Artificial valve prosthesis with improved flow dynamics
    51.
    发明授权
    Artificial valve prosthesis with improved flow dynamics 有权
    具有改善流动动力学的人造瓣膜假体

    公开(公告)号:US07618447B2

    公开(公告)日:2009-11-17

    申请号:US10828716

    申请日:2004-08-30

    IPC分类号: A61F2/06 A61F2/24

    摘要: An expandable venous valve having a support structure that configured to enlarge the area adjacent to the valve structure such that the flow patterns of retrograde flow are modified in a way that facilitates the flushing of the pockets at the base of the valve area to prevent stagnation of bodily fluid, which in the venous system, can lead to thrombus formation. The enlarged pocket areas can be created by forming an artificial sinus adjacent the valve structure in an unsupported section of vessel wall between two support frame section or the support frame can comprise an expanded-diameter intermediate or proximal section that forms an artificial sinus adjacent the valve structure. In another group of embodiments, the attachment pathway between opposing leaflets and the support frame and/or vessel wall comprises a proximal portion that places the leaflets in extended contact with one another and a distal portion forms a large angle with respect to the adjacent walls such that a large pocket is created at the base of the leaflets. In one embodiment, the attachment pathway extends distally along a pair of substantially parallel longitudinal attachment struts to create an extended leaflet contact area, then angles circumferentially and distally from the former along distal attachment struts to define the bottom edge of the leaflets.

    摘要翻译: 一种可膨胀静脉瓣,其具有支撑结构,该支撑结构被配置为扩大邻近阀结构的区域,使逆行流的流动模式以便于冲洗瓣膜区域底部的口袋的方式进行改变,以防止滞留 在静脉系统中的体液可导致血栓形成。 扩大的口袋区域可以通过在两个支撑框架部分之间的容器壁的无支撑部分中形成邻近阀结构的人造窦来形成,或者支撑框架可以包括形成邻近瓣膜的人造窦的扩张直径的中间或近端部分 结构体。 在另一组实施例中,相对的小叶与支撑框架和/或血管壁之间的附接通路包括将小叶彼此延伸接触的近端部分,并且远侧部分相对于相邻壁形成大角度, 在传单的底部创造了一个大口袋。 在一个实施例中,附接通道沿着一对基本上平行的纵向连接支柱向远侧延伸,以产生延伸的小叶接触区域,然后沿着远侧连接支柱沿着周向和远端远离成形器,以限定传单的底部边缘。

    Prosthesis adapted for placement under external imaging
    55.
    发明授权
    Prosthesis adapted for placement under external imaging 有权
    假体适应放置在外部成像

    公开(公告)号:US08157810B2

    公开(公告)日:2012-04-17

    申请号:US10787307

    申请日:2004-02-26

    IPC分类号: A61F11/00

    摘要: A expandable prosthesis having an imageable structure comprising one or more elements visually distinguishable by an external (e.g., radiographic or ultrasonic) imaging system, the structure being located about a first axis that corresponds to a structural feature of the prosthesis that is configured to perform a specific function particular to that axis. The imageable structure is configured to assist in the rotational orientation of the prosthesis during placement within the implantation site. In one embodiment, the prosthesis comprises a venous valve that includes imageable elements or structure, such as a pair of radiopaque markers, that defines the orifice of the valve structure such that the orifice can be oriented with a particular anatomical feature under imaging, such as to align the orifice with the long axis of the vessel. In another embodiment, the imageable structure is configured to permit an aperture located about a stent graft to be oriented with a anatomical feature of the vessel, such as a branch vessel opening. The invention includes a method for using imageable structure to confirm that the orientation of the prosthesis within a delivery apparatus is consistent the desired delivery approach to be used.

    摘要翻译: 一种具有可成像结构的可扩张假体,其包括可由外部(例如,射线照相或超声)成像系统在视觉上区分的一个或多个元件,所述结构围绕与假体的结构特征对应的第一轴定位,所述第一轴构造成执行 特定于该轴的特定功能。 可成像结构构造成在放置在植入部位期间有助于假体的旋转取向。 在一个实施例中,假体包括静脉瓣,其包括可成像元件或结构,例如一对不透射线的标记,其限定瓣膜结构的孔,使得孔可以在成像下具有特定解剖特征,例如 以将孔与容器的长轴对准。 在另一个实施例中,可成像结构被配置为允许围绕支架移植物定位的孔与容器的解剖特征(例如分支血管开口)定向。 本发明包括一种使用可成像结构来确认假体在输送装置内的取向与所要使用的输送方法一致的方法。

    Methods and systems for modifying vascular valves
    56.
    发明授权
    Methods and systems for modifying vascular valves 有权
    改变血管瓣膜的方法和系统

    公开(公告)号:US07833267B2

    公开(公告)日:2010-11-16

    申请号:US12257720

    申请日:2008-10-24

    IPC分类号: A61F2/24

    摘要: Described are methods and systems for modifying vascular valves in order to reduce retrograde blood flow through the valves. Preferred methods include connecting vascular valve leaflets with at least one remodelable material, such that the valve leaflets become fused by the ingrowth of the patient's native tissue. Preferred remodelable materials include collagenous extracellular matrix material, such as small intestine submucosa.

