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:
Mar. 06, 2001
Filed:
Jul. 09, 1999
Applicant:
Inventors:
Günter Farin, Tübingen, DE;
Karl Ernst Grund, Tübingen, DE;
Assignee:
Erbe Elektromedizin GmbH, , DE;
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/818 ;
U.S. Cl.
CPC ...
A61B 1/818 ;
Abstract
Electrosurgical instruments for the coagulation of biological tissue are known that comprise a gas source to supply an inert gas, in particular a noble gas, to at least one outflow opening as well as an HF source to supply a coagulation current to an electrode device that is disposed in the region of the at least one outflow opening. It is proposed to make the outflow opening slit-shaped in such a way that the inert gas emerges in a flat or fan-shaped stream, which in its marginal regions flows laminarly so that the inert gas reaches the tissue substantially without becoming mixed with ambient air.