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    Devices, systems, and methods for cutting and removing occlusive material from a body lumen
    24.
    发明授权
    Devices, systems, and methods for cutting and removing occlusive material from a body lumen 有权
    用于从体腔切割和去除闭塞性材料的装置，系统和方法

    公开(公告)号：US09492193B2

    公开(公告)日：2016-11-15

    申请号：US12925466

    申请日：2010-10-22

    申请人： John T. To ,  Christopher James Danek

    发明人： John T. To ,  Christopher James Danek

    IPC分类号： A61B17/22 ,  A61B17/3207 ,  A61B17/00

    CPC分类号： A61B17/320758 ,  A61B17/22 ,  A61B17/320783 ,  A61B2017/003 ,  A61B2017/00318 ,  A61B2017/00331 ,  A61B2017/00685 ,  A61B2017/22038 ,  A61B2017/22039 ,  A61B2017/22041 ,  A61B2017/22044 ,  A61B2017/22068 ,  A61B2017/22094 ,  A61B2017/320716 ,  A61B2017/320741 ,  A61B2017/320775 ,  A61B2090/3735 ,  A61B2090/3784 ,  A61M25/0152 ,  A61M25/0155

    摘要： A vascular device is provided having a catheter body and a rotatable cutter assembly located at the distal end of the catheter body. The cutter assembly has at least one helical cutting surface within a housing that is coupled by a torque shaft to a drive mechanism. A conveyor mechanism helically wound about the torque shaft conveys occlusive material conveyed into the housing by the helical cutting blade further proximally along the catheter body for discharge without supplement of a vacuum pump. The catheter body is manipulated to insert the distal end of the catheter body within a body lumen and advance the distal end of the catheter body toward the occlusive material. The drive mechanism is operated to rotate the helical cutting surface to cut and convey the occlusive material from the body lumen proximally into the housing and to convey the occlusive material conveyed into the housing by the helical cutting surface further proximally along the catheter body by the conveyor mechanism for discharge without supplement of a vacuum pump. The distal end of the catheter body is deflected and rotated to sweep the cutter assembly in an arc about the center axis of the catheter body to cut occlusive material in a region larger than the outside diameter of the cutter assembly.

    摘要翻译： 提供了一种血管装置，其具有位于导管主体的远端处的导管主体和可旋转切割器组件。 切割器组件具有在壳体内的至少一个螺旋切割表面，该螺旋切割表面由扭矩轴联接到驱动机构。 螺旋缠绕在扭矩轴上的传送机构通过螺旋切割刀片沿着导管主体向近侧传送输送到壳体中的封闭材料，用于在不补充真空泵的情况下进行排放。 操纵导管主体以将导管主体的远端插入体腔内并将导管主体的远端推向封闭材料。 驱动机构被操作以旋转螺旋切割表面，以将封闭材料从体腔近端切割并输送到壳体中，并且通过螺旋切割表面沿着导管主体通过输送器传送进入壳体的闭塞材料 没有补充真空泵的排放机构。 导管主体的远端被偏转并旋转以围绕导管主体的中心轴线围绕弧线扫掠切割器组件，以在大于切割器组件的外径的区域中切割闭塞性材料。

    Devices and methods for arched roof cutters
    25.
    发明授权
    Devices and methods for arched roof cutters 有权

    公开(公告)号：US08702739B2

    公开(公告)日：2014-04-22

    申请号：US13245816

    申请日：2011-09-26

    申请人： David Batten ,  John T. To ,  Hiep Nguyen

    发明人： David Batten ,  John T. To ,  Hiep Nguyen

    IPC分类号： A61B17/32

    CPC分类号： A61B17/32002 ,  A61B17/1615 ,  A61B17/1617 ,  A61B17/1671 ,  A61B2017/320064

    摘要： Disclosed herein are tissue-removal devices and methods for treating spinal diseases using such devices. The tissue-removal devices may comprise a cable and/or extendable elements with a retracted and a deployed configuration. The cable and/or extendable elements may be distally supported and restrained by a support element such that the support element may be pushed transversely away when the extendable element is distally extended into its deployed configuration. An annular cutting element may be provided about the distal end of the extendable element or the support element. Various configurations of the extendable and support elements are described herein, as well as methods of using tissue-removal devices with extendable and support elements coupled by an annular cutting element for treating spinal diseases.

    METHOD AND DEVICES FOR TREATING SPINAL STENOSIS
    28.
    发明申请
    METHOD AND DEVICES FOR TREATING SPINAL STENOSIS 有权
    用于治疗脊柱狭窄的方法和装置

    公开(公告)号：US20110288553A1

    公开(公告)日：2011-11-24

    申请号：US12953278

    申请日：2010-11-23

    申请人： Lex P. Jansen ,  John W. Davis ,  John T. To ,  Singfatt Chin ,  Myra I. L. Fabro

    发明人： Lex P. Jansen ,  John W. Davis ,  John T. To ,  Singfatt Chin ,  Myra I. L. Fabro

    IPC分类号： A61B17/16

    CPC分类号： A61B17/1671 ,  A61B17/1615 ,  A61B17/1617 ,  A61B17/162 ,  A61B17/1622 ,  A61B17/1628 ,  A61B17/1633 ,  A61B17/1637 ,  A61B17/1644 ,  A61B17/1697

    摘要： Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. Some of the bone removal devices include expandable members which may be used to control the forced exerted and/or position of the bone removal mechanism, and to protect neurovascular structures and other soft tissue structures from the bone removal mechanism. Other bone removal devices include a trephine with a viewing window and a guide wire lumen used to position the trephine at a target tissue site using an anchored wire. The viewing window may be used to monitor structures or tissues adjacent to the target tissue site.

