CN116870296B - Infusion control method, device, equipment and storage medium based on pump balance joint debugging - Google Patents

Infusion control method, device, equipment and storage medium based on pump balance joint debugging Download PDF

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Publication number
CN116870296B
CN116870296B CN202311148235.0A CN202311148235A CN116870296B CN 116870296 B CN116870296 B CN 116870296B CN 202311148235 A CN202311148235 A CN 202311148235A CN 116870296 B CN116870296 B CN 116870296B
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rotational speed
target
rotating speed
value
capacity
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CN116870296A (en
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燕金元
任高波
孙晨琳
唐文普
梁瑾
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Guangdong Biolight Meditech Co Ltd
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Guangdong Biolight Meditech Co Ltd
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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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • 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
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
    • 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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic

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  • Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention provides an infusion control method, device, equipment and storage medium based on pump balance joint debugging, wherein the method comprises the following steps: determining a first target rotating speed according to the target flow, and obtaining a first weighing value; after the first time period is run, when the deviation between the first pump driving capacity and the first weighing capacity is greater than or equal to a first capacity deviation threshold value, the rotating speed of the peristaltic pump is adjusted to be a second target rotating speed; and after the third time period is operated, when the second pump driving capacity and the second weighing capacity deviation value are smaller than or equal to a second capacity deviation threshold value, maintaining the operation of the peristaltic pump according to a third target rotating speed determined by the first target rotating speed, the third time period, the second target rotating speed and the second capacity deviation threshold value. According to the technical scheme provided by the embodiment of the invention, the actual flow can be represented through the weight change of the infusion pipeline, the rotating speed of the peristaltic pump is corrected by utilizing the deviation of the weighing capacity and the driving capacity of the pump, and the infusion accuracy of the CRRT equipment is improved.

Description

Infusion control method, device, equipment and storage medium based on pump balance joint debugging
Technical Field
The invention relates to the technical field of medical equipment, in particular to an infusion control method, device, equipment and storage medium based on pump balance joint debugging.
Background
The continuous kidney substitution therapy (Continuous Renal Replacement Therapy, CRRT) device can realize continuous infusion of liquid medicine through the rotation speed control of a peristaltic pump, and is a common continuous blood purification device. Because the CRRT equipment has higher requirements on accuracy, the rotating speed of the peristaltic pump can be calibrated before delivery, and the actual rotating speed is ensured to be consistent with the set rotating speed.
As the device is used continuously, a deviation may occur between the actual rotation speed and the set rotation speed. In order to reduce the deviation between the actual pump flow and the set pump flow, the related technology measures the actual rotation speed in the use process, adjusts the operation parameters of the peristaltic pump according to the deviation between the actual rotation speed and the set rotation speed, and realizes the calibration of the rotation speed. However, external forces such as liquid pressure and input pressure received by pump pipes with different sizes in the actual infusion process are different, and the external forces continuously change along with the infusion process, even if the rotation speed of the peristaltic pump is ensured to be accurate by adopting a related technology, the actual flow of the CRRT equipment can have a certain deviation from the set flow due to the change of the external force, and the infusion accuracy of the CRRT equipment is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an infusion control method, device, equipment and storage medium based on pump balance joint debugging, which can realize accurate adjustment of pump flow, improve the stability of pump flow and improve the infusion accuracy of CRRT equipment.
In a first aspect, an embodiment of the present invention provides an infusion control method based on pump balance joint adjustment, which is applied to a CRRT device, where the CRRT device includes a peristaltic pump and a weighing device, and the weighing device is used for weighing an infusion line of the CRRT device, and the infusion control method based on pump balance joint adjustment includes:
obtaining a target flow, determining a first target rotating speed according to the target flow, and obtaining a first weighing value of the weighing device, wherein the first target rotating speed is used for indicating a rotating speed value of the peristaltic pump in a rotating speed stable running state, and the first weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the first target rotating speed;
when the running time of the peristaltic pump reaches a preset first time according to the first target rotating speed, acquiring a second weighing value from the weighing device, determining a first pump driving capacity according to the first target rotating speed and the first time, and determining a first weighing capacity according to the first weighing value and the second weighing value;
determining a first capacity deviation value between the first pump driving capacity and the first weighing capacity, and adjusting the first target rotating speed to a second target rotating speed according to the first capacity deviation value and a preset second duration when the first capacity deviation value is larger than or equal to a preset first capacity deviation threshold;
Determining a second pump driving capacity according to the second target rotating speed, a third time length and the first pump driving capacity, determining a second weighing capacity according to the first weighing value and the third weighing value, and determining a second capacity deviation value according to the second pump driving capacity and the second weighing capacity, wherein the third time length is the time length of the peristaltic pump running according to the second target rotating speed, and the third weighing value is acquired from the weighing device after the third time length is run;
when the second capacity deviation value is smaller than or equal to a preset second capacity deviation threshold value, determining a third target rotating speed according to the first target rotating speed, the third duration, the second target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the third target rotating speed, wherein the second capacity deviation threshold value is larger than the first capacity deviation threshold value.
According to some embodiments of the invention, the determining the first target rotation speed according to the target flow includes:
acquiring the input pressure of the output end of the infusion pipeline;
acquiring a reference rotating speed from a preset pressure rotating speed meter according to the target flow and the input pressure, wherein the pressure rotating speed meter is used for indicating the mapping relation among the infusion flow, the input pressure and the rotating speed of the peristaltic pump;
And determining the first target rotating speed according to the reference rotating speed.
