CN114441094A - Infusion pump calibration method and device and infusion pump - Google Patents
Infusion pump calibration method and device and infusion pump Download PDFInfo
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- CN114441094A CN114441094A CN202210104968.3A CN202210104968A CN114441094A CN 114441094 A CN114441094 A CN 114441094A CN 202210104968 A CN202210104968 A CN 202210104968A CN 114441094 A CN114441094 A CN 114441094A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
Abstract
The embodiment of the application provides a calibration method and device for an infusion pump and the infusion pump, wherein the method comprises the following steps: in the boosting process of the infusion pump, the pressure in the infusion tube is detected by a pressure detector; respectively acquiring an in-tube pressure data set of the infusion tube and an AD value data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds; denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected in-pipe pressure data and a corrected AD value; a fitting relationship between the pressure value of the infusion pump and the AD value of the pressure sensor is determined from the plurality of corrected pressure data and the plurality of corrected AD values. According to the provided calibration scheme of the infusion pump, the pressure detection instrument is communicated with the infusion pump, the pressure in the real-time tube is sent to the infusion pump, the calibration steps of the infusion pump are simplified, and the labor cost is reduced.
Description
Technical Field
The application relates to the technical field of equipment calibration, in particular to a calibration method and device for an infusion pump and the infusion pump.
Background
In order to enable the infusion pump to detect pressure more accurately in the prior art, the infusion pump needs to be calibrated so as to eliminate individual differences of the infusion pump caused by the structure, the circuit, the type of the infusion set and the like. Referring to fig. 1, a conventional pressure detecting apparatus 10 includes a pressure detecting tank 1 and an extruding block 2, and when an infusion tube 3 is loaded on an infusion pump, the extruding block 2 extrudes the infusion tube 3, so that a pressure sensor behind the pressure detecting tank is stressed, and the current pressure in the infusion tube 3 is obtained. In the prior art, a scheme of manual calibration is adopted, when an infusion pump is boosted, a pressure gauge is manually used for detecting real-time pressure in a current infusion tube 3, the collected pressure value is input into a machine through manual operation, the machine collects an AD value output by a corresponding pressure sensor, the machine calculates the relation between the pressure value and the AD value output by the pressure sensor, and the calculated relation is stored in an Electrically Erasable Programmable Read Only Memory (EEPROM) of the machine. The existing infusion pump pressure calibration scheme needs manual calibration, and is relatively complex to operate and high in labor cost.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the application provides a calibration method and device for an infusion pump and an infusion pump.
In a first aspect, an embodiment of the present application provides a calibration method for an infusion pump, which is applied to an infusion pump, the infusion pump is connected to a pressure detection instrument, the infusion pump includes an infusion tube, and the method includes:
in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detector;
respectively acquiring an in-tube pressure data set of the infusion tube and an AD (analog-to-digital) data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds;
denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and corrected AD values;
determining a fitted relationship between the pressure value of the infusion pump and the AD value of the pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values.
In a second aspect, an embodiment of the present application provides a calibrating device of transfer pump, the transfer pump is connected with the pressure detection instrument, the transfer pump includes the transfer line, the device includes:
the detection module is used for detecting the pressure in the infusion tube by the pressure detector in the boosting process of the infusion pump;
the acquisition module is used for respectively acquiring an in-tube pressure data set of the infusion tube and an AD value data set of the pressure sensor when the in-tube pressure of the infusion tube is respectively greater than or equal to a plurality of preset pressure threshold values;
the processing module is used for carrying out denoising pretreatment on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value;
and the determining module is used for determining a fitting relation between the pressure value of the infusion pump and the AD value of the pressure sensor according to the plurality of corrected pressure data and the plurality of corrected AD values.
In a third aspect, an embodiment of the present application provides an infusion pump, which includes a memory and a processor, where the memory is used for storing a computer program, and the computer program executes the calibration method of the infusion pump provided in the first aspect when the processor is running.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program which, when executed on a processor, performs the method for calibrating an infusion pump provided in the first aspect.
