Multiple-lumen sheath for a resectoscope
First Claim
1. A multiple-lumen sheath which fits over a resectoscope and provides an eletrosurgical resection energy (radio frequency) return path and at least one irrigant channel, comprising,a sheath body, which fits over said resectoscope, comprisingan outer lumen, wherein said outer lumen carries irrigant flowing outward from an area of resection;
- an intermediate lumen, wherein said intermediate lumen carries a conductor for said electrosurgical resection energy; and
an inner lumen, wherein said inner lumen carries irrigant flowing inward toward said area of resection.
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Abstract
A multiple-lumen sheath which fits over a resectoscope and provides an electrosurgical resection energy (radio frequency) return path and at least one irrigant channel, comprising, a sheath body which fits over the resectoscope; a conductor disposed within the sheath body for carrying the electrosurgical resection energy; and an irrigant channel within the sheath body and outside of the conductor, for both carrying irrigant fluid and cooling the conductor.
48 Citations
7 Claims
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1. A multiple-lumen sheath which fits over a resectoscope and provides an eletrosurgical resection energy (radio frequency) return path and at least one irrigant channel, comprising,
a sheath body, which fits over said resectoscope, comprising an outer lumen, wherein said outer lumen carries irrigant flowing outward from an area of resection; -
an intermediate lumen, wherein said intermediate lumen carries a conductor for said electrosurgical resection energy; and an inner lumen, wherein said inner lumen carries irrigant flowing inward toward said area of resection. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A multiple-lumen sheath which fits over a resectoscope and provides an eletrosurgical resection energy (radio frequency) return path and at least one irrigant channel, comprising,
a sheath body, which fits over said resectoscope, wherein said sheath body comprises three concentric lumens about a hollow center adapted to receive said resectoscope therein, comprising, an outer lumen, wherein said outer lumen carries irrigant flowing outward from an area of resection; -
an intermediate lumen, wherein said intermediate lumen carries a conductor for said electrosurgical resection energy, and wherein said conductor is a coaxial cable capable of carrying said electrosurgical resection energy to and from said resection area; and an inner lumen, wherein said inner lumen carries irrigant flowing inward toward said resection area.
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Specification