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    COMPRESSIBLE HEART VALVE ANNULUS SIZING TEMPLATES
    42.
    发明申请
    COMPRESSIBLE HEART VALVE ANNULUS SIZING TEMPLATES 有权

    公开(公告)号：US20220117738A1

    公开(公告)日：2022-04-21

    申请号：US17645940

    申请日：2021-12-23

    Applicant: Edwards Lifesciences Corporation

    Inventor： Matthew T. Winston ,  Da-Yu Chang ,  Louis A. Campbell ,  James A. Davidson

    IPC: A61F2/24

    Abstract: Compressible heart valve annulus sizing templates suitable for minimally-invasive or otherwise reduced accessibility surgeries. The sizing templates may be folded, rolled, or otherwise compressed into a reduced configuration for passage through an access tube or other such access channel. Once expelled from the access tube the sizing templates expand to their original shape for use in sizing the annulus. The templates may be formed of an elastomeric polymer material such as silicone, a highly elastic metal such as NITINOL, or both. Grasping tabs or connectors for handles permit manipulation from outside the body. A NITINOL wireform may be compressed for passage through an access tube and expelled from the distal end thereof into a cloth cover to assume a sizer shape.

    METHOD FOR CATHETER-BASED CLUTCHED HEART VALVE SIZER
    45.
    发明申请
    METHOD FOR CATHETER-BASED CLUTCHED HEART VALVE SIZER 审中-公开

    公开(公告)号：US20200069221A1

    公开(公告)日：2020-03-05

    申请号：US16586807

    申请日：2019-09-27

    Applicant: Edwards Lifesciences Corporation

    Inventor： Brian S. Conklin ,  Da-Yu Chang

    IPC: A61B5/107 ,  A61B5/00 ,  A61B5/02 ,  A61F2/24

    Abstract: A valve sizer for determining an appropriate replacement valve size when performing a heart valve replacement procedure is provided. In one version the valve sizer has a hollow shaft with proximal and distal ends. A movable sizing element couples to the distal end of the shaft and is radially expandable between first, contracted and second, expanded positions. An actuator assembly on a handle includes an actuator coupled to a clutch member via a ball-spring-detent clutch. A rod extends through the shaft and maintains a fixed distance between the handle and a distal hub in the sizing element. Movement of the actuator causes axial movement of the shaft, thereby causing radial expansion of sizing petals relative to the hub. The clutch slips when a predetermined reaction force from the surrounding valve annulus is met by the petals.

    Holder and deployment system for surgical heart valves
    46.
    发明授权
    Holder and deployment system for surgical heart valves 有权

    公开(公告)号：US10307249B2

    公开(公告)日：2019-06-04

    申请号：US15451203

    申请日：2017-03-06

    Applicant: Edwards Lifesciences Corporation

    Inventor： Da-Yu Chang ,  Hilda Z. Fann

    IPC: A61F2/24

    Abstract: A holder for a hybrid heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The hybrid heart valve includes a non-expandable, non-compressible prosthetic valve and a self-expandable anchoring stent, thereby enabling attachment to the annulus without sutures. A first suture connects the holder to the valve and constricts an inflow end of the anchoring stent. A second suture connects the holder to the valve and extends down three holder legs to loop through fabric on the valve. Both sutures may loop over a single cutting well on the holder so that severing the first and second sutures at the single cutting well simultaneously releases the tension in the first suture, permitting the inflow end of the anchoring stent to expand, and disconnects the valve holder from the prosthetic heart valve.

    Expandable surgical heart valve indicators
    47.
    发明授权
    Expandable surgical heart valve indicators 有权

    公开(公告)号：US10130469B2

    公开(公告)日：2018-11-20

    申请号：US15617906

    申请日：2017-06-08

    Applicant: Edwards Lifesciences Corporation

    Inventor： Jessica Guttenberg ,  Da-Yu Chang ,  Derrick Johnson ,  Brian S. Conklin ,  Qinggang Zeng ,  Myron Howanec ,  Grace Myong Kim

    IPC: A61F2/24

    Abstract: A prosthetic heart valve configured to replace a native heart valve and for post-implant expansion and having a valve-type indicator thereon visible from outside the body post-implant. The indicator communicates information about the valve, such as the size or orifice diameter of the valve, and/or that the valve has the capacity for post-implant expansion. The indicator can be an alphanumeric symbol or other symbol or combination of symbols that represent information about the characteristics of the valve such as the valve size. The capacity for post-implant expansion facilitates a valve-in-valve procedure, where the valve-type indicator conveys information to the surgeon about whether the implanted valve is suitable for the procedure and informs the choice of the secondary valve.

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