According to the calibration method of the infusion pump, in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detection instrument; respectively acquiring an in-tube pressure data set of the infusion tube and an AD (analog-to-digital) data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds; denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value; determining a fitting relationship between a pressure value of the infusion pump and an AD value of a pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values. Therefore, the pressure detection instrument is communicated with the infusion pump, the real-time pressure value is sent to the infusion pump, the infusion pump analyzes and processes the acquired pressure value and the AD value of the pressure sensor, and finally the fitting relation between the real-time pressure value and the AD value is obtained, the full-automatic pressure data acquisition and control functions are realized, the operation is simple, the needed human resources are reduced, the infusion pump calibration steps are simplified, and the labor cost is reduced.
Drawings
In order to more clearly explain the technical solutions of the present application, the drawings needed to be used in the embodiments are briefly introduced below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of protection of the present application. Like components are numbered similarly in the various figures.
FIG. 1 shows a schematic of a prior art infusion pump detection system;
fig. 2 is a schematic flow chart illustrating a calibration method for an infusion pump according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating a fitted straight line provided by an embodiment of the present application;
fig. 4 shows a schematic structural diagram of a calibration device of an infusion pump according to an embodiment of the present application.
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.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Example 1
In addition, the embodiment of the disclosure provides a calibration method of an infusion pump, which is applied to the infusion pump, the infusion pump is connected with a pressure detection instrument, and the infusion pump comprises an infusion tube.
Specifically, referring to fig. 2, the calibration method for the infusion pump provided in this embodiment includes the following steps:
step S201, in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detector.
In this embodiment, the pressure detector is an automatic calibration fixture with a correct pressure measurement value, and can automatically detect the pressure in the infusion tube of the infusion pump and transmit the pressure in the infusion tube to the infusion pump. In the boosting process of the infusion pump, the pressure detector automatically detects the pressure in the infusion tube and transmits the pressure in the infusion tube to the infusion pump. It should be noted that the infusion pump is loaded with a pressure sensor, and the AD value can be acquired by the infusion pump through the pressure sensor.
And step S202, when the pressure in the infusion tube is respectively greater than or equal to a plurality of preset pressure thresholds, respectively acquiring an in-tube pressure data set of the infusion tube and an AD value data set of a pressure sensor.
In this embodiment, the pressure detecting instrument continuously sends the real-time monitored in-tube pressure to the infusion pump, the infusion pump receives the in-tube pressure from the pressure detecting instrument, and determines whether the in-tube pressure reaches a calibration point, which may also be referred to as the preset pressure threshold, for example, the calibration point may be set to 30, 50, 70, or 90kpa, and if the calibration point reaches 30kpa, the pressure detecting instrument acquires 100 in-tube pressures and the pressure sensor acquires 100 AD values, performs filtering preprocessing on the 100 in-tube pressures to obtain the in-tube pressure after denoising preprocessing, and performs filtering preprocessing on the 100 AD values to obtain the AD values after denoising preprocessing.
Along with the increase of the pressure in the pipe, when the calibration point reaches 50kpa, the pressure detection instrument collects 100 pressure in the pipe in real time and the pressure sensor collects 100 AD values, then the 100 pressure in the pipe collected in real time is subjected to filtering pretreatment to obtain the pressure in the pipe subjected to denoising pretreatment, and the 100 AD values are subjected to filtering pretreatment to obtain the AD values subjected to denoising pretreatment. As the pressure in the pipe continuously increases, when the calibration point reaches 70kpa and 90kpa, the processing operation is performed when the calibration point reaches 50kpa, and details are not described herein to avoid repetition. Based on the in-pipe pressure after the denoising pretreatment and the AD value after the denoising pretreatment, the fitting relation between the pressure value of the infusion pump and the AD value of the pressure sensor can be determined.
In this embodiment, the preset pressure threshold may be determined according to a normal pressure range of the infusion tube. Specifically, the normal pressure range of the infusion tube can be uniformly divided into a first pressure sub-range, a second pressure sub-range and a third pressure sub-range, and one pressure value is selected from any one of the first pressure sub-range, the second pressure sub-range and the third pressure sub-range to serve as the preset pressure threshold. The first, second, and third pressure subranges may be referred to as a low pressure range, a medium pressure range, and a high pressure range, according to the pressure. Each in-line pressure dataset may include a plurality of in-line pressure values, for example, the in-line pressure dataset may include 100 in-line pressure values.
