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102 条记录 (耗时 0.031 秒)

    Method and device for recanalizing and grafting arteries
    71.
    发明授权
    Method and device for recanalizing and grafting arteries 失效
    动脉再通和移植的方法和装置

    公开(公告)号：US5725568A

    公开(公告)日：1998-03-10

    申请号：US495791

    申请日：1995-06-27

    申请人： Roger N. Hastings

    发明人： Roger N. Hastings

    IPC分类号： A61B17/00 ,  A61B17/12 ,  A61B17/22 ,  A61F2/06 ,  A61F2/82 ,  A61L27/16 ,  A61L27/18 ,  A61L27/54 ,  A61L27/56

    CPC分类号： A61F2/82 ,  A61B17/12036 ,  A61B17/12113 ,  A61B17/12186 ,  A61B17/12195 ,  A61F2/06 ,  A61F2/07 ,  A61F2/95 ,  A61L27/16 ,  A61L27/18 ,  A61L27/54 ,  A61L27/56 ,  A61B17/00491 ,  A61B17/12022 ,  A61B17/22 ,  A61B2017/22082 ,  A61F2/945 ,  A61F2002/30583 ,  A61F2210/0085 ,  A61L2300/252 ,  A61L2300/406 ,  A61L2300/414

    摘要： The present invention provides an apparatus and method for repairing a diseased vessel at the site of an aneurysm, graft or stenosis. A polymeric self-hardening or self-curing material is introduced into the diseased area. The material is delivered via catheter and allowed to polymerize or cure in situ forming a foam plug in the vessel. A lumen is then created through the foam plug by such means as an atherectomy catheter, to recanalize the vessel. The polymeric material may also be hardened in situ by change in pH or ionic concentration, organic solvents, by permeation of a secondary material capable of precipitation, or by exposure to heat, light or laser energy. In blood, the device may be hardened through a cooperative effect of coagulation, precipitation or ionization. The device can be made of biodegradable material impregnated with growth factors, mitogenic factors or other determinants. The catheter itself may be an ultrasonic imaging catheter.

    摘要翻译： 本发明提供了在动脉瘤，移植物或狭窄部位修复患病血管的装置和方法。 将聚合物自硬化或自固化材料引入患病区域。 该材料通过导管输送并允许在原位形成聚合或固化在容器中形成泡沫塞。 然后通过诸如粥样斑块切除术导管的手段通过泡沫塞产生内腔，以再通血管。 聚合物材料还可以通过pH或离子浓度变化，有机溶剂，能够沉淀的次级材料的渗透，或通过暴露于热，光或激光能量原位硬化。 在血液中，装置可以通过凝结，沉淀或电离的协同作用来硬化。 该装置可以由浸有生长因子，促有丝分裂因子或其他决定因素的可生物降解材料制成。 导管本身可以是超声成像导管。

    Medical shaft movement control device and method
    72.
    发明授权
    Medical shaft movement control device and method 失效
    医用轴运动控制装置及方法

    公开(公告)号：US5630427A

    公开(公告)日：1997-05-20

    申请号：US663796

    申请日：1996-06-14

    申请人： Roger N. Hastings

    发明人： Roger N. Hastings

    IPC分类号： A61M25/00 ,  A61M25/01 ,  A61M25/06 ,  A61M39/10 ,  A61B5/00

    CPC分类号： A61M25/0169 ,  A61M25/00 ,  A61M25/0127 ,  A61M25/0662 ,  A61M25/09041 ,  A61M39/10 ,  A61M2025/09116 ,  A61M25/0905

    摘要： The present invention is a device and method for controlling longitudinal movement of a tube relative to a shaft slidably disposed within the tube, especially in the catheterization of a patient. An operative segment on the shaft cooperates with an ancillary tool to create a coupling force field between the shaft and the tool. The tube can then be moved over the shaft while the coupling force field operates through the tube to restrict the movement of the shaft. In a preferred embodiment, the shaft is a guide wire and the tube is a catheter with a lumen for slidably receiving the guide wire, while the coupling force field is created magnetically. In one embodiment, the magnetic segment is carried by a sleeve having a central lumen and adapted to be mounted to the proximal portion of a standard guide wire.

