Centre National De La Recherche Scientifique

Université Jean Monnet Saint-Étienne

Keranova

Aurelien Bernard

Fabrizio Romano

Emmanuel Baubeau

Cyril Mauclair

Philippe Gain

Gilles Thuret

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:

Method and device for determining a minimum value of laser energy necessary for the formation of a gas bubble

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 (), the treatment device being positioned downstream from said femtosecond laser, remarkable in that the treatment device comprises an optical focusing system () for focusing the L.A.S.E.R. beam in a cutting-out plane, and a control unit () 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.

Optical focusing system of an apparatus for cutting-out a human or animal tissue

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 (), and positioned downstream from said femtosecond laser, the treatment device comprising:

Sweeping optical scanner of an apparatus for cutting-out a human or animal tissue

The present invention relates to a coupling interface between a laser source and a tissue () to be treated, characterized in that the coupling interface comprises &#x2014;a ring () including: &#x22c5;a side wall (), &#x22c5;a proximal end () intended to come into contact with the tissue () to be treated, and &#x22c5;a distal end () intended to receive the end of the laser source; &#x2014;a window () transparent to a laser beam generated by the laser source, said window being mounted in a sealed manner on the distal end () of the ring () in such a way as to close the distal end () of the ring ().

Coupling interface between a laser source and a tissue to be treated

A device for cutting human or animal tissue including a femtosecond laser that can emit a L.A.S.E.R. beam in the form of impulses. The device directs and focuses the beam onto or into the tissue for the cutting thereof. The device further includes and element to shape the L.A.S.E.R. beam, positioned in the trajectory of the beam, and to modulate the energy distribution of the L.A.S.E.R. beam in the focal plane thereof, corresponding to the cutting plane.

Growing community of inventors

Saint Etienne, France

Aurelien Bernard