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:
May. 17, 1994
Filed:
Jul. 10, 1991
Applicant:
Inventors:
David W Newton, Boulder, CO (US);
Roger C Odell, Louisville, CO (US);
Don R Boyle, Boulder, CO (US);
Assignee:
Electroscope, Inc., Boulder, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606 46 ; 606 35 ; 606 42 ;
Abstract
A safety shield for use in laparoscopic or like electrosurgical procedures where the shield surrounds the active electrode and extends from a trocar or the like to the field of view of the surgical procedure. The shield is connected to the return lead via a low impedance path which includes monitor circuitry for determining whether the shield current is associated with an abnormal condition.