CN112904036A

CN112904036A - Liquid supply system and method thereof

Info

Publication number: CN112904036A
Application number: CN201911218038.5A
Authority: CN
Inventors: 孙娟娟; 王俊
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2021-06-04
Anticipated expiration: 2039-12-03
Also published as: CN112904036B

Abstract

A liquid supply system and a method thereof are provided, wherein a plurality of external liquid storage barrels are connected with cleaning components on a plurality of sample analysis devices by introducing a liquid supply pipeline, internal liquid storage barrels in the sample analysis devices are connected with the cleaning components, and the internal liquid storage barrels in the sample analysis devices are connected with the cleaning components of other sample analysis devices, so that a liquid supply strategy is more flexible, and replacement of barrels for storing cleaning liquid is more convenient.

Description

Liquid supply system and method thereof

Technical Field

The invention relates to a liquid supply system and a method thereof.

Background

The sample analyzer is used for detecting and analyzing specific biological components, chemical substances and the like contained in a sample, and in order to avoid sample cross contamination, a dispensing needle is cleaned after sampling and sample adding are finished, and the dispensing needle can perform next sampling and sample adding actions after cleaning is finished.

An immunoassay device is not taken as an example, and the immunoassay device is generally provided with a cleaning solution for cleaning a needle pipeline to meet the requirements of cleaning a sampling needle and the like. The introduction sources of the cleaning solution are two types: one is connected to a deionized water pipeline in a department room, and the instrument controls a switch valve to realize whether water enters or not according to the test requirement; one is a barrel storing cleaning liquid, the instrument is designed to be provided with the built-in barrel at the beginning to supply the cleaning liquid to the instrument, and when the cleaning liquid in the barrel is exhausted, the instrument alarms to inform a user of replacement.

There are areas where these solutions for cleaning liquid supply are needed to be improved.

Disclosure of Invention

The application provides a liquid supply system and a method thereof.

According to a first aspect, there is provided in an embodiment a liquid supply system comprising:

a plurality of external liquid storage barrels arranged outside the sample analysis device and used for storing cleaning liquid;

the inner liquid storage barrel is arranged inside the sample analysis device and used for storing cleaning liquid; wherein each sample analysis device is provided with at least one of the internal liquid storage barrels;

a liquid supply pipeline for connecting the plurality of external liquid storage barrels with the cleaning components on the plurality of sample analysis devices, connecting the internal liquid storage barrel in the sample analysis device with the cleaning component thereof, and connecting the internal liquid storage barrel in the sample analysis device with the cleaning components of other sample analysis devices; the liquid supply pipeline comprises a plurality of branches, and a valve assembly, a pressure source and a detection unit which are arranged on the branches, wherein the valve assembly is used for opening or closing the branches, the pressure source is used for generating the pressure of liquid flowing in the branches, and the detection unit is used for detecting the liquid conditions on the external liquid storage barrel and the internal liquid storage barrel;

and the processor is used for controlling the liquid supply to the sample analysis device.

In one embodiment, the processor controls the feeding of the liquid to the sample analyzer, comprising:

the processor preferentially controls the external liquid storage barrel to supply liquid to the sample analysis device in the test state.

when the external liquid storage barrel is in an empty state, the processor controls the internal liquid storage barrels of various analysis devices to supply liquid.

In one embodiment, the processor controls an internal reservoir of the assay device to supply a liquid, comprising:

the processor preferentially controls the sample analysis device in a test state to supply liquid through the internal liquid storage barrel of the sample analysis device.

In one embodiment, the processor controls the internal liquid storage barrel of the various analysis devices to supply liquid, and further comprises:

when the internal liquid storage barrel of the sample analysis device in the test state is in an empty state, the processor determines whether the internal liquid storage barrels of other sample analysis devices can be used for supplying liquid to the sample analysis device in the test state.

In one embodiment, the processor determines whether an internal reservoir of another sample analyzer is available to supply the sample analyzer under test, comprising:

the processor determining whether there is an idle sample analysis device;

and if the sample analysis device exists, the processor controls an internal liquid storage barrel of the idle sample analysis device to supply liquid to the sample analysis device in the test state.

the processor judges whether a sample analysis device which is idle and still in an idle state within a preset time period exists;

and if the sample analysis device exists, the processor controls the internal liquid storage barrel of the sample analysis device to supply liquid to the sample analysis device in the test state.

In one embodiment, the processor determines whether the sample analyzer is still idle for a predetermined period of time by counting the historical test time of the sample analyzer.

the processor determining whether there is a sample analyzer having a lower priority than the sample analyzer in the test state;

and if the sample analysis device exists, the processor controls the internal liquid storage barrel of the sample analysis device with low priority to supply liquid to the sample analysis device in the test state.

In one embodiment, the processor determines the priority of the sample analysis device based on the sample priority.

In one embodiment, the processor determines a priority of the sample analysis device based on the sample priority, comprising: the more samples of the sample analysis device that are of high sample priority, the higher the priority of the sample analysis device.

In one embodiment, the processor determines the priority of the sample analysis device based on the item priority.

In one embodiment, the processor determines a priority of the sample analysis device based on the item priority, comprising: the more items of the sample analyzer having a high item priority, the higher the priority of the sample analyzer.

In one embodiment, the processor determines a priority of the sample analysis device based on the item priority, comprising: the more items in the preset set of items in the sample analysis device, the higher the priority of the sample analysis device.

In one embodiment, the processor determines whether there is an external liquid storage barrel in a full state before determining whether there is any internal liquid storage barrel of another sample analyzer that can be used to supply liquid to the sample analyzer in a test state;

and if the sample analysis device is in the full state, the processor controls the external liquid storage barrel in the full state to supply liquid to the sample analysis device in the test state.

In one embodiment, in the process that the processor controls the internal liquid storage barrels of other sample analysis devices to supply liquid to the sample analysis device in the test state, when it is determined that the external liquid storage barrel in the full state exists, the processor switches the external liquid storage barrel in the full state to supply liquid to the sample analysis device in the test state.

