Double loop lasso with single puller wire for bi-directional actuation
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United States of America Patent
Stats
-
Mar 20, 2018
Grant Date -
Aug 25, 2016
app pub date -
May 2, 2016
filing date -
Dec 31, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A catheter has a distal assembly with at least one loop, if not two, with ring electrodes. The distal assembly has an elongated support member covered by an extruded form having two lumens, one sized for nonslip tight fit with the support member. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a U-shape bend therebetween. The U-shape bend is anchored at a distal end of a deflectable section which is reinforced by at least one washer having at least two holes, each hole axially aligned with a respective lumen in the deflectable section. Each hole is centered with a lumen so that each puller wire portion therethrough is straight and subjected to tensile force only. A proximal end of the support member is flattened and serrated to provide a better bonding to the distal end of the deflectable section.
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