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29 条记录 (耗时 0.03 秒)

    Self-expanding valve for the venous system
    7.
    发明申请
    Self-expanding valve for the venous system 审中-公开
    用于静脉系统的自扩张阀

    公开(公告)号：US20090062907A1

    公开(公告)日：2009-03-05

    申请号：US11897794

    申请日：2007-08-31

    申请人： Rodolfo C. Quijano ,  Hosheng Tu

    发明人： Rodolfo C. Quijano ,  Hosheng Tu

    IPC分类号： A61F2/06

    CPC分类号： A61F2/2418 ,  A61F2/01 ,  A61F2/2415 ,  A61F2/2475 ,  A61F2220/0058 ,  A61F2230/0026 ,  A61F2230/0095

    摘要： A venous valve device and method of formation are described to provide antegrade blood flow in the deep venous vessels of the leg or in other venous vessels of the body having incompetent or irreversibly dysfunctional valves. The venous valve device is made of a sheet of biocompatible material, comprising a longitudinal wire-frame structure that is a continuous seamless wire loop and plural anchoring mesh-lattice wing members spaced apart and connected to the base of the wire-frame structure.

    摘要翻译： 描述了一种静脉瓣装置和形成方法，以在肢体的深静脉血管或体内具有无能力或不可逆功能失调的瓣膜的其他静脉血管中提供顺行血流。 静脉瓣装置由一片生物相容性材料制成，其包括纵向线框架结构，其是连续的无缝线环，并且间隔开并连接到线框架结构的底部的多个锚固网格格架构件。

    Apparatus and methods for monitoring tissue impedance
    8.
    发明授权
    Apparatus and methods for monitoring tissue impedance 失效
    用于监测组织阻抗的装置和方法

    公开(公告)号：US06807444B2

    公开(公告)日：2004-10-19

    申请号：US10050307

    申请日：2002-01-16

    申请人： Hosheng Tu ,  Rodolfo C. Quijano

    发明人： Hosheng Tu ,  Rodolfo C. Quijano

    IPC分类号： A61B500

    CPC分类号： A61B5/053 ,  A61B5/4381 ,  A61B5/6848

    摘要： A method and apparatus for differentiating in a given area of tissue a tumorous tissue from a normal tissue, the method comprising measuring a plurality of tissue impedance over a range of tissue temperatures and comparing the measured tissue impedance with reference tissue impedance of the normal tissue adapted for tissue differentiation. The management of tissue temperatures may be accomplished with a probe arrangement comprising two elements of different electromotive potential conductively connected at a probe junction, and passing an electrical current through the elements to reduce or raise a temperature of the probe junction in accordance with the Peltier effect.

    摘要翻译： 一种用于在组织的给定区域中区分来自正常组织的肿瘤组织的方法和装置，所述方法包括在组织温度范围内测量多个组织阻抗，并将所测量的组织阻抗与正常组织的参考组织阻抗进行比较 用于组织分化。 组织温度的管理可以用包括在探针结上导电连接的两个不同电动势元件的探针装置来实现，并且使电流通过元件以根据珀耳帖效应来降低或升高探针结的温度 。

    Percutaneously delivered heart valve and delivery means thereof
    9.
    发明授权
    Percutaneously delivered heart valve and delivery means thereof 有权
    经皮输送的心脏瓣膜及其输送装置

    公开(公告)号：US07041132B2

    公开(公告)日：2006-05-09

    申请号：US10222176

    申请日：2002-08-16

    申请人： Rodolfo C. Quijano ,  Hosheng Tu

    发明人： Rodolfo C. Quijano ,  Hosheng Tu

    IPC分类号： A61F2/06

    CPC分类号： A61F2/243 ,  A61F2/2412 ,  A61F2/2418

    摘要： This invention discloses a percutaneous delivered heart valve and delivery means thereof, wherein the percutaneous delivered heart valve is a twistedly foldable heart valve prosthesis comprising a generally cylindrical support element with a diameter, wherein the support element is twistedly foldable to a smaller diameter, a flexible heart valve with a plurality of valvular leaflets releasably attached to said support element, and a receptacle having a plurality of connecting members secured to the cylindrical support element, wherein the receptacle is releasably matched to an expanding element capable of untwisting the receptacle adapted for un-twisting and unfolding said heart valve.

    摘要翻译： 本发明公开了一种经皮输送的心脏瓣膜及其输送装置，其中经皮输送的心脏瓣膜是可折叠的心脏瓣膜假体，其包括具有直径的大致圆柱形的支撑元件，其中支撑元件可扭转成较小的直径， 具有可释放地附接到所述支撑元件的多个瓣状小叶的心脏瓣膜和具有固定到所述圆柱形支撑元件的多个连接构件的容器，其中所述容器可释放地匹配于能够解开所述插座的膨胀元件， 扭转和展开所述心脏瓣膜。

    Device for treating diabetes and methods thereof
    10.
    发明授权
    Device for treating diabetes and methods thereof 失效
    用于治疗糖尿病的装置及其方法

    公开(公告)号：US07432241B1

    公开(公告)日：2008-10-07

    申请号：US11451552

    申请日：2006-06-12

    申请人： Rodolfo C. Quijano ,  Hosheng Tu

    发明人： Rodolfo C. Quijano ,  Hosheng Tu

    IPC分类号： A61K38/00 ,  A61K35/44

    CPC分类号： A61K38/1841 ,  A61K38/1808 ,  A61K38/1825 ,  A61K38/1858 ,  A61K38/1866 ,  A61K38/1891 ,  A61K38/193 ,  A61L27/34 ,  A61L27/56

    摘要： A composite supported vascular graft comprising Vascular Endothelial Growth Factor (VEGF) and/or Platelet Derived Growth Factor (PDGF) for enhanced site-specific angiogenesis and methods thereof are disclosed. At least one VEGF, PDGF or angiogenesis factor is incorporated into the composite vascular graft to facilitate enhanced angiogenesis so as the cells are stimulated to migrate to environments having higher concentration of growth factors and start mitosis.

    摘要翻译： 公开了包含血管内皮生长因子（VEGF）和/或血小板衍生生长因子（PDGF）的增强的位点特异性血管生成的复合支持血​​管移植及其方法。 将至少一种VEGF，PDGF或血管生成因子并入复合血管移植物中以促进增强的血管生成，以便刺激细胞迁移至具有较高浓度生长因子并开始有丝分裂的环境。