A kit (1) for the implantation of a prosthetic vascular conduit (40) including:- a prosthetic vascular conduit (40) for coupling to a prosthetic valve (V) having an annular portion (SR), the prosthetic vascular conduit (40) including a terminal collar member (42) configured for receiving the annular portion of the valve (V),- a holder device (2) including a shaft (4) and a hub (12) located at an end of a proximal portion (8) of said shaft (4), the hub including a receiving portion (28) configured for housing a prosthetic valve (V),- a sleeve member (48) fitted onto said conduit (40) and- wherein the sleeve member (48) is slidable away from said hub (12) to unwrap a cuff (420) around the annular portion (SR) of a prosthetic valve (V) housed within the receiving portion (28) of said hub (12).
