CENTERING BRACHYTHERAPY CATHETER

摘要

An apparatus for radially centering a treatment region of a brachytherapy catheter in a lumen of a body vessel. The centering apparatus includes a monofilament wire-form that is pre-shaped to have an expanded configuration having multiple lobes arranged in a radially symmetrical staggered sequence along the treatment region of the catheter. The centering apparatus also has a collapsed configuration that is formable about the catheter by drawing apart the ends of the wire-form.