Catheter and hydrophilic, friction-reducing coating thereon
    1.
    发明授权
    Catheter and hydrophilic, friction-reducing coating thereon 失效
    导管和亲水性,减摩擦涂层

    公开(公告)号:US5041100A

    公开(公告)日:1991-08-20

    申请号:US345102

    申请日:1989-04-28

    IPC分类号: A61L29/08 A61L29/16 A61M25/00

    摘要: A friction-reducing coating may be applied to a base material, for example the outer surface of a catheter, to provide a significant reduction in catheter friction, particularly when the friction-reducing coating is hydrated. The coating comprises an intimate mixture of a structural plastic material, for example polyurethane, and high molecular weight poly(ethylene oxide).

    摘要翻译: 减少摩擦的涂层可以施加到基底材料,例如导管的外表面上,以提供显着降低的导管摩擦,特别是当摩擦减小涂层水合时。 涂层包括结构塑料材料(例如聚氨酯)和高分子量聚(环氧乙烷)的紧密混合物。

    Retrievable drug delivery stent
    2.
    发明授权
    Retrievable drug delivery stent 失效
    可回收药物输送支架

    公开(公告)号:US5882335A

    公开(公告)日:1999-03-16

    申请号:US608850

    申请日:1996-02-29

    摘要: The drug delivery stent assembly includes a hollow tubular wire stent which extends in a path defining a generally cylindrical envelope and which has side walls facing outwardly of the cylindrical envelope with holes therein for delivery of liquid to a site in a vessel where the stent is placed. The method for delivering a liquid solution to the interior wall surface of a vessel using the hollow tubular wire stent comprises: placing the stent on a balloon of a balloon on a wire guidewire or on a balloon catheter; inserting the stent on the balloon assembly at a desired site in a vessel; causing the balloon to expand the stent to a larger cylindrical shape; supplying liquid with a liquid supply source to the stent prior to or after placement of the stent so that liquid can be delivered from the outer holes in the stent to the site of placement of the stent in a vessel; disengaging the liquid supply source from the stent prior to or after placement of the stent in a vessel; and allowing the liquid solution to leak from the stent through the outwardly facing holes in the stent.

    摘要翻译: 药物递送支架组件包括中空管状线支架,其以限定大致圆柱形外壳的路径延伸,并且其侧壁面向圆柱形外壳的外侧,其中具有孔,用于将液体输送到放置支架的容器中的位置 。 使用中空管状钢丝支架将液体溶液输送到血管内壁表面的方法包括:将支架放置在气球导管或球囊导管上的球囊上; 将所述支架插入所述球囊组件的容器中的所需位置; 使气囊将支架膨胀成更大的圆柱形状; 在放置支架之前或之后将液体供应液体供应到支架,使得液体可以从支架的外孔输送到支架放置在容器中的位置; 在支架放置在容器中之前或之后将液体供应源与支架分离; 并且允许液体溶液从支架通过支架中向外的孔泄漏。

    MEDICAL DEVICE WITH COATING THAT PROMOTES ENDOTHELIAL CELL ADHERENCE AND DIFFERENTIATION
    4.
    发明申请
    MEDICAL DEVICE WITH COATING THAT PROMOTES ENDOTHELIAL CELL ADHERENCE AND DIFFERENTIATION 审中-公开
    具有促进内皮细胞粘附和分化的涂层的医疗装置

    公开(公告)号:US20130172988A1

    公开(公告)日:2013-07-04

    申请号:US13632611

    申请日:2012-10-01

    IPC分类号: A61L31/16 A61L31/08 A61L31/10

    摘要: Compositions and methods are provided for producing a medical device such as a stent, a stent graft, a synthetic vascular graft, heart valves, coated with a biocompatible matrix which incorporates antibodies, antibody fragments, or small molecules, which recognize, bind to and/or interact with a progenitor cell surface antigen to immobilize the cells at the surface of the device. The coating on the device can also contain a compound or growth factor for promoting the progenitor endothelial cell to accelerate adherence, growth and differentiation of the bound cells into mature and functional endothelial cells on the surface of the device to prevent intimal hyperplasia. Methods for preparing such medical devices, compositions, and methods for treating a mammal with vascular disease such as restenosis, artherosclerosis or other types of vessel obstructions are disclosed.

    摘要翻译: 提供组合物和方法用于生产诸如支架,支架移植物,合成血管移植物,心脏瓣膜的医疗装置,其包被生物相容性基质,其包含抗体,抗体片段或小分子,其识别,结合和/ 或与祖细胞表面抗原相互作用以将细胞固定在装置的表面。 器件上的涂层还可以含有用于促进祖细胞内皮细胞的化合物或生长因子,以加速结合细胞在装置表面上的成熟和功能性内皮细胞的粘附,生长和分化,以防止内膜增生。 公开了制备用于治疗诸如再狭窄,动脉粥样硬化或其它类型的血管障碍的血管疾病的哺乳动物的医疗装置,组合物和方法的方法。

    Electro-osmotic infusion catheter
    5.
    发明授权
    Electro-osmotic infusion catheter 失效
    电渗输液导管

    公开(公告)号:US5588961A

    公开(公告)日:1996-12-31

    申请号:US582328

    申请日:1996-01-05

    摘要: An infusion catheter is provided for delivering treatment fluids including medicaments, drugs, pharmaceuticals, cancer treatment agents and the like directly to a location within a living body such as within a vessel or body cavity. Electro-osmotic infusion is carried out by iontophoretic and/or iontohydrokinesis procedures. The infusion catheter includes both an internal electrode and an integral electrode, both of which are components of or closely associated with a distal portion of the catheter itself. When electrically joined to an EMF source, the electrodes are oppositely charged. The treatment fluid or components of the treatment fluid have an electrical charge which is the same as the internal electrode, as a result of which the medicament moves away from the internal electrode and to the body component being treated.

