A medical device deployment system includes an inner shaft telescopically received within a retractable sheath and a medical device positioned over the inner shaft. A handle assembly includes a proximal handle portion having a handle body having an elongate slot therethrough. A distal end of the handle body is attached to an open proximal end of the retractable sheath. The handle assembly also includes a distal handle portion attached to a proximal end of the inner shaft through a connection portion. In a pre-deployment configuration, the connection portion is positioned through a proximal end of the elongate slot and the retractable sheath restricts radial expansion of the medical device. In a post-deployment configuration, the connection portion is positioned through a distal end of the elongate slot and the retractable sheath is retracted such that the medical device is not restricted from radial expansion by the retractable sheath.
