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50 条记录 (耗时 0.026 秒)

    Three-Function Reflowable Circuit Protection Device
    11.
    发明申请
    Three-Function Reflowable Circuit Protection Device 审中-公开
    三功能可回流电路保护装置

    公开(公告)号：US20120194958A1

    公开(公告)日：2012-08-02

    申请号：US13209146

    申请日：2011-08-12

    申请人： Martyn A. Matthiesen ,  Jianhua Chen ,  Matthew P. Galla ,  Anthony Vranicar ,  Wayne Montoya

    发明人： Martyn A. Matthiesen ,  Jianhua Chen ,  Matthew P. Galla ,  Anthony Vranicar ,  Wayne Montoya

    IPC分类号： H02H5/04 ,  H05K13/00

    CPC分类号： H01H37/761 ,  H01H2037/046 ,  H01H2037/762 ,  Y10T29/49117

    摘要： A circuit protection device includes a substrate with first and second electrodes connected to the circuit to be protected. The circuit protection device also includes a heater element between the first and second electrodes. A sliding contact is connected by a sensing element to the first electrode, second electrode, and heater element, thereby bridging and providing a conductive path between each. A spring element is held in tension by, and exerts a force parallel to a length of the substrate against, the sliding contact. A flux material is provided around the sensing element. Upon detection of an activation condition, the sensing element releases the sliding contact and the force exerted by the spring element moves the sliding contact to another location on the substrate at which the sliding contact no longer provides a conductive path between the first electrode, second electrode, and heater element. The flux allows the sliding contact to move without dragging the sensing material.

    摘要翻译： 电路保护装置包括具有连接到待保护电路的第一和第二电极的基板。 电路保护装置还包括在第一和第二电极之间的加热元件。 滑动触点通过感测元件连接到第一电极，第二电极和加热器元件，从而桥接并在每个之间提供导电路径。 弹簧元件由滑动接触件保持紧张并且施加平行于衬底长度的力。 传感元件周围设置助焊剂材料。 在检测到激活条件时，感测元件释放滑动接触并且由弹簧元件施加的力将滑动接触件移动到衬底上的另一位置，在该位置处滑动接触不再在第一电极，第二电极 ，和加热元件。 助焊剂允许滑动触点移动而不拖动传感材料。

    Electrically activated surface mount thermal fuse
    12.
    发明申请
    Electrically activated surface mount thermal fuse 有权
    电激活表面贴装热熔丝

    公开(公告)号：US20100245022A1

    公开(公告)日：2010-09-30

    申请号：US12383595

    申请日：2009-03-24

    申请人： Matthew P. Galla ,  Jianhua Chen ,  Martyn A. Matthiesen

    发明人： Matthew P. Galla ,  Jianhua Chen ,  Martyn A. Matthiesen

    IPC分类号： H01H85/04

    CPC分类号： H01H37/761 ,  H01H2037/046 ,  H01H2037/762 ,  H01H2037/763

    摘要： A reflowable thermal fuse includes a conduction element with first and second ends, disposed within a housing. The reflowable thermal fuse also includes an elastic element disposed within the housing and adapted to apply force on the conduction element in an activated state of the reflowable thermal fuse. A restraining element is utilized to secure the elastic element and prevent the elastic element from applying force on the conduction element in an installation state of the reflowable thermal fuse. Application of an activating current through the restraining element causes the restraining element to break and thereby release the elastic element and place the reflowable thermal fuse in the activated state.

    摘要翻译： 可回流的热熔丝包括设置在壳体内的具有第一和第二端的导电元件。 可回流热保险丝还包括设置在壳体内的弹性元件，并且适于在可回流热熔丝的激活状态下对导电元件施加力。 使用限制元件来固定弹性元件，并防止弹性元件在可回流热熔丝的安装状态下对导电元件施加力。 施加激活电流通过约束元件使得约束元件断裂，从而释放弹性元件并将可回流热熔丝置于激活状态。

    Block copolymer elastomer catheter balloons
    14.
    发明授权
    Block copolymer elastomer catheter balloons 失效

    公开(公告)号：US07618696B2

    公开(公告)日：2009-11-17

    申请号：US10080781

    申请日：2002-02-22

    申请人： Lixiao Wang ,  Jianhua Chen

    发明人： Lixiao Wang ,  Jianhua Chen

    IPC分类号： B29D22/00 ,  B29D23/00 ,  B32B1/08

    CPC分类号： A61M25/1027 ,  A61L29/06 ,  A61L29/14 ,  A61M25/1029 ,  B29L2031/7542 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/1397 ,  C08L77/12 ,  C08L67/02

    摘要： Balloons for medical devices, particularly balloon angioplasty catheters, are made from particular block copolymer thermoplastic elastomers in which the block copolymer is made up of hard segments of a polyester or polyamide and soft segments of polyether; the polyester hard segments are polyesters of an aromatic dicarboxylic acid and a C2-C4 diol; the polyamide hard segments are polyamides of C6 or higher carboxylic acids and C6 or higher organic diamines or of C6 or higher aliphatic ω-amino-α-acids, and the polyether soft segments are polyethers of C2-C10, diols; the block copolymer has a low flexural modulus, namely less than 150,000 psi; the block copolymer has a hardness, Shore D scale, of greater than 60; and the percentage by weight of the block polymer attributable to the hard segments is between about 50% and about 95%. The polymers provide high strength, thin wall, compliant and semi-compliant balloons, which leads to a low profile catheter. The low profile catheters have very good initial crossing, good trackability, good recrossing after first inflation.

