CN114636838A - Gas circuit device of sample analyzer - Google Patents

Abstract

The invention discloses a gas path device of a sample analyzer, which comprises a gas source mechanism, a liquid-moving mechanism and a pressure tube, wherein the gas source mechanism is used for generating positive pressure or negative pressure, the liquid-moving mechanism is communicated with the gas source mechanism and is used for absorbing or releasing gas or liquid under the action of the positive pressure or the negative pressure of the gas source mechanism, the pressure tube is communicated with the gas source mechanism and is used for providing the positive pressure or the negative pressure to external equipment under the action of the positive pressure or the negative pressure of the gas source mechanism, the liquid-moving mechanism can keep stable storage state of the liquid in the transfer process after absorbing the liquid by providing the negative pressure to the liquid-moving mechanism through the gas source mechanism, and the pressure tube provides the positive pressure or the negative pressure to the external equipment, so that the gas path device has more diversified functions and wider application range.

Description

Translated fromChinese

一种样本分析仪的气路装置A gas circuit device of a sample analyzer

技术领域technical field

本发明涉及医疗设备技术领域，特别涉及一种样本分析仪的气路装置。The invention relates to the technical field of medical equipment, in particular to a gas circuit device of a sample analyzer.

背景技术Background technique

在目前的医疗设备中，使用检验产品诊断病人身体状况时，通常要先对需检测的物质进行采样，例如采血等，得到样本后通过吸取机构和移液机构对样本进行吸取和转移，以与检验产品进行反应。In the current medical equipment, when using inspection products to diagnose the physical condition of a patient, it is usually necessary to sample the substance to be tested, such as blood collection, etc. After obtaining the sample, the sample is sucked and transferred by the suction mechanism and the pipetting mechanism. Check the product for reaction.

本申请的发明人在长期的研发中发现，目前一般都是通过吸样针等直接吸取样本，在转移过程中吸样针对样本的存储状态不稳定，且其功能单一。The inventors of the present application have found during long-term research and development that currently, samples are generally directly aspirated through a sample aspiration needle. During the transfer process, the storage state of the sample is unstable and its function is single.

发明内容SUMMARY OF THE INVENTION

本发明提供一种样本分析仪的气路装置，以解决现有技术中通过吸样针等机构吸取样本在转移过程中存储状态不稳定，且功能单一的技术问题。The present invention provides a gas circuit device for a sample analyzer, so as to solve the technical problems in the prior art that the storage state is unstable and the function is single during the transfer process when the sample is sucked through a mechanism such as a sample suction needle.

为解决上述技术问题，本发明采用的一个技术方案是提供一种样本分析仪的气路装置，包括：In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a gas circuit device of a sample analyzer, including:

气源机构，用于产生正压或负压；Air source mechanism for generating positive or negative pressure;

移液机构，与所述气源机构连通，用于在所述气源机构的所述正压或负压的作用下吸取或释放气体或液体；a pipetting mechanism, communicated with the gas source mechanism, and used for sucking or releasing gas or liquid under the action of the positive pressure or negative pressure of the gas source mechanism;

压力管，与所述气源机构连通，用于在所述气源机构的所述正压或负压作用下向外部设备提供正压或负压。A pressure pipe, communicated with the air source mechanism, is used for providing positive pressure or negative pressure to external equipment under the action of the positive pressure or negative pressure of the air source mechanism.

在一具体实施例中，所述气源机构包括第一注射器及第二注射器，所述第一注射器与所述移液机构连通，用于向所述移液机构提供正压或负压，所述第二注射器与所述压力管连通，用于向所述压力管提供正压或负压。In a specific embodiment, the air source mechanism includes a first syringe and a second syringe, the first syringe communicates with the pipetting mechanism, and is used to provide positive pressure or negative pressure to the pipetting mechanism, so The second syringe communicates with the pressure tube for providing positive or negative pressure to the pressure tube.

在一具体实施例中，所述气路装置进一步包括驱动器及基板，所述第一注射器包括第一注射管及第一活塞，所述第一注射管形成有第一容置腔，所述第一活塞设置于所述第一容置腔内且与所述基板连接，所述第二注射器包括第二注射管及第二活塞，所述第二注射管形成有第二容置腔，所述第二活塞设置于所述第二容置腔内且与所述基板连接，所述驱动器用于驱动所述基板沿所述第一注射管的轴向运动。In a specific embodiment, the air circuit device further includes a driver and a base plate, the first syringe includes a first syringe and a first piston, the first syringe is formed with a first accommodating cavity, the first A piston is disposed in the first accommodating cavity and connected to the base plate, the second syringe includes a second syringe and a second piston, the second syringe is formed with a second accommodating cavity, the The second piston is disposed in the second accommodating cavity and connected with the base plate, and the driver is used for driving the base plate to move in the axial direction of the first injection tube.

