Patent ID: 8057503

Claim:
A vessel occluder, comprising: a catheter body defining a first internal passage; a dilator closely received within said first internal passage; a braided cage secured to said catheter body about a secured end and extending to a distal end to define a second internal passage extending between said ends; said braided cage being movable between an expanded state and a collapsed state; said dilator extending through said second internal passage; a slip ring secured to said distal end of said cage and closely encircling an insertion end portion of said dilator; a flexible membrane attached to only a central portion of said braided cage and spaced from said ends of said cage; said dilator including a raised annular shoulder disposed at said insertion end portion and configured to seat against said slip ring; an actuator knob linked to said dilator; whereupon, said actuator knob is used to push said dilator through said catheter body such that said annular shoulder engages said slip ring to stretch said braided cage and said membrane to said collapsed state for insertion into a principal vessel and whereupon said actuator knob is used to release said cage to said expanded position to occlude with said membrane tributary vessels which would otherwise allow fluid to flow into said principal vessel and while still allowing fluid to flow through said braided cage at said ends through said principal vessel.