公开(公告)号：US11452637B2

公开(公告)日：2022-09-27

申请号：US16091881

申请日：2017-04-06

Applicant: KERANOVA ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE JEAN MONNET SAINT ETIENNE

Inventor： Fabrizio Romano ,  Aurelien Bernard ,  Cyril Mauclair ,  Emmanuel Baubeau

IPC: A61F9/008

Abstract: The present invention relates to an apparatus for cutting-out including a device for treating a L.A.S.E.R. beam generated by a femtosecond laser (1), and positioned downstream from said femtosecond laser, the treatment device comprising: a shaping system (3) positioned on the trajectory of said beam, for modulating the phase of the wave front of the L.A.S.E.R. beam according to a modulation set value calculated for distributing the energy of the L.A.S.E.R. beam in at least two impact points forming a pattern in its focal plane, an optical focusing system (5) downstream from the shaping system, the optical focusing system comprising a concentrator module for focusing the phase-modulated L.A.S.E.R. beam in a focusing plane and a depth-positioning module for displacing the focusing plane into a plurality of cutting-out planes, a sweeping optical scanner (4) positioned between the concentrator module and the depth-positioning module for displacing the pattern in the cutting-out plane in a plurality of positions.

公开(公告)号：US11234864B2

公开(公告)日：2022-02-01

申请号：US16091711

申请日：2017-04-06

Applicant: KERANOVA ,  LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITÉ JEAN MONNET SAINT ETIENNE

Inventor： Fabrizio Romano ,  Aurelien Bernard ,  Cyril Mauclair ,  Emmanuel Baubeau

IPC: A61F9/008

Abstract: The present invention relates to apparatus for cutting out a human or animal tissue, such as a cornea, or a lens, said apparatus including a treatment device for producing a pattern consisting of at least two impact points in a focusing plane from a L.A.S.E.R. beam generated by a femtosecond laser (1), the treatment device being positioned downstream from said femtosecond laser, remarkable in that the treatment device comprises an optical focusing system (5) for focusing the L.A.S.E.R. beam in a cutting-out plane, and a control unit (6) able to control the displacement of the optical focusing system along an optical path of the L.A.S.E.R. beam for displacing the focusing plane in at least three respective cutting-out planes so as to form a stack of surfaces for cutting out the tissue.

公开(公告)号：US12076276B2

公开(公告)日：2024-09-03

申请号：US17627827

申请日：2020-07-17

Applicant: KERANOVA

Inventor： Emmanuel Baubeau ,  Sylvie Nadolny

IPC: A61F9/008 ,  A61B18/20 ,  A61B18/22

CPC classification number: A61F9/008 ,  A61B18/201 ,  A61B2018/2227 ,  A61F2009/0087 ,  A61F2009/00872

Abstract: The present invention relates to a cutting device comprising: a laser source (1) for emitting an initial laser beam (11) in the form of pulses, a shaping system (2) positioned downstream of the femtosecond laser (1), for transforming the initial laser beam (11) into a single phase-modulated laser beam, an optical coupler (3) between the laser source (1) and the shaping system (2), the optical coupler (3) including an optical fibre (31), remarkable in that the cutting device further comprises a polarisation corrector (7) for modifying the polarisation of the initial laser beam (11) at an input end of the optical coupler (3) such that the polarisation of the laser beam at an output end of the optical coupler (3) corresponds to a desired reference polarisation.

公开(公告)号：US11717445B2

公开(公告)日：2023-08-08

申请号：US17554049

申请日：2021-12-17

Applicant: KERANOVA ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE JEAN MONNET SAINT ETIENNE

Inventor： Fabrizio Romano ,  Aurelien Bernard ,  Cyril Mauclair ,  Emmanuel Baubeau

IPC: A61F9/008

CPC classification number: A61F9/00827 ,  A61F9/0084 ,  A61F9/00825 ,  A61F2009/0087 ,  A61F2009/00872 ,  A61F2009/00897

Abstract: The present invention relates to apparatus for cutting out a human or animal tissue, such as a cornea, or a lens, said apparatus including a treatment device for producing a pattern consisting of at least two impact points in a focusing plane from a L.A.S.E.R. beam generated by a femtosecond laser (1), the treatment device being positioned downstream from said femtosecond laser, remarkable in that the treatment device comprises an optical focusing system (5) for focusing the L.A.S.E.R. beam in a cutting-out plane, and a control unit (6) able to control the displacement of the optical focusing system along an optical path of the L.A.S.E.R. beam for displacing the focusing plane in at least three respective cutting-out planes so as to form a stack of surfaces for cutting out the tissue.

公开(公告)号：US12008756B2

公开(公告)日：2024-06-11

申请号：US17275294

申请日：2019-09-20

Applicant: KERANOVA

Inventor： Aurelien Bernard ,  Emmanuel Baubeau

IPC: G06K9/00 ,  G06T7/00 ,  A61F9/008

CPC classification number: G06T7/0014 ,  A61F9/00825 ,  A61F2009/00851 ,  G06T2207/10101 ,  G06T2207/30041

Abstract: The invention concerns a method for determining a minimum value of L.A.S.E.R. energy necessary to form, by using a LASER source, a gas bubble in an ocular tissue, the method comprising:



acquisition (200) of a reference image,
emission (210) at a sampling point, of a L.A.S.E.R. beam,
acquisition (220) of one (or more) current image(s) of the ocular tissue,
detection (230) of one (or more) gas bubble(s) by comparing the current image(s) and the reference image,
determination (240, 250) of the minimum value based on the detected gas bubble(s).

公开(公告)号：US11504277B2

公开(公告)日：2022-11-22

申请号：US17045231

申请日：2019-04-05

Applicant: KERANOVA

Inventor： Emmanuel Baubeau

IPC: A61F9/008

Abstract: The invention relates to a treatment apparatus including a device for conditioning a LASER beam generated by a femtosecond laser, the conditioning device comprising an optical sweeping scanner (30) and a focusing optical system (40) downstream of the optical sweeping scanner (30), remarkable in that a pivoting mirror (32) of the optical sweeping scanner (30) is positioned between an object focal plane Fobject of the focusing optical system (40) and the focusing system (40).