在一具体实施例中，所述气路装置进一步包括第一电子阀，所述第一电子阀形成有第一入口、第一出口以及第二出口，所述第一入口与所述第二注射器连通，所述第一出口与所述第一注射器连通，所述第二出口与所述压力管连通。In a specific embodiment, the air circuit device further includes a first electronic valve, the first electronic valve is formed with a first inlet, a first outlet and a second outlet, the first inlet and the second injector The first outlet communicates with the first syringe, and the second outlet communicates with the pressure pipe.

在一具体实施例中，所述气路装置进一步包括压力室机构、第二电子阀以及第三电子阀，所述压力室机构分别与所述气源机构和所述压力管连通，所述第二电子阀设置于所述压力室机构与所述气源机构之间，所述第三电子阀设置于所述压力室机构与所述压力管之间，所述压力室机构用于将所述气源机构产生的所述正压或负压进行存储。In a specific embodiment, the air circuit device further includes a pressure chamber mechanism, a second electronic valve and a third electronic valve, the pressure chamber mechanism is communicated with the air source mechanism and the pressure pipe, respectively, and the first electronic valve Two electronic valves are arranged between the pressure chamber mechanism and the air source mechanism, and the third electronic valve is arranged between the pressure chamber mechanism and the pressure pipe, and the pressure chamber mechanism is used to The positive or negative pressure generated by the air source mechanism is stored.

在一具体实施例中，压力室机构包括至少两个压力室，所述至少两个压力室包括第一压力室及第二压力室，所述第一压力室分别与所述气源机构和所述压力管连通，所述第二压力室与第一压力室连通。In a specific embodiment, the pressure chamber mechanism includes at least two pressure chambers, the at least two pressure chambers include a first pressure chamber and a second pressure chamber, and the first pressure chamber is respectively connected to the air source mechanism and the other pressure chambers. The pressure pipe communicates with the second pressure chamber, and the second pressure chamber communicates with the first pressure chamber.

在一具体实施例中，所述压力室机构进一步包括压力室稳压器，所述压力室稳压器与所述第一压力室或所述第二压力室连通。In a specific embodiment, the pressure chamber mechanism further includes a pressure chamber regulator in communication with the first pressure chamber or the second pressure chamber.

在一具体实施例中，所述第二电子阀为三通阀，所述第二电子阀形成有第二入口、第三出口以及第四出口，所述第二入口与所述气源机构连通，所述第三出口与所述压力室机构连通，所述第四出口与外界空气或外部设备连通，所述第三电子阀为单向阀。In a specific embodiment, the second electronic valve is a three-way valve, the second electronic valve is formed with a second inlet, a third outlet and a fourth outlet, and the second inlet communicates with the air source mechanism , the third outlet is communicated with the pressure chamber mechanism, the fourth outlet is communicated with outside air or external equipment, and the third electronic valve is a one-way valve.

在一具体实施例中，所述气路装置进一步包括空气过滤器，所述空气过滤器与所述第四出口连通。In a specific embodiment, the air circuit device further includes an air filter, and the air filter communicates with the fourth outlet.

在一具体实施例中，所述移液机构包括储液盒，用于存储吸取的所述液体，所述气路装置进一步包括第四电子阀，所述第四电子阀设置于所述储液盒和所述第一注射器之间。In a specific embodiment, the pipetting mechanism includes a liquid storage box for storing the sucked liquid, the air circuit device further includes a fourth electronic valve, and the fourth electronic valve is arranged in the liquid storage box. between the cassette and the first syringe.

