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    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER
    1.
    发明申请
    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER 有权

    公开(公告)号：US20220305237A1

    公开(公告)日：2022-09-29

    申请号：US17831189

    申请日：2022-06-02

    申请人： BioCardia, Inc.

    发明人： Wai Hsueh ,  Olin Jay Palmer ,  Scott Comiso ,  James B. Ross ,  Ken Vien ,  Julio Argentieri ,  Peter Altman

    IPC分类号： A61M25/06 ,  A61M25/00 ,  A61M25/09

    摘要： A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.

    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER
    3.
    发明申请
    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER 审中-公开
    径向和横向输送导管

    公开(公告)号：US20150231368A1

    公开(公告)日：2015-08-20

    申请号：US14501635

    申请日：2014-09-30

    申请人： BioCardia, Inc.

    发明人： Wai Hsueh ,  Olin Jay Palmer ,  Scott Comiso ,  James B. Ross ,  Ken Vien ,  Julio Argentieri ,  Peter Altman

    IPC分类号： A61M25/06 ,  A61M25/09

    CPC分类号： A61M25/0084 ,  A61B2017/00247 ,  A61B2090/036 ,  A61M2025/0089

    摘要： A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.

    摘要翻译： 针注射导管包括具有远端，近端，刚性近端部分，柔性远端部分和延伸通过其的输送腔的导管体。 在第一实施例中，直注射针从导管主体的柔性部分的远侧末端同轴延伸，以及多个穿透限制元件，其围绕直线注射针的基部周向定位，并被构造成径向向内折叠抵靠轴 当被限制在管状内腔中并且当不受约束时径向向外延伸。 在第二实施例中，螺旋针从导管主体的柔性部分的远端延伸。 螺旋针具有至少一个螺旋输送腔，其连接以从导管体的输送腔接收可注射物质。

    Radial and trans-endocardial delivery catheter
    5.
    发明授权
    Radial and trans-endocardial delivery catheter 有权

    公开(公告)号：US10780248B2

    公开(公告)日：2020-09-22

    申请号：US16059480

    申请日：2018-08-09

    申请人： BioCardia, Inc.

    发明人： Wai Hsueh ,  Olin Jay Palmer ,  Scott Comiso ,  James B. Ross ,  Ken Vien ,  Julio Argentieri ,  Peter Altman

    IPC分类号： A61M25/06 ,  A61M25/00 ,  A61M25/09 ,  A61B17/00 ,  A61B90/00

    摘要： A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.

    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER
    6.
    发明申请
    RADIAL AND TRANS-ENDOCARDIAL DELIVERY CATHETER 审中-公开

    公开(公告)号：US20180344986A1

    公开(公告)日：2018-12-06

    申请号：US16059480

    申请日：2018-08-09

    申请人： BioCardia, Inc.

    发明人： Wai Hsueh ,  Olin Jay Palmer ,  Scott Comiso ,  James B. Ross ,  Ken Vien ,  Julio Argentieri ,  Peter Altman

    IPC分类号： A61M25/06 ,  A61M25/09

    摘要： A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.