Multi-channel intelligent infusion control system and method

Abstract

The invention relates to the technical field of infusion control systems, and provides a multi-channel intelligent infusion control system and method.In the multi-channel intelligent infusion control system, a central control unit cooperates with a liquid level detection module, an electric control switch valve and a dripping speed control module on each infusion channel; the technical problems that an existing infusion device cannot automatically recognize multiple bottles of liquid medicine, cannot conduct seamless switching in sequence and depends on manual intervention are effectively solved. The system can automatically identify the number and the positions of connected infusion bottles based on liquid level feedback, intelligently open a current channel and close other channels according to a preset sequence, cut off the current channel in time before liquid medicine is completely infused so as to prevent air from entering, and synchronously switch to a next infusion channel, so that unattended multi-bottle continuous infusion in the whole process is realized; the risk of air embolism is thoroughly avoided, the workload of frequent inspection and manual bottle replacement of nurses is remarkably relieved, and infusion safety, continuity and patient experience are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of infusion control systems, in particular to a multi-channel intelligent infusion control system and method. BACKGROUND

[0002] In modern clinical medical practice, intravenous infusion is a very common and important treatment method, which is widely used in drug administration, nutritional support and fluid replacement. The traditional infusion method usually adopts a single bottle and single channel mode, which is manually adjusted by nurses. Although some infusion devices with automatic alarm or drop speed control function have appeared in the market, the core operation logic has not deviated from the manual intervention mode of "one bottle and one change", which cannot fundamentally alleviate the work burden of nursing staff.

[0003] However, with the increase in the number of patients and the shortage of nursing staff, sequential infusion of multiple bottles (such as continuous infusion of 3 to 5 bottles of different drugs in one day) has become the norm. In this case, even if the existing automatic alarm device is used, nurses still need to frequently go back and forth to the ward, replace, exhaust and adjust the speed of each bottle, which not only consumes a lot of physical strength and time, but also easily causes air to enter the blood vessels or drug waste due to delayed response. More importantly, the existing technology lacks unified intelligent management capability for multiple bottle infusion - it cannot automatically identify the number of connected bottles, cannot set the infusion order as needed, and cannot seamlessly switch to the next bottle when one bottle is empty, resulting in low automation, limited improvement of nursing efficiency. In addition, the traditional infusion system also has obvious shortcomings in patient experience: family members need to accompany and watch for a long time to prevent emptying, patients are anxious and worried about finishing the infusion, and night infusion is more likely to cause safety risks.

[0004] The purpose of the present application is to solve the problem that the existing infusion device cannot realize automatic identification, sequence switching and full-process non-intervention of multiple bottles, resulting in heavy nursing workload, poor patient experience and insufficient infusion safety. SUMMARY

[0005] The purpose of the present application is to solve the problem that the existing infusion device cannot realize automatic identification, sequence switching and full-process non-intervention of multiple bottles, resulting in heavy nursing workload, poor patient experience and insufficient infusion safety. The present application adopts the following technical solutions: A multi-channel intelligent infusion control system, comprising: At least one infusion channel, each of the infusion channels is used to connect one infusion bottle and is provided with a liquid level detection module and an electrically controlled on-off valve; A main infusion pipeline in communication with the output ends of all the infusion channels for delivering the drug solution to the patient; A drop speed control module provided on each of the infusion channels for independently adjusting the infusion drop speed of each of the infusion channels; A central control unit is communicatively connected to the liquid level detection module, the electrically controlled on-off valve and the drip rate control module; The central control unit is configured to: Based on the feedback signals of the liquid level detection modules, automatically identify the number and positions of the infusion channels that have accessed the infusion bottles; According to a preset or user-set infusion sequence, control the opening of the electrically controlled on-off valve of the current infusion channel and the closing of the remaining infusion channels; Before the drug solution in the current infusion channel is completely infused, close the electrically controlled on-off valve of the current infusion channel to block the entry of air, and simultaneously open the electrically controlled on-off valve of the next infusion channel, thereby achieving automatic and seamless switching of multiple drug solution bottles. After all the infusions are completed, output an end prompt signal.

