利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.022 秒)

    Electrosurgical apparatus having a curved distal section
    1.
    发明授权
    Electrosurgical apparatus having a curved distal section 有权
    电外科手术器具有弯曲的远端部分

    公开(公告)号：US07070596B1

    公开(公告)日：2006-07-04

    申请号：US09679394

    申请日：2000-10-03

    申请人： Jean Woloszko ,  Theodore C. Ormsby ,  John J. Quackenbush ,  Brian Martini

    发明人： Jean Woloszko ,  Theodore C. Ormsby ,  John J. Quackenbush ,  Brian Martini

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1482 ,  A61B18/1477 ,  A61B90/11 ,  A61B2017/00261 ,  A61B2018/00011 ,  A61B2018/00029 ,  A61B2018/0044 ,  A61B2018/00744 ,  A61B2018/00791 ,  A61B2018/1425 ,  A61B2018/1472 ,  A61B2218/002 ,  A61B2218/007

    摘要： Apparatus and methods for advancing and retracting a medical instrument within an introducer device, wherein the instrument includes a distal tip, a distal linear portion, a first distal curve, a substantially linear inter-curve portion, and a second proximal curve. The length of the distal linear portion and the angle of the first curve determine the position of the distal tip within a lumen of the introducer device, such that the distal tip occupies a substantially central transverse location within the lumen and the distal tip avoids contact with the introducer device. The length of the inter-curve portion and the angle of the second curve determine deflection of the distal tip from a longitudinal axis of the shaft when the second curve is extended distally beyond a distal end of the introducer device. Also, methods and apparatus for treating an intervertebral disc by ablation of disc tissue. A method of the invention includes positioning at least one active electrode within the intervertebral disc, and applying at least a first high frequency voltage between the active electrode(s) and one or more return electrode(s), wherein the volume of the nucleus pulposus is decreased, pressure exerted by the nucleus pulposus on the annulus fibrosus is reduced, and discogenic pain of a patient is alleviated. In other embodiments, a curved or steerable probe is guided to a specific target site within a disc to be treated, and the disc tissue at the target site is ablated by application of at least a first high frequency voltage between the active electrode(s) and one or more return electrode(s). A method of making an electrosurgical probe is also disclosed.

    摘要翻译： 用于在导引器装置内推进和缩回医疗器械的装置和方法，其中所述器械包括远端尖端，远端线性部分，第一远端曲线，基本上线性的曲线间部分和第二近端曲线。 远端线性部分的长度和第一曲线的角度确定远侧末端在导引器装置的内腔内的位置，使得远侧末端占据内腔内的基本上中心的横向位置，并且远侧尖端避免与 导引器装置。 当第二曲线向远侧延伸超过导引器装置的远端时，曲线间部分的长度和第二曲线的角度确定远侧尖端从轴的纵向轴线的偏转。 另外，通过椎间盘组织消融来治疗椎间盘的方法和装置。 本发明的方法包括将至少一个有效电极定位在椎间盘内，以及在活性电极和一个或多个返回电极之间施加至少第一高频电压，其中髓核的体积 减轻了髓核对纤维环的压力，缓解了患者的椎间盘疼痛。 在其他实施例中，弯曲或可操纵的探针被引导到待治疗的椎间盘内的特定靶部位，并且通过在有源电极之间施加至少第一高频电压来消除目标部位的椎间盘组织， 和一个或多个返回电极。 还公开了一种制造电外科探针的方法。

    Soft-tipped catheters
    2.
    发明授权
    Soft-tipped catheters 失效
    软管导管

    公开(公告)号：US5125913A

    公开(公告)日：1992-06-30

    申请号：US523053

    申请日：1990-05-11

    申请人： John J. Quackenbush

    发明人： John J. Quackenbush

    IPC分类号： A61M25/00

    CPC分类号： A61M25/001 ,  A61M2025/0081 ,  A61M25/0045 ,  A61M25/0054

    摘要： A double-layer medical catheter with an integral soft tip is made by the coextrusion of a relatively rigid inner layer and a relatively soft outer layer, where the extrusion equipment is configured and so controlled to interrupt the supply of the material for the inner layer to form a periodic void in the inner wall. The act of interrupting the supply causes a ramp down in the inner wall thickness at the leading edge of each void and the ramp up of the thickness at the trailing edge. The void is cut to produce two ideal integral soft-tipped catheters.

    摘要翻译： 具有整体软尖端的双层医用导管通过相对刚性的内层和相对柔软的外层的共挤出制成，其中挤压设备被构造和控制以中断供给内层的材料 在内壁形成周期性空隙。 中断供应的行为导致每个空隙的前缘处的内壁厚度下降，并且在后缘的厚度上升。 切割空隙以产生两个理想的整体软尖导管。

    Membrane splittable tubing
    3.
    发明授权
    Membrane splittable tubing 失效
    膜可分流管

    公开(公告)号：US5104388A

    公开(公告)日：1992-04-14

    申请号：US521131

    申请日：1990-05-08

    申请人： John J. Quackenbush

    发明人： John J. Quackenbush

    IPC分类号： A61M25/06

    CPC分类号： A61M25/0668

    摘要： A splittable tube, useful in medical applications as a cannula for insertion into the body, comprises an inner and an outer layer. The inner layer defines a central lumen for accepting catheters and probes. The inner layer also includes a longitudinal slot through its wall for defining a stress line in the outer layer. The outer layer is very thin, membrane-like, and tears along the longitudinal stress line when the cannula is pulled to the side of a catheter occupying the central lumen. The tube may be made of electrically insulating material and used, for example, as strippable insulation as telephone or house wire, and strippable without the use of tools.

    摘要翻译： 可用于医疗用途的可分离管作为用于插入体内的插管，包括内层和外层。 内层限定用于接受导管和探针的中心腔。 内层还包括通过其壁的纵向狭槽，用于在外层中限定应力线。 当套管被拉到占据中央管腔的导管侧时，外层非常薄，膜状，并沿着纵向应力线撕裂。 管可以由电绝缘材料制成，并且例如用作电话或家用电线的可剥离绝缘体，并且可以在不使用工具的情况下剥离。