Pipetting device suitable for continuous sample adding

Abstract

The invention discloses a pipetting device suitable for continuous sample adding. The pipetting device comprises a shell, a piston assembly, a pushing device, a sample feeding assembly and a countingassembly, wherein the piston assembly, the pushing device and the sample feeding assembly are arranged in the shell; the sample injection assembly comprises a sample tube, a liquid outlet pump and a liquid eduction tube, the liquid eduction tube is in through connection with a pump opening of the liquid outlet pump, the liquid eduction tube vertically extends out of the shell, the liquid outlet pump is connected to a cover body of the sample tube, and the top of the liquid outlet pump is connected with the push rod; the counting assembly comprises a counter and a touch pressing assembly, the counter is fixed to the shell, the touch pressing assembly is connected to the shell, the counter comprises an outer shell and a counting disc sequence composed of two counting discs, a display windowis formed in the outer shell, a counting button is arranged at the top of the outer shell, and a reset knob is arranged on the right side of the outer shell. The pipetting device is mainly designed for the 96-hole trough plate sample adding process, the error rate can be remarkably reduced, and the accuracy of an operation result is guaranteed.

Description

technical field [0001] The invention relates to the field of sample adding devices, in particular to a pipetting device suitable for continuous sample adding. Background technique [0002] Common liquid pipetting devices usually complete one sample addition after one sampling, and the sample addition process is discontinuous. When it is necessary to sequentially add samples to all holes on a plate structure with 96 wells, it will take more time. Repeat the above process again and again, due to the large sample volume and high repeatability of adding samples one by one, the operator often forgets the specific hole position that he has already added the sample during the continuous sampling and sample adding process, especially In the case that there are samples or other contents in the hole, it is even more difficult to judge the sample loading position simply from whether the hole is empty. During the sampling process, it is easy to forget (or misremember) the number of sam...

AI Technical Summary

Problems solved by technology

[0002] Common liquid pipetting devices usually complete one sample addition after one sampling, and the sample addition process is discontinuous. When it is necessary to sequentially add samples to all holes on a plate structure with 96 wells, it will take more time. Repeat the above process again and again, due to the large sample volume and high repeatability of adding samples one by one, the operator often forgets the specific hole position that he has already added the sample during the continuous sampling and sample adding process, especially In the case that there are samples or other contents in the hole, it is even more difficult to judge the sample loading position simply from whether the hole is empty. During the sampling process, it is easy to forget (or misremember) the number of samples added, which will affect the operation results, and even need to abandon the aforementioned sample loading process and re-load the sample, which will not only cause waste of materials but also consume too much operation. staff energy

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