Patent ID: 8303616

Claim:
A delivery system for delivering an expandable medical device to a body location, the expandable medical device having a reduced configuration and an expanded configuration, the delivery system comprising: a catheter, the catheter having a catheter shaft having a proximal region and a distal region, the catheter shaft defining a pull-wire lumen, at least a portion of the distal region defining a medical device receiving region; the expandable medical device disposed about the medical device receiving region in the reduced configuration, the expandable medical device further having proximal and distal device ends; at least one retractable retaining wire, at least a portion of the at least one retractable retaining wire wound about at least a portion of the expandable medical device and retaining the expandable medical device in the reduced configuration, one end of the at least one retractable retaining wire terminating in at least one pull-wire, the at least one pull-wire extending into the pull-wire lumen to the proximal region of the catheter shaft; and a portion of the medical device receiving region defining at least one lumen port, the at least one lumen port positioned centrally in the medical device receiving region, the at least one pull-wire extending proximally from the proximal end of the at least one retractable retaining wire and passing through the at least one lumen port to enter into the pull-wire lumen.