Container

Abstract

To provide a container capable of stabilizing a dropping amount.SOLUTION: The container according to the present embodiment includes a storage portion for storing a liquid and a nozzle for dropping the liquid stored in the storage portion. The nozzle includes a nozzle body and a tip portion. The front end portion is positioned at a front end of the nozzle main body and causes the liquid supplied from the nozzle main body to fall along a spherical cap. Accordingly, in the container according to the present embodiment, the dropping amount can be stabilized.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] The embodiments disclosed in this specification and drawings relate to a container. [Background technology]

[0002] Test containers for storing test solutions are known. Such containers are used, for example, in nucleic acid tests to confirm the species of an organism or the presence or absence of expression of a specific gene. In nucleic acid tests, the volume of the test solution (hereinafter referred to as the solution) must be accurately measured. When accuracy is required, a dedicated tool such as a micropipette is used. By using the dedicated tool, an operator can accurately collect (suck) and drip (discharge) the solution. However, when an operator collects and drips a solution using the dedicated tool, the type of operator who can do so is limited, as the operator must be familiar with how to use the dedicated tool.

[0003] Therefore, when ease of operation is required, a container with a nozzle, such as a simple pipette (e.g., Komagome pipette), is used. By using a container with a nozzle, an operator can easily collect and drip a solution. For example, an operator can drip a specified number of solutions using a container with a nozzle. However, an operator may tilt the nozzle when dripping a solution using a container with a nozzle. In this case, the amount of drip per drop may change depending on the tilt angle of the nozzle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-123220 Summary of the Invention [Problem to be solved by the invention]

[0005] One of the problems to be solved by the embodiments disclosed in this specification and the drawings is to provide a container that can stabilize the amount of dripping. However, the problems to be solved by the embodiments disclosed in this specification and the drawings are not limited to the above problem. Problems corresponding to the effects of each configuration shown in the embodiments described below can also be positioned as other problems. [Means for solving the problem]

[0006] The container according to this embodiment includes a container for containing a liquid and a nozzle for dripping the liquid contained in the container. The nozzle includes a nozzle body and a tip. The tip is located at the tip of the nozzle body and causes the liquid supplied from the nozzle body to fall down a spherical crown. [Brief explanation of the drawings]

[0007] [Figure 1A] FIG. 1A is a side view showing an example of the configuration of a container according to this embodiment. [Figure 1B] FIG. 1B is a side view for explaining the effect of the container according to this embodiment. [Figure 2A] FIG. 2A is a side view showing an example of the configuration of a container according to the first embodiment. [Figure 2B] FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A. [Figure 2C] FIG. 2C is a cross-sectional view taken along line BB in FIG. 2A. [Figure 3A] FIG. 3A is a side view showing an example of the configuration of a container according to the second embodiment. [Figure 3B] FIG. 3B is a cross-sectional view taken along line AA in FIG. 3A. [Figure 4A] FIG. 4A is a side view showing an example of the configuration of a container according to a third embodiment. [Figure 4B] FIG. 4B is a cross-sectional view taken along line AA in FIG. 4A. [Figure 5A] FIG. 5A is a side view showing an example of the configuration of a container according to a fourth embodiment. [Figure 5B] FIG. 5B is a cross-sectional view taken along line AA in FIG. 5A. [Figure 6A] FIG. 6A is a side view showing an example of the configuration of a container according to a modified example of the fourth embodiment. [Figure 6B] FIG. 6B is a cross-sectional view taken along line AA in FIG. 5A. [Figure 7A] FIG. 7A is a side view showing an example of the configuration of a nozzle-equipped container. [Figure 7B] FIG. 7B is a side view for explaining the problem with the container of FIG. 7A. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the container will be described in detail with reference to the drawings. Note that the embodiments are not limited to the following embodiments. Furthermore, the content described in one embodiment is, in principle, also applicable to other embodiments.

[0009] For example, when collecting and dripping a solution using a specialized tool such as a micropipette, the worker must be familiar with how to use the specialized tool. However, by using a container with a nozzle, such as a simple pipette, the worker can easily collect and drip the solution.

[0010] 7A is a side view showing an example of the configuration of a nozzle-equipped container (hereinafter referred to as container 1100) according to a comparative example. As shown in Fig. 7A, container 1100 includes a storage section 1110 that stores a solution, and a nozzle 1120 for dripping the solution stored in storage section 1110. For example, an operator can drip the solution stored in storage section 1110 by pressing storage section 1110.

