Patent ID: 7087203

Claim:
An optical-bio disc for performing a blood-typing assay, said disc configured to be rotated and said disc comprising: a substrate; a separation chamber in proximity to said substrate, said separation chamber including a first portion and a second portion, wherein the first portion contains a filter means and includes a first inlet port positioned at an opening of said disc such that a material delivered from a non-disc source is deposited directly on said filter means; a first mixing chamber in direct fluid communication with said second portion of said separation chamber so as to receive material communicated directly from the separation chamber; a second inlet port connected to the first mixing chamber and configured to communicate material received from a source other than the separation chamber to the first mixing chamber; a second mixing chamber in direct fluid communication with said second portion of said separation chamber so as to receive material communicated directly from the separation chamber; a third inlet port connected to the second mixing chamber and configured to communicate material received from a source other than the separation chamber to the second mixing chamber; a first detection chamber in direct fluid communication with said first mixing chamber, said first detection chamber including a first capture field; and a second detection chamber in direct fluid communication with said second mixing chamber, said second detection chamber including a second capture field; wherein the disc and chambers are configured such that fluid is transmitted from at least one of the chambers to another of the chambers that is in fluid communication therewith in response to rotation of the disc.