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:
Sep. 11, 1990
Filed:
Jun. 02, 1988
Applicant:
Inventors:
Benedetto Grossi, Stamford, CT (US);
Raymond Ainger, III, Stamford, CT (US);
Richard P Muller, Bronx, NY (US);
Assignee:
Circon Corporation, Santa Barbara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606 46 ;
Abstract
A system for reducing drag in a resectoscope working element. A hole is provided at a proximal end of a substantially enclosed electrode sheath for exiting fluids and substantially preventing pressure from being generated in the sheath. A working element has a guide block with a guide bar channel having a first cross-sectional shape and a guide bar with a second cross-sectional shape such that there are spaces between the guide bar and the guide bar channel and the bearing surfaces therebetween are relatively small.