Surgery – Instruments – Electrical application
Patent
1998-01-30
1999-12-07
Dvorak, Linda C. M.
Surgery
Instruments
Electrical application
606 42, 606 48, 606 50, A61B 1736
Patent
active
059975334
ABSTRACT:
An electrosurgical instrument includes a housing and a first connector in the housing for receiving electrical energy. A shaft assembly is movably connected to the housing. The shaft assembly also includes at least one electrode at a distal end of the shaft assembly as well as at least one conductive portion for passing the electrical energy to the electrode. A spring is positioned between the shaft assembly and the housing for biasing the shaft assembly a distance away from the first connector. The distance defines a pre-determined gap between the first connector and the shaft assembly. The shaft assembly is proximally movable in the housing upon an application of force at the shaft assembly distal end for compressing the spring such that the conductive portion traverses the predetermined gap such that electrical energy is passed from the first connector to the electrode through the conductive portion.
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Rondinone J., Brassell J., Miller III S., Thorne J., Rondinone D., Safabash J., Vega F. (1998) A New Electrosurgical Ball Electrode with NOn-Stick Properties. SPIE vol. 3249 142-146.
Capezzuto Louis J.
Dvorak Linda C. M.
Ethicon Endo-Surgery Inc.
Ruddy David M.
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