Patent ID: 7458952

Claim:
A cardiopulmonary bypass system for connection to a venous-side blood source and an arterial-side blood return, comprising: a reservoir having an inlet in fluid communication with the venous-side blood source, and an outlet with a manually operable valve enabling a perfusionist to control the valve and sequester blood in the reservoir from a remainder of the bypass system; a venous air trap having an inlet in fluid communication with the venous-side blood source and an outlet, the venous air trap for removing air entrained within blood from the venous-side blood source passing through the air trap; a pump for moving blood from the reservoir toward the arterial side blood return, the pump having an inlet in fluid communication with the outlets of the reservoir and the venous air trap; an oxygenator for oxygenating blood from the a venous-side blood source; and a heat-exchanger through which the blood is transferred, the reservoir, the air trap, the pump, the heat exchanger and the oxygenator all provided in a common housing, wherein the inlet of the reservoir defines a ‘Y’ connector having a first end communicating with the venous-side blood source and a second branched end, a first branch of the branched end communicating with the reservoir, and a second branch of the branched end communicating with the inlet of the air trap, and at of each of the inlet and outlet to the reservoir is provided a three-way valve, the valve at the inlet of the reservoir directing blood flow when (i) in a first position into the reservoir, (ii) in a second position into the air trap, and (iii) in a third position, to both the reservoir and air trap, and the valve at the outlet of the reservoir permitting blood flow when (i) in a first position from the reservoir, (ii) in a second position from the air trap, and (iii) in a third position, from both the reservoir and air trap.