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48 条记录 (耗时 0.056 秒)

    Expandable ablation burr
    41.
    发明授权
    Expandable ablation burr 失效
    可扩展消融毛刺

    公开(公告)号：US07252674B2

    公开(公告)日：2007-08-07

    申请号：US10770336

    申请日：2004-02-02

    申请人： Mark H. Wyzgala ,  Eric B. Hamilton ,  Tom J. Hiblar ,  Lixiao Wang ,  John J. Chen ,  Irina Nazarova ,  Nancy L. Haig ,  Sheng-Ping Zhong

    发明人： Mark H. Wyzgala ,  Eric B. Hamilton ,  Tom J. Hiblar ,  Lixiao Wang ,  John J. Chen ,  Irina Nazarova ,  Nancy L. Haig ,  Sheng-Ping Zhong

    IPC分类号： A61B17/32

    CPC分类号： A61B17/320725 ,  A61B17/320758 ,  A61B2017/00557 ,  A61B2017/00867 ,  A61B2017/320004 ,  A61B2017/320733

    摘要： 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 an expandable polymeric balloon having a partially abrasive exterior surface. The maximum expansion of the burr is controlled by an expansion mechanism. Various mechanisms are disclosed for controlling the maximum diameter of the burr thus preventing the burr from over expanding. In addition, the present invention includes systems that are pulled proximally to remove portions of a lesion located in a patient's vasculature. The system includes an ablation burr that has abrasive disposed on the proximal end. The burr may create a seal when expanded to block the ablated particulate so that an aspiration system can remove the particulate from the vasculature. Alternatively, the burr system may include a self expanding seal that is deployed out of the aspiration sheath.

    摘要翻译： 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。 毛刺可以包括具有部分研磨外表面的可膨胀聚合气囊。 毛刺的最大膨胀由膨胀机构控制。 公开了用于控制毛刺的最大直径的各种机构，从而防止毛刺过度膨胀。 另外，本发明还包括向近侧拉动以去除位于病人脉管系统中的病变部分的系统。 该系统包括具有设置在近端的磨料的消融毛刺。 当膨胀时，毛刺可以产生密封，以阻止消融的颗粒，使得吸气系统可以从脉管系统中除去颗粒。 或者，毛刺系统可以包括从抽吸鞘部署出来的自膨胀密封件。

    Expandable ablation burr
    42.
    发明授权
    Expandable ablation burr 失效
    可扩展消融毛刺

    公开(公告)号：US06685718B1

    公开(公告)日：2004-02-03

    申请号：US09629771

    申请日：2000-07-31

    申请人： Mark H. Wyzgala ,  Eric B. Hamilton ,  Thomas J. Hiblar ,  Lixiao Wang ,  John J. Chen ,  Irina Nazarova ,  Nancy L. Haig ,  Sheng-Ping Zhong

    发明人： Mark H. Wyzgala ,  Eric B. Hamilton ,  Thomas J. Hiblar ,  Lixiao Wang ,  John J. Chen ,  Irina Nazarova ,  Nancy L. Haig ,  Sheng-Ping Zhong

    IPC分类号： A61B1732

    CPC分类号： A61B17/320725 ,  A61B17/320758 ,  A61B2017/00557 ,  A61B2017/00867 ,  A61B2017/320004 ,  A61B2017/320733

    摘要： 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. When the burr is rotated, the polymeric tube expands by centrifugal force. The maximum expansion of the burr is controlled by an expansion mechanism. Various mechanisms are disclosed for controlling the maximum diameter of the burr thus preventing the burr from over expanding. In addition, the present invention includes a system for preventing the loose ablated particulate from reembolizing in the distal vasculature. The system includes an ablation burr that has abrasive disposed on the proximal end that is pulled back toward the guide catheter to ablate the lesion. The burr creates a seal when expanded to block the ablated particulate so that the aspiration system can remove the particulate from the patient vessel or stent. Alternatively, the burr system may include a self expanding seal that is deployed out of the aspiration sheath so that a slight vacuum can remove the large loose particulate form, the patient's vessel or stent.

    摘要翻译： 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。 当毛刺旋转时，聚合物管通过离心力膨胀。 毛刺的最大膨胀由膨胀机构控制。 公开了用于控制毛刺的最大直径的各种机构，从而防止毛刺过度膨胀。 此外，本发明还包括一种用于防止松散的消融颗粒在远端脉管系统中再栓塞的系统。 该系统包括消融毛刺，其具有设置在近端上的磨料，其被拉回导向导管以烧蚀病变。 当膨胀时，毛刺产生密封以阻挡消融的颗粒，使得吸气系统可以从患者的血管或支架中移除颗粒。 或者，毛刺系统可以包括从抽吸鞘部署出来的自膨胀密封，使得轻微的真空可以从患者的血管或支架中移除大的松散颗粒。

    Medical devices and methods including cooling balloons having nanotubes
    46.
    发明授权
    Medical devices and methods including cooling balloons having nanotubes 有权
    包括具有纳米管的冷却气囊的医疗装置和方法

    公开(公告)号：US07758572B2

    公开(公告)日：2010-07-20

    申请号：US10850087

    申请日：2004-05-20

    申请人： Jan Weber ,  John M. Hokanson ,  John J. Chen

    发明人： Jan Weber ,  John M. Hokanson ,  John J. Chen

    IPC分类号： A61B18/18 ,  A61M29/00

    CPC分类号： A61M25/104 ,  A61F7/123 ,  A61L29/126 ,  A61M25/10 ,  B82Y5/00 ,  B82Y30/00

    摘要： Medical systems and methods including balloons having nanotubes are disclosed. In some embodiments, a medical system includes an elongated shaft, and an expandable balloon carried by the shaft and including nanotubes. The medical system is capable of cooling the balloon to less than about 37° C. In some embodiments, a method includes providing a medical device having an elongated shaft, and an expandable balloon carried by the elongated shaft and including nanotubes; and cooling the balloon to less than about 37° C.

    摘要翻译： 公开了包括具有纳米管的气囊的医疗系统和方法。 在一些实施例中，医疗系统包括细长轴和由轴承载并包括纳米管的可膨胀气囊。 医疗系统能够将球囊冷却到小于约37℃。在一些实施例中，一种方法包括提供具有细长轴的医疗装置和由细长轴承载并包括纳米管的可膨胀气囊; 并将气球冷却至小于约37℃。