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Flow control method and device and infusion pump

A flow control and infusion pump technology, applied in the fields of devices, infusion pumps, and flow control methods, can solve the problems of poor load capacity, affecting the operation accuracy of infusion pumps, and poor infusion accuracy, so as to avoid load capacity Poor, improve the effect of severe heat generation, and improve stability

Pending Publication Date: 2022-05-03
湖南比扬医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the driving characteristics of the motor, there are many disadvantages in the low-speed operation range of various motors: for DC motors, the motor speed is generally controlled by adjusting the duty cycle. Affect the operation accuracy of the infusion pump; for stepper motors, by increasing the current to output high torque at low speed, the power will generally produce a large loss, which will cause problems such as equipment heating
Existing infusion pumps have the problems of poor infusion accuracy and large power loss in the state of low infusion flow

Method used

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  • Flow control method and device and infusion pump
  • Flow control method and device and infusion pump
  • Flow control method and device and infusion pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Please refer to figure 1 , figure 1 A schematic block diagram of the infusion pump 100 provided for this embodiment. The infusion pump 100 includes a device body 110 , a memory 120 and a processor 130 .

[0057] The memory 120 and the processor 130 are electrically connected directly or indirectly to realize data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines. The infusion pump 100 includes at least one software function module that can be stored in the memory 120 in the form of software or firmware (Firmware) or solidified in the operating system (Operating System, OS for short) of the infusion pump 100 . The processor 130 is used to execute executable modules stored in the memory 120, such as software function modules and computer programs included in the device body 110, and the device body 110 also includes a device shell and a hardware interface, and ...

Embodiment 2

[0098] Corresponding to the foregoing method embodiments, the present application further provides a flow control device.

[0099] Please refer to Figure 4 , Figure 4 It is a schematic diagram of the functional modules of the flow control device. The flow control device 400 includes a judgment module 410 , a determination module 420 , an acquisition module 430 , a calculation module 440 and a control module 450 .

[0100] In this embodiment, the judging module 410 may be used to: judge whether the real-time infusion flow of the infusion pump is less than or equal to a preset flow threshold;

[0101] The determining module 420 may be configured to: if the real-time infusion flow is less than or equal to the preset flow threshold, determine the first rotational speed of the motor of the infusion pump according to the real-time infusion flow;

[0102] The acquisition module 430 can be used to: acquire the intermittent operation control cycle and the preset intermittent operat...

Embodiment 3

[0108] In addition, an embodiment of the present disclosure provides an infusion pump, including a memory and a processor, the memory stores a computer program, and when the computer program runs on the processor, the flow rate provided by the above-mentioned method embodiment 1 is executed. Control Method.

[0109] The infusion pump provided in this embodiment can implement the flow control method shown in Embodiment 1, and to avoid repetition, details are not repeated here.

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Abstract

The embodiment of the invention provides a flow control method and device and an infusion pump. The method comprises the steps that whether the real-time infusion flow of the infusion pump is smaller than or equal to a preset flow threshold value or not is judged; if the real-time infusion flow is smaller than or equal to the preset flow threshold value, the motor is controlled to intermittently operate at a preset intermittent operation rotating speed; if the real-time infusion flow is larger than the preset flow threshold value, the second rotating speed of the motor is determined according to the real-time infusion flow, and the motor is controlled to operate at the second rotating speed. According to the infusion pump, through the mode that the motor is controlled to intermittently operate at a high speed when the real-time flow of the infusion pump is low, the problem that the loading capacity is poor when a direct-current motor operates at a low speed is solved, the accuracy of the flow of the infusion pump is guaranteed, meanwhile, the problem that heating is serious when a stepping motor operates at a low speed is solved, and the stability of the infusion pump is effectively improved.

Description

technical field [0001] The present application relates to the technical field of equipment control, in particular to a flow control method, device and infusion pump. Background technique [0002] In recent years, with the rapid development of the medical device industry, various types of smart medical devices have been launched on the market, among which infusion pumps have been widely used as a smart infusion device. The current flow control scheme adopted by the infusion pump is that the equipment sets the infusion flow, and then the main control will convert the flow into a fixed number of revolutions of the motor, and finally the motor runs at this fixed speed at a constant speed. In the above scheme, when the infusion flow rate set by the infusion pump is lower, the rotation speed of the motor is slower. Due to the driving characteristics of the motor, there are many disadvantages in the low-speed operation range of various motors: for DC motors, the motor speed is gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
CPCG05D7/0617
Inventor 陈超廖金凤李赞
Owner 湖南比扬医疗科技有限公司