Pump and method for mixed flow blood pumping
US10724534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2015 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/148
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blood pump includes a housing and a rotor within the housing configured to rotate along an axis. The rotor may include a hub, the hub having regions with blades and regions without blades. The regions without blades may have a constant outer diameter and may extend along at least one fourth the length of the hub. The regions with blades may have an increasing outer diameter. Blades may be disposed on a downstream end region of the hub and extend downstream of the hub. Blades may begin approximately halfway along the axial length of a motor stator located about a hub and extend downstream of the motor stator. Blades may have portions that produce axial fluid flow and radial fluid flow with improved flow characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.