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36 条记录 (耗时 0.024 秒)

    GUIDEWIRES WITH IMPROVED FATIGUE LIFE AND METHODS OF MAKING THE SAME
    31.
    发明申请
    GUIDEWIRES WITH IMPROVED FATIGUE LIFE AND METHODS OF MAKING THE SAME 有权
    具有改进的疲劳寿命的指南及其制造方法

    公开(公告)号：US20090118705A1

    公开(公告)日：2009-05-07

    申请号：US11934659

    申请日：2007-11-02

    申请人： Hancun Chen ,  Peter Skujins

    发明人： Hancun Chen ,  Peter Skujins

    IPC分类号： A61M25/09 ,  B23P11/00

    CPC分类号： A61M25/09 ,  A61M2025/09066 ,  A61M2025/09108 ,  A61M2025/09133

    摘要： A medical device, such as a medical guidewire, having a portion including an inner zone of material and an outer peripheral zone of material surrounding the inner zone of material. The inner zone of material has a first coefficient of thermal expansion and the outer peripheral zone of material has a second coefficient of thermal expansion less than the first coefficient of thermal expansion, wherein at an operating temperature the outer peripheral zone of material opposes expansion of the inner zone of material such that the outer peripheral zone of material exerts a compressive stress on the inner zone of material.

    摘要翻译： 具有包括材料的内部区域和围绕材料的内部区域的材料的外围区域的部分的医疗装置，例如医疗导丝。 材料的内部区域具有第一热膨胀系数，并且材料的外周区域具有小于第一热膨胀系数的第二热膨胀系数，其中在工作温度下，材料的外周区域反对膨胀 材料的内部区域，使得材料的外周区域在材料的内部区域上施加压缩应力。

    Medical device coating configuration and method for improved lubricity and durability
    32.
    发明申请
    Medical device coating configuration and method for improved lubricity and durability 有权
    医疗器械涂层配置和改善润滑性和耐久性的方法

    公开(公告)号：US20080097393A1

    公开(公告)日：2008-04-24

    申请号：US11509210

    申请日：2006-08-24

    申请人： Hancun Chen

    发明人： Hancun Chen

    IPC分类号： A61M25/00 ,  B05D7/00

    CPC分类号： A61M25/09

    摘要： Medical devices and methods for making and using the same. An example medical device includes a slotted tubular member and a coating disposed over the tubular member. The coating may define one or more coating gaps therein.

    摘要翻译： 医疗器械及其制造和使用方法。 示例性医疗装置包括开槽管状构件和设置在管状构件上方的涂层。 涂层可以在其中限定一个或多个涂层间隙。

    Crossing guide wire with corrugated shaping ribbon
    33.
    发明申请
    Crossing guide wire with corrugated shaping ribbon 有权
    带波纹成形带的交叉导丝

    公开(公告)号：US20070255183A1

    公开(公告)日：2007-11-01

    申请号：US11414993

    申请日：2006-05-01

    申请人： Hancun Chen

    发明人： Hancun Chen

    IPC分类号： A61M25/00 ,  A61B5/00

    CPC分类号： A61M25/09 ,  A61M25/0102 ,  A61M2025/09066 ,  A61M2025/09075 ,  A61M2025/09133 ,  A61M2025/09175

    摘要： A medical device with a corrugated shaping ribbon is provided. The corrugated shaping ribbon allows for the medical device, which may be provided in the form of a guide wire or catheter, specifically a crossing guide wire or catheter, to more easily navigate through the sometimes tortuous pathways of body lumens. In addition, the corrugations effectively provide a mechanism by which energy can be stored as the distal tip of the medical device engages a lesion or other area of occlusion within a blood vessel. By storing such energy and continuing to apply force, eventually the distal tip extends thereby releasing the stored energy and allowing the distal tip to advance or cross through the lesion.

    摘要翻译： 提供具有波纹成形带的医疗装置。 波纹成形带允许医疗装置，其可以以导丝或导管的形式，特别是交叉导丝或导管提供，以更容易地导航通过体腔的有时曲折的路径。 此外，波纹有效地提供了一种机构，当医疗装置的远侧末端接合血管内的损伤或其它阻塞区域时，能够储存能量。 通过储存这种能量并继续施加力，最终远端尖端延伸从而释放储存的能量并允许远端尖端前进或穿过病变。

    Wall construction for electrolytic cell
    35.
    发明授权
    Wall construction for electrolytic cell 失效
    电解槽墙结构

    公开(公告)号：US06852204B2

    公开(公告)日：2005-02-08

    申请号：US10208099

    申请日：2002-07-31

    申请人： Weitung Wang ,  Hancun Chen ,  Jack C. Chen

    发明人： Weitung Wang ,  Hancun Chen ,  Jack C. Chen

    IPC分类号： B01D53/32 ,  C25B9/00 ,  C25B11/04

    CPC分类号： B01D53/326

    摘要： A wall construction for an electrolytic cell to separate oxygen from an oxygen containing gas in which an electrolyte layer of less than 200 microns and a cathode layer of less than 500 microns are supported by an anode that can have a sufficient thickness to also contain the separated oxygen at pressure. The cathode is formed from the same material as the electrolyte and also a noble metal or noble metal alloy and a mixed conductor. The cathode contains a sufficient amount of the noble metal or noble metal allow and the mixed conductor that the total resistance thereof is not greater than about 70 percent of the total resistance of the anode and the cathode. In a preferred embodiment, first and second porous interfacial layers are situated between an anode layer and the electrolyte and the electrolyte and a cathode layer, respectively. The first and second porous interfacial layers increase thermal compatibility between the anode and cathode and the electrolyte, improve the three-phase boundary and allow thinner electrolytes to be employed with fewer manufacturing defects.

    摘要翻译： 用于将氧气与含氧气体分离的壁结构，其中小于200微米的电解质层和小于500微米的阴极层由阳极支撑，该阳极可以具有足够的厚度以也含有分离的 氧气在压力下。 阴极由与电解质相同的材料形成，也由贵金属或贵金属合金和混合导体形成。 阴极含有足够量的贵金属或贵金属允许的混合导体，其总电阻不大于阳极和阴极的总电阻的约70％。 在优选的实施方案中，第一和第二多孔界面层分别位于阳极层和电解质之间，并且分别位于电解质和阴极层之间。 第一和第二多孔界面层增加了阳极和阴极与电解质之间的热相容性，改善了三相边界，并允许使用较薄的电解质，而制造缺陷较少。