Catheter pump assembly including a stator
US10786610B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Jan 12, 2039 |
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.