US 12,436,163 B2
Leakage test
Reto Keller, Trachslau (CH)
Assigned to ROCHE DIAGNOSTICS OPERATIONS, INC., Indianapolis, IN (US)
Filed by Roche Diagnostics Operations, Inc., Indianapolis, IN (US)
Filed on Nov. 8, 2022, as Appl. No. 18/053,510.
Claims priority of application No. 21211392.2 (EP), filed on Nov. 30, 2021.
Prior Publication US 2023/0168268 A1, Jun. 1, 2023
Int. Cl. G01N 35/10 (2006.01); B01L 3/02 (2006.01)
CPC G01N 35/1097 (2013.01) [B01L 3/0293 (2013.01); G01N 35/1016 (2013.01); B01L 2400/0622 (2013.01); G01N 2035/1025 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An automated method of performing a leakage test of a fluidic system of an in-vitro diagnostic device comprising an electrically conductive probe fluidically connected to a fluid supply via a fluidic conduit and interacting electrically with a reference element, the method comprising:
activating a pump to provide a fluid from the fluid supply into the probe;
deactivating the pump;
positioning the probe so that a tip of the probe is at a predetermined distance from a reference surface of the reference element;
detecting an electrical signal or a change in an electrical signal between the probe and the reference element in a predetermined measuring time period;
determining a leakage based on the detected electrical signal or the detected change in an electrical signal; and
in response to determining the leakage, triggering at least one maintenance action.