Liquid-based cell extraction filter screen capable of fully filtering

Abstract

The liquid-based cell extraction filter screen comprises a mounting cylinder, a fixed cylinder is slidably connected to the interior of the mounting cylinder, and a primary filter screen, an intermediate filter screen and a precise filter screen are sequentially arranged in the fixed cylinder from top to bottom; by arranging the primary filter screen, when filtering is carried out, filtrate firstly passes through the surface of the primary filter screen, the passing area of the filtrate is increased due to the fact that the surface of the primary filter screen is a curved surface, meanwhile, the filtrate flows towards the periphery along the curved surface, and then the filtrate is dispersed, so that filtered cells are prevented from being accumulated on the surface of the primary filter screen; the primary filter screen, an intermediate filter screen and a precise filter screen are arranged, so that filtrate dispersed by the primary filter screen further sequentially passes through the intermediate filter screen and the precise filter screen, cells of different levels in liquid-based cells are filtered step by step, the liquid-based cells are filtered more sufficiently, and the filtering efficiency of the liquid-based cells is improved. The effect of fully filtering is achieved.

Description

technical field [0001] The invention relates to the technical field of cell extraction, in particular to a fully filterable liquid-based cell extraction filter. Background technique [0002] Liquid-based cytology is a part of exfoliative cytology, which is to put exfoliated cytology specimens that are difficult to handle in traditional methods into an intermediary liquid to remove blood, mucus and other interfering components that affect diagnosis, so as to improve the diagnosis rate. Purpose; The intermediary liquid is called cell preservation solution, which has the functions of maintaining cell shape, softening mucus, and processing red blood cells; exfoliative cytology is a method of using normal exfoliated cells of human tissue for diagnosis, such as cervical smears. [0003] In the process of liquid-based cell extraction, filtration needs to be carried out, and traditional filtration generally uses a filter screen and a funnel for filtration, which is relatively simple...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the phenomenon that the cells that have been filtered on the filter screen are accumulated in the prior art, thereby reducing the filtering effect of the filter screen and making the cell filtration insufficient, and to provide a fully filterable liquid-based Cell extraction filter, the liquid-based cell extraction filter has the effect of dispersing liquid-based cells to prevent cell accumulation and multi-stage filtration, making the filtration more sufficient

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