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93 条记录 (耗时 0.049 秒)

    Perfusion catheter with coil supported inner tubular member
    72.
    发明授权
    Perfusion catheter with coil supported inner tubular member 有权
    灌注导管带线圈支撑内管状构件

    公开(公告)号：US6117106A

    公开(公告)日：2000-09-12

    申请号：US419614

    申请日：1999-10-14

    申请人： Lawrence D. Wasicek ,  Yen Chan ,  Mina W. B. Chow ,  Ketan P. Muni ,  Bozena Z. Maslanka

    发明人： Lawrence D. Wasicek ,  Yen Chan ,  Mina W. B. Chow ,  Ketan P. Muni ,  Bozena Z. Maslanka

    IPC分类号： A61M25/00 ,  A61M29/02

    CPC分类号： A61M25/104 ,  A61M25/0052 ,  A61M2025/0004 ,  A61M2025/1079 ,  A61M2025/1097 ,  A61M25/0053

    摘要： A perfusion dilatation catheter is disclosed which has an improved distal catheter shaft portion with a tubular member extending within the balloon provided with an expanded coil support incorporated within the wall of the tubular member. The coil is preferably closer to the inner surface than the outer surface of the tubular member. Also disclosed are improved catheter shaft sections in a perfusion portion proximal to the balloon, one with a reinforced inflation tube depending into the guidewire lumen and another having three separate lumens, a central guidewire lumen and a pair of inflation lumens on opposing sides of the tubular structure defining the guidewire lumen.

    摘要翻译： 公开了一种灌注扩张导管，其具有改进的远端导管轴部分，其具有在球囊内延伸的管状构件，该管状构件设置有并入管状构件的壁内的扩张的线圈支架。 线圈优选地比管状构件的外表面更靠近内表面。 还公开了在靠近气囊的灌注部分中的改进的导管轴部分，一个具有依赖于导丝管腔的增强的充气管，另一个具有三个独立的腔，中心导丝腔和一对在管的相对侧上的充气腔 限定导丝管腔的结构。

    Balloons for medical catheters
    73.
    发明授权
    Balloons for medical catheters 失效
    医用导管气球

    公开(公告)号：US5849846A

    公开(公告)日：1998-12-15

    申请号：US476101

    申请日：1995-06-06

    申请人： Ziyun Chen ,  Tai C. Cheng ,  Jeong S. Lee ,  Ketan P. Muni ,  Udayan Patel ,  Robert P. Saltman

    发明人： Ziyun Chen ,  Tai C. Cheng ,  Jeong S. Lee ,  Ketan P. Muni ,  Udayan Patel ,  Robert P. Saltman

    IPC分类号： A61L29/00 ,  A61L29/04 ,  A61M25/00 ,  A61M25/16 ,  C08L23/02 ,  C08L67/00 ,  C08L67/02 ,  C08L77/00 ,  A61M25/10 ,  A61M29/02

    CPC分类号： A61L29/049 ,  A61M25/1029 ,  C08L67/02 ,  A61M2025/1031 ,  A61M25/0009

    摘要： A catheter and/or balloon for a medical catheter is formed from a blend of polymeric components, including a first crystalline polymeric component and a second softening polymeric component. The polymeric material can also include a third compatibilizing agent to facilitate blending the first two polymeric components together. The first polymeric component can be a polyester or a polyamide, and the second polymeric component can be a polyolefin, or an ethylene copolymer. The third polymeric component is preferably an ethylene copolymer containing a reactive group that forms a covalent bond with the first polymeric component. The polymeric material forming the balloon or catheter also can include a catalyst to catalyze a reaction between the compatibilizing ethylene copolymer and the second polymer component. The second, softening polymeric component can also include a silane coupling agent, to provide a reactive softening copolymer that bonds with the first strong polymeric component, to provide increased flexibility of catheters and balloons formed from the polymeric components. The properties of the balloon and catheter formed from the polymeric material can be enhanced by crosslinking by irradiation of the polymeric material.

