ALPHANOV CENTRE TECHNOLOGIQUE OPTIQUE ET LASERS;MORIA LASE;CENTRE HOSPITALIER UNIVERSITAIRE DE BORDEAUX
发明人:
CHASSAGNE, BRUNO,DELOISON, FLORENT,TOUBOUL, DAVID,SALIN, FRANCOIS,DESLANDES, PIERRE
申请号：
CA2981222
公开号：
CA2981222A1
申请日:
2016.04.01
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
the present invention relates to a device for ophthalmic surgery includes a laser source (1) adapted to provide a beam of laser pulses (8) between the picosecond and nanosecond； an optical system for focusing the beam (10) to provide for impulsi laser focal point s (6)； and a system of displacement of the beam of laser pulses is configured.s move the focal point (6) along a predetermined path.according to the invention, the laser source (1) generates a laser beam (8) picosecond pulses with nanosecond, focused in the vicinity of a surface (25) of the anterior segment of the i (4), the focal point (6) is located at a distance from an optical axis is not null (21) symmetry of the segment； the world of (4).the displacement system (30) of the laser pulse beam has one degree of freedom in rotation around an axis of rotation (36) so as to move the focal point (6) in accordance with a curved path (16) is located in an annular region around the optical axis (21) of sym view of the anterior segment of the device； and (4) configured with an opening for ophthalmic surgeryin order to reduce the number of geometrical optical aberrations in the focal point (6), and the curved path (16) in the annular region around the optical axis (21) of symmetry of the anterior segment of the i (4).La présente invention concerne un appareil de chirurgie ophtalmique comprenant une source laser (1) adaptée pour délivrer un faisceau d'impulsions laser (8) de durée comprise entre la picoseconde et la nanoseconde； un système optique de focalisation (10) pour focaliser ledit faisceau d'impulsions laser en un point focal (6)； et un système de déplacement du faisceau d'impulsions laser configuré pour déplacer ledit point focal (6) suivant une trajectoire prédéterminée. Selon l'invention, la source laser (1) génère un faisceau d'impulsions laser (8) picoseconde à nanoseconde, focalisé au voisinage d'une surface (25) du segment antérieur de l'il (4), le point focal (6) étant situé à une distance d non nul
