Delivery Device and Delivery System

Abstract

A delivery device (100) and a delivery system (300) are provided. The delivery device (100) includes a catheter assembly (20) and a control mechanism (10); the catheter assembly (20) includes an outer sheath catheter (21) and a sheath core (22); the control mechanism (10) can control the outer sheath catheter (21) to move; a TIP head (23) is arranged at a distal end of the sheath core (22); the control mechanism (10) includes a fixed assembly (11) and a moving assembly (12); the moving assembly (12) is arranged close to a proximal end of the fixed assembly (11); a proximal end portion of the outer sheath catheter (21) passes through the fixed assembly (11) and then is connected to the moving assembly (12), and under the control of the moving assembly (12), the outer sheath catheter (21) can move relative to the fixed assembly (11). When the end surface of a distal end of the outer sheath catheter (21) abuts against the end surface of a proximal end of the TIP head (23), the end surface of a distal end of the moving assembly (12) is separated from the end surface of the proximal end of the fixed assembly (11). Thus, a compressible stroke is provided for the outer sheath catheter (21), solving the problem that the distal end of the outer sheath catheter (21) loaded with an implant (200) cannot be closed with the TIP head (23) due to shortening of the outer sheath catheter (21) or lengthening of the sheath core (22) when the outer sheath catheter (21) of the delivery device (100) is loaded with the implant (200).

Dependencies are inferred from the claim text.