CN115212375A

CN115212375A - Medical surgical pump infusion control system, method and computer readable storage medium

Info

Publication number: CN115212375A
Application number: CN202210868243.1A
Authority: CN
Inventors: 彭名旭; 杨韬睿; 左鹏飞
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd; Wuhan Mindray Medical Technology Research Institute Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd; Wuhan Mindray Medical Technology Research Institute Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-10-21

Abstract

The embodiment of the application provides a medical surgical pump infusion control system, a method and a computer readable storage medium. The first sensor is arranged on the flow path of the upstream pipeline, the first sensor is used for sensing the flow of the medical liquid in the upstream pipeline to obtain a first sensing signal, the first flow signal is obtained through the controller, and the rotating speed of the roller is controlled through the power mechanism according to the first flow signal so as to control the flow speed of the medical liquid in the pipeline.

Description

Medical surgical pump infusion control system, method and computer readable storage medium

Technical Field

The application relates to the technical field of medical treatment, in particular to a medical surgical pump infusion control system, a medical surgical pump infusion control method and a computer readable storage medium.

Background

In endoscopic surgery, a medical surgical pump such as a flushing suction pump is needed to flush a wound surface in a cavity and suck waste liquid out so as to keep a clear view. The infusion amount (or the flow rate) extruded by the irrigation and suction pump is one of key indexes, and the inaccurate flow rate can cause the inaccurate infusion and the error of pressure calculation in the cavity, thereby influencing the visual field and reducing the operation quality.

Disclosure of Invention

The embodiment of the application provides a medical surgical pump infusion control system, a medical surgical pump infusion control method and a computer readable storage medium, which can improve the accuracy of traditional Chinese medicine liquid output in a pipeline and reduce the error rate possibly occurring in pressure estimation in a cavity.

The embodiment of the application provides a medical surgery pump delivery liquid control system, includes:

a fluid source for storing a medical fluid;

a pipeline, one end of which is used for being connected with the fluid source so as to allow the medical liquid to flow out through the other end of the pipeline;

the extrusion mechanism comprises a power mechanism and a roller, the pipeline is installed in a matched manner with the roller, and the power mechanism is used for driving the roller to move so that the medical liquid in the pipeline moves towards a preset direction under the action of the roller; wherein the tubing is divided by the expression mechanism into an upstream tubing and a downstream tubing, the medical liquid flowing from the upstream tubing to the downstream tubing;

the first sensor is arranged on the flow path of the upstream pipeline and used for sensing the fluid at a first sampling position point of the upstream pipeline to obtain a first flow signal;

a controller in communication with the first sensor and the power mechanism, the controller configured to: and controlling the rotating speed of the roller through the power mechanism according to the first flow signal so as to control the flow rate of the medical liquid in the pipeline.

The embodiment of the application also provides a medical surgical pump infusion control method, which is applied to the medical surgical pump infusion control system, wherein the medical surgical pump infusion control system comprises a fluid source, a pipeline, a squeezing mechanism, a first sensor and a controller; the fluid source is used for storing medical liquid; one end of the pipeline is used for being connected with the fluid source so that the medical liquid can flow out through the other end of the pipeline; the extrusion mechanism comprises a power mechanism and a roller, the pipeline is installed in a matched mode with the roller, and the power mechanism is used for driving the roller to move so that the medical liquid in the pipeline moves towards a preset direction under the action of the roller; wherein the tubing is divided by the expression mechanism into an upstream tubing and a downstream tubing, the medical liquid flowing from the upstream tubing to the downstream tubing; the first sensor is arranged on the flow path of the upstream pipeline and used for sensing the fluid at a first sampling position point of the upstream pipeline to obtain a first flow signal; the controller is in communication connection with the first sensor and the power mechanism, and the infusion control method of the medical surgical pump comprises the following steps:

the controller acquiring the first flow signal of the first sensor;

and controlling the rotating speed of the roller through the power mechanism according to the first flow signal so as to control the flow rate of the medical liquid in the pipeline.

Embodiments of the present application further provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements any one of the above-mentioned infusion control methods for a surgical pump.

The embodiment of the application provides a medical surgical pump infusion control system, a medical surgical pump infusion control method and a computer readable storage medium, wherein the medical surgical pump infusion control system comprises a fluid source, a pipeline, an extrusion mechanism, a first sensor and a controller, the pipeline is divided into an upstream pipeline and a downstream pipeline by the extrusion mechanism, medical liquid in the fluid source flows from the upstream pipeline to the downstream pipeline, the first sensor is arranged on a flow path of the upstream pipeline, the first sensor is used for sensing the flow of the medical liquid in the upstream pipeline to obtain a first sensing signal, the controller is used for obtaining a first flow signal, and according to the first flow signal, the rotating speed of a roller is controlled through a power mechanism to control the flowing speed of the medical liquid in the pipeline.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a medical surgical pump infusion control system provided by an embodiment of the present application;

FIG. 2 is another schematic view of a surgical pump infusion control system provided by an embodiment of the present application;

FIG. 3 is a schematic view of an operating scenario of a medical surgical pump infusion control system provided by an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating an identification of empty pipe and non-empty pipe based on a first flow signal provided by an embodiment of the present application;

FIG. 5 is a schematic view of another operational scenario of a medical surgical pump infusion control system provided by an embodiment of the present application;

FIG. 6 is a flow chart illustrating a method for controlling infusion of a surgical pump according to an embodiment of the present application;

FIG. 7 is another schematic flow chart diagram illustrating a method for controlling infusion of a surgical pump according to an embodiment of the present application;

fig. 8 is a schematic flow chart of a method for controlling infusion of a surgical pump according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements or other objects in some cases, these elements or objects should not be limited by these terms. These terms are only used to distinguish one element/object from another element/object.

The medical surgical pump infusion control system, the medical surgical pump infusion control method, and the computer-readable storage medium according to the embodiments of the present application will be described in detail below, respectively. It should be noted that, the following description sequence of the embodiments is not to be taken as a limitation on the preferred sequence of the embodiments, a medical surgical pump in a specific practice may include a uterus expansion pump and a flushing and suction pump, and the description of using the uterus expansion pump or the flushing and suction pump in the embodiments of the present application is not to be considered as a limitation on a specific application scenario of the present solution.

Fig. 1 and 2 are schematic structural diagrams of an infusion control system of a medical surgical pump according to an embodiment of the present application, and fig. 3 is a schematic view of an operation scenario of the infusion control system of the medical surgical pump according to the embodiment of the present application. The medical surgical pump in fig. 3 is described by taking a uterus expansion pump as an example, and the irrigation and suction pump can also be described by referring to a uterus expansion pump infusion control system.

As shown in fig. 1 and 2, the medical surgical pump fluid delivery control system 100 includes a fluid source 110, a line 120, a first sensor 130, a squeezing mechanism 141, and a controller 142. Wherein the controller 142 is communicatively coupled to the pressing mechanism 141 and also communicatively coupled to the first sensor 130. The pressing mechanism 141 and the controller 142 belong to objects/components/elements in the medical surgical pump 140. Various objects/components/elements of the medical surgical pump fluid control system 100 will be further described below.

A fluid source 110 for storing a fluid, the fluid stored in the fluid source 110 may be a medical fluid. The fluid source 110 includes, but is not limited to, a syringe, a fluid bag, a fluid storage bottle, a fluid storage tank, and other components capable of storing medical fluid, and the medical fluid stored in the fluid source includes, but is not limited to, physiological saline, other medical fluids applicable in endoscopic surgery, and the like.

A tube 120 for passing a fluid, such as a medical liquid, therethrough, one end of the tube 120 being connected to the fluid source 110, the fluid, such as a medical liquid, flowing into one end of the tube 120 and out the other end of the tube 120. The pipe 120 has a hollow cavity for fluid to pass through, and the fluid flows in from one end of the pipe 120 and flows out from the other end of the pipe 120 through the cavity.

As shown in FIG. 3, in an embodiment of the surgical pump infusion control system 100, one end of tubing 120 is adapted to be connected to a fluid source 110 for the flow of medical fluid from the other end of the tubing 120 through a lumen. When performing the endoscopic surgery, one end of the tube 120 from which the medical liquid flows out is used to connect with the endoscopic system 150, and the medical liquid in the tube 120 flows into the endoscopic system 150 after flowing out from the end of the tube, and finally is input into the target cavity through the endoscopic system 150.

The extrusion mechanism 141 comprises a power mechanism 1411 and a roller 1412, and the pipeline 120 is installed in cooperation with the roller 1412. The power mechanism 1411 is in communication with the controller 142, the power mechanism 1411 may include a motor and other components capable of providing power, and the power mechanism 1411 drives the roller 1412 to move/rotate under the control of the controller 142, so that the fluid in the pipeline 120 moves toward a predetermined direction under the action of the roller 1412. As shown in fig. 3, the medical fluid in the conduit 120 is moved in the direction indicated by the arrow by the roller 1412.

In an embodiment, the pressing mechanism 141 may further include a pump blade and a pressing plate (not shown), the actuating mechanism 1411 is controlled by the controller 142 to operate at a predetermined rotation speed and a predetermined rotation direction, for example, the actuating mechanism 1411 drives/drives the roller 1412 connected thereto to rotate during rotation, the roller 1412 rotates, the pump blade on the roller 1412 reciprocates sequentially, and the pump blade and the pressing plate cooperate to reciprocally press and release the outer wall of the pipeline 120 sequentially, so as to move the fluid in the pipeline 120 in a predetermined direction.

As shown in fig. 3, the pipe 120 is divided into an upstream pipe 121 and a downstream pipe 122 by a pressing mechanism 141. Wherein the upstream line 121 comprises the line from the fluid source 110 to the expression mechanism 141 and the downstream line 122 comprises the line from the expression mechanism 141 to the endoscopic system 150, it is apparent that a fluid, such as a medical fluid, flows from the upstream line 121 to the downstream line 122.

