Pipe and work station

Abstract

The utility model relates to the technical field of sample preparation, in particular to a pipe and a workstation, the pipe comprises a first pipe body, a second pipe body and a filter element, and a mounting opening is formed in the first pipe body; the second pipe body is sleeved with the first pipe body, an inlet and an outlet are formed in the second pipe body, the inlet is located in the end, close to the mounting opening, of the second pipe body, the outlet is communicated with the interior of the first pipe body, and liquid is preloaded in the second pipe body; the supporting force of the filter element, the tension of the liquid and the capillary acting force formed by the micro channels in the filter element enable the liquid to overcome the self gravity so as to be kept in the second pipe body; the filter element is arranged on the second pipe body close to the outlet. According to the tube provided by the embodiment of the invention, the second tube body is filled with the liquid, so that the step of adding the liquid into the second tube body is omitted, the flocked swab is put into the second tube body to be soaked and does not need to be taken out, the manual operation of manually extruding the swab head and pinching a tube drop sample in the detection process is reduced, the biological safety risk is reduced, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sample preparation, in particular to a tube and a workstation. BACKGROUND

[0002] In sample collection and analysis operations, sample test tubes are key tools, and their technology has developed to a relatively mature stage. However, there are still some problems in the existing technology that need to be solved. In particular, in the detection process, the current commonly used method needs manual squeezing of the swab head and the cumbersome operation steps of pinching the tube to drop the sample. These steps not only increase the complexity of the detection process and reduce the work efficiency, but also may cause sample contamination or loss due to improper operation, thereby affecting the accuracy of the detection results. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a tube and a workstation that simplify the operation steps and improve the detection efficiency and accuracy.

[0004] To achieve the above-mentioned purpose, in a first aspect, an embodiment of the present application provides a tube, comprising a first tube body, a second tube body and a filter core, the first tube body is provided with a mounting port; the first tube body is sleeved on the second tube body, the second tube body is sealed and detachably connected at the mounting port of the first tube body, the second tube body is provided with an inlet and an outlet, the inlet is located at one end of the second tube body close to the mounting port, the outlet is in communication with the inside of the first tube body, the second tube body is preloaded with a liquid, and the filter core is arranged at the outlet of the second tube body. After the inlet of the second tube body is sealed, the preloaded liquid is stably maintained above the filter core. The supporting force of the filter core, the tension of the liquid and the capillary action force formed by the micro channels in the filter core form a combined force that can make the liquid overcome its own gravity and maintain the resistance in the second tube body, thereby maintaining the liquid in the second tube body; the filter core is arranged at the outlet of the second tube body.

[0005] In an embodiment, the inner diameter of the second tube body gradually decreases along the Z-axis direction, and the Z-axis direction is parallel to the axis of the second tube body and points from the inlet to the outlet.

[0006] In an embodiment, along the Z-axis direction, the outer diameter of the filter core gradually decreases or remains the same.

[0007] In an embodiment, the filter hole diameter of the filter core is A, wherein 1 μm≤A≤20 μm.

[0008] In an embodiment, a limiting ring is arranged on the inner wall at the outlet of the second tube body, and the limiting ring is used to limit the displacement of the filter core.

[0009] In one embodiment, the first tube body is detachably connected with the second tube body.

[0010] In one embodiment, a connecting sleeve is sleeved on the second tube body, and the first tube body and the second tube body are sealingly and detachably connected through the connecting sleeve.

[0011] In one embodiment, the connecting sleeve is threadedly connected with the second tube body and the first tube body respectively.

[0012] In one embodiment, the connecting sleeve is integrally formed with the second tube body; and the connecting sleeve is threadedly connected with the first tube body.

[0013] In one embodiment, the tube further comprises a connecting band and a cover, one end of the connecting band is fixedly arranged; the cover is connected with the other end of the connecting band, and the cover is installed at the inlet of the second tube body to close the inlet.

[0014] In one embodiment, the tube further comprises a cover, which is detachably installed at the inlet of the second tube body to close the inlet.

[0015] In one embodiment, the tube further comprises a heat-seal film, which is arranged at the inlet to close the inlet by the heat-seal film to maintain the sealing of the first tube body and the second tube body.

[0016] In a second aspect, the embodiments of the present application also provide a workstation, comprising a centrifugal device, a detection device and a tube according to any of the above embodiments; the centrifugal device is used for centrifuging the tube; and the detection device is used for detecting a biological parameter of a sample in the tube body.

