CN101653630B - Infusion pump calibration device - Google Patents
Infusion pump calibration device Download PDFInfo
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- CN101653630B CN101653630B CN 200910092731 CN200910092731A CN101653630B CN 101653630 B CN101653630 B CN 101653630B CN 200910092731 CN200910092731 CN 200910092731 CN 200910092731 A CN200910092731 A CN 200910092731A CN 101653630 B CN101653630 B CN 101653630B
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- 238000001802 infusion Methods 0.000 title claims abstract description 143
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 238000010586 diagram Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 210000004761 scalp Anatomy 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides an infusion pump calibration device, comprising an output quantity acquisition unit, which is used for acquiring liquid volume output by an infusion pump within a presetting time; an operating quantity acquisition unit which is used for acquiring the operating quantity of the pump body of the infusion pump within a presetting time; a calibration generating unit which is used for generating liquid volume pumped by the pump body of the infusion pump with one circle according to the liquid volume and the operating quantity of the pump body and leading the liquid volume pumped by the pump body with one circle to be used as calibration output for controlling the operating speed of the pump body. By adopting the invention, the device can calibrate the infusion pump simply and conveniently.
Description
Technical Field
The invention relates to the field of medical science and technology, in particular to an infusion pump calibration device.
Background
Infusion is one of the important treatment means of clinical medicine, and with the development of the technical level of medication, the traditional infusion mode of a transfusion bottle is limited to the reasons of precision, speed range, infusion pressure, safety and the like, and is inevitably replaced by an infusion pump with high precision, wide infusion flow speed range and controllable pump pressure.
The infusion pump periodically extrudes the infusion pipeline through the pump body to form liquid inlet and infusion for 2 periods, the liquid inlet amount of each liquid inlet period is related to the inner diameter and the wall thickness of the infusion pipeline, namely, the infusion pump needs to calibrate the used infusion apparatus for realizing accurate infusion, and related parameters of the infusion apparatus are solidified into the infusion pump, and the process is that the infusion pump calibrates the infusion apparatus.
The transfer pump uses special transfusion system consumptive material originally, and special consumptive material geometric dimension is stable, can be better satisfy the required precision, nevertheless because special consumptive material price is high, has restricted the using widely of transfer pump. In recent years, manufacturers have started to introduce infusion pump products using general disposable infusion sets, and the application of infusion pumps in clinical medicine is rapidly popularized, but another problem is brought along with the popularization of infusion pumps: the general infusion apparatus consumables of different infusion apparatus manufacturers have great difference, so that the infusion pump calibration is more complicated. In order to ensure the infusion precision, the infusion pump professional has to recalibrate the infusion pump frequently, which wastes much time. The general infusion apparatus consumables depend on professional services in the clinical popularization of the infusion pump, the popularization cost of the infusion pump is increased, the services are not timely, customers often complain about the services, and the clinical use effect of the infusion pump is influenced.
In summary, the calibration of the infusion pump at present has the problem of complex operation, and how to calibrate the infusion pump simply and quickly is a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention mainly aims to provide an infusion pump calibration device to solve the problem that the infusion pump calibration operation in the prior art is complex.
In order to achieve the above object, an embodiment of the present invention provides an infusion pump calibration apparatus, including: the output quantity acquisition unit is used for acquiring the volume of the liquid output by the infusion pump within a preset time; the operation quantity acquisition unit is used for acquiring the pump body operation quantity of the infusion pump in the preset time; and the calibration generating unit is used for generating the volume of the liquid pumped out by the pump body of the infusion pump in a single circle according to the volume of the liquid and the operation amount of the pump body, and taking the volume of the liquid pumped out by the pump body in the single circle as calibration output for controlling the operation speed of the pump body.
Preferably, the output quantity acquiring unit includes: the accommodating bin is used for accommodating liquid output by the infusion pump; the liquid drop sensing module is used for acquiring the quantity of liquid drops output by the infusion pump within preset time; and the first calculator is used for calculating the liquid volume according to the volume of each drop known in advance and the number of the drops.
