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US 4,728,500 AGranted
Stirrer for biochemical reactions
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorYuji Higo
Life of this patent
Estimating the term…
Abstract
A stirrer for biochemical reactions comprising a magnetically permeable vessel for containing a solution of biochemically reacting substances, at least one magnetic bead placed in the vessel, and a magnetic device which is installed outside the vessel and generates an oscillating magnetic field acting on the bead. The stirrer is advantageous for stirring the solution of biochemically reacting substances for biochemical reactions without direct contact.
Claims4
A stirrer for biochemical reactions, comprising:
- at least one vessel formed of magnetically permeable material for containing a solution of a biochemically reactive substance;
- at least one magnetic bead positionable in each said at least one vessel;
- means for generating a regularly oscillating magnetic field in each said at least one vessel for oscillating said at least one bead, said generating means comprising a bar having pieces of magnet implanted thereon and positioned relative to said at least one vessel so as to magnetically affect said at least one bead in said at least one vessel, and drive means for regularly oscillating said bar, whereby said at least one bead is regularly oscillated.
Dependencies are inferred from the claim text.