According to some embodiments of the invention, the determining the first target rotation speed according to the reference rotation speed includes:
controlling the peristaltic pump to operate according to the reference rotating speed;
acquiring a first feedback rotating speed of the peristaltic pump, and determining a first rotating speed deviation value according to the reference rotating speed and the first feedback rotating speed, wherein the first feedback rotating speed is used for indicating an actual rotating speed when the peristaltic pump is controlled to operate according to the reference rotating speed;
when the first rotational speed deviation value is smaller than or equal to a preset first rotational speed deviation threshold value, determining the reference rotational speed as the first target rotational speed;
or when the first rotational speed deviation value is greater than the first rotational speed deviation threshold value, the reference rotational speed is adjusted to the first target rotational speed, wherein the deviation value of the first target rotational speed and the first feedback rotational speed is smaller than or equal to the first rotational speed deviation threshold value.
According to some embodiments of the invention, the adjusting the reference rotational speed to the first target rotational speed when the first rotational speed deviation value is greater than the first rotational speed deviation threshold value includes:
When the first rotational speed deviation value is greater than or equal to a preset second rotational speed deviation threshold value, the reference rotational speed is adjusted in equal proportion according to the ratio of the reference rotational speed to the feedback rotational speed, and the adjusted reference rotational speed is determined to be the first target rotational speed, wherein the second rotational speed deviation threshold value is greater than the first rotational speed deviation threshold value;
or when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is larger than the feedback rotational speed, and the reference rotational speed is increased by a preset rotational speed adjustment unit to obtain the first target rotational speed, wherein the rotational speed adjustment unit is the minimum adjustable value of the rotational speed of the peristaltic pump, the third rotational speed deviation threshold is smaller than the second rotational speed deviation threshold, and the third rotational speed deviation threshold is larger than the first rotational speed deviation threshold;
or when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is smaller than the feedback rotational speed, and the reference rotational speed is reduced by one rotational speed adjustment unit to obtain the first target rotational speed;
Or, when the first rotational speed deviation value is less than or equal to the third rotational speed deviation threshold value, determining the reference rotational speed as the first target rotational speed.
According to some embodiments of the invention, after said maintaining operation of the peristaltic pump according to the third target rotational speed, the method further comprises:
acquiring a second feedback rotating speed of the peristaltic pump, and determining a second rotating speed deviation value according to the third target rotating speed and the second feedback rotating speed, wherein the second feedback rotating speed is used for indicating the actual rotating speed when the peristaltic pump is controlled to operate according to the third target rotating speed;
when the second rotational speed deviation value is smaller than or equal to the first rotational speed deviation threshold value, maintaining the peristaltic pump to operate according to the third target rotational speed;
or when the second rotation speed deviation value is greater than the first rotation speed deviation threshold value, the third target rotation speed is adjusted to be a fourth target rotation speed, wherein the deviation value of the fourth target rotation speed and the second feedback rotation speed is smaller than or equal to the first rotation speed deviation threshold value.
According to some embodiments of the invention, after said maintaining operation of the peristaltic pump according to the third target rotational speed, the method further comprises:
Acquiring a fourth weighing value of the weighing device, wherein the fourth weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the third target rotating speed;
when the peristaltic pump reaches the first time according to the time length of the third target rotating speed operation, a fifth weighing value is obtained from the weighing device, a third pump driving capacity is determined according to the third target rotating speed and the first time length, and a third weighing capacity is determined according to the fourth weighing value and the fifth weighing value;
determining a third capacity deviation value between the third pump driving capacity and the third weighing capacity, and adjusting the third target rotating speed to a fifth target rotating speed according to the third capacity deviation value and the second duration when the third capacity deviation value is greater than or equal to the first capacity deviation threshold;
determining a fourth pump driving capacity according to the fifth target rotating speed, the fourth time length and the third pump driving capacity, determining a fourth weighing capacity according to the fourth weighing value and a sixth weighing value, and determining a fourth capacity deviation value according to the fourth pump driving capacity and the fourth weighing capacity, wherein the fourth time length is a time length of the peristaltic pump running according to the fifth target rotating speed, and the sixth weighing value is obtained from the weighing device after running the fourth time length;
And when the fourth capacity deviation value is smaller than or equal to the second capacity deviation threshold value, determining a sixth target rotating speed according to the third target rotating speed, the fourth time length, the fifth target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the sixth target rotating speed.
According to some embodiments of the invention, the determining the third target rotational speed according to the first target rotational speed, the third time period, the second target rotational speed, and the second capacity deviation threshold value is performed by:
wherein->For the third target rotational speed, +.>For the first target rotational speed, +.>For the second target rotational speed, +.>For said third duration,/->Is the second capacity deviation threshold.
In a second aspect, an embodiment of the present invention provides an infusion control device based on pump balance joint debugging, including at least one control processor and a memory for communication connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the pump balance joint call based infusion control method as described in the first aspect above.
In a third aspect, an embodiment of the present invention provides a CRRT device, including an infusion control device based on pump balance joint adjustment as described in the second aspect above.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium storing computer executable instructions for performing the pump balance joint adjustment-based infusion control method according to the first aspect.