Wherein, the liquid drop response module includes: an infrared sensor; alternatively, an ultrasonic sensor.
Preferably, the output quantity acquiring unit includes: the accommodating bin is used for accommodating liquid output by the infusion pump; the weight sensor is used for acquiring the weight of the liquid output by the infusion pump within preset time; a second calculator for calculating the volume of the liquid based on the density of the liquid and the weight of the liquid.
Preferably, the output quantity acquiring unit includes: the accommodating bin is used for accommodating liquid output by the infusion pump; the liquid level measuring instrument is used for acquiring the liquid level of the liquid output by the infusion pump in the accommodating bin within preset time; a third calculator for calculating the liquid volume from the cross-sectional area of the holding bin and the liquid level in the holding bin.
Preferably, the output quantity acquiring unit includes: the accommodating bin is used for accommodating liquid output by the infusion pump; the flow detector is used for acquiring the flow of the liquid input into the accommodating bin; a fourth calculator for calculating the liquid volume based on the flow rate and the time.
Specifically, the calibration generating unit includes: the calibration generation module is used for generating the volume of the liquid pumped out by the pump body of the infusion pump in a single circle according to the volume of the liquid and the operation amount of the pump body; and the calibration output module is used for taking the volume of the liquid pumped out by the pump body in a single circle as calibration output for controlling the running speed of the pump body.
From the above description, it can be seen that, by acquiring the volume of the liquid output by the infusion pump and the pump body running amount of the infusion pump within the preset time, the volume of the liquid pumped by the pump body of the infusion pump in a single circle can be calculated, so that the infusion pump can be calibrated simply and conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a block diagram of an infusion pump calibration apparatus according to an embodiment of the present invention;
fig. 2 is a block diagram of an output quantity acquisition unit 101 in a calibration apparatus for an infusion pump according to an embodiment of the present invention;
FIG. 3 is a detailed structural diagram of an infusion pump calibration device according to an embodiment of the invention;
FIG. 4 is a schematic diagram of another detailed structure of an infusion pump calibration device according to an embodiment of the invention;
fig. 5 is another block diagram of the output quantity obtaining unit 101 in the calibration apparatus for an infusion pump according to the embodiment of the present invention;
fig. 6 is a block diagram showing another configuration of an output quantity obtaining unit 101 in a calibration apparatus for an infusion pump according to an embodiment of the present invention;
fig. 7 is a block diagram showing another configuration of an output quantity obtaining unit 101 in a calibration apparatus for an infusion pump according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a detailed structure of a calibration device for an infusion pump according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a calibration device for an infusion pump according to an embodiment of the 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.
Because the calibration operation of the infusion pump in the prior art is complex and needs to be operated by professional technicians, based on the operation, the embodiment of the invention provides the infusion pump calibration device, the calibration of the infusion pump can be conveniently and simply realized, and the non-professional technicians can also operate the infusion pump. The present invention will be described in detail below with reference to the accompanying drawings.
An embodiment of the present invention provides an infusion pump calibration apparatus, fig. 1 is a block diagram of a configuration of an infusion pump calibration apparatus according to an embodiment of the present invention, and as shown in fig. 1, the apparatus includes:
an output quantity acquisition unit 101 for acquiring a volume of liquid output by the infusion pump within a predetermined time;
a pump body operation amount obtaining unit 102, configured to obtain a pump body operation amount of the infusion pump within a predetermined time;
and the calibration generating unit 103 is used for generating the volume of the liquid pumped by the pump body of the infusion pump in a single circle according to the volume of the liquid and the operation amount of the pump body, and taking the volume of the liquid pumped by the pump body in the single circle as calibration output for controlling the operation speed of the pump body.
From the above description, it can be seen that the volume of the liquid output by the infusion pump and the pump body operation amount of the infusion pump are obtained within the preset time, and the volume of the liquid pumped by the pump body of the infusion pump in a single circle can be calculated, so that the operation speed of the pump body can be controlled according to the volume of the liquid pumped by the pump body in a single circle, and the precision calibration of the infusion pump is realized.
