Patent · US Active

Method and device for the serial ejection of two fluids comprising a spacer

US8544682B2 · kind B2 · utility

2Cited by

24References

25Claims

0Family size

Assignee

SWEDISH ORPHAN BIOVITRUM AG · SE

Inventors

Jonas Fransson · Uppsala, SE
Birger Hjertman · Sundbyberg, SE

Key dates

Filing date	Nov 21, 2008
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Oct 28, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A device for the serial ejection of at least two fluid components comprises a spacer (19) providing at least two states, i) a first state allowing a front piston (7) to be displaced forwards by action on a rear piston (17) while a fluid volume is retained in a rear chamber (5) and ii) a second state allowing the rear chamber to volumetrically shrink while fluid is transferred past (or through) the front piston thereby enabling the use of a liquid, initially provided in only the rear chamber, for the dual purposes of mixing and rinsing.

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