The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2004
Filed:
May. 26, 2000
Institut Pasteur, Paris, FR;
Abstract
The invention concerns an apparatus and a method for measuring at least one optical characteristic, which can include in particular turbidity (T), absorbance (A) and fluorescence (F), of a medium ( ), and a micro-bioreactor, a connector and associated male and female parts. The apparatus comprises a light source ( ) provided with means for controlling ( ) the intensity of the beam transmitted ( ) by the source, a photodetector ( ) for measuring the intensity of the beam reflected ( ) by the medium, a feedback regulating system ( ) operating on the control means such that the measured intensity of the reflected beam is equal to a predetermined nominal intensity, and means for reading the transmitted beam intensity, said intensity representing the medium optical characteristic(s). The apparatus also comprises means for adjusting the nominal intensity, such that the transmitted beam stabilised intensity is within a predetermined range. The invention is applicable to micro-bioreactors.