    摘要翻译： 用于医疗导管的导管和/或气囊由聚合物组分的混合物形成，包括第一结晶聚合物组分和第二软化聚合物组分。 聚合物材料还可以包括第三相容剂以便于将前两个聚合物组分共混在一起。 第一聚合物组分可以是聚酯或聚酰胺，第二聚合物组分可以是聚烯烃或乙烯共聚物。 第三聚合物组分优选是含有与第一聚合物组分形成共价键的反应性基团的乙烯共聚物。 形成气囊或导管的聚合物材料还可以包括催化剂，以催化相容性乙烯共聚物和第二聚合物组分之间的反应。 第二软化聚合物组分还可以包括硅烷偶联剂，以提供与第一强聚合物组分键合的反应性软化共聚物，以提供由聚合物组分形成的导管和气囊的增加的柔性。 由聚合物材料形成的球囊和导管的性质可以通过聚合材料的照射交联来增强。

    Catheter with intraluminal sealing element
    74.
    发明授权
    Catheter with intraluminal sealing element 失效
    导管内腔内密封元件

    公开(公告)号：US5348537A

    公开(公告)日：1994-09-20

    申请号：US913859

    申请日：1992-07-15

    申请人： Steven P. Wiesner ,  Ketan P. Muni

    发明人： Steven P. Wiesner ,  Ketan P. Muni

    IPC分类号： A61M25/00 ,  A61M29/02

    CPC分类号： A61M25/0075 ,  A61M25/104 ,  A61M2025/0063

    摘要： A sealing element for dilatation and other inflatable catheters which is formed of a polymer matrix having a bearing surface and having incorporated, at least in the portion of the matrix forming the bearing surface, a lubricous material which swells upon contact with an aqueous based liquid. The bearing surface is adapted to engage the surface of a movable member such as a guidewire when the bearing surface expands from contact with aqueous based liquid. This engagement seals the interface between the movable member and the sealing element and prevents the passage of significant amounts of liquid through the interface between these elements.

    摘要翻译： 用于膨胀的密封元件和其它可充气导管，其由具有支承表面的聚合物基体形成，并且至少在形成支承表面的基质部分中并入润滑材料，所述润滑材料在与基于水的液体接触时溶胀。 当轴承表面与基于水的液体的接触膨胀时，支承表面适于接合诸如导丝的可移动部件的表面。 该接合密封可移动构件和密封元件之间的界面，并防止大量液体通过这些元件之间的界面。

    Aspiration method
    78.
    发明授权
    Aspiration method 有权
    吸气法

    公开(公告)号：US06454741B1

    公开(公告)日：2002-09-24

    申请号：US09537471

    申请日：2000-03-24

    申请人： Ketan P. Muni ,  Gholam Reza Zadno-Azizi ,  Celso Bagaoisan

    发明人： Ketan P. Muni ,  Gholam Reza Zadno-Azizi ,  Celso Bagaoisan

    IPC分类号： A61M2900

    CPC分类号： A61M25/104 ,  A61B17/22 ,  A61B18/245 ,  A61B2017/22067 ,  A61B2017/22084 ,  A61B2017/320716 ,  A61M2025/09183 ,  A61M2025/1015 ,  A61M2025/1052 ,  A61M2025/109 ,  A61M2025/1093

    摘要： A method for the treatment of a stenosis or an occlusion in a blood vessel in which an occlusive device is first delivered and activated at a site distal to the occlusion to at least partially occlude the vessel. A therapy catheter is then introduced to treat the occlusion and a debris removal device is delivered to aspirate debris from the vessel. The present invention eliminates the need for a separate irrigation catheter and irrigation fluid which allows the procedure to be performed quickly and efficiently, and is especially useful in the removal of occlusion from saphenous vein graft, the coronary and carotid arteries, arteries above the aortic arch and vessels of similar size and pressure.

    摘要翻译： 一种用于治疗血管狭窄或闭塞的方法，其中闭塞装置首先在远端闭塞位置被输送和活化以至少部分地封闭血管。 然后引入治疗导管以治疗闭塞，并且输送碎片去除装置以从血管吸出碎屑。 本发明消除了对单独的冲洗导管和冲洗流体的需要，其允许快速且有效地执行该过程，并且特别可用于从隐静脉移植物，冠状动脉和颈动脉，主动脉弓上方的动脉中除去闭塞 和类似尺寸和压力的容器。

    Core wire with shapeable tip
    79.
    发明授权
    Core wire with shapeable tip 有权
    具有可塑尖端的芯线

    公开(公告)号：US06375629B1

    公开(公告)日：2002-04-23

    申请号：US09690588

    申请日：2000-10-17

    申请人： Ketan P. Muni ,  Sivette Lam ,  Juan T. Domingo ,  Gholam-Reza Zadno-Azizi ,  Samuel Omaleki ,  Isaac J. Kim ,  Celso J. Bagaoisan

