety of patients in the infusion process can be reduced, and the treatment and management efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent medical equipment, and in particular to a multifunctional intelligent infusion device and method. Background Art

[0004] Currently, medical infusion monitoring equipment has a single function, unstable precision and sensitivity, low reliability, low automation and intelligence, and the performance of the equipment does not meet the standards for actual use, so it has not yet been widely used.

[0005] Therefore, a smart medical infusion device with higher requirements is needed. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a multifunctional intelligent infusion device and method, which utilizes the information obtained by monitoring the infusion to achieve real-time adjustment and control of the infusion speed and remaining time.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The multifunctional intelligent infusion device provided by the present invention comprises a main controller and an infusion liquid control component, a weight measurement module, a temperature control component, a communication component, and a human-computer interaction module respectively connected to the main controller;

[0009] The weight measuring module is used to monitor the remaining liquid weight in real time;

[0010] The communication component is used to receive and send information;

[0011] The temperature control component is used to measure the temperature and heat the liquid in the infusion tube;

[0012] The infusion liquid control assembly is used to adjust the liquid titration speed of the burette by measuring the liquid titration number;

[0013] The infusion liquid control assembly includes a drip rate measurement and valve control module, wherein the drip rate measurement is used to count the number of liquid titrations, and the valve control module is used to control the degree of valve opening and closing to squeeze the infusion tube to adjust the liquid titration speed of the burette;

[0014] The human-computer interaction module is used to receive and display information transmitted from the main controller.

[0015] Furthermore, the valve control module includes a reduction motor with an encoder and a valve structure, and the valve control module is driven by a motor drive module; under the control of the main controller, the motor drive module adjusts the valve structure through the reduction motor with an encoder, and controls the opening and closing degree of the infusion tube through the change of the valve structure.

[0016] Further, the valve structure includes a wire winding reel and a clamp;

[0017] The wire winding drum is arranged on the rotating shaft of the reduction motor, and the wire winding drum is connected to the clamp through a rope. When the reduction motor rotates to drive the winding drum to rotate, the rope drives the opening and closing of the clamp by contraction or extension; the flow rate of the liquid is controlled by squeezing the infusion hose to different degrees by the clamp.

[0018] Further, the weight measuring module includes a hook-type tension sensor and an analog-to-digital conversion module;

[0019] The hook-type tension sensor obtains the weight of the infusion device, and sends the weight data to the main controller after passing through the analog-to-digital conversion module.

[0020] Furthermore, the temperature control component includes a heating module and a temperature monitoring module; the heating modules are arranged on both sides of the infusion tube to heat the liquid in the infusion tube; the temperature monitoring module is arranged at the outlet of the infusion tube to measure the temperature of the liquid entering the human body after heating.

[0021] Furthermore, it also includes a barcode scanning module, which is used to determine current infusion information by scanning the barcode on the infusion device; and send the infusion information to the main controller; the infusion information includes infusion drug information.

[0022] Furthermore, the liquid titration number is measured by a dripping rate measurement module.

[0023] Furthermore, the main controller is provided with an information checking unit, a titration amount calculating unit, a titration speed calculating unit, a current infusion progress calculating unit, and a remaining infusion time calculating unit;

[0024] The information checking unit is used to check the infusion information with the preset infusion information and generate and output the checking result information;

[0025] Each calculation unit performs calculation according to the following formula:

[0026] V d =N*V s , V d represents the titration amount, N represents the titration number, V s Represents the volume of a drop of liquid.

[0027] The titration rate, R d Indicates the titration rate, T d Indicates titration time.

[0028] P represents the current infusion progress, Vt Total volume of fluid infused.

[0029] Estimate the remaining infusion time, T r Indicates the remaining infusion time.

[0030] The infusion method provided by the present invention using the multifunctional intelligent infusion device comprises the following steps:

[0031] Confirm the infusion drug information and compare it with the patient's information. If it does not meet the requirements, an alarm will be sounded; if it meets the requirements, the device will be started to start infusing according to the preset mode;

[0032] Obtain the liquid temperature and determine whether heating is required. If not, the device prohibits the use of the heating module; if yes, the heating temperature control component is started to perform heating control; and the liquid temperature information is sent to the main control module;

[0033] Get the weight information of the liquid and determine whether the valve needs to be closed. If yes, close the valve; if no, return to continue to get the weight information of the liquid; and send the liquid temperature information to the main control module.

[0034] Further, the method further comprises the following steps:

[0035] When the liquid weight value measured by the weighing module changes less than a preset threshold over a period of time, an alarm signal is issued.

[0036] The beneficial effects of the present invention are:

[0037] The present invention provides a multifunctional intelligent infusion device and method, which includes: a device circuit board, a barcode scanning module, a weight measurement module, a communication component, a temperature control component, an infusion liquid control component, a human-computer interaction module, a PC terminal and a mobile terminal installed with an application program, each module monitors various real-time data and control adjustments during the current infusion process, and sends all monitoring and control data to the PC terminal, the mobile terminal and the human-computer interaction interface for display. The present invention combines sensors and Internet of Things technology, can automatically monitor the changes in various monitoring quantities and control devices during the infusion process, and can display and store data on multiple terminals, automatically switch infusion drugs, and can also be controlled and managed through human-computer interaction, which can reduce the workload of medical staff and the discomfort and time anxiety of patients during the infusion process, and improve the efficiency of treatment and management.