[0011] 7A shows a state in which nozzle 1120 is held upright. For example, an operator can press storage unit 1110 with nozzle 1120 held upright to dispense a specified number of drops of the solution contained in storage unit 1110.

[0012] Here, the nozzle 1120 is a hollow nozzle with a tapered shape, and the tip of the nozzle 1120 is left uncut. The problems with the nozzle 1120 will be specifically described below.

[0013] Fig. 7B is a side view illustrating a problem with container 1100 in Fig. 7A. For example, if an operator tilts nozzle 1120 when dripping a solution using container 1100, the amount of dripping per droplet may change depending on the tilt angle of nozzle 1120. This will be specifically described using Figs. 7A and 7B.

[0014] The example shown in FIG. 7B shows a state in which the nozzle 1120 is tilted at 45 degrees. For example, if an operator presses the storage unit 1110 with the nozzle 1120 tilted at 45 degrees, the imaginary plane when the tip of the nozzle 1120 from which the droplets are suspended changes when viewed from directly below. Specifically, in FIG. 7A, the projected area of ​​the imaginary plane when the tip of the nozzle 1120 from which the droplets are suspended is set to "1.0". In this case, in FIG. 7B, when the nozzle 1120 is tilted at 45 degrees, the projected area of ​​the imaginary plane when the tip of the nozzle 1120 from which the droplets are suspended is set to "0.7", for example.

[0015] The projected area of ​​the imaginary surface affects the amount of droplet dispensed. Therefore, tilting the nozzle 1120 reduces the projected area of ​​the imaginary surface, which means that the droplet hanging from the tip of the nozzle 1120 becomes smaller, and the amount of droplet dispensed per droplet decreases.

[0016] In this way, when an operator tilts nozzle 1120 in container 1100, the droplets hanging from the tip of nozzle 1120 may become smaller than when nozzle 1120 is held upright. In other words, the amount of solution measured by dropping is affected by the tilt angle of nozzle 1120.

[0017] Therefore, in this embodiment, in order to provide a container that can stabilize the amount of dripping, the nozzle includes a nozzle body and a tip portion. The tip portion is located at the tip of the nozzle body and causes the liquid supplied from the nozzle body to fall down the spherical crown. The container according to this embodiment will be described in detail below.

[0018] (First embodiment) FIG. 1A is a side view showing an example of the configuration of a container 100 according to this embodiment. As shown in FIG. 1A, the container 100 includes a storage section 110 that stores a solution, and a nozzle 120 for dripping the solution stored in the storage section 110. Examples of materials for the nozzle 120 include resins such as polypropylene. For example, an operator can drip the solution stored in the storage section 110 by pressing the storage section 110. Here, in this embodiment, the storage section 110 stores a solution, but the solution is not limited to a solution and may be a suspension. The solution is an example of a "liquid."

[0019] 1A shows a state in which the nozzle 120 is held upright. For example, an operator can press the storage unit 110 with the nozzle 120 held upright to dispense a specified number of drops of the solution held in the storage unit 110.

[0020] Here, the shape of the nozzle 120 is a tapered hollow nozzle, and the tip of the nozzle 120 has a spherical notch shape. The shape of the tip of the nozzle 120 will be specifically described below.

[0021] As shown in FIG. 1A, the nozzle 120 includes a nozzle body 130 and a tip portion 140. The tip portion 140 is located at the tip of the nozzle body 130 and allows the solution supplied from the nozzle body 130 to fall down a spherical crown 142. For example, the tip portion 140 has a spherical notch shape, formed by cutting a sphere 140A that forms the spherical crown 142 at a flat surface 141. The tip portion 140 is connected to the nozzle body 130 at the flat surface 141 and allows the solution supplied from the nozzle body 130 to fall down the spherical crown 142. The tip portion 140 may have any shape that allows droplets to drip from the spherical crown 142, and is not limited to a spherical notch shape; it may also have a spherical shape. For example, the tip portion 140 may have the shape of a sphere 140A (including the dotted line) as shown in FIG. 1A. Furthermore, the tip portion 140 may be a separate body from the nozzle body 130 and connected to the nozzle body 130 by being adhered or welded to the nozzle body 130, or may be integrally molded with the nozzle body 130.

