Fine needle arrangement for cell sampling

Abstract

Fine needle arrangement for taking a sample of cells from suspicious lesions by using fine needle aspiration (FNA) technique, comprising a tubular needle member (1), a storage compartment (2) enclosing a chamber, and a coupling (3) to which a connector may be attached. The chamber is configured with a gradually increasing cross-sectional area from the distal part of the chamber to the proximal part of the chamber, such that the chamber has no residual spaces where cell samples may be trapped, and that an efficient air streaming is achieved.

Description

technical field [0001] The present invention relates to a needle assembly for extracting a cell sample from a suspicious lesion using the so-called fine needle aspiration (FNA) technique, which increases the number of cells in the sample and increases ultrasound visibility compared with prior art assemblies. Further, this component also provides for killing all affected cells dislocated in the needle channel after sampling to prevent local spread (spreading), and also provides a method for increasing cell density when extracting cell samples from cysts. Furthermore, the assembly provides a means of distributing the sample droplets on the microscope slide without significant loss of material. [0002] Finally, the component of the invention also relates to a method for extracting a sample of cells from a tumor with the above-mentioned advantages. Background technique [0003] Almost all Western women will undergo morphological examination for breast cancer at some point in t...

AI Technical Summary

Problems solved by technology

[0010] 2. Ultrasound visibility is too low

Currently, the use of a second microscope glass to smear the sample, which often results in a considerable loss of sample material due to wetting of the second glass, is also abandoned

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