Patent ID: 6551340
Filing Date: 2003-04-22
Classification: A61B

Abstract:
A vasoocclusion device (10) for establishing an embolus or vascular occlusion in a vessel of a human or veterinary patient, the device (10) comprising:a floppy helical coil (12) having a proximal coil end (16), a distal coil end (18) spaced from the proximal coil end (16) and a coil lumen (20) defined therein extending between the proximal coil end (16) and the distal coil end (18); a core (22) disposed in at least part of the coil lumen (20), the core (22) having a proximal core end (24) and a distal core end (26); and one portion of the core (22) affixed to the helical coil (12) at a selected location, and the core extends from the selected location to a free end that remains unaffixed to the coil, wherein the core (22) provides the helical coil (12) with an anchoring force in the vessel (42), and the core (22) provides the helical coil (12) with a secondary nonlinear shape when unstressed in the vessel (42), wherein the secondary nonlinear shape of said helical coil (12) is predetermined by the core (22).