In one embodiment, in the process that the processor controls the internal liquid storage barrels of other sample analysis devices to supply liquid to the sample analysis device in the test state, when the internal liquid storage barrel of the sample analysis device in the test state is judged to be in a full state again, the controller switches the internal liquid storage barrel in the full state to supply liquid to the sample analysis device in the test state.

According to a second aspect, an embodiment provides a method of providing a liquid supply system for supplying liquid to a plurality of sample analysis devices; the liquid supply system comprises an external liquid storage barrel and an internal liquid storage barrel which are used for storing cleaning liquid; the external liquid storage barrel is arranged outside the sample analysis device; the external liquid storage barrel is connected with the cleaning components on the plurality of sample analysis devices; the inside liquid storage barrel sets up in sample analysis device's inside, and wherein every sample analysis device all is provided with one at least inside liquid storage barrel, inside liquid storage barrel among the sample analysis device links to each other rather than washing the subassembly, and inside liquid storage barrel among the sample analysis device still links to each other with other sample analysis device's washing subassembly, the method includes:

and controlling the external liquid storage barrel and the internal liquid storage barrel to supply liquid to the sample analysis device.

In one embodiment, the controlling the external liquid storage barrel and the internal liquid storage barrel to supply liquid to the sample analyzer includes:

and preferentially controlling the external liquid storage barrel to supply liquid to the sample analysis device in the test state.

when the external liquid storage barrel is in an empty state, the internal liquid storage barrels of various analysis devices are controlled to supply liquid.

In one embodiment, the method for controlling the internal liquid storage barrel of the various analysis devices to supply liquid comprises:

and preferentially controlling the sample analysis device in the test state to supply liquid through the internal liquid storage barrel of the sample analysis device.

In one embodiment, the method for controlling the internal liquid storage barrel of the various analysis devices to supply liquid further includes:

when the internal liquid storage barrel of the sample analysis device in the test state is in an empty state, whether the internal liquid storage barrels of other sample analysis devices can be used for supplying liquid to the sample analysis device in the test state is determined.

In one embodiment, the determining whether the internal reservoir of the other sample analyzer is available for feeding the sample analyzer under test comprises:

judging whether an idle sample analysis device exists or not;

and if the sample analysis device exists, controlling an internal liquid storage barrel of the idle sample analysis device to supply liquid to the sample analysis device in the test state.

judging whether a sample analysis device which is idle and still in an idle state within a preset time period exists or not;

and if the sample analysis device exists, controlling an internal liquid storage barrel of the sample analysis device to supply liquid to the sample analysis device in the test state.

In one embodiment, whether the sample analysis device is still in an idle state in a preset time period is judged by counting the historical test time of the sample analysis device.

determining whether or not there is a sample analyzer having a lower priority than the sample analyzer in the test state;

and if the sample analysis device exists, controlling the internal liquid storage barrel of the sample analysis device with low priority to supply liquid to the sample analysis device in the test state.

In one embodiment, the priority of the sample analysis device is determined according to the sample priority.

In one embodiment, the prioritizing the sample analysis devices according to sample priorities comprises: the more samples of the sample analysis device that are of high sample priority, the higher the priority of the sample analysis device.

In one embodiment, the sample analysis device is prioritized according to item priority.

In one embodiment, the prioritizing the sample analysis devices according to item priority comprises: the more items of the sample analyzer having a high item priority, the higher the priority of the sample analyzer.

In one embodiment, the prioritizing the sample analysis devices according to item priority comprises: the more items in the preset set of items in the sample analysis device, the higher the priority of the sample analysis device.

In one embodiment, before determining whether the internal liquid storage barrel of the other sample analysis device can be used for supplying liquid to the sample analysis device in the test state, it is determined whether the external liquid storage barrel is in a full state;

and if so, controlling the external liquid storage barrel in the full state to supply liquid to the sample analysis device in the test state.

In one embodiment, in the process of controlling the internal liquid storage barrels of the other sample analysis devices to supply liquid to the sample analysis device in the test state, when it is determined that the external liquid storage barrel in the full state exists, the external liquid storage barrel in the full state is switched to supply liquid to the sample analysis device in the test state.

In one embodiment, in the process of controlling the internal liquid storage barrels of the other sample analysis devices to supply liquid to the sample analysis device in the test state, when it is determined that the internal liquid storage barrel of the sample analysis device in the test state is full, the internal liquid storage barrel in the full state is switched to supply liquid to the sample analysis device in the test state.

According to a third aspect, an embodiment provides a computer readable storage medium comprising a program executable by a processor to implement a method as described in any of the embodiments herein.

According to the liquid supply system, the liquid supply method and the computer-readable storage medium of the embodiment, the plurality of external liquid storage barrels are connected with the cleaning components on the plurality of sample analysis devices by introducing the liquid supply pipeline, the internal liquid storage barrel in the sample analysis device is connected with the cleaning components, and the internal liquid storage barrel in the sample analysis device is connected with the cleaning components of other sample analysis devices, so that the liquid supply strategy is more flexible, and the replacement of the barrel for storing the cleaning liquid is more convenient.

