US 4,072,578 A · Multi-chambered module for use in monitoring growth of microorganisms

Abstract

A multi-chambered module for holding separate samples of nutrient media. A plurality of chambers, with access means into each, is permanently attached to an electrically non-conductive base. Embedded within the base under the chambers is a plurality of electrically conductive leads. Terminal portions at one end of the leads emerge in spaced pairs into each chamber forming electrodes therein. At the other end of the leads terminal portions are exposed for contact with an electrical source. A signal passed through the electrodes in galvanic contact with media permits the impedance thereof to be determined, with changes of impedance directly associated with microorganism growth therein.

Claims14

Dependent claims

A multi-chambered module for use in monitoring growth of microorganisms in nutrient media comprising:

an electrically non-conductive base;
a plurality of chambers lying supported on one surface of and permanently attached to said base, each chamber having access means for placing sample material therein;
and a plurality of electrically conductive leads completely embedded within said base under said chambers and lying flat within the plane of said base, terminal portions at one end of said leads emerging in pairs into said chamber in spaced relationship to each other to form electrodes for galvanic contact with said sample material placed within each chamber, said terminal portions emerging into said chambers in angular disposition with respect to the plane of said base, and terminal portions at the other ends of said leads exposed for contact with an electrical source.

Dependencies are inferred from the claim text.

Multi-chambered module for use in monitoring growth of microorganisms

Life of this patent

Multi-chambered module for use in monitoring growth of microorganisms

Life of this patent

Abstract

Claims14