US 11,717,445 B2
Optical focusing system of an apparatus for cutting-out a human or animal tissue
Fabrizio Romano, Beynost (FR); Aurelien Bernard, Saint Etienne (FR); Cyril Mauclair, Planfoy (FR); and Emmanuel Baubeau, Saint Etienne (FR)
Assigned to CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITÉ JEAN MONNET SAINT ETIENNE, Saint Etienne (FR)
Filed by KERANOVA, Saint Etienne (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE JEAN MONNET SAINT ETIENNE, Saint-Etienne (FR)
Filed on Dec. 17, 2021, as Appl. No. 17/554,049.
Application 17/554,049 is a continuation of application No. 16/091,711, granted, now 11,234,864, previously published as PCT/EP2017/058224, filed on Apr. 6, 2017.
Claims priority of application No. 1653038 (FR), filed on Apr. 6, 2016; application No. 1653039 (FR), filed on Apr. 6, 2016; application No. 1653040 (FR), filed on Apr. 6, 2016; and application No. 1657386 (FR), filed on Jul. 29, 2016.
Prior Publication US 2022/0104970 A1, Apr. 7, 2022
Int. Cl. A61F 9/008 (2006.01)
CPC A61F 9/00827 (2013.01) [A61F 9/0084 (2013.01); A61F 9/00825 (2013.01); A61F 2009/0087 (2013.01); A61F 2009/00872 (2013.01); A61F 2009/00897 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus for cutting out a human or animal tissue, said apparatus including a femtosecond laser configured to emit a laser beam in the form of pulses and a treatment device configured to produce a pattern in a focal plane from the laser beam generated by the femtosecond laser, the treatment device being positioned downstream from said femtosecond laser, wherein the treatment device comprises:
a spatial light modulator between the source and the focal plane, wherein said spatial light modulator is programmed using at least a phase mask configured to modulate the phase of the wavefront of the laser beam originating from the femtosecond laser so as to obtain a modulated laser beam,
an optical focusing system configured to focus the modulated laser beam in a cutting plane, and
a control unit configured to control the movement of the optical focusing system along an optical path of the laser beam to move the focal plane into at least three respective cutting planes so as to form a stack of tissue cutting surfaces.