    摘要翻译: 提供输液导管,用于将包括药物,药物,药物,癌症治疗剂等的治疗流体直接输送到诸如容器或体腔内的活体内的位置。 电离渗透是通过离子电渗和/或离子动力学过程进行的。 输注导管包括内部电极和整体电极,两者都是导管本身的远端部分或紧密相关的部件。 当电连接到EMF源时,电极相反地带电。 处理流体或处理流体的组分具有与内部电极相同的电荷,其结果是药物从内部电极移动到被处理的身体部件。

    Method for delivering a liquid solution to the interior wall surface of
a vessel
    8.
    发明授权
    Method for delivering a liquid solution to the interior wall surface of a vessel 失效
    将液体溶液输送到容器的内壁表面的方法

    公开(公告)号:US5902266A

    公开(公告)日:1999-05-11

    申请号:US87873

    申请日:1998-06-01

    摘要: The drug delivery stent assembly includes a hollow tubular wire stent which extends in a path defining a generally cylindrical envelope and which has side walls facing outwardly of the cylindrical envelope with holes therein for delivery of liquid to a site in a vessel where the stent is placed. The method for delivering a liquid solution to the interior wall surface of a vessel using the hollow tubular wire stent comprises: placing the stent on a balloon of a balloon on a wire guidewire or on a balloon catheter; inserting the stent on the balloon assembly at a desired site in a vessel; causing the balloon to expand the stent to a larger cylindrical shape; supplying liquid with a liquid supply source to the stent prior to or after placement of the stent so that liquid can be delivered from the outer holes in the stent to the site of placement of the stent in a vessel; disengaging the liquid supply source from the stent prior to or after placement of the stent in a vessel; and allowing the liquid solution to leak from the stent through the outwardly facing holes in the stent.

    摘要翻译: 药物递送支架组件包括中空管状线支架,其以限定大致圆柱形外壳的路径延伸,并且其侧壁面向圆柱形外壳的外侧,其中具有孔,用于将液体输送到放置支架的容器中的位置 。 使用中空管状钢丝支架将液体溶液输送到血管内壁表面的方法包括:将支架放置在气球导管或球囊导管上的球囊上; 将所述支架插入所述球囊组件的容器中的所需位置; 使气囊将支架膨胀成更大的圆柱形状; 在放置支架之前或之后将液体供应液体供应到支架,使得液体可以从支架的外孔输送到支架放置在容器中的位置; 在支架放置在容器中之前或之后将液体供应源与支架分离; 并且允许液体溶液从支架通过支架中向外的孔泄漏。

    Biocompatible metal surfaces
    9.
    发明授权
    Biocompatible metal surfaces 失效
    生物相容的金属表面

    公开(公告)号:US5356433A

    公开(公告)日:1994-10-18

    申请号:US147017

    申请日:1993-11-03

    摘要: Metallic surfaces of medical devices or components of medical devices are provided that have enhanced biocompatibility properties. The surfaces are prepared by a two-step procedure including covalently linking an organosilane having amine reactive sites with the surface of the metallic member, typically through a metal oxide thereof. Thereafter, a biologically active agent is covalently linked to the organosilane coating. The two-step process is particularly advantageous for preparing medical devices in the form of stents which need to be bent and flexed during implantation procedures.

    摘要翻译: 提供具有增强的生物相容性的医疗装置或医疗装置的部件的金属表面。 表面通过两步法制备,包括将具有胺反应性位点的有机硅烷通常通过金属氧化物与金属构件的表面共价连接。 此后,生物活性剂与有机硅烷涂层共价连接。 两步法对于在植入过程中需要弯曲和弯曲的支架形式制备医疗装置是特别有利的。

    Treatment of metallic surfaces using radiofrequency plasma deposition
and chemical attachment of bioactive agents
    10.
    发明授权
    Treatment of metallic surfaces using radiofrequency plasma deposition and chemical attachment of bioactive agents 失效
    使用射频等离子体沉积和生物活性剂的化学附着处理金属表面

    公开(公告)号:US5336518A

    公开(公告)日:1994-08-09

    申请号:US989105

    申请日:1992-12-11

    IPC分类号: A61L33/00 A61F2/00 A61M23/00

    摘要: A treatment for metallic surfaces and devices having metallic surfaces is described. A film of heptafluorobutylmethacrylate (HFBMA) is applied to a surface by radiofrequency (RF) plasma deposition and subsequently treated with a biologically active agent. A water vapor RF plasma treatment of the HFBMA coating provides reactive groups thereon which can covalently bond to the biologically active agent. Alternatively, a spacer group can be bonded to the activated HFBMA and the biologically active agent can then be bonded to the spacer group. Devices coated according to the invention possess enhanced biocompatibility and the HFBMA coatings are durable even under severe crimping and expansion conditions.

    摘要翻译: 描述了具有金属表面的金属表面和装置的处理。 通过射频(RF)等离子体沉积将七氟丁基甲基丙烯酸酯(HFBMA)的膜施加到表面,随后用生物活性剂处理。 HFBMA涂层的水蒸汽RF等离子体处理在其上提供可共价键结合到生物活性剂上的反应性基团。 或者,可以将间隔基团结合到活化的HFBMA上,然后将生物活性剂与间隔基团结合。 根据本发明涂覆的装置具有增强的生物相容性,即使在严重的卷曲和膨胀条件下,HFBMA涂层也是耐用的。