The infusion control method based on pump balance joint debugging has the following advantages: obtaining a target flow, determining a first target rotating speed according to the target flow, and obtaining a first weighing value of the weighing device, wherein the first target rotating speed is used for indicating a rotating speed value of the peristaltic pump in a rotating speed stable running state, and the first weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the first target rotating speed; when the running time of the peristaltic pump reaches a preset first time according to the first target rotating speed, acquiring a second weighing value from the weighing device, determining a first pump driving capacity according to the first target rotating speed and the first time, and determining a first weighing capacity according to the first weighing value and the second weighing value; determining a first capacity deviation value between the first pump driving capacity and the first weighing capacity, and adjusting the first target rotating speed to a second target rotating speed according to the first capacity deviation value and a preset second duration when the first capacity deviation value is larger than or equal to a preset first capacity deviation threshold; determining a second pump driving capacity according to the second target rotating speed, a third time length and the first pump driving capacity, determining a second weighing capacity according to the first weighing value and the third weighing value, and determining a second capacity deviation value according to the second pump driving capacity and the second weighing capacity, wherein the third time length is the time length of the peristaltic pump running according to the second target rotating speed, and the third weighing value is acquired from the weighing device after the third time length is run; when the second capacity deviation value is smaller than or equal to a preset second capacity deviation threshold value, determining a third target rotating speed according to the first target rotating speed, the third duration, the second target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the third target rotating speed, wherein the second capacity deviation threshold value is larger than the first capacity deviation threshold value. According to the technical scheme provided by the embodiment of the invention, after the CRRT equipment stably operates for a period of time, the actual infusion flow can be represented through the weight change of the infusion pipeline, and the deviation of the weighing capacity and the driving capacity of the pump is utilized to correct the rotating speed of the peristaltic pump, so that the actual infusion flow of the CRRT equipment is closer to the target flow, and the infusion accuracy of the CRRT equipment is improved.
Drawings
FIG. 1 is a flow chart of a pump balance joint adjustment based infusion control method provided in one embodiment of the present invention;
FIG. 2 is a flow chart of a look-up table for determining a reference rotational speed according to another embodiment of the present invention;
FIG. 3 is a flow chart of determining a first target rotational speed provided by another embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for adjusting a rotational speed to a first target rotational speed according to another embodiment of the present invention;
FIG. 5 is a flow chart of adjusting the rotational speed after pump balance joint adjustment according to another embodiment of the present invention;
FIG. 6 is a flow chart of a pump balance joint debugging method according to another embodiment of the present invention;
FIG. 7 is a flow chart of a specific example provided by the present invention;
fig. 8 is a block diagram of an infusion control device based on pump balance joint adjustment according to another embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The embodiment of the invention provides an infusion control method, device, equipment and storage medium based on pump balance joint debugging, wherein the infusion control method based on pump balance joint debugging comprises the following steps: obtaining a target flow, determining a first target rotating speed according to the target flow, and obtaining a first weighing value of the weighing device, wherein the first target rotating speed is used for indicating a rotating speed value of the peristaltic pump in a rotating speed stable running state, and the first weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the first target rotating speed; when the running time of the peristaltic pump reaches a preset first time according to the first target rotating speed, acquiring a second weighing value from the weighing device, determining a first pump driving capacity according to the first target rotating speed and the first time, and determining a first weighing capacity according to the first weighing value and the second weighing value; determining a first capacity deviation value between the first pump driving capacity and the first weighing capacity, and adjusting the first target rotating speed to a second target rotating speed according to the first capacity deviation value and a preset second duration when the first capacity deviation value is larger than or equal to a preset first capacity deviation threshold; determining a second pump driving capacity according to the second target rotating speed, a third time length and the first pump driving capacity, determining a second weighing capacity according to the first weighing value and the third weighing value, and determining a second capacity deviation value according to the second pump driving capacity and the second weighing capacity, wherein the third time length is the time length of the peristaltic pump running according to the second target rotating speed, and the third weighing value is acquired from the weighing device after the third time length is run; when the second capacity deviation value is smaller than or equal to a preset second capacity deviation threshold value, determining a third target rotating speed according to the first target rotating speed, the third duration, the second target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the third target rotating speed, wherein the second capacity deviation threshold value is larger than the first capacity deviation threshold value. According to the technical scheme provided by the embodiment of the invention, after the CRRT equipment stably operates for a period of time, the actual infusion flow can be represented through the weight change of the infusion pipeline, and the deviation of the weighing capacity and the driving capacity of the pump is utilized to correct the rotating speed of the peristaltic pump, so that the actual infusion flow of the CRRT equipment is closer to the target flow, and the infusion accuracy of the CRRT equipment is improved.
The control method according to the embodiment of the present invention is further described below based on the drawings.
Referring to fig. 1, fig. 1 is a flowchart of an infusion control method based on pump balance joint adjustment, where the pump balance joint adjustment-based infusion control method is applied to a CRRT device, the CRRT device includes a peristaltic pump and a weighing device, the weighing device is used for weighing an infusion pipeline of the CRRT device, and the pump balance joint adjustment-based infusion control method includes:
s11, obtaining a target flow, determining a first target rotating speed according to the target flow, and obtaining a first weighing value of a weighing device, wherein the first target rotating speed is used for indicating a rotating speed value of the peristaltic pump in a rotating speed stable running state, and the first weighing value is used for indicating the weight of an infusion pipeline at the starting moment of the peristaltic pump applying the first target rotating speed;
s12, when the running time of the peristaltic pump reaches a preset first time according to a first target rotating speed, acquiring a second weighing value from the weighing device, determining a first pump driving capacity according to the first target rotating speed and the first time, and determining a first weighing capacity according to the first weighing value and the second weighing value;
s13, determining a first capacity deviation value between the first pump driving capacity and the first weighing capacity, and adjusting the first target rotating speed to be a second target rotating speed according to the first capacity deviation value and a preset second duration when the first capacity deviation value is larger than or equal to a preset first capacity deviation threshold value;
S14, determining a second pump driving capacity according to a second target rotating speed, a third time length and the first pump driving capacity, determining a second weighing capacity according to the first weighing value and the third weighing value, and determining a second capacity deviation value according to the second pump driving capacity and the second weighing capacity, wherein the third time length is the time length of the peristaltic pump running according to the second target rotating speed, and the third weighing value is acquired from the weighing device after running for the third time length;
and S15, when the second capacity deviation value is smaller than or equal to a preset second capacity deviation threshold value, determining a third target rotating speed according to the first target rotating speed, the third duration, the second target rotating speed and the second capacity deviation threshold value, and maintaining the operation of the peristaltic pump according to the third target rotating speed, wherein the second capacity deviation threshold value is larger than the first capacity deviation threshold value.
