Patent ID: 8672994
Filing Date: 2014-03-18
Classification: A61F,A61M

Abstract:
1. A prosthesis for placement at an opening from a main body lumen to a branch body lumen, the prosthesis comprising: a radially expansible support comprising a first wall pattern, the support configured to be deployed in at least a portion of the branch body lumen, the support adapted to provide a first radial force to support a body lumen; at least two elongate, flexible fronds extending from an end of the support, each frond having a first end, a second end, and comprising first and second spaced apart filaments each having first and second ends, the first end of the first filament being directly connected to a first proximal apex of the radially expansible support, the first end of the second filament being directly connected to a second proximal apex of the radially expansible support, the first proximal apex being spaced apart from the second proximal apex, the second end of the second filament being coupled with the first filament at a location proximal of a transition portion of the frond, the transition portion comprising a second wall pattern different from the first wall pattern, the transition portion of the frond extending from an end of the support and configured to be positioned across the opening and into the main body lumen, the fronds comprising an elongate portion disposed proximal of the transition portion, the elongate portion having a third wall pattern different from the second wall pattern; at least one circumferential link connected to the second ends of the fronds, the second end of each frond connected to a corresponding single location of the circumferential link, the circumferential link spaced axially apart from the support by the fronds and adapted to provide a second radial force that is less than the first radial force; and a plurality of elongate side wall openings located at least partially proximal of the transition portion in between adjacent fronds sized and configured to receive a stent deployment device therethrough; the elongate flexible fronds, the support and the circumferential link defining a unitary body as deployed, the elongate side wall openings in between adjacent fronds for facilitating crossing of a main vessel stent therethrough when the support is positioned in the branch body lumen and the circumferential link is positioned in the main body lumen.