Improvements in diagnosis by means of fluorescent light...

G - Physics – 01 – N

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354/29, 73/51.5

G01N 21/64 (2006.01) A61B 5/00 (2006.01) A61B 6/00 (2006.01) G01N 21/31 (2006.01)

Patent

CA 2027561

A sample (1) is irradiated by a pulse from a laser (2), creating fluorescence radiation, which is brought, in imaging relation or otherwise, to a detector (6) sensing from the same sample (1) in a plurality of spectral intervals (6A-6D), for obtaining intensity values. The radiation may be sensed in imaging relation, creating a multiplicity of said pluralities. The spectral intervals may be wavelength defined by passband filters (5A-5D) or time interval defined time spectral intervals controlled by a computer (7), which makes a numerical evaluation comprising a division. The tissue character may then be evaluated from the evaluation.

On soumet à une impulsion de rayonnement laser (2) un échantillon (1), créant un rayonnement fluorescent amené en relation d'imagerie ou autre, à un détecteur (6) procédant à une détection à partir dudit échantillon (1) et dans une pluralité d'intervalles spectraux (6A à 6D), afin d'obtenir des valeurs d'intensités. Le rayonnement peut être détecté dans une relation d'imagerie, créant une multiplicité desdites pluralités. Les intervalles spectraux peuvent être définis en longueur d'onde par des filtres de bande passante (5A-5D), ou des intervalles spectraux de temps définis par des intervalles de temps, commandés par un ordinateur (7), effectuant une évaluation numérique comprenant une division. On peut alors évaluer le caractère des tissus à partir de l'évaluation.

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