[0038] This device realizes the informatization, visualization and intelligence of the infusion system. It is a multifunctional smart medical device that meets the higher requirements for infusion, a common treatment method, and promotes the substantial improvement of hospital management efficiency and the quality of patients' infusion treatment. It lays the foundation for the intelligent and standardized development of hospital infusion treatment control. It provides patients with a more comfortable infusion environment and reduces the risk of complications caused by low infusion temperature. It reduces the affairs of medical staff to a certain extent, while allowing patients to rest at ease and have a better recuperation environment.

[0039] This device uses a drip sensor and multiple hook tension sensors to collect infusion information, and can monitor the remaining liquid volume, drug drip rate, infusion blockage, drug leakage and other abnormal phenomena in real time. The current infusion volume and infusion progress can be judged by the information of the two. It can effectively improve the accuracy and credibility of the data. In addition, the hook structure adopted allows users to place the infusion bag on the hook for detection, which is easy to use. Similarly, in terms of communication with the PC, wireless communication of the WiFi module and wired communication of the serial port module are used for data transmission. While ensuring communication, the two communication methods compare the data obtained by the two methods to prevent data garbled and missing, ensure data accuracy, and ensure the integrity of data transmission. There are also advantages such as opening and closing valves to switch infusion drugs, controlling infusion speed and automatically switching infusion drugs, controlling infusion temperature to reduce the tingling sensation during the infusion process, and accurately scanning drug information to prevent medical accidents caused by wrong drug taking. For medical staff managing the PC side, the infusion information of patients sent by different infusion devices is collected and displayed and stored through software, and can be efficiently and orderly managed through sorting, searching, etc.

[0040] This device combines sensor technology with Internet of Things technology. It can automatically alarm, switch infusion drugs, monitor various data during the infusion process, estimate the infusion progress and the expected infusion completion time and display them. It can greatly alleviate the patient's need for frequent monitoring and checking by medical staff, alleviate the infusion burden and improve the infusion efficiency of nursing staff by optimizing the infusion speed and infusion temperature, reduce the burden on patients' families and medical staff, and the heating module can improve the patient's infusion experience and has good application value.

[0041] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for explanation.

[0043] Figure 1 This is the principle block diagram of the multifunctional intelligent infusion device.

[0044] Figure 2 It is the external structure of the intelligent infusion system device.

[0045] Figure 3 It is the internal structure of the intelligent infusion system device.

[0046] Figure 4 It is the valve control module structure.

[0047] Figure 5 Installation structure for drip rate measurement.

[0048] Figure 6 It is a temperature control component structure.

[0049] Figure 7 This is the effect implementation diagram of the PC software.

[0050] Figure 8 This is the effect implementation diagram of the mobile software.

[0051] Fig. 9 Human-computer interaction module - initial interface of the display screen.

[0052] Fig.10 Human-computer interaction module—display screen main page.

[0053] Fig.11 Human-computer interaction module - display screen drip speed adjustment interface.

[0054] Fig.12 Human-computer interaction module - display screen temperature adjustment interface.

[0055] Fig.13 The figure is a flow chart of the multifunctional intelligent infusion method.

[0056] In the figure, infusion tube 1, display screen 2, barcode scanning module 3, alarm button 4, power switch 5, adjustment button 6, QR code 7, serial communication line 8, Y-type equal diameter three-way hose 9, Mofei burette 10, drip sensor 11, silicone rubber heating plate 12, temperature measurement sensor 13, power adapter 14, hook-type tension sensor 15, device circuit board 16, valve 17, reduction motor with encoder 18, cable reel 19, clip 20, nylon rope 21. DETAILED DESCRIPTION

[0057] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0058] Example 1

[0059] like Figure 1 , Figure 2 , Figure 3 As shown, the multifunctional intelligent infusion device provided in this embodiment includes a main controller and an infusion liquid control component, a weight measurement module, a temperature control component, a communication component, a human-computer interaction module, and a barcode scanning module respectively connected to the main controller; the device also includes a PC terminal and a mobile terminal with application programs installed;

[0060] The infusion liquid control component is used to adjust the liquid titration speed of the burette by measuring the liquid titration number; the infusion liquid control component includes a dripping speed measurement module and a valve control module, the dripping speed measurement module is used to count the titration number, and the valve control module is used to control the opening and closing degree of the valve to squeeze the infusion tube to adjust the liquid titration speed of the burette;

[0061] The drip rate measurement module is installed at the Moffitt burette to provide a basis for valve control. The valve control corresponding structure is installed at the infusion hose under the infusion bag or infusion bottle and is driven by the motor drive module.

[0062] The dripping speed measurement module of the present embodiment detects the dripping of droplets through the conductivity between two infrared diodes. When the sensor is powered on, the infrared diode transmitting tube emits infrared rays of fixed frequency under the drive of the power supply, and the infrared rays pass through the two tubes and are received by the receiving tube. When no droplets drip, the two infrared diodes are in an obstacle-free conduction state and continuously output high-level signals; when a droplet passes between the two infrared diodes, the emitted infrared signal is refracted, the conductivity between the infrared diode pairs is reduced, and the receiving tube cannot receive the infrared signal. A pulse signal is generated when each drop of liquid passes, that is, a drop of water is generated once, a pulse is output once, and a high and low level change is generated.

