CN113339247A - Two-section type infusion pressure acquisition and detection system of infusion pump - Google Patents
Two-section type infusion pressure acquisition and detection system of infusion pump Download PDFInfo
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- CN113339247A CN113339247A CN202110627588.3A CN202110627588A CN113339247A CN 113339247 A CN113339247 A CN 113339247A CN 202110627588 A CN202110627588 A CN 202110627588A CN 113339247 A CN113339247 A CN 113339247A
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- 238000001802 infusion Methods 0.000 title claims abstract description 89
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a two-section type infusion pressure acquisition and detection system of an infusion pump, and particularly relates to the technical field of infusion pump application, which comprises two pressure sensors, namely a first pressure sensor and a second pressure sensor, which are connected to two ends of an infusion pipeline part of the infusion pump, and are arranged at two ends of a motor extrusion device, wherein the output ends of the first pressure sensor and the second pressure sensor are sequentially connected with an operational amplifier and an A/D converter, the output end of the A/D converter is connected with a microcontroller, and the operational amplifier and the A/D converter are used for converting infusion pipeline pressure signals acquired by the two pressure sensors into A/D signals and then inputting the A/D signals into the microcontroller; wherein, microcontroller is connected with pressure setting module and data processing module. The invention effectively improves the alarm accuracy of the infusion pump, and compared with the common infusion pump, the infusion pump designed by the method of the invention is not easy to misreport and block even under the condition of great temperature difference.
Description
Technical Field
The invention relates to the technical field of infusion pump application, in particular to a two-section type infusion pressure acquisition and detection system of an infusion pump.
Background
At present, the number of infusion apparatus manufacturers in China is huge, and infusion apparatuses produced by different manufacturers have great differences in toughness, tube wall thickness, tube diameter and the like due to the difference of raw materials, production proportion, production process and the like. In the clinical use process, the device is particularly obvious in the use condition of matching with an infusion pump, and is mainly embodied in that the infusion sets produced by different manufacturers are used for triggering the infusion pump to alarm at different pressures, namely, the blocking alarm can be triggered by mistake by using some infusion sets under the same pressure.
The infusion pump mainly comprises an infusion pump system, a microcomputer system, a motor extrusion device, a monitoring device, an alarm device and an infusion pipeline. The input tube of the infusion pump is greatly influenced by temperature change due to the elasticity of the infusion pipeline, and the pressure required for triggering the infusion pump to block and alarm is different when infusion sets produced by the same manufacturer are used in different temperature environments. How to effectively avoid the above situations, so that the problem of improving the alarm accuracy of the infusion pump is an urgent need to be solved.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a two-stage infusion pressure acquisition and detection system for an infusion pump, wherein two pressure sensors are connected to two ends of a portion of an infusion pump connected to an infusion pipeline, the pressure is detected in two stages, and the pressure is converted into a digital signal through analog conversion and sent to a microcontroller for processing, so as to determine whether the infusion pipeline is smooth or not and whether the infusion pump is working normally, thereby effectively improving the alarm accuracy of the infusion pump, and preventing false alarm and blockage even if the temperature difference is large.
In order to achieve the purpose, the invention provides the following technical scheme: a two-section type infusion pressure acquisition and detection system of an infusion pump is characterized in that two pressure sensors, namely a first pressure sensor and a second pressure sensor, are connected to two ends of an infusion pipeline part of the infusion pump and are arranged at two ends of a motor extrusion device, the output ends of the first pressure sensor and the second pressure sensor are sequentially connected with an operational amplifier and an A/D converter, the output end of the A/D converter is connected with a microcontroller, and the operational amplifier and the A/D converter are used for converting infusion pipeline pressure signals acquired by the two pressure sensors into A/D signals and inputting the A/D signals into the microcontroller;
the microcontroller is connected with a pressure setting module and a data processing module, the pressure setting module is used for setting a standard blocking pressure initial threshold value of an infusion pipeline part of the infusion pump in the infusion process when the infusion pump is started, and the data processing module is used for processing and judging an infusion pipeline pressure A/D signal received by the microcontroller.
In a preferred embodiment, the microcontroller is further connected with an alarm module, and when the data processing module acquires the information that the pressure value of the infusion pipeline exceeds the standard blocking pressure initial threshold value, the data processing module controls the alarm module to alarm and remind.
In a preferred embodiment, the microcontroller is further connected with a storage module for storing the pressure information obtained by the two pressure sensors and obtaining the operating state information of the infusion pump.
In a preferred embodiment, the microcontroller is further connected with a motor driving unit, and the motor driving unit is connected with the motor squeezing device and is used for driving the motor squeezing device to squeeze the infusion tube to complete liquid medicine delivery.
In a preferred embodiment, the microcontroller is further connected with an input module, and the input module is used for inputting the working operation frequency of the motor squeezing device and controlling the pressure setting module to work.
The invention has the technical effects and advantages that:
the invention realizes the improvement of the infusion pump pressure detection method under the condition of not changing the structure of the existing infusion pump and adding any electronic component, effectively improves the alarm accuracy of the infusion pump, and compared with the common infusion pump, the infusion pump designed by the method of the invention is not easy to misreport and block even under the condition of great temperature difference.
