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    Multi-material abrading head for atherectomy devices having laterally displaced center of mass
    5.
    发明授权
    Multi-material abrading head for atherectomy devices having laterally displaced center of mass 有权
    用于具有横向偏移质心的粥样斑块切除装置的多材料研磨头

    公开(公告)号：US08795303B2

    公开(公告)日：2014-08-05

    申请号：US12363914

    申请日：2009-02-02

    申请人： Jeffrey A. McBroom ,  Larry A. Waller

    发明人： Jeffrey A. McBroom ,  Larry A. Waller

    IPC分类号： A61B17/22 ,  A61B17/3207 ,  A61B17/32

    CPC分类号： A61B17/320758 ,  A61B17/3207 ,  A61B2017/320004 ,  A61B2017/320733 ,  A61B2017/320766

    摘要： An abrading head for a high-speed rotation atherectomy device is disclosed. The head has its center of mass laterally displaced from the rotational axis of the drive shaft. As the drive shaft spins, centrifugal force forces the abrading head radially outward. At high speeds, and the abrasive portion of the head may subtend an abrading cylinder larger than at low speeds or at rest. The abrading head has two components, each having a different density. The connection portion may be an incomplete cylinder, which fastens onto the drive shaft, and may be a relatively low density metal, such as stainless steel. The eccentric portion may be a relatively high density metal, such as tungsten or tantalum, and is attached to the connection portion. The eccentric portion has all or most of its mass on one side of the rotation axis of the drive shaft, providing a larger separation between the center of mass of the abrading head and the rotational axis of the drive shaft than if the abrading head were made from only one material.

    摘要翻译： 公开了一种用于高速旋转粥样斑块切除装置的研磨头。 头部具有从驱动轴的旋转轴线横向移位的质心。 当驱动轴旋转时，离心力迫使研磨头径向向外。 在高速下，头部的研磨部分可以对着大于低速或静止的研磨缸。 研磨头具有两个部件，每个部件具有不同的密度。 连接部分可以是紧固在驱动轴上的不完整的气缸，并且可以是相对低密度的金属，例如不锈钢。 偏心部分可以是相对高密度的金属，例如钨或钽，并且附着到连接部分。 偏心部分在驱动轴的旋转轴线的一侧上具有全部或大部分的质量，在研磨头的质心与驱动轴的旋转轴线之间提供了比如果研磨头被制成的更大间隔 只有一种材料。

    Introducer with location marker
    6.
    发明授权
    Introducer with location marker 有权
    介绍者与位置标记

    公开(公告)号：US06277108B1

    公开(公告)日：2001-08-21

    申请号：US09326901

    申请日：1999-06-04

    申请人： Jeffrey A. McBroom ,  David A. Liebl

    发明人： Jeffrey A. McBroom ,  David A. Liebl

    IPC分类号： A61M25098

    CPC分类号： A61M25/0108 ,  A61M25/0668

    摘要： An introducer system has a splittable sheath which includes a marker band. The marker band allows the sheath to be viewed under fluoroscopy while inserted within a patient, and while still allowing a medical device to be introduced therethrough. In addition, the marker band allows for the sheath to be split using a slitter in a longitudinal direction which permits the sheath to be removed from the venous system without having to be withdrawn over an end of the medical device. The marker band has perforations, comprises a mesh structure, or can comprise a braid structure, which each allow for the sheath, and the marker band, to be slittable.

    摘要翻译： 导引器系统具有包括标记带的可分离鞘。 标记带允许在插入患者体内时在透视下观察护套，并且仍然允许将医疗装置引入其中。 此外，标记带允许使用沿纵向方向的分切机分割护套，这允许护套从静脉系统移除而不必在医疗装置的一端被抽出。 标记带具有穿孔，包括网状结构，或者可以包括编织结构，每个允许护套和标记带可被切割。

    MULTI-MATERIAL ABRADING HEAD FOR ATHERECTOMY DEVICES HAVING LATERALLY DISPLACED CENTER OF MASS
    7.
    发明申请
    MULTI-MATERIAL ABRADING HEAD FOR ATHERECTOMY DEVICES HAVING LATERALLY DISPLACED CENTER OF MASS 有权
    具有大量离散中心位置的装置的多材料覆盖头

    公开(公告)号：US20100198239A1

    公开(公告)日：2010-08-05

    申请号：US12363914

    申请日：2009-02-02

    申请人： Jeffrey A. McBroom ,  Larry A. Waller

    发明人： Jeffrey A. McBroom ,  Larry A. Waller

    IPC分类号： A61B17/22

    CPC分类号： A61B17/320758 ,  A61B17/3207 ,  A61B2017/320004 ,  A61B2017/320733 ,  A61B2017/320766

    摘要： An abrading head for a high-speed rotation atherectomy device is disclosed. The head has its center of mass laterally displaced from the rotational axis of the drive shaft. As the drive shaft spins, centrifugal force forces the abrading head radially outward. At high speeds, and the abrasive portion of the head may subtend an abrading cylinder larger than at low speeds or at rest. The abrading head has two components, each having a different density. The connection portion may be an incomplete cylinder, which fastens onto the drive shaft, and may be a relatively low density metal, such as stainless steel. The eccentric portion may be a relatively high density metal, such as tungsten or tantalum, and is attached to the connection portion. The eccentric portion has all or most of its mass on one side of the rotation axis of the drive shaft, providing a larger separation between the center of mass of the abrading head and the rotational axis of the drive shaft than if the abrading head were made from only one material.