For example, a first predetermined pressure threshold is selected from the low pressure range, a second predetermined pressure threshold is selected from the medium pressure range, and a third predetermined pressure threshold is selected from the high pressure range. When the pressure in the pipe of the infusion pipe is respectively greater than or equal to a first preset pressure threshold value, the pressure data set A1 in the pipe of the infusion pipe is obtained, the pressure data set A1 in the pipe comprises 100 pressure values in the pipe, and the AD value data set A2 of the pressure sensor comprises 100 AD values. When the pressure in the tube of the infusion tube is respectively greater than or equal to a second preset pressure threshold value, a tube pressure data set B1 of the infusion tube and an AD value data set B2 of the pressure sensor are obtained, the tube pressure data set B1 comprises 100 tube pressure values, and the AD value data set B2 of the pressure sensor comprises 100 AD values. When the pressure in the tube of the infusion tube is respectively greater than or equal to a third preset pressure threshold value, a tube pressure data set C1 of the infusion tube and an AD value data set C2 of the pressure sensor are obtained, the tube pressure data set C1 comprises 100 tube pressure values, and the AD value data set C2 of the pressure sensor comprises 100 AD values. The Pressure Transducer (Pressure Transducer) can sense the Pressure signal and convert the Pressure signal into a usable output electric signal according to a certain rule, and the outputable electric signal can be called as an AD value.
In this embodiment, the obtaining of the preset pressure threshold includes:
dividing the pressure range of the infusion pump into a plurality of pressure sub-ranges;
and selecting any pressure value from each pressure sub-range as the preset pressure threshold value.
In this embodiment, the pressure range of the infusion pump can be uniformly divided into a plurality of pressure sub-ranges, for example, a low pressure range, a medium pressure range and a high pressure range, which cover more pressure ranges of the infusion pump. For example, the plurality of preset pressure thresholds may be 30Kpa, 50Kpa, 70Kpa, 90Kpa, respectively.
Step S203, carrying out denoising pretreatment on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and corrected AD values.
In this embodiment, each in-tube pressure data set includes a plurality of in-tube pressure values, and the AD value data set of the pressure sensor includes a plurality of AD values, and a corrected pressure value can be obtained by performing denoising preprocessing on the plurality of in-tube pressure values, and a corrected AD value can be obtained by performing denoising preprocessing on the plurality of AD values.
Specifically, step S203 may include the following steps:
respectively sequencing the plurality of in-pipe pressure values and the plurality of AD values according to the numerical values to obtain a corresponding in-pipe pressure value sequence and an AD value sequence;
respectively obtaining a plurality of target pressure values in the pipe in a preset sorting range in the pipe pressure value sorting and a plurality of target AD values in the preset sorting range in the AD value sorting;
and respectively determining the corrected pressure value and the corrected AD value according to the target pressure values in the pipe and the target AD values.
In this embodiment, the process of denoising pre-processing is essentially to filter the noise data of the pressure data set and the AD data set in the tube, and denoising pre-processing may also be referred to as filtering pre-processing. For example, each in-tube pressure data set includes 100 in-tube pressure values, the 100 in-tube pressure values are sorted according to the magnitude of the values to obtain in-tube pressure sequences, the first 10 values and the second 10 values of the in-tube pressure sequences are removed, and the average value of the middle 80 values of the in-tube pressure sequences is calculated to serve as a corrected pressure value. Each AD value data set comprises 100 AD values, the 100 AD values are sequenced according to the value size, an AD value sequence is respectively obtained, the first 10 values and the last 10 values of the AD value sequence are respectively removed, and the average value of the middle 80 values of the AD value sequence is calculated to serve as a correction AD value.
And step S204, determining a fitting relation between the pressure value of the infusion pump and the AD value of the pressure sensor according to the plurality of corrected pressure data and the plurality of corrected AD values.
In this embodiment, the fitting relationship between the pressure value of the infusion pump and the AD value of the sensor may be obtained by fitting a plurality of corrected pressure data and corrected AD values according to a least square method.
In this embodiment, step S204 includes:
determining a fitting relationship between the pressure value of the infusion pump and the AD value of the pressure sensor according to the following formula 1, formula 2 and formula 3;
equation 1: y is a × x + b;
equation 2:
equation 3:
wherein y represents the AD value of the pressure sensor, x represents the pressure value of the infusion pump, a represents the first fitting parameter, b represents the second fitting parameter, N represents the number of corrected pressure values, xiRepresents the i-th corrected pressure value, yiDenotes the ith corrected AD value, i ∈ [1, N]. The symbol Σ is a sum symbol.
