A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
326/4
A61N 5/06 (2006.01) A61B 18/22 (2006.01) A61B 19/00 (2006.01)
Patent
CA 2033695
A light diffuser for simultaneous photodynamic therapy and hyperthermic treatment in the oesophagus has an arrangement (14 to 18) which disperses radially the light (10) fed in by way of an optical fibre (6) and has a tube (12) filled with silicone to which are added concentrations, modulated in the axial direction, of quartz grains having a diameter of approximately 40 µm which bring about a refraction having little dependence on the wavelength.
Monnier Philippe
Van Den Bergh Hubert
Wagnieres Georges
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Novartis Ag
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