Pressing-out-type visible and handheld surface sampling culture dish with leakage prevention and sliding prevention

A petri dish, anti-skid technology, applied in the field of experimental equipment, can solve the problems of human resource waste, low efficiency, contaminated culture, etc., and achieve the effect of improving accuracy and work efficiency, overcoming environmental microbial pollution, and simplifying the sampling process.

Inactive Publication Date: 2018-11-27
韩德礼
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AI-Extracted Technical Summary

Problems solved by technology

However, cotton swabs or filter paper cannot completely release the collected microorganisms, which may easily cause incomplete cultivation of cultivable microorganisms; in addition, the sampling of microorganisms on the surface of objects requires aseptic operation, while cotton swabs or filter paper are used in the collection and elution of microorganisms. During the process, it is easy to be polluted by environmental microorganisms, and it is difficult to meet the requirements of aseptic operation; these shortcomings will cause t...
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Abstract

The invention discloses a pressing-out-type visible and handheld surface sampling culture dish with leakage prevention and sliding prevention. The culture dish comprises a dish bottom and a dish cover, the dish bottom is provided with second buckles and first buckles, the second buckles and the first buckles are of a stable embedding structure, and the embedding structure can be loosened when theculture dish is under stress, so that movable dish bottom side wall bodies and first dish bottom side walls move relatively. Besides, second dish bottom side walls can prevent a culture medium from spilling out of the dish bottom. Through the cooperation of first grippers and second grippers, the dish bottom and the dish cover can be more conveniently unbuckled or buckled; when multiple culture dishes are stacked, first protrusions and second protrusions can limit the relative movement of every two adjacent culture dishes, and an observation window can bring more convenience to observation oftiny bacterial colonies.

Application Domain

Bioreactor/fermenter combinationsBiological substance pretreatments +5

Technology Topic

GrippersEngineering +1

Image

  • Pressing-out-type visible and handheld surface sampling culture dish with leakage prevention and sliding prevention

Examples

  • Experimental program(1)

