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    VARIABLE STIFFNESS GUIDEWIRE
    1.
    发明申请
    VARIABLE STIFFNESS GUIDEWIRE 审中-公开

    公开(公告)号：US20180256860A1

    公开(公告)日：2018-09-13

    申请号：US15451444

    申请日：2017-03-07

    申请人： Lake Region Manufacturing, Inc.

    发明人： Chris Minar ,  Jeanne Douglas ,  Andrew Senn ,  Michael F. Scalise

    IPC分类号： A61M25/09

    CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09133 ,  A61M2025/09141 ,  A61M2025/0915 ,  A61M2025/09158 ,  A61M2025/09175

    摘要： The core element for a guidewire comprises a proximal stainless steel portion and a distal nitinol portion. The distal nitinol portion comprises a proximal segment of an at least partially linear elastic nitinol and a distal segment of a super elastic nitinol. The proximal end of a first spring coil contacts the super elastic nitinol with the first spring coil distal end being proximal the distal end of the distal segment of the super elastic nitinol. A second spring coil has a proximal portion that contacts the first spring coil distal end at a spring coil connection. Further, the second spring coil extends distally to an atraumatic tip. Extending radially from a longitudinal axis of the core wire, the first and second spring coils are spaced from and circumferentially unsupported by the distal nitinol core portion at the spring coil connection.

    Temperature-controlled actuator
    2.
    发明申请
    Temperature-controlled actuator 审中-公开
    温度控制执行器

    公开(公告)号：US20050253680A1

    公开(公告)日：2005-11-17

    申请号：US10509713

    申请日：2003-04-02

    申请人： Eric Mathews ,  Paul Dobson

    发明人： Eric Mathews ,  Paul Dobson

    IPC分类号： F03G7/06 ,  A61M25/00 ,  A61M25/09 ,  G01K5/48 ,  H01H37/32 ,  H01H37/50 ,  H01H37/52

    CPC分类号： G01K5/483 ,  A61M25/0021 ,  A61M2025/0064 ,  A61M2025/09141 ,  A61M2025/09158 ,  H01H37/323 ,  H01H37/50

    摘要： A temperature-controlled actuator has a housing (12) with a proximal end and a moveable distal portion. A core-wire (16) extends along the housing, with its distal section anchored to the distal portion of the housing. The core-wire's distal section has an austenite state and a martensite state. The distal section moves the distal portion by transitioning between the austenite and martensite states in response to a temperature change along a thermometric section (22, 24) of the core-wire. A proximal section in mechanical communication with the core-wire's distal section transmits tension, provided by a tensioning element (20), to the distal section. The tensioning element, which is coupled to the proximal section of the core-wire, constantly applies a tensioning force to the core-wire.

    摘要翻译： 温度控制致动器具有带近端和可移动远端部分的壳体（12）。 芯线（16）沿着壳体延伸，其远端部分锚定到壳体的远端部分。 芯线的远端部分具有奥氏体状态和马氏体状态。 远端部分响应于沿着芯线的测温部分（22,24）的温度变化而在奥氏体和马氏体状态之间转变来移动远端部分。 与芯线的远端部分机械连通的近侧部分将由张紧元件（20）提供的张力传递到远端部分。 联接到芯线的近侧部分的张紧元件不断地向芯线施加张紧力。

    Guide wire with adjustable stiffness
    3.
    发明授权
    Guide wire with adjustable stiffness 失效
    导丝可调刚度

    公开(公告)号：US5938623A

    公开(公告)日：1999-08-17

    申请号：US780687

    申请日：1997-01-08

    申请人： Dignah B. Quiachon ,  Robert A. Guziak ,  Dennis L. Brooks ,  Deepak R. Gandhi ,  Mir A. Imran ,  Roger J. Guidi

    发明人： Dignah B. Quiachon ,  Robert A. Guziak ,  Dennis L. Brooks ,  Deepak R. Gandhi ,  Mir A. Imran ,  Roger J. Guidi

