Electrode assembly having an atraumatic distal tip

摘要

A catheter including expandable electrode assembly having a distal cap that mechanically engages a locking feature provided on the distal ends of each of two or more flexible splines forming a portion of the expandable electrode assembly is described. The distal cap defines an atraumatic distal tip of the catheter. The catheter may be used in a cardiac mapping and/or ablation procedure.

主权项

1. A catheter comprising:
an elongate catheter body extending from a proximal end to a distal end; an expandable electrode assembly disposed at the distal end of the catheter body, the electrode assembly comprising a plurality of flexible splines extending from the distal end of the catheter body to a distal cap; wherein the distal cap comprises a plurality of slots disposed about an outer circumference of the distal cap, and a cylindrical shape defining an interior cavity; wherein the plurality of flexible splines include a first spline comprising a distal end defining a locking feature secured within one of the plurality of slots provided in the distal cap, the locking feature comprising an aperture formed therein, the expandable electrode assembly configured to be transitioned between a collapsed configuration suitable for delivery and an expanded configuration; and two or more electrodes located on the first spline; and an adhesive disposed within the distal cap to further secure the locking feature.