Patent ID: 8777978

Claim:
An assembly for deploying an implant into an aneurysm in a vessel, comprising: a distal region of a tubular member having a longitudinal axis, a circumferential wall defining only one lumen along the axis, the lumen having a lumen cross-sectional dimension, and the distal region having only one aperture from the lumen, the aperture being disposed in a distal portion and having an inner cross-sectional dimension less than the lumen cross-sectional dimension, and a distal end; a coil implant having an enlarged proximal end disposed within the lumen of the distal region, wherein at least a portion of the coil implant extends through the aperture; a core wire extending within the lumen and contacting (a) the circumferential wall and (b) the enlarged end at a point proximal to the distal portion; and wherein a length of a line segment extending from an outer surface of the enlarged end, through the point, and to an outer surface of the core wire is greater than the inner cross-sectional dimension, such that the enlarged end is prevented from moving within the lumen distally entirely past the distal end when the core wire and enlarged end are positioned radially adjacent each other within the lumen; and wherein, when the enlarged end is disposed within the lumen, the core wire extends distally beyond a distal end of the enlarged end to the tubular member distal portion.