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102 条记录 (耗时 0.064 秒)

    SYSTEMS AND METHODS FOR MAKING AND USING PERCUTANEOUSLY-DELIVERED PUMPING SYSTEMS FOR PROVIDING HEMODYNAMIC SUPPORT
    51.
    发明申请
    SYSTEMS AND METHODS FOR MAKING AND USING PERCUTANEOUSLY-DELIVERED PUMPING SYSTEMS FOR PROVIDING HEMODYNAMIC SUPPORT 有权
    制造和使用经递送泵送系统提供血液动力学支持的系统和方法

    公开(公告)号：US20110152999A1

    公开(公告)日：2011-06-23

    申请号：US12967856

    申请日：2010-12-14

    申请人： Roger N. Hastings ,  Michael J. Pikus ,  Scott Raymond Smith ,  Leonard B. Richardson ,  Kevin D. Edmunds

    发明人： Roger N. Hastings ,  Michael J. Pikus ,  Scott Raymond Smith ,  Leonard B. Richardson ,  Kevin D. Edmunds

    IPC分类号： A61M1/12 ,  A61F2/82

    CPC分类号： A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1024 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  A61M1/127

    摘要： A percutaneous pumping system for providing hemodynamic support to a patient includes a pumping sleeve that defines a lumen extending along the length of the pumping sleeve. The pumping sleeve is configured and arranged for insertion into patient vasculature. At least one rotatable magnet is disposed in the pumping sleeve. The at least one first magnet is configured and arranged to be driven to rotate by a magnetic field generated external to the pumping sleeve. At least one impeller is coupled to the at least one magnet. Rotation of the at least one magnet causes a corresponding rotation of the at least one impeller. An anchoring arrangement is coupled to the pumping sleeve. The anchoring arrangement is configured and arranged to anchor the pumping sleeve at a target pumping location when the pumping sleeve is inserted into patient vasculature.

    摘要翻译： 用于向患者提供血液动力学支持的经皮泵送系统包括限定沿泵送套管的长度延伸的内腔的泵送套管。 泵送套管被配置和布置成插入患者脉管系统中。 至少一个可旋转磁体设置在泵送套筒中。 所述至少一个第一磁体被构造和布置成被泵送套筒外部产生的磁场驱动以旋转。 至少一个叶轮耦合到所述至少一个磁体。 至少一个磁体的旋转引起至少一个叶轮的相应旋转。 锚定装置联接到泵送套筒。 锚定装置被构造和布置成当泵送套筒插入患者脉管系统时将泵送套管锚定在目标泵送位置处。

    Cardiac stimulation electrodes, delivery devices, and implantation configurations
    53.
    发明授权
    Cardiac stimulation electrodes, delivery devices, and implantation configurations 有权
    心脏刺激电极，输送装置和植入构型

    公开(公告)号：US07937161B2

    公开(公告)日：2011-05-03

    申请号：US11394601

    申请日：2006-03-31

    申请人： Roger N. Hastings ,  Michael J. Pikus

    发明人： Roger N. Hastings ,  Michael J. Pikus

    IPC分类号： A61N1/00

    CPC分类号： A61N1/0573 ,  A61N2001/0578

    摘要： Some embodiments of an electrode delivery system may be used to deliver a plurality of wired electrodes into one or more chambers of the heart. In particular embodiments, the plurality of wired electrodes may be delivered into a heart chamber through a single guide sheath device. Such a system may be used to deliver one or more wired electrodes to inner wall of the left atrium, the left ventricle, or both.

