Biological material extraction apparatus

A biological material extraction apparatus comprising:

• a cassette seating part on which a cassette having a plurality of cells is seated;
• a cassette transferring part configured for transferring the cassette seating part;
• a tube support part located above the cassette seating part configured to support tubes that are arranged to be inserted into the cells of the cassette;
• a tube lifting part configured for vertically lifting the tube support part;
• a magnet support part located above the tube support part configured to support magnets that are arranged to be inserted into the tubes supported by the tube support part;
• a magnet lifting part configured for vertically lifting the magnet support part;
• a tube rotating part configured for rotating the tubes when the tube support part is lowered and the tubes are inserted into the cells of the cassette;
• and
• a rotary support part configured for getting in contact with and supporting the tubes at the opposite side of a first contact part of the tube rotating part when the first contact part gets in contact with sides of the tubes,
• wherein the tube rotating part comprises:
• a first motor, including a first rotary shaft, for generating rotary power;
• a pinion gear engaged with the first rotary shaft of the first motor;
• and
• the first contact part configured for getting in contact with the sides of the tubes and having a rack gear saw-tooth coupled with the pinion gear at a predetermined point,
• wherein the rotary support part comprises:
• a second motor, including a second rotary shaft, for generating rotary power:
• a support block connected with the second rotary shaft of the second motor, and
• a second contact part connected with the support block such that the second contact part is off-centered from a rotational center of the support block, the second contact part extending in parallel with the second rotary shaft of the support block,
• wherein the first contact part of the tube rotating part is movable in a horizontal direction while the second contact part of the rotary support part is unmovable in the horizontal direction,
• wherein coating material is provided on the surface of the first contact part getting in contact with the tubes so that the tubes are rotatable by a frictional force of the coating material provided on the first contact part,
• wherein a concave tube support groove is formed at a point where the second contact part gets in contact with the tubes, the tubes being stably supported and rotated seated on the tube support groove.