Shambaugh Jr., Charles R.,White, Daniel G.,Marquis, Richard A.,Trichi, Kartikeyan,LaRose, Jeffrey A.
申请号：
AU2013257469
公开号：
AU2013257469B2
申请日:
2013.11.14
申请国别(地区):
AU
年份:
2016
代理人:
摘要：
#$%^&*AU2013257469B220160317.pdf#####ABSTRACT The invention relates to an axial flow blood pump (100). The blood pump comprises a tubular housing (104) defining a pump chamber lumen and a rotor (108) within the lumen rotatable on a rotation axis concentric with said lumen. The rotor has a blood upstream end and a blood downstream end and further includes magnetic drive poles (34) by which the rotor is rotated, the poles being configured to direct blood flow axially within the lumen. The rotor has one or more of each of a magnetic and hydrodynamic bearing surface (44 and 46) to enable said rotor to rotate freely suspended within said lumen, and a tapered axial extension at said blood downstream end to enhance downstream blood flow characteristics in an axial direction when said rotor is rotating. The blood pump also includes a motor stator magnet ring (110) surrounding said lumen within which said rotor is centered and a volute (106) downstream of the tapered axial extension of said rotor to minimize thrombus and increase pressure of pumped blood. The blood pump includes a blood flow straightener element (135) within said volute and extending axially into the pump chamber lumen toward said tapered axial extension of said rotor to affect blood flow discharge from said rotor. AH26(80408491):AEM
