Verfahren zur Sensorkalibrierung und in Vitro Diagnostisches Analysegerät

Details

Veröffentlichungs-Nr.

EP4253965

Aktenzeichen

EP22166263

Anmeldetag

1. April 2022

Veröffentlichung

10. September 2025

Erteilung

10. September 2025

Rechtsraum

EP

IPC

G01N35/00A61B5/1495A61B5/145G01N21/93G01N21/27

Abstract

An automated method of calibrating a sensor 212 located in a flow-through sensor path 211 and requiring at least one oxygenated calibration fluid 221" for calibration is disclosed. The method comprises transporting a predefined amount of deoxygenated calibration fluid 221 from a fluid supply 220 into a fluidic line 213 between a fluid-selection valve 230 and the sensor path 211, transporting ambient air 232' into the fluidic line 213 before and after transporting the calibration fluid thereby forming an isolated plug of calibration fluid 221' between zones of ambient air 232', oscillating 241 the calibration fluid plug 221' back and forth within a predefined length of the fluidic line 213 comprised between the valve 230 and the sensor path 211, thereby causing reciprocating fluid film tailing 250 along the inner walls of the fluidic line 213, and thereby facilitating oxygenation of the calibration fluid 221'. An IVD analyzer 200 comprising a controller 250 configured to execute the automated method is herein also disclosed.

Anmelder

Firmen

F. Hoffmann-La Roche AG
Roche Diagnostics GmbH

Land

🇨🇭 Schweiz

Fachgebiete