Patent attributes
The present invention relates to a delivery apparatus for delivering a radially self-expanding medical device (2) having a proximal portion and a distal portion, said delivery apparatus comprising an elongated tubular member having a proximal end, a distal end and a lumen (122) extending along a longitudinal axis from the proximal end to the distal end; a sheath (11), said sheath (11) being coaxially disposed around the elongated tubular member (12); wherein the elongated tubular member (12) is movable relative to the sheath (11); and wherein the sheath (11) is configured for receiving the radially self-expanding medical device (2) in a radially compressed state; and a holding and retrieving mechanism configured to constrain radially the proximal portion of the radially self-expanding medical device (2) such that in response to a proximal movement of the elongated tubular member (12) relative to the sheath (11), the holding and retrieving mechanism (13) constrains radially the proximal portion of the radially self-expanding medical device (2) and the radially self-expanding medical device (2) is collapsed within the sheath (11).