    摘要翻译: 描述了用于修改血管瓣膜以减少通过瓣膜的逆行血流量的方法和系统。 优选的方法包括将血管瓣叶与至少一种可重塑材料连接,使得瓣膜小叶通过患者的天然组织的向内生长而变得熔化。 优选的可重塑材料包括胶原细胞外基质材料,例如小肠粘膜下层。

    METHOD OF IMPLANTING A PROSTHETIC VALVE
    57.
    发明申请
    METHOD OF IMPLANTING A PROSTHETIC VALVE 审中-公开
    植入预制阀的方​​法

    公开(公告)号:US20100063577A1

    公开(公告)日:2010-03-11

    申请号:US12621214

    申请日:2009-11-18

    IPC分类号: A61F2/06 A61F2/82

    摘要: Methods of implanting a prosthetic valve in a body vessel are provided. A first expandable frame member is delivered to and deployed at a point of treatment in a body vessel. A second expandable frame member is delivered to the point of treatment. The second expandable frame member has an attached graft member that forms a valve adapted to permit fluid flow through the body vessel in a first direction and to substantially prevent fluid flow through the body vessel in a second, opposite direction. After deployment of the first expandable frame member, the second expandable frame member is deployed at the point of treatment such that the second frame member is positioned radially inward of the first frame member within said body vessel to form a prosthetic valve.

    摘要翻译: 提供了将人造瓣植入人体容器中的方法。 第一可膨胀框架构件被输送到身体容器中并在其处处被部署。 第二可膨胀框架构件被输送到处理点。 第二可膨胀框架构件具有附接的移植构件,其形成适于允许流体沿第一方向流过身体容器的阀,并且基本上防止流体沿第二相反方向流过身体容器。 在展开第一可膨胀框架构件之后,第二可膨胀框架构件在处理点处展开,使得第二框架构件位于所述主体容器内的第一框架构件的径向内侧以形成人造瓣膜。

    PROSTHETIC VALVE WITH VESSEL ENGAGING MEMBER
    58.
    发明申请
    PROSTHETIC VALVE WITH VESSEL ENGAGING MEMBER 审中-公开
    具有船舶参与成员的前置阀

    公开(公告)号:US20100057201A1

    公开(公告)日:2010-03-04

    申请号:US12616518

    申请日:2009-11-11

    IPC分类号: A61F2/24

    摘要: Medical devices for implantation in a body vessel are provided. Each medical device comprises a main body, a valve, and a vessel engaging member. The vessel engaging member is disposed on an outer surface of the main body. Kits including a plurality of vessel engaging members for use with one or more valve members are also provided. The vessel engaging members have varying radial dimensions, allowing assembly of medical devices having varying radial dimensions. Methods of treating a patient using medical devices according to the invention are also provided.

    摘要翻译: 提供用于植入体内的医疗装置。 每个医疗装置包括主体,阀和容器接合构件。 容器接合构件设置在主体的外表面上。 还提供了包括与一个或多个阀构件一起使用的多个容器接合构件的套件。 容器接合构件具有变化的径向尺寸,允许组装具有变化径向尺寸的医疗装置。 还提供了使用根据本发明的医疗装置治疗患者的方法。

    Prosthetic valve devices and methods of making such devices
    60.
    发明授权
    Prosthetic valve devices and methods of making such devices 有权
    假体瓣膜装置及其制造方法

    公开(公告)号:US07153324B2

    公开(公告)日:2006-12-26

    申请号:US10909153

    申请日:2004-07-30

    IPC分类号: A61F2/06

    摘要: Prosthetic valve devices for implantation in body vessels, and methods of making same, are provided. The device has a main body with first and second ends and defining a lumen, with the second end being inverted into the lumen. A valve is disposed at the second end. In multiple valve devices, valves are disposed at the first and second ends, and individually may be inverted into the lumen. The prosthetic valve devices may further include a support structure such as a stent. Methods of making a prosthetic valve device include providing a main body having first and second ends and defining a lumen, forming a valve at the second end, and inverting the second end into the lumen. Methods may further comprise forming multiple valves and may also include attaching a support structure.

    摘要翻译: 提供用于植入体内血管的假体瓣膜装置及其制造方法。 该装置具有主体,其具有第一和第二端并且限定内腔,其中第二端被倒置成内腔。 阀设置在第二端。 在多个阀装置中,阀设置在第一和第二端处,并且可以单独地倒置到内腔中。 假体瓣膜装置还可以包括诸如支架的支撑结构。 制造假体瓣膜装置的方法包括提供具有第一和第二端并限定内腔的主体,在第二端处形成阀,并将第二端翻转成内腔。 方法还可以包括形成多个阀并且还可以包括附接支撑结构。