It should be noted that, the first target rotational speed is a rotational speed at which the peristaltic pump can stably operate, and after the target flow is input, although an initial rotational speed can be determined, the infusion flow of the peristaltic pump has a certain deviation from the target flow at the initial rotational speed, so that a certain rotational speed adjustment may be performed on the initial rotational speed, so that the infusion flow of the peristaltic pump meets the target flow, and the rotational speed at this time is the first target rotational speed.
It should be noted that, it is well known to those skilled in the art how to provide a weighing device in the CRRT device, so as to weigh an infusion line to obtain weighing values at different moments, and during operation, the infusion line is filled with infusion liquid, so that each weighing value in this embodiment is substantially the sum of the weight of the infusion line and the weight of the infusion liquid remaining in the line, and the weight of the infusion line is constant, and therefore, the weighing capacity obtained according to the weighing values at two different moments in this embodiment can represent the weight difference of the infusion liquid, and thus the actual infusion flow of the infusion liquid.
It should be noted that, in this embodiment, the first weighing value is obtained at the starting moment of applying the first target rotation speed, as the starting weight of the pump balance joint adjustment, when the first time period is operated, the second weighing value is obtained, the difference obtained by subtracting the second weighing value from the first weighing value is the first weighing capacity, according to the above description, the first weighing capacity is the weight of the infusion liquid actually infused in the first time period, and then the first pump driving capacity is calculated according to the first target rotation speed and the first time period, since the peristaltic pump will be affected by external force such as the infusion liquid pressure in the actual operation process, some of the output power of the peristaltic pump is used for external force loss, the actual infusion capacity will be smaller than the theoretical driving capacity of the peristaltic pump, that is, the first pump driving capacity will be generally greater than the first weighing capacity, the first capacity deviation value of this embodiment can be the difference obtained by subtracting the first weighing capacity from the first pump driving capacity, and when the first capacity deviation value is greater than or equal to the first capacity deviation threshold, the first capacity deviation threshold is used as the triggering condition of the pump joint adjustment, then the peristaltic pump is required to be adjusted to meet the target flow rate demand by adjusting the peristaltic pump, and the flow rate is required to be increased by adjusting the peristaltic pump, so as to realize the flow rate demand. Further, in order to improve the continuity and stability of the CRRT, the first time period may be set to a shorter time period, for example, set to 2 minutes or 1 minute, so that the CRRT device may perform pump balance joint adjustment in a shorter period, so as to avoid that the long-time flow deviation affects the treatment effect, and the specific time may be set according to the actual requirement, which is not limited herein.
It should be noted that, when the first capacity deviation threshold takes m (m is a natural number) as an example and when the capacity deviation is accumulated to m, the pump balance joint adjustment of the embodiment is triggered, and the new rotation speed is calculated to compensate the flow of m in a certain time, the embodiment may preset a second time period according to an empirical value, that is, on the basis of the current first target rotation speed, the rotation speed needs to be increased to compensate the deviation value m in the second time period, so the expression of the second target rotation speed of the embodiment may beWherein->For the first target rotational speed, +.>For the second target rotational speed, +.>For a second period of time>Is a first capacity deviation threshold. It should be noted that, because the external force of the infusion line is in a continuously changing state, the deviation m may not be able to be recovered after the second time period is operated according to the second target rotation speed, and therefore, the embodiment does not limit the second target rotation speed to the second time period, where the second time period is only used for calculating the second target rotation speed.
After the second target rotational speed is applied, the displacement deviation between the pump drive capacity and the weighing capacity can be periodically determined in accordance with the above mannerTo determine whether the flow deviation has completed compensation. In this embodiment, after the third time period is run, a third weighing value is obtained, a second weighing capacity is calculated by combining the first weighing value, a second pump driving capacity is calculated according to a second target rotation speed, the third time period and the first pump driving capacity, a second capacity deviation value is obtained by calculating a difference value between the second pump driving capacity and the second weighing capacity, the flow deviation after flow compensation is represented by the second capacity deviation value, when the second capacity deviation value is smaller than or equal to a second capacity deviation threshold value, the completion of flow compensation is determined, and the operation of the peristaltic pump is maintained after the third target rotation speed is calculated. In the present embodiment, the second time period is not necessarily required to satisfy the compensation of the deviation m based on the external force factor, so the present embodiment uses the second capacity deviation threshold value As a basis for compensation judgment and satisfies +.>>/>That is, the flow compensation is allowed to have a certain error, and the specific value of the second capacity deviation threshold value can be adjusted according to the actual requirement of the error.
It should be noted that, after the flow compensation is completed, if the peristaltic pump continues to operate at the second target rotational speed, the infusion flow of the peristaltic pump exceeds the requirement of the target flow, so that the maintenance flow of the peristaltic pump, that is, the third target rotational speed in the embodiment, needs to be determined again, so that the peristaltic pump can meet the infusion requirement of the target flow in the subsequent infusion process.
In one embodiment, the third target rotational speed may be calculated by the following formula:wherein->For the third target rotational speed, +.>For a third period of time>Is a second capacity deviation threshold.
It should be noted that, through the above expression, the third target rotation speed increases the compensation rotation speed based on the first target rotation speed, reduces the increasing speed of the capacity deviation in the subsequent operation process, and improves the infusion accuracy of the CRRT device.
