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    • 4. 发明授权
    • Expandable atherectomy burr and method of ablating an occlusion from a
patient's blood vessel
    • 可扩展的粥样斑块切除术和从患者血管中消除闭塞的方法
    • US06096054A
    • 2000-08-01
    • US178449
    • 1998-10-23
    • Mark WyzgalaDonald BaumgartenLucas S. GordonEric B. HamiltonMatt HefnerTom HiblarEdward Wulfman
    • Mark WyzgalaDonald BaumgartenLucas S. GordonEric B. HamiltonMatt HefnerTom HiblarEdward Wulfman
    • A61B17/00A61B17/22A61B17/32
    • A61B17/320725A61B17/320758A61B2017/00557A61B2017/00867A61B2017/320004A61B2017/320733
    • An atherectomy burr has an operating diameter that is larger than the diameter of a catheter in which the burr is routed. The burr may include a polymeric balloon that is coated with an abrasive and that expands when the burr is rotated. Alternatively, the burr may include a polymeric tube that is coated with an abrasive and secured to the proximal end of the burr. When the burr is rotated, the polymeric tube expands by centrifugal force. Alternatively, the burr may comprise a metallic strip wound over a mandrel. When the strip is tightly coiled to the mandrel, its outer diameter decreases. The outer diameter of the burr increases as the metallic strip expands. In addition, the burr can be formed as a wire spring wound over a drive tube. The distal end of the spring is coupled to a nose cone that can move within a distal lumen in the drive tube. The maximum expansion of the burr is controlled by the distance that the nose cone can be retracted into the lumen. In addition, the present invention includes a burr having an indexable outer diameter. Various indexing mechanisms are disclosed for selectively increasing or decreasing the distance between a proximal and distal end of the burr. As the length of the burr changes, the outer diameter of a number of cutting blades is changed to allow a physician to create different sized lumens in a patient's vessel.
    • 粥样斑块切除术毛刺的操作直径大于其中布置毛刺的导管的直径。 毛刺可以包括涂覆有磨料的聚合物气球,并且当毛刺旋转时膨胀。 或者,毛刺可以包括涂覆有研磨剂并固定到毛刺的近端的聚合物管。 当毛刺旋转时,聚合物管通过离心力膨胀。 或者,毛刺可以包括缠绕在心轴上的金属条。 当条带紧紧地卷绕到心轴上时,其外径减小。 毛边的外径随着金属条扩张而增加。 此外,毛刺可以形成为卷绕在驱动管上的线弹簧。 弹簧的远端联接到能够在驱动管内远端管腔内移动的鼻锥体。 毛刺的最大膨胀由鼻锥可以缩回到内腔的距离来控制。 此外,本发明包括具有可转位外径的毛刺。 公开了用于选择性地增加或减小毛刺的近端和远端之间的距离的各种分度机构。 随着毛刺的长度改变,许多切割刀片的外径被改变以允许医师在患者的血管中产生不同大小的腔。
    • 5. 发明授权
    • Expandable atherectomy burr
    • 扩张性粥样斑块切除术
    • US06416526B1
    • 2002-07-09
    • US09589861
    • 2000-06-08
    • Mark WyzgalaDonald BaumgartenLucas S. GordonEric B. HamiltonMatt HefnerTom HiblarEdward Wulfman
    • Mark WyzgalaDonald BaumgartenLucas S. GordonEric B. HamiltonMatt HefnerTom HiblarEdward Wulfman
    • A61B1732
    • A61B17/320725A61B17/320758A61B2017/00557A61B2017/00867A61B2017/320004A61B2017/320733
    • An atherectomy burr has an operating diameter that is larger than the diameter of a catheter in which the burr is routed. The burr may include a polymeric balloon that is coated with an abrasive and that expands when the burr is rotated. Alternatively, the burr may include a polymeric tube that is coated with an abrasive and secured to the proximal end of the burr. When the burr is rotated, the polymeric tube expands by centrifugal force. Alternatively, the burr may comprise a metallic strip wound over a mandrel. When the strip is tightly coiled to the mandrel, its outer diameter decreases. The outer diameter of the burr increases as the metallic strip expands. In addition, the burr can be formed as a wire spring wound over a drive tube. The distal end of the spring is coupled to a nose cone that can move within a distal lumen in the drive tube. The maximum expansion of the burr is controlled by the distance that the nose cone can be retracted into the lumen. In addition, the present invention includes a burr having an indexable outer diameter. Various indexing mechanisms are disclosed for selectively increasing or decreasing the distance between a proximal and distal end of the burr. As the length of the burr changes, the outer diameter of a number of cutting blades is changed to allow a physician to create different sized lumens in a patient's vessel.
