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US 2017/0319267 A1Published application
Ablation instruments with a member having a triangular cross-section
AssigneeCovidien LP
InventorsWILLIAM J. DICKHANS, ERIC W. LARSON
Life of this patent
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Abstract
An ablation needle assembly includes an outer member, an inner member, and a feedline. The outer member defines a first lumen that receives the inner member therein. The inner member defines a second lumen that receives the feedline therein. The first and second lumens cooperate to circulate fluid about the feedline. Either the inner or outer member has a triangular cross-section.
Claims17
An ablation needle assembly comprising:
- an outer member defining a first lumen;
- an inner member disposed within the first lumen and defining a second lumen;
- and
- a feedline disposed within the second lumen, wherein the first lumen and the second lumen cooperate to circulate fluid about the feedline,
- wherein one of the outer member or inner member has a triangular cross-section.
2 more elements
An ablation instrument comprising:
- a needle assembly including:
- an outer member defining a first lumen;
- an inner member disposed within the first lumen and defining a second lumen;
- and
- a feedline disposed within the second lumen;
- a cable assembly having a connector at a first end, the cable assembly including a first conductor;
- a housing coupled to a second end of the cable assembly, the housing electrically coupling the first conductor to the feedline, the housing fluidly coupling an inflow tube with a proximal end of the second lumen and an outflow tube with a proximal end of the first lumen.
4 more elements
Dependencies are inferred from the claim text.