本发明样本分析仪的气路装置包括气源机构、移液机构以及压力管，气源机构用于产生正压或负压，移液机构与气源机构连通，用于在气源机构的正压或负压的作用下吸取或释放气体或液体，压力管与气源机构连通，用于在气源机构的正压或负压作用下向外部设备提供正压或负压，通过气源机构对移液机构提供负压，能够使得移液机构在吸取液体后的转移过程中对液体的存储状态保持稳定，并且通过压力管向外部设备提供正压或负压，能够使得的气路装置的功能更加多样化，适用范围更广。The air circuit device of the sample analyzer of the present invention includes an air source mechanism, a pipetting mechanism and a pressure tube. The air source mechanism is used to generate positive pressure or negative pressure. Absorb or release gas or liquid under the action of pressure or negative pressure, the pressure pipe is connected with the air source mechanism, and is used to provide positive or negative pressure to external equipment under the action of positive pressure or negative pressure of the air source mechanism, through the air source mechanism Providing negative pressure to the pipetting mechanism can make the pipetting mechanism maintain a stable storage state of the liquid during the transfer process after sucking the liquid, and provide positive pressure or negative pressure to the external equipment through the pressure tube, which can make the air circuit device. The functions are more diversified and the scope of application is wider.

附图说明Description of drawings

为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图，其中：In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

图1是本发明样本分析仪的气路装置的结构示意图。FIG. 1 is a schematic structural diagram of the gas circuit device of the sample analyzer of the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，均属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

本申请中的术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。而术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。The terms "first" and "second" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices. The term "and/or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

参见图1，本发明样本分析仪的气路装置10实施例包括气源机构100、移液机构200以及压力管300，气源机构100用于产生正压或负压，移液机构200与气源机构100连通，用于在气源机构100的正压或负压的作用下吸取或释放气体或液体，压力管300与气源机构100连通，用于在气源机构100的正压或负压作用下向外部设备(图中未示出)提供正压或负压，通过气源机构100对移液机构200提供负压，能够使得移液机构200在吸取液体后的转移过程中对液体的存储状态保持稳定，并且通过压力管300向外部设备提供正压或负压，能够使得的气路装置10的功能更加多样化，适用范围更广。Referring to FIG. 1 , an embodiment of theair circuit device 10 of the sample analyzer of the present invention includes anair source mechanism 100 , apipetting mechanism 200 and apressure tube 300 . Theair source mechanism 100 is used to generate positive or negative pressure, and thepipetting mechanism 200 is connected to the gas Thesource mechanism 100 is in communication with thegas source mechanism 100 for absorbing or releasing gas or liquid under the action of the positive or negative pressure of thegas source mechanism 100 . Under the action of pressure, positive pressure or negative pressure is provided to an external device (not shown in the figure), and negative pressure is provided to thepipetting mechanism 200 through theair source mechanism 100, so that thepipetting mechanism 200 is able to absorb the liquid during the transfer process. The storage state of theair circuit device 10 is kept stable, and the positive pressure or negative pressure is provided to the external equipment through thepressure pipe 300, which can make the function of theair circuit device 10 more diversified and the scope of application wider.

在本实施例中，气源机构100可以包括第一注射器110及第二注射器120，第一注射器110与移液机构200连通，用于向移液机构200提供正压或负压，第二注射器120与压力管300连通，用于向压力管300提供正压或负压，能够对向移液机构200和压力管300提供的正压或负压实现分别控制，进而能够提高移液机构200对液体的吸取精度，提高气路装置10的灵活性。In this embodiment, thegas source mechanism 100 may include afirst syringe 110 and asecond syringe 120, thefirst syringe 110 communicates with thepipetting mechanism 200 and is used to provide positive or negative pressure to thepipetting mechanism 200, and thesecond syringe 120 is communicated with thepressure tube 300 for providing positive pressure or negative pressure to thepressure tube 300, and can control the positive pressure or negative pressure provided by thepipetting mechanism 200 and thepressure pipe 300 respectively, thereby improving the ability of thepipetting mechanism 200 to provide a positive or negative pressure. The suction precision of the liquid improves the flexibility of theair circuit device 10 .

在本实施例中，第一注射器110的容量可以为80ul至120ul，第二注射器120的容量可以为8ml至12ml，由于第一注射器110的容量更小，每次抽取或释放的精度更高，能够进一步提高移液机构200对液体的吸取精度。In this embodiment, the capacity of thefirst syringe 110 may be 80ul to 120ul, and the capacity of thesecond syringe 120 may be 8ml to 12ml. Since the capacity of thefirst syringe 110 is smaller, the accuracy of each extraction or release is higher, The suction accuracy of the liquid by thepipetting mechanism 200 can be further improved.

在其他实施例中，第一注射器110和第二注射器120的容量也可以根据实际需要进行调整，在此不做限制。In other embodiments, the capacities of thefirst syringe 110 and thesecond syringe 120 can also be adjusted according to actual needs, which is not limited herein.

