Patent ID: 9056024
Filing Date: 2015-06-16
Classification: A61F

Abstract:
1. An endovascular prosthesis having a proximal end and a distal end, comprising: a first expandable portion disposed at the distal end and expandable from a first, unexpanded state to a second, expanded state to urge the first expandable portion against a vascular lumen; and a retractable leaf portion disposed at the proximal end and attached to the first expandable portion, the retractable leaf portion comprising a single spine portion connected to the first expandable portion and a plurality of rib portions attached to the spine portion, the plurality of rib portions comprising a pair of rows of rib portions connected to opposed sides of the single spine portion, longitudinally adjacent pairs of rib portions being free of interconnecting struts, each of said rib portions having a proximal end adjacent the single spine portion and a distal end spaced therefrom, each of said plurality of rib portions being angled with respect to the single spine portion such that the distal end of each rib portion is closer to the first expandable portion than the proximal end of said each rib portion.