CN115356957A - Infusion mode control system and method for infusion pump - Google Patents

Infusion mode control system and method for infusion pump Download PDF

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Publication number
CN115356957A
CN115356957A CN202210921202.4A CN202210921202A CN115356957A CN 115356957 A CN115356957 A CN 115356957A CN 202210921202 A CN202210921202 A CN 202210921202A CN 115356957 A CN115356957 A CN 115356957A
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China
Prior art keywords
infusion
switching
mode
transfusion
infusion device
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赵天锋
夏朝阳
赖刚
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Sino Medical Device Technology Co ltd
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Sino Medical Device Technology Co ltd
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Priority to CN202210921202.4A priority Critical patent/CN115356957A/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1407—Infusion of two or more substances
    • A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/16854—Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
    • A61M5/16859—Evaluation of pressure response, e.g. to an applied pulse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M2005/14208—Pressure infusion, e.g. using pumps with a programmable infusion control system, characterised by the infusion program
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25257—Microcontroller

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention provides a transfusion mode control system and a method for a transfusion pump, wherein the system comprises a main control unit, a peristaltic pump assembly, a motor unit, a coding monitoring module and a pressure detection module, the motor unit is connected with the peristaltic pump assembly and used for rotationally driving the peristaltic pump assembly, a transfusion tube is squeezed by the peristaltic pump assembly to perform transfusion, the coding monitoring module is connected with the motor unit and used for detecting the number of turns of rotation data of the motor unit, the pressure detection module is connected with the main control unit and used for feeding back a liquid pressure value in a transfusion pipeline in real time, and the main control unit is connected with the coding monitoring module and used for acquiring the number of turns of rotation data and determining whether to switch a transfusion mode or not by combining the received liquid pressure value. The invention can solve the problems of inaccurate medicine taking, large medicine taking risk, low infection risk and the like in the prior art, can realize the switching of the transfusion modes according to the preset conditions, and can ensure the safety and the reliability of transfusion while realizing the carrying of transfusion control.

Description

Infusion mode control system and method for infusion pump
Technical Field
The invention relates to the technical field of medical instruments, in particular to an infusion mode control system for an infusion pump and a control method applying the system.
Background
The infusion pump is widely applied to clinical rehabilitation and treatment, belongs to infusion devices in operating rooms, emergency rooms, diagnosis and treatment rooms and the like, has higher requirements on the stability of infusion speed, the infusion dosage, the infusion time and the like, and ensures that the flow rate, the dosage and the flow of liquid medicine infused into the body of a patient reach expectations and the safety and the effectiveness of clinical use.
The infusion is carried out in an infusion mode required in clinical infusion, namely, the first liquid medicine is conveyed, and then the second liquid medicine is conveyed, or the main medicine and the auxiliary medicine are infused. During the transfusion, the speed, the preset quantity, the time and other parameters of the first transfusion and the second transfusion can be adjusted and controlled. The purpose of carrying the infusion lies in accurate medicine use, reduces the risk of using medicine, reducible pipeline and patient's the number of times of being connected, reduces the infection risk.
At present, no infusion device or method for effectively realizing infusion loading is found in the market, and a new technical means or method is needed to realize infusion loading control and ensure the safety and reliability of infusion.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a transfusion mode control system and a method thereof for an infusion pump, which relate to the transfusion mode switching control of a transfusion system, mainly solve the problems of inaccurate medication, high medication risk, high infection risk reduction and the like in the prior art, realize the switching of transfusion modes according to preset conditions, realize the on-board transfusion control and ensure the safety and reliability of transfusion.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an infusion mode control system for an infusion pump, comprising: the device comprises a main control unit, a peristaltic pump assembly, a motor unit, a coding monitoring module and a pressure detection module, wherein the motor unit is connected with the peristaltic pump assembly and used for rotationally driving the peristaltic pump assembly to extrude an infusion tube to infuse, the coding monitoring module is connected with the motor unit and used for detecting the number of turns of rotation data of the motor unit, the pressure detection module is connected with the main control unit and used for feeding back a liquid pressure value in an infusion pipeline in real time, the main control unit is connected with the coding monitoring module and used for acquiring the number of turns of rotation data and determining whether to switch an infusion mode or not by combining the received liquid pressure value, and the infusion pipeline is of a double-channel switching structure;
the system further comprises a cloud service processing module and a remote monitoring processing module, the main control unit is communicated with the cloud service processing module through a communication module, and the cloud service processing module is used for realizing data interconnection and sharing between the main control unit and the remote Cheng Jianhu processing module.
In a further aspect, the system further comprises a bubble detection sensor module configured to detect a bubble size or an accumulated bubble volume in the liquid in the infusion line and send a bubble sensing signal to the master control unit.
The scheme that is further more is, the motor unit includes motor and motor drive module install the output department of motor the code monitoring module, the code monitoring module is used for detecting the electric motor rotor measured data of motor, and feed back to the main control unit, the main control unit is through control after receiving control signal the motor drive module realizes right the control of motor.
According to a further scheme, the peristaltic pump assembly is connected with a first infusion device and a second infusion device through an infusion pipeline, the first infusion device and the second infusion device are not on the same horizontal plane, are arranged in a layered mode, have a height difference, and are switched between a conducting state and a liquid stopping state through a double-channel switching structure of the infusion pipeline.