[0063] The valve control module includes a reduction motor 18 with an encoder and a valve structure. The valve control module is driven by a motor drive module. Under the control of the main controller, the motor drive module adjusts the valve structure through the reduction motor with an encoder, and controls the opening and closing degree of the infusion tube through the change of the valve structure.

[0064] like Figure 4As shown, the valve structure includes a wire winding drum 19, a clamp 20, and a nylon rope 21; the wire winding drum is arranged on the rotating shaft of the reduction motor, and the wire winding drum is connected to the clamp through the nylon rope. When the reduction motor rotates, driving the winding drum to rotate, the length of the nylon rope is constant, and the nylon rope will eventually tighten and pull the clamp to open through the rotation of the motor. The degree of opening is determined by the rotation amplitude of the motor. When the motor reverses, the nylon rope will gradually relax. Due to the rebound characteristics of the clamp itself, the clamp will automatically close, and finally the flow rate of the liquid is controlled by squeezing the infusion hose to different degrees through the clamp 20.

[0065] In this embodiment, a reduction motor with an encoder is used to apply torque to the winding drum, and the torque is transmitted to the clamp to monitor the opening and closing degree of the infusion tube, and the pulse is read by the encoder to monitor the opening and closing degree of the clamp.

[0066] In this embodiment, the infusion bag or infusion bottle is connected by an infusion tube and a Y-shaped equal-diameter three-way hose, so that various infusion drugs on the device can be transported through the same infusion tube, thereby simplifying the structure and saving space.

[0067] The main controller is arranged on the device circuit board, and the device circuit board is used to integrate relevant electronic devices to realize corresponding control and data processing functions; the main controller in this embodiment is an STM32F103RCT6 chip; the motor drive unit and the heating unit both use TB6612 series drive chips; the analog-to-digital conversion module uses a 24-bit HX711A / D converter chip, and the data and sending and receiving units use ESP-01S and CH340 modules; the sound and light indication module uses an active buzzer to emit sound and a patch LED to emit an optical signal; the temperature measurement module uses an LM75BD chip;

[0068] The weighing module is used to monitor the weight of the remaining liquid in real time; the weighing module includes a hook-type tension sensor and an analog-to-digital conversion module; the hook-type tension sensor obtains the weight of the infusion device, and sends the weight data to the main controller after passing through the analog-to-digital conversion module. The weighing module is installed at the hook above the infusion bag or infusion bottle, connected to the analog-to-digital conversion module and connected to the main controller. The weighing module is installed on the hook of the infusion stand and is connected to the infusion bag through the hook;

[0069] The temperature control component includes a heating module and a temperature monitoring module. The heating modules are arranged on both sides of the infusion tube to heat the liquid in the infusion tube; the temperature monitoring module is arranged at the outlet of the infusion tube to measure the temperature of the liquid entering the human body after heating.

[0070] The heating module adopts a silicone rubber heating plate, which is installed on the patient's arm, and the infusion tube is clamped by two silicone rubber heating plates. The temperature monitoring module adopts a temperature measurement sensor, which is closely attached to the infusion tube at the outlet of the silicone rubber heating plate, and is used to measure the temperature of the liquid in the infusion tube after heating. The silicone rubber heating plate in this embodiment is mainly composed of a nickel-chromium alloy heating wire and a silicone rubber high-temperature insulation layer. By heating the infusion liquid in the infusion tube, the stinging sensation caused by too low temperature during the infusion process is reduced.

[0071] The communication component is used to receive and send information; the information includes information sent by the weight measurement module and the temperature control component human-computer interaction module; the communication component includes a WiFi module and a serial port module; the WiFi module and the serial port module respectively remotely receive and send information, wherein the WiFi module is for remote communication, and the serial port module is for wired connection, and the serial port module can serve as a backup and guarantee for WiFi communication; the WiFi module communicates wirelessly with the PC through the same WiFi signal; the serial port module connects the main controller to the PC by wire, and exchanges data through serial communication, and dual-channel communication ensures the stability and accuracy of data transmission.

[0072] The human-computer interaction module is used to receive information from the main controller and display it, and to manually control the corresponding functions by touching the operation, or to send instructions to the main controller through the virtual buttons on the screen to control each module accordingly; the human-computer interaction module is a capacitive touch screen; the PC end is installed on the computer of the nurse's workstation; the mobile end requires family members or patients to scan the QR code on the corresponding device through a mobile device to access the applet. The information verification unit is used to verify the infusion information with the preset infusion information and generate and output the verification result information.

[0073] The human-machine interaction module works through a capacitive touch screen installed on the outside of the device box to display various information and control the infusion status. For the human-machine interaction interface module, a capacitive touch screen is used, which communicates with the main controller through the serial port protocol. The main controller sends the current monitoring data to the display screen at regular intervals and displays it on the screen. Medical staff, patients and their families can adjust the infusion speed and heating temperature through buttons on the screen, and it has an alarm emergency call function. The screen can also display relevant information about the patient and information about the drugs being infused.