    摘要翻译： 电极传送系统的一些实施例可以用于将多个有线电极输送到心脏的一个或多个腔室中。 在特定实施例中，多个有线电极可以通过单个引导护套装置输送到心室中。 这种系统可以用于将一个或多个有线电极递送到左心房，左心室或两者的内壁。

    SYSTEMS AND METHODS FOR MAKING AND USING INTRAVASCULAR ULTRASOUND IMAGING SYSTEMS WITH SEALED IMAGING CORES
    54.
    发明申请
    SYSTEMS AND METHODS FOR MAKING AND USING INTRAVASCULAR ULTRASOUND IMAGING SYSTEMS WITH SEALED IMAGING CORES 审中-公开
    用于制造和使用具有密封成像系统的静脉超声成像系统的系统和方法

    公开(公告)号：US20110071400A1

    公开(公告)日：2011-03-24

    申请号：US12565632

    申请日：2009-09-23

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

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

    IPC分类号： A61B8/14

    CPC分类号： A61B8/4461 ,  A61B8/12 ,  A61B8/445 ,  H02K3/26 ,  H02K5/132 ,  H02K7/14 ,  H02K21/12

    摘要： A catheter assembly for an intravascular ultrasound system includes a catheter insertable into patient vasculature via a guidewire. A watertight imaging core is disposed in the distal end of the catheter. The imaging core includes a motor, at least one fixed transducer, and a signal redirection unit. The motor includes a magnet configured and arranged to rotate upon generation of a magnetic field by magnetic field windings. The signal redirection unit is coupled to the magnet such that rotation of the magnet causes a corresponding rotation of at least a portion of the signal redirection unit. The signal redirection unit includes a tilted mirror that redirects acoustic signals transmitted from the fixed transducer to patient tissue. At least one transducer conductor and at least one stator conductor are electrically coupled to the imaging core and in electrical communication with the proximal end of the catheter.

    摘要翻译： 用于血管内超声系统的导管组件包括可经由导丝插入患者脉管系统中的导管。 在导管的远端设置防水成像芯。 成像芯包括电机，至少一个固定换能器和信号重定向单元。 电动机包括构造和布置成在通过磁场绕组产生磁场时旋转的磁体。 信号重定向单元耦合到磁体，使得磁体的旋转引起信号重定向单元的至少一部分的相应旋转。 信号重定向单元包括将从固定换能器发送的声信号重定向到患者组织的倾斜镜。 至少一个换能器导体和至少一个定子导体电耦合到成像芯并与导管的近端电连通。

    Perfusion balloon and radioactive wire delivery system
    56.
    发明授权
    Perfusion balloon and radioactive wire delivery system 有权
    灌注气球和放射线输送系统

    公开(公告)号：US06398708B1

    公开(公告)日：2002-06-04

    申请号：US09181111

    申请日：1998-10-28

    申请人： Roger N. Hastings ,  Michael J. Urick

    发明人： Roger N. Hastings ,  Michael J. Urick

    IPC分类号： A61N500

    CPC分类号： A61M25/0127 ,  A61M25/1002 ,  A61M2025/0177 ,  A61M2025/1047 ,  A61M2025/105 ,  A61M2025/1095 ,  A61N5/1002 ,  A61N2005/1003

    摘要： A catheter capable of irradiating blood vessel walls to inhibit restenosis after angioplasty. Catheters are capable of simultaneous irradiation, angioplasty, and in some devices, drug infusion. Preferred catheters include a helical perfusion balloon having strand windings spaced apart when inflated and defining a perfusion lumen within. A tubular sheath over the helical strands and distal shaft region is used in some embodiments and defines an outer wall for the perfusion lumen. A spiral, inter-strand space is defined between the sheath outer wall and the blood vessel inner wall, providing a confined volume for controlled delivery of drugs to the vessel wall in conjunction with irradiation. A device having a radiation wire, distally closed-end tube is provided. A device having a radiation wire open ended tube terminating proximally of the perfusion lumen is also provided.

    摘要翻译： 导管能够照射血管壁以抑制血管成形术后的再狭窄。 导管能够同时照射，血管成形术，并在某些装置中进行药物输注。 优选的导管包括螺旋灌注球囊，其具有在充气时间隔开并且在其内限定灌注内腔的股线绕组。 在一些实施例中使用螺旋股线和远端轴区域上的管状护套，并且限定了用于灌注腔的外壁。 在护套外壁和血管内壁之间限定了螺旋形的股间空间，提供了限制的体积，用于将药物与照射相结合地控制输送到血管壁。 提供了一种具有辐射线，远端封闭端管的装置。 还提供了具有在灌注腔的近侧终止的放射线开口管的装置。