在其他实施例中，气源机构100也可以包括注射器、气泵、气缸以及柱塞泵等气压产生机构中的至少一者。In other embodiments, theair source mechanism 100 may also include at least one of an air pressure generating mechanism such as a syringe, an air pump, an air cylinder, and a plunger pump.

在本实施例中，气路装置10进一步包括驱动器130及基板140，第一注射器110包括第一注射管111及第一活塞112，第一注射管111形成有第一容置腔，第一活塞112设置于第一容置腔内且与基板140连接，第二注射器120包括第二注射管121及第二活塞122，第二注射管121形成有第二容置腔，所第二活塞122设置于第二容置腔内且与基板140连接，驱动器130用于驱动基板140沿第一注射管111的轴向运动，以进行抽吸或释放。通过将第一活塞112和第二活塞122连接于一个基板140上，能够仅使用一个驱动器130即可实现第一活塞112和第二活塞122的驱动，使得气路装置10的结构更加简单，占用空间更小，节省成本。In this embodiment, theair circuit device 10 further includes adriver 130 and abase plate 140, thefirst syringe 110 includes a first syringe 111 and afirst piston 112, the first syringe 111 is formed with a first accommodating cavity, and thefirst piston 112 is disposed in the first accommodating cavity and connected to thebase plate 140, thesecond syringe 120 includes asecond syringe 121 and asecond piston 122, thesecond syringe 121 is formed with a second accommodating cavity, and thesecond piston 122 is provided In the second accommodating cavity and connected to thebase plate 140 , thedriver 130 is used to drive thebase plate 140 to move along the axial direction of the first injection tube 111 to perform suction or release. By connecting thefirst piston 112 and thesecond piston 122 to onebase plate 140, only onedriver 130 can be used to realize the driving of thefirst piston 112 and thesecond piston 122, so that the structure of theair circuit device 10 is simpler and occupies less space. Less space and cost savings.

在其他实施例中，也可以通过驱动第一注射管111和第二注射管121来实现抽吸或释放，在此不做限制。In other embodiments, suction or release can also be achieved by driving the first syringe 111 and thesecond syringe 121, which is not limited herein.

在其他实施例中，也可以通过两个驱动器分别驱动第一注射器110及第二注射器120，能够使得控制更加灵活，在此不做限制。In other embodiments, thefirst injector 110 and thesecond injector 120 may be driven respectively by two drivers, which can make the control more flexible, which is not limited herein.

在本实施例中，气路装置10进一步可以包括第一电子阀150，第一电子阀150形成有第一入口I1、第一出口O11以及第二出口O12，第一入口I1与第二注射器120连通，第一出口O11与第一注射器110连通，第二出口O12与压力管300连通，以使得第一注射器110也能够向移液机构200提供正压或负压，使得移液机构200能够吸取或释放的气体或液体的量更大，气路装置10的适用范围更广。In this embodiment, thegas circuit device 10 may further include a firstelectronic valve 150 , the firstelectronic valve 150 is formed with a first inlet I1 , a first outlet O11 and a second outlet O12 , the first inlet I1 and thesecond injector 120 The first outlet O11 is communicated with thefirst syringe 110, and the second outlet O12 is communicated with thepressure tube 300, so that thefirst syringe 110 can also provide positive or negative pressure to thepipetting mechanism 200, so that thepipetting mechanism 200 can suck Or the amount of gas or liquid released is larger, and the application range of thegas circuit device 10 is wider.

在本实施例中，气路装置10进一步可以包括控制器(图中未示出)，控制器用于在所需获取的液体的量小于或等于第一注射器110的容置时，控制第一电子阀150的第一出口O11保持关闭，控制移液机构200移动至样本容器的上方，再控制驱动器130驱动基板140沿第一注射管111的轴向向下运动，以吸取样本容器中的液体，吸取完毕后再控制移液机构200移动至目标池的上方，控制驱动器130驱动基板140沿第一注射管111的轴向向上运动，以释放液体至目标池中。In this embodiment, thegas circuit device 10 may further include a controller (not shown in the figure), the controller is used to control the first electronic device when the amount of liquid to be obtained is less than or equal to the accommodation of thefirst syringe 110 . The first outlet O11 of thevalve 150 is kept closed, thepipetting mechanism 200 is controlled to move above the sample container, and thedriver 130 is controlled to drive thesubstrate 140 to move downward along the axial direction of the first syringe 111 to suck the liquid in the sample container, After the suction is completed, thepipetting mechanism 200 is controlled to move above the target pool, and thedriver 130 is controlled to drive thesubstrate 140 to move upward along the axial direction of the first syringe 111 to release the liquid into the target pool.

