Biodegradable polymeric materials providing controlled release of hydrophobic drugs from implantable devices
    53.
    发明申请
    Biodegradable polymeric materials providing controlled release of hydrophobic drugs from implantable devices 审中-公开
    提供可植入式设备的疏水性药物的控制释放的可生物降解的聚合材料

    公开(公告)号:US20090110713A1

    公开(公告)日:2009-04-30

    申请号:US11982160

    申请日:2007-10-31

    摘要: The present invention is directed to polymeric materials (e.g., coatings) comprising biodegradable copolymers and implantable devices (e.g., drug-delivery stents) formed of such materials. The biodegradable copolymers are derived from at least two relatively polar monomers and at least one relatively nonpolar monomer. Incorporation of at least one relatively nonpolar monomer into the copolymer improves controlled release of a hydrophobic drug from the polymeric material by increasing the copolymer's miscibility with and permeability to the hydrophobic drug. The polymeric materials can also contain at least one biocompatible moiety, at least one non-fouling moiety, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric materials are designed to improve the mechanical, physical and biological properties of implantable devices formed thereof.

    摘要翻译: 本发明涉及包含由这种材料形成的可生物降解的共聚物和可植入装置(例如药物递送支架)的聚合物材料(例如包衣)。 可生物降解的共聚物衍生自至少两种相对极性的单体和至少一种相对非极性的单体。 将至少一种相对非极性的单体掺入共聚物中,通过增加共聚物与疏水性药物的混溶性和渗透性,可以改善疏水性药物从聚合物材料的受控释放。 聚合物材料还可含有至少一种生物相容部分,至少一种非结垢部分,至少一种生物有益材料,至少一种生物活性剂或其组合。 聚合材料被设计成改善由其形成的可植入装置的机械,物理和生物学特性。

    Catheter balloon having a porous layer with ridges
    55.
    发明授权
    Catheter balloon having a porous layer with ridges 有权
    导管球囊具有带脊的多孔层

    公开(公告)号:US07273471B1

    公开(公告)日:2007-09-25

    申请号:US10746621

    申请日:2003-12-23

    IPC分类号: A61M29/00 A61M31/00 A61M37/00

    CPC分类号: A61M25/1002 A61M2025/1004

    摘要: A balloon catheter having a balloon with a porous polymer layer and one or more filamentary members which are on or in the porous polymer layer and which form ridges protruding outwardly from a surface of the balloon in the inflated configuration. In a presently preferred embodiment, the balloon has a wingless noninflated configuration.

    摘要翻译: 一种球囊导管,其具有多孔聚合物层的球囊和一个或多个丝状构件,其位于多孔聚合物层中或多孔聚合物层中,并且形成在膨胀构型中从球囊表面向外突出的脊。 在目前优选的实施例中,球囊具有无翼无绒构型。

    Catheter balloon having a lubricious coating
    56.
    发明申请
    Catheter balloon having a lubricious coating 有权
    导管气球具有光滑的涂层

    公开(公告)号:US20070032760A1

    公开(公告)日:2007-02-08

    申请号:US11582580

    申请日:2006-10-18

    摘要: A balloon for a catheter and a method of making the balloon, having a layer of a porous polymeric material with a modified outer surface and a lubricious coating bonded to the modified outer surface. In one embodiment, the modified outer surface is formed by a polymer impregnated in the porous polymeric material, and the subsequently applied lubricious coating bonds to the impregnating polymer. In another embodiment, the modified outer surface is formed by a functionality deposited on the porous polymeric material which bonds to the subsequently applied lubricious coating. The modified outer surface provides an improved strong bond between the lubricious coating and the balloon, for improved catheter performance.

    摘要翻译: 用于导管的球囊和制造球囊的方法,具有一层具有改良的外表面的多孔聚合物材料和与修饰的外表面结合的润滑涂层。 在一个实施方案中,改性的外表面由浸渍在多孔聚合物材料中的聚合物形成,随后施加的润滑涂层与浸渍聚合物结合。 在另一个实施方案中,改性的外表面由沉积在多孔聚合物材料上的官能团形成,其结合到随后施加的光滑涂层上。 改进的外表面在光滑涂层和球囊之间提供改进的强结合,以改善导管性能。

    Method of making a catheter balloon using a tapered mandrel
    57.
    发明授权
    Method of making a catheter balloon using a tapered mandrel 失效
    使用锥形心轴制造导管球囊的方法

    公开(公告)号:US07025745B2

    公开(公告)日:2006-04-11

    申请号:US10266010

    申请日:2002-10-07

    IPC分类号: A61M31/00 A61M29/00 B29C49/08

    摘要: A method of making a catheter balloon, and a balloon catheter formed thereby, in which a layer of a catheter balloon is formed by decreasing the inner diameter of a first end section of a polymeric tube, so that the tube has a reduced diameter first end section with an inner diameter less than the inner diameter of a central section of the tube. The reduced diameter first end section of the tube is bonded to a catheter shaft to form at least a portion of a skirt section of the balloon, and the skirt section has an improved high rupture pressure.

    摘要翻译: 制造导管球囊的方法和由此形成的气囊导管,其中通过降低聚合物管的第一端部部分的内径而形成导管囊的层,使得管具有缩径的第一端 内径小于管中心部分的内径。 管的直径缩小的第一端部结合到导管轴以形成气囊的裙部的至少一部分,并且裙部具有改善的高破裂压力。

    Stent deploying catheter system
    60.
    发明授权
    Stent deploying catheter system 有权
    支架部署导管系统

    公开(公告)号:US06319259B1

    公开(公告)日:2001-11-20

    申请号:US09357697

    申请日:1999-07-20

    IPC分类号: A61F1100

    摘要: An intravascular catheter system for properly implanting a stent in a body lumen generally comprising a catheter having an elongated shaft with an inflatable balloon formed of compliant material and a stent mounted on the working length of the balloon. The balloon material is compliant within the working range of the balloon to provide substantial radial expansion. The wingless radially expansive balloon expands in a uniform manner, thereby producing uniform expansion and implantation of the stent.

    摘要翻译: 一种用于将支架适当地植入体腔内的血管内导管系统,其通常包括具有细长轴的导管,所述导管具有由顺应性材料形成的可膨胀气囊和安装在所述气囊的工作长度上的支架。 球囊材料在气球的工作范围内是柔顺的,以提供显着的径向膨胀。 无翼状径向膨胀气囊以均匀的方式膨胀,从而产生支架的均匀膨胀和植入。