Therefore, fitting operation can be performed according to the plurality of corrected pressure values and the plurality of corrected AD values to obtain a first fitting parameter and a second fitting parameter, and the fitting relation between the fitted pressure values and the AD values of the pressure sensors can be closer to the actual situation.
Referring to fig. 3, the fitting straight line shown in fig. 3 is obtained by fitting 4 corrected pressure values and 4 corrected AD values, where the abscissa in fig. 3 represents the real-time pressure value in Pkpa, and the ordinate in fig. 3 represents the real-time AD value in Pad. The straight line can be fitted using equation 4: and y is 3.0355 x-19.747. The fitness of the fit relationship may be represented by a correlation coefficient R2And (5) determining. The greater the goodness of fit, the greater the interpretation of the independent variable on the dependent variable, and the higher the percentage of the total variation that is accounted for by the variations caused by the independent variable. The denser the observation points are near the regression line. Coefficient of correlation R2The value range of (A): 0-1.
It should be noted that the pressure value collected in this embodiment, the AD value of the sensor, the calculated corrected pressure value, corrected AD value, and the like may be stored in the buffer area.
In this embodiment, after step S204, the calibration method for the infusion pump further includes the following steps:
detecting a reference AD value of the infusion tube by the pressure sensor when the infusion pump is started;
and determining an AD value alarm threshold value according to the fitting relation and the reference AD value.
In this embodiment, due to the structure of the infusion pump or the characteristics of the circuit itself, when the infusion pump is started, the infusion tube will have a certain pressure, and the AD value detected by the pressure sensor can be used as the reference AD value, which is influenced by the environment and the equipment. To be close to reality, the reference AD value may be substituted for the second fitting parameter in equation 1.
In this embodiment, the calibration method for the infusion pump further includes the following steps:
detecting a real-time AD value of the infusion pump through the pressure sensor;
and when the real-time AD value of the infusion tube is greater than or equal to the AD value alarm threshold value, generating pressure alarm information.
In this embodiment, the real-time AD value of the infusion tube is detected by the pressure sensor in real time, and is transmitted to the infusion pump, and when the real-time AD value of the infusion tube is greater than or equal to the AD value alarm threshold, pressure blockage is indicated, an alarm needs to be given, so that pressure alarm information needs to be generated, and the effect of reminding a user is achieved.
In this embodiment, the determining an AD value alarm threshold according to the fitting relationship and the reference AD value includes the following steps:
determining a calibration fitting relation according to the fitting relation and the reference AD value;
and determining the AD value alarm threshold value according to the preset pressure alarm threshold value and the calibration fitting relation.
In this embodiment, if c represents the reference AD value, the second fitting parameter b in formula 1 may be replaced with the reference AD value c in combination with formula 1, so as to obtain a calibration fitting relationship, where the calibration fitting relationship may be the following formula 5:
equation 5: y is a × x + c;
where y represents the AD value, x represents the pressure value, a represents the first fitting parameter, and c represents the reference AD value.
The preset pressure alarm threshold may be set by user-defined, for example, the preset pressure alarm threshold may be set to 70Kpa, and then the AD value alarm threshold may be determined according to equation 6;
equation 6: pmax 70 × a + c
Where Pmax represents the AD value alarm threshold, a represents the first fitting parameter, and c represents the reference AD value.
In the calibration method for the infusion pump provided by this embodiment, in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detection instrument; respectively acquiring an in-tube pressure data set of the infusion tube and an AD (analog-to-digital) data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds; denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value; determining a fitting relationship between a pressure value of the infusion pump and an AD value of a pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values. Therefore, the pressure detection instrument is communicated with the infusion pump, the real-time pressure value is sent to the infusion pump, the infusion pump analyzes and processes the acquired pressure value and the AD value of the pressure sensor, and finally the fitting relation between the real-time pressure value and the AD value is obtained, the full-automatic pressure data acquisition and control functions are realized, the operation is simple, the needed human resources are reduced, the infusion pump calibration steps are simplified, and the labor cost is reduced.
Example 2
The embodiment of the disclosure provides a calibrating device of an infusion pump, the calibrating device of the infusion pump is applied to the infusion pump, the infusion pump is connected with a pressure detection instrument, and the infusion pump comprises an infusion tube.
