发明名称 |
Catheter pump assembly including a stator |
摘要 |
A catheter pump assembly is provided that includes a proximal a distal portion, a catheter body, an impeller, and a flow modifying structure. The catheter body has a lumen that extends along a longitudinal axis between the proximal and distal portions. The impeller is disposed at the distal portion. The impeller includes a blade with a trailing edge. The flow modifying structure is disposed downstream of the impeller. The flow modifying structure has a plurality of blades having a leading edge substantially parallel to and in close proximity to the trailing edge of the blade of the impeller and an expanse extending downstream from the leading edge. In some embodiments, the expanse has a first region with higher curvature and a second region with lower curvature. The first region is between the leading edge and the second region. |
申请公布号 |
US9308302(B2) |
申请公布日期 |
2016.04.12 |
申请号 |
US201414209889 |
申请日期 |
2014.03.13 |
申请人 |
THORATEC CORPORATION |
发明人 |
Zeng Zijing |
分类号 |
A61N1/362;A61M1/10;A61M1/12;A61M1/36 |
主分类号 |
A61N1/362 |
代理机构 |
Knobbe, Martens, Olson & Bear LLP |
代理人 |
Knobbe, Martens, Olson & Bear LLP |
主权项 |
1. A catheter pump assembly, comprising:
a proximal portion; a distal portion; a catheter body having a lumen extending along a longitudinal axis between the proximal and distal portions; an impeller disposed at the distal portion, the impeller including a blade with a trailing edge; and a flow modifying structure disposed downstream of the impeller, the flow modifying structure having a plurality of blades having a leading edge substantially parallel to and in close proximity to the trailing edge of the blade of the impeller and an expanse extending downstream from the leading edge, the expanse having a first region with higher curvature and a second region with lower curvature, the first region being between the leading edge and the second region; wherein the flow modifying structure is collapsible from a deployed configuration to a collapsed configuration. |
地址 |
Pleasanton CA US |