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42 条记录 (耗时 0.027 秒)

    Method for introducer replacement
    21.
    发明申请
    Method for introducer replacement 有权
    引导器更换方法

    公开(公告)号：US20040138589A1

    公开(公告)日：2004-07-15

    申请号：US10341598

    申请日：2003-01-14

    申请人： RADI MEDICAL SYSTEMS AB

    发明人： Per Egnelov ,  Fredrik Preinitz ,  Lars Tenerz

    IPC分类号： A61M025/01

    CPC分类号： A61M25/0021 ,  A61M25/0662 ,  A61M29/00 ,  A61M2025/0687

    摘要： The invention provides a method for replacing a first introducer, whose distal end is inside a vessel and whose proximal end is outside the skin of a patient, with a second introducer. The method comprises the steps of inserting a guide rod into the first introducer, removing the first introducer, passing the second introducer over the guide rod, and removing the guide rod. The guide rod to be used according to the method has preferably a flexible distal portion with a blunt distal end and a stiff proximal portion with a tapered proximal end.

    摘要翻译： 本发明提供了一种用于替换第一导引器的方法，该第一导引器的远端位于血管内并且其近端位于患者皮肤外部，具有第二导引器。 该方法包括以下步骤：将导杆插入第一导引器，移除第一导引器，使第二导引器穿过导杆，并移除导杆。 根据该方法使用的导杆优选具有柔性的远侧部分，其具有钝的远端和具有锥形近端的刚性近侧部分。

    Two-lumen catheter for distal protection in percutaneous coronary and peripherical intervention
    22.
    发明申请
    Two-lumen catheter for distal protection in percutaneous coronary and peripherical intervention 有权
    用于经皮冠状动脉和外周干预的远端保护的双腔导管

    公开(公告)号：US20040116900A1

    公开(公告)日：2004-06-17

    申请号：US10462079

    申请日：2003-06-13

    发明人： Pedro Silva ,  Paolo Cremascoli

    IPC分类号： A61M025/00 ,  A61M025/01

    CPC分类号： A61M25/0068 ,  A61M1/008 ,  A61M2025/0081

    摘要： A two-lumen catheter for distal protection in percutaneous coronary and peripherical intervention comprises a tubular body defining a first lumen for allowing a guide wire to pass therethrough and a second lumen for connection to a sucking assembly, and being characterized in that said catheter further comprises an end portion defining tapering portion between the tubular body and the catheter tip, in said tapering portion being provided at least a hole communicating with the second lumen.

    摘要翻译： 用于经皮冠状动脉和周围干预的远侧保护的双腔导管包括限定用于允许导丝通过的第一腔的管状体和用于连接到吸入组件的第二腔，并且其特征在于，所述导管还包括 在所述锥形部分中，限定所述管状主体和所述导管末端之间的锥形部分的端部至少设置有与所述第二管腔连通的孔。

    Catheter arrangement
    23.
    发明申请
    Catheter arrangement 审中-公开
    导管安排

    公开(公告)号：US20040116832A1

    公开(公告)日：2004-06-17

    申请号：US10464843

    申请日：2003-06-19

    申请人： curative medical devices GmbH

    发明人： Holger Friedrich ,  Raimund Erbel

    IPC分类号： A61B005/00 ,  A61M025/01

    CPC分类号： A61M25/0152 ,  A61M25/09041 ,  A61M2025/0175

    摘要： The invention relates to a catheter arrangement for invasive medical treatment for introducing and controlling a guide wire in a vessel branch or vessel entry by bending the guide wire. The catheter arrangement comprises two catheters, each having a distal end and a proximal end and a lumen, wherein the two catheters are embodied as an inner catheter 3 and an outer catheter 2 extending coaxially within one another and arranged so as to be moveable relative to one another in an axial direction, wherein the inner catheter 3 has a pre-bent distal tip 3a of a bendable material and the outer catheter 2 has a continuous lumen 22 extending from the proximal end 20 to the distal end 21 for receiving the inner catheter 3, wherein both catheters 2, 3, at a spacing from the distal end 21, have lateral openings 23, 33 for passing the guide wire F therethrough.

    摘要翻译： 本发明涉及一种用于侵入性医疗的导管装置，用于通过弯曲导丝来引导和控制血管分支或血管入口中的导丝。 导管装置包括两个导管，每个导管具有远端和近端和内腔，其中两个导管被实施为内导管3和外导管2，外导管2彼此同轴延伸并且布置成相对于 另一个在轴向方向上，其中内导管3具有可弯曲材料的预弯曲远侧末端3a，并且外导管2具有从近端20延伸到远端21的连续内腔22，用于接纳内导管 如图3所示，其中与远端21间隔开的两个导管2,3具有侧向开口23,33，用于使导丝F穿过其中。

    Coronary vein navigator
    24.
    发明申请
    Coronary vein navigator 审中-公开
    冠状静脉导管

    公开(公告)号：US20040039371A1

    公开(公告)日：2004-02-26

    申请号：US10226647

    申请日：2002-08-23

    发明人： Bruce Tockman ,  Jeffrey A. Hall ,  Randy Westlund

    IPC分类号： A61M025/01

    CPC分类号： A61M25/0147 ,  A61M25/0152 ,  A61N2001/0585

    摘要： A system and method for navigating coronary vasculature involves use of a guide catheter system which includes a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter. The guide catheter is advanced to at least a patient's coronary sinus ostium, and the navigator catheter is extended from the guide catheter to a location proximate or within an angled vein distal to the coronary sinus ostium. Using the deflection arrangement, a guide wire passing through the navigation catheter is directed into the angled vein. A lead having an open lumen is advanced over the guide wire to direct the lead to an implant site within the angled vein.

