A delivery device for proximally releasing an expandable prosthesis and method of use thereof are described. The delivery device comprises an introducer sheath that is capable of distally advancing relative to the endoprosthesis to thereby expose the endoprosthesis from a proximal end thereof. The device is also capable of resheathing over the prosthesis in a proximal direction. The device comprises a drive pulley that can engage a particular gear set to axially move the introducer sheath and proximally release the prosthesis. The drive pulley can also engage another gear set to resheath the introducer sheath and recapture the prosthesis between the inner catheter and the introducer sheath. A directional switch enables the device to operate between the two modes.
