Laser system for reshaping the cornea

Details Laser system for reshaping the cornea Laser system for reshaping the cornea

A - Human Necessities

61

F

A61F 9/007 (2006.01) A61F 9/01 (2006.01) A61F 9/009 (2006.01)

Patent

CA 2177580

Systems that deliver radiation in a defined pattern to a cornea (50) or other surface of the human body for the purpose of controllably shrinking collagen tissue beneath the surface and, as a result, causing the surface to become contracted or reshaped. In one embodiment, a coupler (125) is shaped on one side to closely contact an anterior surface the cornea and includes holes (171, 173) part way through it from its other side for receiving ends of optical fibers (133, 137). The optical fibers are illuminated with infra-red radiation from diode lasers (127, 129)

On décrit des systèmes d'application de radiations selon une empreinte déterminée à une cornée (50) ou autre surface du corps humain, dans le but de provoquer la rétraction régulée des tissus de collagène sous la surface et d'ainsi provoquer la contraction ou la remise en forme de ladite surface. Selon un mode de réalisation, un coupleur (125) possède une face à laquelle on a donné une forme adéquate pour venir en contact intime avec la surface antérieure de la cornée et comprend sur son autre face des orifices (171, 173) le traversant partiellement et recevant des fibres optiques (133, 137). Les fibres optiques sont illuminées par une radiation infrarouge émise par des diodes lasers (127, 129).

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