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

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.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a pressure-out type anti-leakage and anti-skid visible hand-held 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 surfac...

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

Images