Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation
April 8, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3649805 3838242 3903891 Plasma arc scalpel Electrosurgical method and apparatus for initiating an electrical discharge in an inert gas flow Electrosurgical method and apparatus for establishing an electrical discharge in an inert gas flow Multiple source electrosurgical generator Tissue coagulation apparatus and method Electrosurgical apparatus Electrosurgical generator InventorsApplicationNo. 06/849950 filed on 04/08/1986US Classes:606/40, Coagulation219/121.5, Nozzle system219/121.51Gas supply systemExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmInternational ClassesA61B 18/12 (20060101)A61B 18/00 (20060101) A61B 18/14 (20060101) AbstractAn electrosurgical technique of achieving coagulation involves conducting a predetermined ionizable gas in a jet to the tissue at a predetermined flow rate sufficient to clear natural fluids from the tissue and to substantially expose the tissue stroma. Electrical radio frequency energy is conducted to the tissue in ionized conductive pathways in the gas jet. To achieve fulguration, the electrical energy is conducted as arcs in the ionized conductive pathways. To achieve a non-contact type of electrosurgical desiccation, the electrical energy is conducted as a non-arcing diffuse current in the ionized conductive pathways.Other References
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