Tube supporting plate and sample injection device

Abstract

This tube supporting plate includes a plate and a cover. The plate holds microtubes in a state in which a lid is not attached to an upper opening of a container body. The cover has formed therein through-holes corresponding to the container body, and the cover is disposed above a seal.

Description

Tube support plate and sample injection device

[0001] The present invention relates to a tube support plate and a sample injection device.

[0002] Sample injection devices are known as devices that inject samples contained in sample containers into analytical devices such as chromatographs. For example, in the sample injection device described in Patent Document 1, a sample container containing a sample is set. A sealing member such as a septum is attached to the top opening of the sample container. A lid having an opening that exposes the sealing member is also attached to the top of the sample container.

[0003] The needle of the syringe of the sample injection device penetrates the seal member exposed from the opening of the lid and is inserted into the sample in the container body. In this state, when the plunger of the syringe is pulled up, the sample in the sample container is sucked into the barrel of the syringe through the needle. Also, when the plunger is pushed down with the needle inserted into the sample injection unit of the analyzer, the sample in the barrel is injected into the sample injection unit through the needle.

[0004] Japanese Patent Application Laid-Open No. 2021-25907

[0005] Microtubes are known as general-purpose containers for holding samples. Because they are inexpensive, microtubes are used for a wide range of sample processing applications. For example, because a lid can be easily attached to the container body, microtubes are used for sample pretreatment, such as centrifugation. Microtubes can also be used as sample containers for holding samples to be analyzed.

[0006] However, when a microtube with a lid attached to a sample container is set in a sample injection device, excessive force is applied to the needle of the syringe as it penetrates the lid of the microtube, which can cause the needle to deteriorate or bend.Furthermore, when the needle is pulled out of the lid, the microtube may lift up.

[0007] On the other hand, if a microtube is placed in a sample injection device without a lid attached to the sample container, the sample may volatilize and corrode the sample injection device, making it impossible to store samples such as acids in the sample container. Furthermore, if the sample volatilizes while waiting for analysis, quantitative analysis of the sample cannot be performed with high reliability. Thus, when using a microtube, sample analysis may not be performed properly.

[0008] An object of the present invention is to provide a tube support plate and a sample injection device that enable appropriate analysis of samples using microtubes.

[0009] One aspect of the present invention relates to a tube support plate for supporting a microtube in which a container body and a lid portion are integrally formed, the tube support plate comprising: a plate body that holds the microtube with the lid portion not attached to the upper opening of the container body; a seal that is placed above the container body of the microtube held by the plate body; and a cover that has a first through hole corresponding to the container body and is placed above the seal.

[0010] Another aspect of the present invention relates to a tube support plate for supporting a microtube having a container body and a lid portion integrally formed therewith using a seal, the tube support plate comprising: a plate body that holds the microtube when the lid portion is not attached to the top opening of the container body; and a cover that has a first through hole formed therein corresponding to the container body and is positioned above the seal.

[0011] Yet another aspect of the present invention relates to a sample injection device comprising the above-mentioned tube support plate and a sampling needle that is inserted into the container body of the microtube through the first through hole formed in the cover of the tube support plate.

[0012] According to the present invention, it is possible to appropriately analyze a sample using a microtube.

[0013] Fig. 1 is a block diagram showing the configuration of an analytical apparatus including a sample injection device according to one embodiment of the present invention. Fig. 2 is an enlarged perspective view showing a portion of the sample injection device. Fig. 3 is a schematic diagram showing the configuration of a microtube. Fig. 4 is an exploded perspective view of a tube support plate. Fig. 5 is an enlarged perspective view showing a portion of the plate body. Fig. 6 is a perspective view showing the lower part of the cover.

[0014] 1. Configuration of the Analytical Apparatus A tube support plate and a sample injection device according to an embodiment of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an analytical apparatus including a sample injection device according to one embodiment of the present invention. As shown in FIG. 1, in this example, the analytical apparatus 300 is a liquid chromatograph and includes a sample injection device 200, a mobile phase bottle 310, a liquid delivery pump 320, a column oven 330, and a detector 340. The mobile phase bottle 310 stores a liquid mobile phase such as an aqueous solution or an organic solvent. The liquid delivery pump 320 pumps the mobile phase stored in the mobile phase bottle 310 downstream.