A control method of an infusion mode control system for an infusion pump, which applies the above-mentioned infusion mode control system for an infusion pump to perform switching control of infusion modes, the method comprising the steps of: setting an infusion switching mode configured to respond to receiving an infusion switching signal from the main control unit;
carrying out infusion on the first infusion device according to a preset first-stage infusion mode; in the infusion process, the first infusion device conducts infusion at a first rate and judges whether the current infusion device meets infusion switching conditions or not;
if the transfusion switching condition is met, entering a transfusion switching mode to enable the first transfusion device to be switched from a conduction state to a liquid stopping state, switching the second transfusion device from the liquid stopping state to the conduction state, performing transfusion on the second transfusion device according to a preset second-stage transfusion mode, and performing transfusion by the second transfusion device at a second speed;
and judging whether the current infusion device meets an infusion completion condition in real time, if so, completing the current infusion task and outputting an infusion alarm prompt, wherein the infusion switching condition comprises pressure carrying mode switching, time carrying mode switching, preset volume carrying mode switching or user-defined carrying mode switching.
The method comprises the steps that when the infusion function is started, a motor rotates to drive a belt pulley to rotate, a peristaltic pump assembly is further driven to rotate, the liquid pressure value in an infusion pipeline where a first infusion device is located is detected in real time within the preset cycle number of the peristaltic pump assembly, the variation quantity of a first pressure signal of the infusion pipeline where the first infusion device is located is judged through a pressure detection module, and when the variation quantity of the first pressure signal is larger than a first preset pressure threshold value, it can be determined that the current infusion device meets infusion switching conditions.
According to a further scheme, when infusion is stable, the pressure detection module detects that the pressure in the infusion pipeline is stable, when the infusion amount is reduced in the vertical height direction of an infusion tube of the first infusion device, the peristaltic pump assembly rotates for a preset number of cycles, so that the liquid level of the infusion tube of the first infusion device is lowered, according to the gravity principle, a mathematical model between the pressure in the infusion pipeline of the infusion device and the liquid level lowering height in the infusion process is obtained, and whether the current pressure signal variation meets the infusion switching condition or not is judged.
In the process of infusion of the first infusion device, after infusion for the first preset infusion time is finished, an infusion switching mode can be entered, and the infusion is switched to the second infusion device for infusion;
in the process of infusion of the first infusion device, after the preset amount of the first infusion pump is finished, the infusion switching mode can be entered, and the second infusion device is switched to carry out infusion;
in the process of infusion of the first infusion device, the speed, the time and the preset amount of infusion are determined according to user-defined settings to form a user-defined condition, and after the user-defined condition is completed, an infusion switching mode can be entered and the second infusion device is switched to carry out infusion.
Further, the transfusion completion conditions include: in the infusion process of the second infusion device, the liquid pressure value in the infusion pipeline where the second infusion device is located is detected in real time, the second pressure signal variation of the infusion pipeline where the second infusion device is located is judged through the pressure detection module, and when the second pressure signal variation is larger than a second preset pressure threshold value, the condition that the current infusion device meets the infusion completion condition can be determined.
Further, the transfusion completion condition includes: in the process of infusion of the second infusion device, after infusion for the second preset infusion time is finished, determining that the current infusion device meets the condition of infusion completion, and outputting an infusion alarm prompt;
the transfusion completion condition includes: in the infusion process of the second infusion device, after the preset amount of the second infusion pump is finished, the current infusion device can be determined to meet the infusion finishing condition, and an infusion alarm prompt is output;
the transfusion completion condition includes: in the process of infusion of the second infusion device, the speed, the time and the preset amount of infusion are determined according to user-defined settings to form a user-defined infusion completion condition, and after the condition is completed, the condition that the current infusion device meets the infusion completion condition can be determined, and an infusion alarm prompt is output.
Therefore, compared with the prior art, the invention has the following beneficial effects:
(1) The system and the method for carrying the infusion can realize effective control on the infusion, improve the accuracy of medication and reduce the risk of medication;
(2) The invention can adopt the pressure sensor to realize the control of the infusion carrying, particularly adopts the pressure change to realize the switching of the first infusion device and the second infusion device, and can effectively realize the switching;
(3) The specific method of the invention relates to the number of rotation turns of the motor, can further drive the number of rotation turns of the peristaltic pump, and the specific number of turns is corresponding to the change of the pressure value, thereby judging whether the switching of the infusion carrying is carried out or not, and the method is easy to realize and has low cost;
(4) The invention can adopt the preset time interval to realize the control of infusion carrying, and concretely adopts the timing of the preset time to realize the parameter switching of the first infusion device and the second infusion device, and the method is simple and convenient to realize;
(5) The invention can adopt the preset infusion amount to realize the control of infusion carrying, and particularly adopts the preset amount to realize the parameter switching of the first infusion device and the second infusion device, and the method is reliable to realize;
(6) The invention realizes the control of infusion carrying by mixing the preset infusion time and the preset amount, and particularly realizes the parameter switching of the first infusion device and the second infusion device by adopting the preset time and the preset amount according to the user definition;
(7) The invention adopts a manual and automatic mode to realize the switching of the infusion modes and realize accurate and safe medication; the switching of infusion carrying can be effectively realized;
(8) A system solution adopting switching similar to infusion carrying does not exist in the market, and market expansion is facilitated.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of an embodiment of an infusion mode control system for an infusion pump according to the present invention.
