Transfer pipette

Abstract

The invention discloses a transfer pipette comprising a connecting end with one end provided with a sharp transfer port and the other end sleeved with a rubber pipe, wherein an outer diameter of the connecting end is gradually reduced towards a port direction. The transfer pipette, because the outer diameter of the connecting end which is sleeved with the medical rubber pipe is gradually reduced towards the port direction, is convenient to sleeve the rubber pipe at the connecting end of the transfer pipette; generally, the inner diameter of the rubber pipe is lightly less than the maximum outer diameter of the connecting end, so that the rubber pipe sleeved at the connecting end is firmly connected, thus avoiding falling and air leakage; the small outer diameter of the port of the connecting end is convenient to sleeve the rubber pipe, so as to avoid a phenomenon of hurting fingers of an operator.

Description

technical field [0001] The invention relates to the field of chemical instruments, in particular to a pipette. Background technique [0002] When doing experiments, such as when doing cell culture, operations such as drawing, adding cell culture medium, and resuspending cultured cells are generally completed by using ear wash balls and pipettes connected together by medical rubber tubes, and it is done with one hand. . The specific connection method between the pipette and the ear washing ball is as follows: take an ear washing ball, a piece of medical rubber tube and a pipette, insert the tip of the ear washing ball into the rubber tube and connect them closely, and insert the mouth of the pipette into the rubber tube. The other end of the tube, so that the pipette and the ear wash ball are connected through a rubber tube, which is convenient for use. In this way, the ring finger and little finger of the operator's right hand hold the ear wash ball in the palm, and the th...

AI Technical Summary

Problems solved by technology

[0003] When the rubber tube is socketed with the nozzle of the pipette, the inner diameter of the rubber tube is slightly smaller than the outer diameter of the nozzle of the pipette, so that the rubber tube is tightly sleeved on the pipette, the sealing effect is good, and it will not leak During the experimental operation of cell culture, the pipette must be replaced constantly, and then the rubber tube must be removed from the pipette and then put on again, but the rubber tube is not easy to fit on the pipette, and it needs to be constantly socket, which makes it easier to implement

In addition, the nozzle sometimes hurts the operator's fingers when the rubber tube is sleeved on the pipette

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