SYSTEM AND METHOD FOR CRIMPING A PROSTHETIC VALVE

    公开(公告)号:US20220287833A1

    公开(公告)日:2022-09-15

    申请号:US17825071

    申请日:2022-05-26

    Abstract: Embodiments of a crimping device for crimping a radially expandable and compressible prosthetic valve are disclosed. A crimping device can comprise a housing configured to receive a prosthetic valve in a radially expanded state. The housing member can include a funnel segment and an outlet in communication with the funnel segment. The crimping device can further comprise an actuator rotatably coupled to the housing, wherein rotation of the actuator relative to the housing causes the prosthetic valve to move axially through the funnel segment such that at least a portion of the prosthetic valve compresses radially by engagement with the funnel segment and exits the crimping device via the outlet.

    MULTI-PORTION REPLACEMENT HEART VALVE PROSTHESIS

    公开(公告)号:US20200297481A1

    公开(公告)日:2020-09-24

    申请号:US16843122

    申请日:2020-04-08

    Abstract: A replacement mitral valve prosthesis includes a support structure and a valve body having three flexible leaflets. The support structure preferably includes an internal valve frame and an external sealing frame. The valve frame supports the flexible leaflets. The sealing frame is adapted to conform to the shape of the native mitral valve annulus. The sealing frame may be coupled to an inlet end of the valve frame, an outlet end of the valve frame, or both. A plurality of anchors is coupled to the outlet end of the valve frame. The anchors extend radially outwardly for placement behind native leaflets. The prosthesis preferably includes a skirt disposed along an exterior of the external sealing frame. The prosthesis is collapsible for delivery into the heart via a delivery catheter. The prosthesis is configured to self-expand for deployment in the heart when released from the delivery catheter.

    PROSTHETIC HEART VALVE THAT REDUCES NATIVE ANNULUS

    公开(公告)号:US20250107892A1

    公开(公告)日:2025-04-03

    申请号:US18981479

    申请日:2024-12-14

    Abstract: A prosthetic heart valve configured to be expanded within a native valve annulus, engage surrounding tissue, and constricted tissue inward to enhance contact between the tissue and the valve. The heart valve may have a structural valve stent with an outer constricting structure having tissue-engaging members or anchors. The constricting structure may be intrinsic or extrinsic. One intrinsic version includes a plurality of arms that are arranged to constrict inward toward a central valve portion, or a fabric structure with tissue anchors and surrounding an inner valve member may be cinched to pull the tissue inward. The anchors may engage tissue around the annulus in the atrium, or surround leaflets in the ventricle, or grasp leaflets from within.

    System and method for crimping a prosthetic valve

    公开(公告)号:US11344409B2

    公开(公告)日:2022-05-31

    申请号:US16851959

    申请日:2020-04-17

    Abstract: Embodiments of a crimping device for crimping a radially expandable and compressible prosthetic valve are disclosed. A crimping device can comprise a housing configured to receive a prosthetic valve in a radially expanded state. The housing member can include a funnel segment and an outlet in communication with the funnel segment. The crimping device can further comprise an actuator rotatably coupled to the housing, wherein rotation of the actuator relative to the housing causes the prosthetic valve to move axially through the funnel segment such that at least a portion of the prosthetic valve compresses radially by engagement with the funnel segment and exits the crimping device via the outlet.

    STEERABLE DELIVERY SYSTEM AND COMPONENTS

    公开(公告)号:US20210401575A1

    公开(公告)日:2021-12-30

    申请号:US17469817

    申请日:2021-09-08

    Abstract: Devices, systems and methods are described herein to provide improved steerability for delivering a prosthesis to a body location, for example, for delivering a replacement valve to a native valve location in a heart. Disclosed are a number of features that can improve steerability or release of the prosthesis into the body location. In one preferred delivery system, a proximal handle can be manipulated to apply tension to a pair of diametrically opposed axial runner wires extending through lumens in a wall of a flexible tubular shaft. By applying tension to a pair of axial runner wires, the tubular shaft can be stiffened along a plane extending substantially through the pair of axial runner wires, while the shaft is permitted to freely bend in a perpendicular plane. This feature advantageously provides the ability to adjust the steerability and flexibility of a tubular shaft to meet the requirements of a particular procedure.

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