控制器进一步用于在所需获取的液体的量大于第一注射器110的容置时，控制第一电子阀150的第一出口O11开启，再控制移液机构200移动至样本容器的上方，控制驱动器130驱动基板140沿第一注射管111的轴向向下运动，以吸取样本容器中的液体，吸取完毕后再控制第一出口O11关闭，直至移液机构200移动至目标池的上方，能够使得移液机构200的移动过程中液体的存储状态更加稳定，然后控制器再控制第一出口O11开启，并控制驱动器130驱动基板140沿第一注射管111的轴向向上运动，以释放液体至目标池中，如此反复直至获取的液体的量达到目标量。The controller is further configured to control the first outlet O11 of the firstelectronic valve 150 to open when the amount of liquid to be obtained is greater than the capacity of thefirst syringe 110, and then control thepipetting mechanism 200 to move to the top of the sample container, and control the Thedriver 130 drives thesubstrate 140 to move downward along the axial direction of the first injection tube 111 to absorb the liquid in the sample container, and after the suction is completed, the first outlet O11 is controlled to close until thepipetting mechanism 200 moves to the top of the target pool, which can The storage state of the liquid during the movement of thepipetting mechanism 200 is made more stable, and then the controller controls the first outlet O11 to open, and controls thedriver 130 to drive thesubstrate 140 to move upward along the axial direction of the first syringe 111 to release the liquid to In the target pool, this is repeated until the amount of liquid obtained reaches the target amount.

在本实施例中，控制器还可以在获取液体之前，控制驱动器130驱动基板140沿第一注射管111的轴向向下运动，以通过移液机构200吸取外界空气，进而消除回程误差，能够减小误差，进一步提高获取液体的容量精度。In this embodiment, the controller may also control thedriver 130 to drive thesubstrate 140 to move downward along the axial direction of the first injection tube 111 before acquiring the liquid, so as to absorb the outside air through thepipetting mechanism 200, thereby eliminating the return error, and can The error is reduced, and the volume accuracy of the obtained liquid is further improved.

在本实施例中，移液机构200包括储液盒210及第四电子阀220，储液盒210用于存储吸取的液体，以便于运输转移，第四电子阀220设置于储液盒210和第一注射器110之间，能够用于控制储液盒210与第一注射器110之间的通断，进而能够使得储液盒210的存储状态更加稳定。In this embodiment, thepipetting mechanism 200 includes aliquid storage box 210 and a fourthelectronic valve 220. Theliquid storage box 210 is used to store the sucked liquid so as to facilitate transportation and transfer, and the fourthelectronic valve 220 is disposed in theliquid storage box 210 and the fourthelectronic valve 220. The space between thefirst syringes 110 can be used to control the on-off between theliquid storage box 210 and thefirst syringe 110 , thereby making the storage state of theliquid storage box 210 more stable.

在本实施例中，气路装置10进一步包括压力室机构400、第二电子阀410以及第三电子阀420，压力室机构400分别与气源机构100和压力管300连通，第二电子阀410设置于压力室机构400与气源机构100之间，第三电子阀420设置于压力室机构400与压力管300之间，压力室机构400用于将气源机构100产生的正压或负压进行存储，从而能够在需要向外部设备提供正压或负压时，能够快速提供足够的正压或负压，可靠性更高。In this embodiment, theair circuit device 10 further includes apressure chamber mechanism 400 , a secondelectronic valve 410 and a thirdelectronic valve 420 . Thepressure chamber mechanism 400 communicates with theair source mechanism 100 and thepressure pipe 300 respectively, and the secondelectronic valve 410 The thirdelectronic valve 420 is arranged between thepressure chamber mechanism 400 and theair source mechanism 100 , and the thirdelectronic valve 420 is arranged between thepressure chamber mechanism 400 and thepressure pipe 300 . Thepressure chamber mechanism 400 is used for the positive or negative pressure generated by theair source mechanism 100 . For storage, when positive or negative pressure needs to be provided to external equipment, sufficient positive or negative pressure can be quickly provided, and the reliability is higher.

