Abstract:
Disclosed are specimen processing systems capable of processing specimens carried on slides. The specimen processing systems comprise opposables having at least one fluid control element (1500, 1501, 1502). The fluid control elements (1500, 1501, 1502) may be positioned between spacers or gapping elements (1450, 1452) and the opposable edges (1454, 1456). The fluid control elements may comprise an edge, such as a beveled edge or a stepped edge, as described herein, and the edge may be continuous or segmented.