[0015] Figure 2 is an enlarged perspective view showing a portion of the sample injection device 200. As shown in Figure 2, the sample injection device 200 includes the sampling needle 210 (hereinafter simply referred to as the needle 210) of Figure 1 and a rack 220. The sample injection device 200 also includes a needle drive unit (not shown) that drives the needle 210. The tube support plate 100 is placed on the rack 220. In the example of Figure 2, three tube support plates 100 are placed on the rack 220 so as to be aligned in a row.

[0016] The tube support plate 100 supports a plurality of microtubes 10. Fig. 3 is a schematic diagram showing the configuration of the microtube 10. As shown in the left region of Fig. 3, the microtube 10 includes a container body 11, a lid 12, and a connecting member 13. The container body 11, the lid 12, and the connecting member 13 are integrally formed from, for example, a resin material. The upper side of the container body 11 and the side of the lid 12 are connected by the connecting member 13.

[0017] The user can attach the lid 12 to the container body 11 by folding the connecting member 13 inward and pushing the lid 12 into the top opening of the container body 11, as shown in the right region of Fig. 3. The lid 12 has claws 12a that protrude laterally formed on its sides. The user can remove the lid 12 from the container body 11 by pinching the claws 12a and pulling up the lid 12, as shown in the left region of Fig. 3.

[0018] Each microtube 10 is supported by the tube support plate 100 with the sample to be analyzed contained in the container body 11 and the lid 12 not attached to the container body 11. Details of the tube support plate 100 will be described later. The sample injection device 200 in Figure 1 aspirates a sample from any of the microtubes 10 supported by the tube support plate 100 using a needle 210, and injects the aspirated sample into a mobile phase pumped by a liquid delivery pump 320.

[0019] The column oven 330 houses a separation column 331 and maintains the housed separation column 331 at a predetermined constant temperature. A sample injected by the sample injection device 200 is introduced into the separation column 331 together with a mobile phase. The separation column 331 separates the introduced sample into individual components based on differences in chemical properties or composition. The detector 340 detects the sample components separated by the separation column 331 and outputs a detection signal indicating the detection intensity. The detection signal output by the detector 340 is used to generate a chromatogram indicating the relationship between the retention time and detection intensity of each component of the sample.

[0020] 2. Tube Support Plate Hereinafter, to facilitate the description of the structure of the tube support plate 100, two orthogonal directions in a horizontal plane are defined as a first direction and a second direction, respectively. Figure 4 is an exploded perspective view of the tube support plate 100. As shown in Figure 4, the tube support plate 100 includes a plate body 110, a seal 120, a cushion 130, and a cover 140.

[0021] The plate body 110 has a generally rectangular shape with one pair of sides extending in a first direction and the other pair of sides extending in a second direction. In this example, the plate body 110 is made of polypropylene, but the embodiment is not limited thereto. The plate body 110 may be made of other resins or metals. A plurality of protrusions 111 protruding upward and arranged in a first direction and a second direction are formed on the upper surface of the plate body 110. In this example, three protrusions 111 are arranged in the first direction and eight protrusions 111 are arranged in the second direction. Therefore, 24 protrusions 111 are formed on the upper surface of the plate body 110.

[0022] FIG. 5 is an enlarged perspective view showing a portion of the plate body 110. As shown in FIG. 5, a circular bottomed hole 112 is formed in the upper end surface of each protrusion 111. The depth of the bottomed hole 112 is smaller than the vertical length of the container body 11 of the microtube 10. The diameter of the bottomed hole 112 is slightly larger than the outer diameter (diameter) of the lower part of the container body 11. In addition, a plurality of slits 113 corresponding to the plurality of protrusions 111 are formed in the upper surface of the plate body 110. Each slit 113 is adjacent to the corresponding protrusion 111 in the first direction, has a predetermined depth, and extends in the second direction. The width of the slit 113 in the first direction is slightly larger than the thickness of the claw portion 12a of the microtube 10.

[0023] The bottom of the container body 11 of the microtube 10 is fitted into the bottomed hole 112 of each protrusion 111. Furthermore, by bending the connection member 13 of the microtube 10 outward, the claws 12a of the microtube 10 are fitted into the slits 113 corresponding to the protrusion 111. In this way, a plurality of (24 in this example) microtubes 10 are held by the plate body 110 in a state where the lids 12 are not attached to the container body 11. The upper openings of the container bodies 11 of the plurality of microtubes 10 held by the plate body 110 are at approximately the same height.

