Patent · US Active

Surgical microscopy system and method for performing eye surgery

US7905887B2 · kind B2 · utility

18Cited by

1References

25Claims

0Family size

Assignee

CARL ZEISS SURGICAL GMBH · DE

Inventors

Gerhard Moeller · Oebisfelde, DE
Anja Seiwert · Aalen, DE
Michel Perez · Dijon, FR
Peter Amend · Clare, AU

Key dates

Filing date	Oct 26, 2005
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Dec 16, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B3/13
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A surgical microscopy system comprises microscopy optics for generating an image of an eye under surgery. A pattern generator generates a pattern to be superimposed with the image. An eye-tracker is provided for tracking a position of the superimposed pattern with respect to the image in case of a movement of the eye. The superimposed pattern comprises pattern elements that are equally distributed on first and second circles of different sizes, in order to give assistance when placing a suture during a corneal transplant. The superimposed pattern may also provide an assistance for orientating a toric intra-ocular lens.

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