Surgery – Instruments – Electrical application
Patent
1996-08-23
1998-05-12
Peffley, Michael
Surgery
Instruments
Electrical application
606 46, 606 41, A61B 1739
Patent
active
057498709
ABSTRACT:
A surgical instrument electrode having a tissue cutting edge disposed along a front portion and a gap having a depth extending along an axis passing through the front portion and a rear portion wherein the depth terminates in a region between the front portion and the rear portion. With such an arrangement, relatively deep gaps may be formed in the electrode without requiring a corresponding increase in the bluntness of the tissue cutting edge. In addition, the electrode has a cross-sectional shape substantially continuously changing along a portion of the electrode from a substantially circular cross-section at a distal end to a substantially rectangular cross-section along the tissue cutting edge. Due to the continuous nature of the change, undesirable electrical arcing due to the shape change is substantially reduced, and is in effect removed.
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Circon/ACMI Resectoscope Brochure, VaporTome The resection electrode.
Circon/ACMI Resectoscope brochure, VaporTome.TM. THE Resection Electrode (1 page).
ProSurg Inc. Resectoscope brochure, RollerLoop.TM. Tissue Effect (1 page).
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Dann Jeffrey A.
Gloth David
NEBL, Inc.
Peffley Michael
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