Drawings
FIG. 1 is a schematic diagram of the system framework of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The two-stage infusion pressure acquisition and detection system of the infusion pump as shown in fig. 1 comprises two pressure sensors, namely a first pressure sensor and a second pressure sensor, which are connected to two ends of an infusion pipeline part of the infusion pump and are arranged at two ends of a motor extrusion device, wherein the output ends of the first pressure sensor and the second pressure sensor are sequentially connected with an operational amplifier and an A/D converter, the output end of the A/D converter is connected with a microcontroller, and the operational amplifier and the A/D converter are used for converting infusion pipeline pressure signals acquired by the two pressure sensors into A/D signals and then inputting the A/D signals into the microcontroller;
the microcontroller is connected with a pressure setting module and a data processing module, the pressure setting module is used for setting a standard blocking pressure initial threshold value of an infusion pipeline part of the infusion pump in the infusion process when the infusion pump is started, and the data processing module is used for processing and judging an infusion pipeline pressure A/D signal received by the microcontroller.
The microcontroller is also connected with an alarm module, and when the data processing module acquires the information that the pressure value of the infusion pipeline exceeds the standard blocking pressure initial threshold value, the alarm module is controlled to alarm and remind.
When the infusion pump works, the first pressure sensor and the second pressure sensor acquire the pressure on the infusion pipelines at two ends in real time, namely a first section pressure signal P1 and a second section pressure signal P2, the pressure signals are converted into a first section pressure A/D signal P1 and a second section pressure A/D signal P2 after being processed by the operational amplifier and the A/D converter and are transmitted to the microcontroller, the signals are processed by the data processing module, the pressure signals are compared with the standard blocking pressure initial threshold value P set by the pressure setting module, and when the acquired P1 and P1 are both smaller than P, the infusion pump normally operates.
When the infusion pipeline is blocked, if one of the first section of pressure signal P1 or the second section of pressure signal P2 acquired by the first pressure sensor and the second pressure sensor is greater than the standard blocking pressure initial threshold value P, the infusion pump judges that the infusion pump is blocked, and the microcontroller controls the alarm module to give an alarm, so that the alarm accuracy of the infusion pump is effectively improved.
The microcontroller is also connected with a storage module for storing the pressure information acquired by the two pressure sensors, acquiring the running state information of the infusion pump, and maintaining and cleaning the infusion pump according to the running state information.
The microcontroller is also connected with a motor driving unit, and the motor driving unit is connected with a motor extrusion device and used for driving the motor extrusion device to extrude the infusion pipeline to complete liquid medicine conveying.
The microcontroller is also connected with an input module, and the input module is used for inputting the working operation frequency of the motor extrusion device and controlling the pressure setting module to work.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. A two-section type infusion pressure acquisition and detection system of an infusion pump is characterized in that two pressure sensors, namely a first pressure sensor and a second pressure sensor, are connected to two ends of an infusion pipeline part of the infusion pump and are arranged at two ends of a motor extrusion device, the output ends of the first pressure sensor and the second pressure sensor are sequentially connected with an operational amplifier and an A/D converter, the output end of the A/D converter is connected with a microcontroller, and the operational amplifier and the A/D converter are used for converting infusion pipeline pressure signals acquired by the two pressure sensors into A/D signals and then inputting the A/D signals into the microcontroller;
the microcontroller is connected with a pressure setting module and a data processing module, the pressure setting module is used for setting a standard blocking pressure initial threshold value of an infusion pipeline part of the infusion pump in the infusion process when the infusion pump is started, and the data processing module is used for processing and judging an infusion pipeline pressure A/D signal received by the microcontroller.
2. The two-stage transfusion pressure collection and detection system of the transfusion pump of claim 1, wherein: the microcontroller is also connected with an alarm module, and when the data processing module acquires the information that the pressure value of the infusion pipeline exceeds the standard blocking pressure initial threshold value, the alarm module is controlled to alarm and remind.
3. The two-stage transfusion pressure collection and detection system of the transfusion pump of claim 1, wherein: the microcontroller is also connected with a storage module for storing the pressure information acquired by the two pressure sensors and acquiring the running state information of the infusion pump.
4. The two-stage transfusion pressure collection and detection system of the transfusion pump of claim 1, wherein: the microcontroller is also connected with a motor driving unit, and the motor driving unit is connected with a motor extrusion device and used for driving the motor extrusion device to extrude the infusion pipeline to complete liquid medicine conveying.
5. The two-stage transfusion pressure collection and detection system of the transfusion pump of claim 1, wherein: the microcontroller is also connected with an input module, and the input module is used for inputting the working operation frequency of the motor extrusion device and controlling the pressure setting module to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110627588.3A CN113339247A (en) | 2021-06-04 | 2021-06-04 | Two-section type infusion pressure acquisition and detection system of infusion pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110627588.3A CN113339247A (en) | 2021-06-04 | 2021-06-04 | Two-section type infusion pressure acquisition and detection system of infusion pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114788909A (en) * | 2022-03-15 | 2022-07-26 | 深圳圣诺医疗设备股份有限公司 | Infusion state detection method for infusion pump and infusion pump |
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| CA1309914C (en) * | 1989-06-13 | 1992-11-10 | Leroy E. Groshong | Infusion pump |
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2021
- 2021-06-04 CN CN202110627588.3A patent/CN113339247A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114788909A (en) * | 2022-03-15 | 2022-07-26 | 深圳圣诺医疗设备股份有限公司 | Infusion state detection method for infusion pump and infusion pump |
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