A detachment system comprising: a heating fuse element having a predetermined resistivity; the heating fuse element having a first terminating end and an opposite second terminating end; the heating fuse element being made of a material that melts or severs when an applied current exceeds a predetermined maximum current threshold; an electrically conductive corewire having a proximal end and an opposite distal end; the electrically conductive corewire being electrically connected proximate its distal end directly to the first terminating end of the heating fuse element at a first electrical connection joint; and an insulated electrically conductive wire separate from the electrically conductive corewire; the insulated electrically conductive wire having a proximal end and an opposite distal end; the distal end of the insulated electrically conductive wire being electrically connected directly to the second terminating end of the heating fuse element at a second electrical connection joint; an inner insulation sleeve made from an electrical non-conductive material; the inner insulation sleeve is disposed over a distal section of the corewire and covers the first electrical connection joint; the inner insulation sleeve is disposed between the insulated electrically conductive wire and the electrically conductive corewire; and an outer insulation sleeve made from an electrical non-conductive material; the outer insulation sleeve is disposed over a distal section of an assembly including the insulated electrically conductive wire, the inner insulation sleeve and the electrically conductive corewire; the outer insulation sleeve covers the second electrical connection joint, characterised in that the electrically conductive corewire is tapered over its distal section. a heating fuse element having a predetermined resistivity; the heating fuse element having a first terminating end and an opposite second terminating end; the heating fuse element being made of a material that melts or severs when an applied current exceeds a predetermined maximum current threshold; an electrically conductive corewire having a proximal end and an opposite distal end; the electrically conductive corewire being electrically connected proximate its distal end directly to the first terminating end of the heating fuse element at a first electrical connection joint; and an insulated electrically conductive wire separate from the electrically conductive corewire; the insulated electrically conductive wire having a proximal end and an opposite distal end; the distal end of the insulated electrically conductive wire being electrically connected directly to the second terminating end of the heating fuse element at a second electrical connection joint; an inner insulation sleeve made from an electrical non-conductive material; the inner insulation sleeve is disposed over a distal section of the corewire and covers the first electrical connection joint; the inner insulation sleeve is disposed between the insulated electrically conductive wire and the electrically conductive corewire; and an outer insulation sleeve made from an electrical non-conductive material; the outer insulation sleeve is disposed over a distal section of an assembly including the insulated electrically conductive wire, the inner insulation sleeve and the electrically conductive corewire; the outer insulation sleeve covers the second electrical connection joint, characterised in that the electrically conductive corewire is tapered over its distal section.