[0024] As shown in Fig. 4, the seal 120 has a generally rectangular shape that is substantially the same as the outer shape of the plate body 110. The seal 120 is basically a disposable member, and is formed from a metal foil having a thickness that allows the needle 210 in Fig. 1 to easily penetrate it. In this example, the seal 120 is formed from aluminum having a thickness of, for example, about 10 µm. The seal 120 is disposed above the plate body 110 so as to cover the upper openings of the multiple container bodies 11 held by the plate body 110.

[0025] The cushion 130 has a generally rectangular shape that is substantially the same as the outer shape of the plate body 110. The thickness of the cushion 130 is, for example, 5 mm or more. In this example, the cushion 130 is formed from a resin sponge, but the embodiment is not limited to this. The cushion 130 may be formed from an elastic body such as rubber. The cushion 130 has a plurality of circular through holes 131 formed therein that correspond respectively to the plurality of bottomed holes 112 of the plate body 110. The diameter of each through hole 131 is larger than the diameter of the needle 210 in FIG. 1 . The diameter of each through hole 131 may be smaller than the diameter of the top opening of the container body 11. The cushion 130 is disposed above the seal 120.

[0026] The cover 140 is made of, for example, metal, and includes a cover body 141 and a pair of arms 142. The cover body 141 has a generally rectangular shape that is substantially the same as the outer shape of the plate body 110. The cover body 141 has a plurality of circular through-holes 143 that correspond to the plurality of bottomed holes 112 of the plate body 110. The diameter of each through-hole 143 is larger than the diameter of the needle 210 in FIG. 1 . The diameter of each through-hole 143 may be approximately the same as the diameter of each through-hole 131 of the cushion 130.

[0027] The pair of arms 142 extend downward from both side portions of the cover body 141 in the second direction. Two latching claws 144 are provided on the lower portion of each arm 142 so as to be aligned in the first direction. The cover body 141 is disposed above the cushion 130. The pair of arms 142 extend to the upper surface of the plate body 110, passing through the sides of the cushion 130 and the seal 120. The multiple latching claws 144 of the pair of arms 142 are respectively latched into multiple latching holes (not shown) provided on the upper surface of the plate body 110.

[0028] According to the above configuration, the seal 120 and the cushion 130 are disposed between the plate body 110 and the cover body 141 of the cover 140, and the cover 140 is attached to the plate body 110 with the cushion 130 in a crushed state. The amount of crushing of the cushion 130 may be, for example, 0.5 mm or more and 3 mm or less. In this case, the seal 120 is appropriately pressed against the multiple container bodies 11 by the cushion 130. This allows the top openings of the container bodies 11 to be appropriately closed. In this example, the amount of crushing of the cushion 130 is approximately 1 mm.

[0029] 3. Cover In this embodiment, the seal 120 and the cushion 130 are held by the cover 140 and disposed between the plate body 110 and the cover body 141. Fig. 6 is a perspective view showing the lower part of the cover 140. Note that Fig. 6 illustrates the seal 120, the cushion 130, and the cover 140 with their respective lower parts facing upward.

[0030] As shown in Figure 6, sidewall portions 145 are formed on each side of the cover body 141, protruding downward by a predetermined distance over substantially the entire surface. The length of each sidewall portion 145 in the vertical direction may be approximately the same as the thickness of the cushion 130 in an unpressured state. A retaining piece 146 is formed on the lower portion of at least one sidewall portion 145, protruding inward. In this example, the retaining piece 146 is formed in the lower center portion of each of the two sidewall portions 145 parallel to the first direction and the one sidewall portion 145 parallel to the second direction.

[0031] The cushion 130 and the seal 120 are sequentially fitted between the underside of the cover body 141 and one or more (three in this example) retaining pieces 146. That is, as shown in Fig. 6 , first, the cushion 130 is fitted between the cover body 141 and the retaining piece 146. Next, as shown by the dashed-dotted arrow in Fig. 6 , the seal 120 is fitted between the cushion 130 and the retaining piece 146.

