Patent ID: 8701670

Claim:
A catheter delivery system comprising: a delivery catheter; an occlusion device comprising: an expandable member restrained within the delivery catheter; and an extended arm directly connected to the expandable member and extending distally therefrom outside of the delivery catheter; and a distal ball tip on a distal end of the extended arm, wherein the extended arm is both bent and tapered toward the distal end of the extended arm between a location where the extended arm is directly connected to the expandable member and the distal ball tip; wherein the distal ball tip and at least a portion of the extended arm remain outside of the delivery catheter such that the extended arm and distal ball tip can function to steer the catheter delivery system when tracking through a body lumen, and the catheter delivery system can be turned in vivo to match a curvature of the bent extended arm to a curvature of a body lumen when tracking the catheter delivery system though the body lumen.