    IPC分类号： A61M25/00 ,  A61M25/09 ,  H04L7/00 ,  H04L25/14 ,  A61B5/00

    CPC分类号： H04L7/0008 ,  A61M25/09 ,  H04L25/14 ,  A61M2025/0063 ,  A61M2025/09133 ,  A61M2025/0915 ,  A61M2025/09158 ,  A61M25/0054

    摘要： Guide wire for use in a medical procedure and for use with a power supply comprising a solid core wire having proximal and distal extremities. The proximal extremity has a predetermined diameter. At least a portion of the distal extremity has a reduced size with respect to the predetermined diameter. A flexible coil is secured to the distal extremity of the core wire and extends over the portion of the core wire having a reduced size. An actuator member is disposed proximal of the coil and extends along the core wire. Electrical conductors extend from the proximal extremity of the core wire to the actuator member for supplying heat to the actuator member. The actuator member is formed of a temperature activated metal alloy having a Young's modulus of 4.times.10.sup.6 to 14.times.10.sup.6 psi which increases in stiffness when heat is supplied thereto to increase the stiffness of the guide wire proximally of the coil.

    摘要翻译： 导线，用于医疗程序并用于电源，包括具有近端和远端的实心芯线。 近端具有预定的直径。 远端末端的至少一部分相对于预定直径具有减小的尺寸。 柔性线圈固定到芯线的远端，并且在具有减小尺寸的芯线的部分上延伸。 致动器构件设置在线圈的近侧并且沿着芯线延伸。 电导体从芯线的近端延伸到致动器构件，以向致动器构件供热。 致动器构件由具有4×10 6至14×10 6 psi的杨氏模量的温度活化金属合金形成，当向其供应热量时，刚度增加，从而增加导线在线圈近侧的刚度。

    Variable stiffness guidewire
    6.
    发明申请
    Variable stiffness guidewire 有权
    可变刚度导丝

    公开(公告)号：US20070149951A1

    公开(公告)日：2007-06-28

    申请号：US11318825

    申请日：2005-12-27

    申请人： Mina Wu ,  Hikmat Hojeibane

    发明人： Mina Wu ,  Hikmat Hojeibane

    IPC分类号： A61M25/00

    CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09158 ,  A61M2025/09175

    摘要： A guidewire navigable through body vessels of a human subject for delivery of a catheter or the like is provided. The guidewire has a tube which receives a corewire that protrudes beyond a distal portion of the tube. The protruding portion of the corewire is surrounded by a spring and shapeable into a curve or arc. The cross-sectional shape of the spring may be varied in order to promote bending flexibility and curvature or to favor curvature of a chosen type. The corewire is axially movable with respect to the tube, which compresses or stretches the spring to change the stiffness of the spring. The tube has a proximal portion comprised of a relatively rigid material, such as stainless steel, while a distal portion is comprised of a more flexible material, such as a nitinol.

    摘要翻译： 提供了可以通过人体受试者的身体血管导航以便传送导管等的导丝。 引导线具有一个管，该管接收突出超过管的远端部分的芯线。 芯线的突出部分被弹簧包围，并可成形成曲线或弧形。 可以改变弹簧的横截面形状，以便促进弯曲柔性和曲率，或者有助于所选类型的曲率。 芯线可相对于管轴向移动，该管压缩或拉伸弹簧以改变弹簧的刚度。 管具有由相对刚性的材料（例如不锈钢）组成的近端部分，而远侧部分由更柔性的材料（例如镍钛诺）组成。

    Guide wire having distal extremity with adjustable support characteristic and method
    7.
    发明授权
    Guide wire having distal extremity with adjustable support characteristic and method 失效
    导丝具有远端，具有可调支撑特性和方法

    公开(公告)号：US5697380A

    公开(公告)日：1997-12-16

    申请号：US585885

    申请日：1996-01-11

    申请人： Dignah B. Quiachon ,  Deepak R. Gandhi ,  Dennis L. Brooks ,  Mir A. Imran ,  Roger J. Guidi

    发明人： Dignah B. Quiachon ,  Deepak R. Gandhi ,  Dennis L. Brooks ,  Mir A. Imran ,  Roger J. Guidi

