A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 5/06 (2006.01) A61B 17/22 (2006.01) A61B 18/22 (2006.01) A61M 25/10 (2006.01)
Patent
CA 2255714
The present invention provides improved meth- ods and devices for delivering light to the surface of a biological column, for example in treatment of Bar- rett's esophagus using PDT. The improvement com- prises the use of an extended irradiation segment or window (as seen in panel A of drawing Fig. 1). The improved methods of the present invention per- mit treatment lenghts of the biological column to be increased without increasing the incidence of stricture formation.
L'invention concerne des dispositifs et des procédés améliorés servant à éclairer la surface d'une voie biologique en forme de colonne afin de traiter, par exemple, l'ulcère de Barrett au moyen d'une thérapie photodynamique. Cette amélioration consiste à utiliser un segment ou une fenêtre d'éclairage allongés (illustration A de la figure 1). Ces procédés améliorés permettent d'allonger la longueur de traitement de ces voies sans augmenter les risques d'apparition d'un rétrécissement.
Overholt Bergein
Panjehpour Masoud
Stonefield Mike
Fetherstonhaugh & Co.
Overholt Bergein
Qlt Inc.
Qlt Phototherapeutics Inc.
Thompson Cancer Survival Center
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