CN218262556U - Culture dish - Google Patents

Abstract

The utility model relates to a culture dish. The culture dish comprises: the dish body comprises a bottom wall and a dish body side wall, and a culture space is enclosed by the bottom wall and the dish body side wall; the culture medium dropping device comprises a dish cover, wherein the dish cover comprises a top wall and a dish cover side wall, the inner diameter of the dish cover side wall is larger than the outer diameter of the dish body side wall, an anti-dropping structure used for keeping a culture medium is formed on the inner surface of the dish body, the anti-dropping structure comprises a concave part and a convex part, and the concave part and the convex part limit part of the culture space. The utility model discloses a culture dish piles up steadily and puts to can prevent droing of fixed culture medium in the transportation.

Description

Culture dish

[ technical field ] A method for producing a semiconductor device

The utility model relates to a laboratory vessel; particularly, the utility model relates to a culture dish.

[ background of the invention ]

A petri dish is a laboratory vessel used for microbial or cell culture. The culture of microorganisms or cells requires a culture medium to provide nutrients and survival conditions, and in experiments, the microorganisms or cells and the culture medium are treated and placed together in a culture dish. The culture medium can be divided into a liquid culture medium and a solid culture medium. In experiments for isolating, identifying, preserving, counting, and observing the characteristics of colonies of microorganisms, a solid medium is generally used.

The transportation of current culture dish all is simple pile together usually, does not carry out fine fixed, because can produce collision and vibrations in the transportation, leads to easily to take place mutual collision between the culture dish even the landing is knocked over to and lead to the dish lid not hard up, open, make the internal portion of dish receive the pollution, and, this kind of collision and vibrations still can cause droing of the solid medium in the culture dish.

Therefore, there is a need for a culture dish that can prevent solid medium from falling off, and especially further can be stably stacked.

[ Utility model ] content

In view of the above, the present invention provides a culture dish that solves or at least alleviates one or more of the above problems and other problems of the prior art.

In order to achieve the above object, according to the present invention, there is provided a culture dish, comprising:

the dish body comprises a bottom wall and a dish body side wall, and a culture space is enclosed by the bottom wall and the dish body side wall;

the dish cover comprises a top wall and a dish cover side wall, the inner diameter of the dish cover side wall is larger than the outer diameter of the dish body side wall,

the culture dish comprises a dish body and a culture medium, wherein an anti-falling structure for keeping the culture medium is formed on the inner surface of the dish body, the anti-falling structure comprises a concave part and a convex part, and the concave part and the convex part define part of the culture space.

In the aforementioned culture dish, optionally, the falling off prevention structure is located on an inner surface of the bottom wall.

In the aforementioned culture dish, optionally, the top surface of the concave part and/or the convex part is a plane.

In the aforementioned culture dish, optionally, the concave part and/or the convex part are circular, and the periphery of the concave part and/or the convex part extends downwards to form a support of the culture dish.

As in the previous plates, the support is optionally curved and segmented with gaps between segments.

In the culture dish, optionally, the outer surface of the top wall of the dish cover is provided with a recess, and the inner diameter of the recess is larger than or equal to the outer diameter of the support.

In the aforementioned culture dish, optionally, a width from the circumferential edge of the recess to the circumferential edge of the top wall is larger than a width from the circumferential edge of the support to the circumferential edge of the bottom wall.

In the culture dish, optionally, the anti-falling structure is positioned on the inner surface of the side wall of the dish body.

In the aforementioned culture dish, optionally, a further concave-convex pattern is formed on the surface of the concave portion and/or the convex portion.

As in the previous culture dish, optionally, the dish lid sidewall and/or the dish body sidewall are sloped or curved radially outward.

According to the utility model discloses a culture dish of an aspect sets up anti-drop structure on the internal surface of ware body to inject the shape of solid culture medium, increase the viscidity area of contact and the friction force of solid culture medium and ware body internal surface, prevent droing of fixed culture medium.

According to the utility model discloses a further aspect's culture dish forms the support in the bottom of the ware body to and set up corresponding sunken on the roof of ware lid, make the bottom of the ware body can imbed the ware lid, thereby the culture dish can pile up each other steadily and put. This can further effectively prevent the solid medium in the culture dish from falling off during transportation.