[0017] In one embodiment, the workstation further comprises a processing device and a waste storage device, the waste storage device is used for storing waste, and the processing device comprises a moving unit and a separating unit; the moving unit is used for moving the first tube body from the centrifugal device to the detection device; and the separating unit is used for separating the second tube body of the tube from the first tube body of the tube and placing the second tube body into the waste storage device.

[0018] The tube provided by the embodiment of the application can keep the preloaded liquid in the second tube body by the supporting force of the filter core, the tension of the liquid and the capillary force formed by the tiny channel in the filter core, so that the step of adding liquid into the second tube body is omitted, the flocked swab is put into the second tube body without being taken out, the manual operation of manually pressing the swab head and pinching the tube to drop the sample is reduced, the detection efficiency is improved, the interference of the swab and other sundries on the detection result is reduced by the filter core, the detection precision is improved, and the used flocked swab can be reserved in the second tube body, so that the pollution risk of the flocked swab sample is reduced.

[0019] Other features and advantages of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 A perspective view of the structure of one of the embodiments of the tube provided by the embodiments of the present application;

[0022] Figure 2 A partial structure of the structure of one of the embodiments of the tube provided by the embodiments of the present application from a second perspective;

[0023] Figure 3 A partial structure of the structure of one of the embodiments of the tube provided by the embodiments of the present application from a third perspective;

[0024] Figure 4 A partial structure of the structure of one of the embodiments of the tube provided by the embodiments of the present application from a fourth perspective;

[0025] Figure 5 A partial structure of the structure of one of the embodiments of the tube provided by the embodiments of the present application from a fifth perspective;

[0026] Figure 6 A perspective view of the structure of one of the embodiments of the tube provided by the embodiments of the present application from a sixth perspective;

[0027] Figure 7 A Figure 6 sectional view of the direction B-B;

[0028] Figure 8 AFigure 7 A local enlarged view at C;

[0029] Figure 9 A seven-view structural schematic diagram of another embodiment of a tube provided for the embodiments of the present application.

[0030] Icon:

[0031] 100 - first tube body; 110 - mounting port;

[0032] 200 - second tube body; 210 - inlet; 220 - outlet; 230 - limiting ring; 240 - connecting sleeve; 250 - cover; 260 - connecting belt; 270 - buckle cover;

[0033] 300 - filter element. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms “inner”, “outer” and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships in which the products of the present application are usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second” and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “set”, “connected” should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In a first aspect, the embodiments of the present application provide a tube, which comprises a first tube body 100, a second tube body 200 and a filter element 300. Figure 6 and Figure 7 As shown in the drawings, the tube comprises a first tube body 100, a second tube body 200 and a filter element 300.

[0038] As shown in the drawings, the tube comprises a first tube body 100, a second tube body 200 and a filter element 300. Figure 2As shown, the first tube body 100 is provided with a mounting port 110.

[0039] As shown, the first tube body 100 is provided with a mounting port 110. Figure 2 and Figure 7 As shown, the first tube body 100 is provided with a mounting port 110.

[0040] As shown, the first tube body 100 is provided with a mounting port 110. Figure 4 and Figure 5 As shown, the first tube body 100 is provided with a mounting port 110. Figure 7 As shown, the first tube body 100 is provided with a mounting port 110.

[0041] The second tube body 200 is preloaded with a liquid, which is a sample preservation liquid. The support force of the filter core 300, the tension of the liquid, and the capillary action force formed by the micro-channels inside the filter core 300 form a combined force that makes the liquid overcome its own gravity and maintain the resistance in the second tube body 200. Therefore, whether the tube is placed vertically or horizontally, the sample preservation liquid stays in the second tube body 200 under the action of the above-mentioned combined force. Unless the tube provided by the present application is subjected to pressure treatment, such as being placed in a centrifuge for centrifugation or being manually shaken for centrifugation, the sample preservation liquid in the second tube body 200 can overcome the resistance and enter the first tube body 100.

[0042] In the present application, the thickness of the filter core 300, the volume of the preloaded liquid, the difference in polarity between the filter core 300 material and the preloaded liquid, and the pore size of the filter core 300 ensure that the filter core 300 has a supporting effect on the preloaded liquid. This supporting force can overcome the gravity of the liquid, and thus keep the liquid in the second tube body.

[0043] During use, the sample on the swab is inserted into the second tube body 200 from the inlet 210, and the sample preservation liquid in the second tube body 200 can dissolve the sample on the swab. The swab remains in the second tube body 200, and the tube provided by the present application is placed in a centrifuge for centrifugation, so that the sample preservation liquid in the second tube body 200 enters the first tube body 100. Then the second tube body 200 is removed from the first tube body 100, and the second tube body 200 is separated from the first tube body 100, and then the sample in the first tube body 100 is detected.