[0032] According to the above configuration, the seal 120 and the cushion 130 are held integrally by the cover 140. Therefore, by attaching the cover 140 to the plate body 110, the seal 120 and the cushion 130 can be easily disposed between the plate body 110 and the cover body 141 of the cover 140 when the cushion 130 is crushed. In this example, a notch is formed in one or more side wall portions 145 so as to expose the side surface of the cushion 130 held by the cover 140. This allows the cushion 130 to be easily removed from the cover 140 when, for example, replacing the cushion 130.

[0033] In this way, the cover 140 further has a retaining piece that holds the cushion 130 and the seal 120 below the cover body 141. In this case, the cover 140, the cushion 130, and the seal 120 can be handled as a single unit, thereby improving the ease of handling of the tube support plate 100.

[0034] 4. Effects In the tube support plate 100 according to this embodiment, the microtube 10 is supported without the lid 12 being attached to the top opening of the container body 11. The top opening of the container body 11 is covered with the seal 120 while being pressed by the cushion 130. When sampling the sample contained in the container body 11, the needle 210 of the sample injection device 200 penetrates the seal 120 and is inserted into the container body 11 through the through-hole 143 formed in the cover body 141.

[0035] According to this configuration, the needle 210 does not penetrate the lid portion 12. Therefore, damage to the needle 210 is prevented. Furthermore, lifting of the microtube 10 when the needle 210 is withdrawn is prevented. Furthermore, since sample volatilization is suppressed by the seal 120, corrosion of the sample injection device 200 due to sample volatilization is prevented even when a sample such as an acid is contained in the sample container. Furthermore, since the sample hardly volatilizes even while waiting for analysis, quantitative analysis of the sample can be performed with high reliability. As a result, sample analysis can be performed appropriately using the microtube 10. Furthermore, since the microtube 10 is inexpensive, the cost required for analysis can be reduced.

[0036] The cushion 130 has a through-hole 131 formed therein that corresponds to the container body 11. In this case, the sample does not adhere to the cushion 130 when the needle 210 is pulled out. This reduces the frequency with which the cushion 130 needs to be replaced. Furthermore, the seal 120 is made of disposable metal foil. In this case, by periodically replacing the seal 120, cross-contamination of the sample via the seal 120 can be prevented.

[0037] The diameter of the through-hole 131 of the cushion 130 is smaller than the diameter of the upper opening of the container body 11. Furthermore, the amount of compression of the cushion 130 when the cover 140 is attached to the plate body is 0.5 mm or more and 3 mm or less. In these cases, the cushion 130 presses the container body 11 more firmly via the seal 120. Furthermore, when the cushion 130 is made of a resin sponge, the cushion 130 presses the container body 11 more uniformly via the seal 120. Therefore, the container body 11 can be supported more stably.

[0038] A bottomed hole 112 into which the container body 11 is fitted is formed in the protrusion 111 on the upper surface of the plate body 110. In this case, the plate body 110 can easily hold the container body 11. In addition, a slit 113 into which the claw portion 12a of the lid portion 12 is fitted is further formed on the upper surface of the plate body 110 so as to be adjacent to the bottomed hole 112. This allows the plate body 110 to easily hold the microtube 10 in a state where the lid portion 12 is not attached to the upper opening of the container body 11.

[0039] 5. Other Embodiments (1) In the above embodiment, the diameter of the through-hole 131 of the cushion 130 is smaller than the diameter of the upper opening of the container body 11, but the embodiment is not limited to this. The diameter of the through-hole 131 of the cushion 130 may be equal to or larger than the diameter of the upper opening of the container body 11. Furthermore, if the cushion 130 is replaced at a relatively short interval, the through-hole 131 may not be formed in the cushion 130.

[0040] (2) In the above embodiment, the amount of compression of the cushion 130 when the cover 140 is attached to the plate body 110 is 0.5 mm or more and 3 mm or less, but the embodiment is not limited to this. The amount of compression of the cushion 130 in this state may be less than 0.5 mm or more than 3 mm.

[0041] (3) In the above embodiment, the cushion 130 and the seal 120 are held by the cover 140, but the embodiment is not limited to this. Only the cushion 130 may be held by the cover 140, and the seal 120 may not be held by the cover 140. Alternatively, both the cushion 130 and the seal 120 may not be held by the cover 140. In this case, the holding piece 146 is not formed on the cover 140.