According to the technical scheme, after the CRRT equipment stably operates for a period of time, the first pump driving capacity is calculated according to the rotating speed of the peristaltic pump to serve as the representation of the control flow, the first weighing capacity obtained through twice weighing serves as the representation of the actual flow, the flow deviation is determined according to the calculated first capacity deviation value, after the flow deviation is accumulated to the first capacity deviation threshold value, the flow compensation is performed by increasing the rotating speed to the second target rotating speed, the completion of the flow compensation is determined after the deviation between the control flow and the weighing flow is up to the second capacity deviation threshold value, the third target rotating speed is calculated again to maintain the operation of the peristaltic pump, the flow compensation can be achieved, the rotating speed can be adjusted after the flow compensation, the deviation accumulation speed in the subsequent infusion process is reduced, and the infusion accuracy of the CRRT equipment is improved.
In addition, referring to fig. 2, step S11 shown in fig. 1 further includes, but is not limited to, the following steps:
s21, acquiring the input pressure of the output end of the infusion pipeline;
s22, acquiring a reference rotating speed from a preset pressure rotating speed meter according to the target flow and the input pressure, wherein the pressure rotating speed meter is used for indicating the mapping relation among the infusion flow, the input pressure and the rotating speed of the peristaltic pump;
s23, determining a first target rotating speed according to the reference rotating speed.
It should be noted that, when the CRRT device is started to be used, an operator may input a target flow into the CRRT device, after the target flow is obtained, the output end of the peristaltic pump is usually located at an artery of a patient, and during the operation of the peristaltic pump, the flow of each revolution of the peristaltic pump is changed due to the effect of the pressure before the peristaltic pump, based on this, the embodiment obtains the input pressure after the target flow is obtained, and uses the input pressure as a consideration factor of the rotational speed of the peristaltic pump to implement pump rotational speed compensation.
It should be noted that, because the mapping relationship among the input pressure, the infusion flow and the rotation speed is known in advance, the embodiment forms the pressure rotation speed meter according to the mapping relationship among the three, and after the input pressure is obtained, the reference rotation speed is determined by a table look-up mode, so that the efficiency and the accuracy of rotation speed determination are improved.
It should be noted that, after the reference rotation speed is obtained, the rotation speed may be adjusted based on the reference rotation speed to obtain the first target rotation speed, so as to further improve the accuracy of infusion.
In addition, referring to fig. 3, in an embodiment, step S23 shown in fig. 2 further includes, but is not limited to, the following steps:
s31, controlling the peristaltic pump to operate according to the reference rotating speed;
s32, acquiring a first feedback rotating speed of the peristaltic pump, and determining a first rotating speed deviation value according to the reference rotating speed and the first feedback rotating speed, wherein the first feedback rotating speed is used for indicating the actual rotating speed when the peristaltic pump is controlled to operate according to the reference rotating speed;
s33, when the first rotation speed deviation value is smaller than or equal to a preset first rotation speed deviation threshold value, determining the reference rotation speed as a first target rotation speed;
and S34, when the first rotation speed deviation value is larger than a first rotation speed deviation threshold value, adjusting the reference rotation speed to be a first target rotation speed, wherein the deviation value of the first target rotation speed and the first feedback rotation speed is smaller than or equal to the first rotation speed deviation threshold value.
After the reference rotation speed is determined, PID adjustment can be performed in combination with the actual rotation speed, so that the control rotation speed of the peristaltic pump can be kept consistent with the actual rotation speed. In order to realize the rotation speed adjustment, in this embodiment, the first feedback rotation speed is obtained during the operation according to the reference rotation speed, where the first feedback rotation speed is the actual rotation speed of the peristaltic pump, and those skilled in the art are familiar with how to collect relevant parameters, which will not be repeated herein.
After the first feedback rotation speed is obtained, a first rotation speed deviation value is obtained through a difference value between the reference rotation speed and the first feedback rotation speed, and whether rotation speed adjustment is needed or not is determined according to the first rotation speed deviation value and the first rotation speed deviation threshold value.
Illustratively, the rotational speed is referenced toFor example, the first feedback speed is +.>For example, the first rotational speed deviation threshold value is +.>For example, the present embodiment uses the absolute value as the deviation value to avoid the influence of the negative number on the size judgment, and the first rotational speed deviation value is |-/>I, when I>-/>|≤/>The speed deviation is within the allowable error, the reference speed +.>Is determined as the first target rotational speed +.>The method comprises the steps of carrying out a first treatment on the surface of the When +|>-/>|>/>If the rotational speed deviation exceeds the allowable error range, rotational speed compensation is required for the reference rotational speed so that the first target rotational speed +.>Satisfy | ->-/>|≤/>。
In addition, referring to fig. 4, step S34 shown in fig. 3 further includes, but is not limited to, the following steps:
s41, when the first rotational speed deviation value is larger than or equal to a preset second rotational speed deviation threshold value, adjusting the reference rotational speed according to the equal proportion of the ratio of the reference rotational speed to the feedback rotational speed, and determining the adjusted reference rotational speed as a first target rotational speed, wherein the second rotational speed deviation threshold value is larger than the first rotational speed deviation threshold value;
S42, when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is larger than the feedback rotational speed, a preset rotational speed adjustment unit is added to the reference rotational speed to obtain a first target rotational speed, wherein the rotational speed adjustment unit is the minimum adjustable value of the rotational speed of the peristaltic pump, the third rotational speed deviation threshold is smaller than the second rotational speed deviation threshold, and the third rotational speed deviation threshold is larger than the first rotational speed deviation threshold;
s43, when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is smaller than the feedback rotational speed, and the reference rotational speed is reduced by one rotational speed adjustment unit to obtain a first target rotational speed;
and S44, when the first rotating speed deviation value is smaller than or equal to the third rotating speed deviation threshold value, determining the reference rotating speed as the first target rotating speed.