[0022] 1B is a side view illustrating the effect of the container 100 according to this embodiment. For example, even if an operator tilts the nozzle 120 when dripping a solution using the container 100, the amount of dripping per drop is unlikely to change. This will be specifically described with reference to FIGS. 1A and 1B.

[0023] The example shown in FIG. 1B shows a state in which nozzle 120 is tilted at 45 degrees. For example, because the tip of nozzle 120 has a spherical indentation shape, even if an operator presses storage unit 110 with nozzle 120 tilted at 45 degrees, the imaginary plane when the tip of nozzle 120 from which droplets are suspended does not change when viewed from directly below. Specifically, in FIG. 1A, the projected area of ​​the imaginary plane when the tip of nozzle 120 from which droplets are suspended is viewed from directly below is set to "1.0". Here, because the tip of nozzle 120 has a spherical indentation shape, in FIG. 1B, even if nozzle 120 is tilted at 45 degrees, the projected area of ​​the imaginary plane when the tip of nozzle 120 from which droplets are suspended is also "1.0".

[0024] The amount of droplets dispensed per droplet is affected by the projected area of ​​the imaginary plane, but as described above, the projected area of ​​the imaginary plane does not change with tilt of the nozzle 120. Therefore, in the container 100 according to this embodiment, even if the nozzle 120 is tilted, the size of the droplets hanging from the tip of the nozzle 120 is unlikely to change, and therefore the amount of droplets dispensed per droplet is also unlikely to change.

[0025] Thus, in the container 100 according to this embodiment, even if an operator tilts the nozzle 120 from a vertically standing state, the size of the droplets hanging from the tip of the nozzle 120 is unlikely to change. In other words, the amount of solution measured by dripping is unlikely to be affected by the tilt angle of the nozzle 120.

[0026] The details of the configuration of the container 100 according to this embodiment will be specifically described below.

[0027] Fig. 2A is a side view showing an example of the configuration of the container 100 according to the first embodiment, Fig. 2B is a cross-sectional view taken along line AA in Fig. 2A, and Fig. 2C is a cross-sectional view taken along line BB in Fig. 2A.

[0028] 2A, the tip portion 140 is provided with a plurality of outlets 150. The plurality of outlets 150 is provided on the nozzle body 130 side of the tip portion 140. Specifically, the plurality of outlets 150 is provided on the nozzle body 130 side of the center O of the sphere 140A that forms the spherical crown 142 of the tip portion 140. For example, as shown in FIGS. 2A and 2B, the plurality of outlets 150 is provided on the flat surface 141 of the tip portion 140.

[0029] A plurality of outlets 150 provided on a flat surface 141 of the tip portion 140 discharge the solution supplied from the nozzle body 130. Specifically, as shown in FIG. 2B , the plurality of outlets 150 discharge the solution supplied from a flow path 131 in the nozzle body 130.

[0030] 2C, the plurality of outlets 150 are arranged radially with respect to the central axis P of the nozzle 120. Specifically, the solution supplied from the flow path 131 in the nozzle body 130 is discharged from the plurality of outlets 150, causing the solution to fall down the spherical crown 142 of the tip 140. In other words, because the solution falls down the spherical crown 142, the size of the droplets hanging from the tip of the nozzle 120 is unlikely to change even if the operator tilts the nozzle 120 from a vertically standing state.

[0031] Here, the sum of the cross-sectional areas of the multiple outlets 150 provided on the flat surface 141 of the tip portion 140 is smaller than the cross-sectional area of ​​the flow path 131 in the nozzle body 130. For example, if the sum of the cross-sectional areas of the multiple outlets 150 is the same as the cross-sectional area of ​​the flow path 131 in the nozzle body 130, it may be difficult for the solution to be discharged from each of the multiple outlets 150. Specifically, if the nozzle 120 is tilted, it may be difficult for the solution to be discharged from, for example, an outlet 150 located at the top due to the tilt of the nozzle 120. On the other hand, if the nozzle 120 is tilted, it may be possible for the solution to be discharged all at once from only an outlet 150 located at the bottom due to the tilt of the nozzle 120 (hereinafter referred to as some of the outlets 150).

[0032] Therefore, to prevent the solution from being discharged all at once from only some of the outlets 150, the sum of the cross-sectional areas of the multiple outlets 150 is made smaller than the cross-sectional area of ​​the flow path 131 in the nozzle body 130, so that the solution is discharged uniformly from the multiple outlets 150. As a result, even if the operator tilts the nozzle 120 from a vertically standing state, the size of the droplets that fall down the spherical crown 142 of the tip 140 is unlikely to change.

