Patent ID: 8211141

Claim:
A vasoocclusive embolic device for use in placement at a treatment site within a vessel, comprising: an embolic coil having proximal and distal ends and a lumen extending therethrough; an elongated stretch resistant fiber having proximal and distal ends, said distal end of said stretch resistant fiber being bonded to the distal end of the embolic coil and extending through the lumen of the embolic coil to a point proximal of the proximal end of the coil; a generally cylindrical stabilization bead having an outer diameter slightly smaller than a diameter of the lumen of the embolic coil and being mounted on the stretch resistant fiber at a location in proximity to the proximal end of the embolic coil to maintain an alignment of the coil about the stretch resistant fiber; and, a headpiece mounted on the proximal end of the stretch resistant fiber which serves to couple the embolic coil to a delivery system.