Patent · US Active

Method and device for producing curved cuts in a transparent material

US11071648B2 · kind B2 · utility

1Cited by

13References

26Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Dirk Muehlhoff · Jena, DE
Mario Gerlach · Hohen Neuendorf, DE
Markus Sticker · Jena, DE
Carsten Lang · Kassel, DE
Mark Bischoff · Jena, DE
Michael Bergt · Weimar, DE

Key dates

Filing date	Feb 13, 2019
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Jun 25, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2009/00897
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a method for forming curved cuts in a transparent material, in particular in the cornea, by the creation of optical perforations in said material using laser radiation that is focused in the material. The focal point is displaced three-dimensionally to form the cut by lining up the optical perforations. The focal point is displaced in a first spatial direction by a displaceable lens and said focal directions, in such a way that it follows the contours of the cut, which lie on a plane that is substantially perpendicular to the first spatial direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.