    摘要翻译： 用于导航冠状动脉脉管系统的系统和方法涉及使用引导导管系统，其包括引导导管，在引导导管内纵向移位的导航导管，以及设置在导航导管远端的偏转装置。 引导导管前进到至少一个患者的冠状窦口，并且导管导管从引导导管延伸到远离冠状窦口的倾斜静脉附近的位置。 使用偏转装置，穿过导航导管的导丝被引导到成角度的静脉中。 具有开放管腔的引线在引导线上前进，以将引线引导到成角度静脉内的植入部位。

    Process for producing steerable sheath catheters
    25.
    发明申请
    Process for producing steerable sheath catheters 审中-公开

    公开(公告)号：US20030145915A1

    公开(公告)日：2003-08-07

    申请号：US10377354

    申请日：2003-02-28

    发明人： Jin Shimada

    IPC分类号： A61M025/01

    CPC分类号： A61M25/0012 ,  A61M25/0147

    摘要： The invention is a method for manufacturing a steerable catheter having a distal end, proximal end, an outer jacket, a pull wire and a central lumen. The central lumen is maintained in a circular shape without bulges diminishing the useful inter-diameter by using an outer jacket with an elliptical shape and uneven thickness to encase a pull wire. The pull wire friction is also reduced by using one wire of larger diameter to create the lumen for the pull wire of smaller diameter, thus reducing the friction on the pull wire and reducing the locking of the catheter body around the pull wire at bends preventing movement of the pull wire. The distal end of the catheter also has a smooth tip due to heat treating of steel wire braid reinforcement that does not require the addition of bulge forming additional material to control tip shape.

    Deflectable tip guide in guide system
    26.
    发明申请
    Deflectable tip guide in guide system 审中-公开
    引导系统中可偏转的引导引导件

    公开(公告)号：US20030120259A1

    公开(公告)日：2003-06-26

    申请号：US10349535

    申请日：2003-01-21

    申请人： Scimed Life Systems, Inc.

    发明人： Timothy J. Mickley

    IPC分类号： A61M025/01

    CPC分类号： A61M25/0147 ,  A61M25/0662 ,  A61M2025/0063 ,  A61M2025/0161

    摘要： Guide catheters which can be used in percutaneous myocardial revascularization (PMR) to deliver therapeutic catheters to difficult to reach heart chamber wall regions. Some guide catheters include distal regions which can be bent under control from the proximal region of the catheter. One steerable guide catheter has a flexible distal region, a more proximal, less flexible intermediate region, a first lumen for receiving a therapeutic catheter, and an elongate manipulation member slidably disposed in a second, blind lumen. The elongate manipulation member can be secured off-center near the distal end of the flexible distal region. The distal region can be bent by retracting the manipulation member and straightened by pushing the manipulation member. Controllably bendable guide catheters according to the present invention can be nested inside other, similar guide catheters. The invention also includes means for resisting free rotation of guide catheters relative to other adjacent catheters or tubes.

    摘要翻译： 可用于经皮心肌血运重建（PMR）的导管，用于输送治疗导管难以到达心室壁区域。 一些引导导管包括可从导管的近端区域控制下弯曲的远侧区域。 一个可操纵的引导导管具有柔性的远侧区域，更近端的较不柔性的中间区域，用于接收治疗导管的第一腔室和可滑动地设置在第二盲腔中的细长操作构件。 细长操作构件可以在靠近柔性远端区域的远端附近被固定在偏心处。 远端区域可以通过缩回操作构件而弯曲，并且通过推动操作构件而被拉直。 根据本发明的可控制的可弯曲导向导管可以嵌套在其它类似的引导导管内。 本发明还包括用于抵抗引导导管相对于其他相邻导管或管的自由旋转的装置。

    Interventional catheter with three dimensional articulation
    27.
    发明申请
    Interventional catheter with three dimensional articulation 审中-公开
    介入导管三维关节

    公开(公告)号：US20030114832A1

    公开(公告)日：2003-06-19

    申请号：US10023314

    申请日：2001-12-14

    发明人： Robert Edward Kohler ,  Michael Gregory O'Connor ,  Sean Patrick Skubitz

    IPC分类号： A61M025/01

    CPC分类号： A61M25/0041 ,  A61B17/00234 ,  A61M25/0054 ,  A61M25/0136 ,  A61M25/0147 ,  A61M2025/0004 ,  A61M2025/0161

    摘要： The present invention relates to a catheter incorporating an articulating distal end, including a catheter body with a central lumen and an outer wall in which are one or more wires, and a handle including mechanisms for applying tension to the wires. Applying tension to a wire will cause a bending portion of the catheter to bend into an arc. When more than one wire or tensioning member and more than one mechanism for applying tension are included in the catheter, the wires are offset from each other so that multiple bends on multiple planes may be formed in multiple bending portions in the body of the catheter. The present invention further relates to a catheter including one wire, and a handle including a mechanism for applying tension to the wire, the wire and the catheter body configured so that applying tension to a wire will cause more than one bending portion of the catheter to bend into an arc, and the bending portions are made of different durometer material. The present invention further relates to a method of using a catheter to access a heart chamber of a patient and locate the distal end of the catheter proximate a shunt located in a wall of the heart.