[ description of the drawings ]

The disclosure of the present invention will be more apparent with reference to the accompanying drawings. It is to be understood that these drawings are solely for purposes of illustration and are not intended as a definition of the limits of the invention. In the figure:

FIG. 1 shows a schematic front cross-sectional view of a vessel body of a first embodiment of a culture vessel according to the invention;

FIG. 2 shows a schematic front cross-sectional view of a vessel body of a second embodiment of the culture vessel of the present invention;

FIG. 3 is a bottom schematic view of the capsule of FIGS. 1 and 2;

FIG. 4 shows schematic front cross-sectional views of dish lids of first and second embodiments of a culture dish of the present invention; and

FIG. 5 shows a schematic cross-sectional view of a stack of a first embodiment of the culture dish of the present invention, wherein the middle of the bottom wall of the dish body is a concave portion;

figure 6 shows a schematic cross-section of a stack of a second embodiment of the culture dish according to the invention, wherein the middle of the bottom wall of the dish body is a convex part.

Reference numerals: 10A-dish body; 11A-vessel body side wall; 12A-a bottom wall; 13A-a support; 14-a recess; 10B-vessel body; 11B-vessel body side wall; 12B-bottom wall; 13B-a support; 15-a convex part; 20-capsule cover; 21-top wall; 22-capsule side wall; 23-concave.

[ detailed description ] embodiments

The structural composition, characteristics, advantages and the like of the culture dish according to the invention will be illustrated below by way of example with reference to the accompanying drawings and specific examples, all of which however should not be construed as forming any limitation to the invention.

Furthermore, any single feature described or implicit in an embodiment herein or any single feature shown or implicit in the drawings or shown or implicit in the drawings may still allow any combination or permutation to continue between the features (or their equivalents) without any technical impediment, and thus further embodiments according to the present invention should be considered within the scope of this disclosure.

It should also be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

A culture dish is a laboratory vessel for culturing microorganisms or cells, and generally comprises a dish body in the shape of a flat disk and a dish cover, and is generally made of glass or plastic. The materials of the culture dish are basically divided into two types, namely plastic and glass. Glass culture dishes can be used for plant materials, microbial cultures and adherent cultures of animal cells. The plastic culture dish can be made of polyethylene material, can be used for one time or multiple times, can be used for laboratory inoculation, streaking, bacteria separation and the like, and can be used for culturing plant materials. In some cases, the dish body and the dish lid may be made of different materials, as desired.

For the culture of microorganisms or cells, solid culture media commonly used in laboratories, such as agar solid slants and solid plate culture media, are usually prepared by adding coagulants to liquid culture media, and have certain viscosity.

The utility model provides a culture dish, the culture dish includes the ware body and ware lid. In order to make the solid culture medium can be located in the inside of the dish body more firmly, the utility model discloses improve the structure of the dish body: an anti-falling structure is arranged on the inner surface of the vessel body, and comprises a concave part and a convex part which are used for limiting the culture space so as to limit the shape of the solid culture medium, and increasing the viscous contact area of the solid culture medium and the inner surface of the vessel body and the friction force of the solid culture medium relative to the inner surface of the vessel body so as to maintain the position of the fixed culture medium in the vessel body and prevent the solid culture medium from falling off in a vibration state.

This is explained in detail below with reference to fig. 1-3.

FIG. 1 shows a schematic front cross-sectional view of a vessel body of a first embodiment of a culture vessel according to the invention; FIG. 2 shows a schematic front cross-sectional view of a vessel body of a second embodiment of the culture vessel of the present invention; figure 3 is a bottom schematic view of the capsule of figures 1 and 2.

As can be seen from the figure, the dish bodies 10A, 10B include bottom walls 12A, 12B and dish body side walls 11A, 11B, and the bottom walls 12A, 12B and the dish body side walls 11A, 11B enclose a culture space. The microorganisms or cells are placed in the culture space and are provided with nutrients and their desired survival conditions by the medium contained in the culture space.

In the embodiment of FIG. 1, a drop-off preventing structure for holding a medium is formed on the inner surface of the bottom wall 12A. Specifically, the anti-drop structure of bottom wall 12A includes a concave portion 14 at a central portion and a convex portion connected to side wall 11A at an outer periphery thereof. The downward recessed portion 14 and the upward peripheral raised portion in the bottom wall 12A together define part of the culture space. The central concave part and the peripheral convex part are provided with transition parts, and the concave part, the convex part and the transition parts together provide more medium contact area, so that the solid medium in the culture space can be more firmly maintained in the culture space. In addition, in the embodiment of the drawings, the top surface of the recess 14 is planar. In other embodiments, the top surface of the recess 14 may have other shapes such as a spherical surface, as long as it can accommodate the solid medium.