在本实施例中，压力室机构400包括至少两个压力室，至少两个压力室包括第一压力室430及第二压力室440，第一压力室430分别与气源机构100和压力管300连通，第二压力室440与第一压力室430连通，相比于只使用一个容量较大的压力室向外部设备提供正压或负压时只能将压力室内的压力值稳定在某一个值，本实施例通过设置两个连通的压力室，能够在向外部设备提供正压或负压时将两个压力室内的压力值控制在某一个范围内，适用范围更广。In this embodiment, thepressure chamber mechanism 400 includes at least two pressure chambers, the at least two pressure chambers include afirst pressure chamber 430 and asecond pressure chamber 440 , and thefirst pressure chamber 430 is connected to theair source mechanism 100 and thepressure pipe 300 respectively. Thesecond pressure chamber 440 is communicated with thefirst pressure chamber 430. Compared with only using a pressure chamber with a larger capacity to provide positive pressure or negative pressure to external equipment, the pressure value in the pressure chamber can only be stabilized at a certain value. In this embodiment, by arranging two connected pressure chambers, the pressure values in the two pressure chambers can be controlled within a certain range when positive pressure or negative pressure is provided to the external device, and the applicable range is wider.

在本实施例中，压力室机构400进一步包括压力室稳压器450，压力室稳压450与第一压力室430或第二压力室440连通，用于将第一压力室430及第二压力室440内的压力保持在可承受范围内。In this embodiment, thepressure chamber mechanism 400 further includes apressure chamber regulator 450, and thepressure chamber regulator 450 communicates with thefirst pressure chamber 430 or thesecond pressure chamber 440, and is used for connecting thefirst pressure chamber 430 and the second pressure chamber The pressure withinchamber 440 is maintained within an acceptable range.

在本实施例中，压力室稳压器450可以为压力传感器，用于检测第一压力室430或第二压力室440内的压力值，能够对第一压力室430或第二压力室440内的压力值进行监控，以在第一压力室430或第二压力室440内的压力值过高或过低时进行相应操作以保护第一压力室430或第二压力室440，并且通过检测压力值能够获取气路装置10的工作情况以便于根据不同情况进行相应控制操作。In this embodiment, thepressure chamber regulator 450 may be a pressure sensor, which is used to detect the pressure value in thefirst pressure chamber 430 or thesecond pressure chamber 440, and can detect the pressure value in thefirst pressure chamber 430 or thesecond pressure chamber 440. The pressure value of thefirst pressure chamber 430 or thesecond pressure chamber 440 is monitored to perform corresponding operations to protect thefirst pressure chamber 430 or thesecond pressure chamber 440 when the pressure value in thefirst pressure chamber 430 or thesecond pressure chamber 440 is too high or too low, and by detecting the pressure The value can obtain the working conditions of theair circuit device 10 so as to perform corresponding control operations according to different conditions.

在其他实施例中压力室稳压器450也可以为压力阀等其他形式的稳压机构，在此不做限制。In other embodiments, thepressure chamber regulator 450 may also be other forms of pressure stabilization mechanisms such as pressure valves, which are not limited herein.

在本实施例中，第二电子阀410为三通阀，第二电子阀410形成有第二入口I2、第三出口O21以及第四出口O22，第二入口I2与气源机构100连通，第三出口O21与压力室机构400连通，第四出口O22与外界空气或外部设备连通。In this embodiment, the secondelectronic valve 410 is a three-way valve. The secondelectronic valve 410 is formed with a second inlet I2, a third outlet O21 and a fourth outlet O22. The second inlet I2 is communicated with theair source mechanism 100, and the first The third outlet O21 communicates with thepressure chamber mechanism 400, and the fourth outlet O22 communicates with outside air or external equipment.

在本实施例中，气路装置10进一步可以包括空气过滤器500，空气过滤器500与第四出口O22连通，用于对流经第二电子阀410的空气进行过滤净化。In this embodiment, theair circuit device 10 may further include anair filter 500 , and theair filter 500 communicates with the fourth outlet O22 for filtering and purifying the air flowing through the secondelectronic valve 410 .

在本实施例中，第三电子阀420为单向阀，用于控制空气由压力管300向压力室机构400单向运动，能够避免外部设备连通的外部空气倒灌至压力室机构400。In this embodiment, the thirdelectronic valve 420 is a one-way valve, which is used to control the one-way movement of air from thepressure pipe 300 to thepressure chamber mechanism 400 , which can prevent the external air communicated by external equipment from flowing back into thepressure chamber mechanism 400 .