It should be noted that, according to the description of the above embodiment, there is a certain deviation between the reference rotational speed and the first feedback rotational speed, and the reference rotational speed may be greater than the first feedback rotational speed or less than the first feedback rotational speed, and the first rotational speed deviation value may be greater or less, so that in order to improve the accuracy of rotational speed compensation, in this embodiment, the second rotational speed deviation threshold value and the third rotational speed deviation threshold value are used to perform judgment adjustment. The following will be described by four specific examples in which the second rotational speed deviation threshold value is set to For example, the third rotational speed deviation threshold value is +.>For example, and satisfy->。
Exemplary, when |-/>|≥/>The deviation between the reference rotation speed and the first feedback rotation speed can be determined to be larger, and the larger-amplitude numerical adjustment can be performed in an equal proportion mode, so that the first target rotation speed can be close to the actual rotation speed, and the calculation can be performed through the following formula: />。
Illustratively, when|/>-/>|≥/>And->>/>The actual flow is smaller than the flow required by control, so that the control rotation speed needs to be increased to ensure that the flow meets the requirement, and the deviation between the reference flow and the first feedback flow is smaller at the moment, so that small-amplitude adjustment can be performed by adding a rotation speed adjustment unit, and the accuracy is prevented from being influenced by overlarge adjustment amplitude, namely +_>。
Illustratively, when|/>-/>|≥/>And->The actual flow is larger than the flow required by control, so that the control rotation speed needs to be reduced to avoid the output of the infusion solution to be too fast, and the deviation between the reference flow and the first feedback flow is smaller at the moment, so that small-amplitude adjustment can be performed by reducing one rotation speed adjustment unit to avoid the influence of the overlarge adjustment amplitude on the accuracy, namely->。
IllustrativelyWhen (when)|/>-/>In this case, the deviation between the reference flow rate and the first feedback flow rate is small, and even if one rotation speed adjustment unit is adjusted, the rotation speed deviation is large, so that the reference rotation speed may be directly determined as the first target rotation speed without adjustment.
In addition, in an embodiment, referring to fig. 5, after step S15 shown in fig. 1 is performed, the following steps are included, but not limited to:
s51, obtaining a second feedback rotating speed of the peristaltic pump, and determining a second rotating speed deviation value according to a third target rotating speed and the second feedback rotating speed, wherein the second feedback rotating speed is used for indicating the actual rotating speed when the peristaltic pump is controlled to operate according to the third target rotating speed;
s52, when the second rotating speed deviation value is smaller than or equal to the first rotating speed deviation threshold value, maintaining the peristaltic pump to operate according to the third target rotating speed;
and S53, when the second rotating speed deviation value is larger than the first rotating speed deviation threshold value, the third target rotating speed is adjusted to be a fourth target rotating speed, wherein the deviation value of the fourth target rotating speed and the second feedback rotating speed is smaller than or equal to the first rotating speed deviation threshold value.
It should be noted that, after the pump balance joint adjustment of the present embodiment is completed, in the running process according to the third target rotation speed, the second feedback rotation speed is obtained, and the rotation speed correction is performed according to the second rotation speed deviation between the second feedback rotation speed and the third target rotation speed, where the specific principle may refer to the description of the embodiment shown in fig. 3, the third target rotation speed is used as the control rotation speed, the second feedback rotation speed is used as the actual rotation speed, and the finally adjusted rotation speed is used as the fourth target rotation speed, where the specific correction principle is not repeated herein.
According to the technical scheme of the embodiment, after the compensation flow difference is realized through pump balance joint debugging, the third target rotating speed is calculated according to the flow compensation parameter, and after the third target rotating speed is applied, the fourth target rotating speed is determined according to the third target rotating speed according to the PID regulating principle of the actual rotating speed and the control rotating speed of the embodiment shown in fig. 3, so that the control value and the feedback value can be kept consistent after the pump balance joint debugging.
In addition, in an embodiment, referring to fig. 6, after step S15 shown in fig. 1 is performed, the following steps are included, but not limited to:
s61, obtaining a fourth weighing value of the weighing device, wherein the fourth weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the third target rotating speed;
s62, when the running time of the peristaltic pump reaches the first time according to the third target rotating speed, obtaining a fifth weighing value from the weighing device, determining a third pump driving capacity according to the third target rotating speed and the first time, and determining a third weighing capacity according to the fourth weighing value and the fifth weighing value;
s63, determining a third capacity deviation value between the third pump driving capacity and the third weighing capacity, and adjusting the third target rotating speed to be a fifth target rotating speed according to the third capacity deviation value and the second duration when the third capacity deviation value is greater than or equal to the first capacity deviation threshold;
S64, determining a fourth pump driving capacity according to a fifth target rotating speed, a fourth time length and a third pump driving capacity, determining a fourth weighing capacity according to a fourth weighing value and a sixth weighing value, and determining a fourth capacity deviation value according to the fourth pump driving capacity and the fourth weighing capacity, wherein the fourth time length is the time length of the peristaltic pump running according to the fifth target rotating speed, and the sixth weighing value is obtained from the weighing device after running for the fourth time length;
and S65, when the fourth capacity deviation value is smaller than or equal to the second capacity deviation threshold value, determining a sixth target rotating speed according to the third target rotating speed, the fourth time length, the fifth target rotating speed and the second capacity deviation threshold value, and maintaining the operation of the peristaltic pump according to the sixth target rotating speed.
It should be noted that, because the external force of the CRRT device continuously changes, the flow deviation still continuously occurs, based on this, in this embodiment, after the pump balance joint adjustment is completed once according to the technical solution of the embodiment shown in fig. 1, the flow deviation is continuously monitored, and when the flow deviation is detected to be greater than or equal to the first capacity deviation threshold again, the pump balance joint adjustment is executed once again, so as to reduce the flow oscillation in the whole infusion process.
