Filtering device, filtering piece and filtering method

Abstract

The invention discloses a filtering device, a filtering piece and a filtering method. The filtering device comprises a sample containing section, a sample guiding section and the filtering piece, wherein at least two longitudinal grooves are formed in the sample guiding section in a connecting manner; the filtering piece is internally provided with an inner disc body, an outer disc body, a filtering membrane and at least two connecting bridges; the inner disc body is arranged in the middle of the outer disc body and is connected with the middle of the outer disc body by the connecting bridges; the inner disc body is provided with a filtering hole; the filtering membrane is arranged at the filtering hole; the connecting bridges are arranged in the longitudinal grooves; the connecting ends of the sample containing section and the sample guiding section are connected by a connecting device and are communicated with the filtering membrane. The filtering device, the filtering piece and the filtering method disclosed by the invention have the advantages that the filtering membrane can be conveniently taken out and the pollution to a sample is effectively reduced.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a filter device, a filter element and a filter method. Background technique [0002] Some specific blood cells, such as tumor cells, exist in a small proportion, but compared with other cells in the blood, their volume is larger. Therefore, when using certain instruments for detection, in order to ensure the accuracy of detection, The cells to be detected need to be filtered, and the general cell filtration method is to filter the blood sample through a filter device. [0003] In clinical medicine, other samples may also be filtered for testing. [0004] However, most of the filter devices sold on the market are simple filters. The disadvantages are: a single filter volume is small, extremely inconvenient to use, and wastes time and manpower; Membrane removal is inconvenient for defects and in some cases even contaminates the sample. Contents of the invention [...

AI Technical Summary

Problems solved by technology

[0004] However, most of the filter devices sold on the market are simple filters. The disadvantages are: a single filter volume is small, extremely inconvenient to use, and wastes time and manpower; Membrane defects that are inconvenient to remove and in some cases even contaminate the sample

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