[0042] (4) In the above embodiment, the protrusion 111 is formed on the upper surface of the plate body 110, but the embodiment is not limited to this. If the plate body 110 has a sufficiently large thickness, the protrusion 111 does not need to be formed on the upper surface of the plate body 110. In this case, a bottomed hole 112 is formed on the upper surface of the plate body 110. Note that a through hole may be formed in the plate body 110 instead of the bottomed hole 112.

[0043] (5) In the above embodiment, the slit 113 is formed in the plate body 110, but the embodiment is not limited to this. As long as the plate body 110 can hold the microtube 10 in a state where the lid 12 is not attached to the container body 11, the slit 113 does not have to be formed in the plate body 110.

[0044] (6) In the above embodiment, the tube support plate 100 includes the seal 120, but the embodiment is not limited to this. The seal 120 may be distributed separately as a disposable consumable item for replacement. Therefore, the tube support plate 100 may be distributed as a product including the plate body 110, cushion 130, and cover 140 without including the seal 120. In this case, a user who purchases the tube support plate 100 including the plate body 110, cushion 130, and cover 140 would use the tube support plate 100 by placing the separately purchased seal 120 below the cushion 130.

[0045] (7) In the above embodiment, the tube support plate 100 includes the cushion 130. However, the embodiment is not limited to this. If the seal 120 has elasticity, the tube support plate 100 does not need to include the cushion 130.

[0046] 6. Aspects It will be understood by those skilled in the art that the above exemplary embodiments are examples of the following aspects.

[0047] (Item 1) A tube support plate according to one embodiment is a tube support plate for supporting a microtube in which a container body and a lid portion are integrally formed, and may include: a plate body that holds the microtube with the lid portion not attached to the top opening of the container body; a seal that is placed above the container body of the microtube held by the plate body; and a cover that has a first through-hole formed therein corresponding to the container body and is placed above the seal.

[0048] This tube support plate supports a microtube without attaching a lid to the top opening of the container body. The top opening of the container body is covered with a seal. When sampling a sample contained in the container body, a sampling needle penetrates the seal and is inserted into the container body through a first through-hole formed in the cover body.

[0049] With this configuration, the sampling needle does not penetrate the lid. This prevents damage to the sampling needle. Furthermore, the microtube is prevented from lifting when the sampling needle is pulled out. Furthermore, the seal suppresses sample volatilization, preventing corrosion of the sample injection device due to sample volatilization even when an acid or other sample is contained in the sample container. Furthermore, since the sample hardly volatilizes even while waiting for analysis, quantitative analysis of the sample can be performed with high reliability. As a result, sample analysis can be performed appropriately using the microtube.

[0050] (Item 2) The tube support plate described in item 2 may further include a cushion disposed between the seal and the cover, and the cushion may be attached to the plate body in a state where it is crushed by the cover. In this case, the top opening of the container body is covered by the seal in a state where it is pressed by the cushion. This allows the top opening of the container body to be properly closed.

[0051] (Item 3) In the tube support plate described in item 2, the cushion may be formed with a second through-hole corresponding to the container body.

[0052] In this case, the sample does not adhere to the cushion when the sampling needle is removed, which reduces the frequency of cushion replacement.

[0053] (Item 4) In the tube support plate described in item 3, the diameter of the second through hole of the cushion may be smaller than the diameter of the upper opening of the container body.

[0054] In this case, the container body is pressed more firmly by the cushion via the seal, thereby making it possible to support the container body more stably.

[0055] (Item 5) In the tube support plate described in any one of items 2 to 4, the amount of compression of the cushion when the cover is attached to the plate body may be 0.5 mm or more and 3 mm or less.

[0056] In this case, the container body is pressed more firmly by the cushion via the seal, thereby making it possible to support the container body more stably.

[0057] (Item 6) In the tube support plate described in any one of Items 2 to 5, the cover may further have a cover body in which the first through hole is formed, and a retaining piece provided below the cover body and holding the cushion below the cover body.

[0058] In this case, the cover and the cushion can be handled as a single unit, which improves the ease of handling of the tube support plate.

[0059] (Item 7) In the tube support plate described in item 6, the holding piece may further hold the seal below the cushion.

[0060] In this case, in addition to the cover and the cushion, the seal can be handled as a single unit, which further improves the ease of handling of the tube support plate.

