ALPHANOV CENTRE TECHNOLOGIQUE OPTIQUE ET LASERS;CENTRE HOSPITALIER UNIVERSITAIRE DE BORDEAUX;MORIA LASE
发明人:
BRUNO CHASSAGNE,DAVID TOUBOUL,FLORENT DELOISON,FRANÇOIS SALIN,PIERRE DESLANDES
申请号：
BR112017021162
公开号：
BR112017021162A2
申请日:
2016.04.01
申请国别(地区):
BR
年份:
2018
代理人:
摘要：
The present invention relates to an ophthalmic surgical apparatus comprising a laser source (1) suitable for emitting a laser pulse beam (8) with a duration of 1 picosecond to 1 nanosecond； an optical focusing system (10) for focusing said laser pulse beam at a focal point (6)； and a system for moving the laser pulse beam configured to move said focal point (6) along a predetermined path. In accordance with the present invention, the laser source (1) generates a picosecond to nanosecond laser pulse beam (8), focused near a surface (25) of the anterior segment of the eye (4), the focal point ( 6) Being located at a non-zero distance d from an optical axis (21) of symmetry of the anterior segment of the eye (4), the system (30) for moving the laser pulse beam includes a single degree of freedom. of rotation about an axis of rotation (36) so as to move said focal point (6) along a curved path (16) located in an annular area around the anterior segment symmetry optical axis (21) from the eye (4)； and the ophthalmic surgical apparatus is configured with a numerical aperture to limit geometric optical aberrations at the focal point (6) and the entire curved path (16) in said annular area around the segment symmetry optical axis (21) anterior of the eye (4).a presente invenção refere-se a um aparelho cirúrgico oftálmico que compreende uma fonte laser (1) adequada para emitir um feixe de pulsos de laser (8) com uma duração de 1 picossegundo a 1 nanossegundo； um sistema para focagem ótica (10) para focalizar o dito feixe de pulsos de laser em um ponto focal (6)； e um sistema para mover o feixe de pulsos de laser configurado para mover o dito ponto focal (6) ao longo de um percurso pré-determinado. de acordo com a presente invenção, a fonte de laser (1) gera um feixe de pulsos de laser de picossegundo a nanossegundo (8), focado próximo a uma superfície (25) do segmento anterior do olho (4), o ponto focal (6) estando localizado a uma distância d diferente de zero a partir de u