According to the embodiment, when the solid culture medium is prepared, the anti-drop structures filled in the side wall 11A and the bottom wall 12A of the dish body are in the shape matched with the configuration, the viscous contact area between the solid culture medium and the inner surface of the dish body 10A is increased, so that when the culture dish is in a vibration state, when one part of the solid culture medium is separated from the inner surface of the culture dish, the whole solid culture medium is not driven to drop due to inertia, and the solid culture medium in the anti-drop structures can be more stably kept in the culture space. Alternatively, a further concave-convex pattern may be formed on the surface of the concave portion 14 or the convex portion to increase the frictional force between the solid medium and the bottom wall 12A, further preventing the solid medium from falling off.

In the embodiment of FIG. 2, a drop-off preventing structure for holding the medium is formed on the inner surface of the bottom wall 12B. Specifically, the anti-drop structure of bottom wall 12A includes a convex portion 15 at the central portion and a concave portion connected to side wall 11B at the outer periphery thereof. The upward convex portion 15 and the downward peripheral concave portion in the bottom wall 12B together define part of the culture space. The convex part in the center and the concave part in the periphery are transition parts, and the convex part, the concave part and the transition parts together provide more culture medium contact area, and the solid culture medium in the culture space can be more firmly kept in the culture space. In addition, in the embodiment in the drawings, the top surface of the convex portion 15 is a plane. In other embodiments, the top surface of the convex portion 15 may have another shape such as a spherical surface as long as it can accommodate the solid medium.

According to this embodiment, when the solid culture medium is prepared, the anti-drop structure filled into the dish body side wall 11B and the bottom wall 12B has a shape matched with each other, which increases the viscous contact area between the solid culture medium and the inner surface of the dish body 10B, so that when the culture dish is in a vibration state, a certain part of the solid culture medium is separated from the inner surface of the culture dish, and the whole solid culture medium is not driven to drop due to inertia, and therefore the solid culture medium in the anti-drop structure can be more stably maintained in the culture space. Alternatively, a further concave-convex pattern may be formed on the surface of the convex portion 15 or the concave portion to increase the frictional force between the solid medium and the bottom wall 12B, further preventing the falling-off of the medium.

It should be noted that in other alternative embodiments, the anti-drop structure may be located on the inner surface of the capsule side walls 11A, 11B (not shown). The drop-preventing structure on the inner surface of the vessel body side walls 11A, 11B may include a concave portion and a convex portion opposite to each other to restrict a part of the culture space, increasing the viscous contact area of the solid medium with the inner surface of the vessel body 10. The solid culture medium is configured into the shape of the inner surface of the dish body 10, when the culture dish is in a vibration state, the solid culture gene is in a shape of being in contact with the inner surface of the dish body 10, and the solid culture gene is separated from the inner surface of the dish body and cannot drive the whole solid culture medium to fall off due to inertia, so that the solid culture medium can be more stably kept in the culture space. Optionally, a further concave-convex pattern may be formed on the surface of the drop-off prevention structure to increase the friction force between the solid culture medium and the dish body side walls 11A, 11B, further preventing the drop-off of the culture medium.

In an optional embodiment, the anti-falling structure on the inner surface of the dish body side walls 11A and 11B may also be used in combination with the concave portion and/or the convex portion in fig. 1 and 2 to limit part of the culture space, so as to limit the shape of the solid culture medium, and increase the viscous contact area between the solid culture medium and the inner surfaces of the dish bodies 10A and 10B, so that when the culture dish is in a vibration state, the solid culture gene is in a shape of contacting the inner surfaces of the dish bodies 10A and 10B, and the solid culture gene is separated from the inner surfaces of the dish bodies, so that the whole solid culture medium is not separated due to inertia, and the solid culture medium can be more stably maintained in the culture space.

In an alternative embodiment, a concave-convex pattern is formed on the surface of the anti-drop structure to increase the friction force between the solid culture medium and the bottom walls 12A and 12B and/or the dish body side walls 11A and 11B, thereby further preventing the culture medium from dropping.

