Optical focusing system of an apparatus for cutting-out a human or animal tissue
US11234864B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 6, 2017 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Oct 24, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.