STENT SYSTEM FOR MAINTAINING PATENCY OF A BODY LUMEN

    公开(公告)号:US20240130872A1

    公开(公告)日:2024-04-25

    申请号:US18382894

    申请日:2023-10-22

    IPC分类号: A61F2/852 A61F2/954 A61F2/962

    摘要: A system for maintaining patency of a body lumen may include a first endoprosthesis configured to shift from a straightened configuration to a helical configuration defining a plurality of loops, and a second endoprosthesis configured to shift from a radially collapsed configuration toward a radially expanded configuration. The plurality of loops defines a passage having an inner diameter. At least a portion of the second endoprosthesis is disposed within the passage in the radially expanded configuration. A method of maintaining patency of a body lumen may include advancing a first endoprosthesis into a first body lumen in a straightened configuration, deploying the first endoprosthesis within the first body lumen in a helical configuration defining a plurality of loops, advancing a second endoprosthesis into the first body lumen in a radially collapsed configuration, and shifting the second endoprosthesis to a radially expanded configuration within the plurality of loops.

    STENTS AND METHODS FOR MANAGING PASSAGE OF MATERIAL THROUGH A BODY LUMEN

    公开(公告)号:US20210007869A1

    公开(公告)日:2021-01-14

    申请号:US16925701

    申请日:2020-07-10

    IPC分类号: A61F2/90 A61F2/848

    摘要: The present disclosure relates generally to stents and methods for managing passage of material through a body lumen. In some embodiments, a medical stent may include a stent body defined by a hollow tubular elongate structure extending along a central axis, the stent body including a first portion and a second portion. The medical stent may further include a control region between the first and second portions, wherein in a first configuration the hollow tubular elongate structure of the control region is in a closed, twisted configuration, and wherein in a second configuration the hollow tubular elongate structure of the control region is in an open, expanded configuration.

    ENDOPROSTHESIS FOR ENHANCED SIDE BRANCH ACCESS

    公开(公告)号:US20240216153A1

    公开(公告)日:2024-07-04

    申请号:US18403488

    申请日:2024-01-03

    IPC分类号: A61F2/856 A61F2/90

    摘要: An endoprosthesis includes an elongated tubular member including a filament forming circumferential rows having a plurality of knitted loops and intermediate rungs extending between adjacent knitted loops. The tubular member includes at least one window and may include a plurality of anti-migration loops adjacent the at least one window and configured to shift between first and second positions when unconstrained. Making the endoprosthesis includes forming the plurality of knitted loops and intermediate rungs in a first row of loops and rungs, extending the filament to form a second row of loops and rungs interwoven with the first row, and forming the at least one window without cutting the filament. Placing the endoprosthesis includes positioning the endoprosthesis within a body lumen adjacent a branch lumen, expanding the tubular member to span the branch lumen, and shifting at least some anti-migration loops toward the second position and into the branch lumen.

    Anti-migration stent
    6.
    发明授权

    公开(公告)号:US11759341B2

    公开(公告)日:2023-09-19

    申请号:US17125116

    申请日:2020-12-17

    摘要: An illustrative stent includes an elongated tubular member comprising at least one strut or filament forming a tubular wall having a plurality of cells extending through a thickness of the tubular wall. The elongated tubular member may be configured to move between a radially collapsed configuration and a radially expanded configuration. A coating is disposed on the elongated tubular member and spanning the plurality of cells. The coating forms a pocket within at least some of the cells of the plurality of cells and extends radially inward of the tubular wall to define a void. In some instances, a partition or wall is positioned within at least some of the pockets and transects the void.

    DEVICES, SYSTEMS, AND METHODS FOR ACCESSING A BODY LUMEN

    公开(公告)号:US20210015548A1

    公开(公告)日:2021-01-21

    申请号:US16930764

    申请日:2020-07-16

    IPC分类号: A61B18/14 A61B18/12

    摘要: The present disclosure relates generally to the field of medical devices for accessing body lumens. In particular, the present disclosure relates to medical devices, systems and methods for enlarging an opening of a body lumen. In an embodiment, a device may include a flexible elongate tube. A distal end of the tube may be configured to access an opening of a body lumen. A plurality of wire lumens may extend from the distal end of the tube toward a proximal end of the tube that are radially offset from and substantially parallel with a longitudinal axis. At least a portion of the plurality of wire lumens may be exposed to an outer surface of the tube along a distal portion. A plurality of wires may each extend along a respective wire lumen. A portion of each wire may extend externally to the wire lumens exposed to the outer surface.