Fig. 2 is a schematic structural diagram of a fluid administration mode control system for an infusion pump according to an embodiment of the present invention, with a front casing platen assembly disassembled.
FIG. 3 is a schematic diagram of the configuration of the peristaltic pump assembly, the motor unit, the infusion tubing, the first infusion device and the second infusion device in an embodiment of an infusion mode control system for an infusion pump according to the present invention.
Fig. 4 is a schematic diagram of an embodiment of an infusion mode control system for an infusion pump according to the present invention.
Fig. 5 is a circuit schematic of a pressure detection module in an embodiment of an infusion mode control system for an infusion pump according to the present invention.
Fig. 6 is a flow chart of an embodiment of a method of controlling an infusion mode control system for an infusion pump in accordance with the present invention.
Fig. 7 is a control flowchart regarding a pressure infusion loading mode in an embodiment of a control method of an infusion mode control system for an infusion pump according to the present invention.
Fig. 8 is a control flowchart regarding the entire infusion-carrying mode in an embodiment of a control method of an infusion mode control system for an infusion pump of the present invention.
Fig. 9 is a graph showing a pressure-loading mode in an embodiment of a control method of an infusion mode control system for an infusion pump according to the present invention.
Fig. 10 is a graph showing a time-loading pattern in an embodiment of a control method of an infusion mode control system for an infusion pump according to the present invention.
Fig. 11 is a graph showing a preset quantity loading mode in an embodiment of a control method of a fluid delivery mode control system for an infusion pump according to the present invention.
Fig. 12 is a graph showing a hybrid mounting mode in an embodiment of a control method of an infusion mode control system for an infusion pump according to the present invention.
Fig. 13 is a schematic diagram of an embodiment of a control method for an infusion mode control system for an infusion pump according to the present invention with respect to manual mode switching control.
Detailed Description
An infusion mode control system embodiment for an infusion pump:
referring to fig. 1 to 4, an infusion mode control system for an infusion pump according to the present invention includes: .
The device comprises a main control unit 10, a peristaltic pump assembly 20, a motor unit 30, a coding monitoring module 40 and a pressure detection module 50, wherein the motor unit 30 is connected with the peristaltic pump assembly 20 and used for rotationally driving the peristaltic pump assembly 20, an infusion pipeline 102 is squeezed by the peristaltic pump assembly 20 to carry out infusion, the coding monitoring module 40 is connected with the motor unit 30 and used for detecting the number of turns of rotation of the motor unit 30, the pressure detection module 50 is connected with the main control unit 10 and used for feeding back a liquid pressure value in the infusion pipeline 102 in real time, the main control unit 10 is connected with the coding monitoring module 40 and used for acquiring the number of turns of rotation and determining whether to switch an infusion mode or not by combining the received liquid pressure value, wherein the infusion pipeline 102 is of a double-channel switching structure, the coding monitoring module 40 is a coding disc, and the pressure detection module 50 comprises an upper pressure sensor 51 and a lower pressure sensor 52.
In this embodiment, the system further includes a cloud service processing module 11 and a remote monitoring processing module 12, the main control unit 10 communicates with the cloud service processing module 11 through a communication module 13, and the cloud service processing module 11 is configured to implement data interconnection and sharing between the main control unit 10 and the remote Cheng Jianhu processing module 12.
In this embodiment, the system further includes a bubble detection sensor module 60 configured to detect a bubble size or cumulative bubble volume in the liquid within the infusion tubing 102 and send a bubble sensing signal to the master control unit 10.
In this embodiment, the motor unit 30 includes a motor 31 and a motor driving module 32, a coding monitoring module 40 is installed at an output end of the motor 31, the coding monitoring module 40 is used for detecting rotor measurement data of the motor 31 and feeding back the rotor measurement data to the main control unit 10, and the main control unit 10 controls the motor 31 by controlling the motor driving module 32 after receiving a control signal.
In the embodiment, the peristaltic pump assembly 20 is connected to the first infusion device 100 and the second infusion device 200 through the infusion tube 102, the first infusion device 100 and the second infusion device 200 are not on the same horizontal plane, and are arranged in layers and have a height difference, and the first infusion device 100 and the second infusion device 200 are switched between the conduction state and the liquid stop state through the dual-channel switching structure of the infusion tube 102.
The system provided by the invention comprises a motor system, a coding disc, a peristaltic pump assembly, an infusion pump pressure detection and hardware circuit signal processing part, a software infusion mode control algorithm and the like. According to the invention, the number of the rotating turns of the coding disc is detected, so that the number of the rotating turns of the peristaltic pump assembly 20 is verified, and therefore, a specific number of the rotating turns needs to be set for the peristaltic pump assembly 20 in advance to ensure that the infusion amount is constant; the pressure of the upper pressure sensor 51 is generated by the height of the liquid surface (gravity), and the height difference exists between the infusion tube 102 of the first infusion device 100 and the second infusion device 200, so that when the infusion of the first infusion device 100 (infusion bottle or infusion bag) is completed at the first speed, whether to switch to the infusion of the second infusion device 200 can be judged according to the reduction value of the pressure.