    摘要翻译： 本发明涉及一种结合有关节远端的导管，其包括具有中心腔的导管主体和外壁，其中是一根或多根导线，以及包括用于向线施加张力的机构的手柄。 向电线施加张力将导致导管的弯曲部分弯曲成弧。 当多于一根线或张紧构件和多于一个施加张力的机构被包括在导管中时，导线彼此偏移，使得多个平面上的多个弯曲可以形成在导管体中的多个弯曲部分中。 本发明还涉及一种包括一根线的导管和一个手柄，该手柄包括用于向导线施加张力的机构，所述导线和导管主体构造成使得向导线施加张力会导致多于一个弯曲部分的导管 弯曲成弧形，并且弯曲部分由不同的硬度材料制成。 本发明还涉及一种使用导管来接近患者的心室并且将导管的远端定位在位于心脏壁的分流器附近的方法。

    Micro catheter and guidewire system having improved pushability and control
    28.
    发明申请
    Micro catheter and guidewire system having improved pushability and control 有权
    微导管和导丝系统具有改进的推力和控制能力

    公开(公告)号：US20020091372A1

    公开(公告)日：2002-07-11

    申请号：US09758331

    申请日：2001-01-09

    发明人： Andrew Cragg ,  James H. Kim

    IPC分类号： A61M025/01

    CPC分类号： A61M25/00 ,  A61M2025/0042 ,  A61M2025/0063 ,  A61M2025/09083 ,  A61M2025/09175

    摘要： A micro catheter and guidewire system for use in tortuous regions of a vasculature includes a catheter body having a distal end, a guidewire lumen, a proximal region with an outer diameter, and a distal region with an outer diameter. The ratio of the proximal region outer diameter to the distal region outer diameter is at least 1.625:1 to improve pushability of the catheter body. The guidewire lumen defines a stopper and the guidewire has a depth stop for engaging the stopper of the guidewire lumen. The depth stop and the stopper cooperate to enable the guidewire to cooperate with the catheter to improve catheter pushability. The depth stop and the stopper also prevent over extension of the guidewire.

    摘要翻译： 用于脉管系统曲折区域的微导管和导丝系统包括具有远端，导丝管腔，具有外径的近端区域和具有外径的远侧区域的导管主体。 近端区域外径与远端区域外径的比例至少为1.625:1，以改善导管体的推压性。 导丝管腔限定了止动器，并且导丝线具有用于接合导丝管腔的塞子的深度限位器。 深度限位器和止动器配合以使导丝与导管配合以改善导管的推动性。 深度限位器和止动器也可防止导丝线过度伸长。

    Catheter with up-going and down-going configurations
    29.
    发明申请
    Catheter with up-going and down-going configurations 失效
    导管具有上下游配置

    公开(公告)号：US20020029013A1

    公开(公告)日：2002-03-07

    申请号：US09931472

    申请日：2001-08-16

    发明人： Larry D. Paskar

    IPC分类号： A61M037/00 ,  A61M025/01

    CPC分类号： A61M25/0041 ,  A61M25/0138 ,  A61M25/0141 ,  A61M25/0147 ,  A61M25/0152 ,  A61M2025/0161

    摘要： A transformable catheter includes a sheath having a length which is a substantial fraction of the entire length of the transformable catheter and a bore therethrough. A preformed inner catheter having a complex curve formed into the distal end thereof is disposed in the sheath bore. By axially moving the inner catheter with respect to the sheath, various tip shapes may be achieved. At least one wire runs from the proximal end of the sheath to the vicinity of the distal end of the sheath to selectively deflect the distal tip of the sheath as desired by the user to assist in reformation and transformation of the tip of the catheter. By suitable manipulation of the wire and of the inner catheter with respect to the sheath, the shape of the exposed portion of the distal end of the inner catheter may be transformed to any of a variety of shapes.

    摘要翻译： 可变形导管包括护套，其长度是可变形导管的整个长度的实质部分，以及穿过其中的孔。 具有形成在其远端的复合曲线的预成型内导管设置在护套孔中。 通过相对于护套轴向移动内导管，可以实现各种尖端形状。 至少一根线从护套的近端延伸到鞘的远端附近，以根据使用者的需要选择性地偏转护套的远端，以辅助导管尖端的改造和转换。 通过相对于鞘适当地操纵线和内导管，内导管的远端的暴露部分的形状可以转变成各种形状。