CN102735392A - Method for detecting obstruction pressure of infusion pump - Google Patents
Method for detecting obstruction pressure of infusion pump Download PDFInfo
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- CN102735392A CN102735392A CN2012102185728A CN201210218572A CN102735392A CN 102735392 A CN102735392 A CN 102735392A CN 2012102185728 A CN2012102185728 A CN 2012102185728A CN 201210218572 A CN201210218572 A CN 201210218572A CN 102735392 A CN102735392 A CN 102735392A
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- infusion pump
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Abstract
The invention provides a method for detecting the obstruction pressure of an infusion pump. After an infusion pipeline is arranged on the infusion pump, the method comprises the following steps of: detecting an initial pressure value P0 of the infusion pipeline at first time, wherein the first time is the time of starting the infusion pump; detecting a real-time pressure value Pt of the infusion pipeline at second time, wherein the second time is any time after the infusion pump is started; and calculating a differential value of the real-time pressure value Pt and the initial pressure value P0, and outputting an alarm signal when the differential value is more than or equal to a preset pressure alarm threshold value M. The method can be used for disposable infusion sets made of different materials, and is high in alarm accuracy rate.
Description
Technical field
The present invention relates to medical instruments field, especially, relate to a kind of infusion pump blockage pressure detecting method.
Background technology
Tradition disposable transfusion device (hereinafter to be referred as transfusion device) is that main material production is made with PVC.Current, China transfusion device manufacturer quantity is huge, and the transfusion device that different manufacturers is produced is because of differences such as starting material, producting proportion, production technologies, and there is very big difference in the product of producing at aspects such as toughness, pipe thickness and caliber sizes.In clinical use; Especially show under the infusion pump operating position obviously to cooperate; It is different to be mainly reflected in the required pressure of transfusion device triggering infusion pump obstruction warning that uses different manufacturers to produce, and promptly under same pressure, uses some transfusion device false triggering " obstruction " to report to the police.In addition, because infusion pipeline self elasticity receives influence of temperature change very big, the transfusion device of same manufacturer production uses under the different temperatures environment, and it is also inequality that it triggers the required pressure of infusion pump obstruction warning.How effectively to avoid the above-mentioned the 2nd) the kind situation occurs, thus the warning accuracy that improves infusion pump is a urgent problem.
Existing infusion pump adopts pressure sensor is monitored infusion pipeline pressure in real time: at first; At a pressure alarm threshold value of infusion pump set inside M, after infusion pump started, pressure transducer continued infusion pipeline is monitored; At any t constantly, infusion pump is with detected real-time pressure value P
tPass to CPU, CPU is real-time pressure value P relatively
tWith the size of pressure alarm threshold value M, if real-time pressure value P
tLess than pressure alarm threshold value M, the infusion pump operate as normal, otherwise, trigger immediately and report to the police.
It detects principle: any t moment after infusion pump starts, the detected pressure P of pressure transducer
tEqual the elastic deformation f that woven hose resistance infusion pump door and pressure transducer extruding produce
tWith fluid pressure F in the woven hose
tSum, promptly
P
t=f
t+F
t （1）
Wherein, fluid pressure F in the woven hose
tBe the force value of actual needs monitoring, it should be noted that woven hose elastic deformation f
tBe not a definite value, but change, and variation range is bigger with factor affecting such as piping material, pipe thickness and temperature.For example, the morning and evening in the winter time, temperature is very low, and infusion pipeline is very hard, at this moment elastic deformation f
tVery big, fluid pressure F in the woven hose
tIncrease (slightly bending) fluid pressure F in the woven hose a little like infusion pipeline
tWith woven hose elastic deformation f
tSum just might be greater than pressure alarm threshold value M, and infusion pump just possibly reported " obstruction " by mistake.
Although infusion segment pump manufacturer has considered above-mentioned factor when design now, thereby calculate elastic deformation f through actual measurement infusion segment pipe performance parameter
tAnd it is built in the infusion pump; When infusion pump used, the infusion pump manufacturer required the operator to use the woven hose of appointment to solve the problems referred to above, but because the limitation of infusion pump manufacturer when selecting specific woven hose; In case when using the woven hose of non-appointment, this problem will exist.
Summary of the invention
The object of the invention is to provide a kind of high infusion pump blockage pressure detecting method of transfusion device, warning accuracy rate that can be used for unlike material, reports the technical matters of " obstruction " by mistake owing to transfusion device material difference to solve existing infusion pump pressure detection.
