Method and apparatus for coating balloon catheters
    21.
    发明授权
    Method and apparatus for coating balloon catheters 有权
    球囊导管涂敷方法及装置

    公开(公告)号:US09295820B2

    公开(公告)日:2016-03-29

    申请号:US12583112

    申请日:2009-08-14

    摘要: A coating apparatus for coating the balloon portion of a balloon catheter is described. The coating apparatus includes a rotatable member in which the catheter portion of the balloon catheter is mounted and fixed, and which causes rotation of the balloon catheter. The apparatus also includes a support member in which the distal tip of the catheter is inserted and free to rotate; and a spray nozzle directing sprayed material on the balloon surface. The inventive configuration of the coating apparatus allows the balloon catheter to be rotated along its axis with insubstantial or no wobble, which significantly improves the quality of the coating applied to the surface of the balloon.

    摘要翻译: 描述了一种用于涂覆球囊导管的球囊部分的涂覆装置。 涂覆装置包括可旋转构件,其中气囊导管的导管部分被安装和固定,并且引起气囊导管的旋转。 该装置还包括支撑构件,其中导管的远侧末端插入并自由旋转; 以及将喷射材料引导到气球表面上的喷嘴。 涂覆装置的本发明构造允许球囊导管沿着其轴线旋转,具有非实质或无摆动,这显着地改善了施加到气球表面的涂层的质量。

    Catheter assembly with guard
    24.
    发明授权
    Catheter assembly with guard 有权
    导管总成与守卫

    公开(公告)号:US08961457B2

    公开(公告)日:2015-02-24

    申请号:US13248462

    申请日:2011-09-29

    申请人: Ralph A. Chappa

    发明人: Ralph A. Chappa

    IPC分类号: A61M37/00 A61M25/10 A61M25/00

    摘要: A catheter assembly includes an expandable and collapsible structure having an outer surface. The expandable and collapsible structure is adapted to expand between a contracted state and a dilated state. A guard is bonded to the outer surface of the expandable and collapsible structure. The guard and the expandable and collapsible structure cooperatively define a plurality of reservoirs. A coating disposed in the reservoirs. The coating includes a bioactive agent. The coating protrudes from the reservoirs when the expandable and collapsible structure is expanded to the dilated state.

    摘要翻译: 导管组件包括具有外表面的可膨胀和可折叠结构。 可膨胀和可折叠结构适于在收缩状态和膨胀状态之间膨胀。 防护件结合到可膨胀和可折叠结构的外表面。 护罩和可膨胀和可折叠结构协同地限定了多个储存器。 设置在储存器中的涂层。 涂层包括生物活性剂。 当可膨胀和可折叠结构膨胀到膨胀状态时,涂层从储存器突出。

    Functionalized polysaccharides for active agent delivery
    26.
    发明授权
    Functionalized polysaccharides for active agent delivery 有权
    功能性多糖用于活性剂递送

    公开(公告)号:US08901092B2

    公开(公告)日:2014-12-02

    申请号:US13335724

    申请日:2011-12-22

    申请人: Joram Slager

    发明人: Joram Slager

    摘要: Embodiments of the invention include functionalized polysaccharides and compositions and structures including the same. In an embodiment, the invention includes an active agent delivery composition including a polysaccharide functionalized with a coupling group, wherein the polysaccharide lacks charged groups at a pH of between 6 and 8; and a complex comprising a nucleic acid and a transfection agent. In an embodiment, the invention includes an active agent delivery structure including a matrix comprising a polysaccharide covalently cross-linked through the residue of a coupling group on the polysaccharide, the polysaccharide lacking charged groups at a pH of between 6 and 8; and a nucleic acid delivery complex disposed within the active agent delivery structure. In an embodiment, the invention includes a material for medical applications including glycogen functionalized with coupling groups at a degree of substitution of between about 0.01 and 0.5. Other embodiments are also included herein.

    摘要翻译: 本发明的实施方案包括官能化多糖及包含其的组合物和结构。 在一个实施方案中,本发明包括活性剂递送组合物,其包含用偶联基团官能化的多糖,其中所述多糖在6至8的pH下缺少带电基团; 和包含核酸和转染剂的复合物。 在一个实施方案中,本发明包括活性剂递送结构,所述活性剂递送结构包括通过多糖上的偶联基团的残基共价交联的多糖的基质,pH在6至8之间缺少带电基团的多糖; 以及设置在活性剂递送结构内的核酸递送复合物。 在一个实施方案中,本发明包括用于医疗应用的材料,包括以约0.01至0.5的取代度的偶联基团官能化的糖原。 本文还包括其它实施例。

    Double wall catheter for delivering therapeutic agent
    29.
    发明授权
    Double wall catheter for delivering therapeutic agent 有权
    用于输送治疗剂的双壁导管

    公开(公告)号:US08668667B2

    公开(公告)日:2014-03-11

    申请号:US13339926

    申请日:2011-12-29

    申请人: Ralph A. Chappa

    发明人: Ralph A. Chappa

    IPC分类号: A61M29/00

    摘要: The present invention relates to a catheter assembly that can deliver a therapeutic composition. The catheter assembly can include an outer balloon with openings for releasing the therapeutic composition. When the catheter assembly is in its contracted state, the openings are closed, and the assembly retains the therapeutic composition. When the catheter assembly is in its dilated state, the openings are open, and the therapeutic composition is released. The present invention also includes methods of making and using such a catheter assembly.

    摘要翻译: 本发明涉及可递送治疗组合物的导管组件。 导管组件可以包括具有释放治疗组合物的开口的外球囊。 当导管组件处于其收缩状态时,开口关闭,并且组件保持治疗组合物。 当导管组件处于其扩张状态时,开口是开放的,并且治疗组合物被释放。 本发明还包括制造和使用这种导管组件的方法。