[0074] In this embodiment, multi-source information is displayed on the PC and mobile terminals. For example, the PC software of the nurse station will display the information of the personnel receiving infusion (name, gender, age), infusion drugs, infusion speed, infusion temperature, valve opening and closing, infusion progress, estimated remaining infusion time and other equipment operation information on different beds, and sort them from fast to slow according to the estimated remaining infusion time, which is convenient for the medical system to coordinate subsequent patient visits and arrange for medical staff to stop the operation of the device, and improve the efficiency of hospital overall planning. The mobile terminal can display the same information as the PC terminal in the form of a small program, which is convenient for patients and their relatives to observe the current infusion situation in real time, and alleviate the anxiety caused by the lack of understanding of the infusion situation of patients and their relatives in the hospital.

[0075] The barcode scanning module is used to determine the drug information of the current infusion by scanning the barcode on the infusion drug; the barcode scanning module is installed just above the device box to facilitate scanning the infusion drug information. The barcode scanning module uses the MJ-6000 module, which continuously scans the barcode in front of the camera by pressing the button, with accurate recognition, additional fill light, and stable performance. The collected barcode data is sent to the main controller in the form of serial communication (TTL) for comparison to determine whether the drug information is correct and prevent the occurrence of medical accidents.

[0076] Each hardware module in the infusion device provided in this embodiment is directly or indirectly connected to the main control chip; it is monitored and controlled by the main controller, and sends various types of data to the PC, mobile terminal, human-computer interaction module, and receives and processes instructions from each terminal.

[0077] The PC end is used to collect information sent by the communication component of the infusion device, and can be arranged according to needs on the software interface, such as by default bed number, remaining infusion time, infusion progress, patient age, etc. If a patient in a bed presses the emergency call button on the device, the corresponding bed call information will be displayed on the software interface until the nurse arrives at the patient's infusion bed and presses OK on the touch screen to cancel the notification. The mobile end is accessed through the mini-program on the mobile phone. Both are used for information display. In particular, the PC-end software can manage multiple devices in a unified manner. The information in the mobile mini-program is sent from the PC end, and the information scanned from the corresponding bed QR code can only be the information of the current infusion patient. This type of information is mainly used for accompanying personnel such as family members and is only for viewing.

[0078] The main controller transmits data to the PC through the communication component, and then sends it to the mobile terminal via the PC; the PC software is installed on the computer working at the nurse's station, and the mobile terminal obtains the mini-program by scanning the QR code on the device; the various modules on the device are used to monitor the real-time liquid drip rate, infusion tube heating temperature, remaining amount of infusion bottle, valve opening and closing status, and control the liquid drip rate and infusion tube heating temperature during the current infusion process, and all the above monitoring data and control data are sent to the PC, mobile terminal and the human-computer interaction interface - display screen through the communication component for data visualization, storage and abnormality detection.

[0079] The main controller in this embodiment is provided with an algorithm processing program that implements the above functions through logic programming, so as to achieve control of each module of the device and even the entire operation process of the device;

[0080] For algorithm processing, it mainly counts the number of infusion liquid titrations, calculates the infusion progress, calculates the peeling of the hook itself, and software IIC communication (Inter-Integrated Circuit, integrated circuit bus) and liquid weight filtering, the main controller counts the number of titrations, and calculates the titration amount and titration speed based on the number of titrations. The calculation formulas are as follows: the titration number multiplied by the volume of a drop of liquid to obtain the titration amount; the titration number divided by the corresponding time to obtain the titration speed, and then the current infusion progress and the remaining infusion time are obtained by dividing the ratio of the titration amount to the total volume of the infusion liquid and the remaining infusion liquid volume (total volume of the infusion liquid-titration amount) by the titration speed; the hook itself is peeled for calculation, that is, the weight of the unhung object measured a few seconds before the measuring device is powered on, so that the weight measured after the object is hung is subtracted from the weight of the unhung object to obtain the remaining liquid weight, so as to prevent the hook's own weight from being counted into the liquid weight; the corresponding sensor in the temperature monitoring is converted to high and low levels, and the temperature data is obtained by software IIC communication; the liquid weight measurement is software filtered to prevent data errors caused by excessive jitter by filtering out the weight value that suddenly increases or decreases; the corresponding calculation steps and formulas are as follows:

[0081] When the medical system prescribes infusion drugs for the patient, the computer terminal of the nurse station queries the database and sends the corresponding total weight of the drugs, total liquid mass and total volume of the infusion liquid to the main control device. After the drip sensor 11 starts counting, the formula is:

[0082] Calculate the titration amount based on the titration number, V d =N*V s , V d represents the titration amount, N represents the titration number, V s Represents the volume of a drop of liquid.

[0083] The currently input drug volume - titration amount is obtained; the titration number is also calculated using the formula:

[0084] Calculate the titration rate based on the titration number. The titration rate, R d Indicates the titration rate, T d Indicates titration time;

[0085] Then the current infusion progress is estimated by the titration amount, the formula is:

[0086] The current infusion progress is calculated by the ratio of the titration amount to the total volume of the infusion fluid.

