US Patent 7686506 Stackable tympanic thermometer probe cover cassette

Probe cover cassettes having a plurality of probe covers releasably attached to a frame are capable of being stacked so that probe covers attached to a first of the frames are nested within probe covers attached to a second of the frames. The vertical space occupied by the cassettes is reduced allowing more cassettes to be stacked in a given space. The frames of the cassettes are particularly constructed to resist twisting and bending motion when probe covers are detached from the frames using a tympanic thermometer probe.