[0033] In this way, in the container 100 according to the first embodiment, the solution falls down the spherical crown 142 of the tip 140, so that the specified amount of solution can be dispensed without holding the nozzle 120 upright. For example, in the container 100 according to this embodiment, the operator can dispense the specified amount of solution while resting their elbows on the table.

[0034] Furthermore, with the container 100 according to the first embodiment, even an unskilled worker can drip a specified amount of solution. For example, with the container 100 according to this embodiment, even a hospital worker (such as a nurse) who does not use a micropipette or a worker at a privately run clinic can drip a specified amount of solution.

[0035] (Second embodiment) Fig. 3A is a side view showing an example of the configuration of a container 100 according to a second embodiment. Fig. 3B is a cross-sectional view taken along line AA in Fig. 3A. In the second embodiment, changes from the first embodiment will be described.

[0036] 3A, a plurality of outlets 150 arranged radially with respect to the central axis P of the nozzle 120 are provided throughout the entire tip portion 140. For example, as shown in FIGS. 3A and 3B, the plurality of outlets 150 are provided on a flat surface 141 of the tip portion 140, and are also provided in multiple stages on a spherical crown 142 of the tip portion 140. That is, in the first embodiment, the plurality of outlets 150 arranged radially with respect to the central axis P of the nozzle 120 are provided on the flat surface 141 of the tip portion 140, and in the second embodiment, the plurality of outlets 150 are further provided on a plurality of flat surfaces parallel to the flat surface 141 on the spherical crown 142 of the tip portion 140.

[0037] 3A and 3B, multiple outlets 150 provided throughout tip portion 140 discharge the solution supplied from flow path 131 in nozzle body 130, causing the solution to fall down spherical crown 142. In other words, because the solution falls down spherical crown 142 of tip portion 140, the size of the droplets hanging from the tip of nozzle 120 is unlikely to change even if the operator tilts nozzle 120 from a vertically standing state.

[0038] Here, the sum of the cross-sectional areas of the multiple outlets 150 provided throughout the tip portion 140 is smaller than the cross-sectional area of ​​the flow path 131 in the nozzle body 130. For example, if the sum of the cross-sectional areas of the multiple outlets 150 is the same as the cross-sectional area of ​​the flow path 131 in the nozzle body 130, it may be difficult to supply the solution to each of the multiple outlets 150. Specifically, if the nozzle 120 is tilted, it may be difficult to supply the solution to, for example, the outlets 150 located higher due to the tilt of the nozzle 120. On the other hand, if the nozzle 120 is tilted, it may be possible that the solution is suddenly discharged only from, for example, the outlets 150 located lower due to the tilt of the nozzle 120 (hereinafter referred to as some of the outlets 150).

[0039] Therefore, to prevent the solution from being discharged all at once from only some of the outlets 150, the sum of the cross-sectional areas of the multiple outlets 150 is made smaller than the cross-sectional area of ​​the flow path 131 in the nozzle body 130, so that the solution is discharged uniformly from the multiple outlets 150. As a result, even if the operator tilts the nozzle 120 from a vertically standing state, the size of the droplets that fall down the spherical crown 142 of the tip 140 is unlikely to change.

[0040] Furthermore, among the multiple outlets 150 provided throughout the tip portion 140, the cross-sectional area of ​​the outlet 150 provided closer to the tip 120A of the nozzle 120 than the center O of the sphere 140A is smaller than the cross-sectional area of ​​the outlet 150 provided closer to the nozzle body 130 than the center O of the sphere 140A. For example, assume that the cross-sectional area of ​​the outlet 150 (hereinafter referred to as outlet 151) provided closer to the nozzle body 130 than the center O of the sphere 140A forming the spherical crown 142 is the same as the cross-sectional area of ​​the outlet 150 (hereinafter referred to as outlet 152) provided closer to the tip 120A of the nozzle 120 than the center O of the sphere 140A. In this case, there is a possibility that not much solution is discharged from outlet 151, and the solution is discharged all at once from outlet 152.