It should be noted that the principles of steps S61 to S65 in the present embodiment may refer to the principles shown in fig. 1, and the difference is that the parameters are collected in different periods, that is, the fourth weighing value in the present embodiment may refer to the first weighing value shown in fig. 1, the fifth weighing value refers to the second weighing value shown in fig. 1, the third target rotating speed refers to the first target rotating speed shown in fig. 1, and so on, and the specific principles are not repeated herein.
In order to better illustrate the technical solution of the present invention, a complete example is presented below in conjunction with fig. 7, and referring to fig. 7, the present example includes, but is not limited to, the following steps:
s71, setting a target flow;
s72, acquiring input pressure, and searching a reference rotating speed in a pressure rotating speed meter according to the target flow and the input pressure;
s73, taking the reference rotation speed as a control rotation speed, controlling the peristaltic pump to operate according to the control rotation speed, obtaining a feedback rotation speed, calculating the rotation speed deviation between the control rotation speed and the feedback rotation speed, executing step S75 when the rotation speed deviation is smaller than a first rotation speed deviation threshold value, otherwise, executing step S74
S74, determining a new control rotating speed according to the rotating speed deviation, the second rotating speed deviation threshold value and the third rotating speed deviation threshold value, and repeatedly executing the step S73;
s75, acquiring a first weighing value, acquiring a second weighing value after the first time is operated according to the control rotating speed, determining the pump driving capacity according to the control rotating speed and the first time, determining the weighing capacity according to the second weighing value and the first weighing value, determining the capacity deviation according to the pump driving capacity and the weighing capacity, executing the step S76 when the capacity deviation is larger than a first capacity deviation threshold, otherwise, executing the step S78;
S76, carrying out rotation speed compensation on the control rotation speed according to the capacity deviation, executing the step S77 when the capacity deviation is smaller than or equal to a second capacity deviation threshold value after the third time period is operated, otherwise, repeatedly executing the step S76;
s77, calculating a maintenance rotating speed, and executing a step S74;
and S78, maintaining the current control rotation speed to continue operation.
As shown in fig. 8, fig. 8 is a block diagram of an infusion control device based on pump balance joint adjustment according to an embodiment of the present application. The application also provides an infusion control device based on pump scale joint debugging, which comprises:
the processor 801 may be implemented by a general purpose central processing unit (Central Processing Unit, CPU), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solution provided by the embodiments of the present application;
the Memory 802 may be implemented in the form of a Read Only Memory (ROM), a static storage device, a dynamic storage device, or a random access Memory (Random Access Memory, RAM). The memory 802 may store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present disclosure are implemented by software or firmware, relevant program codes are stored in the memory 802, and the processor 801 invokes an infusion control method based on pump balance joint adjustment to execute the embodiments of the present disclosure;
An input/output interface 803 for implementing information input and output;
the communication interface 804 is configured to implement communication interaction between the device and other devices, and may implement communication in a wired manner (e.g., USB, network cable, etc.), or may implement communication in a wireless manner (e.g., mobile network, WIFI, bluetooth, etc.);
a bus 805 that transfers information between the various components of the device (e.g., the processor 801, the memory 802, the input/output interface 803, and the communication interface 804);
wherein the processor 801, the memory 802, the input/output interface 803, and the communication interface 804 implement communication connection between each other inside the device through a bus 805.
The embodiment of the application also provides CRRT equipment which comprises the infusion control device based on pump scale joint debugging.
The embodiment of the application also provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program which is executed by a processor to realize the infusion control method based on pump balance joint adjustment.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. The apparatus embodiments described above are merely illustrative, in which the elements illustrated as separate components may or may not be physically separate, implemented to reside in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and may include any information delivery media.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit and scope of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.

Claims (10)

1. An infusion control method based on pump balance joint debugging is characterized by being applied to CRRT equipment, wherein the CRRT equipment comprises a peristaltic pump and a weighing device, the weighing device is used for weighing an infusion pipeline of the CRRT equipment, and the infusion control method based on pump balance joint debugging comprises the following steps:
obtaining a target flow, determining a first target rotating speed according to the target flow, and obtaining a first weighing value of the weighing device, wherein the first target rotating speed is used for indicating a rotating speed value of the peristaltic pump in a rotating speed stable running state, and the first weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the first target rotating speed;
when the running time of the peristaltic pump reaches a preset first time according to the first target rotating speed, acquiring a second weighing value from the weighing device, determining a first pump driving capacity according to the first target rotating speed and the first time, and determining a first weighing capacity according to the first weighing value and the second weighing value;
Determining a first capacity deviation value between the first pump driving capacity and the first weighing capacity, and adjusting the first target rotating speed to a second target rotating speed according to the first capacity deviation value and a preset second duration when the first capacity deviation value is larger than or equal to a preset first capacity deviation threshold;
determining a second pump driving capacity according to the second target rotating speed, a third time length and the first pump driving capacity, determining a second weighing capacity according to the first weighing value and the third weighing value, and determining a second capacity deviation value according to the second pump driving capacity and the second weighing capacity, wherein the third time length is the time length of the peristaltic pump running according to the second target rotating speed, and the third weighing value is acquired from the weighing device after the third time length is run;
when the second capacity deviation value is smaller than or equal to a preset second capacity deviation threshold value, determining a third target rotating speed according to the first target rotating speed, the third duration, the second target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the third target rotating speed, wherein the second capacity deviation threshold value is larger than the first capacity deviation threshold value.
2. The pump balance joint adjustment-based infusion control method according to claim 1, wherein the determining the first target rotational speed from the target flow rate includes:
acquiring the input pressure of the output end of the infusion pipeline;
acquiring a reference rotating speed from a preset pressure rotating speed meter according to the target flow and the input pressure, wherein the pressure rotating speed meter is used for indicating the mapping relation among the infusion flow, the input pressure and the rotating speed of the peristaltic pump;
and determining the first target rotating speed according to the reference rotating speed.