A first sensor 130 is communicatively coupled to the controller 142, the first sensor 130 is disposed in the flow path of the upstream line 121 for sensing the fluid at a first sampling location of the upstream line 121 to obtain a first flow signal.

The flow path of the tube 120 includes not only the path formed by the fluid, such as medical liquid, in the tube 120, but also the path formed by the tube 120 itself. The first sensor 130 is disposed on the flow path of the upstream pipe 121, including any portion intersecting/contacting with the flow path of the upstream pipe 121, for example, may be disposed outside the upstream pipe 121, may be disposed inside the upstream pipe 121, and the like. Wherein, when the first sensor 130 is disposed outside the upstream pipe 121, the first sensor 130 is conveniently installed.

Regardless of the location on the flow path of the upstream line 121 at which the first sensor 130 is disposed, the first sensor is configured to sense the fluid at the first sampling location point of the upstream line 121 to obtain a first flow signal, i.e., is configured to sense the fluid flow at the first sampling location point of the upstream line 121 to obtain a first flow signal. Wherein the first sampling location point is located in the flow path of the upstream tubing 121, i.e., the tubing between the fluid source 110 and the expression mechanism 141.

The first sensor 130 may be any sensor capable of sensing a first flow signal from the fluid at the first sampling location of the upstream line 121, such as a pressure sensor, a flow rate sensor, an ultrasonic sensor, an optical sensor, etc. In one embodiment, the first sensor 130 may be positioned at the same height as the roller 1412, or at another suitable position.

In actual practice, as shown in fig. 1, the first sensor 130 does not belong to an object/component/element in the medical surgical pump 140. While in the embodiment shown in fig. 2, the first sensor 130 belongs to an object/component/element in the medical surgical pump 140.

And a controller 142, which is in communication connection with the first sensor 130 and the power mechanism 1411. The controller 142 is used to acquire a first flow signal from the first sensor 130. After obtaining the first flow signal, the first sensor 130 sends the first flow signal to the controller 142, and the controller 142 passively acquires the first flow signal; or the controller 142 sends an acquisition request for acquiring the first flow signal of the first sensor 130, the first sensor 130 sends the acquired first flow signal to the controller 142 based on the acquisition request, and the controller 142 actively acquires the first flow signal.

After the controller 142 obtains the first flow signal, the controller 142 is further configured to control the rotation speed of the roller 1412 through the power mechanism 1411 according to the first flow signal, so as to control the flow rate or flow rate of the medical liquid in the pipeline 120, for example, to make the flow rate or flow rate of the medical liquid meet a preset target, or to make the infusion amount of the medical liquid in the same time be the same, where the preset target may be a specific target flow rate value or target flow rate value, or may be a target flow rate value range or target flow rate value range.

The controller 142 is further configured to determine a characteristic of the medical fluid according to the first flow signal, and control the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristic of the medical fluid, so as to control the flow rate of the medical fluid in the pipeline 120.

The characteristic of the medical fluid includes a current liquid level of the medical fluid stored in the fluid source 110, a density of the medical fluid, a flow rate of the medical fluid in the pipeline 120, or a flow rate of the medical fluid in the pipeline 120, and the characteristic of the medical fluid may be other characteristics.

In endoscopic surgery, it is found that the flow rate is affected by the height of the fluid source 110, for example, for the same medical liquid, the larger the distance between the fluid source 110 and the medical surgical pump 140 is, the larger the amount of the medical liquid flowing out from the pressing mechanism 141 is, which causes inaccurate flow rate of the medical liquid and reduces the quality of the surgery. Medical surgical pumps in the industry today do not have any means to account for the flow rate inaccuracy resulting from this height difference.

In the embodiment of the present application, the rotation speed of the roller 1412 may be controlled according to the current liquid level of the medical liquid stored in the fluid source 110, so that the flow rate or the flow rate of the medical liquid flowing out of the extruding mechanism 141 meets the preset target or the infusion amount of the medical liquid in the same time is the same, thereby improving the accuracy of outputting the medical liquid in the pipeline 120. Correspondingly, the characteristic of the medical fluid is the current level of the medical fluid stored in the fluid source 110.

In one embodiment, the controller 142 is further configured to determine a current level of the medical fluid stored in the fluid source 110 based on the first flow signal and to control the rotational speed of the roller 1412 via the power mechanism 1411 based on the current level. That is, the controller 142, when performing the determination of the characteristic of the medical liquid based on the first flow signal, includes: determining a current level of the medical fluid stored in the fluid source 110 based on the first flow signal; the controller 142, when controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristics of the medical fluid, includes: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the current liquid level.

Correspondingly, the first sensor 130 may be a pressure sensor, and the first flow signal of the first sensor 130 may include any one of a pressure signal, a voltage signal, and a digital-to-analog signal, for example, the first flow signal is a pressure signal. The controller 142 may determine a pressure value at the first sampling location based on the first flow signal, such as a pressure signal, obtain a pressure value corresponding to the first flow signal, and determine a current level of the medical fluid stored in the fluid source 110 based on the pressure value and a pressure equation. The pressure formula is P = ρ gh, wherein P is a pressure value, ρ is the density of the medical liquid, g is a gravity constant, and h is the current liquid level height of the medical liquid.

After the controller 142 determines the current level of the medical fluid stored in the fluid source 110, the rotational speed of the roller 1412 is controlled by the actuating mechanism 1411 under the control of the controller 142 according to the current level.

In one case, the controller 142 is specifically configured to determine a target rotation speed of the roller 1412 according to the current liquid level, and adjust the rotation speed of the roller 1412 to the target rotation speed through the power mechanism 1411 when the rotation speed of the roller 1412 is different from the target rotation speed. In this embodiment, the controller 142 directly determines the target rotation speed of the roller 1412 according to the current liquid level, where the target rotation speed is a specific rotation speed value, and adjusts the rotation speed of the roller 1412 to the target rotation speed.

The controller 142 may obtain the correlation between the different liquid levels in the fluid source 110 and the rotation speed of the roller 1412, and determine the target rotation speed of the roller 1412 corresponding to the current liquid level according to the correlation. The association may be saved to memory 143 of the surgical pump 140. The correlation can be obtained by experimental fitting or computer modeling fitting. For example, the association may be obtained by experimental fitting or computer modeling fitting in other computer devices and then stored in the memory 143 of the surgical pump 140, or in some cases, the association may be obtained by experimental fitting or computer modeling fitting directly in the surgical pump 140 and stored.

The memory 143 is used for storing software programs and modules for implementing the infusion control method of the medical surgical pump, and data related to executing various functions, such as the pressure value corresponding to the first flow signal, the density of the medical fluid, the current fluid level, the target rotation speed, the correlation relationship, and the like, which are mentioned above, and the preset fluid level, the preset density, the preset flow rate, the preset pressure threshold one, the preset pressure threshold two, the first rotation speed, the second rotation speed, and the like, which are mentioned below, which are not listed herein and will not be described repeatedly below. Memory 143 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory, among others.

In an embodiment, obtaining the association relationship through experimental fitting may include: the method comprises the steps of obtaining pipeline parameters of the pipeline 120 and roller parameters of the roller 1412, obtaining different rotating speeds corresponding to the roller 1412 when the flow rate of medical liquid in the pipeline 120 meets preset conditions at different liquid level heights of the fluid source 110 under the corresponding pipeline parameters and roller parameters, and fitting the different rotating speeds of the roller 1412 corresponding to the different liquid level heights of the fluid source 110 to obtain the association relationship between the different liquid level heights in the fluid source 110 and the rotating speeds of the roller 1412. The pipeline parameters comprise the pipe diameter of the pipeline, the material of the pipeline and the like, the roller parameters comprise the radius of the roller, the number of wheels in the roller and the like, and the pipeline parameters and the roller parameters can also be other corresponding parameters; the preset condition may be that the flow rate or flow rate of the medical liquid meets a preset target or that the flow rate of the medical liquid is such that the infusion amount of the medical liquid in the same time in the pipeline 120 is the same.

In an embodiment, the pipeline 120 and the roller 1412 are installed in a matching manner through a pipe groove, and correspondingly, when the correlation relationship is obtained through experimental fitting, parameters of the pipe groove may also be obtained, for example, if the pipe groove is annular, the parameters of the pipe groove include a radius of the pipe groove and a radian of the pipe groove, and when the flow rate of the medical liquid in the pipeline 120 meets a preset condition under the corresponding parameters of the pipeline, the roller 1412 and the pipe groove, different rotation speeds corresponding to the roller 1412 are obtained, and the correlation relationship between the different liquid level heights in the fluid source 110 and the rotation speed of the roller 1412 is obtained by fitting the different rotation speeds of the roller 1412 corresponding to the fluid source 110 under the different liquid level heights.

The correlation between the different fluid levels in the fluid source 110 and the rotational speed of the roller 1412 may be represented by a linear or non-linear function or a data table. After the association relationship is obtained through experimental fitting, when the current liquid level height is obtained according to the first flow signal of the first sensor, the current liquid level height is input into a linear function or a nonlinear function, or the current liquid level height is searched from a data table, so that the target rotating speed of the corresponding roller 1412 can be obtained.

In an embodiment, obtaining the association relationship by fitting through computer modeling may include: under the corresponding pipeline parameters, roller parameters and pipe groove parameters, when the medical liquid of the fluid source 110 is at different liquid level heights and the flow rate of the medical liquid in the pipeline 120 meets preset conditions, different rotating speeds corresponding to the roller 1412 serve as training sample sets, each training sample includes a liquid level height and the rotating speed of the roller at the liquid level height, each training sample in the training sample sets is input into a computer model for training to obtain a trained computer model, and the computer model can be a neural network model or other suitable models, so that the trained computer model serves as the incidence relation between the different liquid level heights in the fluid source 110 and the rotating speed of the roller 1412. When the current liquid level height is obtained according to the first flow signal of the first sensor, the current liquid level height is input into the computer model and processed by the computer model, so that the target rotating speed of the corresponding roller 1412 can be obtained.