Drawings

FIG. 1 is a schematic diagram of a liquid supply system according to an embodiment;

fig. 2(a) is a perspective view of a cart for placing an external reservoir in one embodiment, and fig. 2(b) is another perspective view of the cart for an external reservoir;

FIG. 3 is a schematic view of a liquid supply system according to another embodiment;

FIG. 4 is a schematic illustration of a portion of a liquid supply system in accordance with an exemplary embodiment;

FIG. 5 is a schematic view of a portion of a liquid supply system according to another embodiment;

FIG. 6 is a schematic illustration of a portion of a liquid supply system in accordance with yet another embodiment;

FIG. 7 is a schematic view of a portion of a liquid supply system in accordance with yet another embodiment;

FIG. 8 is a schematic view of a liquid supply system according to another embodiment;

FIG. 9 is a flow chart of a method of a liquid supply system of an embodiment;

FIG. 10 is a flow chart of a method of a liquid supply system according to another embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The sample analysis device has the advantages that the problem of the exhausted cleaning solution is not worried about by connecting the deionized water pipeline in the department, but the disadvantage is that the cleaning solution can affect the sample detection, because microorganisms in the water supplied by the deionized water pipeline can interfere with the sample detection, and particularly for some items with high detection sensitivity, the immunoassay item is typical. Therefore, the current sample analysis device generally adopts a mode of internally arranging a cleaning liquid barrel, namely, the closed cleaning liquid barrel produced by a manufacturer is arranged in the device and is connected with a cleaning pipeline of an instrument; correspondingly, because adopt the mode of barreling, consequently need accomplish in the bucket when the washing liquid runs out and in time change new washing liquid bucket, especially when the test ratio of instrument is great, need pay attention to constantly and change the washing liquid bucket many times, this can consume a large amount of time and energy, if change untimely, still can make the instrument pause test, lead to the instrument idle.

This application is keeping under the condition of the inside stock solution bucket of this analytical equipment of various, still introduce outside stock solution bucket, supply liquid to a plurality of sample analytical equipment, and through the improvement of liquid route, make the inside stock solution bucket of a sample analytical equipment also can supply liquid for other sample analytical equipment, from the perspective of whole confession liquid, there is this confession liquid source of outside stock solution bucket, there is this confession liquid source of the inside stock solution bucket of each sample analytical equipment, this confession liquid source of outside stock solution bucket can supply for arbitrary one required sample analytical equipment, inside stock solution bucket also can only follow the sample analytical equipment who answers itself, can also supply other sample analytical equipment, accomplish like this as far as possible to make sample analytical equipment can not lead to idle because of the washing liquid exhausts, simultaneously owing to introduce outside stock solution bucket, also seamless and conveniently change the washing liquid bucket. In addition, aiming at the integral liquid supply system, a new liquid supply scheme is provided for controlling the specific liquid supply strategies of the external liquid storage barrel and the internal liquid storage barrel.

In some embodiments of the present application, a liquid supply system is provided. The liquid supply system can supply liquid for a plurality of sample analysis devices. In this application, the sample analysis device may be a biochemical analyzer, an immunoassay analyzer, a blood cell analyzer, a special protein analyzer, a glycated hemoglobin analyzer, a blood type analyzer, or the like. The liquid supply system is explained below.

Referring to fig. 1, in some embodiments, the liquid supply system may include a plurality of external liquid storage barrels 10, internal liquid storage barrels 20, liquid supply lines 30, and a processor 40, which will be described in detail below.

The external liquid storage barrel 10, as the name implies, is disposed outside the sample analysis device and stores a cleaning liquid. The number of the external reservoir 10 may be plural. To facilitate replacement and placement of the external reservoir 10, some embodiments may customize the cart specifically for the external reservoir. For example, fig. 2 is an example, and the bottom of the cart may be provided with wheels and foot supports to support the cart for movement and parking. The space of the department is mainly used for storing sample analysis devices and the like, and is more expensive, so that the trolley can be designed into a multilayer structure, the occupied area is reduced, the trolley is designed into a two-layer step type structure, and an external liquid storage barrel 10 can be placed on the step surface of each step. FIG. 2(a) is a perspective view of the cart without the external liquid storage tank 10; fig. 2(b) is a perspective view of the cart with the external liquid storage tank 10 loaded.

The internal reservoir 20, as the name implies, is disposed inside the sample analyzer and contains a cleaning fluid. Typically, each sample analysis device is provided with at least one internal reservoir 20. In some embodiments, the sample analyzer may be designed to have two inner liquid storage barrels 20, and the two inner liquid storage barrels 20 may be used as a backup for each other, that is, when one of the inner liquid storage barrels 20 is used up, the user may switch to the other inner liquid storage barrel 20 for use, and during this process, the user may replace the used inner liquid storage barrel 20.

The liquid supply pipeline 30 is used for connecting the external liquid storage barrel 10 and the internal liquid storage barrel 20 with the sample analysis device; the outer reservoir 10 and the inner reservoir 20 supply the sample analysis device with a cleaning solution through a supply line 30. In some embodiments, a supply line 30 connects each external reservoir 10 to a cleaning assembly on a variety of analytical devices; thus, the external liquid storage barrel 10 can supply liquid for various analysis devices through the liquid supply pipeline 30. In some embodiments, the supply line 30 connects the internal reservoir 20 of the sample analysis device itself to its washing assembly; thus, the internal reservoir 20 can supply liquid to its own sample analyzer via the liquid supply line 30. An important feature of the fluid supply line 30 of the present application is that the internal reservoir 20 of one sample analyzer is also connected to other sample analyzers. Thus, in some embodiments, the supply line 30 connects the internal reservoir 20 in the sample analysis device with the cleaning components of other sample analysis devices; taking two sample analyzers a and B as an example, the internal liquid storage tank 20 of the sample analyzer a itself can supply liquid to the sample analyzer B through the liquid supply pipe 30.

It should be noted that the washing assembly referred to herein, i.e., the component for washing some structures on the sample analyzer, for example, the washing assembly may be a washing cell or the like, and the washing assembly washes a dispensing needle or the like, typically; the separate injection needle comprises a sample needle, a reagent needle, a cleaning needle and the like on the sample analyzer, and after the sample needle, the reagent needle and the cleaning needle finish sampling or sample adding and other actions, cleaning treatment is needed to be carried out for next sampling or sample adding and the like, so that cross contamination is avoided.

Some of the descriptions of the supply line 30 are provided above. The specific fluid path structure of the fluid supply line 30 is various, and in some embodiments, referring to fig. 3, the fluid supply line 30 includes a plurality of branches, and a valve assembly 31, a pressure source 32 and a detection unit 33 disposed on the branches; the valve assembly 31 is used to open or close the branch, the pressure source 32 is used to generate pressure of the liquid flowing in the branch, and the detection unit 33 is used to detect the liquid condition on the external and

internal reservoirs

10 and 20.

