Patent · US Active

Sample injector with conduit tip penetrating into needle opening

US11519885B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

AGILENT TECHNOLOGIES, INC. · US

Inventors

Thomas Ortmann · Ittersbach, DE
Michael Lang · Andover, US
Blasius Nocon · Waldbronn, DE

Key dates

Filing date	Apr 23, 2021
Grant date	Dec 6, 2022
Priority date	—
Expiry date	May 22, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/027
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sample injector for a chromatography system is configured for injecting a sample fluid into a mobile phase, and includes a needle and a conduit. The needle is configured for aspirating the sample fluid and includes a needle tip, a needle channel through the needle for guiding the aspirated sample fluid, and a needle opening at the needle tip into which the needle channel opens. The conduit is configured for fluidically coupling with the needle and includes a conduit tip, and a conduit channel through the conduit for guiding fluid and having a conduit opening at the conduit tip. The conduit tip and the needle tip are configured to be pressed against each other for fluidically coupling the conduit channel with the needle channel, with at least a portion of the conduit tip penetrating into the needle opening for providing the fluidic coupling between the conduit and needle channels.

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