Patent ID: 8147394
Filing Date: 2012-04-03
Classification: A61M,B04B

Abstract:
1. A method for washing and continuous separation of blood constituents using blood and a sterile washing solution, with a density lower than that of the blood, which are introduced into a centrifugation chamber provided with an inner cylindrical side wall that rotates about an axis of revolution, characterized in that an axial tubular flow of blood with a local thickness is formed against the inner cylindrical side wall, and, between the latter and said axial tubular flow of blood, a film of sterile washing solution is formed with a thickness substantially less than the local thickness, flowing in the same axial direction as the tubular flow of blood in such a way that, under the effect of the centrifugal force, this film gradually passes through the thickness of blood in the direction of the axis of revolution of the chamber.