[0044] For example, other items can also be used to collect samples, such as tweezers, swabs, etc. Samples can also be collected from sites other than the oropharynx, nose, and nasopharynx, such as the anus, eyeballs, and skin.

[0045] A filter element 300 is disposed at the outlet 220 of the second tube 200. When the sample preservation solution in the second tube 200 enters the first tube 100, the filter element 300 can filter impurities in the sample preservation solution, such as lint from a swab, food residue, mucus, etc. The filter element 300 reduces impurities and improves detection accuracy. Exemplarily, in one embodiment, the filter element 300 is made of a hydrophobic material, which prevents the sample preservation solution in the second tube 200 from entering the first tube 100. Even if the filter element 300 is made of a hydrophilic material, due to the surface tension of different preservation liquids and the different capillary forces formed by filter elements 300 with different pore sizes (the smaller the pore size, the greater the capillary force), the filter element 300 can still prevent the sample preservation solution in the second tube 200 from entering the first tube 100 to a certain extent. In practical applications, a very small amount of sample preservation solution may enter the first tube 100, but this will not affect the actual detection.

[0046] This application pre-fills the second tube 200 with liquid. The supporting force of the filter element 300, the surface tension of the liquid, and the capillary force formed by the microchannels inside the filter element 300 create a combined resistance force that allows the liquid to overcome its own gravity and remain in the second tube 200. This eliminates the need to add liquid to the second tube 200. The flocked swab can be placed in the second tube 200 without being removed, reducing manual operations such as squeezing the swab head and pinching the tube to drip the sample, thus improving detection efficiency. Furthermore, the filter element 300 reduces interference from swabs and other debris on the detection results, improving detection accuracy. The second tube 200 can also retain used flocked swabs, reducing the risk of contamination of the flocked swab sample.

[0047] like Figure 4 As shown, in one embodiment, the inner diameter of the second tube 200 gradually decreases along the Z-axis direction, so that the inner wall at the outlet 220 of the second tube 200 restricts the displacement of the filter element 300, preventing the filter element 300 from falling into the first tube 100, and the gradually decreasing inner diameter of the second tube 200 can, to some extent, hinder the flow of the sample preservation solution into the first tube 100.

[0048] The Z-axis is parallel to the axis of the second tube 200 and points from the inlet 210 to the outlet 220.

[0049] The stable installation of the filter core 300 is crucial for the accuracy of sample filtration and detection. This design ensures the stability of the filter core 300 through physical constraints, avoiding the impact of filter core 300 falling off on filtration, leading to a decrease in detection accuracy.

[0050] In one embodiment, the outer diameter of the filter core 300 remains consistent in the Z-axis direction, allowing the filter core 300 to fit tightly with the inner wall at the outlet 220 of the second tube body 200, further preventing the filter core 300 from falling into the first tube body 100, effectively preventing the filter core 300 from falling off due to vibration or external force during operation. This tight fit provides additional physical constraints to ensure the stability and reliability of the filter core 300.

[0051] In another embodiment, the outer diameter of the filter core 300 gradually decreases along the Z-axis direction, allowing the filter core 300 to better fit the inner wall at the outlet 220, reducing the deformation of the filter core 300 during installation and use due to compression or stretching. The reduction of deformation helps to prolong the service life of the filter core 300. By reducing deformation, it can be ensured that the filter core 300 can still maintain its designed filtration effect during long-term use.

[0052] By optimizing the fit between the filter core 300 and the second tube body 200, this design helps to enhance the integrity of the overall structure, not only improving the stability and durability of the equipment, but also ensuring the safety and accuracy of the sample during processing.

[0053] In one embodiment, the filter hole diameter of the filter core 300 is A, where 1 μm ≤ A ≤ 20 μm. Exemplarily, the filter hole diameter A of the filter core 300 is 1 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 3 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 5 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 8 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 10 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 15 μm. In another embodiment, the filter hole diameter A of the filter core 300 is 20 μm.

[0054] As shown in Figure 4 In one embodiment, a connecting sleeve 240 is provided on the second tube body 200, and the first tube body 100 and the second tube body 200 are connected in a sealed and detachable manner through the connecting sleeve 240.

[0055] In one embodiment, the connecting sleeve 240 is threadedly connected to the second tube body 200 and the first tube body 100, respectively.