Specifically, the calibration generating unit 103 may include: the calibration generation module is used for generating the volume of the liquid pumped out by the pump body of the infusion pump in a single circle according to the volume of the liquid and the operation amount of the pump body; and the calibration output module is used for outputting the volume of the liquid pumped out by the pump body in a single circle as calibration for controlling the running speed of the pump body. The calibration generating unit can be connected with an infusion pump and is used for transmitting the volume of the liquid pumped out by the pump body in a single circle to the infusion pump, and the infusion pump can control the rotating speed of the pump body according to the volume of the liquid pumped out by the pump body in a single circle and the infusion requirement of a user, so that accurate infusion is realized.
Specifically, as shown in fig. 2, the output quantity acquiring unit 101 may include:
a container 1010 for containing liquid output by the infusion pump;
the liquid drop sensing module 1011 is used for acquiring the quantity of liquid drops output by the infusion pump within a preset time;
a first calculator 1012 for calculating the liquid volume based on the previously known volume of each droplet and the number of droplets.
The liquid drop sensing module 1011 can be an infrared sensor, an ultrasonic sensor, or other sensors capable of acquiring the number of liquid drops.
Based on the structure shown in fig. 2, fig. 3 is a detailed structural schematic diagram of an infusion pump calibration device according to an embodiment of the invention, and as shown in fig. 3, the infusion pump calibration device is located outside the infusion pump, and the size of the drop formation opening of the holding bin is fixed and stable, which is equivalent to the known volume of each drop of liquid. The liquid drop sensing module is connected with the single chip microcomputer, the liquid drop sensing module comprises a receiving circuit and an emitting circuit, liquid drops are sensed through the receiving circuit and the emitting circuit, sensing results are transmitted to the single chip microcomputer, the single chip microcomputer is mainly used for calculating the quantity of the liquid drops within preset time according to the received sensing results, pump body operation data within the preset time are obtained through data communication with the infusion pump, and then the liquid quantity pumped out by the pump body in a single circle is calculated according to the quantity of the liquid drops and the pump body operation data. The predetermined time may be 1 minute. The following describes the present embodiment in detail by taking the liquid drop sensing module as an infrared sensor as an example.
When calibration is carried out, the infusion apparatus to be calibrated is filled with distilled water and clamped on the infusion pump, the pump body starts to operate, and pumped liquid enters the water inlet through the scalp needle. The liquid forms a liquid drop with stable volume through a liquid drop forming opening, and a signal for detecting the dropping of the liquid drop is transmitted and received through infrared rays. The number of the dropped liquid drops is recorded through the single chip microcomputer, the volume of liquid flowing into the accommodating bin is calculated according to the volume of each liquid drop known in advance, the amount of liquid pumped out by the pump body in a single circle (for example, the amount of liquid pumped out by the pump body in each circle) is calculated according to pump body operation data (for example, the number of operation cycles and the like) of the infusion pump, and the data are transmitted to a specific structure of the infusion pump (for example, the other single chip microcomputer is used for controlling the rotating speed of the infusion pump) through the single chip microcomputer so as to.
For example, the single chip transmits the information that the amount of liquid pumped by the pump body in a single circle is 1 ml to a specific structure of the infusion pump, if a user needs to output 50ml of liquid in 1 hour, the user transmits the information that the user outputs 50ml of liquid in 1 hour to the infusion pump, for example, the flow rate can be set to be 50ml/h through a setting interface of the infusion pump, the infusion pump controls the rotation speed of the pump body according to the amount of liquid pumped by the pump body in a single circle, namely, the infusion pump controls the rotation speed to be 50 revolutions per hour, and therefore the infusion pump can accurately output 50ml of liquid in 1 hour.
In actual operation, the infusion pump calibration device may also be located inside the infusion pump, as shown in fig. 4, wherein the single chip is connected to a specific structure in the infusion pump and other circuit mechanisms, and the working principle of the single chip is similar to that of the structure shown in fig. 3, and is not described herein again.
