초록 ▼

An extracorporeal blood circuit comprises a generally cylindrically shaped blood reservoir; a generally cylindrically shaped oxygenator arranged coaxially and adjacently below said reservoir; and a generally cylindrically shaped heat exchanger attached coaxially and adjacently below said oxygenator.

An extracorporeal blood circuit comprises a generally cylindrically shaped blood reservoir; a generally cylindrically shaped oxygenator arranged coaxially and adjacently below said reservoir; and a generally cylindrically shaped heat exchanger attached coaxially and adjacently below said oxygenator. The reservoir encloses an upper defoamer and multiple filter element adapted to receive cardiotomy blood within the interior of said upper element and to discharge treated blood to said reservoir; and a lower defoamer and filter element adapted to receive arterial blood within the interior of said lower element and to discharge treated blood to said reservoir; and has a lower blood outlet. The oxygenator has an inlet adapted to integrally receive blood directly from the outlet of said heat exchanger and an outlet adapted to return the oxygenated blood to the patient.

대표청구항 ▼

An integrated unit for an extracorporeal blood circuit comprising: a generally cylindrically shaped blood reservoir having an upper cardiotomy blood inlet, a lower arterial blood inlet, and a lower blood outlet; a generally cylindrically shaped oxygenator arranged coaxially and adjacently below said

An integrated unit for an extracorporeal blood circuit comprising: a generally cylindrically shaped blood reservoir having an upper cardiotomy blood inlet, a lower arterial blood inlet, and a lower blood outlet; a generally cylindrically shaped oxygenator arranged coaxially and adjacently below said reservoir; and a generally cylindrically shaped heat exchanger having a blood inlet, a blood outlet and a flow path around a heat exchange element, and attached coaxially and adjacently below said oxygenator; wherein said reservoir encloses a generally cylindrically shaped upper defoamer and multiple filter element for receiving cardiotomy blood from said cardiotomy blood inlet within the interior of said upper defoamer and multiple filter element and for discharging treated blood within said reservoir; and a lower defoamer and filter element for receiving arterial blood from said arterial blood inlet within the interior of said lower element and for discharging treated blood within said reservoir; and having the lower reservoir blood outlet for interconnection with said blood inlet of said heat exchanger; said oxygenator including a plurality of microporous membrane fibers for circulating oxygen within the fibers and a flow path including an inlet for receiving blood from the outlet of said heat exchanger and circulating the blood around the fibers for oxygenating the blood, and having an outlet for returning the oxygenated blood to the patient; and an elastic membrane positioned within said reservoir adjacent the blood outlet thereof whereby the device is normally in the closed occluded position and is retained in the open non-occluded position only by a minimum predetermined hydrostatic pressure corresponding to a sufficient quantity of blood present in the reservoir.