[0061] (Item 8) In the tube support plate described in any one of Items 1 to 7, the plate body may be formed with an opening into which the container body is fitted.

[0062] In this case, the plate body can easily hold the container body.

[0063] (Item 9) In the tube support plate described in item 8, the lid portion may be formed with a claw portion, and the plate body may further be formed with a slit adjacent to the opening into which the claw portion of the lid portion is fitted.

[0064] In this case, the plate body can easily hold the microtube in a state where the lid is not attached to the upper opening of the container body.

[0065] (10) In the tube support plate described in any one of paragraphs 2 to 9, the cushion may be formed of a resin sponge.

[0066] In this case, the cushion presses the container body more uniformly via the seal, thereby making it possible to support the container body more stably.

[0067] (Item 11) In the tube support plate according to any one of items 1 to 10, the seal may be a disposable metal foil.

[0068] In this case, by periodically replacing the seal, cross-contamination of the sample through the seal can be prevented.

[0069] (Item 12) Another aspect of the tube support plate is a tube support plate for supporting a microtube in which a container body and a lid portion are integrally formed using a seal, and may include a plate body that holds the microtube in a state in which the lid portion is not attached to the top opening of the container body, and a cover in which a first through hole corresponding to the container body is formed and which is positioned above the seal.

[0070] In this tube support plate, the sampling needle does not penetrate the lid. This prevents the sampling needle from deteriorating or bending. Furthermore, the microtube is prevented from lifting up when the sampling needle is pulled out. Furthermore, because the seal suppresses sample volatilization, corrosion of the sample injection device due to sample volatilization is prevented even when a sample such as an acid is contained in the sample container. Furthermore, because the sample hardly volatilizes even while waiting for analysis, quantitative analysis of the sample can be performed with high reliability. As a result, sample analysis can be performed appropriately using microtubes.

[0071] (Item 13) A sample injection device according to yet another aspect may comprise a tube support plate described in any one of items 1 to 12, and a sampling needle that is inserted into the container body of the microtube through the first through hole formed in the cover of the tube support plate.

[0072] In this sample injection device, the above-mentioned tube support plate is provided, so that sample analysis can be carried out appropriately using microtubes.

Claims

1. A tube support plate for supporting a microtube having a container body and a lid formed integrally therewith, comprising: a plate body that holds the microtube with the lid not attached to an upper opening of the container body; a seal that is placed above the container body of the microtube held by the plate body; and a cover in which a first through hole corresponding to the container body is formed and that is placed above the seal.

2. The tube support plate according to claim 1, further comprising a cushion disposed between said seal and said cover, said cushion being attached to said plate body in a state where it is compressed by said cover.

3. The tube support plate according to claim 2, wherein said cushion is formed with a second through hole corresponding to said container body.

4. The tube support plate according to claim 3, wherein the diameter of said second through hole of said cushion is smaller than the diameter of said upper opening of said container body.

5. A tube support plate as claimed in any one of claims 2 to 4, wherein the amount of compression of the cushion when the cover is attached to the plate body is between 0.5 mm and 3 mm.

6. A tube support plate as described in any one of claims 2 to 4, wherein the cover further has a cover body in which the first through hole is formed, and a retaining piece provided below the cover body and holding the cushion below the cover body.

7. The tube support plate of claim 6, wherein said retention piece further retains said seal beneath said cushion.

8. A tube support plate according to any one of claims 1 to 4, wherein the plate body is formed with an opening into which the container body is fitted.

9. The tube support plate according to claim 8, wherein said lid portion is formed with a claw portion, and said plate body is further formed with a slit adjacent to said opening, into which said claw portion of said lid portion is fitted.

10. A tube support plate according to any one of claims 2 to 4, wherein the cushion is formed from a resin sponge.

11. A tube support plate as claimed in any one of claims 1 to 4, wherein the seal is provided by a disposable metal foil.

12. A tube support plate for supporting a microtube having a container body and a lid integrally formed therewith using a seal, comprising: a plate body that holds the microtube with the lid not attached to an upper opening of the container body; and a cover in which a first through hole corresponding to the container body is formed and which is positioned above the seal.

13. A sample injection device comprising: a tube support plate as described in any one of claims 1, 2, 3, 4 and 12; and a sampling needle that is inserted into the container body of the microtube through the first through hole formed in the cover of the tube support plate.

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