BLOOD PUMP AND BLOOD PUMP TRANSPLANTATION ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a highly reliable, light-weight and relatively inexpensive blood pump and a blood pump transplantation assembly capable of reducing percutaneous incision parts and being used for a long time inside a human body as an ventricle helping device with less problems of clots and blood damages. SOLUTION: An inducer 53 is constituted of an inducer hub 73 and at least one inducer blade 52 attached to the inducer hub 73, an impeller 55 is constituted of an impeller hub 58 and at least one blade 54 attached to the impeller hub 58 and is arranged on the downstream side of the inducer 53. A diffusion device 20 composed of a diffusion device hub 34 and at least one diffusion device blade 38 attached to the diffusion device hub 34 is provided inside a flow pipe (pump housing 12) on the downstream side of the impeller 55, and the upstream end of the diffusion device hub 38 is constituted so as to be provided with a diameter larger than the downstream end of the impeller hub 58.