Patent ID: 6312414
Filing Date: 2001-11-06
Classification: A61M

Abstract:
A blood suction apparatus for drawing in blood, comprising:a non-rotating centrifuge chamber having a substantially vertical axis of rotation and the chamber being shaped for enabling a stream of blood to rotate around the interior of the chamber around the axis of rotation of the chamber, the chamber having an upper end and a lower end;a blood inlet suction channel communicating to the upper end of the chamber substantially tangentially to a vertical axis;a blood outlet suction channel at the lower end of the chamber; the blood inlet and outlet channels and the chamber being so shaped and placed that a stream of blood is aspirated from the blood inlet suction channel, rotates around the chamber and exits the blood outlet suction channel due to suction applied thereto, wherein the blood is moved radially outwardly by centrifugal force while gas contained in the blood is displaced radially inwardly by the rotating blood;an enlarged gas space defined in the apparatus above the blood inlet opening of the blood inlet suction channel and communicating with the chamber, a gas outlet opening communicating in the gas space, a gas outlet suction channel communicating with the gas outlet opening and connectable to a gas suction apparatus, wherein gas in the blood flow may separate in the gas space to be drawn off through the gas outlet suction channel;a blood suction tube for sucking in blood and being connected with the blood inlet suction channel.