In the above embodiment, it is defined that the controller 142 directly determines a target rotation speed according to the current liquid level height, and adjusts the rotation speed of the roller 1412 to the target rotation speed through the power mechanism 1411 when the rotation speed of the roller 1412 is different from the target rotation speed.

In some embodiments, after the controller 142 determines the current level of the medical fluid stored in the fluid source 110, the direction of adjustment of the rotational speed of the roller 1412 is determined based on the current level.

Correspondingly, the controller 142 is further configured to obtain a preset level of the fluid source 110; if the current liquid level is higher than the preset liquid level, the rotating speed of the roller 1412 is reduced; if the current liquid level is lower than the preset liquid level, increasing the rotation speed of the roller 1412; if the current liquid level height meets the preset liquid level height, the roller 1412 keeps the current rotating speed unchanged. The preset liquid level can be a specific liquid level value or a liquid level value range.

If the fluid source 110 is higher than the preset fluid level, it means that the pressure value at the first sampling position point is increased, which results in more medical fluid output from the extruding mechanism 141 and an increase in the flow rate of the medical fluid, and therefore, the rotation speed of the roller 1412 is reduced, i.e., the rotation speed of the roller 1412 is negatively compensated; if the fluid source 110 is lower than the preset fluid level, it means that the pressure value at the first sampling position point becomes lower, resulting in a decrease in the flow rate of the medical fluid, and therefore, the rotation speed of the roller 1412 is increased, i.e., the rotation speed of the roller 1412 is positively compensated; if the fluid source 110 meets the predetermined fluid level, the current speed of the roller 1412 is maintained. In this way, the controller 142 controls the rotation speed of the roller 1412 so that the flow rate or the flow rate of the medical fluid of the fluid source 110 at different fluid levels meets the preset target or the infusion amount of the medical fluid in the same time is the same.

In one embodiment, the controller 142 is further configured to obtain a preset rotation speed corresponding to the lower roller 1412 with a preset liquid level; if the current liquid level height is larger than the preset liquid level height, determining a target compensation rotating speed according to the difference value between the current liquid level height and the preset liquid level height, and reducing the rotating speed of the roller 1412 according to the target compensation rotating speed; if the target liquid level height is less than the preset liquid level height, determining a target compensation rotation speed according to the difference between the preset liquid level height and the target liquid level height, and increasing the rotation speed of the roller 1412 according to the target compensation rotation speed. The embodiment further defines how much to decrease when the rotational speed negative compensation is required, i.e., the rotational speed of the roller 1412 is decreased, and how much to increase when the rotational speed positive compensation is required, i.e., the rotational speed of the roller 1412 is increased.

Based on the preset rotation speed corresponding to the preset liquid level lower roller 1412, it is understood that the flow rate or flow of the medical liquid can meet the preset target or the infusion amount of the medical liquid in the same time can be the same at the preset rotation speed corresponding to the preset liquid level lower roller 1412. Wherein the correlation between the difference between the current liquid level height and the preset liquid level height or the difference between the preset liquid level height and the current liquid level height, and the compensation speed may be set in advance. If the current liquid level height is larger than the preset liquid level height, determining a target compensation rotating speed according to the difference value between the current liquid level height and the preset liquid level height and the corresponding correlation, and reducing the current rotating speed of the roller 1412 by the target compensation rotating speed so as to reduce the rotating speed of the roller 1412; if the current liquid level height is smaller than the preset liquid level height, the target compensation rotating speed is determined according to the difference value between the preset liquid level height and the target liquid level height and the corresponding correlation, and the current rotating speed of the roller 1412 is increased by the target compensation rotating speed so as to increase the rotating speed of the roller 1412.

In one embodiment, the controller 142 is further configured to obtain a correspondence between the fluid level of the fluid source 110 and the compensated rotational speed of the roller 1412; if the current liquid level height is larger than the preset liquid level height, determining the target compensation rotating speed of the roller 1412 according to the current liquid level height and the corresponding relation, and reducing the rotating speed of the roller 1412 according to the target compensation rotating speed; if the current liquid level height is smaller than the preset liquid level height, the target compensation rotating speed of the roller 1412 is determined according to the current liquid level height and the corresponding relation, and the rotating speed of the roller 1412 is increased according to the target compensation rotating speed. In this embodiment, it is further defined that the fluid level of the fluid source 110 is further reduced by the amount necessary to reduce the rotation speed of the roller 1412 and increased by the amount necessary to increase the rotation speed of the roller 1412 according to the correspondence between the fluid level of the fluid source 110 and the compensated rotation speed of the roller 1412.

In the above embodiment, the influence of the current liquid level in the fluid source 110 on the medical liquid output by the roller 1412 of the squeezing mechanism 141 is considered, the first sensor is arranged on the flow path of the upstream pipeline 121, the current liquid level in the fluid source 110 is determined according to the first flow signal of the first sensor, the rotating speed of the roller 1412 is adjusted according to the current liquid level to adjust the flow rate of the medical liquid in the pipeline, the accuracy of the medical liquid output by the roller 1412 of the squeezing mechanism 141 is improved, the error rate possibly occurring in pressure estimation in the cavity is reduced, and the operation quality of the endoscopic surgery is improved.

In one embodiment, when the height of the fluid source 110 is the same, the density of the medical fluid is different, which may cause the flow rate of the medical fluid to be inaccurate and reduce the quality of the operation. In the embodiment of the present application, the rotation speed of the roller 1412 may be controlled according to the stored current density of the medical fluid in the fluid source 110, so that the flow rate or the flow rate of the medical fluid flowing out of the extruding mechanism 141 meets a preset target or the infusion amount of the medical fluid in the same time is the same, thereby improving the accuracy of outputting the medical fluid in the pipeline 120. Correspondingly, the characteristic of the medical fluid is the density of the current medical fluid stored in the fluid source 110.

The controller 142 is further configured to determine a current density of the medical fluid stored in the fluid source 110 according to the first flow signal, and control the rotation speed of the roller 1412 through the power mechanism 1411 according to the current density of the medical fluid. That is, when the controller 142 performs the determination of the characteristic of the medical liquid based on the first flow signal, it includes: determining a density of the current medical fluid stored in the fluid source 110 based on the first flow signal; the controller 142, when controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristics of the medical fluid, includes: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the density of the medical fluid at present.

The first sensor 130 may be a pressure sensor, and the first flow signal of the first sensor 130 may be a pressure signal. The controller 142 may determine a pressure value at the first sampling location based on the first flow signal, such as a pressure signal, obtain a pressure value corresponding to the first flow signal, and determine a density of the medical fluid stored in the fluid source 110 based on the pressure value and a pressure equation. The first sensor 130 may also be a density sensor, and the density of the medical fluid stored in the fluid source 110 may be determined directly from a density signal of the density sensor at the first sampling position.

In one case, the controller 142 is specifically configured to determine a target rotation speed of the roller 1412 according to the current density of the medical fluid, and adjust the rotation speed of the roller 1412 to the target rotation speed through the power mechanism 1411 when the rotation speed of the roller 1412 is different from the target rotation speed. For example, a correlation between the densities of different medical fluids in the fluid source 110 and the rotational speed of the roller 1412 may be obtained, where the correlation already considers that the flow rate or flow rate of the medical fluid needs to meet a preset target, and a target rotational speed corresponding to the density of the current medical fluid in the fluid source 110 is determined according to the correlation. Correspondingly, the manner of obtaining the correlation between the density of the medical fluid in the fluid source 110 and the rotation speed of the roller 1412 can refer to the correlation between the height of the fluid level in the fluid source 110 and the rotation speed of the roller 1412, which is not described in detail herein.

In one case, the control 142 is specifically configured to obtain a predetermined density of the medical fluid, and reduce the rotation speed of the roller 1412 if the current density of the medical fluid is greater than the predetermined density; if the density of the current medical liquid is smaller than the preset density, the rotating speed of the roller 1412 is increased, and if the density of the current medical liquid meets the preset density, the roller 1412 stores the current rotating speed unchanged. The preset density may be a specific density value or a range of density values.

In one embodiment, the controller 142 is further configured to obtain a predetermined rotation speed corresponding to the roller 1412 at a predetermined density; if the density of the current medical liquid is greater than the preset density, determining a target compensation rotating speed according to the difference value between the current density of the medical liquid and the preset density, and reducing the rotating speed of the roller 1412 according to the target compensation rotating speed; if the density of the current medical liquid is less than the preset density, the target compensation rotating speed is determined according to the difference value between the preset density and the density of the current medical liquid, and the rotating speed of the roller 1412 is increased according to the target compensation rotating speed.

In the embodiments, the influence of different densities of the medical liquid in the fluid source 110 on the medical liquid output by the roller 1412 of the squeezing mechanism 141 is considered, the density of the current medical liquid is determined through the first flow signal of the first sensor arranged on the flow path of the upstream pipeline 121, and the rotating speed of the roller 1412 is adjusted according to the density of the current medical liquid to adjust the flow rate of the medical liquid in the pipeline, so that the accuracy of the medical liquid output by the roller 1412 of the squeezing mechanism 141 is improved, the error rate possibly occurring in cavity pressure estimation is reduced, and the operation quality of the endoscopic surgery is improved.

In an embodiment, the flow rate of the medical liquid or the flow rate of the medical liquid at the first sampling position point in the pipeline 120 directly affects the flow rate of the medical liquid output by the squeezing mechanism 141, and the difference in the flow rate or the flow rate of the medical liquid at the first sampling position point causes the flow rate of the medical liquid output by the squeezing mechanism 141 to be inaccurate, thereby reducing the quality of the operation. In the embodiment of the present application, the rotation speed of the roller 1412 may be controlled according to the flow rate or the flow speed of the medical liquid at the first sampling position point, so that the flow rate or the flow speed of the medical liquid flowing out of the extruding mechanism 141 meets a preset target or the infusion amount of the medical liquid in the same time is the same, thereby improving the accuracy of outputting the medical liquid in the pipeline 120. Correspondingly, the characteristic of the medical liquid is a current flow rate of the medical liquid at the first sampling location point in the tubing 120, or a current flow rate of the medical liquid at the first sampling location point in the tubing 120.

