| 摘要 |
An electrosurgical system includes; a feedline (15) including an inner conductor (220), an outer conductor (224) and a dielectric material (222); a probe (100) operably coupled to the electrosurgical energy source (28) by the feedline (15),
the probe (100) including:
an antenna assembly (12) defining a feed gap ("G") between a balun structure ("B") and a distal radiating portion ("R");
and a flexible, extendable/retractable fluid-cooled shaft (410) coupled in fluid communication with an interior lumen (338) defined by the probe (100), includes:
an inlet sleeve (431);
an outlet sleeve (435);
an inner tubular member (441) coaxially disposed about and slideably coupled to the inlet sleeve (431); and
an outer tubular member (445) coaxially disposed about and slideably coupled to the outer sleeve (435), so that the extendable/retractable fluid-cooled shaft (410) is selectively adjustable relative to the feedline (15) between a first length (L5), and a second length (L6). |