When the first infusion device 100 is in a state of being close to an empty bottle (the liquid is almost entirely in a vertical pipeline and is sensitive to the pressure generated by the upper pressure sensor 51), according to the gravity principle, the reduction of the infusion amount will result in the reduction of the pressure, the reduction of the pressure is related to the reduction of the infusion amount in the vertical direction, and whether the infusion mode of the second infusion device 200 is switched or not is judged according to the experience threshold value by detecting the variation of the pressure value.
Specifically, the system for carrying infusion of the present invention mainly comprises: the monitoring system comprises a bubble detection sensor module 60, a pressure detection module 50, a motor unit 30, a main control unit 10, a cloud service processing module 11, a remote monitoring processing module 12, a human-computer interface module 14, a communication module 13 and a storage module 15.
The bubble detection sensor module 60 comprises a bubble detection sensor 61 and a bubble detection signal processing circuit, and is used for detecting whether bubbles exist in the pipeline or not, and if bubbles or air columns exist in the pipeline, a bubble alarm is sent out to remind and infusion is stopped. Therefore, the bubble detection sensor can monitor bubbles in the pipeline in real time, when the bubble signal is greater than the preset bubble value set by the main control unit 10, the main control unit 10 controls the driving device to stop driving, and controls the alarm device to send out an alarm signal, so that the safety of the patient during infusion is ensured.
The peristaltic pump assembly 20 includes a peristaltic pump, which can rapidly infuse the liquid medicine into the patient, so that the infusion tube 102 can be filled with the liquid medicine more rapidly to meet the requirement of large-volume infusion.
The pressure detection module 50 includes an upper pressure sensor 51, a lower pressure sensor 52, a first signal processing circuit and a second signal processing circuit, and is configured to detect a pressure state of the infusion pipeline 102 and determine whether to perform infusion mode switching according to the pressure state. If the liquid pressure value is abnormal, a corresponding alarm prompt is given, such as empty bottle or blockage.
The motor unit 30 comprises a motor 31 and a motor driving module 32, the motor driving module 32 outputs a driving signal to drive the motor 31 to rotate, the code monitoring module 40 can detect the rotation code of the motor 31, and the like, so as to drive and detect the rotation of the motor 31 and detect the rotation of the peristaltic pump assembly 20.
The main control unit 10 can realize the driving and coding feedback detection of the motor 31 according to the input instruction of the upper computer, receive bubble detection signals, pressure sensor signals and the like, and make judgment processing according to the received signals, wherein the judgment processing comprises transfusion mode switching, alarm reminding and the like; the human-computer interface module 14 is used for realizing detection information display, infusion speed, infusion preset quantity, residual medicine quantity, operation of medical personnel and the like; the communication module 13 realizes the communication between the device and the monitoring center or the remote monitoring center; the cloud service processing module 11 realizes data interconnection and sharing; the remote monitoring processing module 12 facilitates remote data viewing and remote control; the storage module 15 enables storage of data, such as calibration parameters, user settings, etc.
In practical applications, the infusion mode control system for an infusion pump provided by the invention comprises a housing 101, an infusion pipeline 102, a motor 31, a front housing pressing plate assembly 1011, an upper pressure sensor 51, a bubble detection sensor 61, a peristaltic pump assembly 20, a lower pressure sensor 52, a liquid stopping clip 103, the infusion pipeline 102 and the like. Wherein, the infusion rate, the infusion preset quantity, the alarm information and the like are displayed through the front shell pressing plate component 1011; the motor 31 rotates to drive the belt pulley to rotate, so as to drive the peristaltic pump shaft to rotate, further convert the pump sheet to move back and forth and extrude the infusion pipeline 102, and realize continuous infusion. When the first infusion bottle is close to an empty bottle state, the peristaltic pump rotates for a fixed number of turns, and the pressure sensor detects that the pressure value is reduced by a corresponding numerical value, so that whether the first infusion bottle is switched to the second infusion device 200 for infusion or not is easily judged. In addition, the empty bottle blockage condition can be further judged according to the pressure change of the upper pressure sensor 51, the use reliability of the machine is improved, and the use safety of the machine is ensured.
As shown in fig. 5, the pressure detection module 50 includes pressure sensors (such as an upper pressure sensor 51 and a lower pressure sensor 52), a precision amplification circuit 53, and a filter processing circuit 54, and senses the infusion pressure through the pressure sensors, and processes the infusion pressure into an analog signal that can be received by the main control unit 10 through the precision amplification circuit 53 and the filter processing circuit 54, so that the main control unit 10 further identifies the signal and can detect the pressure value. The operating state of the infusion pump is determined based on the detection values of the upper and lower pressure sensors 52.
Specifically, the precision amplifying circuit 53 includes a first operational amplifier U61, a non-inverting input terminal of the first operational amplifier U61 is connected with a resistor R61 and a capacitor C61, an inverting input terminal of the first operational amplifier U61 is connected with a resistor R62 and a capacitor C62, a resistor R63 and an adjustable resistor R64 are connected between RG1 and RG2 of the first operational amplifier U61, and an output terminal of the first operational amplifier U61 is connected with an input terminal of the filtering processing circuit 54; the filter processing circuit 54 comprises a resistor R65, a capacitor C63, a second operational amplifier, a resistor R66 and a capacitor C64, wherein the resistor R65 is connected with the capacitor C63, the capacitor C63 is connected with the non-inverting input end of the second operational amplifier U62, the inverting input end of the second operational amplifier U62 is connected with the output end, the output end of the second operational amplifier U62 is connected with the resistor R66, and the resistor R66 is connected with the capacitor C64.