The controller 142 is further configured to determine a current flow rate or a current flow rate of the medical fluid at the first sampling position point of the pipeline 120 according to the first flow signal, and control the rotation speed of the roller 1412 through the power mechanism 1411 according to the current flow rate or the current flow rate. That is, the controller 142, when performing the determination of the characteristic of the medical liquid based on the first flow signal, includes: determining the current flow or the current flow rate of the medical liquid at the first sampling position point of the pipeline 120 according to the first flow signal; the controller 142, when controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristics of the medical fluid, includes: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the current flow rate or the current flow rate of the medical fluid at the first sampling position point of the pipeline 120. The first sensor 130 may be any one of a flow sensor and a flow rate sensor, and the first flow signal may be a flow signal or a flow rate signal.

In one case, the controller 142 is specifically configured to determine a target rotation speed of the roller 1412 according to the current flow or the current flow rate, and adjust the rotation speed of the roller 1412 to the target rotation speed through the power mechanism 1411 when the rotation speed of the roller 1412 is different from the target rotation speed. For example, a correlation between the flow rate or flow velocity of the medical fluid at the first sampling location point and the rotation speed of the roller 1412, which has considered that the flow rate or flow velocity of the medical fluid needs to meet a preset target, may be obtained, and the current flow rate in the fluid source 110 or the target rotation speed corresponding to the current flow rate may be determined according to the correlation. Correspondingly, the obtaining manner of the correlation between the flow rate or the flow velocity of the medical liquid at the first sampling position point and the rotation speed of the roller 1412 may refer to the correlation between different liquid level heights in the fluid source 110 and the rotation speed of the roller 1412, which is not described in detail herein.

In one case, the controller 142 is specifically configured to obtain a preset flow rate or a preset flow rate of the medical liquid, and reduce the rotation speed of the roller 1412 if the current flow rate of the medical liquid is greater than the preset flow rate or the current flow rate is greater than the preset flow rate; if the current flow of the medical liquid is less than the preset flow, or the current flow rate is less than the preset flow rate, the rotating speed of the roller 1412 is increased, and if the current flow of the medical liquid meets the preset flow, or the current flow rate meets the preset flow rate, the roller 1412 keeps the current rotating speed unchanged. The preset flow can be a specific flow value or a flow value range; the predetermined flow rate may be a specific flow rate value or a range of flow rate values.

In an embodiment, the controller 142 is further configured to obtain a preset rotation speed corresponding to the roller 1412 at a preset flow rate or a preset flow rate; if the current flow is greater than the preset flow, or the current flow rate is greater than the preset flow rate, determining a target compensation speed according to a difference value between the current flow and the preset flow rate, or determining the target compensation speed according to a difference value between the current flow rate and the preset flow rate, and reducing the rotation speed of the roller 1412 according to the target compensation rotation speed; if the current flow is less than the preset flow, or the current flow rate is less than the preset flow rate, determining a target compensation speed according to a difference value between the preset flow rate and the current flow rate, or determining the target compensation speed according to a difference value between the preset flow rate and the current flow rate, and increasing the rotation speed of the roller 1412 according to the target compensation rotation speed.

In the embodiments, the influence of different flow rates or different flow rates of the medical liquid at the first sampling position point of the pipeline 120 on the medical liquid output by the roller 1412 of the extrusion mechanism 141 is considered, the current flow rate or the current flow rate of the medical liquid at the first sampling position point is determined by the first flow signal of the first sensor arranged on the flow path of the upstream pipeline 121, the rotation speed of the roller 1412 is adjusted according to the current flow rate or the current flow rate of the medical liquid at the first sampling position point to adjust the flow rate of the medical liquid in the pipeline, the accuracy of the medical liquid output by the roller 1412 of the extrusion mechanism 141 is improved, the error rate possibly occurring in the intra-cavity pressure estimation is reduced, and the operation quality of the endoscopic surgery is improved.

In all the embodiments described above, the rotation speed of the roller 1412 is controlled according to the first flow signal of the first sensor 130 in the upstream pipeline 121, and the flow speed or flow rate of the medical liquid in the pipeline 120 is adjusted, for example, the flow speed or flow rate of the medical liquid in the pipeline 120 meets a preset target, so that the accuracy of outputting the medical liquid in the pipeline 120 is improved, the error rate possibly occurring in the calculation of the pressure in the cavity is reduced, and the operation quality of the endoscopic surgery is improved.

With the above medical surgical pump infusion control system 100, after the medical surgical pump infusion control system 100 is started, before performing the endoscopic surgery, there is a possibility that the tube 120 is filled with air, i.e. the tube 120 is empty, and it is necessary for the medical staff to exhaust the tube 120. Typically, operation of the surgical pump fluid control system 100 at a relatively slow rate will occur upon actuation, whereas operation at a relatively slow rate will allow the patient to exhaust longer if the air is present in line 120 upon actuation, thereby reducing the efficiency of the procedure.

In all the embodiments described above, before the control of the flow rate of the medical liquid in the pipeline 120 is implemented, that is, before the controller 142 controls the rotation speed of the roller 1412 through the power mechanism 1411 according to the first flow signal to implement the control of the flow rate of the medical liquid in the pipeline 120, the controller 142 is further configured to control the power mechanism 1411 to drive the roller 1412 to operate at a first rotation speed when the first flow signal of the first sensor 130 indicates that the fluid corresponding to the first sampling position point of the upstream pipeline 121 is air, and control the power mechanism 1411 to drive the roller 1412 to operate at a second rotation speed when the first flow signal indicates that the fluid corresponding to the first sampling position point of the upstream pipeline 121 is the medical liquid, where the first rotation speed is greater than the second rotation speed, which is the rotation speed of the roller 1412 before the control of the flow rate of the medical liquid in the pipeline 120.

Before the flow rate of the medical liquid in the pipeline 120 is controlled, the controller 142 uses the first flow signal of the first sensor 130 on the flow path of the upstream pipeline 121 to identify the fluid corresponding to the first sampling position point of the pipeline 120, when the first flow signal indicates that the fluid corresponding to the first sampling position point of the pipeline 120 is air, it means that the medical surgical pump hydraulic control system 100 is empty, at this time, the control roller 1412 operates at a higher rotation speed to rapidly move the air in the pipeline 120, reduce the exhaust time, and improve the exhaust efficiency, when the first flow signal indicates that the fluid corresponding to the first sampling position point of the pipeline 120 is the medical liquid, it means that the medical pump hydraulic control system 100 is started with water (the medical liquid), and at this time, the control roller 1412 operates at a lower rotation speed, thereby ensuring the surgical safety.

Correspondingly, the first sensor 130 may be a pressure sensor, an ultrasonic sensor, a flow rate sensor, or the like. Specifically, the controller 142 is further configured to determine that the fluid corresponding to the first sampling position point of the pipeline 120 is air when the signal intensity of the first flow signal meets a first preset signal intensity requirement, and otherwise determine that the fluid corresponding to the first sampling position point of the pipeline 120 is medical liquid. The first preset signal strength requirements corresponding to different first sensors are different.

When the first sensor 130 is a pressure sensor, the signal strength of the first flow signal satisfies a first predetermined signal strength requirement, and the pressure signal strength or the variation of the pressure signal strength over a period of time of the first flow signal satisfies a corresponding first predetermined signal strength requirement.

The pressure signal intensity of the first flow signal meets the corresponding first preset signal intensity requirement, that is, the pressure signal intensity of the first sampling position point is lower than the first preset pressure threshold. If the intensity of the pressure signal at the first sampling position point is lower than the first preset pressure threshold, it is determined that the fluid corresponding to the first sampling position point of the pipeline 120 is air, otherwise, it is determined that the fluid corresponding to the first sampling position point of the pipeline 120 is medical liquid, as shown in fig. 4.

The first preset signal intensity requirement corresponding to the pressure intensity variation of the first sampling position point in a period of time is greater than a second preset pressure threshold, and the pressure intensity variation of the first flow signal in a period of time meets the corresponding first preset signal intensity requirement, that is, the pressure intensity variation of the first flow signal in a period of time is greater than the second preset pressure threshold. If the pressure signal intensity variation of the first flow signal in a period of time is greater than the preset pressure threshold value two, it is determined that the fluid corresponding to the first sampling position point of the pipeline 120 is air, otherwise, it is determined that the fluid corresponding to the first sampling position point of the pipeline 120 is medical liquid, and if the fluid corresponding to the first sampling position point of the pipeline 120 is medical liquid, the pressure signal intensity variation is not large. The preset pressure threshold value one and the preset threshold value two can be preset according to specific application conditions. The pressure signal intensity variation of a period of time may be the pressure signal intensity variation of two times before and after, or may be the pressure signal intensity variation of other predetermined times.

When the first sensor 130 is an ultrasonic sensor, the first preset signal strength requirement is lower than the first preset signal strength, and the signal strength of the first flow signal meets the first preset signal strength requirement, that is, the signal strength of the first flow signal is lower than the first preset signal strength. Correspondingly, after the controller 142 acquires the first flow signal, it detects whether the signal intensity of the first flow signal is lower than a first preset signal intensity, where the first preset signal intensity may be any signal intensity between a first signal intensity value corresponding to the first flow signal received by the receiving end of the ultrasonic sensor when the first sampling position point of the pipeline 120 is empty and a second signal intensity value corresponding to the first flow signal received by the receiving end of the pipeline 120 when the first sampling position point is non-empty, for example, the first preset signal intensity is an average value of the first signal intensity value and the second signal intensity value. When the signal intensity of the first flow signal is lower than the first preset signal intensity, that is, the signal intensity of the first flow signal meets the first preset signal intensity requirement, the fluid corresponding to the first sampling position point of the characterization pipeline 120 is air; when the signal intensity of the first flow signal is not lower than the first preset signal intensity, that is, the signal intensity of the first flow signal does not meet the first preset signal intensity requirement, the fluid corresponding to the first sampling position point of the characterization pipeline 120 is medical liquid.

