公开(公告)号：US12109135B2

公开(公告)日：2024-10-08

申请号：US18156699

申请日：2023-01-19

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： William Bertolino ,  Laura Elizabeth Firstenberg ,  Claire M. Mcleod ,  Andrea Lai ,  Sandra Lam ,  Shannon Taylor

IPC: A61F2/90 ,  A61F2/848 ,  A61F2/86 ,  A61F2/91 ,  A61F2/04 ,  A61F2/07 ,  B29C33/42 ,  B29C39/02 ,  B29C39/10 ,  B29C41/14 ,  B29C41/20 ,  B29C45/37 ,  B29C53/58 ,  B29C65/00 ,  B29C65/48 ,  B29D23/00 ,  B29K101/00 ,  B29L16/00 ,  B29L23/00 ,  B29L31/00

CPC classification number: A61F2/90 ,  A61F2/848 ,  A61F2/86 ,  A61F2/91 ,  A61F2/04 ,  A61F2002/044 ,  A61F2/07 ,  A61F2002/8483 ,  A61F2002/8486 ,  A61F2220/0016 ,  A61F2220/005 ,  A61F2240/001 ,  A61F2250/0059 ,  B29C33/42 ,  B29C33/424 ,  B29C39/026 ,  B29C39/10 ,  B29C41/14 ,  B29C41/20 ,  B29C45/372 ,  B29C53/587 ,  B29C65/48 ,  B29C66/1122 ,  B29C66/52272 ,  B29C66/5326 ,  B29C66/742 ,  B29D23/00 ,  B29D23/001 ,  B29K2101/00 ,  B29L2016/00 ,  B29L2023/00 ,  B29L2031/7532 ,  B29L2031/7534

Abstract: An endoprosthesis has an expanded state and a contracted state, the endoprosthesis includes a stent having an inner surface defining a lumen, having an outer surface, and defining a plurality of apertures through the outer surface, wherein the apertures are arranged in a micropattern; and a coating (e.g., polymeric coating) attached to the outer surface of the stent. The coating includes a base and a tissue engagement portion including a second surface facing outwardly from the stent, the tissue engagement portion including a structure that defines a plurality of holes extending inwardly from the second surface toward the base. The holes are arranged in a micropattern. When the endoprosthesis is expanded to the expanded state in a lumen defined by a vessel wall, the structure applies a force that may reduce stent migration by creating an interlock between the vessel wall and the endoprosthesis.