Patent ID: 8747742
Filing Date: 2014-06-10
Classification: A61M,B01D,F28D,F28F

Abstract:
1. A multipipe heat exchanger used for extracorporeal circulation of blood, comprising: a heat exchanger case; a bottom member attached to one end of said heat exchanger case; and a plurality of heat transfer pipes loaded in inside of said heat exchanger case, in which said blood flows from one end through said bottom member, said bottom member having said bottom surface including a groove portion extending along said direction of normal and a raised bottom portion provided on each of opposing end sides of said groove portion, and said raised bottom portion being inclined such that a distance between said raised bottom portion on a side where said blood inlet port is provided and said one end of said heat transfer pipe is smaller than a distance between said raised bottom portion opposite to the side where said blood inlet port is provided and said one end of said heat transfer pipe.