When the first sensor 130 is a flow sensor or a flow rate sensor, the first preset signal strength requirement is lower than the first signal strength threshold, and the signal strength of the first flow signal satisfies the first preset signal strength requirement, that is, the signal strength of the first flow signal is lower than the first signal strength threshold. Correspondingly, after acquiring the first flow signal, the controller 142 detects whether the signal strength of the first flow signal is lower than a first signal strength threshold, where the first signal strength threshold may be any signal strength value between a first signal strength corresponding to the first flow signal of the flow sensor or the flow rate sensor when the first sampling position point of the pipeline 120 is empty and a second signal strength corresponding to the first flow signal when the first sampling position point of the pipeline 120 is non-empty, for example, the first signal strength threshold is an average value of the first signal strength and the second signal strength. When the signal intensity of the first flow signal is lower than the first signal intensity threshold, that is, the signal intensity of the first flow signal meets a first preset signal intensity requirement, it represents that the fluid corresponding to the first sampling position point of the pipeline 120 is air; when the signal intensity of the first flow signal is not lower than the first signal intensity threshold, that is, the signal intensity of the first flow signal does not meet the first preset signal intensity requirement, the fluid corresponding to the first sampling position point of the characterization pipeline 120 is medical liquid.

After the controller 142 identifies the fluid corresponding to the first sampling position point, if the fluid corresponding to the first sampling position point is air, the power mechanism 1411 is controlled to drive the roller 1412 to operate at a first rotation speed, and if the fluid corresponding to the first sampling position point is medical liquid, the power mechanism 1411 is controlled to drive the roller 1412 to operate at a second rotation speed.

In one embodiment, when the surgical pump fluid delivery control system 100 is idle, the controller 142 controls the actuating mechanism 1411 to drive the roller 1412 at a first rotational speed, and the controller begins timing, and after a predetermined period of time, controls the actuating mechanism 1411 to drive the roller 1412 at a second rotational speed. Wherein the preset time period can ensure that the air in the pipeline 120 is completely discharged.

Correspondingly, the surgical pump 140 also includes a timer 144, as shown in fig. 1 and 2. The timer 144 is configured to start timing when the roller 1412 operates at the first rotational speed after it is determined that the medical surgical pump hydraulic control system 100 is empty and started, and to determine a corresponding timing time in real time, at which the medical surgical pump hydraulic control system 100 exhausts air. When the timed time reaches a preset time period, that is, after the preset time period elapses, it means that the air in the pipeline 120 is completely exhausted, and the controller 142 controls the power mechanism 141 to drive the roller 1412 to operate at the second rotation speed. The preset duration may be determined according to parameters of the pipeline 120, such as the thickness of the pipe corresponding to the pipeline 120, the length of the pipe, and the like, and the first rotation speed.

Understandably, the first sensor 130 disposed on the flow path of the upstream pipeline 121 not only uses the first flow signal of the first sensor 130 to determine whether the corresponding fluid at the first sampling position point of the current pipeline 120 is air or medical liquid after the medical surgical pump infusion control system 100 is started, so that the controller 142 can control the roller 1412 to operate at different rotating speeds, thereby improving the air exhaust efficiency and ensuring the safety of the operation; meanwhile, when the exhaust is finished and the fluid is normally infused, the first sensor 130 may determine the characteristic of the medical fluid by using the first flow signal of the first sensor 130, so that the controller 142 may control the rotation speed of the roller 1412, thereby controlling the flow rate or flow rate of the medical fluid in the pipeline 120, so that the flow rate or flow rate of the medical fluid meets a preset target, or the infusion volume of the medical fluid in the pipeline 120 at the same time is the same.

Based on the above embodiment, as shown in fig. 1 and fig. 2, the medical surgical pump hydraulic control system 100 further includes a second sensor 160, the second sensor 160 is communicatively connected to the controller 142, the second sensor 160 may be disposed on the flow path of the downstream pipeline 122, i.e., on the flow path of the pipeline between the squeezing mechanism 141 and the endoscope system 150, and is used for sensing the fluid at the second sampling position point of the downstream pipeline 122 to obtain a second flow signal, and a schematic view of an operation scenario of the medical surgical pump hydraulic control system 100 may be referred to in conjunction with fig. 5. In this embodiment, the first sensor 130 is located in the flow path of the upstream line 121, and correspondingly, the first sampling location point is also located in the flow path of the upstream line 121; the second sensor 160 is located in the flow path of the downstream line 122, and correspondingly, the second sampling location point is also located in the flow path of the downstream line 122.

Where the second sensor 160 may be disposed at any location that intersects/contacts the flow path of the downstream pipe 122, in one embodiment, the second sensor 160 may be disposed outside the pipe 120 as the first sensor 130, which facilitates the installation of the second sensor 160.

Correspondingly, before the control of the flow rate of the medical liquid in the pipeline 120 is realized, that is, before the controller 142 controls the rotation speed of the roller 1412 through the power mechanism 1411 according to the first flow signal to realize the control of the flow rate of the medical liquid in the pipeline 120, the controller 142 is further configured to control the power mechanism 1411 to drive the roller 1412 to operate at a first rotation speed when the first flow signal of the first sensor 130 indicates that the fluid corresponding to the first sampling position point of the upstream pipeline 121 is air and the second flow signal of the second sensor 160 indicates that the fluid corresponding to the second sampling position point of the downstream pipeline 122 is air, and control the power mechanism 1411 to drive the roller 1412 to operate at a second rotation speed when the first flow signal indicates that the fluid corresponding to the first sampling position point of the upstream pipeline 121 is the medical liquid and the second flow signal indicates that the fluid corresponding to the second sampling position point of the downstream pipeline 122 is the medical liquid, wherein the first rotation speed is greater than the second rotation speed, which is the rotation speed of the roller 1412 before the control of the flow rate of the medical liquid in the pipeline 120 is realized.

After acquiring the first flow signal and the second flow signal, the controller 142 is further configured to identify a fluid corresponding to a first sampling position point of the pipeline 120 according to the first flow signal, and identify a fluid corresponding to a second sampling position point of the pipeline 120 according to the second flow signal. Specifically, the controller is further configured to determine that the fluid corresponding to the first sampling position point of the pipeline 120 is air when the signal intensity of the first flow signal meets a corresponding first preset signal intensity requirement, otherwise determine that the fluid corresponding to the first sampling position point of the pipeline 120 is medical liquid, determine that the fluid corresponding to the second sampling position point of the pipeline 120 is air when the signal intensity of the second flow signal meets a corresponding second preset signal intensity, and otherwise determine that the fluid corresponding to the second sampling position point of the pipeline 120 is medical liquid. The first preset signal strength requirements corresponding to different first sensors are different, and the second preset signal strength requirements corresponding to different second sensors are also different.

The signal strength of the first flow signal of different first sensors meets the corresponding first predetermined signal strength requirement, please refer to the above description, and the following description will explain that the signal strength of the second flow signal of the second sensor meets the corresponding second predetermined signal strength requirement.

When the second sensor 160 is a pressure sensor, the second flow signal may be a pressure signal, or the like, and the signal strength of the second flow signal satisfies a second predetermined signal strength requirement, where the pressure signal strength of the second flow signal or the variation of the pressure signal strength over a period of time satisfies the corresponding second predetermined signal strength requirement. The pressure signal intensity of the second flow signal meets the corresponding second preset signal intensity requirement, that is, the pressure signal intensity of the second sampling position point is lower than the preset pressure threshold value three. If the intensity of the pressure signal at the second sampling position point is lower than the preset pressure threshold value three, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is air, otherwise, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is medical liquid.

The second preset signal intensity requirement corresponding to the pressure intensity variation of the second sampling position point in a period of time is greater than the preset pressure threshold value four, and the pressure intensity variation of the second flow signal in a period of time meets the corresponding second preset signal intensity requirement, that is, the pressure intensity variation of the second flow signal in a period of time is greater than the preset pressure threshold value four. If the pressure signal intensity variation of the second flow signal in a period of time is greater than the preset pressure threshold value four, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is air, otherwise, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is medical liquid.

The preset pressure threshold value three and the pressure threshold value one can be the same or different, and the preset pressure threshold value four and the preset pressure threshold value two can be the same or different. The preset pressure threshold three and the preset pressure threshold four can also be preset according to specific situations.

When the second sensor 160 is an ultrasonic sensor, the second preset signal strength requirement is lower than the second preset signal strength, and the signal strength of the second flow signal meets the second preset signal strength requirement, that is, the signal strength of the second flow signal is lower than the second preset signal strength, where the second preset signal strength may be any signal strength between a third signal strength value corresponding to the second flow signal received by the receiving end of the ultrasonic sensor when the second sampling position point of the pipeline 120 is empty pipe and a fourth signal strength value corresponding to the second flow signal received by the receiving end when the second sampling position point of the pipeline 120 is non-empty pipe, for example, the second preset signal strength is an average value of the third signal strength value and the fourth signal strength value. The first preset signal strength and the second preset signal strength may be the same or different.

After acquiring the second flow signal, the controller 142 detects whether the signal strength of the second flow signal is lower than a second preset signal strength; if the signal intensity of the second flow signal is lower than the second preset signal intensity, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is air; if the signal intensity of the second flow signal is not lower than the second preset signal intensity, it is determined that the fluid corresponding to the second sampling position point of the pipeline 120 is the medical liquid.