The liquid supply line 30 will be described below by way of several specific line configurations.

Referring to fig. 4 and 5, there are shown a schematic view of a portion of the liquid supply line 30, which can connect the internal liquid storage barrel 20 of the sample analyzer with its cleaning component.

The piping structure shown in fig. 4 has two inner liquid storage barrels 20, and it should be understood that the number of the inner liquid storage barrels 20 is not limited herein, and in some examples, the number of the inner liquid storage barrels 20 may be one, three or more. A solenoid valve SV01 is provided on the branch connecting the inner liquid storage barrel 20-1 with one end of the three-way pipe, and likewise a solenoid valve SV02 is provided on the branch connecting the inner liquid storage barrel 20-2 with the other end of the three-way pipe, and a branch for connecting the last end of the three-way pipe to the washing assembly of the sample analysis device, on which branch a liquid inlet pump P01 and a detector SE01, such as a bubble detector, are provided. The processor 40 controls to open the electromagnetic valve SV01, close the electromagnetic valve SV02 and control the liquid inlet pump P01 to work, so that the cleaning liquid can flow from the inner liquid storage barrel 20-1 to the cleaning assembly, and in the liquid supply process, if the detector SE01 detects that bubbles exist, which indicates that the residual amount of the inner liquid storage barrel 20-1 is substantially zero, the liquid supply barrel can be switched at the moment, specifically, the processor 40 controls to close the electromagnetic valve SV01 and open the electromagnetic valve SV02, so that the cleaning liquid can flow from the inner liquid storage barrel 20-2 to the cleaning assembly, and a user can replace the inner liquid storage barrel 20-1 in the process.

Compared with the pipeline structure of fig. 4, the pipeline structure shown in fig. 5 further includes a buffer container 34, two liquid level detecting floats FS01 and FS02 may be disposed in the buffer container 34, the liquid level detecting float FS01 is a high-level float, i.e., closer to the top end of the buffer container 34 and farther from the bottom end of the buffer container 34, and the liquid level detecting float FS02 is a low-level float, i.e., farther from the top end of the buffer container 34 and closer to the bottom end of the buffer container 34; therefore, the liquid level detecting float FS01 is disposed above the liquid level detecting float FS02, and the liquid level detecting float FS02 is disposed below the liquid level detecting float FS 01. The processor 40 can control the feed depending on the state of the two floats FS01 and FS 01. For example, at the beginning, the processor 40 may control the open solenoid valve SV01, the close solenoid valve SV02 and the control liquid feed pump P01 to operate, the cleaning liquid flows from the pipeline to the buffer container 34, as the liquid in the buffer container 34 rises continuously, when the liquid level detection float FS01 contacts the liquid level, the processor 40 may control the close solenoid valve SV01, as the sample analyzer consumes the cleaning liquid, the liquid level detection float FS01 will be disengaged from the liquid level first, then the liquid level detection float FS02 will be disengaged from the liquid level, at this time, the solenoid valve SV01 is reopened, the buffer container 34 is replenished until the liquid level detection float FS01 contacts the liquid level again, and if the processor 40 determines that the liquid level detection float FS01 is empty during the liquid supply of any one of the internal liquid storage tanks 20, the liquid supply is switched to another internal liquid storage tank 20 by opening and closing the corresponding solenoid valve.

In the sample analysis device, each position for placing the inner liquid storage barrel 20 can be provided with a liquid storage barrel detector and an indicator light, when the liquid storage barrel detector detects that the inner liquid storage barrel 20 is placed in, the processor 40 refreshes that the residual amount of the inner liquid storage barrel 20 corresponding to the position is full, and the indicator light is off; when the processor 40 controls the liquid supply of a certain internal liquid storage barrel 20, the indicator light is on to indicate that the barrel is in use; when the processor 40 determines that the barrel is empty, for example, during the liquid supply process of the internal liquid storage barrel 20, the detector SE01 detects that there is a bubble, then the processor 40 controls the indicator light to flash, which indicates that the corresponding internal liquid storage barrel 20 is empty, to remind the user to replace the barrel.

Referring to fig. 6 and 7, there are shown partial schematic structural views of the liquid supply line 30, which can connect the internal liquid storage barrel 20 of the sample analyzer with its cleaning component, and can also connect the external liquid storage barrel 10 with various cleaning components of the analyzer.

Referring to fig. 6, fig. 6 shows a schematic diagram of liquid supply from external liquid storage tanks 10-1, 10-2, …, and 10-N to two sample analyzers, wherein solenoid valves SV11, SV12, …, and SV1N are respectively used to control branches corresponding to external liquid storage tanks 10-1, 10-2, …, and 10-N. When internal liquid supply is needed, the electromagnetic valves SV11, SV12, … and SV1N are all closed, and when external liquid supply is needed, the corresponding electromagnetic valve for controlling the external liquid storage barrel 10 is opened, for example, when the electromagnetic valves SV11 and SV21 are opened, and all other electromagnetic valves are closed, the external liquid supply is carried out by the external liquid storage barrel 10-1.

Compared with the pipeline structure of fig. 6, the pipeline structure shown in fig. 7 further includes a buffer container 34 common to the external liquid storage barrels 10, and correspondingly, a liquid inlet pump P02 and a detector SE02, such as a bubble detector, are disposed on a branch of the buffer container 34 connected to the external liquid storage barrels 10, and the buffer container 34 used for the external liquid storage barrels 10 is similar to the working principle of the buffer container 34 built in the present analysis apparatus, such as when the liquid inlet stops, and the like, and thus, the description thereof is omitted. The processor 40 can make the cleaning liquid in the buffer container 34 for the external liquid storage barrel 10 externally supply the cleaning liquid to the upper set of cleaning assemblies in fig. 7 by opening the electromagnetic valve SV21 and controlling the liquid inlet pump P02 to work, similarly, the processor 40 can make the cleaning liquid in the buffer container 34 for the external liquid storage barrel 10 externally supply the cleaning liquid to the lower set of cleaning assemblies in fig. 7 by opening the electromagnetic valve SV22 and controlling the liquid inlet pump P02 to work, and when the cleaning liquid in the buffer container 34 for the external liquid storage barrel 10 is insufficient, the electromagnetic valve of the corresponding external liquid storage barrel 10 is opened to supplement the cleaning liquid to the buffer container 34.