    IPC分类号： A61F11/00 ,  A61M25/00 ,  A61M25/09 ,  A61M29/00

    CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/0915 ,  A61M2025/09158 ,  A61M2025/09175

    摘要： A guide wire having a distal extremity with an adjustable support characteristic comprising a core wire having proximal and distal extremities. The distal extremity has a reduced cross sectional area which is more flexible than the proximal extremity. A tip secured to the distal extremity of the core wire. A sleeve of superelastic material is disposed coaxially on the distal extremity of the core wire. The sleeve is annealed so that it is relatively flexible at a temperature ranging from 20.degree. to 40.degree. C. and becomes progressively stiffer as temperature increases. The core wire conducts electrical energy to the superelastic sleeve to supply heat to the sleeve and extends from the proximal extremity of the core wire to the sleeve to cause the sleeve to become stiffer to thereby increase the stiffness of the distal extremity of the guide wire. A guide wire is provided having a distal extremity with an adjustable support characteristic which varies from a floppy characteristic to a stiff characteristic.

    摘要翻译： 一种具有远端的引导线，其具有可调节的支撑特征，包括具有近端和远端的芯线。 远端具有减小的横截面积，其比近端更灵活。 尖端固定在芯线的远端。 超弹性材料的套筒同轴地设置在芯线的远端上。 套管退火，使其在20°至40°C的温度范围内具有相对的柔韧性，随着温度升高而逐渐变硬。 芯线将电能传导到超弹性套管以向套管供热并且从芯线的近端延伸到套筒以使套筒变得更硬，从而增加导丝的远端的刚度。 提供导丝，其具有远端，具有可调整的支撑特性，其从软盘特性变为刚性特征。

    MULTI-LUMEN CATHETER
    8.
    发明公开
    MULTI-LUMEN CATHETER 审中-公开

    公开(公告)号：US20240139468A1

    公开(公告)日：2024-05-02

    申请号：US18406622

    申请日：2024-01-08

    申请人： ORBUSNEICH MEDICAL PTE. LTD.

    发明人： Robert J. COTTONE

    IPC分类号： A61M25/00 ,  A61M25/01

    CPC分类号： A61M25/0026 ,  A61M25/007 ,  A61M25/0071 ,  A61M25/0147 ,  A61M2025/0161 ,  A61M2025/09158

    摘要： A medical device is taught, including an elongate catheter body defining a proximal segment, a distal segment, and a first lumen therethrough; a tube attached to the distal segment of the catheter body, the tube defining a proximal end, a distal end, and a second lumen therethrough; wherein the proximal end of the tube is attached to the catheter body at a first joint; wherein the distal end of the tube is attached to the catheter body at a second joint; and wherein a portion of the tube extending between the first and second joints is movable with respect to the catheter body. The medical device may further comprise a deflection element attached to the distal segment of the catheter body.

    Rapidly inserted central catheter and methods thereof
    9.
    发明授权
    Rapidly inserted central catheter and methods thereof 有权

    公开(公告)号：US11890429B2

    公开(公告)日：2024-02-06

    申请号：US17006553

    申请日：2020-08-28

    申请人： Bard Access Systems, Inc.

    发明人： Glade H. Howell

    IPC分类号： A61M25/01 ,  A61M25/09 ,  A61M25/00

    CPC分类号： A61M25/0105 ,  A61M25/0009 ,  A61M25/09 ,  A61M2025/09158

    摘要： Rapidly inserted central catheters (“RICC”), and methods thereof. A RICC can include a catheter tube including a first section in a distal-end portion of the catheter tube, a second section in the distal-end portion of the catheter tube proximal of the first section, and a junction between the first and second sections of the catheter tube. The first section of the catheter tube can be formed of a first material having a first durometer. The second section of the catheter tube can be formed of a second material having a second durometer less than the first durometer. The first and second sections of the catheter tube can have a column strength sufficient to prevent buckling of the catheter tube when inserted into an insertion site and advanced through a vasculature of a patient.