Patent · US Active

Beam steering system for corneal laser surgery

US7618415B2 · kind B2 · utility

4Cited by

14References

12Claims

0Family size

Assignee

TECHNOLAS PERFECT VISION GMBH · DE

Inventors

Ralf Kessler · Heidelberg, DE
Frieder Loesel · Mannheim, DE
Thomas Sauter · Waiblingen, DE

Key dates

Filing date	Apr 9, 2004
Grant date	Nov 17, 2009
Priority date	—
Expiry date	Jun 22, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2009/00872
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A device and method for steering a laser beam to a focal point in target tissue requires generating a laser beam. Diversions of the laser beam from a central beam path are minimized by a sequential arrangement of optical steering components. In order, the beam is first directed to the center of a z-scanning apparatus which will move the focal point in the medium in a z-direction. The beam is then passed to the center of a first galvanometric mirror which introduces focal point movements in the x-direction. A second galvanometric mirror then compensates for the x-direction movement by redirecting the beam to the center of a third galvanometric mirror where focal point movements in the y-direction are introduced.

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