Extrusion type antiskid visual handheld grid counting surface sampling culture dish

Abstract

The invention discloses an extrusion type antiskid visual handheld grid counting surface sampling culture dish. The culture dish comprises a dish bottom and a dish cover, wherein the dish bottom is provided with a second buckle and a first buckle which are of stable embedded structures, the embedded structures can be loosened under stress, the movable side wall of the dish bottom moves relative tothe first side wall of the dish bottom, the cooperation of a first gripper and a second gripper enables the dish bottom and the dish cover to be opened or buckled more conveniently, when a pluralityof culture dishes are placed in a stacked manner, a first buckle and a second buckle can restrict the relative movement of every two adjacent culture dishes, an observation window enables the observation of minute colonies to be more convenient, and grid lines can simplify the counting process of the colonies.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to an extrusion-type non-slip visible hand-held grid counting surface sampling petri dish. Background technique [0002] Petri dish is one of the most widely used experimental equipment in biology. It is often used for the culture test of microorganisms on the surface of food packaging materials, tableware, etc., and the sampling of microorganisms on the surface of the object is usually wiped with a sterile cotton swab on the surface of the object to be tested, or Use sterile filter paper to stick to the surface of the object to be tested, and then transfer the cotton swab or filter paper to the buffer solution for eluting to achieve the purpose of sampling. 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 o...

AI 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 the deviation of the microbial test results on the surface of the object

In addition, the operation process of the above method is cumbersome and inefficient, which easily causes waste of human resources

When the colony of the target culture grown on the medium in the petri dish is small, it is necessary to enlarge the colony with a microscope to observe the accurate shape of the colony, and the petri dish needs to be opened during the magnification and observation of the colony, which may cause pollution or spillage of harmful cultures

When the number of colonies of the target culture grown in the culture medium in the petri dish is huge, the counting process of the colonies is more cumbersome

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