[0087] P represents the current infusion progress, V t Total volume of fluid infused.

[0088] Finally, based on the above information, the remaining infusion time is obtained by dividing the remaining infusion liquid volume (total infusion liquid volume - titration amount) by the titration speed. The specific formula is as follows:

[0089] Estimate the remaining infusion time, T r Indicates the remaining infusion time.

[0090] The multifunctional intelligent infusion device circuit board provided in this embodiment also includes a power supply unit and a voltage conversion unit; the battery power supply unit includes: an 11.1V power type 3S lithium battery or a 12V power adapter; the voltage conversion unit: a TPS5450 chip; the main controller is used to control and detect the operation of the device, send data and receive instructions, and determine whether the infusion process is abnormal, as follows:

[0091] The main controller starts the external interruption. If the sensor at the Moffitt burette does not trigger the external interruption for a long time or the value measured by the weight measurement module changes slightly over a period of time, the infusion tube below the Moffitt burette is blocked or the liquid medicine above is leaking;

[0092] Or if the titration amount after integral calculation is less than a certain threshold value compared to the infused liquid amount obtained by weight measurement, it is also possible that the liquid is leaking; if the titration amount after integral calculation is close to the infused liquid amount obtained by weight measurement at the beginning, the infusion is completed;

[0093] According to the monitoring situation, the infusion blockage, drug leakage and infusion completion signals are sent respectively.

[0094] The circuit board of the device in this embodiment is provided with an acoustic and optical indication module, a motor driving module, and an analog-to-digital conversion module.

[0095] The sound and light indication module prompts relevant information by emitting sound and light.

[0096] The motor driving module is used to drive the motor and heat the infusion liquid.

[0097] The analog-to-digital conversion module is used to convert the information of the weighing module into usable data.

[0098] like Figure 5 As shown, the drip sensor 11 corresponding to the drip rate measurement module is placed at the Maupe burette 10; the temperature control component is a combination of a silicone rubber heating plate 12 and a temperature measurement sensor 13; the hook-type tension sensor 15 corresponding to the weight measurement module is placed at the top of the device to suspend and measure the infusion drugs; the barcode scanning device 3 is placed above the device box structure to scan the information of the infusion drugs; each module on the device is used to monitor the real-time liquid drip rate, infusion tube heating temperature, infusion bottle remaining amount, valve opening and closing status, and control the liquid drip rate and infusion tube heating temperature during the current infusion process, and all the above monitoring data and control data are sent to the PC, mobile terminal and human-computer interaction interface-display screen through the communication component for data visualization, storage and abnormality detection, which can be viewed by medical staff, patients and family members respectively.

[0099] In this implementation case, the barcode scanning module 3 is placed above the device box. Its function is to scan the barcode of the medicine on the infusion bag or infusion bottle to obtain the medicine information. The MJ-6000 module is used. After pressing the scan button on the module, the medicine information is sent to the main controller through the serial port. The main controller compares the scanned medicine information with the medicine information sent from the PC to determine whether the infusion medicine is taken by mistake.

[0100] In this embodiment, in addition to the main controller, the device circuit board 16 also includes an analog-to-digital conversion module, a motor drive module, a power module, and an audio-visual indication module. The hook-type tension sensor used in the weighing module is installed on the hook-type tension sensor 15. After passing through the analog-to-digital conversion module on the device circuit board 16, the main controller obtains the weight data.

[0101] The main controller is a STM32F103RCT76 chip, the motor drive unit uses a TB6612 driver chip, the analog-to-digital conversion unit is a 24-bit HX711AD conversion chip, and the sound and light indication module uses a SMD LED and an active buzzer, which can reflect the working status of the infusion system. The two LED lights respectively reflect the power supply status and alarm status of the device. When they light up, it means that the current power supply is normal or the device is alarming. The end of infusion or the alarm is abnormal will also be reminded by the sound of the buzzer.

[0102] In the present implementation case, the valve structure includes a wire winding drum 19 and a clamp 20; the infusion tube 1 is controlled by a reduction motor 18 with an encoder and a nylon rope. The fixed reduction motor rotates to provide torque to rotate the wire winding drum, and the nylon rope wound on the wire winding drum contracts or stretches to drive the opening and closing of the clamp. The clamp 20 squeezes the infusion tube to different degrees to achieve the purpose of controlling the flow rate of the liquid and switching the medicine. The motor's own encoder is used to obtain the rotation angle of the wire winding drum corresponding to the motor, and the opening and closing are accurately controlled according to the angle. When the liquid in the first infusion bag or infusion bottle is input, the valve corresponding to the next infusion medicine is opened in turn. After the infusion is completed, all valves rotate back to the initial state-closed.

[0103] Similarly, while the valve controls the opening and closing of the liquid in the infusion tube, it can also control the liquid dripping rate by the degree of opening and closing of the clamp to control the infusion speed. When the patient feels that the infusion speed is too slow, the dripping speed can be increased by the touch button or mechanical button on the human-computer interaction interface.

