公开(公告)号：US11896506B2

公开(公告)日：2024-02-13

申请号：US16046174

申请日：2018-07-26

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Thomas M. Keating ,  Martyn G. Folan ,  Thomas Holly ,  Anthony Creane ,  Paul E. Tierney

IPC: A61F2/86 ,  A61F2/848 ,  A61F2/90 ,  B21F45/00 ,  B31C1/08 ,  B21D37/00

CPC classification number: A61F2/86 ,  A61F2/848 ,  A61F2/90 ,  B21D37/00 ,  B21F45/008 ,  B31C1/083 ,  A61F2240/001 ,  A61F2240/005 ,  A61F2250/0004 ,  A61F2250/0039

Abstract: A mandrel for forming a stent with a tapered profile and one or more anti-migration features includes a first stent shaping segment having a first diameter, a second stent shaping segment having a second diameter less than the first diameter and a tapered segment disposed therebetween. A third stent shaping segment is releasably securable to the second stent shaping segment and has a third diameter greater than the second diameter. One or more movable pins are outwardly extendable from corresponding apertures formed within the tapered segment. An actuation element is engagable with the first stent shaping segment and includes a tapered surface configured to engage the one or more movable pins and support the one or more movable pins extended from the corresponding apertures.