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    • 84. 发明申请
    • Localized drug delivery using drug-loaded nanocapsules
    • 使用载药纳米胶囊的局部药物递送
    • US20050129727A1
    • 2005-06-16
    • US10768388
    • 2004-01-30
    • Jan WeberSamuel Robaina
    • Jan WeberSamuel Robaina
    • A61F2/00A61K20060101A61K9/50A61K38/17A61K49/18A61L27/54A61L29/16A61L31/16A61N1/00C12N9/99C12Q1/68
    • B82Y5/00A61F2210/009A61K9/5094A61K47/6923A61L27/54A61L29/16A61L31/16A61L2300/624Y10S977/81Y10S977/906
    • Nanocapsules are disclosed which comprise (a) a drug-containing core and (b) a polyelectrolyte multilayer encapsulating the drug-containing core. The nanocapsules include particles whose largest dimension typically ranges between 50 nm to 10000 nm. In some embodiments, the nanocapsules contain a single drug. In others, the nanocapsules contain multiple drugs, either within the same nanocapsules or within separate populations of nanocapsules. In some embodiments, the nanocapsules comprise surfaces that are functionalized, for example, with ligands that allow for attachment to bodily tissue. In some embodiments of the present invention, the nanocapsules are rendered magnetic or are rendered susceptible to magnetic fields. Also disclosed is a drug delivery method that comprises the steps of (a) providing nanocapsules such as those above; and (b) placing the nanocapsules at a desired location within the body of a subject using an implantable or insertable medical device.
    • 公开了纳米胶囊,其包含(a)含药物核心和(b)包封药物核心的聚电解质多层。 纳米胶囊包括最大尺寸通常在50nm至10000nm之间的颗粒。 在一些实施方案中,纳米胶囊含有单一药物。 在其他方面,纳米胶囊含有多种药物,无论是在相同的纳米胶囊内还是在分开的纳米胶囊内。 在一些实施方案中,纳米胶囊包含官能化的表面,例如具有允许附着于身体组织的配体。 在本发明的一些实施方案中,纳米胶囊被磁化或变得易受磁场影响。 还公开了药物递送方法,其包括以下步骤:(a)提供如上所述的纳米胶囊; 和(b)使用可植入或可插入的医疗装置将纳米胶囊放置在受试者体内的期望位置。
    • 88. 发明授权
    • Balloon catheter with lobed balloon and method for manufacturing such a
catheter
    • 气囊导管带有裂片气囊和制造这种导管的方法
    • US5759172A
    • 1998-06-02
    • US629720
    • 1996-04-09
    • Jan WeberJohannes Gerardus Maria Van Muiden
    • Jan WeberJohannes Gerardus Maria Van Muiden
    • A61F2/958A61M25/00A61M29/02A61M29/00
    • A61M25/1029A61M25/1002A61M25/1038A61M2025/1072A61M25/0043A61M25/104
    • The invention relates to a catheter comprising a tube-like basic body with a proximal and a distal end and an expandable balloon member arranged close to the distal end to the basic body. The balloon member comprises a number of relatively stiff sections extending on a small diameter in a longitudinal direction of the basic body and relatively pliable sections extending inbetween, wherein the relatively pliable sections form lobes in an expanded state of the balloon member. The invention furthermore relates to a method for manufacturing a catheter according to the invention, wherein a piece of tube-like basic material is provided and, by blow molding, a balloon member is made in a mold, which is arranged to the bias material. The balloon member is manufactured in the mold cavity of a mold, the cross-section of which is lobated, by receiving a tube-like partial manufacture inside it and deforming it by blow molding into a shape corresponding to that of the shape of the mold cavity.
    • 本发明涉及一种导管,其包括具有近端和远端的管状基体,以及靠近基体的远端设置的可膨胀气囊构件。 球囊构件包括在基体的纵向方向上以小直径延伸的多个相对刚性的部分和在其间延伸的相对柔韧的部分,其中相对柔韧的部分形成为球囊构件的展开状态的凸角。 本发明还涉及一种根据本发明的制造导管的方法,其中提供了一块管状基材,并且通过吹塑成型,将气囊构件制成设置在偏置材料上的模具中。 气囊构件通过在其内部容纳管状的部分制造而在模具的模腔中制造,其横截面为叶形,并通过吹塑成型为与模具形状相对应的形状 腔。