Specifically, as shown in fig. 5, the output quantity acquiring unit 101 may further include:
a container 1010 for containing liquid output by the infusion pump;
a weight sensor 1013 for acquiring a weight of the liquid output by the infusion pump within a predetermined time;
a second calculator 1014 for calculating the liquid volume based on the density of the liquid and the weight of the liquid.
Alternatively, as shown in fig. 6, the output quantity acquiring unit 101 may include:
a container 1010 for containing liquid output by the infusion pump;
a liquid level measuring instrument 1015, which is used for acquiring the liquid level of the liquid output by the infusion pump in the accommodating bin within the preset time;
a third calculator 1016 for calculating the liquid volume based on the cross-sectional area of the holding chamber and the liquid level in the holding chamber.
Alternatively, as shown in fig. 7, the output quantity acquiring unit 101 may include:
a container 1010 for containing liquid output by the infusion pump;
a flow detector 1017 for acquiring the flow of the liquid input into the accommodating chamber, wherein the unit of the flow can be milliliter/hour;
a fourth calculator 1018 for calculating the liquid volume based on the flow rate and the time of the liquid.
Based on the structure shown in fig. 5, 6 or 7, fig. 8 is a detailed structural diagram of the infusion pump calibration device according to the embodiment of the present invention, as shown in fig. 8, the infusion pump calibration device is located outside the infusion pump, and the sensor signal measuring circuit, which may be the weight sensor 1013, or the liquid level measuring instrument 1015, or the flow rate detecting instrument 1017, is connected to the single chip microcomputer, similar to the single chip microcomputer in the structure shown in fig. 3 or 4, and the single chip microcomputer in this figure is used for calculating the amount of liquid pumped out by the pump body in a single circle. The working principle of the infusion pump calibration device is described below by taking the sensor signal measuring circuit as a weight sensor as an example.
When calibration is carried out, the infusion apparatus to be calibrated is filled with distilled water and clamped on the infusion pump, the pump body starts to operate, and pumped liquid enters the water inlet through the scalp needle. Distilled water in the infusion apparatus enters the accommodating bin, the weight sensor receives signals and starts to measure the weight of the inflow liquid, the volume of the liquid is calculated according to the weight of the liquid, the liquid volume pumped out by the pump body in a single circle (for example, the liquid volume pumped out by the pump body in each circle) is calculated according to the operation data (for example, the operation cycle number and the like) of the pump body, and the data is sent to a specific structure (for example, another single chip microcomputer) of the infusion pump through the single chip microcomputer so as to finish the precision calibration of the infusion apparatus.
In actual operation, the infusion pump calibration device may also be located inside the infusion pump, as shown in fig. 9, wherein the single chip is connected to a specific structure in the infusion pump and other circuit mechanisms, and the working principle of the single chip is similar to that of the structure shown in fig. 8, and is not described herein again.
