利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

156 条记录 (耗时 0.035 秒)

    Fluid-assisted electrosurgical device
    1.
    发明授权
    Fluid-assisted electrosurgical device 失效
    流体辅助电外科装置

    公开(公告)号：US06764487B2

    公开(公告)日：2004-07-20

    申请号：US10411921

    申请日：2003-04-11

    申请人： Peter M. J. Mulier ,  Michael F. Hoey

    发明人： Peter M. J. Mulier ,  Michael F. Hoey

    IPC分类号： A61B1814

    CPC分类号： A61B18/1402 ,  A61B18/1815 ,  A61B2018/00196 ,  A61B2018/00291 ,  A61B2018/1253 ,  A61B2018/1417 ,  A61B2018/1472 ,  A61B2018/1475 ,  A61B2018/1861 ,  A61B2218/002 ,  A61B2218/007 ,  A61M3/0279

    摘要： An electrocautery device is disclosed. In accordance with one aspect of the invention, the electrocautery electrode/tip is provided with a hollow, conductive tube terminating at its distal end in a ball point type tip. Fluid, preferably conductive fluid, is applied to the proximal end of the hollow electrode/tip, and expelled from the distal end thereof during electrocautery. The ball point distal tip allows the distal tip to be directly applied to the tissue and “rolled” or slid along the tissue. This allows the distal tip to be moved across the tissue without dragging or snagging on the tissue. In addition, the conductive fluid expelled from the distal tip further lubricates the distal tip as it moves across the tissue. If conductive fluid is used, the conductive fluid emanating from the electrode/tip conducts the RF electrocautery energy away from the distal tip so that it is primarily the fluid, rather than the distal tip that actually accomplishes the cauterizing of tissue. That is, the fluid serves as a “virtual” electrocautery electrode. Since it is the fluid, rather than the distal tip that cauterizes, coagulates and ablates, no burns or perforations are made to the tissue, reducing the amount of debris at the site. Also, the flow of fluid through the electrode/tip tends to keep the distal tip clean and cool.

    摘要翻译： 公开了电灼装置。 根据本发明的一个方面，电烙电极/尖端设置有中空的导电管，其末端终止于球形尖端。 流体，优选导电流体被​​施加到中空电极/尖端的近端，并且在电烙术期间从其远端排出。 球头远侧末端允许远侧末端直接施加到组织并且“滚动”或沿着组织滑动。 这允许远侧末端移动穿过组织而不会在组织上拖动或阻塞。 此外，从远侧末梢排出的导电流体在远端处移动穿过组织时进一步润滑远端。 如果使用导电流体，则从电极/尖端发出的导电流体将RF电灼能远离远端尖端传导，使得其主要是流体，而不是实际完成组织烧灼的远端。 也就是说，流体用作“虚拟”电烙电极。 由于它是流体，而不是灼烧，凝结和消融的远端，不会对组织造成烧伤或穿孔，减少了现场的碎片数量。 此外，通过电极/尖端的流体流趋向于保持远端尖端清洁和冷却。

    Method and apparatus for creating a bi-polar virtual electrode used for the ablation of tissue
    6.
    发明授权
    Method and apparatus for creating a bi-polar virtual electrode used for the ablation of tissue 有权
    用于创建用于组织消融的双极虚拟电极的方法和装置

    公开(公告)号：US06706039B2

    公开(公告)日：2004-03-16

    申请号：US09865591

    申请日：2001-05-25

    申请人： Peter M. J. Mulier ,  Michael F. Hoey

    发明人： Peter M. J. Mulier ,  Michael F. Hoey

    IPC分类号： A61B1814

    CPC分类号： A61B18/14 ,  A61B18/1482 ,  A61B2018/00005 ,  A61B2018/00053 ,  A61B2018/00291 ,  A61B2018/00642 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/126 ,  A61B2018/1472 ,  A61B2218/002 ,  A61B2218/007

    摘要： A method and apparatus for creating a virtual electrode to ablate bodily tissue. The apparatus includes an outer tube, a first electrode, an inner tube and a second electrode. The outer tube is fluidly connected to a source of conductive fluid and defines a proximal end and a distal end. The distal end includes an opening for delivering conductive fluid from the outer tube. The first electrode is disposed at the distal end of the outer tube for applying a current to conductive fluid delivered from the outer tube. The inner tube is coaxially received within the outer tube and is connected to a source of conductive fluid. The inner tube defines a proximal end and a distal end, with the distal end forming an opening for delivering conductive fluid from the inner tube. Finally, the second electrode is disposed at the distal end of the inner tube for applying a current to conductive fluid delivered from the inner tube. With this configuration, upon final assembly, the distal end of the outer tube is axially spaced from the distal end of the inner tube such that the first electrode is spaced from the second electrode. As a result, a bi-polar virtual electrode can be established.