[0041] Therefore, by making the cross-sectional area of ​​outlet 152 smaller than the cross-sectional area of ​​outlet 151 so that the solution is preferentially discharged from outlet 151, the solution is discharged uniformly from the plurality of outlets 150. For example, by making the cross-sectional area of ​​the plurality of outlets 150 provided throughout tip portion 140 smaller step by step, the solution is discharged uniformly from the plurality of outlets 150. As a result, even if the operator tilts nozzle 120 from a vertically standing state, the size of the droplets falling down spherical crown 142 of tip portion 140 is unlikely to change.

[0042] In this way, in the container 100 according to the second embodiment, the solution falls along the spherical crown 142 of the tip 140, so that the specified amount of solution can be dripped without holding the nozzle 120 upright. Furthermore, in the container 100 according to the second embodiment, even an operator who is not skilled in the work can drip the specified amount of solution.

[0043] (Third embodiment) Fig. 4A is a side view showing an example of the configuration of a container 100 according to a third embodiment. Fig. 4B is a cross-sectional view taken along line AA in Fig. 4A. In the third embodiment, changes from the first embodiment will be described.

[0044] As shown in Fig. 4A, fine grooves 300 that intersect with one another are formed in the spherical crown 142 of the tip portion 140. For example, as shown in Figs. 4A and 4B, a plurality of outlets 150 arranged radially with respect to the central axis P of the nozzle 120 are provided in the flat surface 141 of the tip portion 140, and the spherical crown 142 of the tip portion 140 is also formed with fine grooves 300 that intersect with one another. That is, in the first embodiment, a plurality of outlets 150 arranged radially with respect to the central axis P of the nozzle 120 are provided in the flat surface 141 of the tip portion 140, and in the third embodiment, further fine grooves 300 that intersect with one another are provided in the spherical crown 142 of the tip portion 140.

[0045] In Figures 4A and 4B, multiple outlets 150 provided on a flat surface 141 of the tip portion 140 discharge the solution supplied from the flow path 131 in the nozzle body 130, and the solution falls down through fine grooves 300 that intersect with each other in the spherical crown 142.

[0046] Here, the fine grooves 300 that intersect with each other are grooves that resemble the mesh pattern of a melon, such as a muskmelon. For example, assume that the grooves 300 are vertical grooves that resemble the mesh pattern of a watermelon. In this case, there is a possibility that the solution supplied from the multiple outlets 150 provided on the flat surface 141 of the tip portion 140 will be discharged mainly from the tip 120A side of the nozzle 120 of the tip portion 140 due to gravity.

[0047] Therefore, to prevent the solution from being discharged mainly from the tip 120A side of the nozzle 120 of the tip portion 140, fine grooves 300 that intersect with each other are formed in the spherical crown 142. As a result, the solution supplied from the multiple outlets 150 flows down the grooves 300 formed in the spherical crown 142, and the solution falls down along the entire surface of the spherical crown 142 of the tip portion 140.

[0048] In this way, in container 100 according to the third embodiment, by forming minute grooves 300 that intersect with each other in spherical crown 142 of tip 140, the solution falls along the entire surface of spherical crown 142 of tip 140. As a result, in container 100 according to the third embodiment, even if the operator tilts nozzle 120 from a vertically standing state, the size of the droplets hanging from the tip of nozzle 120 is unlikely to change.

[0049] That is, in the container 100 according to the third embodiment, the solution falls along the entire surface of the spherical crown 142 of the tip 140, so that the specified amount of solution can be dripped without holding the nozzle 120 upright. Furthermore, in the container 100 according to the third embodiment, even an operator who is not skilled in the work can drip the specified amount of solution.

[0050] (Fourth embodiment) Fig. 5A is a side view showing an example of the configuration of a container 100 according to a fourth embodiment. Fig. 5B is a cross-sectional view taken along line AA in Fig. 5A. In the fourth embodiment, changes from the first embodiment will be described.

[0051] 5A, nozzle 120 includes nozzle body 130 and tip portion 400. That is, in the fourth embodiment, nozzle 120 includes tip portion 400 instead of tip portion 140 in the first embodiment. Tip portion 400 has a spherical notch shape obtained by cutting sphere 140A at a flat surface 401, and is connected to nozzle body 130 at said flat surface 401, so that the solution supplied from nozzle body 130 falls down along a spherical crown 402.

[0052] Here, the tip portion 400 is formed of a porous material. The tip portion 400 discharges a solution supplied from the nozzle body 130. For example, as shown in FIG. 5B , a solution is supplied to the tip portion 400 from a flow path 131 in the nozzle body 130. Specifically, when the solution is supplied to the tip portion 400 from the flow path 131 in the nozzle body 130, the solution is discharged through minute holes in the porous material formed as the tip portion 400 and falls down the entire surface of the spherical crown 402 of the tip portion 400.

