A low profile stepped delivery system for retracting trigger wires from a prosthesis to release the prosthesis from a delivery device. A rod (218) is disposed within an axial bore of a handle (200). The rod (218) has a first longitudinal surface and a second longitudinal surface. A first engagement mechanism (232) is disposed on the first longitudinal surface and a second engagement mechanism (234) disposed on the second longitudinal surface. A wire coiling assembly (220) is disposed at an end of the of the handle (200) and comprises a first rotary gear (236) that is adapted to be rotated by the first engagement mechanism (232), a second rotary gear (238) that is adapted to be rotated by the second engagement mechanism (234), a first wire spool (244) that is coupled to a rotation of the first rotary gear (236), and a second wire spool (246) that is coupled to the rotation of second rotary gear (238). The first wire spool (244) is configured to secure a first trigger wire and the second wire spool (246) is configured to secure a second trigger wire.
