Blood pumps for assisting mechanical circulation in Fontan patients

摘要

The present invention is a radial blood pump (1) for assisting blood flow (106) in a human or animal heart (205);First and second inlet channels42)First outlet flow passage52)A first electric motor (71) comprising a first stator (77) and a first internal rotor (75), whereThe first electric motorThe first and second inlet channelsAn impeller placed at the intersection with 422a,2b is configured to drive andThe impeller2a,2b is connected to the first internal rotor 75.And the impeller2a,The merging portion (22) is arranged at the intersection, and theA junction of a first flow (106) coming from said first inlet channel (41) and a second blood stream (107) coming from said second inlet channel (42) occursThe impeller2a,2)Said first and second blood flow)The first and second inlet channelsFrom 42) configured to pump into outlet flow path (51) via said merging portion (22);The impeller2a,A plurality of blades (20) configured by 2B (herein)The bladeA blade flow path (21) formed by said merging portion (22) is formed.Each blade (20) isThe first and second inlet channelsSaid first and second blood flow through 106, 106)It comprises and is configured to pump toward the outlet flow pathThe blood pump (1) is such that the first blood flow (106) and the second blood stream (107) meet at the confluence portion (22) so that the pressure difference between said first and second blood flows (106, 107) is the first and second blood flow (106, 107) Arranged and configured to be reduced before pumping to the first outlet flow pathThe present invention relates to the radial blood pump (1).Diagram