    摘要翻译： 公开了一种用于高速旋转粥样斑块切除装置的研磨头。 头部具有从驱动轴的旋转轴线横向移位的质心。 当驱动轴旋转时，离心力迫使研磨头径向向外。 在高速下，头部的研磨部分可以对着大于低速或静止的研磨缸。 研磨头具有两个部件，每个部件具有不同的密度。 连接部分可以是紧固在驱动轴上的不完整的气缸，并且可以是相对低密度的金属，例如不锈钢。 偏心部分可以是相对高密度的金属，例如钨或钽，并且附着到连接部分。 偏心部分在驱动轴的旋转轴线的一侧上具有全部或大部分的质量，在研磨头的质心与驱动轴的旋转轴线之间提供了比如果研磨头被制成的更大间隔 只有一种材料。

    ROTATIONAL ATHERECTOMY DEVICE WITH COUNTERWEIGHTING
    8.
    发明申请
    ROTATIONAL ATHERECTOMY DEVICE WITH COUNTERWEIGHTING 有权
    具有反转功能的旋转自动装置

    公开(公告)号：US20090105736A1

    公开(公告)日：2009-04-23

    申请号：US11876891

    申请日：2007-10-23

    申请人： Dmitriy Prudnikov ,  Larry A. Walter ,  Jeffrey A. McBroom

    发明人： Dmitriy Prudnikov ,  Larry A. Walter ,  Jeffrey A. McBroom

    IPC分类号： A61B17/22

    CPC分类号： A61B17/320758 ,  A61B17/3207 ,  A61B2017/22038 ,  A61B2017/320004 ,  A61B2017/320766

    摘要： The invention provides a rotational atherectomy device having a flexible, elongated, rotatable drive shaft with an abrasive section comprising an enlarged diameter section of the drive shaft or, alternatively, a solid abrasive crown which may be attached to the drive shaft. The device further comprises a proximal and/or a distal counterweight attached to the drive shaft, spaced from the abrasive section wherein each counterweight has its center of mass offset from the longitudinal axis of the drive shaft to stimulate orbital motion by the abrasive section. When placed within an artery against stenotic tissue and rotated at sufficiently high speeds (e.g., in the range of about 20,000 rpm to about 200,000 rpm) the orbiting nature of the abrasive section causes such section to rotate as to open the stenotic lesion to a diameter substantially larger than the resting outer diameter of the abrasive section.

    摘要翻译： 本发明提供了一种具有柔性，细长的可旋转的驱动轴的旋转粥样斑块切除装置，其具有包括驱动轴的扩大直径部分的研磨部分，或者可以附接到驱动轴的固体研磨冠。 该装置还包括附接到驱动轴的近端和/或远侧配重，与研磨部分间隔开，其中每个配重的质心偏离驱动轴的纵向轴线，以刺激研磨部分的轨道运动。 当将动脉置于动脉内并以足够高的速度（例如，在约20,000rpm至约200,000rpm的范围内）旋转时，研磨部分的旋转性质导致该部分旋转以将狭窄病变开放至直径 基本上大于研磨部分的静止外径。

    Rotational atherectomy device with counterweighting
    10.
    发明授权
    Rotational atherectomy device with counterweighting 有权
    旋转性粥样斑块切除装置配重

    公开(公告)号：US08348965B2

    公开(公告)日：2013-01-08

    申请号：US11876891

    申请日：2007-10-23

    申请人： Dmitriy Prudnikov ,  Larry A. Walter ,  Jeffrey A. McBroom

    发明人： Dmitriy Prudnikov ,  Larry A. Walter ,  Jeffrey A. McBroom

    IPC分类号： A61B17/22

    CPC分类号： A61B17/320758 ,  A61B17/3207 ,  A61B2017/22038 ,  A61B2017/320004 ,  A61B2017/320766

    摘要： The invention provides a rotational atherectomy device having a flexible, elongated, rotatable drive shaft with an abrasive section comprising an enlarged diameter section of the drive shaft or, alternatively, a solid abrasive crown which may be attached to the drive shaft. The device further comprises a proximal and/or a distal counterweight attached to the drive shaft, spaced from the abrasive section wherein each counterweight has its center of mass offset from the longitudinal axis of the drive shaft to stimulate orbital motion by the abrasive section. When placed within an artery against stenotic tissue and rotated at sufficiently high speeds (e.g., in the range of about 20,000 rpm to about 200,000 rpm) the orbiting nature of the abrasive section causes such section to rotate as to open the stenotic lesion to a diameter substantially larger than the resting outer diameter of the abrasive section.

    摘要翻译： 本发明提供了一种具有柔性，细长的可旋转的驱动轴的旋转粥样斑块切除装置，其具有包括驱动轴的扩大直径部分的研磨部分，或者可以附接到驱动轴的固体研磨冠。 该装置还包括附接到驱动轴的近端和/或远侧配重，与研磨部分间隔开，其中每个配重的质心偏离驱动轴的纵向轴线，以刺激研磨部分的轨道运动。 当将动脉置于动脉内并以足够高的速度（例如，在约20,000rpm至约200,000rpm的范围内）旋转时，研磨部分的旋转性质导致该部分旋转以将狭窄病变开放至直径 基本上大于研磨部分的静止外径。