Handle for medical device deployment

A delivery system for endoluminal delivery of an expandable device, the delivery system comprising

• a catheter having a proximal end and an opposite distal end, the distal end configured to support the expandable device;
• a primary sheath having a delivery position in which the primary sheath constrains the expandable device toward a collapsed configuration suitable for endoluminal delivery;
• and
• a handle having a first actuator that is rotatable and non-translatable wherein rotation of the first actuator causes axial displacement of the primary sheath from the delivery position, the handle having a second actuator for operating one or more functions of the handle, wherein the second actuator is initially hidden to prevent use by a user and then revealed as a result of the axial displacement of the primary sheath so as to allow subsequent actuation of the second actuator by the user,
• wherein the second actuator is revealed after an initial delay following displacement of the primary sheath from the delivery position.

A delivery system for endoluminal delivery of an expandable device, said delivery system comprising

• a catheter having a proximal end and an opposite distal end, the distal end configured to support the expandable device;
• a follower fixedly secured to a primary sheath for movement therewith;
• the primary sheath having a delivery position in which the primary sheath constrains the expandable device toward a collapsed configuration suitable for endoluminal delivery, wherein the primary sheath is displaceable by actuation of a positioner mechanism, the positioner mechanism having a tubular wall having a longitudinal axis and an inner surface defining a lumen extending along the longitudinal axis and including a helically extending slot for engaging the follower, the lumen capable of receiving the primary sheath and the follower therethrough such that a rotation of the tubular wall about the longitudinal axis causes axial displacement of the primary sheath and follower along the lumen;
• and
• a handle having a first actuator for axially displacing the primary sheath from the delivery position, the handle having a second actuator for operating one or more functions of the handle, the second actuator including a longitudinally extending arm for engaging the primary sheath, wherein the second actuator is displaced from initially hidden to prevent use by a user and then revealed as a result of axial displacement of the primary sheath from the delivery position so as to allow subsequent actuation of the second actuator by the user.