    摘要翻译： 一种用于产生虚拟电极以消除身体组织的方法和装置。 该装置包括外管，第一电极，内管和第二电极。 外管流体地连接到导电流体源并且限定近端和远端。 远端包括用于从外管输送导电流体的开口。 第一电极设置在外管的远端，用于向从外管输送的导电流体施加电流。 内管同轴地容纳在外管内并连接到导电流体源。 内管限定近端和远端，远端形成用于从内管输送导电流体的开口。 最后，第二电极设置在内管的远端，用于向从内管传送的导电流体施加电流。 利用该构造，在最终组装时，外管的远端与内管的远端轴向间隔开，使得第一电极与第二电极间隔开。 结果，可以建立双极虚拟电极。

    Electrosurgical instrument having a chamber to volatize a liquid
    7.
    发明授权
    Electrosurgical instrument having a chamber to volatize a liquid 有权
    电外科器械具有使液体挥发的室

    公开(公告)号：US06699244B2

    公开(公告)日：2004-03-02

    申请号：US10124954

    申请日：2002-04-17

    申请人： J. Remberto Carranza ,  Hugh R. Sharkey ,  John E. Ashley ,  Gary S. Fanton

    发明人： J. Remberto Carranza ,  Hugh R. Sharkey ,  John E. Ashley ,  Gary S. Fanton

    IPC分类号： A61B1814

    CPC分类号： A61B18/148 ,  A61B18/1482 ,  A61B18/1492 ,  A61B2017/320008 ,  A61B2018/00434 ,  A61B2018/00625 ,  A61B2018/00654 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/1472 ,  A61B2218/002 ,  A61N1/06 ,  A61N1/40

    摘要： An electrosurgical instrument is provided which includes a holding formation, a probe shaft, an electric conductor, and a probe tip. The probe shaft is secured to the holding formation and has an elongated section extending therefrom. The electric conductor extends along the elongated section. The probe tip is located on a distal end of the probe shaft opposing the holding formation. The probe tip defines a volatization chamber with a mouth out of the probe tip. The probe tip includes an electrode, to which RF current is provided through the electric conductor. The electrode heats an area adjacent to the probe tip. The electrode also heats a liquid in the first volatization chamber to evaporate the liquid into a vapor pocket that ejects from the first volatization chamber through the mouth out of the probe tip. A pump effect is created so that the liquid maintains the probe tip at a more stable temperature.

    摘要翻译： 提供了一种电外科器械，其包括保持结构，探针轴，电导体和探针尖端。 探头轴固定在保持结构上，并具有从其延伸的细长部分。 电导体沿着细长部分延伸。 探针尖端位于与保持结构相对的探针轴的远端上。 探针尖端限定了具有探针尖端的口的挥发室。 探针尖端包括电极，通过电导体提供RF电流。 电极加热与探针尖端相邻的区域。 电极还加热第一挥发室中的液体以将液体蒸发成从第一挥发室通过探针尖端喷出的蒸气袋。 产生泵效应，使得液体将探针尖端保持在更稳定的温度。

    Electrosurgical instrument with a longitudinal element for conducting RF energy and moving a cutting element
    8.
    发明授权
    Electrosurgical instrument with a longitudinal element for conducting RF energy and moving a cutting element 失效
    电外科仪器具有用于传导RF能量并移动切割元件的纵向元件

    公开(公告)号：US06695840B2

    公开(公告)日：2004-02-24

    申请号：US10218235

    申请日：2002-08-14

    申请人： Dale R. Schulze

    发明人： Dale R. Schulze

    IPC分类号： A61B1814

    CPC分类号： A61B18/1445 ,  A61B90/70 ,  A61B2018/1412 ,  A61B2018/1455

    摘要： A bipolar electrosurgical instrument useful in harvesting blood vessels such as veins and arteries. The instrument has a pair of jaws and a central cutting element displaceable distally and proximally to dissect tissue contained between the jaws. The central cutting element has an electrode surface.