3. The pump balance joint adjustment-based infusion control method according to claim 2, wherein the determining the first target rotational speed from the reference rotational speed includes:
controlling the peristaltic pump to operate according to the reference rotating speed;
acquiring a first feedback rotating speed of the peristaltic pump, and determining a first rotating speed deviation value according to the reference rotating speed and the first feedback rotating speed, wherein the first feedback rotating speed is used for indicating an actual rotating speed when the peristaltic pump is controlled to operate according to the reference rotating speed;
when the first rotational speed deviation value is smaller than or equal to a preset first rotational speed deviation threshold value, determining the reference rotational speed as the first target rotational speed;
Or when the first rotational speed deviation value is greater than the first rotational speed deviation threshold value, the reference rotational speed is adjusted to the first target rotational speed, wherein the deviation value of the first target rotational speed and the first feedback rotational speed is smaller than or equal to the first rotational speed deviation threshold value.
4. The pump balance joint adjustment-based infusion control method according to claim 3, wherein the adjusting the reference rotational speed to the first target rotational speed when the first rotational speed deviation value is greater than the first rotational speed deviation threshold value includes:
when the first rotational speed deviation value is greater than or equal to a preset second rotational speed deviation threshold value, the reference rotational speed is adjusted in equal proportion according to the ratio of the reference rotational speed to the feedback rotational speed, and the adjusted reference rotational speed is determined to be the first target rotational speed, wherein the second rotational speed deviation threshold value is greater than the first rotational speed deviation threshold value;
or when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is larger than the feedback rotational speed, and the reference rotational speed is increased by a preset rotational speed adjustment unit to obtain the first target rotational speed, wherein the rotational speed adjustment unit is the minimum adjustable value of the rotational speed of the peristaltic pump, the third rotational speed deviation threshold is smaller than the second rotational speed deviation threshold, and the third rotational speed deviation threshold is larger than the first rotational speed deviation threshold;
Or when the first rotational speed deviation value is smaller than the second rotational speed deviation threshold, the first rotational speed deviation value is larger than a preset third rotational speed deviation threshold, the reference rotational speed is smaller than the feedback rotational speed, and the reference rotational speed is reduced by one rotational speed adjustment unit to obtain the first target rotational speed;
or, when the first rotational speed deviation value is less than or equal to the third rotational speed deviation threshold value, determining the reference rotational speed as the first target rotational speed.
5. The pump balance co-modulation based infusion control method of claim 4, further comprising, after said maintaining operation of the peristaltic pump in accordance with the third target rotational speed:
acquiring a second feedback rotating speed of the peristaltic pump, and determining a second rotating speed deviation value according to the third target rotating speed and the second feedback rotating speed, wherein the second feedback rotating speed is used for indicating the actual rotating speed when the peristaltic pump is controlled to operate according to the third target rotating speed;
when the second rotational speed deviation value is smaller than or equal to the first rotational speed deviation threshold value, maintaining the peristaltic pump to operate according to the third target rotational speed;
or when the second rotation speed deviation value is greater than the first rotation speed deviation threshold value, the third target rotation speed is adjusted to be a fourth target rotation speed, wherein the deviation value of the fourth target rotation speed and the second feedback rotation speed is smaller than or equal to the first rotation speed deviation threshold value.
6. The pump balance co-modulation based infusion control method of claim 1, further comprising, after said maintaining operation of the peristaltic pump in accordance with the third target rotational speed:
acquiring a fourth weighing value of the weighing device, wherein the fourth weighing value is used for indicating the weight of the infusion pipeline at the starting moment of the peristaltic pump applying the third target rotating speed;
when the peristaltic pump reaches the first time according to the time length of the third target rotating speed operation, a fifth weighing value is obtained from the weighing device, a third pump driving capacity is determined according to the third target rotating speed and the first time length, and a third weighing capacity is determined according to the fourth weighing value and the fifth weighing value;
determining a third capacity deviation value between the third pump driving capacity and the third weighing capacity, and adjusting the third target rotating speed to a fifth target rotating speed according to the third capacity deviation value and the second duration when the third capacity deviation value is greater than or equal to the first capacity deviation threshold;
determining a fourth pump driving capacity according to the fifth target rotating speed, a fourth time length and the third pump driving capacity, determining a fourth weighing capacity according to the fourth weighing value and a sixth weighing value, and determining a fourth capacity deviation value according to the fourth pump driving capacity and the fourth weighing capacity, wherein the fourth time length is a time length of the peristaltic pump running according to the fifth target rotating speed, and the sixth weighing value is obtained from the weighing device after running the fourth time length;
And when the fourth capacity deviation value is smaller than or equal to the second capacity deviation threshold value, determining a sixth target rotating speed according to the third target rotating speed, the fourth time length, the fifth target rotating speed and the second capacity deviation threshold value, and maintaining the peristaltic pump to operate according to the sixth target rotating speed.
7. The pump balance joint adjustment-based infusion control method according to claim 1, wherein the third target rotation speed is determined according to the first target rotation speed, the third duration, the second target rotation speed, and the second capacity deviation threshold value, and is obtained by the following expression:
wherein->For the third target rotational speed, +.>For the first target rotational speed, +.>For the second target rotational speed, +.>For said third duration,/->Is the second capacity deviation threshold.
8. An infusion control device based on pump balance joint debugging, comprising at least one control processor and a memory for communication connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the pump balance joint adjustment-based infusion control method according to any one of claims 1 to 7.
9. A CRRT apparatus comprising the pump balance joint tone-based infusion control device of claim 8.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the pump balance joint adjustment-based infusion control method according to any one of claims 1 to 7.
CN202311148235.0A 2023-09-07 2023-09-07 Infusion control method, device, equipment and storage medium based on pump balance joint debugging Active CN116870296B (en)

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