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:
Jun. 23, 1992
Filed:
Sep. 13, 1989
Gerhard Muller, Berlin, DE;
Norbert Muller-Stolzenburg, Berlin, DE;
Carl-Zeiss-Stiftung, Heidenheim, DE;
Abstract
Surgical procedures on biological tissue are carried out with the aid of a laser with substances being applied to the tissue before or during the treatment and these substances are absorbent in the range of the wavelength of the laser beam. A surgical manipulator can be provided and equipped with suction and irrigation channels and the substances can be directed to one of these channels via a metering unit. The application of substances such as sulfisomidine or sulfacetamide increases the ablation rate and reduces the threshold of the ablation process. At the same time, sensitive structures are protected from the damaging effects of the laser radiation as well as from the stray radiation and fluorescence radiation triggered by the laser radiation during the application of microsurgery to the eye.