Patent ID: 8641657
Filing Date: 2014-02-04
Classification: A61M

Abstract:
1. A blood transfer chamber, comprising: a recipient having a top, a bottom, a lateral wall, an inlet and an outlet; the lateral wall extending between the top and the bottom; the lateral wall having at least a first transversal section having a first area, the outlet being arranged on the bottom, the outlet having a second transversal section having a second area which is smaller than the first area; and a filter arranged between the inlet and the outlet, the filter having a filtering wall comprising an upper portion and a lower portion, the upper portion having a plurality of upper openings, the lower portion having a plurality of lower openings; wherein the upper openings and lower openings are configured in such a way that the upper portion offers a resistance to fluid passage per surface unit which is lower than a resistance to fluid passage per surface unit offered by the lower portion; wherein the surface area of the upper openings per surface unit of the upper portion is greater than the surface area of the lower openings per surface unit of the lower portion.