Blood processing cartridges and systems, and methods for extracorporeal blood therapies
US10369263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Apr 17, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/201
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In embodiments of the invention, there is provided a dialyzer or filter comprising hollow fibers, in which blood flows on the exterior of the hollow fibers, and dialysate or filtrate may flow on the inside. The external surfaces of the hollow fibers may have properties of smoothness and hemocompatibility. The fiber bundle may have appropriate packing fraction and may have wavy fibers. Optimum shear rates and blood velocities are identified. Geometric features of the cartridge, such as pertaining to flow distribution of the blood, may be different for different ends of the cartridge. Air bleed and emboli traps may be provided. Lengthened service life may be achieved by combinations of these features, which may permit additional therapies and applications or better economics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.