    发明人： Ketan P. Muni ,  Sivette Lam ,  Juan T. Domingo ,  Gholam-Reza Zadno-Azizi ,  Samuel Omaleki ,  Isaac J. Kim ,  Celso J. Bagaoisan

    IPC分类号： A61B500

    CPC分类号： C22F1/006 ,  A61M25/09 ,  A61M2025/09175 ,  A61M2025/1093

    摘要： The present invention provides an improved core wire for use in a medical catheter. In one aspect, the invention provides a core wire with a shapeable tip and method of manufacturing the same. A core wire previously made superelastic is subject to additional processing to remove its superelasticity thereby allowing the material to be shapeable to aid in advancing the core wire through a blood vessel or other body cavities. In another aspect of the present invention, a method is provided for securing the core wire to the distal end of an elongated catheter tubular body. The tubular body is mechanically crimped onto the core wire to secure the core wire in place. This crimping method has been found to increase the strength of the bond between the core wire and the catheter tube so that greater pull force is required to break the core wire off from the catheter.

    摘要翻译： 本发明提供一种用于医疗导管的改进的芯线。 一方面，本发明提供一种具有可成形尖端的芯线及其制造方法。 预先制成超弹性的芯线经受额外的处理以去除其超弹性，从而允许材料可成型以帮助将芯线推进通过血管或其它体腔。 在本发明的另一方面，提供了一种用于将芯线固定到细长导管管体的远端的方法。 将管状体机械地压接在芯线上以将芯线固定到位。 已经发现这种卷曲方法增加了芯线和导管之间的结合强度，使得需要更大的拉力来将芯线从导管断开。

    Catheter core wire
    80.
    发明授权
    Catheter core wire 有权
    导管芯线

    公开(公告)号：US06355016B1

    公开(公告)日：2002-03-12

    申请号：US09253971

    申请日：1999-02-22

    申请人： Celso J. Bagaoisan ,  Ketan P. Muni ,  Gholam-Reza Zadno-Azizi ,  Sivette Lam ,  Juan T. Domingo ,  Isaac J. Kim ,  Samuel L. Omaleki ,  Jefferey C. Bleam

    发明人： Celso J. Bagaoisan ,  Ketan P. Muni ,  Gholam-Reza Zadno-Azizi ,  Sivette Lam ,  Juan T. Domingo ,  Isaac J. Kim ,  Samuel L. Omaleki ,  Jefferey C. Bleam

    IPC分类号： A61M2900

    CPC分类号： A61M25/104 ,  A61M25/09 ,  A61M25/09033 ,  A61M2025/09175 ,  A61M2025/1093 ,  C22F1/006

    摘要： Disclosed herein is an improved core wire for use in a medical catheter. In one aspect, a tapering core wire is incorporated into the distal end of a catheter. The catheter has a tubular body. Both ends of an inflatable balloon are mounted to the tubular body. The core wire extends from the distal end of the tubular body. In one embodiment, substantially all of the taper of the core wire occurs in the extending portion of the core wire over a length of at least 15 mm but no more than 60 mm. In another aspect, a core wire with a shapeable tip and method of manufacturing the same are provided. A core wire previously made superelastic is subject to additional processing to remove its superelasticity thereby allowing the material to be shapeable to aid in advancing the core wire through a blood vessel or other body cavities. In another aspect of the present invention, a method is provided for securing the core wire to the distal end of an elongated catheter tubular body. The tubular body is mechanically crimped onto the core wire to secure the core wire in place. This crimping method has been found to increase the strength of the bond between the core wire and the catheter tube so that greater pull force is required to break the core wire off from the catheter.

    摘要翻译： 本文公开了一种用于医疗导管的改进的芯线。 在一个方面，锥形芯线被并入导管的远端。 导管具有管状体。 可充气气囊的两端安装在管状体上。 芯线从管状体的远端延伸。 在一个实施例中，芯线的基本上所有的锥形在芯线的延伸部分中发生长度至少为15mm但不大于60mm。 另一方面，提供了具有可成形尖端的芯线及其制造方法。 预先制成超弹性的芯线经受额外的处理以去除其超弹性，从而允许材料可成型以帮助将芯线推进通过血管或其它体腔。 在本发明的另一方面，提供了一种用于将芯线固定到细长导管管体的远端的方法。 将管状体机械地压接在芯线上以将芯线固定到位。 已经发现这种卷曲方法增加了芯线和导管之间的结合强度，使得需要更大的拉力来将芯线从导管断开。