Magnetically guided catheters
First Claim
Patent Images
1. An electrode assembly for a catheter, comprising:
- a tip electrode having a distal end portion and proximal end portion; and
a multi-segment tip positioning magnet body having a substantially continuous outer surface and comprising a plurality of axially-extending circumferential disposed proximate said tip electrode, a circumferential extent of each segment being less than 360 degrees and being such that when said plurality of segments are assembled, said plurality of segments extend through approximately 360 degrees.
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Abstract
A magnetically-guided catheter includes a tip positioning magnet in the distal electrode assembly configured to interact with externally applied magnetic fields for magnetically-guided movement. A magnetically-guided mapping catheter includes an electrically-conductive capsule in the form of a casing that includes a distal ablation surface and isolates the positioning magnet from bio-fluids to prevent corrosion. An open irrigation ablation catheter includes an isolated manifold that isolates the positioning magnet from contact with irrigation fluid to prevent corrosion.
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Citations
15 Claims
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1. An electrode assembly for a catheter, comprising:
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a tip electrode having a distal end portion and proximal end portion; and a multi-segment tip positioning magnet body having a substantially continuous outer surface and comprising a plurality of axially-extending circumferential disposed proximate said tip electrode, a circumferential extent of each segment being less than 360 degrees and being such that when said plurality of segments are assembled, said plurality of segments extend through approximately 360 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification