Endograft introducer and a capsule assembly for an endograft introducer

A system for delivering and deploying an expandable prosthesis, the system comprising:

• a sheath having a lumen;
• a delivery catheter including a longitudinally extending guide wire catheter, the delivery catheter slidably disposed within the lumen of the sheath;
• an expandable prosthesis disposed on a proximal portion of the delivery catheter;
• a haemostatic device sealingly engaging the delivery catheter;
• and
• a capsule assembly at the proximal portion of the delivery catheter, the capsule assembly comprising:
• a capsule retriever having a plug portion and a tail portion, the plug portion having a lead-in surface, the tail portion having an elongate body extending proximally from the plug portion to an end stop feature receiver;
• a capsule tube having an end stop feature at a proximal end thereof and terminating in a distal end;
• and
• a capsule cavity inside the capsule tube, a proximal end of the expandable prosthesis being receivable in the cavity,
• wherein the capsule tube is slidably movable with respect to the capsule retriever from an first position in which the distal end of the capsule tube surrounds an opening into the capsule cavity to a second position in which the distal end of the capsule tube is adjacent to the lead-in surface of the plug portion and the end stop feature and end stop feature receiver are engaged.

A system for delivering and deploying an expandable prosthesis, the system comprising:

• a sheath having a lumen;
• a delivery catheter including a longitudinally extending guide wire catheter, the delivery catheter slidably disposed within the lumen of the sheath;
• an expandable prosthesis disposed on a proximal portion of the delivery catheter;
• a haemostatic device sealingly engaging the delivery catheter;
• and
• a capsule assembly at the proximal portion of the delivery catheter, the capsule assembly comprising:
• a capsule tube terminating in a distal end;
• a proximal capsule end wall, the end wall defining a wall aperture and an end stop feature;
• a capsule cavity generally bounded by the capsule tube and the proximal capsule end wall, a proximal end of the expandable prosthesis being receivable in the cavity;
• and
• a capsule retriever having a plug portion and a tail portion, the plug portion having a lead-in surface, the tail portion having an elongate body extending proximally from the plug portion through the wall aperture and having an end stop feature receiver, the end stop feature and end stop feature receiver mutually engagable.