COLLAPSIBLE AND EXPANDABLE SUPPORT FRAMES FOR CATHETER TIPS

    公开(公告)号:US20240066264A1

    公开(公告)日:2024-02-29

    申请号:US17895308

    申请日:2022-08-25

    Inventor: Karl KEATING

    CPC classification number: A61M25/0074 A61B17/22 A61M25/008 A61B2017/22079

    Abstract: The systems and devices disclosed herein are for a catheter tip that includes a support frame. The support frame can include a longitudinal axis, a collapsed delivery configuration, and an expanded deployed configuration. The support frame can include a collapsed inner diameter in the collapsed delivery configuration and a larger expanded inner diameter in the expanded deployed configuration when the support frame is placed in axial compression. In some examples, the support frame can include one or more profiled spine members extending along the longitudinal axis and a plurality of ribs extending from the one or more profiled spine members. In some examples, the support frame can include a connector rib and a plurality of offset ribs extending from the connector rib. One or more connector members can connect respective ribs of the offset ribs. In some examples, the support frame can include struts forming a lattice structure.

    CATHETER ASSEMBLY
    5.
    发明公开
    CATHETER ASSEMBLY 审中-公开

    公开(公告)号:US20240042140A1

    公开(公告)日:2024-02-08

    申请号:US18486218

    申请日:2023-10-13

    Inventor: Masahiro Ishida

    Abstract: A catheter assembly includes: a catheter including a circumferential wall and a distal opening; an inner needle inserted through the catheter, the inner needle having a sharp needle tip at a distal end of the inner needle; and a deflection suppression mechanism that supports the inner needle via the catheter to suppress deflection of the inner needle, the deflection suppression mechanism including a contact support portion that is configured to support the catheter when the catheter is advanced with respect to the inner needle. The circumferential wall of the catheter includes one or more side holes. In an initial state before the catheter is advanced with respect to the inner needle, a distal-most one of the one or more side holes is in a distal portion of the catheter, and the contact support portion is proximal of a proximal-most one of the one or more side holes.

    CATHETER CONSTRUCTION
    6.
    发明公开

    公开(公告)号:US20240033469A1

    公开(公告)日:2024-02-01

    申请号:US18457142

    申请日:2023-08-28

    Inventor: Brian B. MARTIN

    CPC classification number: A61M25/0023 A61M25/008 A61M25/0053 A61M2025/0081

    Abstract: Polymeric tubing, for use with catheters or other medical devices, where the polymeric tubing can have regions of customized properties including, but not limited to, durometer, torque control, flexibility, axial strength, stiffness, etc. One variation of the device allows for transitions between regions to be configured such that there can be gradual or customized transitions between various regions such that the structural characteristics differential between the regions selectively designed. Additional variations include outer layers having a plurality of material sections extending in a spiral direction along the axial length to form a continuous wall of the outer layer. In certain variations, the structural characteristic differential is minimized or eliminated as compared to conventional catheters.

    VASCULAR OCCLUSION CATHETER
    7.
    发明公开

    公开(公告)号:US20230414221A1

    公开(公告)日:2023-12-28

    申请号:US17800487

    申请日:2022-03-17

    Abstract: A vascular occlusion catheter includes a proximal outer shaft, a distal outer shaft distally terminating with an atraumatic tip, and an occlusion balloon therebetween. The proximal shaft has first and second internal lumens, the first internal lumen being in fluid communication with the balloon. The distal shaft has a distal internal lumen. A hypotube extends through the first internal lumen, through the balloon and into communication with the distal internal lumen. A first window is formed in the proximal shaft and a proximal sensor is positioned within the second internal lumen at the window. A second window is formed in the distal shaft and a distal sensor is positioned within the distal internal lumen at the window. A display hub is positioned along the proximal shaft and electrically connected with the sensors The uninflated vascular occlusion catheter has a greatest outer diameter of seven French or less.

    Catheter and method of engaging catheter

    公开(公告)号:US11779729B2

    公开(公告)日:2023-10-10

    申请号:US17116390

    申请日:2020-12-09

    CPC classification number: A61M25/0041 A61M25/0141 A61M25/008 A61M25/0054

    Abstract: A catheter for a hepatic artery introduced from an arm of a patient includes a first bent portion, a second bent portion distal of the first bent portion and bent to the same side as the first bent portion, a third bent portion disposed on a distal side of the second bent portion and bent to an opposite side from the second bent portion, and a most distal end portion disposed distal of the third bent portion, in which a minimum radius of curvature of the first bent portion is larger than a minimum radius of curvature of the second bent portion. The most distal end portion is directed to a common hepatic artery and the first bent portion comes into contact with an aorta wall on an opposite side from a celiac artery when the second bent portion contacts a blood vessel wall of the celiac artery.

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