Catheter pump assembly including a stator
US9308302B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/148
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.