Stent grafts
    1.
    发明授权
    Stent grafts 有权
    支架移植

    公开(公告)号:US09243353B2

    公开(公告)日:2016-01-26

    申请号:US13357150

    申请日:2012-01-24

    摘要: Provided is a stent graft that has superior prevention of endoleakage due to being resistant to creasing, and has superior prevention of graft migration as a result of promoting cell infiltration into gaps among microfibers in a dispersed state and forming an integrated structure with the cells in the landing zone of the stent. The stent graft according to the present invention is a stent graft comprising a stent graft fabric that has microfiber bundles consisting essentially of microfilaments having a filament linear density of 0.5 dtex or less, and said microfiber bundles having a total linear density of 10 to 60 dtex/120 to 3000 filaments, for the warp and/or weft, and in which the porosity of the microfiber bundles is 30% to 95%, wherein said stent graft has said stent graft fabric being located in at least 1 cm range from the central end.

    摘要翻译: 提供一种支架移植物,其具有优异的防止由于抗皱纹而引起的内漏,并且由于促进细胞渗透到分散状态的微纤维之间的间隙中而形成与该细胞的整体结构的结果,具有优异的移植移植 支架着陆区。 根据本发明的支架移植物是一种支架移植物,其包括具有基本上由细丝线密度为0.5dtex以下的微丝组成的超细纤维束的支架移植物织物,所述超细纤维束的总线密度为10〜60dtex / 120至3000根长丝,用于经纱和/或纬纱,其中微纤维束的孔隙率为30%至95%,其中所述支架移植物具有所述支架移植物织物位于距中心至少1cm的范围内 结束。

    MEDICAL MATERIAL, ARTIFICIAL TOOTH ROOT, AND METHOD OF PRODUCING MEDICAL MATERIAL
    3.
    发明申请
    MEDICAL MATERIAL, ARTIFICIAL TOOTH ROOT, AND METHOD OF PRODUCING MEDICAL MATERIAL 审中-公开
    医用材料,人造牙根和生产医用材料的方法

    公开(公告)号:US20090215009A1

    公开(公告)日:2009-08-27

    申请号:US11816811

    申请日:2006-02-23

    CPC分类号: A61L27/12 A61L27/56

    摘要: [Problems] To provide a medical material having such a structure that enables even diffusion and distribution in the material of a sufficient amount a substance necessary for a medical treatment.[Means for Solving Problems] A medical material 10 composed of a porous three-dimensional construct 11, which is a rectangular parallelepiped having a porosity of from 20 to 97% and pores 12, 13, 14 and 15 provided in the main body. From this pore 12, a substance such as calcium phosphate or ceramics apatite and/or a physiologically active cell, tissue or protein and a substance suitable for exerting the functions thereof are introduced.

    摘要翻译: [问题]提供具有这样的结构的医疗材料,其能够在材料中均匀地扩散和分布足量的药物所需的物质。 解决问题的手段由主体中设置有孔隙率为20〜97%的长方体的多孔性三维构造体11和孔12,13,14,15组成的医疗用材料10。 从该孔12中,引入磷酸钙或陶瓷磷灰石等物质和/或生理活性细胞,组织或蛋白质以及适用于其功能的物质。

    Prosthesis containing bioabsorbable materials insolubilized without
chemical reagents and method of making the same
    4.
    发明授权
    Prosthesis containing bioabsorbable materials insolubilized without chemical reagents and method of making the same 失效
    含有不含化学试剂的生物可吸收材料的假体及其制造方法

    公开(公告)号:US5986168A

    公开(公告)日:1999-11-16

    申请号:US928752

    申请日:1997-09-12

    申请人: Yasuharu Noishiki

    发明人: Yasuharu Noishiki

    摘要: The present invention relates to a prosthesis comprising one or more bioabsorbable substances insolubilized and/or immobilized in place by a physical method which excludes chemical reagents. A growth factor can be bound to the bioabsorbable substance for simulating growth of, for example, fibroblast and endothelial cells, around and into the prosthesis. The invention can include a porous fabric substrate having the bioabsorbable substance(s) insolubilized and immobilized therewithin by one or more of the physical methods. The physical method can include entanglement, dry-up, thermal crosslinkng, gamma irradiation, ultraviolet irradiation, or swelling up by hyper hydration with electric charge. The invention excludes the use of conventional chemical reagents, such as glutaraldehyde or formaldehyde, which are toxic. Since the invention does not use the chemical reagents of the prior art, it can avoid the toxicity and foreign body reaction problems associated therewith. The prosthesis of the invention does not have blood leakage and provides an excellent antithrombogenicity by rapid completion of neointima formation with endothelial cell lining at an early stage after implantation.

