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    EXPANDABLE SHEATH WITH FOLD
    1.
    发明公开
    EXPANDABLE SHEATH WITH FOLD 审中-公开

    公开(公告)号：US20230381455A1

    公开(公告)日：2023-11-30

    申请号：US18201462

    申请日：2023-05-24

    申请人： ABIOMED, Inc.

    发明人： Glen R. Fantuzzi ,  Robert Fishman ,  Jonathan Barry ,  Anne Gabrielle McLoughlin

    IPC分类号： A61M25/01 ,  A61M60/13

    CPC分类号： A61M25/01 ,  A61M60/13

    摘要： The systems, methods, and devices that provide an expandable sheath assembly for insertion of an interventional medical device (e.g., an intracardiac heart pump) into a blood vessel through a vessel aperture. The assembly may have an elongate sheath body having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end. The sheath body may have a first layer, wherein the first layer is a liner defining the lumen. The sheath body may have a second layer disposed over the first layer, wherein the second layer is a patterned structure. The sheath body may have a third layer disposed over the second layer. The elongate sheath body may include a slit through the second layer and the third layer, wherein the slit extends along at least a portion of the elongate sheath body. A first portion of the elongate sheath body may overlap a second portion of the elongate sheath body along the slit to form a fold.

    Persistent perfusion sheath
    2.
    发明授权
    Persistent perfusion sheath 有权

    公开(公告)号：US11497894B2

    公开(公告)日：2022-11-15

    申请号：US16723253

    申请日：2019-12-20

    申请人： Abiomed, Inc.

    发明人： Christopher Nason Korkuch ,  Caitlyn Hastie ,  Glen Robert Fantuzzi ,  Robert Fishman

    IPC分类号： A61M25/00 ,  A61M25/06 ,  A61M25/10 ,  A61F2/958 ,  A61M60/135

    摘要： A persistent perfusion sheath assembly can be used for the passage of an intravascular medical device while maintain a flow passage in the vessel. The sheath assembly passes through an arteriotomy and can include a first lumen configured for the passage of a medical device, a second lumen configured to allow a flow of fluid from a location in the blood vessel upstream of the arteriotomy to a location downstream of the arteriotomy. The sheath assembly can further include a stylet, a sleeve or an additional sheath configured to selectively open and close the flow of blood between upstream and downstream of the arteriotomy. The sheath assembly can further include a closure device distal of the arteriotomy, the closure device configured to control blood flow through the arteriotomy.

    EXPANDABLE INTRODUCER SHEATH FOR MEDICAL DEVICE
    3.
    发明申请
    EXPANDABLE INTRODUCER SHEATH FOR MEDICAL DEVICE 审中-公开

    公开(公告)号：US20200054861A1

    公开(公告)日：2020-02-20

    申请号：US16540922

    申请日：2019-08-14

    申请人： Abiomed, Inc.

    发明人： Christopher Nason Korkuch ,  Glen R. Fantuzzi ,  Alexander Ship ,  Robert Swierczek ,  Robert Fishman

    IPC分类号： A61M25/06 ,  A61M1/10 ,  A61M1/12 ,  A61M25/00

    摘要： An introducer sheath for the insertion of a medical device into a blood vessel having an expandable sheath. The sheath has a length, a thickness, and proximal and distal ends. The expandable sheath has a frame extending longitudinally between the proximal and the distal ends, and having an exterior surface and an interior surface that forms an interior lumen along the length of the frame. The frame is configured to achieve an expanded state and a contracted state, the expanded state forming an expanded cross-section in the lumen for passing a medical device therethrough. The frame has a smooth coating about the exterior surface and protrusions extending into the lumen along the interior surface. The introducer sheath can be introduced into a patient in the contracted state, with the distal end of the introducer sheath prevented from moving in the proximal direction by an abutment against a dilator end surface.

    EXPANDABLE SHEATH WITH INTERLOCK DILATOR
    9.
    发明申请
    EXPANDABLE SHEATH WITH INTERLOCK DILATOR 有权

    公开(公告)号：US20210236783A1

    公开(公告)日：2021-08-05

    申请号：US17165421

    申请日：2021-02-02

    申请人： ABIOMED, Inc.

    发明人： Christopher N. Korkuch ,  Robert Fishman ,  Michael Finnegan ,  Charles DeLorenzo ,  Andrew Gentile ,  Anne Gabrielle McLoughlin ,  Robert Swierczek

    IPC分类号： A61M29/02

    摘要： An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface that is configured to engage with the step feature of the expandable sheath. When the step feature engages the catch surface, it resists further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. The nature of the interlocking engagement between the step feature and the catch surface allows the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by simply pulling the dilator in the opposite direction. The present technology also provides a dilator hub with a spring mechanism configured to achieve and maintain a desired tension on the expandable sheath and to prevent overextension of the expandable sheath when the dilator is being inserted into the expandable sheath.