Anti-paravalvular leakage component for a transcatheter valve prosthesis

    公开(公告)号:US11690713B2

    公开(公告)日:2023-07-04

    申请号:US16891301

    申请日:2020-06-03

    Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments. The segments may be orthogonal or oblique to the outer surface of the tubular stent.

    Delivery system for deployment of medical devices

    公开(公告)号:US11166815B2

    公开(公告)日:2021-11-09

    申请号:US16442590

    申请日:2019-06-17

    Abstract: A catheter that comprises a sheath that is connected at opposing ends to concentric tubes that move relative to each other in a manner that alternatively covers and exposes a medical device loaded onto the catheter. A portion of the sheath is arranged so as to invert upon itself so that axial movement of one tube relative to the other simultaneously moves the inversion point over or away from the device, alternatively covering or exposing the device.

    CATHETER SHAFT WITH UNIFORM BENDING STIFFNESS CIRCUMFERENTIALLY

    公开(公告)号:US20210170141A1

    公开(公告)日:2021-06-10

    申请号:US16705318

    申请日:2019-12-06

    Inventor: Susheel DESHMUKH

    Abstract: A catheter shaft includes an inner layer defining an innermost circumferential surface of the catheter shaft and defining a lumen of the catheter shaft, and an outer layer defining an outermost circumferential surface of the catheter shaft. The inner layer is formed by a first polymer having a first durometer and a first melting temperature. The outer layer is formed by alternating first and second segments of the first polymer and a second polymer, respectively, that alternate in a circumferential direction. The second polymer has a second durometer softer than the first durometer and a second melting temperature lower than the first melting temperature. Each segment of the alternating first and second segments extend in an axial direction for substantially an entire length of the catheter shaft. A method of forming the catheter shaft via extrusion is also disclosed.

    Medical device delivery system and methods of delivering a medical device

    公开(公告)号:US10925727B2

    公开(公告)日:2021-02-23

    申请号:US15863944

    申请日:2018-01-07

    Abstract: A medical device delivery system can include a dilator including a tip having a taper in a distal direction, a coupler, and a flap that radially protrudes from the tip. The flap can be configured to bend against a body lumen to cover at least a portion of the delivery system when the dilator is tracked through the body lumen. A medical device delivery system can include a dilator including a tip having a lumen and a coupler having a lumen. The coupler can be configured to securely connect to the tip such that the lumen of the tip is aligned with the lumen of the coupler to allow a guide wire to pass therethrough. Methods for loading a medical device into a delivery catheter are also disclosed.

    ANTI-PARAVALVULAR LEAKAGE COMPONENT FOR A TRANSCATHETER VALVE PROSTHESIS

    公开(公告)号:US20200289262A1

    公开(公告)日:2020-09-17

    申请号:US16891301

    申请日:2020-06-03

    Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments. The segments may be orthogonal or oblique to the outer surface of the tubular stent.

    Visualization Device for Use With a Tray for Loading a Medical Device
    48.
    发明申请
    Visualization Device for Use With a Tray for Loading a Medical Device 审中-公开
    用于装载医疗设备的托盘的可视化设备

    公开(公告)号:US20160058522A1

    公开(公告)日:2016-03-03

    申请号:US14935589

    申请日:2015-11-09

    Abstract: A visualization device for use with a loading tray includes a frame comprising a floor, a first side wall extending generally perpendicular from the floor, and a second side wall extending generally perpendicular from the floor and spaced from the first side wall. The visualization device further includes a mirror abutting the floor of the frame. A magnifying glass may also be supported by top edges of the first and second side walls, or by runners coupled to the top edges of the first and second side walls. The visualization device may be slideably disposed in a reservoir of a loading tray.

    Abstract translation: 用于装载托盘的可视化装置包括框架,该框架包括地板,大体上垂直于地板延伸的第一侧壁以及从地板大致垂直延伸并与第一侧壁间隔开的第二侧壁。 可视化装置还包括邻接框架的底板的反射镜。 放大镜也可以由第一和第二侧壁的顶部边缘或由与第一和第二侧壁的顶部边缘联接的流道支撑。 可视化装置可以可滑动地设置在装载盘的贮存器中。

    Anti-Paravalvular Leakage Component for a Transcatheter Valve Prosthesis
    49.
    发明申请
    Anti-Paravalvular Leakage Component for a Transcatheter Valve Prosthesis 审中-公开
    用于经导管瓣假体的抗瓣膜渗漏组件

    公开(公告)号:US20140222144A1

    公开(公告)日:2014-08-07

    申请号:US13757380

    申请日:2013-02-01

    Abstract: A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments.

    Abstract translation: 经导管瓣膜假体包括可扩张管状支架,支架内的人工瓣膜,以及耦合到管状支架并围绕管状支架的抗瓣膜泄漏部件。 抗瓣膜泄漏部件包括径向可压缩的环形支架,其是自膨胀材料的正弦图案化环,以及在环形支架上延伸的不可渗透膜。 抗瓣膜泄漏部件具有扩张构造,其中环形支架的至少节段径向地远离管状支架。 或者,抗瓣膜泄漏部件包括多个自膨胀部分和联接到部分的内表面的环形密封元件。 抗瓣膜泄漏部件具有扩张构造,其中段部从径向远离管状支架弯曲,并且环形密封元件位于管状支架的外表面和段的内表面之间。

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