Biosensor cartridge

A biosensor cartridge comprising:

• a housing;
• a frame disposed in the housing;
• a biosensor coupled to the frame and configured to detect a bio-substance;
• a buffer solution channel that is formed in the frame and into which a buffer solution flows;
• a sample solution channel that is formed in the frame and into which a sample solution flows;
• a sensing channel configured to guide the buffer solution or the sample solution to the biosensor;
• and
• a valve configured to selectively connect the buffer solution channel or the sample solution channel to the sensing channel,
• wherein the valve comprises a channel plate rotatably coupled to the frame and having a connecting channel formed to selectively bring a plurality of ports into fluid communication with the buffer solution channel, the sample solution channel, and the sensing channel, respectively.

A biosensor cartridge comprising:

• a housing;
• a frame disposed in the housing;
• a buffer solution tank disposed on the frame and configured to accommodate a buffer solution;
• a sample solution tank disposed on the frame and configured to accommodate a sample solution;
• a biosensor detachably coupled to the frame;
• a channel formed in the frame and configured to provide a flow path for flow of a buffer solution or a sample solution;
• a valve rotatably coupled to the frame and configured to open or close the channel to selectively allow the buffer solution or the sample solution to flow to the biosensor, depending on rotation;
• a tube that is in fluid communication with the channel and through which the buffer solution or the sample solution flows;
• and
• a pump rotatably coupled to the frame and configured to generate a flow-driving force to the buffer solution or the sample solution, which flows in the channel, by pressing the tube, depending on rotation.