    摘要翻译： 本发明是一种用于控制管相对于可滑动地设置在管内的轴的纵向运动的装置和方法，特别是在患者的导管插入中。 轴上的操作段与辅助工具协作以在轴和工具之间产生联接力场。 然后，管可以在轴上移动，同时耦合力场通过管操作以限制轴的运动。 在优选实施例中，所述轴是导丝，并且所述管是具有用于可滑动地接收所述导丝的内腔的导管，而所述耦合力场是由磁力产生的。 在一个实施例中，磁段由具有中心腔的套管承载，并适于安装到标准导丝的近端部分。

    SYSTEMS AND METHODS FOR MAKING AND USING A MOTOR DISTALLY-POSITIONED WITHIN A CATHETER OF AN INTRAVASCULAR ULTRASOUND IMAGING SYSTEM
    75.
    发明申请
    SYSTEMS AND METHODS FOR MAKING AND USING A MOTOR DISTALLY-POSITIONED WITHIN A CATHETER OF AN INTRAVASCULAR ULTRASOUND IMAGING SYSTEM 有权
    用于制造和使用在静脉超声成像系统的导管内进行远程定位的电机的系统和方法

    公开(公告)号：US20100249603A1

    公开(公告)日：2010-09-30

    申请号：US12415724

    申请日：2009-03-31

    申请人： Roger N. Hastings ,  Michael J. Pikus ,  Tat-Jin Teo ,  Kevin D. Edmunds

    发明人： Roger N. Hastings ,  Michael J. Pikus ,  Tat-Jin Teo ,  Kevin D. Edmunds

    IPC分类号： A61B8/14

    CPC分类号： A61B8/12 ,  A61B8/445

    摘要： A catheter assembly for an intravascular ultrasound system includes an imaging core configured and arranged for inserting into a distal end of a lumen of a catheter. The imaging core includes at least one transducer mounted to a driveshaft and configured and arranged for transforming applied electrical signals to acoustic signals and also for transforming received echo signals to electrical signals. A motor is coupled to the driveshaft between the one or more transducers and the transformer. The motor includes a rotatable magnet and at least two magnetic field windings disposed around at least a portion of the magnet.

    摘要翻译： 用于血管内超声系统的导管组件包括被配置和布置成用于插入到导管的内腔的远端中的成像芯。 成像芯包括安装到驱动轴的至少一个换能器，并被配置和布置成将施加的电信号转换成声信号，并且还用于将接收的回波信号变换为电信号。 电动机在一个或多个换能器和变压器之间耦合到驱动轴。 电动机包括可旋转磁体和围绕磁体的至少一部分设置的至少两个磁场绕组。

    Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
    78.
    发明授权
    Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments 失效
    具有可变磁矩的磁性医疗设备和导航具有可变磁矩的磁性医疗设备的方法

    公开(公告)号：US06786219B2

    公开(公告)日：2004-09-07

    申请号：US10167093

    申请日：2002-06-10

    申请人： Jeffrey M. Garibaldi ,  Roger N. Hastings

    发明人： Jeffrey M. Garibaldi ,  Roger N. Hastings

    IPC分类号： A61B1900

    CPC分类号： A61B17/3421 ,  A61B1/00158 ,  A61B34/73 ,  A61B90/36 ,  A61B2018/00023 ,  A61M25/0127

    摘要： A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.

    摘要翻译： 一种在患者体内的操作区域内导航具有可变磁矩的医疗装置的方法，所述方法包括：利用外部源磁体对操作区域施加导航磁场，并改变医疗装置中的磁矩方向 以在操作区域内沿所选择的方向改变医疗装置的方向。 医疗装置的磁矩可以由一个或多个电磁线圈产生，在这种情况下，可以通过改变线圈的电流来改变磁矩。 或者，医疗装置的磁矩可以由一个或多个永磁体产生，在这种情况下，可以通过机械或磁力操纵永久磁铁来改变磁矩。