Inventors:
- SAINT PAUL MN, US
TIMOTHY J. NIES - STILLEATER MN, US
BARRY W. ROBOLE - WOODVILLE MN, US
ASSUMPTA A. G. BENNAARS-EIDEN - WOODBURY MN, US
JODI L. CONNELL - SAINT PAUL MN, US
TONYA D. BONILLA - WOODBURY MN, US
TOMOTHY A. KOHMAN - COTTAGE GROVE MN, US
RUTHANN R. DUDA - EAGAN MN, US
Assignee:
3M INNOVATIVE PROPERTIES COMPANY - SAINT PAUL MN
International Classification:
A61L 2/28
C12Q 1/22
Abstract:
A microbial indicator device for liquid disinfection comprises a first cavity, a source of biological activity fluidically coupled to the first cavity via a portion of a first fluidic path, a filter membrane positioned in a second fluidic path for a disinfectant, and a first coupling portion fluidically coupled to the source of biologically activity via the second fluidic path. The filter membrane has a first side and a second side, wherein the first side is in fluid communication with the first fluidic path. The filter membrane has a pore size sufficient to retain at least a portion of the source of biological activity on the first side. The device further comprises a frangible container contained in the first cavity, wherein a liquid in the container is in fluid communication with the first cavity when the container is fractured.