CO-AXIAL DELIVERY SYSTEM FOR SELF-EXPANDING STENTS HAVING DISTAL RETENTION STRUCTURE

    公开(公告)号:US20250161085A1

    公开(公告)日:2025-05-22

    申请号:US18952612

    申请日:2024-11-19

    Abstract: An assembly for use in endoscopic stent delivery, including a stent delivery device and an associated stent loaded therein. The stent delivery device includes an outer tubular member, an inner member slidably disposed within the lumen of the outer tubular member, and a distal tip disposed at the distal end of the inner member. A self-expanding stent is positioned within the outer tubular member in a compressed configuration, with one or more retaining loops extending from the body of the stent and engaged with a retaining structure, such as a notch, provided by the distal tip. Upon deployment of the stent from the stent delivery device, proximal withdrawal of the distal tip through the lumen of the stent disengages the one or more retaining loops from the retaining structure.

    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

    CPC classification number: A61F2/852 A61F2/954 A61F2/962 A61F2002/826

    Abstract: 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

    Abstract: 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.

    STENT SYSTEM FOR MAINTAINING PATENCY OF A BODY LUMEN

    公开(公告)号:US20240225863A9

    公开(公告)日:2024-07-11

    申请号:US18382894

    申请日:2023-10-23

    CPC classification number: A61F2/852 A61F2/954 A61F2/962 A61F2002/826

    Abstract: 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.

    STENT WITH SELF-ADJUSTING ANTI-MIGRATION FEATURES

    公开(公告)号:US20240189123A1

    公开(公告)日:2024-06-13

    申请号:US18535347

    申请日:2023-12-11

    CPC classification number: A61F2/86 A61F2210/00 A61F2220/0075

    Abstract: A stent may include a radially expandable tubular framework includes a first end region, a second end region, a medial region positioned between the first end region and the second end region, and a lumen extending therethrough. The radially expandable tubular framework is configured to expand from a radially collapsed configuration to a radially expanded configuration. A plurality of covering strips are positioned along at least one of the first end region, the medial region, and the second end region. The plurality of covering strips fully covering the radially expandable tubular framework in the radially collapsed configuration, and the plurality of covering strips are configured to separate from one another in the radially expanded configuration to expose portions of the radially expandable tubular framework therebetween.

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