Patent ID: 7083974
Filing Date: 2006-08-01
Classification: B01F,B01L,G01N

Abstract:
1. A rotatable sample disk configured for samples of biological material, comprising: a fill chamber for storing a first biological material, the fill chamber configured for rotation on the sample disk about a rotational axis; a plurality of first sample chambers positioned in the sample disk farther from the rotational axis than the fill chamber; a plurality of second sample chambers, each second sample chamber configured to permit fluid communication with a respective first sample chamber, the second sample chambers positioned closer to the rotational axis than the first sample chambers; a plurality of circumferential fill conduits positioned adjacent the plurality of first sample chambers, the plurality of circumferential fill conduits configured to permit transfer of the first biological material from the fill chamber to the plurality of first sample chambers upon a first rotation of the sample disk about the rotational axis; a plurality of radial fill conduits, each radial fill conduit being positioned between a second sample chamber and a first sample chamber to permit fluid communication between a second sample chamber and a first sample chamber; and means for selectively blocking the passage of the first biological material through the circumferential fill conduits after the first biological material is permitted to flow into the first sample chambers; wherein each circumferential fill conduit is positioned between adjacent first sample chambers to permit fluid communication between the adjacent first sample chambers, the plurality of circumferential fill conduits are configured so that upon rotation of the sample disk the first biological material contained in the fill chamber is permitted to flow from the fill chamber into the first sample chambers via the circumferential fill conduits, and the means for blocking the passage of the first biological material comprises an elastically deformable region configured such that upon pressing a staking device against a surface of the sample disk in the elastically deformable region the circumferential fill conduit between adjacent first sample chambers is closed off.