在本实施例中，控制器进一步可以用于在需要压力室机构400存储负压时，控制第一电子阀150的第二出口O12开启，第二电子阀410的第二入口I2及第三出口O21开启，再控制驱动器130驱动基板140沿第一注射管111的轴向向下运动，以在第一压力室430和第二压力室440内形成负压，待第二注射器120达到最大量程后，控制第二电子阀410的第二入口I2关闭，再控制驱动器130驱动基板140沿第一注射管111的轴向向上运动，以使得第二注射器120复位，然后再次控制第二电子阀410的第二入口I2及第三出口O21开启，控制驱动器130驱动基板140沿第一注射管111的轴向向下运动，以增加第一压力室430和第二压力室440内的负压，如此循环直至第一压力室430和第二压力室440内的负压达到目标值，控制第二电子阀410关闭，完成压力室机构400的负压存储。In this embodiment, the controller can be further configured to control the second outlet O12 of the firstelectronic valve 150 to open, the second inlet I2 and the third outlet of the secondelectronic valve 410 when thepressure chamber mechanism 400 needs to store negative pressure O21 is turned on, and then thedriver 130 is controlled to drive thesubstrate 140 to move downward along the axial direction of the first injection tube 111 to form a negative pressure in thefirst pressure chamber 430 and thesecond pressure chamber 440. After thesecond syringe 120 reaches the maximum range , control the second inlet I2 of the secondelectronic valve 410 to close, and then control thedriver 130 to drive thesubstrate 140 to move upward along the axial direction of the first syringe 111 to reset thesecond syringe 120 , and then control the secondelectronic valve 410 again The second inlet I2 and the third outlet O21 are opened, and thedriver 130 is controlled to drive thesubstrate 140 to move downward along the axial direction of the first injection tube 111 to increase the negative pressure in thefirst pressure chamber 430 and thesecond pressure chamber 440 , and so on. Until the negative pressure in thefirst pressure chamber 430 and thesecond pressure chamber 440 reaches the target value, the secondelectronic valve 410 is controlled to close, and the negative pressure storage of thepressure chamber mechanism 400 is completed.

在需要向外部设备提供负压时，将压力管与外部设备连通，控制器控制第三电子阀420开启，向外部设备提供负压。When it is necessary to provide negative pressure to the external device, the pressure pipe is communicated with the external device, and the controller controls the thirdelectronic valve 420 to open to provide negative pressure to the external device.

以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (10)

