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. 24, 1992
Filed:
Mar. 16, 1990
Richard P Fleenor, Denver, CO (US);
Beacon Laboratories, Inc., Broomfield, CO (US);
Abstract
A novel dual mode electrosurgical pencil is provided for conventional tissue cutting/coagulation use in a first mode of operation, and gas-enhanced coagulation by fulguration in a second mode of operation. The electrode and nozzle of the pencil are provided in a manner that permits relative positioning thereof, wherein the electrode extends sufficiently beyond the nozzle in the first mode for direct tissue contact, and is sufficiently nested within the nozzle in the second mode to accommodate laminar gas stream flow for effective gas-enhanced fulguration. In a preferred embodiment, a spring is utilized to maintain the nozzle in a retracted positiion during first mode use, and the pressure of an inert gas supply is utilized to move the nozzle from a retracted first mode position to a protracted second mode position. First and second mode control switches are provided on the gripping portion of the novel pencil in the preferred embodiment.