[0104] The multifunctional intelligent infusion device in this embodiment also includes heating the infusion tube. Figure 6 In the figure, the entire heating device is wrapped around the patient's forearm with tape to heat the infusion liquid before it is input into the human body. The silicone rubber heating plate 12 of the corresponding heating module is connected to the motor drive module TB6612 of the circuit board. The main controller adjusts the output of the corresponding voltage through PWM (Pulse-Width Modulation) to heat the heating module - the silicone rubber heating plate to the corresponding temperature. When the patient thinks the temperature is too low, the temperature can be increased like adjusting the liquid dripping rate, and the heating condition is monitored by the temperature measurement sensor 13.

[0105] In this implementation case, the human-computer interaction module uses a capacitive touch display screen 2, which can perform human-computer interaction, such as Figure 9-12As shown, clicking a certain point on the screen will trigger a pop-up event to send a serial port signal (TTL) to the main controller, and can also receive signals through the serial port and respond. After the display screen receives the signal from the main controller, it displays text and data on the screen for visual display. After the PC sends the corresponding information to the main controller, patients and medical staff can see the current drug information, patient name, age, gender and past medical history, as well as precautions, such as whether the current infusion drug can be heated, as well as the current infusion speed, heating temperature and infusion progress, expected completion time and other key information, so that medical staff and patients can fully understand the current infusion status. Patients have a holistic understanding of drug information, infusion speed, expected infusion completion time, infusion temperature, and infusion speed. Information such as the expected infusion completion time can greatly alleviate patients' time anxiety, and also provide medical staff with patient and drug information to reduce medical accidents caused by busy work, such as taking the wrong drug, not paying attention to the patient's past medical history, failing to change the infusion drug in time, or pulling out the infusion device to cause blood return, etc., which can effectively reduce medical disputes and improve the work efficiency of medical staff.

[0106] In this embodiment, the hook-type tension sensor used in the weight measurement module is installed on the hook. After passing through the analog-to-digital conversion module on the device circuit board 16, the main controller obtains the weight data. The specific method is as follows: two seconds before the device initialization timing is turned on, the hook-type tension sensor 15 obtains the fur weight. Two seconds later, the infusion bag or infusion bottle is hung on the hook-type tension sensor 15 to obtain the weight, and the current weight is subsequently monitored. The fur weight is subtracted from the current weight to obtain the actual weight.

[0107] In this implementation case, the liquid in the infusion tube after being controlled by the valve is collected into the main pipe through the Y-tube 5, which is conducive to unified monitoring, reduces waste of resources and saves space.

[0108] In this implementation case, the power supply is through a power adapter or an 11.1V power 3S lithium battery, and the 12V voltage is input, and then the 12V is converted into 5V and 3V voltages respectively through voltage conversion to meet the normal working voltage requirements of each module on the device. The voltage conversion module uses the TPS5450 chip, which has stable and safe voltage conversion.

[0109] The main control chip is connected to the computer server through the WiFi communication module. The WiFi communication module uses the ESP-01S series of Internet of Things chips, which are low in price, stable in performance, have the characteristics of unlimited communication data transmission and data reception, are simple and open, have low requirements on network conditions, and have stable performance. The main control chip sends AT commands through the serial port (TTL), configures the WiFi module as Client (client mode), and the PC as Sever (server). The two are under the same WiFi. The WiFi module is connected to the IP and port number provided by the Sever (server mode) to transmit data. When there are multiple WiFi modules connected to the Sever (server) as Client (client mode), the Sever (server) can perform one-to-many unified management of multiple devices.

[0110] The multifunctional intelligent infusion device provided in this embodiment has a PC software installed on the nurse's computer. The PC software operation interface is as follows: Figure 7 As shown; the software running interface of the mobile terminal is as follows Figure 8 As shown, the mobile terminal can obtain the mini program by scanning the QR code 7 on the device;

[0111] In this implementation case, Figure 7 After receiving the data, the PC can sort them by bed number, patient name, age, gender, expected infusion completion time, etc. It can also display the alarm information and abnormal conditions of each bed device and notify medical staff to deal with it, which is conducive to the coordinated dispatch of human and material resources by medical staff.

[0112] Similarly, the small program scanned by the QR code 7 of the corresponding device on the mobile terminal displays the current patient's bed number, patient name, age, gender, estimated remaining time of infusion and other information, providing remote monitoring for the patient's relatives and friends and reducing unnecessary personnel accompaniment.

[0113] Example 2

[0114] like Fig.13 As shown, this embodiment provides a multifunctional intelligent infusion method, comprising the following steps:

[0115] Confirm the infusion drug information and compare it with the patient's information. If it does not meet the requirements, an alarm will be sounded; if it meets the requirements, the device will be started to start infusing according to the preset mode;

[0116] Obtain the liquid temperature and determine whether heating is required. If not, the device prohibits the use of the heating module; if yes, the heating temperature control component is started to perform heating control; and the liquid temperature information is sent to the main control module;

[0117] Get the weight information of the liquid and determine whether the valve needs to be closed. If yes, close the valve; if no, return to continue to get the weight information of the liquid; and send the liquid temperature information to the main control module.

[0118] The specific detailed steps of the multifunctional intelligent infusion method provided in this embodiment are as follows:

[0119] S1 is mainly powered by a 12V power adapter connected to a socket. If it is to be used as a mobile device, a lithium battery can be used for power supply. After the device power is turned on, the device receives the patient information and drug information sent from the PC, and the display screen 2 displays the initial interface 9.

