Patent ID: 8187216
Filing Date: 2012-05-29
Classification: A61M,B01D

Abstract:
1. A hollow fiber membrane-type artificial lung comprising: a hollow fiber bundle that is formed by arranging and laminating a plurality of porous hollow fiber membranes in one direction; a heat exchange pipe bundle that is formed by arranging and laminating a plurality of heat exchange pipes in one direction, and is apposed with the hollow fiber bundle; a potting material that is filled in a region including both end parts of the hollow fiber membrane and the heat exchange pipe bundle, and forms a blood channel extending across the hollow fiber membrane bundle and the heat exchange pipe bundle; and a housing for containing the hollow fiber bundle and the heat exchange pipe bundle, comprising the hollow fiber membrane-type artificial lung being configured such that a blood flows through the blood channel and a gas containing oxygen flows through a bore of the hollow fiber membrane so as to perform gas exchange between the blood and the gas, and a heat exchange liquid flows through a bore of the heat exchange pipe so as to perform heat exchange between the blood and the heat exchange liquid, wherein the housing includes a single region for a gas exchange part provided with the hollow fiber bundle and a single region for a heat exchange part provided with the heat exchange pipe bundle, the hollow fiber bundle of the single region for the gas exchange part being disposed adjacent to the heat exchange pipe bundle of the single region for the heat exchange part at a boundary within the blood channel between the single region for the heat exchange part and the single region for the gas exchange part, all of the hollow fiber membranes forming the hollow fiber bundle and all of the heat exchange pipes forming the heat exchange pipe bundle such that blood passing from the blood inlet port to the blood outlet port passes through one of the hollow fiber bundle in the single region for the gas exchange part or the heat exchange bundle in the single region of the heat exchange part prior to passing through the other of the heat exchange bundle in the single region of the heat exchange part or the hollow fiber bundle in the single region for the gas exchange part, a longitudinal direction of the heat exchange pipes constituting the heat exchange pipe bundle crosses a longitudinal direction of the hollow fiber membranes constituting the hollow fiber bundle.