For realizing above-mentioned purpose, the invention provides a kind of infusion pump blockage pressure detecting method, after infusion pump installs infusion pipeline, may further comprise the steps:
101, detect the original pressure value P of said infusion pipeline in the very first time
0, wherein, the said very first time is the time that said infusion pump starts;
102, at the real-time pressure value P of the said infusion pipeline of second time detecting
t, wherein, said second time is the random time after said infusion pump starts; And
103, calculate said real-time pressure value P
tWith said original pressure value P
0Difference, when said difference during more than or equal to predefined pressure alarm threshold value M, output alarm signal.
Further,
When said infusion pump started, pressure transducer detected the original pressure value P of said infusion pipeline
0And pass to CPU.
The present invention has following beneficial effect:
Infusion pump blockage pressure detecting method of the present invention writes down the original pressure value P of infusion pipeline automatically
0, and with current pressure value P
tWith original pressure value P
0Thereby difference and predefined pressure alarm threshold value M compare to judge whether woven hose blocks, and can be used for the disposable transfusion device of unlike material, do not receive influence and the warning accuracy rate of environment and material high.
Except top described purpose, feature and advantage, the present invention also has other purpose, feature and advantage.To do further detailed explanation to the present invention with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the infusion pump blockage pressure detecting method of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, infusion pump blockage pressure detecting method of the present invention after infusion pump installs infusion pipeline, may further comprise the steps:
101, pressure transducer is connected the infusion pump start with woven hose;
102, pressure transducer detects the original pressure value P of infusion pipeline
0And pass to CPU;
103, pressure transducer detects the real-time pressure value P of infusion pipeline in real time
tAnd pass to CPU;
104, CPU calculates current pressure value P in real time
tWith original pressure value P
0Difference, when difference less than predefined pressure alarm threshold value M, the infusion pump operate as normal, otherwise, output alarm signal.Pressure alarm threshold value M sets according to experimental data, and is stored among the CPU in advance.
Judgement principle of the present invention is:
Start the moment of infusion pump at the infusion pump normal boot-strap and after correctly installing infusion pipeline, the detected pressure P of pressure transducer
0Equal the elastic deformation f that woven hose resistance infusion pump door and pressure transducer extruding produce
0With fluid pressure F in the woven hose
0Sum, that is:
P
0=f
0+F
0 （2）
At this moment, because the interior fluid pressure F of woven hose
0Very low, can ignore and not remember, then:
P
0≈f
0 （3）
Any t moment after infusion pump starts, the detected pressure P of pressure transducer
tEqual the elastic deformation f that woven hose resistance infusion pump door and pressure transducer extruding produce
tWith fluid pressure F in the woven hose
tSum, promptly
P
t=f
t+F
t （4）
Because the woven hose elastic deformation is the woven hose inherent characteristic, mainly receives material and temperature effect, the other factors influence is very little, consider that difference variation is little in the use of woven hose single, and material is constant, so the twice woven hose elastic deformation value f in front and back
0And f
tApproximately equal, then:
P
t–P
0=F
t（5）
The left side of formula (5) equal sign is the poor of the detected pressure of twice pressure transducer in front and back, and the right is transfusion liquid in pipe real-time pressure value.
According to formula (5), only a pressure alarm threshold value M need be set in advance, work as P
tWith P
0Difference be greater than or equal to alarm threshold value M value, promptly trigger to block report to the police.
To sum up, infusion pump blockage pressure detecting method of the present invention has realized the improvement to the infusion pump pressure detection method under the situation that does not change existing infusion pump structure, any electronic devices and components of increase, improve the warning accuracy of infusion pump effectively.Compare with the common transfusion pump, even the infusion pump that adopts method design of the present invention also is not easy wrong report " obstruction " under the very big situation of temperature contrast.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. an infusion pump blockage pressure detecting method after infusion pump installs infusion pipeline, is characterized in that, may further comprise the steps:
101, detect the original pressure value P of said infusion pipeline in the very first time
0, wherein, the said very first time is the time that said infusion pump starts;
102, at the real-time pressure value P of the said infusion pipeline of second time detecting
t, wherein, said second time is the random time after said infusion pump starts; And
103, calculate said real-time pressure value P
tWith said original pressure value P
0Difference, when said difference during more than or equal to predefined pressure alarm threshold value M, output alarm signal.
