A delivery device (100), comprising a catheter assembly (20) and a control assembly (10)； the control assembly (10) is provided at a proximal end of the catheter assembly (20), and the control assembly (10) comprises a first control mechanism (11)； the first control mechanism (11) comprises a hollow casing (14) and a limiting unit (15), and the limiting unit (15) comprises a limiting member (151) and a hollow receiving member (152), the receiving member (152) being disposed within the casing (14)； an outer surface of the receiving member (152) is provided with an axial groove (153) and a circumferential groove (154), the limiting member (151) partially passing through the casing (14), then being received within the axial groove (153) or the circumferential groove (154) such that the casing (14) may move axially or circumferentially, the casing (14) then driving the limiting member (151) to move axially or circumferentially. By means of providing the first control mechanism (11), the delivery device (100) and the delivery system directly control a connection catheter in the catheter assembly (20) that is connected to an implant to quickly switch from axial movement to circumferential movement, thereby achieving an accurate and reliable release position of the implant such that the implant is closely fitted with the tissue, and the risk of paravalvular leakage occurring is reduced.L'invention concerne un dispositif de pose (100), comprenant un ensemble cathéter (20) et un ensemble de commande (10) ； l'ensemble de commande (10) est disposé au niveau d'une extrémité proximale de l'ensemble cathéter (20), et l'ensemble de commande (10) comprend un premier mécanisme de commande (11) ； le premier mécanisme de commande (11) comprend un boîtier creux (14) et une unité de limitation (15), et l'unité de limitation (15) comprend un élément de limitation (151) et un élément de réception creux (152), l'élément de réception (152) étant disposé à l'intérieur du boîtier (14) ； une s
