Cell-block cytology aspiration needle

A cell-block cytology aspiration needle is a single-use, sterile instrument designed for fine needle aspiration (FNA) to collect fluid or tissue samples. It captures cells in an absorbent foam pad, allowing them to be processed like solid tissue—useful for detailed analysis such as histology, immunohistochemistry, or in situ hybridization.

These devices are typically regulated as medical instruments, often requiring compliance with safety and performance standards depending on the jurisdiction. They are supplied sterile and pre-packaged for clinical use, with variations in design but consistent functionality for cytology specimen preparation.