Patent ID: 7666159
Filing Date: 2010-02-23
Classification: A61M

Abstract:
1. A venous reservoir for an extracorporeal blood circuit, comprising: a rigid outer enclosure which contains a filtering mass in the form of a hollow cylinder, an upper lid which comprises a plurality of couplings for the inflow of blood and connected to a portion of space delimited by said filtering mass, an inflow connector at a bottom which is connected to said portion of space and comprises two couplings for connection to blood inflow lines which arrive respectively from a patient and from a cardiotomy reservoir, a diaphragm which is arranged below the upper lid and is adapted to receive the blood that enters through said couplings provided in a peripheral region of the lid with such flow conditions as to have no component which is perpendicular to said diaphragm, and comprising a central hole which is provided with, at an edge of said central hole, a plurality of screens which are adapted to direct the blood which flows on the diaphragm so that it enters said central hole; a column, which is arranged at an axis of the central hole of the diaphragm, is provided with longitudinal vanes which protrude upwardly until they skim a rim of said central hole and are adapted to follow the blood in its flow by gravity towards a collection region at a base of the enclosure, said column being provided at a top with a protrusion which faces a direct vicinity of an outlet of a central coupling in the central region of the lid, so as to follow the blood which enters through said central coupling and flows by gravity on a wall of said protrusion until said blood comes into contact with said vanes.