[0056] But in another embodiment, the connecting sleeve 240 is integrally formed with the second tube body 200, and the connecting sleeve 240 is threadedly connected to the first tube body 100. AsFigure 7 As shown, the connecting sleeve 240 is installed at the mounting port 110 of the first pipe body 100, so that the second pipe body 200 is detachably connected with the first pipe body 100 through the connecting sleeve 240.

[0057] As shown, Figure 7 As shown, the inner wall of the connecting sleeve 240 is provided with an internal thread, as shown, Figure 2 As shown, the outer wall of the mounting port 110 of the first pipe body 100 is provided with an external thread, and the internal thread of the connecting sleeve 240 is threadedly matched with the external thread of the outer wall of the mounting port 110.

[0058] As shown, the outer wall of the connecting sleeve 240 is provided with anti-skid protrusions.

[0059] As shown, Figure 7 As shown, Figure 8 As shown in one embodiment, the inner wall of the outlet 220 of the second pipe body 200 is provided with a limiting ring 230, which is used to limit the displacement of the filter element 300.

[0060] As shown, the limiting ring 230 includes a first ring body and a second ring body, which are sequentially arranged on the inner wall of the outlet 220 along the Z-axis direction, and are spaced apart from each other, and the filter element 300 is arranged at the space between the first ring body and the second ring body. The displacement of the filter element 300 in the axial direction is limited by the first ring body, the displacement of the filter element 300 in the axial direction is limited by the second ring body, and the displacement of the filter element 300 in the radial direction is limited by the inner wall of the outlet 220, which prevents unnecessary displacement of the filter element 300 in these directions, which helps to improve the stability of the filter element 300 during operation and ensure that it can continuously and effectively perform the filtering operation.

[0061] The limiting ring 230 also prevents the filter element 300 from falling off, as the filter element 300 is firmly limited in the space between the first ring body and the second ring body, and even if it is subjected to external vibration or impact force, it is not likely to fall out of the outlet 220. This increases the safety and reliability of the mechanical structure.

[0062] As shown, the first ring body and the second ring body are fixedly arranged on the inner wall of the outlet 220 by welding, gluing, clamping or one-piece forming.

[0063] In one embodiment, the first pipe body 100 and the second pipe body 200 are detachably connected. The second pipe body 200 is conveniently removed from the first pipe body 100 to improve the detection efficiency. As shown, the first pipe body 100 and the second pipe body 200 are detachably connected by thread connection, clamping or the like. In another embodiment, the second pipe body 200 is inserted into the first pipe body 100, and the first pipe body 100 and the second pipe body 200 are transitionally fitted.

[0064] The first tube body 100 and the second tube body 200 are detachably connected, and the second tube body 200 can be quickly removed from the first tube body 100, so that the first tube body 100 can be quickly put on the machine for detection, and the detection efficiency is improved, especially when a large number of samples are detected.

[0065] As shown in FIG. 1, in one embodiment, the tube provided by the embodiment of the present application further comprises a connecting belt 260 and a cover 270. Figure 9 As shown in FIG. 1, one end of the connecting belt 260 is fixedly arranged. For example, one end of the connecting belt 260 is fixedly arranged on the second tube body 200. Exemplarily, the connecting belt 260 is fixedly connected with the second tube body 200 by welding, gluing, clamping or one-piece forming, etc. Alternatively, one end of the connecting belt 260 is fixedly arranged on the connecting sleeve 240 of the first tube body 100.

[0066] Figure 9 The other end of the connecting belt 260 is connected with the cover 270. Exemplarily, the connecting belt 260 is fixedly connected with the cover 270 by welding, gluing, clamping or one-piece forming, etc.

[0067] Exemplarily, the connecting belt 260 can be deformed. The cover 270 is installed at the inlet 210 of the second tube body 200 to close the inlet 210. As shown in FIG. 1, at this time, the cover 270 has been removed from the inlet 210, and the inlet 210 is in an open state.

[0068] Exemplarily, the connecting belt 260 can be deformed. The cover 270 is installed at the inlet 210 of the second tube body 200 to close the inlet 210. As shown in FIG. 1, at this time, the cover 270 has been removed from the inlet 210, and the inlet 210 is in an open state. Figure 7 Through the design of the connecting belt 260 and the cover 270, the user can conveniently close and open the inlet 210. The cover 270 can be tightly installed at the inlet 210 to ensure the sealing and safety of the sample. At the same time, when the sample needs to be taken out, the user can easily open the cover 270, and the operation is simple and fast.

