Blood sampling device comprising at least one filter
US9023292B2 · kind B2 · utility
18Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Sep 20, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/15142
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a device for sampling blood by capillarity for separating a plasma phase of the blood from the cell phase. The device is a strip and includes a filter having a membrane with no clumping agents, a prefilter for spreading blood over the surface of the membrane; and an absorbent paper downstream from the filter. The membrane is dimensioned to cover only a part of the surface of the prefilter and the migration of blood by capillarity within the prefilter takes place essentially lengthwise relative to the strip before blood comes into contact with the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.