Patent ID: 6475227
Filing Date: 2002-11-05
Classification: A61B

Abstract:
A coil-delivery device for delivery to a vascular target site via an inner-lumen catheter, an elongate, flexible vaso-occlusion coil having an end-region inner lumen, said device comprising:an elongate sleeve having proximal and distal ends and an inner lumen extending therebetween, a wire slidably movable within said sleeve, said wire having a distal end region extending beyond the distal end of the sleeve, and a proximal end region that can be manipulated to move the wire between extended and retracted positions with respect to the sleeve's distal end, and a flexible engaging structure having a proximal end attached to the sleeve's distal end and a distal end attached to the wire distal to the sleeve's distal end, such that movement of the wire between its extended and retracted positions is effective to move the flexible engaging structure between extended and radially expanded conditions, respectively, in which the engaging structure is adapted to be received within and compressionally engage the lumen end region of the coil, respectively, wherein said elongate sleeve has an outer diameter at the distal end such that the elongate sleeve abuts an end of the coil when the engaging structure is received within the lumen end region of the coil.