The infusion liquid of this embodiment may be a medical liquid or blood or other liquid that a doctor may use, either in a sealed flexible bag pack or in an open vial.
The human-computer interface module 14 of this embodiment includes an input device and a display device, the input device is responsible for setting specific infusion parameters, the display device is responsible for displaying parameters, working conditions, alarm information and the like, and an LED nixie tube and a liquid crystal display are mostly used. Of course, the display parameters of the present embodiment include, but are not limited to, a set temperature value, a real-time temperature value of the liquid, a heating time, a pressure value, etc., which can be displayed on a display device on the apparatus and can be conveniently obtained by a user.
Further, in order to ensure that the user can notice the alarm information in time, the transfusion apparatus of the present embodiment further includes an alarm device, which can send an alarm, including sound, image, light, or the like, or a combination thereof.
The embodiment also comprises a power supply device which provides energy for the whole system and is used for automatic switching of power supply and internal battery power supply, power distribution management, internal battery charging and discharging management and the like.
The embodiment of a control method of an infusion mode control system for an infusion pump comprises the following steps:
a control method of an infusion mode control system for an infusion pump, which applies the above-mentioned infusion mode control system for an infusion pump to perform switching control of an infusion mode, as shown in fig. 6, the method comprising the steps of:
step S1, an infusion switching mode is set, which is configured to respond to the reception of an infusion switching signal from the main control unit 10.
S2, performing infusion on the first infusion device 100 according to a preset first-stage infusion mode; during infusion, the first infusion device 100 infuses fluid at a first rate and determines whether the current infusion device satisfies an infusion switching condition.
If the transfusion switching condition is met, step S3 is executed to enter a transfusion switching mode, so that the first transfusion device 100 is switched from a conducting state to a liquid-stopping state, the second transfusion device 200 is switched from the liquid-stopping state to the conducting state, the second transfusion device 200 is transfused according to a preset second-stage transfusion mode, and the second transfusion device 200 transfuses at a second rate.
And S4, judging whether the current infusion device meets an infusion completion condition in real time, if so, completing the current infusion task, and outputting an infusion alarm prompt, wherein the infusion switching condition comprises pressure carrying mode switching, time carrying mode switching, preset volume carrying mode switching or user-defined carrying mode switching.
When the infusion function is started, the motor 31 rotates to drive the belt pulley to rotate, so as to drive the peristaltic pump assembly 20 to rotate, within a preset number of cycles of rotation of the peristaltic pump assembly 20, the liquid pressure value in the infusion pipeline 102 where the first infusion device 100 is located is detected in real time, the first pressure signal variation of the infusion pipeline 102 where the first infusion device 100 is located is determined through the pressure detection module 50, and when the first pressure signal variation is greater than a first preset pressure threshold, it is determined that the current infusion device meets the infusion switching condition.
When the infusion is stable, the pressure detection module 50 detects that the pressure in the infusion pipeline 102 is stable, when the infusion amount is reduced in the direction of the vertical height of the infusion tube of the first infusion device 100, the peristaltic pump assembly 20 rotates for a preset number of cycles, so that the liquid level of the infusion tube of the first infusion device 100 is reduced, a mathematical model between the pressure in the infusion pipeline 102 and the liquid level reduction height of the infusion device in the infusion process is obtained according to the gravity principle, and whether the current pressure signal variation meets the infusion switching condition is judged.
In the present embodiment, the infusion completion conditions include: in the infusion process of the second infusion device 200, the liquid pressure value in the infusion pipeline 102 where the second infusion device 200 is located is detected in real time, the pressure detection module 50 determines the second pressure signal variation of the infusion pipeline 102 where the second infusion device 200 is located, and when the second pressure signal variation is greater than a second preset pressure threshold, it is determined that the current infusion device meets the infusion completion condition.
As shown in fig. 7, fig. 7 is a control flowchart of the pressure infusion loading mode according to the present invention, which includes the steps of:
(1) After the system initialization is finished, entering a system self-checking mode;
(2) If the system self-check fails, giving a system fault alarm prompt;
(3) If the system passes the self-checking, the medical personnel can enter a pressure carrying confirmation mode;
(4) After the mode is set, the infusion function can be started, and the first infusion device 100 carries out infusion according to the set mode;
(5) In the infusion process, judging whether the infusion meets a pressure switching condition, namely, the pressure is reduced to a certain value, and realizing the switching of the infusion parameter mode;
(6) Specifically, the pressure switching conditions include: the peristaltic pump assembly 20 is rotated for N0 cycles, and whether the decrease in pressure value is greater than Δ P2 is detected; detecting whether the reduction of the pressure value is larger than delta P3, if so, emptying the bottle, otherwise, entering the transfusion mode of the second transfusion device 200, namely carrying to the next stage transfusion mode;
(8) Judging whether the infusion is finished or not in real time, and reducing the judged conditional pressure value;
(9) And if the infusion is finished, finishing the single infusion task and giving an infusion alarm prompt.
