Disposable Pipette Tips

Abstract

The invention belongs to the field of experimental apparatuses, and relates to a disposable pipette tip. The disposable pipette tip comprises a tip body, wherein the tip body comprises a suction nozzle area, a quantitative liquid storage area and a pipette active area from bottom to top, wherein a vacant area is arranged between the quantitative liquid storage area and the pipette active area, a filter element is arranged in the vacant area, a first seal ring and a second seal ring are vertically arranged on the inner surface of the lower part of the pipette active area, and the second seal ring is located on a junction surface of the pipette active area and the vacant area. The disposable pipette tip is good in sealing performance and accurate in liquid suction, a pipette can be inserted into the tip in a more labor-saving manner, and is convenient to dismount; and by means of the filter element, a liquid cannot be sucked into the pipette, and the filter element cannot influence results of smooth liquid suction and quantitative liquid suction.

Description

technical field

[0001] The invention belongs to the field of experimental equipment, and relates to equipment for pipetting, in particular to a disposable pipette tip. Background technique

[0002] Pipette tip is a kind of consumable that is widely used in medical, biological, chemical and other fields. It is used with pipette gun to quantitatively measure liquid. However, there are certain problems in the connection between the existing pipette tip and the pipette gun, for example: 1. The sealing is not good enough, liquid leakage occurs, and the accuracy is poor, which affects the experimental results; The gun is tightly locked, press the pipette head with your hand and press it hard or put the pipette into the pipette head, and stamp it hard, which will cause serious wear and tear of the pipette gun, and the former will also cause cross-contamination ; 3. When removing the pipette tip, it cannot be removed only by the thrust of the pipette gun. It needs to be pulled out ...

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