Multi-way valve and using method thereof

Abstract

The invention discloses a multi-way valve and a using method thereof. The valve comprises a supporting frame, a motor, a valve head, a valve element, a coded disc and a first sensor, the valve head is provided with a first through hole and a plurality of second through holes, the valve element and the valve head are arranged in a sealed and sleeved manner, the valve element is driven and controlled by the motor to rotate relative to the valve head, and the valve element is provided with a first liquid port and a second liquid port. The first liquid port corresponds to the first through hole, the second liquid port corresponds to any one of the second through holes, and the first liquid port is communicated with the second liquid port; and the coded disc is provided with a plurality of alignment parts which coaxially rotate along with the valve element, and the first sensor is used for sensing the alignment parts. The multi-way valve is simple and reasonable in structure, convenient to use and control and higher in controllability, usability and practicability, has a relatively large circulation area, meets the use requirements of medical staff for multiple scenes such as large-dose reagents, is accurate in control and positioning, and effectively avoids the phenomenon that circulation of tissue reagents is blocked or cannot be conducted.

Description

technical field [0001] The present application relates to the technical field of pathological tissue equipment, in particular to a multi-way valve and its usage method. Background technique [0002] In pathological tissue processing, the dehydration of pathological tissue has a great influence on the film output. Due to the complexity of the dehydration process, more reagents are required in the dehydration process. Each process of pretreatment, treatment, dipping, and cleaning requires a large number of different reagents. During the circulation process of using different reagents, the valve body must be precisely positioned and calibrated to prevent the use of wrong reagents or reagent confusion. Existing The valve body cannot meet the needs of medical staff. [0003] In addition, each reagent needs to enter the processing tank at different temperatures, which leads to the switching valve must have a large diameter, and can respond accurately and quickly. Most medical va...

AI Technical Summary

Problems solved by technology

Due to the complexity of the dehydration process, more reagents are required in the dehydration process

Each process of pretreatment, treatment, dipping, and cleaning requires a large number of different reagents. During the circulation process of using different reagents, the valve body must be precisely positioned and calibrated to prevent the use of wrong reagents or reagent confusion. Existing The valve body cannot meet the needs of medical staff

[0003] In addition, each reagent needs to enter the processing cylinder at different temperatures, which leads to the switching valve must have a large diameter, and can respond accurately and quickly. Most medical valve bodies do not have a heating function, and the diameter is small, which cannot meet the requirements of the equipment. requirements for use

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