| abstract |
The invention relates to a device for fractionating a fluid (F) comprising particles and extracting a particle-depleted volume and a particle-enriched volume, comprising: a cylindrical reservoir (20), - a fractionation body (25), extending along a central axis (A) of said reservoir in which it is housed, between an upstream end (27) and a downstream end (28), a section of said body of fractionation decreasing abruptly at its downstream end, - the fractionating body defining with said reservoir, a first channel (29) opening at said downstream end, to form a recirculation zone, - extraction means (30). , 40) for extracting said depleted volume and said enriched volume downstream of said fractionation body. |