04307720 is referenced by 107 patents and cites 11 patents.

An improved electrocautery instrument includes a manually retractable-extendable electrode-blade with a vacuum channel disposed therebeneath. A guide in close-spaced relationship to the electrode-blade at the end of the instrument facilitates the scraping off and cleaning of the blade-electrode as it is retracted out of the way to configure the instrument for use as an uncluttered vacuum wand.

Title
Electrocautery apparatus and method and means for cleaning the same
Application Number
6/61020
Publication Number
4307720
Application Date
July 26, 1979
Publication Date
December 29, 1981
Inventor
Jaroy Weber Jr
2630 Bear Gulch Rd., Woodside, 94062
CA, US
Agent
A C Smith
IPC
A61M 1/00
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