[0069] The technical solutions of the connecting belt 260 and the cover 270 in the above embodiments can also be replaced by the following technical solutions: As shown in FIG. 1, in one embodiment, the tube provided by the embodiment of the present application further comprises a cover 250. As shown in FIG. 1 and FIG. 2, the cover 250 is detachably installed at the inlet 210 of the second tube body 200 to close the sample inlet 210. Exemplarily, the cover 250 is threadedly connected or clamped with the second tube body 200, and the following will take the cover 250 threadedly connected with the second tube body 200 as an example to explain the technical solutions of the present application.

[0070] Figure 3 Figure 1 Figure 7

[0071] ​​​​​Exemplarily, the inner wall of the cover 250 is provided with an internal thread, and the inlet 210 of the second tube body 200 is provided with an external thread matched with the internal thread of the cover 250, so that the cover 250 is threadedly connected with the second tube body 200.

[0072] The cover 250 is threadedly connected with the inlet 210 of the second tube body 200, which can ensure the tightness of the inlet 210 in the closed state. The thread connection can provide stable connection force, effectively prevent the sample preservation solution from leaking during storage or transportation, and thus ensure the integrity and safety of the sample.

[0073] The design of the thread connection makes the opening and closing operation of the cover 250 relatively simple. The user only needs to rotate the cover 250 to realize the connection or separation with the second tube body 200, without the need for additional tools or complex operation steps. This design improves the convenience of using the tube and reduces the operation difficulty.

[0074] Exemplarily, as shown in Figure 3 The anti-slip protrusions provided on the outer wall of the cover 250 increase the holding stability of the user when operating the cover 250. This design helps to prevent operation errors caused by slipping hands when rotating the cover 250, and improves the safety and accuracy of the operation. The thread connection structure is relatively stable and can withstand certain external forces. At the same time, the thread cooperation between the cover 250 and the second tube body 200 can ensure that it is not easy to loosen or damage during long-term use, thereby prolonging the service life of the tube provided by the embodiment of the present application.

[0075] In one embodiment, the tube provided by the embodiment of the present application further comprises a heat-seal film, which is arranged at the inlet 210 to close the inlet 210 by the heat-seal film to fully maintain the sealing property, which can prevent the sample preservation solution from entering the first tube body 100 before centrifugation. If the sample preservation solution enters the first tube body 100 before centrifugation, it will cause the sample preservation solution in the second tube body 200 to decrease, the sample on the flocked swab to be incompletely dissolved, and thus affect the detection accuracy.

[0076] The heat-seal film not only plays a closing role, but also effectively prevents sundries from entering the first tube body 100 and the second tube body 200 from the inlet 210. This helps to reduce the risk of sample contamination and improve the quality of sample preservation.

[0077] The heat-seal film usually has high sealing performance, which can ensure the complete closure of the inlet 210. This sealing property is of great significance to prevent the sample preservation solution from evaporating, gas leaking, etc., and can prolong the preservation time of the sample preservation solution.

[0078] Before the flocked swab is inserted into the second tube body 200, the heat-seal film can be directly torn off.

[0079] In a second aspect, embodiments of the present application also provide a workstation, which is a space or tool designed to support a specific type of work. The workstation comprises a centrifugal device, a detection device, and a tube according to any of the above embodiments.

[0080] The centrifugal device is used to centrifuge the tube, for example, a centrifuge.

[0081] The detection device is used to detect biological parameters of the sample in the tube, for example, an electrophoresis instrument for separating and analyzing biological macromolecules (such as DNA, RNA, and proteins, etc.), a mass spectrometer for analyzing organic compounds (such as proteins, nucleic acids, etc.) in biological samples, or at least a chemiluminescence immunoassay instrument capable of detecting blood or its extract, etc.

[0082] Exemplarily, the first tube body is provided in a cylindrical shape, and the centrifugal device and the detection device are provided with sample holders for mounting the first tube body. The first tube body is provided in a cylindrical shape that is adapted to the sample holders on the centrifugal device and the detection device, thereby improving the versatility.

[0083] In one embodiment, the workstation further comprises a processing device and a waste storage device for storing waste.

[0084] The processing device comprises a moving unit and a separating unit. The moving unit is used to move the first tube body 100 from the centrifugal device to the detection device. The separating unit is used to separate the second tube body 200 of the tube from the first tube body 100 of the tube and place the second tube body into the waste storage device.

