DEVICES, SYSTEMS, AND METHODS FOR CLAMPING A LEAFLET OF A HEART VALVE

    公开(公告)号:US20230233324A1

    公开(公告)日:2023-07-27

    申请号:US18131263

    申请日:2023-04-05

    CPC classification number: A61F2/2457 A61F2220/0016

    Abstract: The present disclosure relates generally to the field of medical devices for clamping a leaflet of a heart valve. In particular, the present disclosure relates to medical devices, systems, and methods for delivering artificial chordae tendineae in a patient. In an embodiment, a system may include a clamp having a plurality of arms at a first end. The plurality of arms may have a closed configuration in which the arms are oriented toward each other, and an open configuration in which the arms are oriented away from each other. A spring portion may be coupled to the plurality of arms at a second end that is configured to bias the arms to the closed configuration. The arms of the clamp may be configured to fixedly engage with a leaflet of the heart valve. The second end of the clamp may be configured to couple to an artificial chordae tendineae.

    PUNCTURE DEVICES, AND SYSTEMS AND METHODS FOR ACCESSING TISSUE

    公开(公告)号:US20190255285A1

    公开(公告)日:2019-08-22

    申请号:US16279536

    申请日:2019-02-19

    Abstract: Tissue puncture devices, and systems and methods for accessing tissue (e.g., cardiovascular tissue) according to the present disclosure may include a tubular sheath extending along a longitudinal axis, the tubular sheath having a proximal end and a distal end, a needle disposed coaxially in the sheath, the needle having a proximal end and a distal end and being movable along the longitudinal axis of sheath, and a needle control mechanism disposed at the proximal end of the needle, the needle control mechanism being configured to lock the distal end of the needle in a first position retracted within the distal end of the sheath, and release the needle to an unlocked second position such that the distal end of the needle is extendable beyond the distal end of the sheath.

    EMBOLIC PROTECTION DEVICE
    19.
    发明申请

    公开(公告)号:US20180206970A1

    公开(公告)日:2018-07-26

    申请号:US15821192

    申请日:2017-11-22

    CPC classification number: A61F2/01 A61F2/013 A61F2220/0008

    Abstract: An aortic arch embolic protection device may include an anchoring structure including a first anchoring ring at an upstream end and a second anchoring ring at a downstream end. A first filter element may extend from the first anchoring ring to the second anchoring ring and define a lumen through the aortic arch embolic protection device. A second filter element may be disposed within the lumen of the first filter element, wherein the second filter element includes an access port configured to facilitate passage of an interventional catheter through the access port. The anchoring structure may include a tubular scaffold extending from the first anchoring ring to the second anchoring ring. The second filter element may extend from the second anchoring ring upstream to the access port. The second filter element may extend transversely across the lumen of the first filter element at a plurality of axial locations.

    ABLATION CATHETER WITH CUT ELECTRODE

    公开(公告)号:US20250090226A1

    公开(公告)日:2025-03-20

    申请号:US18885308

    申请日:2024-09-13

    Abstract: A catheter for ablating cardiac tissue through irreversible electroporation includes a tubular shaft and an electrode assembly extending distally from a tubular shaft. The electrode assembly defines a distally located flexible central hub portion and flexible splines. A distal ablation electrode includes a hub portion and ablation electrode radial segments. Each ablation electrode radial segment includes a first series of gaps and a second series of gaps. The first series of gaps are spaced from one another along a length of the ablation electrode radial segment and extend partially across the width of the ablation electrode radial segment from a first longitudinal side toward a second longitudinal side. The second series of gaps are spaced from one another along the length of the ablation electrode radial segment and extend partially across the width of the ablation electrode radial segments from the second longitudinal side toward the first longitudinal side.

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