Patent ID: 6051136
Filing Date: 2000-04-18
Classification: A61M

Abstract:
A disposable sterile apparatus for blood filtration having a system for optimizing the recovery of blood comprising:a) a main tube, one end of the main tube being connectable to a first container for containing a liquid to be filtered and the other end being connectable to a second container for receiving filtered liquid;b) at least one filter disposed along the main tube, the filter defining an interior chamber, filtration material partitioning the interior chamber into two semi-chambers, the first semi-chamber having an inlet port for the inlet of liquid to be filtered and the second semi-chamber having an outlet port for the outlet of filtered liquid, the second semi-chamber further having a connector communicating with the one end of the main tube by means of a filter vent tube; andc) an air return tube for facilitating the return of air from the second container to the first container thereby equalizing the pressure in the first and second containers, one end of the air return tube being connected to the main tube at a first connection point interposed between the one end of the main tube and the inlet port of the at least one filter, the other end of the air return tube being connected to the main tube at a second connection point interposed between the outlet port of the at least one filter and the other end of the main tube.