Therefore, the invention can realize the switching of the infusion modes under the pressure condition according to the method, namely when the pressure value is reduced to a certain value, the pressure value is used as the criterion for switching the infusion, and the invention is ingenious, simple and convenient to realize.
Of course, the present embodiment determines whether or not the infusion fluid satisfies the switching condition, and includes, in addition to the pressure-loading-mode switching: time loading mode switching, preset amount loading mode switching, or hybrid loading mode switching.
The time-loading mode switching includes: in the process of infusion by the first infusion device 100, after the infusion is completed for the first preset infusion time, the infusion switching mode is entered, and the infusion is switched to the second infusion device 200 for infusion.
The preset quantity loading mode switching includes: during the infusion process of the first infusion device 100, after the preset amount of the first infusion pump is completed, the infusion switching mode can be entered, and the second infusion device 200 is switched to perform infusion.
The hybrid mounting mode switching includes: during the infusion process of the first infusion device 100, the speed, the time and the preset amount of infusion are determined according to user-defined settings, a user-defined condition is formed, and after the user-defined condition is completed, an infusion switching mode can be entered, and the second infusion device 200 is switched to perform infusion.
In the present embodiment, the infusion completion conditions include: in the infusion process of the second infusion device 200, after the infusion is completed for the second preset infusion time, it can be determined that the current infusion device satisfies the infusion completion condition, and an infusion alarm prompt is output.
In the present embodiment, the infusion completion conditions include: during infusion of the second infusion device 200, after a predetermined second infusion pump preset amount is completed, it may be determined that the current infusion device satisfies an infusion completion condition, and an infusion alarm reminder may be output.
In the present embodiment, the infusion completion conditions include: in the process of infusion of the second infusion device 200, the speed, time and preset amount of infusion are determined according to user-defined settings, a user-defined infusion completion condition is formed, and after the condition is completed, it is determined that the current infusion device meets the infusion completion condition, and an infusion alarm prompt is output.
Wherein the first infusion device 100 is vertically offset from the second infusion device 200 by a height difference to cooperate with the system software algorithm. Firstly, a control signal of the motor 31 is sent to the motor driving module 32 by the main control unit 10, the motor driving module 32 sends a driving signal of the motor 31 to the motor 31 so as to control the motor 31 to rotate, the motor 31 drives the peristaltic pump assembly 20 to rotate through the belt pulley, the peristaltic pump sheet extrudes the infusion tube for infusion, and when the infusion is stable, the pressure detected by the upper pressure sensor 51 is basically stable. When the peristaltic pump assembly 20 rotates for a fixed number of turns N0, the infusion amount is constant, i.e., the amount of liquid output by the infusion tube is constant. When the infusion amount is reduced in the vertical height direction of the infusion tube, the peristaltic pump assembly 20 rotates for a fixed number of turns N0, the infusion tube is lowered by the fixed infusion amount by a height Delta P, the pressure is reduced by a liquid column Delta P according to the gravity principle, and whether the infusion enters the second infusion device 200 is judged according to the pressure reduction. The invention realizes the switching of the infusion modes under the pressure condition according to the method, namely, when the pressure value is reduced to a certain value, the pressure value is used as the criterion for switching the infusion, thereby realizing the ingenious, simple and convenient operation.
As shown in fig. 9, fig. 9 is a graph showing a relationship between the speed and the pressure in the pressure-loaded mode, and it can be seen that when a pressure is changed by a predetermined amount (pressure inflection point P0) while the first infusion set 100 is infusing at a speed C311, the infusion mode is switched to the second infusion set 200 (speed C312), and the switching condition between the first infusion set 100 and the second infusion set 200 is that the pressure change value is within a range Δ P; fig. 10 is a graph showing the relationship between the speed and the time in the time-mounted mode, and it can be seen that, when the infusion is completed for a predetermined time while the first infusion set 100 is infusing at the speed C321, the infusion mode is switched to the second infusion set 200 (speed C322), and the switching condition between the first infusion set 100 and the second infusion set 200 is defined by the infusion time T0; FIG. 11 is a graph showing the relationship between the speed and the preset amount in the preset amount loading mode, and it can be seen that when the first infusion set 100 completes the preset amount while infusion is being performed at the speed C331, the infusion mode is switched to the second infusion set 200 (speed C332), and the switching condition between the first infusion set 100 and the second infusion set 200 is a change in the preset amount L0; fig. 12 shows a mixed loading mode, which is defined by a user, and can be a switching condition of preset amount, pressure and time, and the speed and the preset amount of infusion are determined according to the self-definition of medical staff, and the upper pressure sensor 51 is responsible for detecting the function of an empty bottle.
As shown in fig. 8, the control flowchart of the infusion solution loading mode according to the present invention includes the steps of:
(1) After the system initialization is finished, entering a system self-checking mode;
(2) If the system self-check fails, giving a system fault alarm prompt;
(3) If the system passes the self-checking, the medical staff can enter a setting confirmation mode;
(4) After the mode is set, the infusion function can be started, and the first infusion device 100 carries out infusion according to the set mode;
(5) In the infusion process, whether the infusion meets the switching conditions is judged, and the switching conditions comprise: pressure mounting mode switching, time mounting mode switching, preset amount mounting mode switching, or hybrid mounting mode switching.