    Cardiac assist device using field controlled fluid
    58.
    发明授权
    Cardiac assist device using field controlled fluid 失效
    使用现场控制流体的心脏辅助装置

    公开(公告)号：US06251061B1

    公开(公告)日：2001-06-26

    申请号：US09149941

    申请日：1998-09-09

    申请人： Roger N. Hastings ,  Bruce Persson ,  Dnyanesh Talpade ,  Daniel M. LaFontaine

    发明人： Roger N. Hastings ,  Bruce Persson ,  Dnyanesh Talpade ,  Daniel M. LaFontaine

    IPC分类号： A61F202

    CPC分类号： A61M1/1055 ,  A61M1/1068 ,  A61M1/1086 ,  A61M1/12 ,  A61M2205/33 ,  A61M2205/3303

    摘要： A cardiac assist device and method of use for assisting the function of a heart. The assist device includes a compressor positioned against the epicardial wall of the heart and a field generator for driving a fluid coupled to the compressor to exert pressure on the heart. The field generator may be a magnetic field generator and the fluid coupled to the compressor may be a ferrofluid. The compressor may include two containment regions containing ferrofluid on opposite sides of the heart, and a pair of compression portions coupled to the containment regions. The filled generator may be electromagnetic which includes two electromagnets having corresponding core portions and corresponding coils. The electromagnets may be disposed with their north and south poles in alignment and separated by a gap to allow relative movement. The electromagnets may be external or internal to the body.

    摘要翻译： 一种用于辅助心脏功能的心脏辅助装置和方法。 所述辅助装置包括抵靠心脏心外壁的压缩机和用于驱动与压缩机相连的流体以对心脏施加压力的场发生器。 场发生器可以是磁场发生器，并且耦合到压缩机的流体可以是铁磁流体。 压缩机可以包括在心脏的相对侧上包含铁磁流体的两个容纳区域和耦合到容纳区域的一对压缩部分。 填充发电机可以是电磁的，其包括具有对应的芯部分和相应线圈的两个电磁体。 电磁铁可以配置成使它们的北极和南极对齐并且被间隙分开以允许相对运动。 电磁铁可以是外部的或内部的。

    Method of and system for controlling magnetic elements in the body using a gapped toroid magnet
    59.
    发明授权
    Method of and system for controlling magnetic elements in the body using a gapped toroid magnet 失效
    使用有间隙的环形磁铁来控制身体中的磁性元件的方法和系统

    公开(公告)号：US6148823A

    公开(公告)日：2000-11-21

    申请号：US271424

    申请日：1999-03-17

    申请人： Roger N. Hastings

    发明人： Roger N. Hastings

    IPC分类号： A61B19/00 ,  A61M37/00

    CPC分类号： A61B34/73 ,  A61B34/70 ,  A61B2034/732

    摘要： A system for controlling a magnetic element within a selected region of a patient's body includes a magnet assembly comprising first and second mutually attracting, opposed magnet faces separated by a gap; and a magnet support for supporting the magnet assembly adjacent the selected region of the patient's body to apply a magnetic field within the selected region, and moving the gap of the magnet assembly relative to the selected region of the patient's body to change the magnetic field within the selected region. The method A method of controlling a magnetic element within a selected region of a patient's body, the method comprising the controlled application of a magnetic field to the magnetic element in the selected region with a pair of mutually attracting opposed magnets separated by a gap.

    摘要翻译： 用于控制患者身体的选定区域内的磁性元件的系统包括：磁体组件，其包括由间隙分开的第一和第二相互吸引的相对磁体面; 以及磁体支撑件，用于支撑邻近患者身体的选定区域的磁体组件，以在所选择的区域内施加磁场，并且相对于患者身体的选定区域移动磁体组件的间隙，以改变其内部的磁场 所选区域。 方法一种在患者身体的选定区域内控制磁性元件的方法，所述方法包括通过由间隙分开的一对相互吸引的相对的磁体来控制对选定区域中的磁性元件施加磁场。