    Composition and process for manufacturing PBT catheter balloons
    17.
    发明授权
    Composition and process for manufacturing PBT catheter balloons 有权
    制造PBT导管气球的组成和工艺

    公开(公告)号：US06465067B1

    公开(公告)日：2002-10-15

    申请号：US09706266

    申请日：2000-11-03

    申请人： Lixiao Wang ,  Jianhua Chen

    发明人： Lixiao Wang ,  Jianhua Chen

    IPC分类号： B29D2202

    CPC分类号： A61M25/1029 ,  A61L29/06 ,  A61M2025/1031 ,  C08K3/38 ,  C08L67/02 ,  Y10T428/1352 ,  Y10T428/139 ,  C08L2666/02

    摘要： A processing technique and a composition which allow compositions of PBT polymers or copolymers to be formed into blow molded articles, especially medical balloons such as dilatation or stent placement balloons, from extruded tubular parisons. The process includes a longitudinal stretch step run at a temperature below the Tg of the polymeric material and a radial expansion step run at a temperature above the Tg of the polymeric material. During the longitudinal stretch step, the tubing is subjected to high internal pressure. In the composition a small amount of boric acid is added to the polybutylene terephthalate in a melt blend to give a formulation which has reduced crystallinity after extrusion and which can more readily fashioned into high strength blow molded articles than PBT by itself. Articles, which may be formed using the invention include medical device balloon articles in which the polymer consists essentially of PBT optionally blended with boric acid.

    摘要翻译： 一种加工技术和组合物，其允许PBT聚合物或共聚物的组合物从挤出的管状型坯形成吹塑制品，特别是医疗气囊如膨胀或支架放置气球。 该方法包括在低于聚合物材料的Tg的温度下运行的纵向拉伸步骤和在高于聚合物材料的Tg的温度下运行的径向膨胀步骤。 在纵向拉伸步骤期间，管道受到高的内部压力。 在组合物中，在熔融共混物中将少量硼酸加入到聚对苯二甲酸丁二醇酯中，得到挤出后结晶度降低且比PBT本身更容易形成高强度吹塑制品的制剂。 可以使用本发明形成的制品包括其中聚合物基本上由PBT任选与硼酸共混的医疗装置球囊制品。

    Balloons made from liquid crystal polymer blends
    18.
    发明授权
    Balloons made from liquid crystal polymer blends 失效
    由液晶聚合物混合物制成的气球

    公开(公告)号：US06242063B1

    公开(公告)日：2001-06-05

    申请号：US08926905

    申请日：1997-09-10

    申请人： David A. Ferrera ,  George C. Michaels ,  Ralph J. Barry ,  Lixiao Wang ,  Jianhua Chen

    发明人： David A. Ferrera ,  George C. Michaels ,  Ralph J. Barry ,  Lixiao Wang ,  Jianhua Chen

    IPC分类号： A61M2510

    CPC分类号： A61M25/1029 ,  A61L29/049 ,  A61L29/14 ,  A61M2025/1031 ,  B29C49/22 ,  B29L2022/022 ,  B29L2031/7542 ,  Y10T428/1334 ,  Y10T428/1345 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/31797

    摘要： Balloons for use on medical devices such as catheter balloons are formed from polymer blend products which include a liquid crystal polymer (LCP), a crystallizable thermoplastic polymer, especially thermoplastic polyesters such as PET, and a compatabilizer. The compatabilizer may be an ethylene-maleic anhydride copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methyl acrylate-maleic anhydride terpolymer, an ethylene-methyl-methacrylic acid terpolymer, an acrylic rubber, an ethylene-ethyl acrylate-glycidyl methacrylate terpolymer or a mixture of two or more such polymers.

    摘要翻译： 用于诸如导管球囊的医疗装置上的气球由聚合物共混产物形成，其包括液晶聚合物（LCP），可结晶的热塑性聚合物，特别是热塑性聚酯如PET，以及组合物。 该分解剂可以是乙烯 - 马来酸酐共聚物，乙烯 - 丙烯酸甲酯共​​聚物，乙烯 - 丙烯酸甲酯共​​聚物，乙烯 - 丙烯酸甲酯 - 马来酸酐三元共聚物，乙烯 - 甲基 - 甲基丙烯酸三元共聚物，丙烯酸橡胶，乙烯 丙烯酸乙酯 - 甲基丙烯酸缩水甘油酯三元共聚物或两种或更多种这样的聚合物的混合物。