Specifically, referring to fig. 4, the calibration device 400 of the infusion pump includes:
the detection module 401 is configured to detect the pressure inside the infusion tube by the pressure detection instrument in the boosting process of the infusion pump;
an obtaining module 402, configured to obtain an intra-tube pressure data set of the infusion tube and an AD data set of a pressure sensor when the intra-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds, respectively;
the processing module 403 is configured to perform denoising preprocessing on each in-tube pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value;
a determining module 404, configured to determine a fitting relationship between the pressure value of the infusion pump and the AD value of the pressure sensor according to the plurality of corrected pressure data and the plurality of corrected AD values.
In this embodiment, the calibration apparatus 400 of the infusion pump further includes:
the dividing module is used for dividing the pressure range of the infusion pump into a plurality of pressure sub-ranges;
and selecting any pressure value from each pressure sub-range as the preset pressure threshold value.
In this embodiment, the determining module 404 is further configured to determine a fitting relationship between the pressure value of the infusion pump and the AD value of the pressure sensor according to the following formula 1, formula 2, and formula 3;
equation 1: y is a × x + b;
equation 2:
equation 3:
wherein y represents the AD value of the pressure sensor, x represents the pressure value of the infusion pump, a represents the first fitting parameter, b represents the second fitting parameter, N represents the number of corrected pressure values, xiIndicates the ith corrected pressure value, yiTo representThe ith corrected AD value.
In this embodiment, each of the in-tube pressure data sets includes a plurality of in-tube pressure values, each of the AD value data sets includes a plurality of AD values, and the processing module 403 is further configured to sort the plurality of in-tube pressure values and the plurality of AD values according to the numerical values, so as to obtain a corresponding in-tube pressure value sequence and an AD value sequence;
respectively obtaining a plurality of target pressure values in the pipe in a preset sorting range in the pipe pressure value sorting and a plurality of target AD values in the preset sorting range in the AD value sorting;
and respectively determining the corrected pressure value and the corrected AD value according to the target pressure values in the pipe and the target AD values.
In this embodiment, the calibration apparatus 400 of the infusion pump further includes:
the starting module is used for detecting a reference AD value of the infusion tube through the pressure sensor when the infusion pump is started;
and determining an AD value alarm threshold value according to the fitting relation and the reference AD value.
In this embodiment, the calibration apparatus 400 of the infusion pump further includes:
a generation module for detecting a real-time AD value of the infusion pump through the pressure sensor;
and when the real-time AD value of the infusion tube is greater than or equal to the AD value alarm threshold value, generating pressure alarm information.
In this embodiment, the starting module is further configured to determine a calibration fitting relationship according to the fitting relationship and the reference AD value;
and determining the AD value alarm threshold value according to the preset pressure alarm threshold value and the calibration fitting relation.
The calibration device for an infusion pump according to the embodiment of the present disclosure may be implemented by the calibration device for an infusion pump according to embodiment 1, so as to achieve the same technical effect, and in order to avoid repetition, the details are not repeated herein.
In the calibration device for the infusion pump provided by the embodiment, in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detection instrument; respectively acquiring an in-tube pressure data set of the infusion tube and an AD (analog-to-digital) data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds; denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value; determining a fitting relationship between a pressure value of the infusion pump and an AD value of a pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values. Therefore, the pressure detection instrument is communicated with the infusion pump, the real-time pressure value is sent to the infusion pump, the infusion pump analyzes and processes the acquired pressure value and the AD value of the pressure sensor, and finally the fitting relation between the real-time pressure value and the AD value is obtained, the full-automatic pressure data acquisition and control functions are realized, the operation is simple, the needed human resources are reduced, the infusion pump calibration steps are simplified, and the labor cost is reduced.
Example 3
Furthermore, an embodiment of the present disclosure provides an infusion pump, including a memory and a processor, where the memory stores a computer program, and the computer program, when running on the processor, executes the calibration method of the infusion pump provided by the above method embodiment.
The infusion pump provided in the embodiment of the present disclosure may implement the calibration device of the infusion pump provided in embodiment 1, so as to achieve the same technical effect, and in order to avoid repetition, the details are not described herein.
Example 4
Furthermore, embodiments of the present disclosure provide a computer-readable storage medium storing a computer program that, when run on a processor, performs the calibration method for an infusion pump provided in embodiment 1.