Referring to fig. 8, a partial structure of the liquid supply line 30 is schematically shown, in which the internal liquid storage barrel 20 of the sample analyzer can be connected to the cleaning assembly thereof, the external liquid storage barrel 10 can be connected to the cleaning assemblies of various sample analyzers, and the internal liquid storage barrel 20 of one sample analyzer can be connected to the cleaning assembly of another sample analyzer. Through the branch road of feed liquor pump P03 place, can realize that the washing liquid of buffer container 34 in the lower right corner carries out the effect that supplies liquid to buffer container 34 in the upper right corner, thereby finally realize the purpose of being connected the inside liquid storage bucket 20 of a sample analytical equipment and another sample analytical equipment's washing subassembly, similarly, through the branch road of feed liquor pump P04 place, can realize that the washing liquid of buffer container 34 in the upper right corner carries out the effect that supplies liquid to buffer container 34 in the lower right corner, thereby finally realize the purpose of being connected the inside liquid storage bucket 20 of a sample analytical equipment and another sample analytical equipment's washing subassembly. In order to enhance the stability and speed of the flowing of the cleaning liquid during the liquid supply, an inlet pump P05 and an inlet pump P06 can be respectively arranged on the branches as shown in the figure.

As described above, every position of placing inside liquid storage bucket 20 can all be provided with the liquid storage bucket and have or not detector and pilot lamp, and similarly, every position of placing outside liquid storage bucket 10 can all be provided with the liquid storage bucket and have or not detector and pilot lamp, and the liquid storage bucket of each outside liquid storage bucket 10 has or not detector and pilot lamp, and the working process and the principle that have or not detector and pilot lamp with the liquid storage bucket of inside liquid storage bucket 20 are similar, no longer describe herein.

It should be noted that the specific implementation structure of the liquid supply line 30 can be various, and the above fig. 4 to 8 are just a few examples. The solenoid valves referred to in this text belong to the valve assembly 31, the intake pumps to the pressure source 32, the detectors and the level detecting floats to the detecting unit 33; the processor 40 controls the opening and closing of each solenoid valve in the valve assembly 31 and the operation of each liquid feeding pump according to the detection structure or signal of the detection unit 33, so as to control the liquid feeding to the sample analyzer, for example, which specific outer liquid storage barrel 10 and which specific inner liquid storage barrel 20 are used for which specific cleaning assembly of the sample analyzer.

One solution supply strategy is to preferentially control the external solution storage barrel 10 to supply solution to the cleaning components of various sample analyzers, and to supply solution to the cleaning components of the sample analyzers by the internal solution storage barrel 20 of each sample analyzer after the external solution storage barrel 10 is in an empty state, and to see whether the internal solution storage barrels 20 of other sample analyzers can be controlled to supply solution if the internal solution storage barrels 20 of the sample analyzers are consumed.

In some embodiments, therefore, the processor 40 preferentially controls the external liquid storage tank 10 to supply the liquid to the sample analyzer under test. This is the case for external supply, and when each external reservoir 10 is empty, the internal supply is switched.

Thus, in some embodiments, when the outer liquid storage barrel 10 is empty, which is understood to mean that all of the outer liquid storage barrels 10 are empty, the processor 40 controls the inner liquid storage barrel of each sample analyzer to supply liquid. Specifically, in some embodiments, the processor 40 controlling the internal reservoir of each sample analysis device to supply liquid comprises: the processor 40 preferably controls the sample analyzer under test to supply liquid through its own internal reservoir 20.

In the internal normal liquid supply process, the internal liquid storage barrel 20 of the sample analysis device can be continuously consumed, when the internal liquid storage barrel 20 of the sample analysis device is consumed, if the external liquid storage barrel 10 is replaced by a new one, the sample analysis device which consumes the internal liquid storage barrel 20 can be switched to supply liquid by the external liquid storage barrel 10, otherwise, when the internal liquid storage barrel 20 of the sample analysis device is consumed, if the external liquid storage barrel 10 is still empty, namely, not replaced by a new one in time, the internal emergency liquid supply is required, namely, the liquid is supplied by the internal liquid storage barrels of other sample analysis devices.

Thus, in some embodiments, when the internal liquid storage barrel 20 of the sample analyzer in the testing state is empty, which is understood to mean that all internal liquid storage barrels 20 of the sample analyzer are empty, the processor 40 determines whether any internal liquid storage barrel 20 of another sample analyzer can be used for supplying liquid to the sample analyzer in the testing state; for the sake of convenience of discussion, the sample analyzer that handles the test state is not named sample analyzer a. In some embodiments, the processor 40 determines whether there is an idle sample analyzer, and if so, the processor 40 controls the internal reservoir 20 of the idle sample analyzer to supply liquid to the sample analyzer A under test. In some embodiments, the processor 40 may also determine whether there is a sample analyzer that is idle and still idle for a preset time period, and if so, the processor controls an internal liquid storage tank of the sample analyzer to supply liquid to the sample analyzer a in the test state. It is understood that, according to the state of the sample analyzer itself, it can be determined whether it is idle or in the testing process, and for the idle sample analyzer, if it is determined whether it is still idle for a preset period of time, for example, the next 1 hour, it can be estimated by counting the historical data of the sample analyzer, for example, if it is 10 am, if it is usually started to test at 2 pm and it is idle before, it is determined that it is still idle for the next 1 hour; accordingly, the processor 40 may determine whether the sample analysis device is still in the idle state for a preset time period by counting the historical test time of the sample analysis device.

