公开(公告)号：US20220257413A1

公开(公告)日：2022-08-18

申请号：US17627827

申请日：2020-07-17

Applicant: KERANOVA

Inventor： Emmanuel BAUBEAU ,  Sylvie NADOLNY

IPC: A61F9/008 ,  A61B18/20

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：US20210038429A1

公开(公告)日：2021-02-11

申请号：US16964234

申请日：2019-01-25

Applicant: KERANOVA

Inventor： Sylvie NADOLNY ,  Emmanuel BAUBEAU

IPC: A61F9/008

Abstract: The present invention concerns a cutting apparatus including a femtosecond laser (1), a shaping system (2) downstream from the femtosecond laser (1), for forming a phase-modulated laser beam, an optical scanner (4) downstream from the shaping system (2), and optical focusing system (5) downstream from the optical scanner (4), a control unit (6) for controlling the shaping system (2), the optical scanner (4) and the optical focusing system (5), characterized in that the apparatus further comprises an optical coupler (3) between the femtosecond laser (1) and the shaping system (2), the optical coupler (3) including a photonic crystal optical fiber for filtering the phase-modulated laser beam (21) coming from the shaping system (2).

公开(公告)号：US20240225897A1

公开(公告)日：2024-07-11

申请号：US18609999

申请日：2024-03-19

Applicant: KERANOVA

Inventor： Sylvie NADOLNY ,  Emmanuel BAUBEAU

IPC: A61F9/008

CPC classification number: A61F9/0084 ,  A61F2009/00844 ,  A61F2009/0087 ,  A61F2009/00872 ,  A61F2009/00897

Abstract: The present invention concerns a cutting apparatus including a femtosecond laser, a shaping system downstream from the femtosecond laser, for forming a phase-modulated laser beam, an optical scanner downstream from the shaping system, and optical focusing system downstream from the optical scanner, a control unit for controlling the shaping system, the optical scanner and the optical focusing system, characterized in that the apparatus further comprises an optical coupler between the femtosecond laser and the shaping system, the optical coupler including a photonic crystal optical fiber for filtering the phase-modulated laser beam coming from the shaping system.

公开(公告)号：US20230134190A1

公开(公告)日：2023-05-04

申请号：US17951231

申请日：2022-09-23

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：US20190159933A1

公开(公告)日：2019-05-30

申请号：US16091711

申请日：2017-04-06

Applicant: KERANOVA

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：US20220104970A1

公开(公告)日：2022-04-07

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

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：US20200030145A1

公开(公告)日：2020-01-30

申请号：US16091881

申请日：2017-04-06

Applicant: KERANOVA

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：US20230404806A1

公开(公告)日：2023-12-21

申请号：US18251197

申请日：2021-10-28

Applicant: KERANOVA

Inventor： Fabrizio ROMANO ,  Cyril MAUCLAIR ,  Emmanuel BAUBEAU

IPC: A61F9/008

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

Abstract: The invention relates to a cutting apparatus including a femtosecond laser source (10) for emitting a Gaussian laser beam, a shaping system (30) including a spatial modulator of light for modulating the Gaussian laser beam, a sweeping optical scanner (40) for moving the modulated laser beam, an optical focusing system (50) for focusing the modulated laser beam, characterised in that the processing device further comprises a control unit (60) for controlling the femtosecond laser source (10), the shaping system (30), the sweeping optical scanner (40) and the optical focusing system (50), in order to produce: —at least one vertical cutting plane, and —at least one horizontal cutting plane; the spatial light modulator of the shaping system (30) being capable of emulating an axicon for generating a Bessel beam.

公开(公告)号：US20220101528A1

公开(公告)日：2022-03-31

申请号：US17275294

申请日：2019-09-20

Applicant: KERANOVA

Inventor： Aurelien BERNARD ,  Emmanuel BAUBEAU

IPC: G06T7/00

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：US20210161708A1

公开(公告)日：2021-06-03

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).