Translated fromChinese

1.一种样本分析仪的气路装置，其特征在于，包括：1. A gas circuit device of a sample analyzer, characterized in that, comprising:气源机构，用于产生正压或负压；Air source mechanism for generating positive or negative pressure;移液机构，与所述气源机构连通，用于在所述气源机构的所述正压或负压的作用下吸取或释放气体或液体；a pipetting mechanism, communicated with the gas source mechanism, and used for sucking or releasing gas or liquid under the action of the positive pressure or negative pressure of the gas source mechanism;压力管，与所述气源机构连通，用于在所述气源机构的所述正压或负压作用下向外部设备提供正压或负压。A pressure pipe, communicated with the air source mechanism, is used for providing positive pressure or negative pressure to external equipment under the action of the positive pressure or negative pressure of the air source mechanism.2.根据权利要求1所述的气路装置，其特征在于，所述气源机构包括第一注射器及第二注射器，所述第一注射器与所述移液机构连通，用于向所述移液机构提供正压或负压，所述第二注射器与所述压力管连通，用于向所述压力管提供正压或负压。2 . The air circuit device according to claim 1 , wherein the air source mechanism comprises a first syringe and a second syringe, and the first syringe is communicated with the pipetting mechanism, and is used for transferring to the transfer mechanism. 3 . The hydraulic mechanism provides positive pressure or negative pressure, and the second syringe communicates with the pressure pipe for providing positive pressure or negative pressure to the pressure pipe.3.根据权利要求2所述的气路装置，其特征在于，所述气路装置进一步包括驱动器及基板，所述第一注射器包括第一注射管及第一活塞，所述第一注射管形成有第一容置腔，所述第一活塞设置于所述第一容置腔内且与所述基板连接，所述第二注射器包括第二注射管及第二活塞，所述第二注射管形成有第二容置腔，所述第二活塞设置于所述第二容置腔内且与所述基板连接，所述驱动器用于驱动所述基板沿所述第一注射管的轴向运动。3 . The air circuit device according to claim 2 , wherein the air circuit device further comprises a driver and a base plate, the first syringe comprises a first injection tube and a first piston, and the first injection tube forms a There is a first accommodating cavity, the first piston is arranged in the first accommodating cavity and is connected with the base plate, the second syringe includes a second syringe and a second piston, the second syringe A second accommodating cavity is formed, the second piston is arranged in the second accommodating cavity and is connected with the base plate, and the driver is used to drive the base plate to move along the axial direction of the first injection tube .4.根据权利要求2所述的气路装置，其特征在于，所述气路装置进一步包括第一电子阀，所述第一电子阀形成有第一入口、第一出口以及第二出口，所述第一入口与所述第二注射器连通，所述第一出口与所述第一注射器连通，所述第二出口与所述压力管连通。4. The air circuit device according to claim 2, wherein the air circuit device further comprises a first electronic valve, the first electronic valve is formed with a first inlet, a first outlet and a second outlet, so The first inlet communicates with the second syringe, the first outlet communicates with the first syringe, and the second outlet communicates with the pressure pipe.5.根据权利要求1所述的气路装置，其特征在于，所述气路装置进一步包括压力室机构、第二电子阀以及第三电子阀，所述压力室机构分别与所述气源机构和所述压力管连通，所述第二电子阀设置于所述压力室机构与所述气源机构之间，所述第三电子阀设置于所述压力室机构与所述压力管之间，所述压力室机构用于将所述气源机构产生的所述正压或负压进行存储。5 . The air circuit device according to claim 1 , wherein the air circuit device further comprises a pressure chamber mechanism, a second electronic valve and a third electronic valve, the pressure chamber mechanism and the air source mechanism are respectively communicated with the pressure pipe, the second electronic valve is arranged between the pressure chamber mechanism and the air source mechanism, the third electronic valve is arranged between the pressure chamber mechanism and the pressure pipe, The pressure chamber mechanism is used for storing the positive pressure or negative pressure generated by the air source mechanism.6.根据权利要求5所述的气路装置，其特征在于，压力室机构包括至少两个压力室，所述至少两个压力室包括第一压力室及第二压力室，所述第一压力室分别与所述气源机构和所述压力管连通，所述第二压力室与第一压力室连通。6. The air circuit device according to claim 5, wherein the pressure chamber mechanism comprises at least two pressure chambers, the at least two pressure chambers comprise a first pressure chamber and a second pressure chamber, the first pressure chamber The chambers are communicated with the air source mechanism and the pressure pipe respectively, and the second pressure chamber is communicated with the first pressure chamber.7.根据权利要求6所述的气路装置，其特征在于，所述压力室机构进一步包括压力室稳压器，所述压力室稳压器与所述第一压力室或所述第二压力室连通。7. The air circuit device according to claim 6, wherein the pressure chamber mechanism further comprises a pressure chamber regulator, the pressure chamber regulator is connected to the first pressure chamber or the second pressure Room is connected.8.根据权利要求5所述的气路装置，其特征在于，所述第二电子阀为三通阀，所述第二电子阀形成有第二入口、第三出口以及第四出口，所述第二入口与所述气源机构连通，所述第三出口与所述压力室机构连通，所述第四出口与外界空气或外部设备连通，所述第三电子阀为单向阀。8 . The air circuit device according to claim 5 , wherein the second electronic valve is a three-way valve, the second electronic valve is formed with a second inlet, a third outlet and a fourth outlet, and the second electronic valve is formed with a second inlet, a third outlet and a fourth outlet. The second inlet communicates with the air source mechanism, the third outlet communicates with the pressure chamber mechanism, the fourth outlet communicates with outside air or external equipment, and the third electronic valve is a one-way valve.9.根据权利要求8所述的气路装置，其特征在于，所述气路装置进一步包括空气过滤器，所述空气过滤器与所述第四出口连通。9 . The air circuit device according to claim 8 , wherein the air circuit device further comprises an air filter, the air filter communicates with the fourth outlet. 10 .10.根据权利要求2所述的气路装置，其特征在于，所述移液机构包括储液盒，用于存储吸取的所述液体，所述气路装置进一步包括第四电子阀，所述第四电子阀设置于所述储液盒和所述第一注射器之间。10. The air circuit device according to claim 2, wherein the pipetting mechanism comprises a liquid storage box for storing the sucked liquid, the air circuit device further comprises a fourth electronic valve, the The fourth electronic valve is arranged between the liquid storage box and the first syringe.

Images