A delivery member (10a, 10b) for delivering an implantable medical device to a target location of a body vessel, the delivery member comprising: a proximal hypotube; a flexible coil (200a, 200b) extending from a distal end of the proximal hypotube; a compressible distal hypotube extending from a distal end of the flexible coil (200a, 200b); a lumen extending from a proximal end of the proximal hypotube, through the proximal hypotube, through the flexible coil (200a, 200b), through the compressible distal hypotube, and to a distal end of the compressible distal hypotube; a sleeve extending along a majority of the flexible coil (200a, 200b), wherein the sleeve is effective to inhibit radial expansion of the flexible coil (200a, 200b); and a loop wire (400a, 400b) comprising a first end affixed to the proximal hypotube and comprising a loop opening positioned approximate a distal end of the compressible distal hypotube, wherein the loop wire (400a, 400b) is effective to inhibit longitudinal elongation of the flexible coil (200a, 200b); the delivery member further comprising: a pull wire extending through the lumen, wherein the loop wire (400a, 400b) and the pull wire are positioned to secure the implantable medical device to the delivery system, and wherein the loop wire (400a, 400b) and the pull wire are movable to release the implantable medical device from the delivery system, wherein the loop wire (400a, 400b) is stretch resistant, and wherein the loop wire (400a, 400b) is under tension when the implantable medical device is secured to the delivery system. a proximal hypotube; a flexible coil (200a, 200b) extending from a distal end of the proximal hypotube; a compressible distal hypotube extending from a distal end of the flexible coil (200a, 200b); a lumen extending from a proximal end of the proximal hypotube, through the proximal hypotube, through the flexible coil (200a, 200b), through the compressible distal hypotube, and to a distal end of the compressible distal hypotube; a sleeve extending along a majority of the flexible coil (200a, 200b), wherein the sleeve is effective to inhibit radial expansion of the flexible coil (200a, 200b); and a loop wire (400a, 400b) comprising a first end affixed to the proximal hypotube and comprising a loop opening positioned approximate a distal end of the compressible distal hypotube, wherein the loop wire (400a, 400b) is effective to inhibit longitudinal elongation of the flexible coil (200a, 200b); the delivery member further comprising: a pull wire extending through the lumen, wherein the loop wire (400a, 400b) and the pull wire are positioned to secure the implantable medical device to the delivery system, and wherein the loop wire (400a, 400b) and the pull wire are movable to release the implantable medical device from the delivery system, wherein the loop wire (400a, 400b) is stretch resistant, and wherein the loop wire (400a, 400b) is under tension when the implantable medical device is secured to the delivery system. a pull wire extending through the lumen, wherein the loop wire (400a, 400b) and the pull wire are positioned to secure the implantable medical device to the delivery system, and wherein the loop wire (400a, 400b) and the pull wire are movable to release the implantable medical device from the delivery system, wherein the loop wire (400a, 400b) is stretch resistant, and wherein the loop wire (400a, 400b) is under tension when the implantable medical device is secured to the delivery system.