2. infusion pump blockage pressure detecting method according to claim 1 is characterized in that step 102 comprises:
When said infusion pump started, pressure transducer detected the original pressure value P of said infusion pipeline
0And pass to CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218572.8A CN102735392B (en) | 2012-06-28 | 2012-06-28 | Method for detecting obstruction pressure of infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218572.8A CN102735392B (en) | 2012-06-28 | 2012-06-28 | Method for detecting obstruction pressure of infusion pump |
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| Publication Number | Publication Date |
|---|---|
| CN102735392A true CN102735392A (en) | 2012-10-17 |
| CN102735392B CN102735392B (en) | 2014-12-24 |
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|---|---|---|---|
| CN201210218572.8A Expired - Fee Related CN102735392B (en) | 2012-06-28 | 2012-06-28 | Method for detecting obstruction pressure of infusion pump |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301534A (en) * | 2013-07-03 | 2013-09-18 | 李耀强 | Infusion reminder for infusion bag |
| CN103301529A (en) * | 2013-07-03 | 2013-09-18 | 李耀强 | Infusion bottle infusion reminder with isolator |
| CN103316396A (en) * | 2013-07-03 | 2013-09-25 | 李耀强 | Infusion reminder of infusion bottle |
| CN104225716A (en) * | 2013-06-08 | 2014-12-24 | 湖南理工学院 | High-precision measuring and relevant control method for internal pressure of medical infusion tube |
| CN104474608A (en) * | 2013-07-03 | 2015-04-01 | 李耀强 | Reminder hung on infusion bottle for use |
| CN104606737A (en) * | 2015-01-23 | 2015-05-13 | 深圳市科曼医疗设备有限公司 | Infusion pump and infusion pump blockage detecting method |
| CN104815368A (en) * | 2015-05-14 | 2015-08-05 | 深圳市科曼医疗设备有限公司 | Infusion apparatus blocking identification method and device |
| CN105396200A (en) * | 2015-12-08 | 2016-03-16 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump as well as alarming method and device for blockage on infusion pipeline of infusion pump |
| CN105709301A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Infusion reminder |
| WO2016138792A1 (en) * | 2015-03-02 | 2016-09-09 | 深圳市科曼医疗设备有限公司 | Nasal high-flow oxygen therapy pressure-monitoring system and monitoring method thereof |
| CN106421975A (en) * | 2016-07-27 | 2017-02-22 | 珠海市美瑞华医用科技有限公司 | Children medical pump system and device |
| CN106730128A (en) * | 2016-12-01 | 2017-05-31 | 南通安诺医疗科技有限公司 | Safe medicine injecting pump with displacement and pressure detection |
| CN108106794A (en) * | 2018-03-05 | 2018-06-01 | 湖南比扬医疗科技有限公司 | A kind of detection of infusion pump pipe breakage and alarm method and device |
| CN109563758A (en) * | 2016-08-17 | 2019-04-02 | 罗伯特·博世有限公司 | For carrying out knowledge method for distinguishing to the pressure piping being blocked |
| US10345175B2 (en) | 2011-05-31 | 2019-07-09 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| CN110215565A (en) * | 2019-06-20 | 2019-09-10 | 河南驼人医疗器械集团有限公司 | A kind of blocking alarm system and electronic transfusion pump |
| CN111494781A (en) * | 2020-04-13 | 2020-08-07 | 北京东方逸腾数码医疗设备技术有限公司 | Pressure analysis recording system applied to balloon dilator |
| CN111588944A (en) * | 2020-05-29 | 2020-08-28 | 苏州麦德迅医疗科技有限公司 | Infusion pump blockage detection and warning method |
| US10864312B2 (en) | 2005-11-09 | 2020-12-15 | B. Braun Medical Inc. | Diaphragm pressure pod for medical fluids |
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|---|---|---|---|---|
| US10864312B2 (en) | 2005-11-09 | 2020-12-15 | B. Braun Medical Inc. | Diaphragm pressure pod for medical fluids |
| US11529448B2 (en) | 2011-05-31 | 2022-12-20 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| US10345175B2 (en) | 2011-05-31 | 2019-07-09 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| CN104225716A (en) * | 2013-06-08 | 2014-12-24 | 湖南理工学院 | High-precision measuring and relevant control method for internal pressure of medical infusion tube |
