The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Mar. 28, 2014
Applicant:
Carl Zeiss Meditec Ag, Jena, DE;
Inventor:
Michael Eichler, Aalen, DE;
Assignee:
Carl Zeiss Meditec AG, Jena, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/00 (2006.01); A61F 9/007 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
A61B 18/00 (2013.01); A61F 9/00745 (2013.01); A61B 2017/0015 (2013.01); A61B 2017/00146 (2013.01);
Abstract
An ophthalmic surgical control apparatus is configured to be connectable to a piezo handpiece for emulsifying an eye lens. The control apparatus includes a frequency generator having a first and a second frequency module. The first frequency module generates a first oscillation signal having a first frequency lower than the ultrasonic resonant frequency of the piezo handpiece. The second frequency module generates a second oscillation signal having a second frequency greater than the ultrasonic resonant frequency of the piezo handpiece. A frequency generator control module controls the first and the second frequency modules.