[0053] In this way, in the container 100 according to the fourth embodiment, by forming the tip 400 from a porous material, the solution falls along the entire surface of the spherical crown 402 of the tip 400. As a result, in the container 100 according to the fourth embodiment, even if the operator tilts the nozzle 120 from a vertically standing state, the size of the droplets hanging from the tip of the nozzle 120 is unlikely to change.

[0054] That is, in the container 100 according to the fourth embodiment, the solution falls along the entire surface of the spherical crown 402 of the tip 400, so that the specified amount of solution can be dripped without holding the nozzle 120 upright. Furthermore, in the container 100 according to the fourth embodiment, even an operator who is not skilled in the work can drip the specified amount of solution.

[0055] (Modification of the fourth embodiment) In a modification of the fourth embodiment, a part of the tip portion 140 may be formed of a porous material. Fig. 6A is a side view showing an example of the configuration of a container 100 according to a modification of the fourth embodiment. Fig. 6B is a cross-sectional view taken along line AA in Fig. 5A.

[0056] 6A, nozzle 120 includes nozzle body 130 and tip 140. Tip 140 has the shape of a spherical notch formed by cutting sphere 140A at flat surface 141, and is connected to nozzle body 130 at flat surface 141. Solution supplied from nozzle body 130 falls down spherical crown 142.

[0057] Here, tip portion 140 is provided with porous material 500 formed on the nozzle body 130 side of center O of sphere 140A that forms spherical crown 142. Specifically, porous material 500 is formed on tip portion 140 on the nozzle body 130 side of center O of sphere 140A so that one end of porous material 500 becomes flat surface 141 of tip portion 140.

[0058] Tip portion 140 discharges the solution supplied from nozzle body 130. For example, as shown in FIG. 6B , the solution is supplied to tip portion 140 from flow path 131 in nozzle body 130. Specifically, when the solution is supplied to tip portion 140 from flow path 131 in nozzle body 130, the solution is discharged through minute holes in porous material 500 formed in part of tip portion 140 and falls down the entire surface of spherical crown 142 of tip portion 140.

[0059] Therefore, in the container 100 according to the modification of the fourth embodiment, the solution falls along the entire surface of the spherical crown 142, so that the specified amount of solution can be dripped without holding the nozzle 120 upright. Furthermore, in the container 100 according to the modification of the fourth embodiment, even an operator who is not skilled in the work can drip the specified amount of solution.

[0060] According to at least one of the embodiments described above, it is possible to provide a container that can stabilize the amount of dripping.

[0061] Although several embodiments have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations of embodiments can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0062] 100 containers 110 Storage unit 120 nozzles 130 Nozzle body 140 Tip 142 Ball crown

Claims

1. a storage section for storing a liquid; a nozzle for dripping the liquid contained in the container; Equipped with The nozzle is A nozzle body; a tip portion located at a tip of the nozzle body, causing the liquid supplied from the nozzle body to fall along a spherical crown; A container comprising:

2. a discharge port provided on the nozzle body side at the tip portion for discharging the liquid supplied from the flow path within the nozzle body; The container of claim 1.

3. The tip portion is provided with a plurality of the outlets, The plurality of outlets are arranged radially with respect to the central axis of the nozzle.

3. The container of claim 2.

4. a sum of cross-sectional areas of the plurality of outlets is smaller than a cross-sectional area of ​​a flow path within the nozzle body; 4. The container of claim 3.

5. The plurality of outlets are provided on a flat surface of the tip portion.

5. The container of claim 4.

6. The plurality of outlets are further provided in multiple stages in the spherical crown at the tip portion, Among the plurality of outlets provided at the tip portion, the cross-sectional area of ​​the outlet provided on the tip side of the nozzle is smaller than the cross-sectional area of ​​the outlet provided on the nozzle body side.

6. The container according to claim 4 or 5.

7. The spherical crown at the tip end has fine grooves that intersect with each other.

6. The container according to claim 4 or 5.

8. The tip is formed of a porous material. The container of claim 1.

9. At the tip portion, the nozzle body side is formed of a porous material, The container of claim 1.

10. The tip portion has a spherical notch shape obtained by cutting a sphere with a flat surface. The container of claim 1.

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