It can be seen from the figure that the bottom surfaces of the concave portions of the bottom walls 12A and 12B are flat, when the culture dish is placed on a table or stacked on the flat dish cover of other culture dishes, the outer surface of the bottom wall 12B is in direct contact with the placed flat surface, and the culture dish is easy to slide relatively during transportation, so that the culture dish slides and turns over. In order to prevent the above-mentioned sliding, as in the embodiment of fig. 1 and 2, seats 13A, 13B are provided below the edges of the recesses 14 and the protrusions 15, respectively. As is clear from fig. 3, the recess 14 and/or the protrusion 15 of the bottom wall 12A, 12B of the capsule 10A, 10B are circular, said abutment 13A, 13B being provided at the periphery of the recess 14 and/or the protrusion 15 extending downwards. The supports 13A and 13B may be used to support the culture dish, prevent the outer surfaces of the bottom walls 12A and 12B from directly contacting the plane of placement, and enable the culture dish to be stably placed on a table top or a dish cover, so as to ensure that the culture medium therein is stably placed in the culture dish.

As can also be seen in fig. 3, said seats 13A, 13B are arc-shaped and are segmented, with gaps between the segments, which prevent the formation of a closed space below the bottom walls 12A, 12B, which would create an atmospheric pressure difference, making the capsule 10A, 10B difficult to take. Air can circulate between the gaps, so that the atmospheric pressure difference between the inner space and the outer space below the bottom walls 12A and 12B is the same, and the dish bodies 10A and 10B are convenient to take.

In an alternative embodiment, the capsule side walls 11A, 11B are tapered or curved radially outwardly upwardly from their junction with the bottom wall 12A, 12B, with the upper mouth of the capsule side walls 11A, 11B being widest. When the dish cover 20 is covered on the dish bodies 10A and 10B, the upper end openings of the dish body side walls 11A and 11B are in contact with the top wall 21 of the dish cover 20 and can abut against the dish cover side wall 22, and under the interaction between the dish body side walls 11A and 11B and the dish cover side wall 22, the dish cover 20 can be more firmly covered on the dish bodies 10A and 10B, so that the pollution of culture spaces inside the dish bodies 10A and 10B caused by mistakenly opening the dish cover 20 during vibration is prevented. In other embodiments, a plurality of limit blocks may be distributed at the junction of the top wall 21 of the dish cover 20 and the side wall 22 of the dish cover, so that a gap is formed between the dish cover 20 and the side wall 22 of the dish cover and the top ends of the side walls 11A and 11B of the dish body, so as to allow ventilation inside and outside the culture space.

In order to make the solid culture medium more stably located inside the dish bodies 10A and 10B, the present invention also makes corresponding improvements on the structure of the dish cover 20 and the structure of the dish bodies 10A and 10B, which will be explained below with reference to fig. 4 to 6.

Fig. 4 shows a schematic front sectional view of the dish lid of the first and second embodiments of the culture dish of the present invention.

As can be seen from the figure, the capsule 20 includes a top wall 21 and a capsule side wall 22, and the capsule side wall 22 has an inner diameter larger than the outer diameter of the capsule side walls 11A, 11B, so that the capsule 20 can cover the capsule 10A, 10B.

The top surface of the top wall 21 of the dish lid 20 has a recess 23, the inner diameter of the recess 23 being greater than or equal to the outer diameter of the holders 13A, 13B of the dish bodies 10A, 10B, the recess 23 being capable of receiving the holders 13A, 13B so that a plurality of culture dishes can be stacked together smoothly. Optionally, in practical applications, the inner diameter of the recess 23 may be slightly larger than the outer diameter of the holder 13A, 13B of the dish body 10A, 10B, so that the bottom wall 12A, 12B of the dish body 10A, 10B and the holder 13A, 13B are just embedded into the recess 23, and when the dish body 10A, 10B vibrates, the bottom shaking space is small and is not easy to slip off.

In an alternative embodiment, the capsule side wall 22 tapers or curves radially outwardly downwardly from its junction with the top wall 21, with the lower mouth of the capsule side wall 22 being widest. The inclined or curved configuration of the capsule sidewall 22 facilitates the capsule 20 to be disposed over the capsule bodies 10A, 10B.

FIG. 5 shows a schematic cross-sectional view of a stack of a first embodiment of culture dishes according to the invention, wherein the middle of the bottom wall of the dish body is a recess; figure 6 shows a schematic cross-sectional view of a stack of a second embodiment of the culture dish according to the invention, wherein the middle of the bottom wall of the dish body is a convex part.