| CN105709300A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Transfusion reminder provided with clamping ring |
| CN105854123A (en) * | 2013-07-03 | 2016-08-17 | 中山市梵凯科技服务有限公司 | Infusion reminder with alarming function |
| CN105709300B (en) * | 2013-07-03 | 2018-10-16 | 长乐市丽智产品设计有限公司 | The alarm for infusion of band clasp |
| CN103301529B (en) * | 2013-07-03 | 2015-11-25 | 李耀强 | With the infusion bottle infusion reminder of isolator |
| CN103301534A (en) * | 2013-07-03 | 2013-09-18 | 李耀强 | Infusion reminder for infusion bag |
| CN105709301A (en) * | 2013-07-03 | 2016-06-29 | 中山市梵凯科技服务有限公司 | Infusion reminder |
| CN105854123B (en) * | 2013-07-03 | 2018-11-06 | 长乐市丽智产品设计有限公司 | Alarm for infusion with warning function |
| CN103301529A (en) * | 2013-07-03 | 2013-09-18 | 李耀强 | Infusion bottle infusion reminder with isolator |
| CN105709301B (en) * | 2013-07-03 | 2018-09-11 | 长乐市丽智产品设计有限公司 | Alarm for infusion |
| CN104474608B (en) * | 2013-07-03 | 2017-10-13 | 中山市丰申电器有限公司 | It is a kind of to hang over the reminiscences used on infusion bottle |
| CN104474608A (en) * | 2013-07-03 | 2015-04-01 | 李耀强 | Reminder hung on infusion bottle for use |
| CN103316396A (en) * | 2013-07-03 | 2013-09-25 | 李耀强 | Infusion reminder of infusion bottle |
| CN104606737A (en) * | 2015-01-23 | 2015-05-13 | 深圳市科曼医疗设备有限公司 | Infusion pump and infusion pump blockage detecting method |
| WO2016138792A1 (en) * | 2015-03-02 | 2016-09-09 | 深圳市科曼医疗设备有限公司 | Nasal high-flow oxygen therapy pressure-monitoring system and monitoring method thereof |
| WO2016180011A1 (en) * | 2015-05-14 | 2016-11-17 | 深圳市科曼医疗设备有限公司 | Identification method and device for blocking of infusion apparatus |
| CN104815368B (en) * | 2015-05-14 | 2018-04-06 | 深圳市科曼医疗设备有限公司 | The recognition methods and device that transfusion device blocks |
| CN104815368A (en) * | 2015-05-14 | 2015-08-05 | 深圳市科曼医疗设备有限公司 | Infusion apparatus blocking identification method and device |
| CN105396200A (en) * | 2015-12-08 | 2016-03-16 | 深圳市深科医疗器械技术开发有限公司 | Infusion pump as well as alarming method and device for blockage on infusion pipeline of infusion pump |
| CN105396200B (en) * | 2015-12-08 | 2021-11-05 | 深圳迈瑞科技有限公司 | Infusion pump and method and device for alarming blockage on infusion pipeline of infusion pump |
| CN114042204A (en) * | 2015-12-08 | 2022-02-15 | 深圳迈瑞科技有限公司 | Infusion pump and method and device for alarming blockage on infusion pipeline of infusion pump |
| CN106421975A (en) * | 2016-07-27 | 2017-02-22 | 珠海市美瑞华医用科技有限公司 | Children medical pump system and device |
| CN109563758A (en) * | 2016-08-17 | 2019-04-02 | 罗伯特·博世有限公司 | For carrying out knowledge method for distinguishing to the pressure piping being blocked |
| US10900401B2 (en) | 2016-08-17 | 2021-01-26 | Robert Bosch Gmbh | Method for detecting a blocked pressure line |
| CN106730128B (en) * | 2016-12-01 | 2020-02-28 | 南通安诺医疗科技有限公司 | Safe medicine injection pump with displacement pressure detection function |
| CN106730128A (en) * | 2016-12-01 | 2017-05-31 | 南通安诺医疗科技有限公司 | Safe medicine injecting pump with displacement and pressure detection |
| CN108106794A (en) * | 2018-03-05 | 2018-06-01 | 湖南比扬医疗科技有限公司 | A kind of detection of infusion pump pipe breakage and alarm method and device |
| CN110215565A (en) * | 2019-06-20 | 2019-09-10 | 河南驼人医疗器械集团有限公司 | A kind of blocking alarm system and electronic transfusion pump |
| CN111494781A (en) * | 2020-04-13 | 2020-08-07 | 北京东方逸腾数码医疗设备技术有限公司 | Pressure analysis recording system applied to balloon dilator |
| CN111588944A (en) * | 2020-05-29 | 2020-08-28 | 苏州麦德迅医疗科技有限公司 | Infusion pump blockage detection and warning method |
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