US 9,808,306 B2
Fume evacuating electrosurgical scalpel
Carl Balog, Portland, OR (US)
Filed by Carl Balog, Portland, OR (US)
Filed on Jun. 18, 2014, as Appl. No. 14/308,552.
Application 14/308,552 is a continuation in part of application No. 13/587,859, filed on Aug. 16, 2012, granted, now 8,784,416.
Application 13/587,859 is a continuation of application No. 12/315,973, filed on Dec. 9, 2008, granted, now 8,287,534.
Prior Publication US 2014/0303449 A1, Oct. 9, 2014
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 90/30 (2016.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01)
CPC A61B 18/1402 (2013.01) [A61B 90/30 (2016.02); A61B 2018/00607 (2013.01); A61B 2018/00922 (2013.01); A61B 2018/00928 (2013.01); A61B 2018/00946 (2013.01); A61B 2018/00958 (2013.01); A61B 2018/128 (2013.01); A61B 2018/1412 (2013.01); A61B 2090/306 (2016.02); A61B 2218/008 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electrosurgical instrument for selectively providing electrical energy to an electrode blade for cutting and coagulation, comprising:
an elongate housing;
a reduced neck portion at a first end of the housing, the neck portion being configured to retain an electrode blade extending outwardly therefrom, and the neck portion further including a tubular pathway to which a vacuum is applied to draw away fumes;
a light source disposed within an interior of the housing;
a light power source encapsulated within the interior of the housing;
plural user-selectable switches disposed at least in part at an exterior of the housing, wherein:
a first switch of the plural switches is configured, when actuated, to establish an electrically-conductive pathway between a retained electrode blade and an external electrosurgical signal generator, and
a second switch of the plural switches is coupled in electrical communication with each of the light source and the light power source, wherein the second switch is configured, when actuated, to establish an electrically-conductive pathway between the light power source and the light source;
a circuit board disposed within the housing and directly underlying at least one of the plural user-selectable switches, the circuit board further constituting a portion of the electrically-conductive pathway between the electrode blade and the external electrosurgical signal generator;
a conductor including:
a first end disposed within the housing and being coupled in electrical communication with the circuit board; and
a second end extending outwardly from the housing and being configured for electrically coupling with the external electrosurgical signal generator;
wherein either or both of the cutting signal and the coagulating signal comprises one of a radio frequency signal or a high-frequency electrical signal; and
an electrode slide control lever, wherein the slide control is configured to:
allow extension of the tubular pathway and maintain an electrically-conductive pathway between the electrode blade and an external electrosurgical signal generator.