When the second sensor 160 is a flow sensor or a flow rate sensor, the second predetermined signal strength requirement is lower than a second signal strength threshold, and the signal strength of the second flow signal satisfies the second predetermined signal strength requirement, that is, the signal strength of the second flow signal is lower than the second signal strength threshold. Correspondingly, after acquiring the second flow signal, the controller 142 detects whether the signal intensity of the second flow signal is lower than a second signal intensity threshold, where the second signal intensity threshold may be any signal intensity value between a third signal intensity corresponding to the second flow signal received by the flow sensor or the flow rate sensor when the second sampling position point of the pipeline 120 is empty and a fourth signal intensity corresponding to the second flow signal when the second sampling position point of the pipeline 120 is not empty, for example, the second signal intensity threshold is an average value of the third signal intensity and the fourth signal intensity. When the signal intensity of the second flow signal is lower than the second signal intensity threshold, that is, the signal intensity of the second flow signal meets a second preset signal intensity requirement, the fluid corresponding to the second sampling position point of the characterization pipeline 120 is air; when the signal intensity of the second flow signal is not lower than the second signal intensity threshold, that is, the signal intensity of the second flow signal does not meet the second preset signal intensity requirement, the fluid corresponding to the second sampling position point of the characterization pipeline 120 is medical liquid. The first signal strength threshold and the second signal strength threshold may be the same or different.

After acquiring the second flow signal, the controller 142 detects whether the signal strength of the second flow signal is lower than a second signal strength threshold; if the signal intensity of the second flow signal is lower than the second signal intensity threshold, determining that the fluid corresponding to the second sampling position point of the pipeline 120 is air; if the signal intensity of the second flow signal is not lower than the second signal intensity threshold, it is determined that the fluid corresponding to the second sampling location point of the tubing 120 is medical liquid.

After identifying the fluid corresponding to the first sampling position point and the fluid corresponding to the second sampling position point of the pipeline 120, the controller 142 further controls the power mechanism 1411 according to the fluid corresponding to the first sampling position point and the fluid corresponding to the second sampling position point to drive the roller 1412 to operate at corresponding rotation speeds, where different fluids correspond to different rotation speeds. Specifically, when the fluid corresponding to the first sampling position point of the first flow signal representing pipeline 120 is air, and the fluid corresponding to the second sampling position point of the second flow signal representing pipeline 120 is air, the power mechanism 1411 is controlled to drive the roller 1412 to operate at the first rotation speed; when the fluid corresponding to the first sampling position point of the first flow signal representation pipeline 120 is medical liquid, and the fluid corresponding to the second sampling position point of the second flow signal representation pipeline 120 is medical liquid, the power mechanism 1411 is controlled to drive the roller 1412 to operate at the second rotation speed. When the first flow signal and the second flow signal both indicate that the corresponding fluid in the corresponding position point of the pipeline 120 is medical liquid, it means that the pipeline 120 is filled with the medical liquid when the infusion control system of the medical surgical pump is started, at this time, an operation can be performed, and the driving roller 1412 operates at the second rotation speed to realize normal infusion.

In this embodiment, a first sensor 130 is disposed on the flow path of the upstream pipeline 121, a second sensor 160 is disposed on the flow path of the downstream pipeline 122, after the medical surgical pump infusion control system 100 is started, the controller 142 obtains a first flow signal corresponding to the first sensor 130 and a second flow signal corresponding to the second sensor 160, and identifies whether the medical surgical pump infusion control system is started in a blank pipe mode according to the fluid represented by the first flow signal and the second flow signal, in the case of the blank pipe mode, the control roller 1412 operates at a higher rotation speed, air in the pipeline 120 is rapidly moved, the air exhaust time is reduced, the air exhaust efficiency is improved, and in the case of the water start, the control roller 1412 operates at a lower rotation speed, so as to ensure the safety of the operation.

As can be appreciated, in this embodiment, two sensors are used together to identify whether the infusion control system of the medical surgical pump is empty-tube activated, and to achieve rapid air-bleeding when empty-tube is activated and normal infusion when water is activated; the use of two sensors can improve the accuracy and the control precision of the controller for controlling the exhaust and the infusion.

In an embodiment, the controller 142 is further configured to control the power mechanism 1411 to drive the roller 1412 to operate at a third rotation speed when the first flow signal indicates that the fluid corresponding to the first sampling position of the pipeline 120 is the medical liquid and the second flow signal indicates that the fluid corresponding to the second sampling position of the pipeline 120 is air, wherein the third rotation speed is not greater than the first rotation speed and not less than the second rotation speed, for example, the third rotation speed is less than the first rotation speed and greater than the second rotation speed. In this embodiment, the controller 142 controls the actuating unit 1411 to drive the roller 1412 to operate at a third rotation speed, which is between the first rotation speed and the second rotation speed, and is greater than the second rotation speed to exhaust air rapidly, while the third rotation speed is lower than the first rotation speed to prepare for normal fluid infusion.

In one embodiment, the second sensor 160 is not part of the object/component/element in the surgical pump 140, as shown in fig. 1. In some embodiments, the second sensor 160 belongs to an object/component/element in the medical surgical pump 140, as shown in fig. 2.

In one embodiment, the medical surgical pump fluid control system 100 includes a first sensor 130 and a second sensor 160, the first sensor 130 being disposed in the flow path of the upstream line 121 and the second sensor 160 being disposed in the flow path of the downstream line 122. When the roller 1412 of the medical surgical pump hydraulic control system 100 starts to operate at the second rotation speed, or the medical surgical pump hydraulic control system 100 starts to perform normal fluid infusion, or the flow rate of the medical fluid in the pipeline 120 is controlled, the controller 142 is further configured to control the rotation speed of the roller 1412 through the power mechanism 1411 according to the first flow signal of the first sensor 130 and the second flow signal of the second sensor 160.

The controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the first flow signal of the first sensor 130 and the second flow signal of the second sensor 160 includes: determining the characteristics of the medical liquid according to the first flow signal of the first sensor 130, and controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristics of the medical liquid; determining a flow rate or flow rate of the medical fluid via the second flow signal of the second sensor 160; according to the flow rate or flow rate corresponding to the second flow signal, the power mechanism 1411 controls the rotation speed of the roller 1412.

When the second flow signal indicates that the flow rate or the flow rate of the medical liquid meets a preset target or the infusion amount of the medical liquid in the same time is the same, it means that the rotation speed of the roller 1412 is successfully adjusted under the control of the controller 142, so that the flow rate or the flow rate of the medical liquid passing through the roller 1412 meets the preset target, or the infusion amount of the medical liquid in the same time is the same, and at this time, the current rotation speed of the roller 1412 is kept unchanged; when the flow rate or the flow rate of the medical liquid represented by the second flow signal does not meet a preset target, or the infusion amount of the medical liquid in the same time is different, the rotation speed of the roller 1412 is further controlled by the power mechanism 1411 according to the flow rate or the flow rate of the medical liquid represented by the second flow signal.

In an embodiment, if the second flow signal indicates that the flow rate or the flow rate of the medical liquid does not reach the preset target, or the second flow signal indicates that the flow rate or the flow rate of the medical liquid does not reach the preset infusion amount within the preset time, the controller 142 controls the power mechanism 1411 to increase the rotation speed of the roller 1412, so that the flow rate or the flow rate of the medical liquid reaches the preset target, or the flow rate of the medical liquid reaches the preset infusion amount within the preset time; if the second flow signal indicates that the flow rate or flow of the medical liquid exceeds the preset target, or the second flow signal indicates that the flow rate or flow of the medical liquid exceeds the preset infusion amount within the preset time, the controller 142 controls the power mechanism 1411 to reduce the rotation speed of the roller 1412, so that the flow rate or flow of the medical liquid reaches the preset target, or the flow rate or flow of the medical liquid reaches the preset infusion amount within the preset time.

When the flow rate of the medical liquid in the pipeline 120 is controlled, the rotation speed of the roller 1412 is further controlled according to the feedback of the second flow signal of the second sensor 160 of the downstream pipeline 122, and on one hand, the second sensor 160 can further control the rotation speed of the roller 1412 according to the first flow signal of the first sensor 130 in order to verify the control result of the control of the rotation speed of the roller 1412, and on the other hand, the rotation speed of the roller 1412 can be further controlled according to the second flow signal, so that a good effect is achieved.

In other embodiments, other sensors are used to control the rotation speed of the roller 1412, which will not be described in detail, and the principle thereof can refer to the principle of the first sensor and the second sensor shown above.

The measurement/sensing states of the first sensor 130 and/or the second sensor 160 in the embodiment of the present application are classified into the following types: the first is that the detection/sensing of the first sensor 130 and/or the second sensor 160 is intermittent multiple times, for example, the detection may be performed according to a predetermined rule, for example, every first preset time, or the detection may be performed after receiving an acquisition request from the controller. The second is that the sensing of the first sensor is continuous and is always on. Wherein the two measurement/sensing states can be set to switch, and regardless of which measurement state/sensing is employed, the controller 142 can obtain the first flow signal from the first sensor 130 and/or the second flow signal from the second sensor 160.

As shown in fig. 1 and 2, the medical surgical pump 140 may also include an input/output system 145, the input/output system 145 including, but not limited to, an input/output interface 1451 between the medical surgical pump 140 and input/output peripherals, a display screen 1452, a light assembly 1453, other input/output components 1454, and the like. The display screen 1452 may be used to display data, including graphics, text, charts, video, combinations thereof, etc., that may be retrieved by the controller 142, the light assembly 1453 may include a visual alarm element for alerting the medical surgical pump 140 of an abnormal condition, and the other input/control assemblies 1454 may include, but are not limited to, physical buttons (e.g., push buttons, rocker buttons, touch buttons, etc.), slider switches, joysticks, etc., such as a physical button for emergency infusion stop.