    摘要翻译： 用于收集血管如静脉和动脉的双极电外科器械。 仪器具有一对钳口和中心切割元件，可以向远侧和近端移位，以切除夹在夹爪之间的组织。 中央切割元件具有电极表面。

    Swirling system for ionizable gas coagulator
    9.
    发明授权
    Swirling system for ionizable gas coagulator 有权
    电离气体凝结器旋流系统

    公开(公告)号：US06666865B2

    公开(公告)日：2003-12-23

    申请号：US10271199

    申请日：2002-10-15

    申请人： Robert C. Platt

    发明人： Robert C. Platt

    IPC分类号： A61B1814

    CPC分类号： A61B18/042 ,  A61B2018/00482 ,  A61B2018/00589

    摘要： An electrosurgical apparatus for coagulating tissue includes an elongated flexible tube having a proximal end, a distal end, and at least one aperture located therein. The proximal end of the tube receives a supply of pressurized ionizable gas and is disposed within a working channel of the endoscope. At least one electrode ionizes the gas prior to the gas exiting the aperture of the tube and an agitator causes the gas to exit the tube with predetermined flow characteristics. In one embodiment, the agitator includes a helically-shaped baffle disposed within the tube. In another embodiments, the agitator can include a rotatable baffle having apertures disposed therethrough for causing the gas to exit the tube in a swirl-like manner. Alternatively, a pair of elongated ribbons can be disposed within the tube which, under flow conditions, will cause turbulence within the gas flow.

    摘要翻译： 用于凝固组织的电外科设备包括细长的柔性管，其具有近端，远端和位于其中的至少一个孔。 管的近端接收加压的可电离气体供应并且设置在内窥镜的工作通道内。 在离开管孔的气体之前，至少有一个电极将气体电离，并且搅拌器使得气体以预定的流动特性离开管。 在一个实施例中，搅拌器包括设置在管内的螺旋状挡板。 在另一个实施例中，搅拌器可以包括可旋转的挡板，其具有穿过其中的孔，以使气体以漩涡状的方式离开管。 或者，一对细长的带可以设置在管内，其在流动条件下将在气流中引起湍流。

    Apparatus and methods for reducing lung volume
    10.
    发明授权
    Apparatus and methods for reducing lung volume 失效
    减轻肺容量的装置和方法

    公开(公告)号：US06645205B2

    公开(公告)日：2003-11-11

    申请号：US09931681

    申请日：2001-08-15

    申请人： Richard S. Ginn

    发明人： Richard S. Ginn

    IPC分类号： A61B1814

    CPC分类号： A61B17/12104 ,  A61B17/04 ,  A61B17/0644 ,  A61B17/068 ,  A61B17/12022 ,  A61B17/12172 ,  A61B17/1227 ,  A61B17/1285 ,  A61B18/1492 ,  A61B2017/0641 ,  A61B2017/1205 ,  A61B2018/00541

    摘要： Apparatus and methods are provided for reducing the volume of a lung using a clip including a plurality of tines. The clip is advanced along an interior of a bronchial passage to a predetermined location with the tines in a contracted condition. The tines are expanded outwardly to engage surrounding tissue, and then collapsed towards the contracted condition, thereby drawing the surrounding tissue inwardly to substantially close the bronchial passage from air flow therethrough. Optionally, electrical energy may be applied to the surrounding tissue after collapsing the tines to the contracted condition, thereby fusing the surrounding tissue together. The clip is then released within or removed from the passage.

    摘要翻译： 提供了使用包括多个尖齿的夹子减小肺体积的装置和方法。 夹子沿着支气管通道的内部前进到具有收缩状态的尖齿的预定位置。 齿向外扩张以接合周围组织，然后朝向收缩状态折叠，从而将周围组织向内拉，以从气流通过其基本上关闭支气管通道。 任选地，在将尖齿折叠到收缩状态之后，可以将电能施加到周围组织，从而将周围组织融合在一起。 然后将夹子释放在通道内或从通道中取出。