Minimally invasive discectomy
    1.
    发明授权
    Minimally invasive discectomy 有权
    微创椎间盘切除术

    公开(公告)号:US09168047B2

    公开(公告)日:2015-10-27

    申请号:US12753788

    申请日:2010-04-02

    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 include 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。 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。

    MINIMALLY INVASIVE DISCECTOMY
    2.
    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

    IPC分类号: A61B17/32

    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。

    Delivery catheter system for heart chamber
    8.
    发明授权
    Delivery catheter system for heart chamber 失效
    心室输送导管系统

    公开(公告)号:US06723082B1

    公开(公告)日:2004-04-20

    申请号:US09405937

    申请日:1999-09-27

    IPC分类号: A61M2501

    摘要: Apparatus and methods for delivering an angiogenic agent to a site within the heart. Either using a percutaneous, intraoperative or minimally invasive approach, an elongated member containing an angiogenic agent is guided to a heart wall and the agent is dispensed into heart tissue. Additional fluids or substances can be dispensed in combination with the angiogenic agent to provide visualization and site mapping. In certain embodiments, the angiogenic agent is delivered adjunctively with the administration of energy, such as laser energy or RF energy which disturbs the heart tissue sufficiently to enhance the effects of the angiogenic agent. A delivery catheter system for delivering a substance delivery member into a patient's left ventricle which includes a first delivery catheter with a shaped distal extremity configured to be aligned with or parallel to a longitudinal axis or long dimension of the patient's left ventricle and a second delivery catheter slidably and rotatably disposed within an inner lumen of the first delivery catheter which has a shaped distal shaft section and an inner lumen configured to slidably receive a substance delivery member such as an elongated cannula slidably disposed within a polymer sheath.

    摘要翻译: 用于将血管生成剂递送到心脏内的部位的装置和方法。 使用经皮,术中或微创方法,将含有血管生成剂的细长构件引导至心脏壁,并将试剂分配到心脏组织中。 额外的流体或物质可以与血管生成剂组合分配,以提供可视化和位点作图。 在某些实施方案中,血管生成剂通过施加能量(例如激光能量或RF能量)辅助递送,其能够充分地干扰心脏组织以增强血管发生剂的作用。 一种输送导管系统,用于将物质递送部件输送到患者的左心室中,该输送导管系统包括具有成形远端的第一输送导管,该第一输送导管被构造为与患者的左心室的纵向轴线或长度尺寸对准或平行, 可滑动地和可旋转地设置在第一输送导管的内腔内,该第一输送导管具有成形的远端轴部分和内腔,其构造成可滑动地容纳诸如可滑动地设置在聚合物护套内的细长插管的物质输送构件。

    System and method of providing a blood-free interface for intravascular
light delivery
    10.
    发明授权
    System and method of providing a blood-free interface for intravascular light delivery 失效
    为血管内光输送提供无血界面的系统和方法

    公开(公告)号:US5876426A

    公开(公告)日:1999-03-02

    申请号:US662585

    申请日:1996-06-13

    摘要: A system and method of providing a blood-free interface for intravascular light delivery is disclosed. The method includes the steps of inserting a balloon catheter into the vasculature of a patient wherein the balloon catheter includes an infusion layer disposed about the balloon; inserting a light delivery catheter into the working lumen of the balloon catheter; inflating the balloon to displace blood inside the vasculature; infusing a liquid to displace blood between the inflated balloon and the inside wall of the vasculature so as to provide a relatively blood-free interface; and delivering light through the blood-free interface to the vasculature from the light delivery catheter. Fluid may be infused into the working lumen of the balloon catheter and around the light delivery catheter in order to displace any blood in the lumen. The system includes a light delivery catheter and a balloon catheter where the balloon catheter includes a long shaft having an inflation lumen, an infusion lumen and a working lumen. A balloon is connected to the distal end of the shaft and an infusion layer is disposed about the balloon. The catheter may include one or more radial restraints disposed about the balloon to center the working lumen and to limit the expandable diameter of the balloon. The radial restraint imparts flexibility and allows the balloon and the working lumen to be centered in vasculature that is curved (i.e., non-linear).

    摘要翻译: 公开了提供用于血管内光输送的无血界面的系统和方法。 该方法包括以下步骤:将气囊导管插入患者的脉管系统中,其中气囊导管包括围绕气囊设置的输注层; 将光输送导管插入到气囊导管的工作腔中; 充气气球以置换血管内的血液; 输注液体以置换充气气囊和脉管系统内壁之间的血液,以提供相对无血液的界面; 并将光通过无血清界面从光输送导管输送到脉管系统。 可以将流体输入气囊导管的工作腔和光输送导管周围,以便置换内腔中的任何血液。 该系统包括光输送导管和球囊导管,其中气囊导管包括具有充气腔,输液腔和工作腔的长轴。 气球连接到轴的远端,并且输注层围绕气球设置。 导管可以包括围绕气囊设置的一个或多个径向限制器,以使工作腔体居中并限制气囊的可扩张直径。 径向约束提供了灵活性,并允许气球和工作腔在弯曲(即非线性)的脉管系统中居中。