초록 ▼

An oxygenator comprises a cylindrical housing provided with inlet and outlet ports for oxygen, and a bundle of hollow fibers disposed within the housing. The porous hollow fibers are made of polyolefin resin, sized at 100 to 300mm2－CO2 exchange is effected through the porous walls of the hollow fibe

An oxygenator comprises a cylindrical housing provided with inlet and outlet ports for oxygen, and a bundle of hollow fibers disposed within the housing. The porous hollow fibers are made of polyolefin resin, sized at 100 to 300mm2－CO2 exchange is effected through the porous walls of the hollow fibers.

대표청구항 ▼

An oxygenator, comprising: an elongated hollow housing having a longitudinally extending axis; a bundle of porous hollow fibers made of polyolefin resin arranged within the housing in the axial direction thereof, each fiber having an inner diameter of 100 to 300m10 to 50m200 to 1,000A and a porosity

An oxygenator, comprising: an elongated hollow housing having a longitudinally extending axis; a bundle of porous hollow fibers made of polyolefin resin arranged within the housing in the axial direction thereof, each fiber having an inner diameter of 100 to 300m10 to 50m200 to 1,000A and a porosity of 20 to 80%; an oxygen chamber formed between the outer surface of the fiber bundle and the inner surface of the housing; inlet and outlet oxygen ports extending through the wall of the housing so as to communicate with the oxygen chamber; partition walls supporting the end portions of the hollow fibers, separating the open ends of the hollow fibers from the oxygen chamber and defining the length of the oxygen chamber; and inlet and outlet blood ports communicating with the interior space of each of the hollow fibers; the hollow fibers having polar radicals introduced into at least the outer surfaces of the polyolefin resin of the hollow fiber at the portions supported by the partition walls. An oxygenator, comprising: an elongated hollow housing having a longitudinally extending axis; a bundle of porous hollow fibers made of polyolefin resin arranged within the housing in the axial direction thereof, each fiber having an inner diameter of 100 to 300m, a wall thickness of 10 to 50m, an average pore size of 200 to 1,000A and a porosity of 20 to 80%; an oxygen chamber formed between the outer surface of the fiber bundle and the inner surface of the housing; inlet and outlet oxygen ports extending through the wall of the housing so as to communicate with the oxygen chamber; partition walls supporting the end portions of the hollow fibers, separating the open ends of the hollow fibers from the oxygen chamber and defining the length of the oxygen chamber; inlet and outlet blood ports communicating with the interior space of each of the hollow fibers; and a radially inwardly directed projection provided on an inner wall of the housing for fastening a central portion, in the lengthwise direction, of the hollow fiber bundle relative to the housing.