[0085] In use, the tube provided by the embodiments of the present application is first mounted on the centrifugal device for centrifugation. After centrifugation, the tube is moved from the centrifugal device to the detection device by the moving unit, and then the second tube body 200 is removed from the first tube body 100 and placed into the waste storage device. Then, the detection device detects the biological parameters of the sample in the first tube body 100, such as DNA, RNA, and protein species, etc. It should be understood that the steps of removing the second tube body 200 from the first tube body 100 by the separating unit and placing it into the waste storage device can also be performed synchronously with the step of moving the tube from the centrifugal device to the detection device by the moving unit, i.e., when the moving unit moves the first tube body 100 (with the second tube body 200 on it) from the centrifugal device to the detection device, the separating unit simultaneously removes the second tube body 200 from the first tube body 100 and places it into the waste storage device.

[0086] The moving unit and the separating unit are, for example, two mechanical arms, one of which is used to move the first tube body 100 from the centrifugal device to the detection device, and the other of which is used to remove the second tube body 200 from the first tube body 100, for example, by rotating the second tube body 200 to disengage the second tube body 200 and the connecting sleeve 240 from the first tube body 100. In another embodiment, the moving unit is, for example, a conveyor belt and a mechanical arm, the mechanical arm places the tube on the conveyor belt after taking it off the centrifugal device, the conveyor belt conveys the tube to the detection device, and then another mechanical arm places the tube on the detection device.

[0087] It should be noted that the features of the embodiments in the present application can be combined with each other without conflict.

[0088] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tube characterized in that, Comprising: a first tube body (100) provided with a mounting port (110); a second tube body (200), the first tube body (100) is sleeved on the second tube body (200), the second tube body (200) is sealed detachably connected at the mounting port (110) of the first tube body (100), the second tube body (200) is provided with an inlet (210) and an outlet (220), the inlet (210) is located at one end of the second tube body (200) close to the mounting port (110), the outlet (220) is in communication with the inside of the first tube body (100), and the second tube body (200) is preloaded with a liquid; a filter element (300) is arranged at the second tube body (200) close to the outlet (220); after the inlet (210) of the second tube body (200) is sealed, the preloaded liquid is stably maintained above the filter element (300).

2. The pipe according to claim 1, characterized in that The inner diameter of the second tube body (200) gradually decreases along the Z-axis direction, and the Z-axis direction is parallel to the axis of the second tube body (200) and points from the inlet (210) to the outlet (220).

3. The pipe of claim 2, wherein, Along the Z-axis direction, the outer diameter of the filter element (300) gradually decreases or remains the same.

4. The pipe of claim 1, wherein The filter hole diameter of the filter element (300) is A, wherein 1μm≤A≤20μm.

5. The pipe of claim 1, wherein A limiting ring (230) is arranged on the inner wall of the outlet (220) of the second tube body (200), and the limiting ring (230) is used to limit the displacement of the filter element (300).

6. The pipe of claim 1, wherein A connecting sleeve (240) is arranged on the second tube body (200), and the first tube body (100) and the second tube body (200) are sealed detachably connected through the connecting sleeve (240).

7. The pipe of claim 6, wherein The connecting sleeve (240) is respectively screwed with the second tube body (200) and the first tube body (100).

8. The pipe of claim 6, wherein, The connecting sleeve (240) and the second tube body (200) are integrally formed; The connecting sleeve (240) is screwed with the first tube body (100).

9. The pipe of claim 1, wherein Further comprising: a connecting band (260), one end of the connecting band (260) is fixedly arranged; a buckle cover (270) connected with the other end of the connecting band (260), the buckle cover (270) is installed at the inlet (210) of the second tube body (200) to close the inlet (210).

10. The pipe of claim 1, wherein Further comprising: a cover (250) detachably installed at the inlet (210) of the second tube body (200) to close the inlet (210).

11. The pipe according to any one of claims 1 to 9, characterized in that Further comprising: a heat-seal film arranged at the inlet (210) to close the inlet (210) through the heat-seal film to maintain the sealing of the first tube body (100) and the second tube body (200).

12. A workstation, characterized by Comprising: the tube according to any one of claims 1 to 11; a centrifugal device for centrifuging the tube; a detection device for detecting a biological parameter of the sample inside the tube.

13. The workstation of claim 12, wherein, Further comprising a processing device and a waste storage device for storing waste, the processing device comprising a moving unit for moving the first tube (100) from the centrifugation device to the detection device; and a separating unit for separating the second tube (200) of the tube from the first tube (100) of the tube and placing the second tube into the waste storage device.

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