In one embodiment, one or more of an RF (radio frequency) circuit 146, an audio circuit 147, and a power supply 148 may also be included in the surgical pump 140. The controller 142 communicates with RF circuitry 146, audio circuitry 147, and power supply 148, among other things. The RF circuit 146 is configured to transceive radio frequency signals, so as to establish wireless communication with a network device or other devices, such as the first sensor 130, the second sensor 160, etc., and transceive signals with the network device or other devices, such as the first sensor 130, the second sensor 160, etc.; the audio circuitry 147 may be used to provide an audio interface between the user and the electronic device through a speaker, microphone; the power supply 148 is used to power various objects/components/elements of the medical surgical pump 140.

Those skilled in the art will appreciate that the medical surgical pump hydraulic control system 100 illustrated in fig. 1 and 2 does not constitute a limitation of the medical surgical pump hydraulic control system 100 and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components.

Fig. 6 is a flow chart of a method for controlling infusion of a medical surgical pump, which is provided by an embodiment of the present application, and is applied to a medical surgical pump infusion control system 100, in which a medical surgical pump in a specific practice may include a uterine distention pump, a flushing suction pump, or another type of medical surgical pump, the medical surgical pump infusion control system 100 includes a fluid source 110, a pipeline 120, a squeezing mechanism 141, a first sensor 130, and a controller 142, the fluid source 110 is used for storing medical fluid; one end of the tube 120 is used for connecting with the fluid source 110, so that the medical liquid can flow out through the other end of the tube 120; the squeezing mechanism 141 comprises a power mechanism 1411 and a roller 1412, the pipeline 120 is installed in cooperation with the roller 1412, and the power mechanism 1411 is used for driving the roller 1412 to move, so that the medical liquid in the pipeline 120 moves towards a preset direction under the action of the roller 1412; wherein the tube 120 is divided into an upstream tube 121 and a downstream tube 122 by the pressing mechanism 141, and the medical liquid flows from the upstream tube 121 to the downstream tube 122; a first sensor 130, disposed on the flow path of the upstream pipeline 121, for sensing the fluid at a first sampling position point of the upstream pipeline 121 to obtain a first flow signal; and a controller 142 in communication with the first sensor 130 and the power mechanism 1411, wherein the method of controlling the pump fluid delivery of the surgical pump in the present embodiment comprises the following steps.

A first flow signal of a first sensor is acquired 201 by a controller.

For a description of the first sensor 130, please refer to the above description, which is not repeated herein.

And 202, controlling the rotating speed of the roller through the power mechanism according to the first flow signal so as to control the flow rate of the medical liquid in the pipeline.

Wherein, step 202, includes: determining a characteristic of the medical fluid from the first flow signal; according to the characteristics of the medical liquid, the rotating speed of the roller 1412 is controlled by the power mechanism 1411 so as to control the flow rate of the medical liquid in the pipeline 120; wherein the characteristic of the medical fluid includes a current level of the medical fluid stored in the fluid source 110, a current density of the medical fluid, a current flow rate of the medical fluid in the tubing 120, or a current flow rate of the medical fluid in the tubing 120.

Wherein said determining a characteristic of the medical fluid from the first flow signal comprises: determining a current level of the medical fluid stored within the fluid source 110 based on the first flow signal; correspondingly, the rotating speed of the roller is controlled through the power mechanism according to the characteristics of the medical liquid, and the method comprises the following steps: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the current liquid level.

In one embodiment, the step of controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the current liquid level comprises: determining the target rotating speed of the roller 1412 according to the current liquid level height; and when the rotation speed of the roller 1412 is different from the target rotation speed, the rotation speed of the roller 1412 is adjusted to the target rotation speed through the power mechanism 1411.

In one embodiment, the step of controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the current liquid level includes: obtaining a preset liquid level of the fluid source 110; if the current liquid level is higher than the preset liquid level, the rotating speed of the roller 1412 is reduced; if the current liquid level is lower than the preset liquid level, increasing the rotation speed of the roller 1412; if the current liquid level height meets the preset liquid level height, the roller 1412 keeps the current rotating speed unchanged.

Wherein said determining a characteristic of the medical fluid from the first flow signal comprises: determining a density of the current medical fluid stored within the fluid source 110 based on the first flow signal; correspondingly, the controlling the rotation speed of the roller 1412 by the power mechanism 1411 according to the characteristics of the medical liquid includes: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the density of the medical fluid at present.

Wherein said determining a characteristic of the medical fluid from the first flow signal comprises: determining a current flow rate or a current flow rate of the medical fluid in the tubing 120 based on the first flow signal; correspondingly, the controlling the rotation speed of the roller 1412 through the power mechanism 1411 according to the characteristics of the medical liquid includes: the rotation speed of the roller 1412 is controlled by the power mechanism 1411 according to the current flow or the current flow rate.

Fig. 7 is another schematic flow chart of a method for controlling infusion of a surgical pump, according to an embodiment of the present application, the method comprising the following steps.

A first flow signal of the first sensor is acquired by the controller 301.

A corresponding fluid within the pipeline is identified based on the first flow signal 302.

Please refer to the above description for the principle of identifying the corresponding fluid in the pipeline according to the first response signal, which is not described herein again.

303, when the first flow signal indicates that the fluid corresponding to the first sampling position point of the pipeline is air, controlling the power mechanism to drive the roller to operate at the first rotation speed. Step 305 is then performed.

304, when the first flow signal indicates that the fluid corresponding to the first sampling position point of the pipeline is the medical liquid, controlling the power mechanism to drive the roller to operate at a second rotating speed, wherein the first rotating speed is greater than the second rotating speed. The second rotating speed is the rotating speed of the roller before the flow rate of the medical liquid in the pipeline is controlled. Step 307 is then performed.

When the wheel is running at the first speed 305, a timer is started.

And 306, after a preset time period, controlling the power mechanism to drive the roller to operate at the second rotating speed. The second rotating speed is the rotating speed of the roller before the flow rate of the medical liquid in the pipeline is controlled.

In the embodiment, the first sensor is used for identifying whether the infusion control system of the medical surgical pump is started in an empty pipe, quick exhaust is realized when the empty pipe is started, the exhaust time is shortened, the exhaust efficiency is improved, normal infusion is performed when water is started, and the operation safety is ensured.

And 307, determining a characteristic of the medical fluid based on the first flow signal, wherein the characteristic of the medical fluid includes a current level of the medical fluid stored in the fluid source, a current density of the medical fluid, a current flow rate of the medical fluid in the tubing, or a current flow rate of the medical fluid in the tubing.

308, controlling the rotating speed of the roller by the power mechanism according to the characteristics of the medical liquid so as to control the flow rate of the medical liquid in the pipeline.

Fig. 8 is a schematic flow chart of a method for controlling an infusion of a surgical pump 100, according to an embodiment of the present application, where the method for controlling an infusion of a surgical pump 100 is applied to the system 100, and the system 100 further includes a second sensor 160, where the second sensor 160 is disposed on a flow path of the downstream line 122 and is configured to sense a fluid at a first sampling position point of the downstream line 122 to obtain a first flow signal. The medical surgical pump fluid delivery control method includes the following steps.

A first flow signal is acquired by the controller for a first sensor, and a second flow signal is acquired for a second sensor 401.

A corresponding fluid at a first sample site in the pipeline is identified from the first flow signal 402 and a corresponding fluid at a second sample site in the pipeline is identified from the second flow signal.

And 403, when the fluid corresponding to the first sampling position point of the first flow signal representation pipeline is air, and the fluid corresponding to the second sampling position point of the second flow signal representation pipeline is air, controlling the power mechanism to drive the roller to run at the first rotation speed. Step 405 is then performed.

404, when the fluid corresponding to the first sampling position point of the first flow signal representation pipeline is medical liquid and the fluid corresponding to the second sampling position point of the second flow signal representation pipeline is medical liquid, controlling the power mechanism to drive the roller to operate at a second rotation speed, wherein the first rotation speed is greater than the second rotation speed.

The second rotating speed is the rotating speed of the roller before the flow rate of the medical liquid in the pipeline is controlled.

405, after the roller runs at the first rotation speed, when the fluid corresponding to the first sampling position point of the first flow signal representation pipeline is medical liquid, and the fluid corresponding to the second sampling position point of the second flow signal representation pipeline is medical liquid, controlling the power mechanism to drive the roller to run at the second rotation speed.

In the embodiment, two sensors, namely a first sensor and a second sensor, are used together to identify whether the infusion control system of the medical surgical pump is started in an empty pipe, and realize quick exhaust when the empty pipe is started, reduce exhaust time, improve exhaust efficiency, perform normal infusion when the infusion control system is started in the presence of water, and ensure operation safety; the use of two sensors can improve the accuracy and the control precision of the controller for controlling the air exhaust and the infusion.

And 406, determining a characteristic of the medical fluid based on the first flow signal, wherein the characteristic of the medical fluid includes a current level of the medical fluid stored in the fluid source, a current density of the medical fluid, a current flow rate of the medical fluid in the tubing, or a current flow rate of the medical fluid in the tubing.

407, controlling the rotation speed of the roller by a power mechanism according to the characteristics of the medical liquid to control the flow rate of the medical liquid in the pipeline.

For example, please refer to the steps executed by the controller, and for other undescribed embodiments of the infusion control method for a surgical pump, please refer to the corresponding contents mentioned above, which are not described herein again. In specific implementation, the specific implementation processes of the above steps and the achieved beneficial effects may refer to the corresponding descriptions in the foregoing embodiments, and for convenience and conciseness of description, no further description is provided herein.

It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions (computer programs) which are stored in a computer-readable storage medium and loaded and executed by a processor, or by related hardware controlled by the instructions (computer programs). To this end, embodiments of the present invention provide a computer-readable storage medium having stored therein a plurality of instructions (computer program) that can be loaded by a processor to perform the steps of any of the methods for controlling infusion of a medical surgical pump provided by embodiments of the present invention. The medical surgical pump in particular practice may include a uterine distention pump, an irrigation aspiration pump, or other types of medical surgical pumps.

