Catheter with electrode spine assembly having preformed configurations for improved tissue contact
AssigneeBiosense Webster (Israel) Ltd.
InventorsMario A. Solis, Shubhayu Basu, Stuart Williams, Cesar Fuentes-Ortega
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Abstract
An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. One or more spines have preformed configurations including at least a first portion with a first curvature and a second portion with a second curvature, and may include a linear portion. The linear portion may be between the first and second portions. The linear portion may be distal of the first and second portions. One or more spines have a narrower portion so that different portions of the spine can have different flexibility with a degree of independence in flexibility from adjacent portions.
Claims20
An electrophysiology catheter comprising:
- an elongated body;
- a distal electrode assembly comprising:
- a support structure having a proximal stem;
- a spine extending from the proximal stem, the spine having a free distal end with a distal portion with a through-hole;
- a nonconductive spine cover surrounding the spine;
- a plurality of microelectrodes on the spine;
- and
- an adhesive cover on the free distal end and distal portion, the adhesive cover including a bridging portion that passes through the through-hole, and an exposed outer surface.
An electrophysiology catheter comprising:
- an elongated body;
- a distal electrode assembly comprising:
- a support structure having a proximal stem;
- a plurality of spines extending from the proximal stem, each spine having a free distal end with an enlarged distal portion with a through-hole;
- a plurality of nonconductive spine covers, each cover surrounding a respective spine;
- multiple microelectrodes on each spine;
- and
- a plurality of bulbous covers, each bulbous cover on a respective enlarged distal portion and including a bridging portion that passes through the through-hole of the respective enlarged distal portion, and an exposed outer surface.
Dependencies are inferred from the claim text.