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US 2014/0276778 A1Published application
Flexible mesh ablation device
OwnerTyler Evans McLawhorn, Vihar C. Surtiinventors
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Abstract
A flexible mesh ablation device for ablating tissue in a body lumen. The flexible mesh ablation device includes a flexible mesh with at least one conductor on an exterior surface of the flexible mesh. When the flexible mesh is compressed axially it expands radially to contact the inner surface of the body lumen and conform to the shape of the body lumen. Power is applied to the conductor ablating tissue proximate the conductor.
Claims19
A medical device comprising:
- a first longitudinal member having a distal end and a proximal end;
- a mesh having a distal mesh end and a proximal mesh end, the mesh comprising a non-conductive flexible filament woven to form a hollow cylindrical mesh with a longitudinal bore, the proximal mesh end being secured to the distal end of the first longitudinal member;
- a conductive coating on an outer surface of the cylindrical mesh surface;
- and
- a compression mechanism adapted to move the distal mesh end between a first position in which the mesh is unexpanded and a second position in which the distal mesh end and the proximal mesh end are near one another thereby expanding the mesh into an expanded state.
2 more elements
A medical device comprising:
- a catheter having a distal end and a first outer diameter at the distal end;
- a mesh having a distal mesh end and a proximal mesh end, the mesh being biased to have a second outside diameter greater than the first outside diameter, the mesh comprising a non-conductive flexible filament woven to form a hollow mesh with a longitudinal bore, the proximal mesh end being secured to the distal end of the catheter;
- a conductive coating disposed on an outer surface of the mesh;
- and
- a sleeve disposed about the distal end of the catheter, the sleeve having an inside surface having an inside diameter greater than the first outside diameter and less than the second outside diameter, the sleeve being slidable from a first position in which the inside surface constrains the mesh to have a third outer diameter less than the second outer diameter and a second position in which the inside surface does not constrain the mesh.
2 more elements
Dependencies are inferred from the claim text.