Daniel H. VanCamp,Kimberly A. Robertson,Steven R. Larsen
申请号：
US16825654
公开号：
US20200306434A1
申请日:
2020.03.20
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A blood pump includes an impeller； a drive shaft coupled to the impeller and configured to rotate with the impeller； and a rotor coupled to the drive shaft and configured to rotate with the drive shaft. The rotor includes a driven magnet having an outer surface. A corrosion-resistant coating may be disposed on the outer surface of the driven magnet. A stator is disposed adjacent the rotor and configured to drive the rotor, causing the rotor to rotate； and a motor is configured to drive the stator. A protection assembly may be disposed adjacent the stator and configured to receive an end of the drive shaft, and may include a protection assembly housing enclosing a protective fluid chamber, the protective fluid chamber including the driven magnet and at least a portion of a bearing configured to engage the end of the drive shaft.
