Cover for a counting, viability assessment, analysis and manipulation chamber

摘要

A transparent cover is provided for positioning on a slide to observe a fluid situated on the slide. The cover has a cover body which has an upper surface and an opposing lower surface. Portions of the lower surface are parallel to an observation region on the upper surface of the cover body. A sample inlet opening and a vent hole extend through the cover body with the observation region positioned therebetween. At least one rib protrudes downwardly from the lower surface.