Example Embodiment

[0009] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the described embodiments are only used to explain the present invention, and all simplifications or equivalent changes based on the technical solutions of the present invention belong to the protection scope of the present invention.
[0010] In the discussion of specific embodiments, the shape of the press-out leak-proof and non-slip visual hand-held surface sampling petri dish is preferably round, but those skilled in the art should recognize that the present invention is also applicable to Oval, rectangular or other shapes suitable for petri dishes.
[0011] The present invention discloses a pressing-out leak-proof, non-slip visual hand-held surface sampling petri dish, which comprises a dish bottom 2 and a dish cover 1 loosely covering the dish bottom 2. The dish cover 1 includes a cover wall 3 and at least one Surrounding and erecting the side wall 5 of the cover from the cover wall 3, the bottom 2 includes a bottom wall 4 and at least one first bottom wall 7 surrounding and erecting from the bottom wall 4, and at least one parallel sleeve The movable dish bottom side wall 71 outside the first dish bottom side wall 7; the diameter of the dish lid side wall 5 is larger than the movable dish bottom side wall 71; the bottom wall 4 and the lid wall 3 have the same shape . The first dish bottom side wall 7 is provided with at least one circle of second buckles 73, the second buckles 73 encircle the first dish bottom side wall 7 one week, and the circle plane of the second buckles 73 Parallel to the plane of the bottom wall 4; the bottom side wall 71 of the movable dish is provided with at least one circle of first buckles 72, and the first buckle 72 surrounds the bottom side wall 71 of the movable dish. The circular plane of the first buckle 72 is parallel to the plane of the bottom wall 4; the first buckle 72 and the second buckle 73 can be tightly fitted to maintain the movable vessel without external force The bottom side wall 71 is a technical feature above the first bottom side wall 7 of the movable dish; when along the direction from the bottom side wall 71 of the movable dish to the bottom side wall 7 of the first dish, a force is applied to the bottom side of the movable dish When the wall 71 is installed, the interlocking structure of the first buckle 72 and the second buckle 73 can be loosened. At this time, the movable dish bottom side wall 71 can move in parallel along the direction of the first dish bottom side wall 7. The above features determine the basic structure of the press-out leak-proof, non-slip visual hand-held surface sampling culture dish, wherein the space formed by the first dish bottom side wall 7, the movable dish bottom side wall 71 and the bottom wall 4 serves as the culture cavity, When a sufficient amount of agar medium is injected into the culture cavity, after the medium is solidified, a force is applied to the bottom side wall 71 of the movable dish to make the bottom side wall 71 of the movable dish follow the bottom side of the first dish The direction of the wall 7 moves in parallel until the plane of the side wall 71 of the bottom of the movable dish is lower than the plane of the agar medium. When in use, the plane of the agar medium is directly covered on the surface of the object to be tested, and the microorganisms on the surface of the object can be reached. The purpose of sampling avoids the cumbersome steps of using cotton swabs or filter paper for microbial collection and then elution, greatly simplifies the process of microbial sampling on the surface of the object, and overcomes the problem of easy environmental microbial contamination during the sampling process. Improve the accuracy of test results and work efficiency.
[0012] In the embodiment of the press-out leak-proof and non-slip visual hand-held surface sampling petri dish, the diameter of the bottom wall 4 is larger than the diameter of the cover wall 3. The arrangement of this feature can limit when the dish cover 1 and the dish When the bottom 2 is buckled, the side wall 5 of the lid can only be supported on the bottom wall 4. In addition, the sum of the height of the movable dish bottom side wall 71 and the height of the first dish bottom side wall 7 is smaller than the height of the dish lid side wall 5. This feature can be defined when the dish lid 1 and the dish bottom 2 There is a certain gap between the bottom side wall 71 of the movable dish and the cover wall 3 when it is buckled to prevent the agar culture medium from contacting the cover wall 3.
[0013] The petri dish also includes at least one second dish bottom side wall 6 erected around the bottom wall 4, the first dish bottom side wall 7 and the second dish bottom side wall 6 are located on the same side of the bottom wall 4. The diameter of the lid side wall 5 is larger than the diameter of the first dish bottom side wall 7 but smaller than the diameter of the second dish bottom side wall 6. This feature defines when the dish lid 1 and the dish bottom 2 are engaged At this time, the side wall 5 of the dish lid fits exactly in the middle of the first dish bottom side wall 7 and the second dish bottom side wall 6. In addition, the height of the second dish bottom side wall 6 is smaller than that of the dish lid side wall 5. This feature can prevent the second dish bottom side wall 6 from obstructing the opening or buckling of the dish lid 1 and the dish bottom 2 . The first dish bottom side wall 7 and the second dish bottom side wall 6 form a gap 13 with the bottom wall 4. The gap 13 can collect the agar medium that leaks when the agar medium is injected into the petri dish to prevent the The medium overflowed from the bottom 2 of the dish.
[0014] The petri dish also includes at least one first gripper 9 on the edge of the bottom wall 4 and at least one second gripper 8 on the edge of the cover wall 3. The existence of the first gripper 9 and the second gripper 8 makes it more convenient for the operator to open or buckle the lid 1 and the bottom 2 by hand.
[0015] The petri dish further includes at least one first protrusion 11 on the bottom wall 4 and at least one second protrusion 10 on the cover wall 3. The first protrusion 11 and the second protrusion 10 have the same shape. The function of the first protrusion 11 and the second protrusion 10 is embodied in that when a plurality of the petri dishes are arranged in a stacked structure, the first protrusion 11 of one petri dish and the second protrusion 11 of an adjacent petri dish The protrusions 10 cooperate to limit the movement of the one petri dish relative to the adjacent petri dish.
[0016] The cover wall 3 is also provided with at least one transparent observation window 21, the observation window 21 is in the shape of a convex lens, and is formed by thickening the center position of the cover wall 3, so the observation window 21 can be enlarged The colony of the target culture makes the observation of microcolony more convenient, and can prevent the contamination or the leakage of harmful culture caused by opening the lid 1 and the bottom 2 of the dish during the observation of the colony.

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