Multi-channel pipette for bacterial culture

Abstract

The invention is applicable to the field of bacterial culture and specifically relates to a multi-passage suction pipe for bacterial culture. The multi-passage suction pipe for bacterial culture comprises an upper suction pipe, a lower suction pipe, a hydraulic unit, a sterilizing device, a controller and a touch screen, wherein the upper suction pipe is used to store different liquids needing to be used in a bacterium specimen staining process; the lower suction pipe serves as a passage for a staining liquid before entering the upper suction pipe and as a passage for the staining liquid after flowing out of the upper suction pipe; the hydraulic unit is used to draw the staining liquid in the upper suction pipe and discharge the staining liquid out of the upper suction pipe; the sterilizing device is used to sterilize the upper suction pipe, the lower suction pipe and the hydraulic unit; and the controller and the touch screen are both mounted on the sidewall of the upper suction pipe, and options for a user to select liquid types and liquid volumes are arranged on the touch screen. The multi-passage suction pipe for bacterial culture is capable of sucking different liquids needing to be used in the bacterium specimen staining process without frequently changing thin pipes to suck different liquids, thereby greatly simplifying the liquid suction link in the bacterium specimen staining process.

Description

technical field [0001] The invention is applicable to the field of bacterial culture, and specifically relates to a multi-channel straw for bacterial culture. Background technique [0002] Gram's stain is the most commonly used bacterial staining method. This experiment requires students to correctly grasp the operation technique of this staining method and understand its significance in identifying bacteria. Dyeing principle: Bacteria are dyed blue by primary dyeing of crystal violet. The cell wall of Gram-positive bacteria (G+) has many layers of peptidoglycan, and the peptidoglycan has a spatial network structure, and after dehydration with ethanol, the network structure is more dense, and the dye complex is not easy to leak from the cell, which is still blue. However, Gram-negative bacteria (G-) have more cell wall lipids and fewer peptidoglycan layers, and the peptidoglycan is a planar sheet structure, which is easily dissolved by ethanol, which increases the permeabi...

AI Technical Summary

Problems solved by technology

[0004] In the above process, because a variety of liquid reagents need to be used, it is necessary to manually change the liquid suction pipe several times to absorb the above-mentioned liquid reagents. If the same suction pipe is used to suck different liquid reagents successively, it is easy to cause the chemical substance in the suction pipe. The effect of the experiment is affected by the reaction, but the process of repeatedly changing the straws will cause a waste of time and increase the experimental consumables, and the subsequent disinfection of multiple straws is more troublesome

Images