[0006] The multi-channel intelligent infusion control system as described above further comprises a remote monitoring terminal, which is arranged at a nurse station and is communicatively connected to the central control unit, and is used to display the current infusion channel number, the number of bottles that have been infused, the number of bottles that remain to be infused, the drip rate of each channel and the system running state of each bed infusion device in real time.

[0007] The multi-channel intelligent infusion control system as described above further comprises a remote monitoring terminal, which is arranged at a nurse station and is communicatively connected to the central control unit, and is used to display the current infusion channel number, the number of bottles that have been infused, the number of bottles that remain to be infused, the drip rate of each channel and the system running state of each bed infusion device in real time.

[0008] The multi-channel intelligent infusion control system as described above further comprises a remote monitoring terminal, which is arranged at a nurse station and is communicatively connected to the central control unit, and is used to display the current infusion channel number, the number of bottles that have been infused, the number of bottles that remain to be infused, the drip rate of each channel and the system running state of each bed infusion device in real time.

[0009] The multi-channel intelligent infusion control system as described above further comprises a constant temperature control module, which is arranged on the main infusion pipeline or each infusion channel and is communicatively connected to the central control unit, and is used to maintain the drug solution flowing therethrough within a preset temperature range, thereby achieving constant temperature infusion.

[0010] The multi-channel intelligent infusion control system as described above further comprises a remote monitoring terminal, which is arranged at a nurse station and is communicatively connected to the central control unit, and is used to display the current infusion channel number, the number of bottles that have been infused, the number of bottles that remain to be infused, the drip rate of each channel and the system running state of each bed infusion device in real time.

[0011] The multi-channel intelligent infusion control system as described above, the central control unit is further configured to: based on the real-time data of each liquid level detection module, calculate the drug consumption rate of the current infusion channel; when detecting that the drug is abnormally rapidly depleted or the liquid level is suddenly changed within a preset time threshold, determine that it is an infusion abnormal event, immediately close the corresponding electrically controlled on-off valve, and generate alarm information containing the abnormal type and channel position, and output through the remote monitoring terminal.

[0012] The multi-channel intelligent infusion control method as described above, comprising the following steps: Step one: when the drug in the current infusion channel is depleted, obtain the preset drug amount, the infusion start time and the current system time corresponding to the channel; Step two: based on the preset drug amount and the actual consumption data, combined with the infusion duration, determine whether the depletion event is a planned normal completion; Step three: if it is determined to be a normal completion, close the electrically controlled on-off valve of the current infusion channel, and simultaneously open the electrically controlled on-off valve of the infusion channel corresponding to the next infusion sequence, to realize automatic seamless switching; Step four: if it is determined to be an abnormal completion, keep the electrically controlled on-off valves of all infusion channels in the closed state, prohibit switching to the next bottle, and generate an abnormal alarm signal for output through the remote monitoring terminal.

[0013] The multi-channel intelligent infusion control method as described above, in the step two, the actual consumption data is the actual amount of drug infused calculated based on the liquid level change amount collected by the liquid level detection module during the infusion from the start to the depletion; determining whether the depletion event is a planned normal completion comprises: if the difference between the actual amount of drug infused and the preset drug amount is less than or equal to a preset tolerance threshold, it is determined to be a normal completion; otherwise, it is determined to be an abnormal completion.

[0014] The multi-channel intelligent infusion control method as described above, in the step two, the combination of the infusion duration to determine whether the depletion event is a planned normal completion comprises: calculating the theoretical infusion duration according to the preset drug amount and the set drop rate of the current infusion channel; if the deviation between the actual infusion duration and the theoretical infusion duration is within a preset time tolerance range, it is considered to be normal in the time dimension; only when both the drug amount dimension and the time dimension are normal, it is determined to be a planned normal completion.