    摘要翻译: 本发明涉及一种假体,其包含一种或多种通过不包括化学试剂的物理方法不溶化和/或固定在适当位置的生物可吸收物质。 生长因子可以结合生物可吸收物质,用于模拟假体周围的成纤维细胞和内皮细胞的生长。 本发明可以包括具有生物可吸收物质的多孔织物基质,所述生物可吸收物质通过一种或多种物理方法不溶解并固定在其中。 物理方法可以包括缠结,干燥,热交联,γ照射,紫外线照射或通过电荷高水合膨胀。 本发明不包括使用有毒的常规化学试剂如戊二醛或甲醛。 由于本发明不使用现有技术的化学试剂,因此可以避免与之相关的毒性和异物反应问题。 本发明的假体不具有血液渗漏,并且通过在植入后的早期快速完成与内皮细胞衬里的新内膜形成而提供优异的抗血栓形成。

    Production process of an antithrombogenic and antiadhesive material for
medical use
    5.
    发明授权
    Production process of an antithrombogenic and antiadhesive material for medical use 失效
    用于医疗用途的抗血栓形成和抗粘附材料的生产工艺

    公开(公告)号:US4690973A

    公开(公告)日:1987-09-01

    申请号:US885782

    申请日:1986-07-15

    CPC分类号: A61L33/0023 Y10S128/08

    摘要: This invention concerns a production process of an antithrombogenic and antiadhesive material which can favorably be used as artificial blood vessels, artificial valves, grafting patches for cardiovascular organs, artificial heart catheters and so on. The gist of this invention is constructed substantially of subjecting glycidyltrialkylammonium halide such as glycidyltrimethylammonium chloride to the reaction with a material comprising pure collagen or collagen and other components like mucopolysaccharide in order to introduce a cationic quaternary functional group in collagen molecules of the material and then subjecting heparin to the ionic combination with the cationic functional group introduced. Meanwhile, in advance of the above chemical treatment, the material is prepared from dog's blood vessel by removing proteins except collagen, from cow's Achilles tendon by crushing into powder, from human amnion by rinsing in distilled water or from polyester knit tube by coating its inside with powdered collagen, for example.

    摘要翻译: 本发明涉及可有利地用作人造血管,人造瓣膜,心血管器官接枝片,人造心导管等的抗血栓形成和抗粘附材料的生产方法。 本发明的要点基本上是将缩水甘油三烷基铵卤化物如缩水甘油基三甲基氯化铵与含有纯胶原或胶原和其他组分如粘多糖的材料进行反应,以便在材料的胶原分子中引入阳离子季铵官能团, 肝素与阳离子官能团的离子组合引入。 同时,在上述化学处理之前,通过从牛的跟腱中除去胶原蛋白之外的蛋白质从狗的血管中制备,通过粉碎,从人羊膜中通过在蒸馏水中冲洗或从聚酯针织管中涂覆其内部制备材料 以胶原蛋白粉为例。

    Lumen formation-inducible material and instrument to be inserted into the body
    6.
    发明授权
    Lumen formation-inducible material and instrument to be inserted into the body 有权
    流明形成诱导材料和仪器插入体内

    公开(公告)号:US07833148B2

    公开(公告)日:2010-11-16

    申请号:US10498522

    申请日:2002-12-13

    申请人: Yasuharu Noishiki

    发明人: Yasuharu Noishiki

    IPC分类号: A61F2/00

    摘要: The present invention discloses a fistula formation-inducing material having a property of forming a fistula wherein cells are exposed on at least a portion of the fistula luminal surface. This material can be inserted into a living body, using a hollow tubular member, as desired. As a result, there is provided a fistula formation-inducing material which allows the formation of a fistula, reliably lined by host cells, in a living body.

    摘要翻译: 本发明公开了一种具有形成瘘管的特征的瘘形成诱导材料,其中细胞暴露在瘘管腔表面的至少一部分上。 根据需要,该材料可以使用中空的管状构件插入生物体中。 结果,提供了一种瘘形成诱导材料,其允许在生物体中形成可靠地由宿主细胞排列的瘘管。

    Antithrombogenic medical material and method of preparing same
    9.
    发明授权
    Antithrombogenic medical material and method of preparing same 失效
    抗凝血药物及其制备方法

    公开(公告)号:US4833200A

    公开(公告)日:1989-05-23

    申请号:US889654

    申请日:1986-07-25

    摘要: An antithrombogenic medical material with a remarkable antithrombogenic property and histocompatibility as well as sufficient physical strength, formed by fixing a heparinized collagen to a synthetic polymer material is provided. And a method of preparing an antithrombogenic medical material is provided, wherein a synthetic polymer material is subjected to a coating or impregnating treatment with a collagen-containing solution, followed by heparinization of the collagen, and the heparinized collagen is fixed to the synthetic polymer material. This method allows manufacturing of antithrombogenic medical material with ease.

    摘要翻译: 本发明提供具有抗凝血性能和组织相容性以及通过将肝素化胶原固定在合成高分子材料上形成的充分体力的抗血栓形成的医用材料。 提供一种制备抗血栓形成的医药材料的方法,其中合成聚合物材料用含胶原的溶液进行包衣或浸渍处理,然后将胶原蛋白肝素化,并将肝素化胶原蛋白固定在合成聚合物材料 。 该方法容易制造抗血栓形成的医用材料。