(6) If the switching condition is met, entering a next-stage infusion mode, and carrying out infusion by the second-stage infusion device according to a preset mode;
(7) Judging whether the infusion is finished in real time, wherein the judging conditions comprise time, preset quantity, pressure and other parameters;
(8) If the infusion is finished, finishing the single infusion task and giving an infusion alarm prompt.
According to the steps, the system can effectively realize infusion loading control and improve the usability of the machine. The purpose of the infusion carrying mode switching is that medical staff controls infusion parameters of the first and second infusion devices 200 according to clinical infusion requirements, including control of parameters such as the first and second infusion speeds, preset volume and infusion duration, so as to realize smooth, uninterrupted, accurate and reliable infusion of liquid medicine.
The steps show that the system can effectively realize continuous infusion loading control, and the continuous infusion loading control condition can also be time, preset quantity or mixed self-defined control.
In summary, the system and method provided by the embodiment have the following characteristics:
(1) Mixed infusion mode: and completing the switching of the transfusion carrying mode according to user self-definition by combining parameters such as preset quantity, time, transfusion speed, pressure change and the like.
(2) Remote carrying infusion mode control: the remote control carries the infusion mode, adjusts parameters such as preset quantity, time, infusion speed and the like in advance, remotely regulates and controls the infusion state and detects the infusion parameters, and realizes the remote control of infusion.
(3) Manual mode switching control: as shown in fig. 13, the infusion pipeline 102 includes a main infusion tube, a vertical tube connected to the first infusion device 100, a horizontal tube connected to the second infusion device 200, and a drip cup 105, an external liquid stop clamp 1031 and a one-way valve 104 disposed on the tube, and in this embodiment, the liquid stop clamp 103 may be adopted, so that the first infusion, the second infusion and even the third infusion can be manually selected, and the switching parameters such as the preset amount and the time can be customized by matching with the infusion mode.
(4) The transfusion switching mode is as follows: the switching mode is not limited to onboard infusion, cascade infusion, continuous infusion, intermittent infusion, piggyback infusion, etc.
(5) Primary and secondary medicine bottles: the height difference between the main medicine bottle and the secondary medicine bottle can be fixed, for example, the height difference between the main medicine bottle and the secondary medicine bottle is 20cm or more compared with the height difference between the secondary medicine bottle, or the height is not limited, the height is flexibly set according to clinical use conditions, and the disposable infusion set is matched with a corresponding consumable infusion set.
(6) And (3) detecting an empty drip bottle: the drip detection module detects an empty bottle, carries a switching mode, detects that the empty bottle breaks the infusion, and starts the other infusion.
(7) The working process is as follows: the first infusion device 100 or the second infusion device 200 is started to infuse, without limitation; manually controlling, temporarily setting any path of infusion, and then setting infusion parameters to continue infusion; the first infusion or the second infusion can be switched again and again.
Therefore, compared with the prior art, the invention has the following beneficial effects:
(1) The system and the method for carrying the infusion can realize effective control on the infusion, improve the accuracy of medication and reduce the risk of medication;
(2) The invention can adopt the pressure sensor to realize the control of the transfusion carrying, particularly adopts the pressure change to realize the switching of the first transfusion device and the second transfusion device, and can effectively realize the switching;
(3) The specific method of the invention relates to the number of rotation turns of the motor, can further drive the number of rotation turns of the peristaltic pump, and the specific number of turns corresponds to the change of the pressure value, thereby judging whether the switching of the infusion carrying is carried out or not, and the method is easy to realize and has low cost;
(4) The invention can adopt the preset time interval to realize the control of infusion carrying, particularly adopts the timing of the preset time to realize the parameter switching of the first and the second infusion devices, and the method is simple and convenient to realize;
(5) The invention can adopt the preset infusion amount to realize the control of infusion carrying, and particularly adopts the preset amount to realize the parameter switching of the first infusion device and the second infusion device, and the method is reliable to realize;
(6) The invention realizes the control of infusion carrying by mixing the preset infusion time and the preset amount, and particularly realizes the parameter switching of the first infusion device and the second infusion device by adopting the preset time and the preset amount according to the user definition;
(7) The invention adopts a manual and automatic mode to realize the switching of the infusion modes and realize accurate and safe medication; the switching of infusion carrying can be effectively realized;
(8) A system solution adopting switching similar to infusion carrying does not exist in the market, and market expansion is facilitated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.

Claims (10)

1. An infusion mode control system for an infusion pump, comprising:
the device comprises a main control unit, a peristaltic pump assembly, a motor unit, a coding monitoring module and a pressure detection module, wherein the motor unit is connected with the peristaltic pump assembly and used for rotationally driving the peristaltic pump assembly to extrude an infusion tube to infuse, the coding monitoring module is connected with the motor unit and used for detecting the number of turns of rotation data of the motor unit, the pressure detection module is connected with the main control unit and used for feeding back a liquid pressure value in an infusion pipeline in real time, the main control unit is connected with the coding monitoring module and used for acquiring the number of turns of rotation data and determining whether to switch an infusion mode or not by combining the received liquid pressure value, and the infusion pipeline is of a double-channel switching structure;
the system further comprises a cloud service processing module and a remote monitoring processing module, the main control unit is communicated with the cloud service processing module through a communication module, and the cloud service processing module is used for realizing data interconnection and sharing between the main control unit and the remote Cheng Jianhu processing module.
