초록 ▼

The present invention provides a heat exchanger using hollow fibers formed of an organic polymer as the heat transfer tubes; a blood oxygenating device comprising a blood oxygenator combined with the aforesaid heat exchanger; and a small-sized and lightweight blood oxygenator which comprises a blood

The present invention provides a heat exchanger using hollow fibers formed of an organic polymer as the heat transfer tubes; a blood oxygenating device comprising a blood oxygenator combined with the aforesaid heat exchanger; and a small-sized and lightweight blood oxygenator which comprises a blood oxygenator of the hollow-fiber membrane type having the aforesaid heat exchanger incorporated thereinto to form an integral unit, and hence has excellent gas exchange and heat exchange performance.

대표청구항 ▼

A method of oxygenating blood in a blood oxygenating device of the outside perfusion type which has a heat exchange section for controlling the temperature of blood and a gas exchange section for effecting the gas exchange of blood, wherein, in one housing, a blood flow path of the heat exchange sec

A method of oxygenating blood in a blood oxygenating device of the outside perfusion type which has a heat exchange section for controlling the temperature of blood and a gas exchange section for effecting the gas exchange of blood, wherein, in one housing, a blood flow path of the heat exchange section is connected with a blood flow path of the gas exchange section, comprising: passing blood to be oxygenated through said heat exchange section containing a bundle of linearly extending hollow fibers made of an organic polymer as the heat transfer medium, through which fibers a heat exchange fluid flows, said bundle of hollow fibers being supported and packed in said heat exchange section so as to be fluid-tight at both ends thereof, and said heat exchange section having a heat exchange fluid inlet chamber and a heat exchange fluid outlet chamber provided at respective ends of said bundle of hollow fibers of said heat exchange section in such a way as to communicate with the bores of said hollow fibers, said blood flowing through the heat exchange section in a direction substantially perpendicular to the bundle of hollow fibers of said heat exchange section, and; passing blood to be oxygenated through said gas exchange section, said gas exchange section having a plurality of compartments each containing a bundle of linearly extending hollow fibers as the gas exchange medium, through which fibers an oxygenating gas flows, said compartments being separated by blood flow channels narrowed by baffles, said bundle of hollow fibers of said gas exchange section being supported and packed in said compartments so as to be substantially parallel to said baffles and to be fluid-tight at both ends thereof, and said gas exchange section having a gas inlet chamber and a gas outlet chamber provided at respective ends of said bundle of hollow fibers of said gas exchange section in such a way as to communicate with the bores of said hollow fibers, said blood flowing through said compartments in a direction substantially perpendicular to the bundle of hollow fibers of said gas exchange section.