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Patent Summary

(12) Patent Application: (11) CA 2756584
(54) English Title: DEVICE FOR LASIK
(54) French Title: DISPOSITIF POUR LASIK

Abstracts

English Abstract




An apparatus for LASIK is equipped with the following:
- a first laser radiation source for generating first laser radiation pulses
having a power density for bringing about disruption in corneal tissue;
- first means for guiding and shaping the first laser radiation pulses into
the
corneal tissue;
- a second laser radiation source for generating second laser radiation
pulses having a power density for bringing about ablation of corneal tissue;
- second means for guiding and shaping the second laser radiation pulses
in relation to the cornea;
- a controller with a first treatment program for controlling the first means
and the first laser radiation pulses for the purpose of producing an incision
(72)
in the cornea (60); and with
- a second treatment program for controlling the second means and the
second laser radiation pulses for the purpose of reshaping the cornea and
changing its imaging properties, wherein
- the first treatment program generates regular corneal surface structures
(68) which cause a rainbow-glare effect in connection with the imaging
properties of the cornea;
and
- a third treatment program which controls the second means and the
second laser radiation pulses for the purpose of removing the aforementioned
regular structures (68).


French Abstract

L'invention concerne un dispositif pour LASIK doté de ce qui suit : une première source (12) de rayonnement laser qui génère de premières impulsions (14) de rayonnement laser dont la densité de puissance permet d'obtenir une rupture du tissu de la cornée, des premiers moyens (24, 44, K) qui guident et forment la première impulsion de rayonnement laser dans le tissu de la cornée, une deuxième source (46) de rayonnement laser qui forme des deuxièmes impulsions (48) de rayonnement laser dont la densité de puissance permet d'obtenir l'ablation du tissu de la cornée, des deuxièmes moyens (40, 42, 44, 24) qui guident et forment les deuxièmes impulsions de rayonnement laser par rapport à la cornée, une commande (50) dotée d'un premier programme de traitement (56a) qui commande les premiers moyens et les premières impulsions de rayonnement laser de manière à former une découpe (72) dans la cornée (60) et un deuxième programme de traitement (56b) qui commande les deuxièmes moyens et les deuxièmes impulsions de rayonnement laser en vue de reformer et modifier les propriétés de formation d'image de la cornée, le premier programme de traitement formant des structures de surface cornéennes régulières (68) qui entraînent un effet d'arc-en-ciel dans les propriétés de formation d'image de la cornée et un troisième programme de traitement (56c) qui commande les deuxièmes moyens et les deuxièmes impulsions de rayonnement laser en vue d'éliminer lesdites structures régulières (68).



Patent Details

(51) International Patent Classification (IPC):
  • A61F 9/01 (2006.01)
(72) Inventors (Country):
  • WUELLNER, CHRISTIAN (Germany)
  • VOGLER, KLAUS (Germany)
  • DONITZKY, CHRISTOF (Germany)
(73) Owners (Country):
  • WAVELIGHT GMBH (Germany)
(71) Applicants (Country):
  • WAVELIGHT GMBH (Germany)
(74) Agent: RIDOUT & MAYBEE LLP
(45) Issued:
(86) PCT Filing Date: 2009-03-23
(87) PCT Publication Date: 2010-09-30
Examination requested: 2012-03-15
(30) Availability of licence: N/A
(30) Language of filing: English

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