Multi-liquid-path selector valve

Abstract

The invention relates to the technical field of reagent collection instruments, in particular to a multi-liquid-path selector valve which comprises a valve body. The valve body comprises a main flow channel and a plurality of branch flow channels. The main flow channel comprises a liquid inlet end and a liquid outlet end, and the liquid inlet end is used for introducing a main reagent. The peripheral side wall of the main flow channel is provided with a plurality of linear flow guide channels corresponding to the branch flow channels, one ends of the branch flow channels are through, and the other ends of the branch flow channels are communicated with the main flow channel through the flow guide channels. At least one flow guide channel is arranged at the liquid outlet end of the main flow channel. The selector valve further comprises plunger parts arranged in the flow guide channels, and power parts for driving the plunger parts to move in the axial direction of the flow guide channels. The plunger parts are driven by the power parts to generate an opening state and a closing state, a user can select one or more paths of reagents to mix the reagents in the main flow channel according to his or her needs, and the operation is simple and convenient.

Description

【Technical field】 [0001] The invention relates to the technical field of reagent collection equipment, in particular to a multi-liquid path selection valve. 【Background technique】 [0002] The biomedical industry has developed rapidly in recent years. There are many instruments for medical scientific research. There are many kinds of reagents in the instruments that participate in the basic functions of the instruments, such as synthesis instruments, sequencing instruments, etc. It is necessary to select a variety of reagents, collect and transmit them to the reaction part. , Now various basic functions, and the choice of reagents are constantly changing, not static. In the process of reagent delivery, reagent selection collection from 0+1 to n+1 can be realized at any time. The commonly used reagent selection switch uses a 2 / 3-way valve, and the collection uses a 2 / 3 / N-way connector to realize the collection of various reagents. Now there are more than a dozen or more rea...

AI Technical Summary

Problems solved by technology

[0003] When this traditional method is used, the liquid reagent will permeate in the pipeline, and the residual reagent will be mixed into the transported reagent, which will affect the current reagent reaction and cause the function of the instrument to decrease or fail.

Traditional valves and pipe joints are unable to realize multiple reagents and multiple choices, resulting in the core functions of the instrument, greatly reducing the efficiency of sequencing and synthesis

Reagent selection pooling method, resulting in reagent contamination, unable to achieve instrument functions

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