Deployment handle for a prosthesis delivery device

A prosthesis delivery device having a proximal end and distal end, the prosthesis delivery device comprising:

• a handle assembly at a distal end of the delivery device, the handle assembly comprising:
• a main handle having a proximal end and a distal end;
• a prosthesis release actuation mechanism disposed at least partially on the main handle and moveable relative to the main handle;
• a motion translating mechanism disposed distal to and operatively connected to the prosthesis release actuation mechanism;
• a prosthesis retention mechanism disposed at the proximal end of the delivery device and proximal to a prosthesis retention region and operatively connected to the motion translating mechanism, the prosthesis retention mechanism having a prosthesis capture condition and a prosthesis release condition;
• wherein movement of the prosthesis release actuation mechanism causes movement of the motion translating mechanism thereby moving the prosthesis retention mechanism from the prosthesis capture condition to the prosthesis release condition;
• wherein the prosthesis release actuation mechanism is circumferentially disposed about the main handle and rotationally moveable relative to the main handle;
• wherein rotation of the prosthesis release actuation mechanism in a first direction effects rotation of the motion translating mechanism in a second direction and wherein rotation of the motion translating mechanism in a second direction effects rotation of the prosthesis retention mechanism in the second direction.