The computer-readable storage medium provided in the embodiment of the present disclosure may implement the calibration apparatus for an infusion pump provided in embodiment 1, so as to achieve the same technical effect, and in order to avoid repetition, details are not described herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing an electronic device to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A calibration method of an infusion pump is characterized by being applied to the infusion pump, the infusion pump is connected with a pressure detection instrument, the infusion pump comprises an infusion tube, and the method comprises the following steps:
in the boosting process of the infusion pump, the pressure in the infusion tube is detected by the pressure detector;
respectively acquiring an in-tube pressure data set of the infusion tube and an AD (analog-to-digital) data set of a pressure sensor when the in-tube pressure of the infusion tube is greater than or equal to a plurality of preset pressure thresholds;
denoising pretreatment is carried out on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value;
determining a fitting relationship between a pressure value of the infusion pump and an AD value of a pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values.
2. The method of claim 1, wherein the obtaining of the preset pressure threshold comprises:
dividing the pressure range of the infusion pump into a plurality of pressure sub-ranges;
and selecting any pressure value from each pressure sub-range as the preset pressure threshold value.
3. The method of claim 1, wherein determining a fitted relationship between a pressure value of the infusion pump and an AD value of a pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values comprises:
determining a fitting relationship between the pressure value of the infusion pump and the AD value of the pressure sensor according to the following formula 1, formula 2 and formula 3;
equation 1: y is a × x + b;
equation 2:
equation 3:
wherein y represents the AD value of the pressure sensor, x represents the pressure value of the infusion pump, a represents the first fitting parameter, b represents the second fitting parameter, N represents the number of corrected pressure values, xiRepresents the i-th corrected pressure value, yiIndicates the ith corrected AD value.
4. The method of claim 1, wherein each of the in-line pressure datasets includes a plurality of in-line pressure values, each of the AD value datasets includes a plurality of AD values, and the performing a de-noising pre-process on each of the in-line pressure datasets and each of the AD value datasets to obtain corresponding modified in-line pressure data and modified AD values comprises:
respectively sequencing the plurality of in-pipe pressure values and the plurality of AD values according to the numerical values to obtain a corresponding in-pipe pressure value sequence and an AD value sequence;
respectively obtaining a plurality of target pressure values in the pipe in a preset sorting range in the pipe pressure value sorting and a plurality of target AD values in the preset sorting range in the AD value sorting;
and respectively determining the corrected pressure value and the corrected AD value according to the target pressure values in the pipe and the target AD values.
5. The method of claim 1, wherein after determining the fitted relationship between the pressure value of the infusion pump and the AD value of the pressure sensor from the plurality of corrected pressure data and the plurality of corrected AD values, the method further comprises:
detecting a reference AD value of the infusion tube by the pressure sensor when the infusion pump is started;
and determining an AD value alarm threshold value according to the fitting relation and the reference AD value.
6. The method of claim 5, further comprising:
detecting a real-time AD value of the infusion pump through the pressure sensor;
and when the real-time AD value of the infusion tube is greater than or equal to the AD value alarm threshold value, generating pressure alarm information.
7. The method for calibrating an infusion pump according to claim 5, wherein said determining an AD value alarm threshold based on said fit relationship and said reference AD value comprises:
determining a calibration fitting relation according to the fitting relation and the reference AD value;
and determining the AD value alarm threshold value according to the preset pressure alarm threshold value and the calibration fitting relation.
8. The utility model provides a calibrating device of transfer pump which characterized in that is applied to the transfer pump, the transfer pump is connected with pressure detecting instrument, the transfer pump includes the transfer line, the device includes:
the detection module is used for detecting the pressure in the infusion tube by the pressure detector in the boosting process of the infusion pump;
the acquisition module is used for respectively acquiring an in-tube pressure data set of the infusion tube and an AD value data set of the pressure sensor when the in-tube pressure of the infusion tube is respectively greater than or equal to a plurality of preset pressure threshold values;
the processing module is used for carrying out denoising pretreatment on each in-pipe pressure data set and each AD value data set to obtain corresponding corrected pressure data and a corrected AD value;
and the determining module is used for determining a fitting relation between the pressure value of the infusion pump and the AD value of the pressure sensor according to the plurality of corrected pressure data and the plurality of corrected AD values.
9. An infusion pump comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, performs a method of calibrating an infusion pump according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when run on a processor, performs the method of calibrating an infusion pump according to any one of claims 1 to 7.
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