Modular blood treatment cartridge

Abstract

A modular blood treatment system with a blood treatment cartridge having a blood treatment media receiving opening defining an entrance of a first chamber. The first chamber defines a first interior space and a second interior space. At least one cardiotomy blood sucker port is in fluid communication with the first interior space via a cardiotomy manifold. The cardiotomy manifold preferably defines a downward curving surface from the at least one cardiotomy blood sucker port to the first interior space having a radius of about 2.54 to 7.62 cm. A venous blood inlet is in fluid communication with a second interior space within the interior space. A first blood treatment media is interposed between the first interior space and the second interior space. A second blood treatment media is interposed between the second interior space and the blood treatment media receiving opening. A blood storage section has an outlet port extends substantially across the blood treatment media receiving opening. In one embodiment, at least one blood diverter is located in the blood storage section to form two funnel-shaped blood flow channels between the blood treatment media opening and the outlet port. The funnel-shaped blood flow channels preferably define a first downward flow axis at an angle of about 20 to 24 degrees with respect to horizontal. The funnel-shaped blood flow channels preferably define a second downward flow axis at an angle from horizontal of about 3 to 7 degrees laterally from the first downward flow axis.