2. The infusion mode control system according to claim 1, characterized in that:
the system also includes a bubble detection sensor module configured to detect a bubble size or an accumulated bubble volume in the liquid within the infusion tubing and send a bubble sensing signal to the master control unit.
3. The infusion mode control system according to claim 1, characterized in that:
the motor unit comprises a motor and a motor driving module, the output end of the motor is provided with the coding monitoring module, the coding monitoring module is used for detecting the motor rotor measurement data of the motor and feeding back the data to the main control unit, and the main control unit controls the motor driving module to realize the control of the motor after receiving the control signal.
4. The infusion mode control system according to any one of claims 1 to 3, characterized in that:
the peristaltic pump assembly is connected with a first infusion device and a second infusion device through infusion pipelines, the first infusion device and the second infusion device are not located on the same horizontal plane, the first infusion device and the second infusion device are arranged in a layered mode, a height difference exists between the first infusion device and the second infusion device, and the first infusion device and the second infusion device are switched between a conduction state and a liquid stopping state through a double-channel switching structure of the infusion pipelines.
5. A control method of an infusion mode control system for an infusion pump, characterized in that the method applies the infusion mode control system for an infusion pump according to any one of claims 1 to 4 for the switching control of the infusion mode, the method comprising the steps of:
setting an infusion switching mode configured to respond to receiving an infusion switching signal from the main control unit;
carrying out infusion on the first infusion device according to a preset first-stage infusion mode; in the infusion process, the first infusion device conducts infusion at a first rate and judges whether the current infusion device meets infusion switching conditions or not;
if the transfusion switching condition is met, entering a transfusion switching mode to enable the first transfusion device to be switched from a conduction state to a liquid stopping state, switching the second transfusion device from the liquid stopping state to the conduction state, performing transfusion on the second transfusion device according to a preset second-stage transfusion mode, and performing transfusion by the second transfusion device at a second speed;
and judging whether the current infusion device meets an infusion completion condition in real time, if so, completing the current infusion task and outputting an infusion alarm prompt, wherein the infusion switching condition comprises pressure carrying mode switching, time carrying mode switching, preset volume carrying mode switching or user-defined carrying mode switching.
6. The method of claim 5, wherein:
when the infusion function is started, the belt pulley is driven to rotate by the rotation of the motor, the peristaltic pump assembly is driven to rotate, the liquid pressure value in the infusion pipeline where the first infusion device is located is detected in real time within the preset cycle number of the peristaltic pump assembly, the first pressure signal variation of the infusion pipeline where the first infusion device is located is judged through the pressure detection module, and when the first pressure signal variation is larger than a first preset pressure threshold value, the current infusion device can be determined to meet the infusion switching condition.
7. The method of claim 6, wherein:
when the infusion is stable, the pressure detection module detects that the pressure in the infusion pipeline is stable, when the infusion amount is reduced in the vertical height direction of the infusion tube of the first infusion device, the peristaltic pump assembly rotates for a preset period of turns to enable the liquid level of the infusion tube of the first infusion device to be lowered, according to the gravity principle, a mathematical model of the infusion device between the pressure in the infusion pipeline and the liquid level of the infusion pipeline in the infusion process is obtained, and therefore whether the current pressure signal variation meets the infusion switching condition or not is judged.
8. The method of claim 5, wherein:
in the process of infusion of the first infusion device, after infusion for the first preset infusion time is finished, an infusion switching mode can be entered, and the infusion is switched to the second infusion device for infusion;
in the process of infusion of the first infusion device, after the preset amount of the first infusion pump is finished, the infusion switching mode can be entered, and the infusion is switched to the second infusion device for infusion;
in the process of infusion of the first infusion device, the speed, the time and the preset amount of infusion are determined according to user-defined settings to form a user-defined condition, and after the user-defined condition is completed, an infusion switching mode can be entered and the second infusion device is switched to carry out infusion.
9. The method of claim 7, wherein:
the transfusion completion condition includes: in the infusion process of the second infusion device, the liquid pressure value in the infusion pipeline where the second infusion device is located is detected in real time, the second pressure signal variation of the infusion pipeline where the second infusion device is located is judged through the pressure detection module, and when the second pressure signal variation is larger than a second preset pressure threshold value, the condition that the current infusion device meets the infusion completion condition can be determined.
10. The method of claim 8, wherein:
the transfusion completion condition includes: in the infusion process of the second infusion device, after the infusion is finished for the second preset infusion time, the current infusion device can be determined to meet the infusion finishing condition, and an infusion alarm prompt is output;
the transfusion completion condition includes: in the infusion process of the second infusion device, after the preset amount of the second infusion pump is finished, the current infusion device can be determined to meet the infusion finishing condition, and an infusion alarm prompt is output;
the transfusion completion condition includes: in the process of infusion of the second infusion device, the speed, the time and the preset amount of infusion are determined according to user-defined settings to form a user-defined infusion completion condition, and after the condition is completed, the condition that the current infusion device meets the infusion completion condition can be determined, and an infusion alarm prompt is output.
CN202210921202.4A 2022-08-02 2022-08-02 Infusion mode control system and method for infusion pump Pending CN115356957A (en)

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