Patent ID: 6638761
Filing Date: 2003-10-28
Classification: B01L,Y10S

Abstract:
A thermal cycling device for biological samples, comprising:a sample block having a plurality of openings for receiving sample wells of a sample well tray therein, the sample block further having an upper surface positioned about the outer periphery of the sample block in a region outside of the openings in the sample block, the upper surface of the sample block defining a plurality of recesses; an annular plate positioned above the sample block adjacent the outer periphery of the sample block, the annular plate configured to abut a bottom surface of the sample well tray when the sample well tray is positioned therein; and a plurality of spring devices interposed between the sample block and the annular plate, the spring devices positioned at least partially within the plurality of recesses in the sample block, the spring devices configured to contact the annular plate to urge the annular plate and sample well tray away from the sample block.