Stent formed from bioerodible metal-bioceramic composite
    4.
    发明授权
    Stent formed from bioerodible metal-bioceramic composite 有权
    支架由生物可蚀性金属 - 生物陶瓷复合材料形成

    公开(公告)号:US08998978B2

    公开(公告)日:2015-04-07

    申请号:US11864737

    申请日:2007-09-28

    申请人: Yunbing Wang

    发明人: Yunbing Wang

    IPC分类号: A61F2/06 A61L31/14 A61L31/12

    CPC分类号: A61L31/148 A61L31/124

    摘要: Medical devices and methods of fabricating such medical devices, such as stents, formed at least in part from a metal matrix composite including bioceramic particles dispersed within an erodible metal are disclosed.

    摘要翻译: 公开了制造这样的医疗装置的医疗装置和方法,例如至少部分由包含分散在可侵蚀金属内的生物陶瓷颗粒的金属基质复合材料形成的支架。

    Methods for crimping a polymeric stent scaffold onto a delivery balloon
    6.
    发明授权
    Methods for crimping a polymeric stent scaffold onto a delivery balloon 有权
    将聚合物支架支架卷曲到输送球上的方法

    公开(公告)号:US08844113B2

    公开(公告)日:2014-09-30

    申请号:US12776317

    申请日:2010-05-07

    申请人: Yunbing Wang

    发明人: Yunbing Wang

    IPC分类号: B21D39/00 B23P11/02

    摘要: A medical device includes a polymer stent scaffold crimped to a catheter having an expansion balloon. A process for forming the medical device includes placing the scaffold on a support supported by an alignment carriage, and deionizing the scaffold to remove any static charge buildup on the scaffold before placing the scaffold within a crimper to reduce the scaffold's diameter. The polymer scaffold is heated to a temperature below the polymer's glass transition temperature to improve scaffold retention without adversely affecting the mechanical characteristics of the scaffold when deployed to support a body lumen.

    摘要翻译: 医疗装置包括卷曲到具有膨胀气囊的导管的聚合物支架构架。 用于形成医疗装置的方法包括将支架放置在由对准托架支撑的支撑件上,并且在将支架放置在卷曲器内以减少支架的直径之前,使支架去离子以去除支架上的静电荷积聚。 将聚合物支架加热到低于聚合物玻璃化转变温度的温度,以改善支架保持性,而不会在展开支架体腔时对支架的机械特性产生不利影响。

    Bioabsorbable scaffolds made from composites
    8.
    发明授权
    Bioabsorbable scaffolds made from composites 有权
    由复合材料制成的生物可吸收支架

    公开(公告)号:US08545546B2

    公开(公告)日:2013-10-01

    申请号:US13107643

    申请日:2011-05-13

    申请人: Yunbing Wang

    发明人: Yunbing Wang

    IPC分类号: A61F2/06 A61M29/00

    摘要: Bioabsorbable scaffolds made at least in part of a poly(L-lactide)-based composite are disclosed. The composite includes poly(4-hydroxybutyrate) or poly(L-lactide)-b-polycaprolactone block copolymer, which increases the fracture toughness or fracture resistance of the scaffold. The composite can further include bioceramic particles, L-lactide monomer, or both dispersed throughout the composite. The bioceramic particles improve the radial strength and stiffness of the scaffold. The L-lactide monomer is used to control the absorption rate of the scaffold.

    摘要翻译: 公开了至少部分由(L-丙交酯)基复合材料制成的生物可吸收支架。 复合材料包括聚(4-羟基丁酸酯)或聚(L-丙交酯)-b-聚己内酯嵌段共聚物,其增加了支架的断裂韧性或抗断裂性。 复合材料还可以包括分散在整个复合材料中的生物陶瓷颗粒,L-丙交酯单体或两者。 生物陶瓷颗粒改善了支架的径向强度和刚度。 L-丙交酯单体用于控制支架的吸收速率。