Nucleic acid extraction apparatus

A nucleic acid extraction apparatus comprising:

• (1) a vessel stand adapted to support a group of extraction vessels each comprising a reactor tube to be filled with a magnetic carrier, a sample and a reagent solution, a drain cup and a nucleic acid recovery tube, all as secured to a supporting plate;
• (2) a distribution means for dispensing a sample or other solution into the reactor tube of said extraction vessel installed on said vessel stand;
• (3) a stirring means for stirring the magnetic carrier, sample, and reagent solution within the reactor tube;
• (4) a holding means for holding the magnetic carrier stationary within the reactor tube;
• (5) a discharging means for discharging the solution in the reactor tube into the drain cup or nucleic acid recovery tube while the magnetic carrier is held stationary within the reactor tube;
• (6) a heating means for heating the reactor tube containing at least said magnetic carrier;
• (7) a transfer means for transferring the vessel stand carrying the extraction vessels horizontally;
• and
• (8) a control means for controlling said respective means.

A vessel for nucleic acid extraction which comprises:

• a reactor tube, a drain cup, and a nucleic acid recovery tube as secured to a supporting plate,
• a channel cover adapted to provide a connecting path between the nucleic acid recovery tube and the reactor tube as mounted in a top opening of said recovery tube,
• a cover with a hole for connection of an exhaust nozzle as mounted air-tight in a top opening of said drain cup,
• a rotary element comprising a piercing pipe for insertion and connection of a distribution nozzle, a valve passageway adapted to provide a connecting path between the reactor tube and the drain cup or the recovery tube, and a rotating grip as mounted air-tight and axial-rotably in a top opening of said reactor tube, and
• one end of said valve passageway being connected liquid-tight to a discharging pipe extending axially within the reactor tube and the other end being connected air-tight to a passageway communicating with the interior of the drain cup.