Patent ID: 8815574
Filing Date: 2014-08-26
Classification: B01L,C12M,C12N,G01N

Abstract:
1. A system for determining the presence or absence of microbes in a specimen, said system comprising: a sealed blood culture bottle for holding a specimen comprising a growth media; and a circuit comprising: a signal generator that generates a signal with a frequency selected to provide current from the sensor electrode to the ground reference electrode through an intercapacitance between the sensor electrode and the ground reference electrode, such that an electrodynamic field forms over at least a portion of the specimen; and a test device capable of measuring a value of the electrodynamic field, wherein the value is capacitance which is indicative of the dielectric constant of the specimen, and wherein a measured change in capacitance is indicative of changes in the specimen caused by metabolic processes of the microbes contained therein.