Wherein the storage medium may include: read Only Memory (ROM), random Access Memory (RAM), magnetic or optical disks, and the like.

Since the instructions stored in the storage medium can execute the steps in any medical surgical pump infusion control method embodiment provided by the embodiment of the present invention, the beneficial effects that can be achieved by any medical surgical pump infusion control method provided by the embodiment of the present invention can be achieved, and detailed description is omitted here for the sake of detail in the foregoing embodiment.

The above detailed descriptions of the infusion control system of the medical surgical pump, the infusion control method of the medical surgical pump, and the computer readable storage medium provided in the embodiments of the present application are provided, and specific examples are applied herein to illustrate the principles and implementations of the present application, and the above descriptions of the embodiments are only used to help understand the methods and their core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A medical surgical pump infusion control system, comprising:

a fluid source for storing a medical fluid;

one end of the pipeline is used for being connected with the fluid source so that the medical liquid can flow out from the other end of the pipeline;

a controller in communicative connection with the first sensor and the power mechanism, the controller configured to: and controlling the rotating speed of the roller through the power mechanism according to the first flow signal so as to control the flow rate of the medical liquid in the pipeline.

2. The medical surgical pump fluid control system of claim 1, wherein the controller is further configured to:

determining the characteristic of the medical liquid according to the first flow signal, and controlling the rotating speed of the roller through the power mechanism according to the characteristic of the medical liquid, wherein the characteristic of the medical liquid comprises the current liquid level height of the medical liquid stored in the fluid source, the current density of the medical liquid, the current flow rate of the medical liquid in the pipeline, or the current flow rate of the medical liquid in the pipeline.

3. The medical surgical pump fluid control system of claim 2, wherein the controller is further configured to determine a current level of the medical fluid stored in the fluid source based on the first flow signal and to control the rotational speed of the roller via the powered mechanism based on the current level.

4. The medical surgical pump infusion control system of claim 3, wherein the controller is further configured to determine a target rotational speed of the roller based on the current fluid level and adjust the rotational speed of the roller to the target rotational speed via the powered mechanism when the rotational speed of the roller is different from the target rotational speed.

5. The system of claim 3 or 4, wherein the controller is further configured to obtain a correlation between different fluid levels in the fluid source and the rotational speed of the roller, and determine a target rotational speed of the roller corresponding to the current fluid level according to the correlation.

6. The medical surgical pump fluid control system of claim 5, wherein the correlation is obtained by an experimental fit or a computer modeling fit.

7. The medical surgical pump infusion control system of claim 3, wherein the controller is further configured to,

acquiring the preset liquid level height of the fluid source; if the current liquid level height is larger than the preset liquid level height, reducing the rotating speed of the roller; if the current liquid level height is smaller than the preset liquid level height, increasing the rotating speed of the roller; and if the current liquid level height meets the preset liquid level height, the roller keeps the current rotating speed unchanged.

8. The medical surgical pump output fluid control system of claim 3 or 7, wherein the controller is further configured to,

acquiring a preset rotating speed corresponding to the roller under the preset liquid level height;

when the current liquid level height is larger than the preset liquid level height, determining a target compensation rotating speed according to the difference value between the current liquid level height and the preset liquid level height, and reducing the rotating speed of the roller according to the target compensation rotating speed;

and when the target liquid level height is smaller than the preset liquid level height, determining a target compensation rotating speed according to the difference value between the preset liquid level height and the target liquid level height, and increasing the rotating speed of the roller according to the target compensation rotating speed.

9. The medical surgical pump fluid control system of claim 3 or 7, wherein the controller is further configured to,

acquiring the corresponding relation between the liquid level height of the fluid source and the compensation rotating speed of the roller;

when the current liquid level height is larger than a preset liquid level height, determining a target compensation rotating speed of the roller according to the current liquid level height and the corresponding relation, and reducing the rotating speed of the roller according to the target compensation rotating speed;

and when the current liquid level height is smaller than a preset liquid level height, determining a target compensation rotating speed of the roller according to the current liquid level height and the corresponding relation, and increasing the rotating speed of the roller according to the target compensation rotating speed.

10. The medical surgical pump fluid control system of claim 3, 4, or 7, wherein the first sensor comprises a pressure sensor;

the controller is further configured to obtain a pressure value corresponding to the first flow signal, and determine the current level of the fluid source according to the pressure value.

11. The medical surgical pump infusion control system of any one of claims 1 to 3, wherein prior to effecting control of the flow rate of the medical liquid within the tubing, the controller is further configured to control the powered mechanism to drive the roller at a first rotational speed when the first flow signal indicates that the fluid corresponding to the first sampling site of the upstream tubing is air, and to drive the roller at a second rotational speed when the first flow signal indicates that the fluid corresponding to the first sampling site of the upstream tubing is the medical liquid, the first rotational speed being greater than the second rotational speed.

12. The medical surgical pump infusion control system of any one of claims 1 to 3, further comprising a second sensor in communication with the controller, the second sensor being disposed in the flow path of the downstream tubing for sensing the fluid in a second sampling site of the downstream tubing to obtain a second flow signal;

before the realization is right in the pipeline medical liquid's the velocity of flow controls, the controller still is used for, works as first flow signal representation the corresponding fluid of first sampling position point of upstream pipeline is the air, just second flow signal representation the corresponding fluid of second sampling position point of low reaches pipeline is when the air, control power unit is in order to drive the gyro wheel moves under first rotational speed, works as first flow signal representation the corresponding fluid of first sampling position point of upstream pipeline is medical liquid, just second flow signal representation the corresponding fluid of second sampling position point of low reaches pipeline is when medical liquid, control power unit is in order to drive the gyro wheel moves under the second rotational speed, first rotational speed is greater than the second rotational speed.

13. The medical surgical pump infusion control system of claim 12, wherein the controller is further configured to control the rotational speed of the roller via the motive mechanism based on the first flow signal and the second flow signal when controlling the flow rate of the medical fluid within the tubing.

14. The infusion control method of the medical surgical pump is applied to an infusion control system of the medical surgical pump, and the infusion control system of the medical surgical pump comprises a fluid source, a pipeline, an extrusion mechanism, a first sensor and a controller; the fluid source is used for storing medical liquid; one end of the pipeline is used for being connected with the fluid source so that the medical liquid can flow out through the other end of the pipeline; the extrusion mechanism comprises a power mechanism and a roller, the pipeline is installed in a matched mode with the roller, and the power mechanism is used for driving the roller to move so that the medical liquid in the pipeline moves towards a preset direction under the action of the roller; wherein the tubing is divided by the expression mechanism into an upstream tubing and a downstream tubing, the medical liquid flowing from the upstream tubing to the downstream tubing; the first sensor is arranged on the flow path of the upstream pipeline and used for sensing the fluid at a first sampling position point of the upstream pipeline to obtain a first flow signal; the controller is in communication connection with the first sensor and the power mechanism, and the infusion control method of the medical surgical pump comprises the following steps:

the controller acquiring the first flow signal of the first sensor;

15. The method of claim 14, wherein controlling the rotational speed of the roller via the power mechanism based on the first flow signal comprises:

determining a characteristic of the medical liquid from the first flow signal;

controlling the rotating speed of the roller through the power mechanism according to the characteristics of the medical liquid so as to control the flow rate of the medical liquid in the pipeline;

wherein the characteristic of the medical liquid comprises a current level of the medical liquid stored in the fluid source, a current density of the medical liquid, a current flow rate of the medical liquid in the tubing, or a current flow rate of the medical liquid in the tubing.

16. The method of claim 15,

said determining a characteristic of the medical fluid from the first flow signal comprises: determining a current level of the medical fluid stored within the fluid source from the first flow signal;

the rotating speed of the roller is controlled by the power mechanism according to the characteristics of the medical liquid, and the method comprises the following steps: and controlling the rotating speed of the roller through the power mechanism according to the current liquid level height.

17. The method of any of claims 14 to 16, wherein prior to effecting control of the flow rate of the medical fluid in the tubing, the method further comprises:

when the first flow signal represents that the fluid corresponding to the first sampling position point of the upstream pipeline is air, controlling the power mechanism to drive the roller to operate at a first rotating speed;

when the first flow signal represents that the fluid corresponding to the first sampling position point of the upstream pipeline is medical liquid, controlling the power mechanism to drive the roller to operate at a second rotating speed;

wherein the first rotational speed is greater than the second rotational speed.

18. The medical surgical pump infusion control method of any one of claims 14 to 16, further comprising a second sensor communicatively coupled to the controller, the second sensor being disposed in the flow path of the downstream tubing for sensing the fluid at a second sampling location of the downstream tubing to obtain a second flow signal;

before controlling the flow rate of the medical fluid in the tubing is achieved, the method for controlling infusion of a medical surgical pump further comprises:

when the first flow signal represents that the fluid corresponding to the first sampling position point of the upstream pipeline is air and the second flow signal represents that the fluid corresponding to the second sampling position point of the downstream pipeline is air, controlling the power mechanism to drive the roller to operate at a first rotating speed;

when the first flow signal represents that the fluid corresponding to the first sampling position point of the upstream pipeline is the medical liquid, and the second flow signal represents that the fluid corresponding to the second sampling position point of the downstream pipeline is the medical liquid, controlling the power mechanism to drive the roller to operate at a second rotating speed;

wherein the first rotational speed is greater than the second rotational speed.

19. The method of claim 18, further comprising, in effecting control of the flow rate of the medical fluid in the tubing: and controlling the rotating speed of the roller through the power mechanism according to the first flow signal and the second flow signal.

20. A computer-readable storage medium, having stored thereon a computer program adapted to be loaded by a processor to perform the steps of the method of infusion control for a medical surgical pump as defined in any one of claims 14 to 19.