Sakura Tissue-Tek Biopsy Uni Cassette Red Lot of 750 Cassettes

The Sakura Finetek (Part Number 4045) Tissue-Tek® Uni-Cassette® Biopsy Cassette is a specialized histology consumable designed to securely hold small, friable tissue samples—such as needle core biopsies or endoscopic fragments—during the fluid exchange processes of fixation, dehydration, and infiltration. This specific model is molded in Red acetal polymer, a color coding option often utilized by laboratories to visually flag "Stat" specimens, specific tissue types (like GI biopsies), or specific patient protocols to ensure they receive prioritized attention in the workflow.

The defining feature of this "Biopsy" version is its grid of 1 mm square pores (micromesh) on both the base and the lid, replacing the wider slots found in standard processing cassettes. This fine mesh ensures maximum fluid exchange while preventing the loss of tiny tissue fragments, effectively eliminating the need for wrapping specimens in lens paper or using biopsy bags. The "Uni-Cassette" design incorporates a hinged lid that comes attached to the base; upon the first closure, the hinge fractures to allow the lid to snap firmly into place, yet it can be easily opened and removed for the embedding stage, reducing the risk of lid-to-base mismatching.