    摘要翻译： 用于治疗脊柱狭窄的系统和方法包括用于进行椎间孔切开术或其他骨移除手术的内窥镜检查装置和骨移除装置。 骨去除装置中的一些包括可用于控制骨移除机构的强制施加和/或位置的可扩张构件，以及保护神经血管结构和其他软组织结构免受骨移除机构的影响。 其他骨去除装置包括具有观察窗的环钻和用于使用锚定线将环管定位在目标组织部位的导丝腔。 观察窗可用于监测与目标组织部位相邻的结构或组织。

    DILATOR WITH DIRECT VISUALIZATION
    29.
    发明申请
    DILATOR WITH DIRECT VISUALIZATION 有权
    具有直观可视化的DILATOR

    公开(公告)号：US20110098531A1

    公开(公告)日：2011-04-28

    申请号：US12762232

    申请日：2010-04-16

    申请人： John T. To

    发明人： John T. To

    IPC分类号： A61B1/00

    CPC分类号： A61B1/32 ,  A61B1/3135 ,  A61B17/0218 ,  A61B17/1671 ,  A61B17/29 ,  A61B17/295 ,  A61B17/3417 ,  A61B2017/00261 ,  A61B2017/003 ,  A61B2017/00309 ,  A61B2017/00902 ,  A61B2017/0256 ,  A61B2017/2939 ,  A61B2017/3445 ,  A61B2017/3456 ,  A61B2017/3458 ,  A61B2090/3614

    摘要： Dilators with a threaded distal portion and direct visualization capability may be used for penetrating and dilating stiff tissues and bones. The threaded portion of a dilator engages the tissue between the insertion site and the target site, and may be rotated for advancing through the target tissue in a more controlled fashion. The direct visualization capability may be used to visualize the ligament as the threaded distal portion passes through the ligamentum flavum. The devices and methods described may be used in procedures, for example, where ligaments surrounding the epidural space need to be dilated in order to deliver one or more surgical instruments into the epidural space.

    摘要翻译： 具有螺纹远端部分和直接可视化能力的扩张器可用于穿透和扩张僵硬的组织和骨骼。 扩张器的螺纹部分接合插入部位和靶部位之间的组织，并且可以以更受控制的方式旋转以推进穿过靶组织。 当螺纹远端部分穿过黄韧带时，可以使用直接可视化能力来可视化韧带。 所描述的装置和方法可以用于例如在硬膜外腔周围的韧带需要扩张以便将一种或多种外科器械输送到硬膜外腔中的过程中。

    MINIMALLY INVASIVE DISCECTOMY
    30.
    发明申请
    MINIMALLY INVASIVE DISCECTOMY 有权
    最小的入侵歧视

    公开(公告)号：US20110087257A1

    公开(公告)日：2011-04-14

    申请号：US12753788

    申请日：2010-04-02

    申请人： John T. To ,  Dan Zaretzka ,  Myra I. L. Fabro ,  Stewart M. Kume

    发明人： John T. To ,  Dan Zaretzka ,  Myra I. L. Fabro ,  Stewart M. Kume

    IPC分类号： A61B17/32

    CPC分类号： A61B17/1617 ,  A61B17/1671 ,  A61B17/32002 ,  A61B17/320725 ,  A61B17/320758 ,  A61B17/8811 ,  A61B2017/00261 ,  A61B2017/003 ,  A61B2017/00331 ,  A61B2017/00398 ,  A61B2017/00685 ,  A61B2017/00734 ,  A61B2017/00867 ,  A61B2017/320064 ,  A61B2017/320733 ,  A61B2017/320775 ,  A61B2090/064

    摘要： Systems and methods for minimally invasive discectomy procedures are described herein. The systems include a bendable flexible cannula may have a straight configuration suitable for insertion and withdrawal into spinal tissue, and a curved configuration suitable for accessing certain areas of a vertebral disc that may be difficult to reach in the straight configuration. A cannula is straightened by inserting a straight stylet therethrough. The straight stylet may have a deflectable region that facilitates its insertion into the cannula. Removal of a straight stylet from a cannula may allow the cannula to assume its curved configuration. The systems may be used with tissue removal devices, and certain variations of tissue removal devices may comprise a collector for aspiration, as well as a travel limiter to restrict inadvertent motions of the tissue removal devices within a vertebral structure.

    摘要翻译： 本文描述了用于微创椎间盘切除术的系统和方法。 该系统包括可弯曲的柔性套管可以具有适于插入和退回到脊髓组织中的直线构型，以及适于进入可能难以以直线构型到达的椎间盘的某些区域的弯曲构造。 通过插入一个直管心针将套管拉直。 直的探针可以具有有助于其插入插管的可偏转区域。 从插管中移除直管心可以允许套管呈现其弯曲构型。 该系统可以与组织去除装置一起使用，并且组织去除装置的某些变型可以包括用于抽吸的收集器以及限制在椎骨结构内的组织去除装置的无意的运动的行进限制器。