Centrifuge bowl for autologous blood salvage
US5919125A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0464
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved centrifuge bowl and related system is disclosed which is particularly apt for enhanced autologous blood salvage applications. The centrifuge bowl assembly includes a rotatable outer bowl, an internal spacer interconnected therewithin, and a stator assembly for introducing/removing fluid during rotation of the outer bowl and internal spacer. The outer bowl and internal spacer are configured to define a lateral passageway at the bottom of the assembly which terminates in an upward-facing port for fluid passage therethrough into an annular, cylindrical collection region. The annular port may be defined by a peripheral fin on the spacer and may be of a width that is less than the width of the cylindrical, annular collection region, wherein separated blood components (e.g. red blood cells) will accumulate across the width of the port during blood fill/wash cycles. As a result, enhanced washing is realized while maintaining throughput rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.