[0120] The medical staff selects the drug information interface to enter the infusion drug information, then presses the barcode scanning module 3 to scan the infusion drug, compares the corresponding barcode information with the drug information received from the PC, determines whether the information is correct, and sends the drug information to the display screen 2. If the drug information does not correspond to what the patient needs, an error is prompted on the human-computer interaction module - display screen 2, and the buzzer on the circuit board is used to respond to remind the medical staff. If the information is correct, the required infusion drug is hung on the device hook to measure the initial weight, such as Fig.10 , the display screen changes to the main page, which is used to view key information and switch interfaces.

[0121] S2, after the previous step is confirmed to be correct, the valve 17 clamps the infusion tube 1; the corresponding valve 17 of the infusion tube inserted with the infusion drug is opened, the hook tension sensor 15 monitors the weight data of the infusion bag or infusion bottle in real time, the drip sensor 11 turns on the external interrupt through the main controller to monitor the number of drips, and after the silicone rubber heating plate 12 starts heating, the temperature measurement sensor 13 also starts to measure the temperature through the software IIC feedback, and the main controller starts to process the monitoring data, and then adjusts the drip rate and heating temperature to the recommended range based on the patient information.

[0122] S3, the main controller sends the monitoring information data of each device to the display screen 2 through the serial port for unified display, showing the infusion progress, expected infusion completion time, drug information, patient information, etc., which is convenient for patients and medical staff to view.

[0123] S4, the patient and his family can obtain the mobile terminal software mini program on the display screen 2 or by scanning the mini program 7 - such as Figure 8 The information is compared with the specific experience during the actual infusion process, such as Fig.11 , 12 If you feel uncomfortable due to the infusion speed or temperature, you can adjust the infusion speed and temperature through the virtual buttons on the screen or the physical buttons on the device, and you can also use the buttons on the screen to send an alarm and notify the nurse station.

[0124] S5, such as Figure 7 The PC of the nurse station collects and stores the information sent by the device, which can be sorted by the bed number of the device or the patient, the expected completion time of the infusion, etc., and the infusion status of each patient and the alarm information can be displayed. At the same time, the nurse station can also send instructions to the device at any time through the communication component according to the actual situation to control the infusion temperature, infusion speed and stop or start the device.

[0125] S6, during the operation of the device, by monitoring the sensor, determine whether an abnormal situation occurs. If so, execute step S7, if not, jump to S8.

[0126] S7, the main controller outputs the valve control signal to the motor drive unit, the motor drive unit drives the motor of the valve control module to rotate according to the valve clamping control signal, and the motor rotates to drive the clamp structure to clamp the infusion tube to prevent the patient's venous blood from flowing back into the infusion tube after the infusion is completed. The buzzer sounds, the indicator light turns on, and an alarm signal is sent to notify the medical staff at the nurse station to go to the infusion bed for inspection through WiFi communication and serial port communication.

[0127] S8, when it is detected that the weight of the infusion bag or infusion bottle on the hook-type tension sensor 15 is less than a certain threshold, its valve 17 is closed, and then the valve 17 of the infusion tube corresponding to the next infusion drug is opened to realize drug switching. This cycle is repeated until the last bottle of infusion drug is input, all valves are closed, and the infusion completion information is sent to the nurse station to notify the nurse to go to the corresponding bed to remove the infusion bottle and infusion tube light, reset each module of the device, and then turn off the power.

[0128] S9 stores the infusion data of the patients receiving treatment in a database, records the patient's preferred infusion temperature and infusion speed data during the infusion process, analyzes the patient's preferences, and provides more accurate infusion temperature and infusion speed recommendations for the patient's next treatment.

[0129] Step S6 specifically includes: the main controller starts an external interrupt, and if the sensor at the Moffitt burette does not trigger an external interrupt for a long time or the value measured by the weighing module changes slightly for a period of time, that is, when the liquid weight value measured by the weighing module changes less than a preset threshold value for a period of time, an alarm signal is issued; the preset threshold value of this embodiment can be determined according to actual conditions; the infusion tube below the Moffitt burette is blocked or the medicine liquid above is leaking; or after integral calculation, the titration amount is less than a certain threshold value than the amount of liquid input obtained by weighing, it may also be a leakage of medicine liquid; after integral calculation, the amount of liquid input obtained by weighing is close to the measured value at the beginning, then the infusion is completed; according to the monitoring situation, relevant information such as infusion blockage, medicine liquid leakage, and infusion completion are sent to the PC end respectively.

[0130] The corresponding sensor in the temperature monitoring is converted into a high-low level and the temperature data is obtained by software IIC communication (a serial communication protocol).

[0131] Software filtering is performed on liquid weight measurement to filter out sudden increases or decreases in weight values ​​and prevent data errors caused by excessive jitter.

