Vaporizing roller for an electrosurgical probe
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United States of America Patent
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Jun 2, 1998
Grant Date -
N/A
app pub date -
May 29, 1997
filing date -
Nov 5, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A roller (20) for an electrocautery probe or electrode (30), such as of the type used with a resectoscope. The roller (20) generally has a conductive body with an axis of rotation (26) and a surface with a circular cross-section in a plane perpendicular to the axis of rotation (26). The roller (20) further includes surface features (22) for generating circular-shaped areas of focused current concentration (24) in a radial direction relative to the axis of rotation (26) of the roller (20). For this purpose, recesses can be formed in the surface of the roller (20), with each recess defining a circular-shaped edge at the roller surface. Examples of suitable recesses include cylindrically-shaped perforations and concave impressions in the surface of the roller (20).
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