Patent ID: 7041098

Claim:
An apparatus for ligating a hollow anatomical structure, comprising: a catheter having a sheath, a working end, and an opening are located at the working end of the catheter; an inner member disposed within the sheath such that the inner member and the sheath are capable of being moved relative to one another; a plurality of leads, each lead having a distal end, the plurality of leads being coupled with the inner member such that the distal ends of the plurality of leads become extended out of the opening at the working end of the catheter when the inner member is moved relative to the sheath, each lead being formed to move the distal end away from a longitudinal axis defined by the sheath when the plurality of leads are extended out the opening, the distal end of each lead being capable of delivering energy to the anatomical structure; a flexible impermeable cover spanning the area between the leads, along the circumference of the catheter when the leads are extended out the opening, such that the cover blocks fluid flow within the hollow anatomical structure.