    • 粥样斑块切除术毛刺的操作直径大于其中布置毛刺的导管的直径。 毛刺可以包括涂覆有磨料的聚合物气球,并且当毛刺旋转时膨胀。 或者,毛刺可以包括涂覆有研磨剂并固定到毛刺的近端的聚合物管。 当毛刺旋转时,聚合物管通过离心力膨胀。 或者,毛刺可以包括缠绕在心轴上的金属条。 当条带紧紧地卷绕到心轴上时,其外径减小。 毛边的外径随着金属条扩张而增加。 此外,毛刺可以形成为卷绕在驱动管上的线弹簧。 弹簧的远端联接到能够在驱动管内远端管腔内移动的鼻锥体。 毛刺的最大膨胀由鼻锥可以缩回到内腔的距离来控制。 此外,本发明包括具有可转位外径的毛刺。 公开了用于选择性地增加或减小毛刺的近端和远端之间的距离的各种分度机构。 随着毛刺的长度改变,许多切割刀片的外径被改变以允许医师在患者的血管中产生不同大小的腔。
    • 9. 发明授权
    • Atherectomy burr including a bias wire
    • 动脉粥样硬化斑块包括偏心线
    • US06299623B1
    • 2001-10-09
    • US09589993
    • 2000-06-08
    • Edward Wulfman
    • Edward Wulfman
    • A61B1722
    • A61B17/320758A61B2017/22039A61B2017/320004
    • An ablation device (10) includes a drive shaft (12) and an ablation burr (14) secured to the distal end of the drive shaft thereto. A guide wire (18) extends through the drive shaft and the ablation burr. To direct the ablation burr laterally within a patient's vessel, the atherectomy device includes one or more bias wires (30) that extend generally parallel to and spaced from the longitudinal axis of the drive shaft such that engagement of the bias wires against an obstruction in a patient's vessel will force the ablation burr to move laterally within a patient's blood vessel. To rotate the bias wires in a patient's blood vessel, the bias wire may be coupled to a catheter surrounding the drive shaft. Alternatively, the catheter is designed to engage the bias wires when the drive shaft is retracted into the catheter. The bias wires will then rotate as the catheter is rotated.
    • 消融装置(10)包括固定到驱动轴的远端的驱动轴(12)和消融毛刺(14)。 引导线(18)延伸穿过驱动轴和消融毛刺。 为了将消融毛刺横向地引导到患者的血管内,动脉粥样斑块切除装置包括一个或多个偏置线(30),该偏置线大致平行于驱动轴的纵向轴线延伸并且与驱动轴的纵向轴线间隔开,使得偏置线与阻塞 患者的血管将迫使消融毛刺在患者的血管内横向移动。为了使患者血管中的偏置线旋转,偏置线可以联接到围绕驱动轴的导管。 或者,当驱动轴缩回到导管中时,导管被设计成接合偏置线。 然后当导管旋转时,偏置线将旋转。
    • 10. 发明授权
    • Compressible atherectomy burr
    • 可压缩粥样斑块切除术
    • US06800083B2
    • 2004-10-05
    • US09829486
    • 2001-04-09
    • Thomas J. HiblarRobert L. BarryEdward WulfmanZihong GuoVerivada Chandru Chandrasekaran
    • Thomas J. HiblarRobert L. BarryEdward WulfmanZihong GuoVerivada Chandru Chandrasekaran
    • A61B1732
    • A61B17/320758A61B17/320725A61B2017/320004
    • A rotational ablation atherectomy device including a flexible drive shaft and a compressible burr that may be inserted and extracted from a patient using a catheter having a diameter that is smaller than the operational diameter of the burr. In one embodiment, the burr includes a nose portion coupled to the drive shaft and one or more flexible abrasive disks disposed rearwardly from the nose portion. The flexible disks are foldable to be slidably received within a catheter. In another embodiment, the burr includes a support member coupled to the drive shaft, the support member having a resilient panel that spirals outwardly, forming a generally cylindrical ablation surface. The flexible panel can be elastically urged toward the support member and slidably inserted into the catheter. In a third embodiment, the burr includes a plurality of struts that are coupled to the drive shaft. An elastically compressible body disposed between the struts permits the struts to flex inwardly to reduce the burr diameter. In another embodiment, the burr includes a plurality of flexible wires attached at proximal and distal ends to the drive shaft. An abrasive sheath is disposed over the wires. The wires can be bent inwardly to compress the burr and re-expanded by rotation of the burr. In another embodiment, the burr comprises a nose portion and a resilient shell having a compressible, larger diameter abrasive section disposed at the proximal end of the nose portion.
    • 包括柔性驱动轴和可压缩毛刺的旋转消融粥样斑块切除装置,其可以使用直径小于毛刺的操作直径的导管从患者插入和拔出。 在一个实施例中,毛刺包括联接到驱动轴的鼻部和从鼻部向后设置的一个或多个柔性研磨盘。 柔性盘可折叠成可滑动地容纳在导管内。 在另一个实施例中,毛刺包括联接到驱动轴的支撑构件,支撑构件具有向外螺旋的弹性面板,形成大致圆柱形的烧蚀表面。 柔性面板可以弹性地推向支撑构件并且可滑动地插入导管中。 在第三实施例中,毛刺包括联接到驱动轴的多个支柱。 设置在支柱之间的可弹性压缩体允许支柱向内弯曲以减小毛刺直径。 在另一个实施例中,毛刺包括在近端和远端附接到驱动轴的多个柔性线。 研磨护套设置在电线上。 电线可以向内弯曲以压缩毛刺并通过毛刺的旋转而重新膨胀。 在另一个实施例中,毛刺包括鼻部和弹性壳,弹性壳具有设置在鼻部的近端的可压缩的较大直径的研磨部。