Patent ID: 9352321
Filing Date: 2016-05-31
CPC Classification: B01L

Claim Text:
1. A thermal cycler comprising: a rotating unit rotatable about a rotation axis and having a holding portion unitary therewith, the holding portion configured to hold a biotip having a longitudinal direction and including a first end and a second end, the first end being located proximate the rotating unit and the second end being located distal the rotating unit such that a distance between the first end and the rotation axis is less than a distance between the second end and the rotation axis, and the biotip being charged with a reaction mixture and a liquid immiscible with the reaction mixture and having a smaller specific gravity than the reaction mixture; the holding portion including a first heating unit configured to heat the first end of the biotip; and a controller that has a first mode and a second mode, the first mode being a setting in which the rotation speed of the rotating unit is set to a first speed at which the magnitude of the centrifugal force that acts on the reaction mixture by the rotation of the rotating unit is smaller than the magnitude of the gravitational force that acts on the reaction mixture, the second mode being a setting in which the rotation speed of the rotating unit is set to a second speed at which the magnitude of the centrifugal force that acts on the reaction mixture by the rotation of the rotating unit is greater than the magnitude of the gravitational force that acts on the reaction mixture, wherein a gravitational potential energy of the first end is less than a gravitational potential energy of the second end.