Height-adjustable full-automatic PCR (Polymerase Chain Reaction) sampling system

Abstract

The invention discloses a height-adjustable full-automatic PCR (Polymerase Chain Reaction) sample adding system which comprises a main body, a mechanical arm, a lifting device, a liquid sucking device, a sucking head placing device, a drag chain and a liquid pulling and moving head device, the mechanical arm, the suction head placing device, the drag chain and the pipette tip pulling and moving device are all arranged on the main body; the lifting device is arranged on the mechanical arm and slides on the mechanical arm; one end of the drag chain is connected with the mechanical arm, and the other end is connected with the lifting device; the position and the liquid suction volume of the liquid suction device are controlled through the PLC, and the liquid suction device is used for controlling the liquid suction volume; the suction head placing device is used for placing suction heads, and the pipette tip pulling and moving device is used for removing the suction heads; the synchronous belt wheel is driven by the synchronous belt, so that liquid suction is more accurate, and the minimum liquid suction volume reaches 0.1 microliter; the initial liquid suction height is automatically calculated according to the input parameter instrument, and the instrument automatically descends in the liquid suction process, so that the suction head wall is prevented from being stained with excessive liquid on the premise of ensuring that the liquid can be sucked every time, and the volume of the added liquid is more accurate.

Description

technical field [0001] The invention relates to the technical field of automatic sample adding, in particular to a height-adjustable automatic PCR sample adding system. Background technique [0002] At present, the minimum suction volume of the fully automatic sample addition system on the market can only reach 0.5ul, and the suction height is fixed and cannot be automatically lowered according to the drop of the liquid level. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to propose a height-adjustable fully automatic PCR sample adding system in order to solve the shortcomings existing in the prior art. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [0005] A fully automatic PCR sample adding system with adjustable height, including a main body, a mechanical arm, a lifting device, a suction head placing device, a drag chain and a pipetting head device; the mechanical arm, the suct...

AI Technical Summary

Problems solved by technology

[0002] At present, the minimum suction volume of the fully automatic sampling system on the market can only reach 0.5ul, and the suction height is fixed and cannot be automatically lowered according to the drop of the liquid level.

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