The above is an example of controlling the supply of liquid from the internal reservoir 20 of an empty sample analyzer to a sample analyzer in another test state. In some examples, the liquid supply may be switched from the priority of the sample analyzer, that is, when the internal emergency liquid supply is required, the low-priority sample analyzer supplies liquid to the high-priority sample analyzer which has been exhausted from the internal liquid tank 20. Thus, in some embodiments, the processor 40 determines whether there is a sample analysis device of lower priority than the sample analysis device a in the test state; if the sample analyzer B exists, for example, designated as the sample analyzer B, the processor 40 controls the internal liquid storage tank of the sample analyzer B with the lower priority to supply the sample analyzer a in the test state, and it is understood that the sample analyzer B may be in an idle state or in a test state.

The priority of the sample analysis device may be determined in a number of ways, which may be done according to actual requirements. For example, in some embodiments, the processor 40 may determine the priority of the sample analysis device based on the sample priority, with the more samples of the sample analysis device that are of high sample priority, the higher the priority of the sample analysis device. Sample priority is a concept commonly used in the art, and typically, the sample priority may be determined according to the type of the sample, which may generally include emergency and routine, etc., and the priority of the emergency sample is higher than that of the routine sample. For another example, in some embodiments, the processor 40 may determine the priority of the sample analysis device according to the item priority, and the priority of the sample analysis device is higher the more items of the sample analysis device with high item priority, or the priority of the sample analysis device is higher the more items of the sample analysis device in the preset set of items. For item priorities, which are a type of sample priority, a technician or user may set different items to different priorities.

The above are some illustrations of internal emergency liquid supply.

As described above, if the outer liquid storage tank 10 is replaced before switching to the inner emergency liquid supply, the switching to the outer liquid storage tank is performed without switching to the inner emergency liquid supply. Therefore, in some embodiments, the processor 40 determines whether there is an external liquid storage barrel 10 in a full state before determining whether there is any internal liquid storage barrel of another sample analyzer that can be used to supply liquid to the sample analyzer a in a test state, and if so, the processor 40 controls the external liquid supply, for example, controls the external liquid storage barrel 10 in a full state to supply liquid to the sample analyzer a in a test state.

In addition, in the internal emergency liquid supply process, if the external liquid storage barrel 20 is judged to be replaced, the internal emergency liquid supply is switched to the external liquid supply. Therefore, in some embodiments, when the processor 40 determines that there is a full external liquid storage barrel 10 in the process of controlling the internal liquid storage barrel 20 of another sample analyzer to supply liquid to the sample analyzer a under test, the processor 40 switches the full external liquid storage barrel 10 to supply liquid to the sample analyzer a under test.

In addition, during the internal emergency liquid supply process, if the internal liquid storage barrel of the sample analysis device which is supplied with the internal emergency liquid is replaced again, the sample analysis device is switched back to the internal normal liquid supply, namely, the sample analysis device is supplied with the internal liquid storage barrel 20 by itself. Therefore, in some embodiments, when the processor 40 controls the internal liquid storage barrel of another sample analyzer to supply liquid to the sample analyzer a under test, and the internal liquid storage barrel 20 of the sample analyzer a under test is determined to be full, the controller 40 switches the internal liquid storage barrel 20 under full state to supply liquid to the sample analyzer a under test.

It will be appreciated that if the outer reservoir 10 and its own inner reservoir 20 are replaced simultaneously during the internal emergency feeding of the sample analysis device, the sample analysis device is preferably fed from the outer reservoir 10.

The above are some of the schemes and strategies for liquid supply by liquid supply systems.

In some embodiments, a method of a liquid supply system for supplying liquid to a plurality of sample analyzers is also disclosed; the liquid supply system comprises an external liquid storage barrel 10 and an internal liquid storage barrel 20 which are used for storing cleaning liquid; an external reservoir 10 is provided outside the sample analysis device; the external liquid storage barrel 10 is connected with the cleaning components on the plurality of sample analysis devices; the internal liquid storage barrel 20 is arranged inside the sample analysis device, wherein each sample analysis device is at least provided with one internal liquid storage barrel 20, the internal liquid storage barrel 20 in the sample analysis device is connected with a cleaning component thereof, and the internal liquid storage barrel 20 in the sample analysis device is also connected with the cleaning components of other sample analysis devices; the liquid supply system may typically be a liquid supply system as disclosed above.

In some embodiments, a method of a liquid supply system includes controlling an outer liquid storage barrel 10 and an inner liquid storage barrel 20 to supply liquid to a sample analysis device; for example, the external liquid storage barrel 10 is controlled to supply liquid to the sample analyzer, for example, the internal liquid storage barrel 20 is controlled to supply liquid to the sample analyzer itself, and for example, the internal liquid storage barrel 20 of the sample analyzer 10 is controlled to supply liquid to other sample analyzers 10. This will be explained in detail below.

Referring to FIG. 9, in some embodiments, a method of a liquid supply system includes steps 100 through 200.

Step 100: and the external liquid storage barrel 10 is preferentially controlled to supply liquid to the sample analysis device in the test state.

Step 200: when the external liquid storage barrel is in an empty state, which is understood to mean that all the external liquid storage barrels 10 are in an empty state, the internal liquid storage barrels of the various analysis devices are controlled to supply liquid.

Specifically, referring to fig. 10, step 200 may include step 210 and step 220.

Step 210: and preferentially controlling the sample analysis device in the test state to supply liquid through the internal liquid storage barrel of the sample analysis device.

Step 220: when the internal liquid storage barrel of the sample analysis device in the test state is in an empty state, whether the internal liquid storage barrels of other sample analysis devices can be used for supplying liquid to the sample analysis device in the test state is determined.

In the process of performing the internal normal liquid supply in step 210, the internal liquid storage barrel 20 of the sample analyzer itself is continuously consumed, when the internal liquid storage barrel 20 of the sample analyzer itself is consumed, if the external liquid storage barrel 10 is replaced with a new one at this time, the sample analyzer which has consumed the internal liquid storage barrel 20 may be switched to supply liquid from the external liquid storage barrel 10, otherwise, when the internal liquid storage barrel 20 of the sample analyzer itself is consumed, if the external liquid storage barrel 10 is still empty at this time, that is, not replaced with a new one in time, the internal emergency liquid supply is required, that is, step 220 is performed, and the internal liquid storage barrels of other sample analyzers are used to supply liquid.

