ENDOVASCULAR PROSTHESIS AND DELIVERY DEVICE

摘要

In one of its aspects, the present invention relates to an endovascular prosthesis. The endovascular prosthesis comprises a first expandable portion 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 attached to the first expandable portion. The retractable leaf portion comprises at least one spine portion and a plurality of rib portions attached to the spine portion. Longitudinally adjacent pairs of rib portions are free of interconnecting struts. The endovascular prosthesis that can be unsheathed and re-sheathed for repositioning of the endovascular prosthesis prior to final deployment thereof. There is also described a delivery device that that is particularly well suited to delivering the present endovascular prosthesis through tortuous vasculature in the body.

主权项

1. An endovascular prosthesis comprising:
a first expandable portion 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 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.