KIRCHHOFF, FRANK,SIESS, THORSTEN,KERKHOFFS, WOLFGANG
申请号：
CA3094857
公开号：
CA3094857A1
申请日:
2019.03.21
申请国别(地区):
CA
年份:
2019
代理人:
摘要：
An intravascular blood pump Having a rotatable shaft (25) carrying an impeller (34) and a housing (20) with an opening (35) through which the shaft extends with the impeller positioned outside the housing. The shaft and the housing have surfaces (25A, 33A) forming a circumferential gap which converges towards the impeller-side end of the gap and which has a minimum gap width of preferably no more than 5 µm, more preferably no more than 2 µm.