Therefore, in some embodiments, when the internal liquid storage barrel 20 of the sample analyzer in the testing state is empty, which is understood to mean that all the internal liquid storage barrels 20 of the sample analyzer are empty, step 220 determines whether any internal liquid storage barrels 20 of other sample analyzers can be used for supplying liquid to the sample analyzer in the testing state; for the sake of convenience of discussion, the sample analyzer that handles the test state is not named sample analyzer a. In some embodiments, step 220 determines whether there is an idle sample analyzer, and if so, step 220 controls the internal liquid storage barrel 20 of the idle sample analyzer to supply liquid to the sample analyzer a under test. In some embodiments, step 220 may also determine whether there is a sample analyzer that is idle and still idle for a preset time period, and if so, the processor controls the internal liquid storage tank of the sample analyzer to supply liquid to the sample analyzer a in the test state. It is understood that, according to the state of the sample analyzer itself, it can be determined whether it is idle or in the testing process, and for the idle sample analyzer, if it is determined whether it is still idle for a preset period of time, for example, the next 1 hour, it can be estimated by counting the historical data of the sample analyzer, for example, if it is 10 am, if it is usually started to test at 2 pm and it is idle before, it is determined that it is still idle for the next 1 hour; therefore, step 220 may determine whether the sample analyzer is still in the idle state for a preset time period by counting the historical test time of the sample analyzer.

The above is an example of controlling the supply of liquid from the internal reservoir 20 of an empty sample analyzer to a sample analyzer in another test state. In some examples, the liquid supply may be switched from the priority of the sample analyzer, that is, when the internal emergency liquid supply is required, the low-priority sample analyzer supplies liquid to the high-priority sample analyzer which has been exhausted from the internal liquid tank 20. Thus, in some embodiments, step 220 determines whether there is a sample analysis device of lower priority than sample analysis device a in the test state; if the sample analyzer B is present, for example, designated as the sample analyzer B, the step 220 controls the internal reservoir of the sample analyzer B with the lower priority to supply the sample analyzer A in the testing state, and it is understood that the sample analyzer B may be in an idle state or in a testing state.

The priority of the sample analysis device may be determined in a number of ways, which may be done according to actual requirements. For example, in some embodiments, the priority of the sample analysis device may be determined according to the sample priority, with the more samples of high sample priority in the sample analysis device, the higher the priority of the sample analysis device. Sample priority is a concept commonly used in the art, and typically, the sample priority may be determined according to the type of the sample, which may generally include emergency and routine, etc., and the priority of the emergency sample is higher than that of the routine sample. For another example, in some embodiments, the priority of the sample analyzer may be determined according to the item priority, and the priority of the sample analyzer is higher when more items with high item priority are in the sample analyzer, or the priority of the sample analyzer is higher when more items in the preset item set are in the sample analyzer. For item priorities, which are a type of sample priority, a technician or user may set different items to different priorities.

The above is some description of the step 220 for internal emergency liquid supply.

As described above, if the outer liquid storage tank 10 is replaced before switching to the inner emergency liquid supply, the switching to the outer liquid storage tank is performed without switching to the inner emergency liquid supply. Therefore, in some embodiments, step 220 determines whether there is an external liquid storage barrel 10 in a full state before determining whether there is any internal liquid storage barrel of another sample analyzer that can be used for supplying liquid to the sample analyzer a in a test state, and if so, step 220 controls the external liquid supply, for example, controls the external liquid storage barrel 10 in a full state, and supplies liquid to the sample analyzer a in a test state.

In addition, in the internal emergency liquid supply process, if the external liquid storage barrel 20 is judged to be replaced, the internal emergency liquid supply is switched to the external liquid supply. Therefore, in some embodiments, in the process of controlling the internal liquid storage barrels 20 of other sample analyzers to supply liquid to the sample analyzer a under test, if it is determined that there is a full external liquid storage barrel 10, the full external liquid storage barrel 10 is switched to supply liquid to the sample analyzer a under test.

In addition, during the internal emergency liquid supply process, if the internal liquid storage barrel of the sample analysis device which is supplied with the internal emergency liquid is replaced again, the sample analysis device is switched back to the internal normal liquid supply, namely, the sample analysis device is supplied with the internal liquid storage barrel 20 by itself. Therefore, in some embodiments, in the process of controlling the internal liquid storage barrels of other sample analyzers to supply liquid to the sample analyzer a under test, when it is determined that the internal liquid storage barrel 20 of the sample analyzer a under test is full, the internal liquid storage barrel 20 under test is switched to supply liquid to the sample analyzer a under test.

Reference is made herein to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope hereof. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in differing ways depending upon the particular application or consideration of any number of cost functions associated with operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. Additionally, as will be appreciated by one skilled in the art, the principles herein may be reflected in a computer program product on a computer readable storage medium, which is pre-loaded with computer readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-to-ROM, DVD, Blu-Ray discs, etc.), flash memory, and/or the like. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including means for implementing the function specified. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified.

While the principles herein have been illustrated in various embodiments, many modifications of structure, arrangement, proportions, elements, materials, and components particularly adapted to specific environments and operative requirements may be employed without departing from the principles and scope of the present disclosure. The above modifications and other changes or modifications are intended to be included within the scope of this document.

The foregoing detailed description has been described with reference to various embodiments. However, one skilled in the art will recognize that various modifications and changes may be made without departing from the scope of the present disclosure. Accordingly, the disclosure is to be considered in an illustrative and not a restrictive sense, and all such modifications are intended to be included within the scope thereof. Also, advantages, other advantages, and solutions to problems have been described above with regard to various embodiments. However, the benefits, advantages, solutions to problems, and any element(s) that may cause any element(s) to occur or become more pronounced are not to be construed as a critical, required, or essential feature or element of any or all the claims. As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, system, article, or apparatus. Furthermore, the term "coupled," and any other variation thereof, as used herein, refers to a physical connection, an electrical connection, a magnetic connection, an optical connection, a communicative connection, a functional connection, and/or any other connection.