As can be seen from the figure, the width from the circumferential edge of the recess 23 to the circumferential edge of the top wall 21 is greater than the width from the circumferential edge of the holders 13A, 13B to the circumferential edge of the bottom walls 12A, 12B, so that the recess 23 of the dish cover 20 of the lower dish can stably hold the upper dish to support the upper dish while accommodating the holders 13A, 13B of the dish body of the upper dish. On the other hand, since the inner diameter of the capsule side wall 22 of the capsule 20 is equal to or larger than the outer diameters of the capsule side walls 11A and 11B of the capsule bodies 10A and 10B and the capsule bottom walls 12A and 12B, the capsule bodies 10A and 10B can be covered with the lower capsule bodies 10A and 10B to prevent the culture space in the capsule bodies 10A and 10B from being contaminated by the external environment.

In the embodiment shown in the figures, two culture dishes are stacked, wherein the inner diameter of the recess 23 of the dish lid 20 of the lower dish is larger than or equal to the outer diameter of the holders 13A, 13B of the upper dish body 10A, 10B, and the bottom dish body wall 12A, 12B of the upper dish comprises the holders 13A, 13B that engage in the recess 23 of the top dish lid wall 21 of the lower dish. At this moment, the culture dish that stacks is more firm, and during outside vibrations, this form of piling up is difficult for sliding and turning on one's side. In practical applications, a plurality of culture dishes can be stacked according to the method of the embodiment in the figure for transportation.

The utility model discloses an aspect provides a culture dish sets up the concave part or the convex part of anti-drop structure on the internal surface of the diapire 12A of ware body 10A, 10B and/or ware body lateral wall 11A, 11B for thereby inject partial culture space and further inject the shape of solid medium, increase the viscidity area of contact of solid medium and ware body 10A, 10B internal surface. Further, a concave-convex pattern may be provided on the drop-preventing structure to increase the frictional force of the solid medium against the inner surfaces of the vessel bodies 10A, 10B to maintain the position of the fixed medium in the vessel bodies 10A, 10B.

And, the utility model discloses a further aspect provides the culture dish, and its ware body 10A, 10B's bottom sets up support 13A, 13B to and set up on ware lid 20 with the corresponding sunken 23 of this support 13A, 13B, make ware body 10A, 10B's bottom can imbed ware lid 20, make the culture dish can pile up steadily and put.

The utility model discloses a culture dish is by interior structural design outside to, makes the culture dish pile up more firmly, in the transportation, prevents droing of the solid medium in the culture dish effectively.

The technical scope of the present invention is not limited to the content in the above description, and those skilled in the art can make various modifications and alterations to the above embodiments without departing from the technical spirit of the present invention, and these modifications and alterations should all fall within the scope of the present invention.

Claims (10)

1. A culture dish, comprising:

the dish body comprises a bottom wall and a dish body side wall, and a culture space is enclosed by the bottom wall and the dish body side wall;

the dish cover comprises a top wall and a dish cover side wall, the inner diameter of the dish cover side wall is larger than the outer diameter of the dish body side wall,

the culture dish comprises a dish body and a culture medium, wherein an anti-falling structure for keeping the culture medium is formed on the inner surface of the dish body, the anti-falling structure comprises a concave part and a convex part, and the concave part and the convex part define part of the culture space.

2. The culture dish of claim 1, wherein the anti-drop structure is located on an inner surface of the bottom wall.

3. A culture dish according to claim 2, wherein the top surface of the recess and/or the protrusion is planar.

4. A culture dish according to claim 2, wherein the recess and/or the protrusion are circular and the periphery of the recess and/or the protrusion extends downwards to form a seat for the culture dish.

5. The culture dish of claim 4, wherein the support is arcuate and segmented with a gap between the segments.

6. The culture dish according to claim 4, wherein the top wall of the dish lid has a recess on an outer surface thereof, the recess having an inner diameter greater than or equal to an outer diameter of the holder.

7. The culture dish of claim 6, wherein a width from a circumferential edge of the recess to a circumferential edge of the top wall is greater than a width from a circumferential edge of the support to a circumferential edge of the bottom wall.

8. The culture dish of claim 1, wherein the anti-drop structure is located on an interior surface of the dish body sidewall.

9. A culture dish according to claim 1, wherein the surface of the recesses and/or the protrusions is formed with a further relief pattern.

10. The culture dish of claim 1, wherein the dish lid sidewall and/or the dish body sidewall are sloped or curved radially outward.

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