[0132] When the device provided in this embodiment is in use, a nurse can load and confirm all the infusion drugs at one time. When the previous infusion drug is completed during the infusion process, the next infusion drug is automatically switched to realize automatic switching of drugs. After the infusion progress of the bed is completed, all valves are closed, and a prompt is sent to the PC that the infusion of the corresponding bed number is completed, reminding medical staff to help the patient remove the needle to prevent blood backflow. The visualization of adjustable drip rate, temperature, infusion drugs, infusion time and other information can effectively alleviate patients' anxiety about visiting doctors and reduce medical accidents and medical disputes caused by drug errors.

[0133] On the PC side of the nurse's station, it can act as a TCP Server, collect information from each device for visual display and storage, and send instructions to the corresponding device based on the information to achieve visual unified management. Medical staff can sort the information, such as the expected completion time of infusion and vacancies, and make efficient and reasonable arrangements or arrange infusion beds in advance, thereby achieving efficient and orderly management of the medical system.

[0134] At the same time, after collecting multiple infusion records of the same patient, the collected information can be stored in the background, and the patient information can be queried when the patient receives the next infusion. The drip rate and temperature of the infusion process can be automatically adjusted to the corresponding state based on the infusion temperature and infusion speed used in the patient's previous infusion process. More reasonable infusion temperature and drip rate recommendations can also be provided to other patients based on the data information.

[0135] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A multifunctional intelligent infusion device, characterized in that: It includes a main controller and an infusion liquid control component, a weight measurement module, a temperature control component, a communication component and a human-computer interaction module respectively connected to the main controller; The weight measuring module is used to monitor the remaining liquid weight in real time; The communication component is used to receive and send information; The temperature control component is used to measure the temperature and heat the liquid in the infusion tube; The infusion liquid control assembly is used to adjust the liquid titration speed of the burette by measuring the liquid titration number; The infusion liquid control assembly includes a drip rate measurement and valve control module, wherein the drip rate measurement is used to count the number of liquid titrations, and the valve control module is used to control the degree of valve opening and closing to squeeze the infusion tube to adjust the liquid titration speed of the burette; The human-computer interaction module is used to receive and display information transmitted from the main controller.

2. The multifunctional intelligent infusion device according to claim 1, characterized in that: The valve control module includes a reduction motor with an encoder and a valve structure, and the valve control module is driven by a motor drive module; under the control of the main controller, the motor drive module adjusts the valve structure through the reduction motor with an encoder, and controls the opening and closing degree of the infusion tube through the change of the valve structure.

3. The multifunctional intelligent infusion device according to claim 1, characterized in that: The valve structure includes a wire winding reel and a clamp; The wire winding drum is arranged on the rotating shaft of the reduction motor, and the wire winding drum is connected to the clamp through a rope. When the reduction motor rotates to drive the winding drum to rotate, the rope drives the opening and closing of the clamp by contraction or extension; the flow rate of the liquid is controlled by squeezing the infusion hose to different degrees by the clamp.

4. The multifunctional intelligent infusion device according to claim 1, characterized in that: The weight measuring module includes a hook-type tension sensor and an analog-to-digital conversion module; the hook-type tension sensor obtains the weight of the infusion device, and sends the weight data to the main controller after passing through the analog-to-digital conversion module.

5. The multifunctional intelligent infusion device according to claim 1, characterized in that: The temperature control component includes a heating module and a temperature monitoring module; the heating modules are arranged on both sides of the infusion tube to heat the liquid in the infusion tube; the temperature monitoring module is arranged at the outlet of the infusion tube to measure the temperature of the liquid entering the human body after heating.

6. The multifunctional intelligent infusion device according to claim 1, characterized in that: It also includes a barcode scanning module, which is used to determine current infusion information by scanning the barcode on the infusion device; and send the infusion information to the main controller; the infusion information includes infusion drug information.

7. The multifunctional intelligent infusion device according to claim 1, characterized in that: The liquid titration number is measured by a dripping rate measurement module.

8. The multifunctional intelligent infusion device according to claim 1, characterized in that: The main controller is provided with an information checking unit, a titration amount calculating unit, a titration speed calculating unit, a current infusion progress calculating unit, and a remaining infusion time calculating unit; The information checking unit is used to check the infusion information with the preset infusion information and generate and output the checking result information; Each calculation unit performs calculation according to the following formula: V d =N*V s , V d represents the titration amount, N represents the titration number, V s Indicates the volume of a drop of liquid; The titration rate, R d Indicates the titration rate, T d Indicates titration time; P represents the current infusion progress, V t Total volume of infused fluid; Estimate the remaining infusion time, T r Indicates the remaining infusion time.

9. An infusion method using the multifunctional intelligent infusion device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Confirm the infusion drug information and compare it with the patient's information. If it does not meet the requirements, an alarm will be sounded; if it meets the requirements, the device will be started to start infusing according to the preset mode; Obtain the liquid temperature and determine whether heating is required. If not, the device prohibits the use of the heating module; if yes, the heating temperature control component is started to perform heating control; and the liquid temperature information is sent to the main control module; Get the weight information of the liquid and determine whether the valve needs to be closed. If yes, close the valve; if no, return to continue to get the weight information of the liquid; and send the liquid temperature information to the main control module.

10. The multifunctional intelligent infusion method according to claim 9, characterized in that: The following steps are also included: When the liquid weight value measured by the weighing module changes less than a preset threshold over a period of time, an alarm signal is issued.

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