Those skilled in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the underlying principles of the invention. Accordingly, the scope of the invention should be determined only by the claims.

Claims

1. A liquid supply system, comprising:

2. The liquid supply system of claim 1, wherein the processor controls the supply of liquid to the sample analyzer, comprising:

3. The liquid supply system of claim 2, wherein the processor controls the supply of liquid to the sample analyzer, comprising:

4. The liquid supply system of claim 3, wherein the processor controls the internal reservoir of the analyzer to supply liquid, comprising:

5. The liquid supply system of claim 4, wherein the processor controls the internal reservoir of the analytical device to supply liquid, further comprising:

6. The liquid supply system of claim 5, wherein the processor determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

the processor determining whether there is an idle sample analysis device;

7. The liquid supply system of claim 5, wherein the processor determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

8. The liquid supply system of claim 7, wherein the processor determines whether the sample analyzer is still idle for a predetermined period of time by counting historical test times of the sample analyzer.

9. The liquid supply system of claim 5, wherein the processor determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

10. The liquid supply system of claim 9, wherein the processor prioritizes the sample analysis devices based on sample priority.

11. The liquid supply system of claim 10, wherein the processor prioritizes the sample analysis devices based on sample priorities, comprising: the more samples of the sample analysis device that are of high sample priority, the higher the priority of the sample analysis device.

12. The liquid supply system of claim 9, wherein the processor prioritizes the sample analysis devices according to project priorities.

13. The liquid supply system of claim 12, wherein the processor prioritizes the sample analysis devices according to project priorities, comprising: the more items of the sample analyzer having a high item priority, the higher the priority of the sample analyzer.

14. The liquid supply system of claim 12, wherein the processor prioritizes the sample analysis devices according to project priorities, comprising: the more items in the preset set of items in the sample analysis device, the higher the priority of the sample analysis device.

15. The liquid supply system of claim 5, wherein the processor determines whether an outer reservoir is full before an inner reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test;

16. The liquid supply system according to any one of claims 5 to 14, wherein the processor controls the internal liquid storage barrel of the other sample analyzer to supply liquid to the sample analyzer under test, and when it is determined that there is a full external liquid storage barrel, the processor switches the full external liquid storage barrel to supply liquid to the sample analyzer under test.

17. The liquid supply system of any one of claims 5 to 14, wherein, when the processor controls the internal liquid storage barrel of the other sample analyzer to supply liquid to the sample analyzer under test, and the internal liquid storage barrel of the sample analyzer under test is determined to be full, the controller switches the internal liquid storage barrel under full state to supply liquid to the sample analyzer under test.

18. A method of a liquid supply system for supplying liquid to a plurality of sample analysis devices; the liquid supply system comprises an external liquid storage barrel and an internal liquid storage barrel which are used for storing cleaning liquid; the external liquid storage barrel is arranged outside the sample analysis device; the external liquid storage barrel is connected with the cleaning components on the plurality of sample analysis devices; the internal liquid storage barrel is arranged inside the sample analysis device, wherein each sample analysis device is at least provided with one internal liquid storage barrel, the internal liquid storage barrel in the sample analysis device is connected with the cleaning component of the sample analysis device, and the internal liquid storage barrel in the sample analysis device is also connected with the cleaning components of other sample analysis devices; characterized in that the method comprises:

19. The method of claim 18, wherein controlling the outer and inner reservoirs to supply a liquid to a sample analysis device comprises:

20. The method of claim 19, wherein controlling the outer and inner reservoirs to supply a liquid to a sample analysis device comprises:

21. The method of claim 20, wherein controlling the internal reservoir of the variety of analytical devices to supply liquid comprises:

22. The method of claim 21, wherein controlling the internal reservoir of the sample analyzer to supply further comprises:

23. The method of claim 22, wherein determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

judging whether an idle sample analysis device exists or not;

24. The method of claim 22, wherein determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

25. The method of claim 24, wherein the determining whether the sample analyzer is still idle for the predetermined period of time is performed by counting historical test times of the sample analyzer.

26. The method of claim 22, wherein determining whether an internal reservoir of another sample analyzer is available to supply liquid to the sample analyzer under test comprises:

27. The method of claim 26, wherein the sample analysis device is prioritized according to sample priority.

28. The method of claim 27, wherein the prioritizing the sample analysis devices according to sample priorities comprises: the more samples of the sample analysis device that are of high sample priority, the higher the priority of the sample analysis device.

29. The method of claim 26, wherein the sample analysis device is prioritized according to item priority.

30. The method of claim 29, wherein said prioritizing the sample analysis devices according to item priority comprises: the more items of the sample analyzer having a high item priority, the higher the priority of the sample analyzer.

31. The method of claim 29, wherein said prioritizing the sample analysis devices according to item priority comprises: the more items in the preset set of items in the sample analysis device, the higher the priority of the sample analysis device.

32. The method of claim 22, wherein determining whether the internal reservoir of the other sample analyzer is available to supply liquid to the sample analyzer under test determines whether the external reservoir is full;

33. The method of any one of claims 22 to 31, wherein during the step of controlling the internal liquid storage barrel of the other sample analyzer to supply liquid to the sample analyzer under test, when it is determined that there is a full external liquid storage barrel, the full external liquid storage barrel is switched to supply liquid to the sample analyzer under test.

34. The method of any of claims 22 to 31, wherein during the step of controlling the internal liquid storage barrel of the other sample analyzer to supply liquid to the sample analyzer under test, when the internal liquid storage barrel of the sample analyzer under test is determined to be full, the internal liquid storage barrel under test is switched to supply liquid to the sample analyzer under test.

35. A computer-readable storage medium, characterized by comprising a program executable by a processor to implement the method of any one of claims 18 to 34.