In summary, the embodiment of the present invention utilizes a volumetric measurement technique, and measures the number of drops, liquid level, weight, flow rate, etc. of liquid in a predetermined time, calculates the amount of liquid pumped out by a single circle of the pump body, and determines the infusion precision parameters of the infusion pump, thereby implementing calibration. Compared with the prior art, the infusion pump calibration device provided by the embodiment of the invention can be used by non-professional personnel such as medical staff, and can be used for completing calibration simply and rapidly by non-professional personnel such as users.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. An infusion pump calibration device, characterized in that the device comprises:
the output quantity acquisition unit is used for acquiring the volume of the liquid output by the infusion pump within a preset time;
the operation quantity acquisition unit is used for acquiring the pump body operation quantity of the infusion pump in the preset time;
the calibration generating unit is used for generating the volume of the liquid pumped out by the pump body of the infusion pump in a single circle according to the volume of the liquid and the operation amount of the pump body, and taking the volume of the liquid pumped out by the pump body in the single circle as calibration output for controlling the operation speed of the pump body;
wherein the output quantity acquiring unit includes:
the accommodating bin is used for accommodating liquid output by the infusion pump;
the liquid drop sensing module is used for acquiring the quantity of liquid drops output by the infusion pump within preset time;
the first calculator is used for calculating the volume of the liquid output by the infusion pump within the preset time according to the volume of each droplet and the number of the droplets which are known in advance; or,
the output quantity acquisition unit includes:
the accommodating bin is used for accommodating liquid output by the infusion pump;
the weight sensor is used for acquiring the weight of the liquid output by the infusion pump within preset time;
the second calculator is used for calculating the volume of the liquid output by the infusion pump in a preset time according to the density of the liquid and the weight of the liquid; or,
the output quantity acquisition unit includes:
the accommodating bin is used for accommodating liquid output by the infusion pump;
the liquid level measuring instrument is used for acquiring the liquid level of the liquid output by the infusion pump in the accommodating bin within preset time;
the third calculator is used for calculating the volume of the liquid output by the infusion pump within a preset time according to the cross-sectional area of the containing bin and the liquid level in the containing bin; or,
the output quantity acquisition unit includes:
the accommodating bin is used for accommodating liquid output by the infusion pump;
the flow detector is used for acquiring the flow of the liquid input into the accommodating bin;
and the fourth calculator is used for calculating the volume of the liquid output by the infusion pump within the preset time according to the flow and the time.
2. The apparatus of claim 1, wherein the droplet sensing module comprises:
an infrared sensor; or
An ultrasonic sensor.
3. The apparatus of claim 1, wherein the calibration generation unit comprises:
the calibration generation module is used for generating the liquid volume pumped out by the pump body of the infusion pump in a single circle according to the liquid volume output by the infusion pump in preset time and the running amount of the pump body;
and the calibration output module is used for taking the volume of the liquid pumped out by the pump body in a single circle as calibration output for controlling the running speed of the pump body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910092731 CN101653630B (en) | 2009-09-16 | 2009-09-16 | Infusion pump calibration device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910092731 CN101653630B (en) | 2009-09-16 | 2009-09-16 | Infusion pump calibration device |
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| CN101653630A CN101653630A (en) | 2010-02-24 |
| CN101653630B true CN101653630B (en) | 2013-06-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103212130A (en) * | 2012-01-19 | 2013-07-24 | 北京科力建元医疗科技有限公司 | Method for calibrating output accuracy of transfusion controller |
| CN103212139B (en) * | 2013-03-25 | 2014-09-17 | 苏州泽德医疗器械有限公司 | Calibrating method of scale length of syringe push pump |
| CN104258485B (en) * | 2014-10-17 | 2016-08-24 | 中国计量科学研究院 | Infusion pump/infusion pump detector integrated correction device |
| CN105854105B (en) * | 2015-04-24 | 2019-08-06 | 成都市佳颖医用制品有限公司 | The pre- punching method of anti-coagulants for sampled plasma |
| CN114441209B (en) * | 2022-01-28 | 2024-05-17 | 瑞幸咖啡科技(海南)有限公司 | Calibration method, device, equipment and medium of liquid output equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195873A (en) * | 1992-03-13 | 1993-03-23 | C.A.P., Inc. | Chemical transfer system |
| CN2562173Y (en) * | 2002-08-23 | 2003-07-23 | 陈美俊 | Fluid metering controllers |
| CN101403762A (en) * | 2008-11-13 | 2009-04-08 | 镇江奥迪康医疗仪器有限责任公司 | Calibration device and method for peristaltic pump of electrolytic analysis instrument |
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2009
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195873A (en) * | 1992-03-13 | 1993-03-23 | C.A.P., Inc. | Chemical transfer system |
| CN2562173Y (en) * | 2002-08-23 | 2003-07-23 | 陈美俊 | Fluid metering controllers |
| CN101403762A (en) * | 2008-11-13 | 2009-04-08 | 镇江奥迪康医疗仪器有限责任公司 | Calibration device and method for peristaltic pump of electrolytic analysis instrument |
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