[0015] The embodiment of the present application has the following beneficial effects: In the present application, through the cooperative matching of the central control unit and the liquid level detection module, the electrically controlled on-off valve and the drip speed control module on each infusion channel, the technical problems that the existing infusion equipment cannot automatically identify multiple bottles of liquid medicine, cannot seamlessly switch in sequence and relies on manual intervention are effectively solved; the system can automatically identify the number and position of the infusion bottles connected based on the liquid level feedback, intelligently opens the current channel and closes the remaining channels in the preset order, timely cuts off the current channel to block the entry of air before the liquid is infused, and synchronously switches to the next infusion channel, realizing the whole-process unattended continuous infusion of multiple bottles; not only the risk of air embolism is completely avoided, but also the work burden of the nurses for frequent inspection and manual bottle changing is significantly reduced, and the infusion safety, continuity and patient experience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of a multi-channel intelligent infusion control system of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] As shown in Figure 1 , the present embodiment provides a multi-channel intelligent infusion control system, which includes at least one infusion channel (channels 1-N), each channel being used to connect a standard infusion bottle. Each infusion channel is sequentially provided with: a liquid level detection module, which in the present embodiment adopts a high-precision weighing sensor to monitor the weight change of the infusion bottle in real time; an electrically controlled on-off valve, which is a normally closed electromagnetic valve controlled by the central control unit; a drip speed control module, which is a step motor driven roller type speed regulator, and can independently set the drip speed of each channel; a manual emergency on-off valve, which is a mechanical roller clamp, and is connected in parallel with the electrically controlled on-off valve, and can manually open or close the liquid passage when power off; The output end of each infusion channel is connected to the main infusion pipeline through a one-way valve, the one-way valve adopts a medical silica gel duckbill valve structure, only allows the liquid medicine to flow from the infusion bottle to the main pipeline, and prevents backflow cross contamination. The end of the main infusion pipeline is connected to a patient indwelling needle.

[0020] The system further comprises: A remote monitoring terminal, which is a touch screen computer or a special monitoring all-in-one machine installed in a nurse workstation, and runs a centralized monitoring software. It can establish a communication connection with the central control unit of each bed through the hospital intranet, and can monitor the state of all infusion equipment in the whole ward at the same time; A constant temperature control module, which is a flexible heating belt wrapped around the main infusion pipeline, and the controllable temperature range is 32-40℃; The central control unit adopts a microcontroller, and is internally provided with a real-time clock, a non-volatile memory and a Wi-Fi communication module.

[0021] The working process of the system is as follows: 1. Automatic identification and initialization After the medical staff hang a plurality of infusion bottles to the corresponding channels, the central control unit reads the initial weight through the liquid level detection module, automatically identifies the number of channels that have been accessed (such as 3 bottles accessed channels 1, 2 and 4), and displays on the remote monitoring terminal: “3 bottles have been identified, waiting for sequence setting”.

[0022] 2. Infusion plan setting The infusion sequence and the preset amount of each bottle can be input through the remote monitoring terminal screen, and the time period plan can be set. The plan data is stored in the non-volatile memory.

[0023] 3. Automatic infusion and switching The system opens the electrically controlled on-off valve of the channel according to the plan at the set time, and the remaining channels remain closed; The drip speed control module adjusts the drip speed according to the set value; The constant temperature control module maintains the liquid medicine at the set temperature; When the liquid medicine in channel 2 is about to be exhausted (5mL remaining), the system closes the electrically controlled on-off valve in advance to block it, and simultaneously opens the electrically controlled on-off valve of channel 1, realizing seamless switching.

