Agitating – Stirrer within stationary mixing chamber – Magnetic stirrer
Patent
1989-12-13
1992-06-09
Jenkins, Robert W.
Agitating
Stirrer within stationary mixing chamber
Magnetic stirrer
366218, B01F 1308
Patent
active
051201356
ABSTRACT:
The methods and apparatus disclosed herein allow for the controlling of the suspension of particles in a liquid medium. The method comprises intermittently magnetically causing at least a portion of a device immersed in the fluid medium (i) to rotate from a rest position about an approximately horizontal axis to a second position at an angle not greater than about 135 degrees from the rest position and (ii) to return to a rest position. The frequency of movement of the device is sufficient to control the suspension of particles in the medium. The method is particularly applicable to controlling a suspension of cells, for example, erythrocytes, in a liquid medium with a minimization of lysis.
REFERENCES:
patent: 4090263 (1978-05-01), Hoffa
patent: 4227815 (1980-10-01), Hoffa
patent: 4752138 (1988-06-01), Rufer
Jenkins Robert W.
Leitereg Theodore J.
Morry Mary
Syntex (U.S.A.) Inc.
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