Laboratory scale milling process

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/14 (2006.01) A63G 31/16 (2006.01) B02C 17/00 (2006.01) B02C 17/16 (2006.01) B02C 17/20 (2006.01) G09B 9/08 (2006.01)

Patent

CA 2436574

There is provided a process fo reducing particle size of a drug, the process comprising: (a) a step of dispersing about 10 g or less of the drug in a suitable volume of a liquid dispersion medium to form a suspension; (b) a step of bringing together in a vessel grinding media, magnetically activatable means for stirring and the suspension; (c) a step of magnetically activating the means for stirring to effect milling of the suspension to a weight average particle size not greater than about 1 µm; and (d) a step of separating the resulting milled suspension from the grinding media and the magnetically activatable means for stirring.

L'invention porte un procédé destiné à réduire la taille des particules constituant un médicament, qui consiste a) à disperser environ 10 grammes ou moins de médicament dans un volume approprié d'une dispersion liquide de manière à obtenir une suspension; b) à mettre la mouture dans une cuve, à la mélanger avec des moyens mis en route par magnétisme; c) à mettre en route lesdits moyens afin de mélanger la mouture et de broyer la suspension jusqu'à atteindre une granulométrie moyenne ne dépassant pas environ 1 µm; et d) à séparer la suspension broyée ainsi obtenue de la mouture et de l'organe mis en route par magnétisme en vue de son agitation.

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