Delivery system for prosthetic heart valve

A delivery apparatus for implanting a prosthetic implant in a native lumen of the body, the apparatus comprising:

• a handle portion;
• a first shaft extending from and movable relative to the handle portion, the first shaft comprising a proximal end portion coupled to the handle portion and a distal end portion;
• a second shaft extending from the handle portion and coaxially disposed within the first shaft, the second shaft comprising a proximal end portion coupled to the handle portion and a distal end portion configured to mount a prosthetic implant in a radially compressed state;
• the handle portion comprising a steering assembly configured to move the first shaft longitudinally relative to the second shaft while concurrently flexing the second shaft;
• wherein the steering assembly further comprises a rotatable member coupled to the proximal end portion of the first shaft such that rotation of the rotatable member causes corresponding proximal and distal motion of the first shaft relative to the second shaft;
• wherein the rotatable member is coupled to the distal end portion of the second shaft by a pull wire such that rotation of the rotatable member causes corresponding flexing and unflexing of the distal end portion of the second shaft.