[0024] 4. Normal or abnormal completion judgment When the liquid medicine in any infusion channel is exhausted, the central control unit executes the following judgment process: Firstly, the preset amount of the liquid medicine, the infusion start time and the current system time corresponding to the infusion channel are obtained; Secondly, based on the liquid level change data collected by the liquid level detection module during the infusion from the beginning to the end, the actual amount of the infused liquid medicine is calculated, and is compared with the preset amount; if the deviation between them does not exceed the preset amount tolerance threshold, it is determined that the amount dimension is normal; Meanwhile, according to the set drop rate and the preset drug amount of the channel, the theoretical infusion time is calculated and compared with the actual infusion duration; if the time deviation is within the preset time tolerance range, it is determined that the time dimension is normal; Only when both the drug amount dimension and the time dimension meet the normal conditions, the central control unit determines that the infusion event is a planned normal completion; If any dimension exceeds the tolerance range, it is determined to be an abnormal completion; For the normal completion case, the system closes the electrically controlled on-off valve of the current infusion channel and simultaneously opens the electrically controlled on-off valve of the next infusion sequence corresponding to the infusion channel, realizing automatic and seamless switching; For the abnormal completion case, the system keeps all the electrically controlled on-off valves of the infusion channels in the closed state, prohibits switching to the next bottle, and outputs alarm information containing the type of abnormality and the channel position through the bed-side audible and visual alarm and the nurse station remote monitoring terminal.

[0025] Embodiment Two: This embodiment adopts different but equivalent technical means in the liquid level detection method, communication architecture and human-computer interaction form.

[0026] Specifically, the liquid level detection module arranged on each infusion channel adopts an optical liquid level sensor, which is installed at the transparent window at the bottom of the infusion bottle. The remaining amount of the drug solution is determined by detecting the change in light transmission intensity, and the amount of the drug solution already infused is calculated accordingly.

[0027] The central control unit adopts a low-power Bluetooth microcontroller with a built-in Bluetooth 5.0 communication module, which no longer relies on the hospital Wi-Fi network. Each bed-side device sends the running state data to the nurse's handheld terminal (such as a tablet computer or a special PDA) through Bluetooth, and the centralized monitoring APP installed on the terminal realizes real-time viewing and alarm receiving of the infusion state of the entire ward.

[0028] The constant temperature control module is integrated into the infusion channel pipe clamping seat, adopts PTC ceramic heating sheet and temperature feedback closed loop control, and only locally heats the channel that is currently being infused.

[0029] In terms of workflow, this embodiment still performs the same control logic as Embodiment One: Automatic recognition of the number of access channels; Support for infusion sequence and time period planning setting; Prevent air switching before the drug solution is exhausted; Judge normal / abnormal completion based on drug amount deviation and time deviation; Prohibit switching and trigger alarm in case of abnormality; Alarm information is pushed to the nurse's handheld terminal.

[0030] Example 3: This embodiment features enhanced designs in drug identification, double verification, and anomaly handling.

[0031] Central control unit: Added drug identification module and access control system.

[0032] The difference in system workflow lies in 1. Automatic identification and initialization After medical staff attach several infusion bottles to the corresponding channels, the central control unit reads the initial weight through each liquid level detection module, automatically identifies the number of channels that have been connected, and displays on the local display: "4 bottles identified, information to be verified".

[0033] 2. Drug information verification and infusion plan setting Each infusion bottle is affixed with an RFID tag or QR code containing drug information, which is automatically read and uploaded to the central control unit by the drug identification module. The central control unit compares the information it reads with the prescription data in the electronic medical order system. If any discrepancies are found (such as incorrect drug name, excessive dosage, incompatibilities, etc.), it will immediately issue a warning and stop the infusion. After verification, medical staff input the infusion sequence and preset dosage of each via touchscreen, and can also set time-segmented plans. The plan data is stored in non-volatile memory.

[0034] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A multi-channel intelligent infusion control system, characterized in that, include: At least one infusion channel, each of which is used to connect to an infusion bottle and is equipped with a liquid level detection module and an electrically controlled switch valve; The main infusion line is connected to the output end of all the infusion channels and is used to deliver the medication to the patient. A drip rate control module is installed on each of the infusion channels to independently adjust the drip rate of each infusion channel; The central control unit is communicatively connected to the liquid level detection module, the electrically controlled switching valve, and the drip rate control module. The central control unit is configured as follows: Based on the feedback signals from each of the liquid level detection modules, the number and location of the infusion channels that have been connected to the infusion bottle are automatically identified; According to the preset or user-defined infusion sequence, the electronically controlled switch valve of the current infusion channel is opened, and the other infusion channels are closed; Before the medication in the current infusion channel is completely infused, the electrically controlled switch valve of the current infusion channel is closed to prevent air from entering, and the electrically controlled switch valve of the next infusion channel is opened simultaneously to achieve automatic and seamless switching between multiple bottles of medication. After all infusions are completed, an end prompt signal will be output.

