Surgery – Truss – Pad
Patent
1974-08-28
1976-10-26
Michell, Robert W.
Surgery
Truss
Pad
12830317, A61B 1732, A61N 306
Patent
active
039877957
ABSTRACT:
An electrosurgical device connected to an electrical generator having active and return output terminals, the device being used to cut, coagulate, or otherwise treat human tissue or the like, the device comprising: an electrode support; an active electrode responsive to the active output terminal and a return electrode responsive to the return output terminal, the electrodes being supported by the electrode support, both the electrodes being adapted for electrical connection to the tissue, the ratio of the return electrode area adapted to electrically connect to the tissue to the active electrode area adapted to ohmically or arc-wise connect to the tissue being in the range of approximately 2 to 200. Arrangements are also provided for separating the active electrode from the tissue when the device is placed in contact with the tissue to insure that a current arc is established between the active electrode and the tissue. Various electrode configurations are also disclosed.
REFERENCES:
patent: 452220 (1891-05-01), Gunning
patent: 1814791 (1931-07-01), Ende
patent: 1916722 (1933-07-01), Ende
patent: 1983669 (1934-11-01), Kimble
patent: 2275167 (1942-03-01), Bierman
patent: 3858586 (1975-01-01), Lessen
patent: 3920021 (1975-11-01), Hildebrandt
Baker Joseph J.
Cohen Lee S.
Ferguson Jr. Gerald J.
Michell Robert W.
Valleylab Inc.
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