STENT INCLUDING ANTI-MIGRATION CAPABILITIES

    公开(公告)号:US20220133461A1

    公开(公告)日:2022-05-05

    申请号:US17573754

    申请日:2022-01-12

    Abstract: An example medical device for treating a body lumen is disclosed. The medical device includes an expandable scaffold including first and second regions, each of the first and second regions include a plurality of interstices located therein. The medical device also includes a covering spanning each of the plurality of interstices of the first region. The second region is free of the covering. A biodegradable gripping material is disposed on an outer surface of the covering. Further, the expandable scaffold is configured to shift from a collapsed state to an expanded state and the second region is configured to contact an inner surface of the body lumen in the expanded state. Additionally, the gripping material is designed to initially prevent migration of the expandable scaffold upon implantation in the body lumen until the second region is secured to the inner surface of the body lumen.

    STENT RETRIEVAL SYSTEM
    12.
    发明申请

    公开(公告)号:US20200046528A1

    公开(公告)日:2020-02-13

    申请号:US16658407

    申请日:2019-10-21

    Abstract: A braided stent having a plurality of retrieval and/or repositioning levers includes a stent body formed of a plurality of wires interbraided in a braided pattern. The repositioning and/or retrieval levers have a loop portion extending radially away from the stent body and first and second legs extending along the stent body. The levers are configured to be actuated radially inward toward the central longitudinal axis of the stent by a radially inwardly directed force to radially collapse the stent.

    ADJUSTABLE MANDREL FOR FORMING STENT WITH ANTI-MIGRATION FEATURES

    公开(公告)号:US20190029850A1

    公开(公告)日:2019-01-31

    申请号:US16046174

    申请日:2018-07-26

    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.

    RETRIEVABLE STENT SYSTEM
    14.
    发明申请

    公开(公告)号:US20180280167A1

    公开(公告)日:2018-10-04

    申请号:US15936651

    申请日:2018-03-27

    Abstract: A system for treating a body lumen including a first stent configured to be positioned in a body lumen and a second stent configured to be positioned in the lumen of the first stent prior to removing the first stent from the body lumen. The first stent includes a liner disposed radially inward of the tubular scaffold of the first stent to permit tissue ingrowth within a tissue ingrowth region defined between the liner and the tubular scaffold. The retrieval stent is configured to be expanded within the previously implanted first stent to cause tissue to recede from the tissue ingrowth region to facilitate removal of the first stent from the body lumen.

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