2. The multi-channel intelligent infusion control system according to claim 1, characterized in that, It also includes a remote monitoring terminal, which is set up at the nurse station and communicates with the central control unit to display in real time the current infusion channel number, the number of infusion bottles already infused, the number of remaining bottles to be infused, the drip rate of each channel, and the system operating status of each infusion device.

3. The multi-channel intelligent infusion control system according to claim 1, characterized in that, Each of the infusion channels is also equipped with a manual emergency switch valve, which is connected in parallel with the electrically controlled switch valve and is used to allow medical staff to manually control the opening and closing of the corresponding infusion channel in the event of a power outage or system failure.

4. The multi-channel intelligent infusion control system according to claim 1, characterized in that, Each of the infusion channels is equipped with a one-way valve at its output end. The one-way valve is configured to allow the medication to flow unidirectionally from the infusion bottle to the main infusion line only, so as to prevent the medication from flowing back into other infusion channels or closed infusion bottles.

5. A multi-channel intelligent infusion control system according to claim 1, characterized in that, It also includes a constant temperature control module, which is installed on the main infusion pipeline or each of the infusion channels and is connected to the central control unit to maintain the flowing liquid medicine within a preset temperature range to achieve constant temperature infusion.

6. The multi-channel intelligent infusion control system and method according to claim 1, characterized in that, The central control unit is also configured to: receive and store an infusion plan containing the infusion start time of each infusion bottle; and, based on the current system time, automatically open the infusion channel corresponding to any infusion bottle and close other channels when the infusion start time of any infusion bottle is reached, thereby realizing time-segmented infusion control according to the time plan.

7. The multi-channel intelligent infusion control system and method according to claim 1, characterized in that, The central control unit is also configured to: calculate the drug consumption rate of the current infusion channel based on the real-time data of each of the liquid level detection modules; when the drug is detected to be abnormally and rapidly depleted or the liquid level changes suddenly within a preset time threshold, it is determined to be an infusion abnormal event, the corresponding electronically controlled switch valve is immediately closed, and an alarm message containing the abnormality type and channel location is generated and output through the remote monitoring terminal.

8. The multi-channel intelligent infusion control method according to claim 1, characterized in that, Includes the following steps: Step 1: When the medication in the current infusion channel is exhausted, obtain the preset medication volume, infusion start time, and current system time for that channel; Step 2: Based on the preset drug dosage and actual consumption data, combined with the infusion duration, determine whether the infusion exhaustion event is a planned normal completion; Step 3: If it is determined to be a normal completion, close the electronically controlled valve of the current infusion channel and simultaneously open the electronically controlled valve of the infusion channel corresponding to the next infusion sequence to achieve automatic seamless switching; Step 4: If it is determined to be an abnormal completion, keep the electronically controlled valves of all infusion channels in the closed state, prohibit switching to the next bottle, and generate an abnormal alarm signal to be output through the remote monitoring terminal.

9. The multi-channel intelligent infusion control method according to claim 1, characterized in that, In step two, the actual consumption data is the actual amount of medicine already infused, calculated based on the liquid level change collected by the liquid level detection module from the start of infusion to the end of infusion. Determining whether the complete infusion event is a planned normal completion includes: if the difference between the actual infused amount and the preset amount is less than or equal to a preset tolerance threshold, it is determined to be a normal completion; Otherwise, it will be judged as an abnormal completion.

10. The multi-channel intelligent infusion control method according to claim 1, characterized in that, In step two, determining whether the infusion completion event is a planned normal completion based on the infusion duration includes: calculating the theoretical infusion duration based on the preset drug dosage and the set drip rate of the current infusion channel; if the deviation between the actual infusion duration and the theoretical infusion duration is within the preset time tolerance range, it is considered normal in the time dimension; only when both the drug dosage dimension and the time dimension are normal is it determined to be a planned normal completion.

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