Patent · US Expired

Device for separating and discharging plasma

US7404931B2 · kind B2 · utility

10Cited by

10References

15Claims

0Family size

Assignee

Roche Diagnostics Operations, Inc. · US

Inventors

Guenter Frey · Schliengen, DE
Norbert Ladiges · Zeven, DE
Siegfried Noetzel
Bernd Roesicke · Mannheim, DE

Key dates

Filing date	Nov 10, 2003
Grant date	Jul 29, 2008
Priority date	—
Expiry date	Sep 28, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/2575
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention concerns plasma separation on a microliter scale. The method/system according to the invention is able to provide plasma in the range of several microliters within a very short time as it is required, for example, in modern analyses by carrier-bound test elements. Plasma separation and plasma release is carried out in two separate consecutive steps of the method using the device according to the invention such that hemolysis during plasma separation can be avoided despite an accelerated procedure. The device comprises a disposable unit in which the device is characterized by an economical and simple method of production.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.