CONTROLLED OPENING OF EXPANDABLE ACCESS SHEATHS

    公开(公告)号:US20250064588A1

    公开(公告)日:2025-02-27

    申请号:US18943635

    申请日:2024-11-11

    Abstract: A medical access system can comprise an expandable access sheath and an introducer. The expandable access sheath can comprise a sheath shaft comprising an expandable distal end portion, and a shaft delivery lumen extending therethrough. The introducer can comprise an introducer shaft configured to be at least partially disposed within the shaft delivery lumen. The introducer shaft can comprise a first distal portion comprising a first diameter and a second distal portion proximal of the first distal portion and having a second diameter larger than the first diameter. A second externally oriented surface portion defining the second distal portion, and an externally oriented transition surface portion extending between a first externally oriented surface portion defining the first distal portion and the second externally oriented surface, can be angled relative to one another, such as forming an angle between about 80 degrees and about 100 degrees.

    PERCUTANEOUS IMPLANT RETRIEVAL METHODS
    3.
    发明公开

    公开(公告)号:US20230390058A1

    公开(公告)日:2023-12-07

    申请号:US18446116

    申请日:2023-08-08

    Abstract: Devices and methods for retrieving percutaneously implanted catheter systems such as a heart valve repair system. The devices include at least one locking connector at the distal end of a flexible elongated extension for coupling to an implanted tubular member. The locking connector may be a tubular anchor having a pair of distal prongs which are biased outward and face in a proximal direction, as well as an expandable auxetic midsection. Inserting the tubular anchor into the implanted tubular member flexes the distal prongs inward such that they prevent proximal movement of the tubular anchor. A user pulls on the proximal end of the tubular anchor to expand the auxetic midsection and lock the two pieces together. The devices and methods are particularly useful to attach extensions to implanted concentric tubes to enable relative axial force application.

    MEDICAL DELIVERY SHEATH ASSEMBLY
    5.
    发明申请

    公开(公告)号:US20250018151A1

    公开(公告)日:2025-01-16

    申请号:US18903821

    申请日:2024-10-01

    Abstract: A medical delivery sheath assembly can comprise a first hub portion comprising a first delivery lumen configured to slidably receive at least a portion of a first medical device, and a second hub portion comprising a second delivery lumen configured to slidably receive at least a portion of a second medical device. A longitudinal axis of the first delivery lumen and a longitudinal axis of the second delivery lumen can form an acute angle where a distal portion of the first hub portion and a distal portion of the second hub portion merge. A joint hub portion can be coupled to the distal portion of the first hub portion and the distal portion of the second hub portion. The joint hub portion can comprise a third delivery lumen configured to slidably receive corresponding portions of each the first medical device and the second medical device.

    PERCUTANEOUS IMPLANT RETRIEVAL SYSTEM

    公开(公告)号:US20210015611A1

    公开(公告)日:2021-01-21

    申请号:US17060918

    申请日:2020-10-01

    Abstract: Devices and methods for retrieving percutaneously implanted catheter systems such as a heart valve repair system. The devices include at least one locking connector at the distal end of a flexible elongated extension for coupling to an implanted tubular member. The locking connector may be a tubular anchor having a pair of distal prongs which are biased outward and face in a proximal direction, as well as an expandable auxetic midsection. Inserting the tubular anchor into the implanted tubular member flexes the distal prongs inward such that they prevent proximal movement of the tubular anchor. A user pulls on the proximal end of the tubular anchor to expand the auxetic midsection and lock the two pieces together. The devices and methods are particularly useful to attach extensions to implanted concentric tubes to enable relative axial force application.

    Percutaneous implant retrieval connector and method

    公开(公告)号:US10799350B2

    公开(公告)日:2020-10-13

    申请号:US16222914

    申请日:2018-12-17

    Abstract: Devices and methods for retrieving percutaneously implanted catheter systems such as a heart valve repair system. The devices include at least one locking connector at the distal end of a flexible elongated extension for coupling to an implanted tubular member. The locking connector may be a tubular anchor having a pair of distal prongs which are biased outward and face in a proximal direction, as well as an expandable auxetic midsection. Inserting the tubular anchor into the implanted tubular member flexes the distal prongs inward such that they prevent proximal movement of the tubular anchor. A user pulls on the proximal end of the tubular anchor to expand the auxetic midsection and lock the two pieces together. The devices and methods are particularly useful to attach extensions to implanted concentric tubes to enable relative axial force application.

    Percutaneous implant retrieval methods

    公开(公告)号:US12245938B2

    公开(公告)日:2025-03-11

    申请号:US18446116

    申请日:2023-08-08

    Abstract: Devices and methods for retrieving percutaneously implanted catheter systems such as a heart valve repair system. The devices include at least one locking connector at the distal end of a flexible elongated extension for coupling to an implanted tubular member. The locking connector may be a tubular anchor having a pair of distal prongs which are biased outward and face in a proximal direction, as well as an expandable auxetic midsection. Inserting the tubular anchor into the implanted tubular member flexes the distal prongs inward such that they prevent proximal movement of the tubular anchor. A user pulls on the proximal end of the tubular anchor to expand the auxetic midsection and lock the two pieces together. The devices and methods are particularly useful to attach extensions to implanted concentric tubes to enable relative axial force application.

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