Methods and devices for radiofrequency electrosurgery
    31.
    发明授权
    Methods and devices for radiofrequency electrosurgery 失效
    射频电外科手术方法及装置

    公开(公告)号:US07198626B2

    公开(公告)日:2007-04-03

    申请号:US10349659

    申请日:2003-01-23

    IPC分类号: A61B18/18 A61B17/24

    摘要: An electrically activated surgical device includes a probe body, an active element and a structure for selectively electrically insulating and/or physically isolating the active element from the patient's tissue when the device is in use. The probe body defines an outer surface, a proximal end, a distal end and a window defined within the outer surface near or at the distal end. The active element is electrically connected to a power source and is configured to selectively assume a non-deployed configuration and a variable deployed configuration in which the active element at least partially emerges from the window out of the probe body. The insulating structure selectively insulates the active element from the patient's tissue when the device is inserted therein. In operation, a physician inserts the probe into the tissue, insulates the active element from the tissue (either before, during or after insertion of the probe), energizes the insulated active element using for example, radiofrequency (RF) power from the power source, and only then exposes the energized active element to the tissue. By insulating the active element during the energizing thereof, little or no current applied to the active element is dissipated in the patient's tissue, thus decreasing the time required to energize the active element and enabling lower and safer power levels to be applied to the active element during the energizing thereof.

    摘要翻译: 电激活的手术装置包括探针体,活性元件和用于在使用该装置时有选择地电绝缘和/或物理隔离活体元件与患者组织的结构。 探针主体限定外表面,近端,远端和限定在远端附近或远端的外表面内的窗口。 有源元件电连接到电源,并且被配置为选择性地采取非展开配置和可变展开配置,其中有源元件至少部分地从窗口离开探针主体。 当该装置插入其中时,绝缘结构选择性地将活动元件与病人的组织隔离。 在操作中,医生将探针插入组织中,使有源元件从组织(在探针之前,期间或之后)绝缘,使用例如来自电源的射频(RF)功率来激励绝缘的有源元件 ,然后仅将通电的活性元件暴露于组织。 通过在有源元件通电期间绝缘有源元件,施加到有源元件的电流很小或不会在患者组织中消散,从而减少激活有源元件所需的时间,并且能够将更低和更安全的功率电平施加到有源元件 在其通电期间。

    Device and method for radiation therapy
    32.
    发明授权
    Device and method for radiation therapy 有权
    辐射治疗的装置和方法

    公开(公告)号:US06302839B1

    公开(公告)日:2001-10-16

    申请号:US09370387

    申请日:1999-08-06

    IPC分类号: A61N500

    摘要: There is provided a device and a method for irradiating vascular tissues. The device generally includes a transfer device having a first chamber and a second chamber and a piston slidably disposed between the chambers. A ballon catheter is provided for positioning witin the vascular system and is connected to the transfer device such that an inflation lumen of the balloon catheter is in fluid communication with the second chamber. A proximal end of the balloon catheter is affixed to a mounting block which is configured to receive the transfer device. An inflation device is provided to force fluid into the first chamber such that the piston is driven to force a radioactive fluid contained in the second chamber into the balloon.

    摘要翻译: 提供了用于照射血管组织的装置和方法。 该装置通常包括具有第一室和第二室的转移装置和可滑动地设置在室之间的活塞。 提供气球导管用于在血管系统中定位并连接到转移装置,使得球囊导管的充气腔与第二腔流体连通。 球囊导管的近端固定到安装块,该安装块被构造成接收传送装置。 提供充气装置以迫使流体进入第一腔室,使得活塞被驱动以迫使包含在第二腔室中的放射性流体进入球囊。

    Self-deploying isolation bag
    33.
    发明授权
    Self-deploying isolation bag 失效
    自行部署隔离袋

    公开(公告)号:US5524633A

    公开(公告)日:1996-06-11

    申请号:US130503

    申请日:1993-10-01

    摘要: An expandable and collapsible isolation bag having at least two layers which are bonded together at a plurality of connection sites distributed over a surface of the bag and a system for supplying a fluid between the two layers and opening the isolation bag. The two layers preferably include polyurethane film and the bag may further include a lubricous outer surface, such as a nylon mesh layer, bonded to the polyurethane film. A neck channel may be formed around the openable end of the isolation bag for supporting a drawstring which is movable through the neck channel to close the open end of the bag. The bag can be made by bonding the nylon mesh layer to two layers of polyurethane film using a radio frequency welder to form a plurality of weld sites distributed across the surface of the laminate. The drawstring is then introduced into the neck channel. The finished laminate with the drawstring is welded to form a bag assembly having an opening at one end. A neck portion of the bag assembly is then connected to a bag coupling on the end of the hollow rod. A compressive band of heat-shrinkable material may be used to secure the bag assembly on the rod. A handle assembly is bonded to the rod and the drawstring is threaded through a slidable seal between the rod and an injection tube. The end of the drawstring is connected to a movable portion of the handle or to a pulling ring.

    摘要翻译: 一种可膨胀和可折叠的隔离袋,其具有至少两层,其在分布在袋表面上的多个连接部位结合在一起,以及用于在两层之间供应流体并打开隔离袋的系统。 两层优选包括聚氨酯膜,并且该袋还可以包含粘合到聚氨酯膜上的诸如尼龙网层的润滑外表面。 可以在隔离袋的可打开端部周围形成颈部通道,用于支撑可通过颈部通道移动的束带,以封闭袋的开口端。 该袋可以通过使用射频焊机将尼龙网层粘合到两层聚氨酯膜上来形成多个穿过层压体表面分布的焊接部位来制造。 然后将束带引入颈部通道。 将具有束带的成品层压板焊接以形成在一端具有开口的袋组件。 然后将袋组件的颈部连接到中空杆的端部上的袋连接件。 可以使用热收缩材料的压缩带将袋组件固定在杆上。 手柄组件结合到杆上,并且束带穿过杆和注射管之间的可滑动密封。 束带的端部连接到手柄的可移动部分或拉环。

    METHODS, DEVICES AND SYSTEMS FOR INCREASING THE EFFECTIVENESS OF ULTRASOUND AND OTHER TISSUE TREATMENT MODALITIES
    34.
    发明申请
    METHODS, DEVICES AND SYSTEMS FOR INCREASING THE EFFECTIVENESS OF ULTRASOUND AND OTHER TISSUE TREATMENT MODALITIES 审中-公开
    用于增加超声和其他组织治疗模式的有效性的方法,装置和系统

    公开(公告)号:US20140378873A1

    公开(公告)日:2014-12-25

    申请号:US14312967

    申请日:2014-06-24

    IPC分类号: A61N7/00 A61M37/00

    摘要: Embodiments isolate exposed surfaces to increase the effectiveness of different treatment modalities. Embodiments isolate hollow spaces within the body to increase the effectiveness of ultrasound energy and/or other treatments. Such hollow spaces within the body may include nasal surfaces, and recessed or sequestered surfaces, e.g. sinus cavity surfaces or other anatomical structures, such as upper and lower gastrointestinal tract, airways, uterine and vaginal cavities and the anorectal canal, for example. Isolating the area to be treated reduces the volume of the enclosed and delimited space and reduces the tissue surface against which the ultrasound and/or biologically active substances act. For example, isolating a hollow passageway within the body enhances the effectiveness of ultrasound within the isolated space, and constrains the biologically active fluid and/or the gel or fluid configured to conducts the ultrasonic energy from the emitter thereof (e.g., an ultrasound waveguide) to the surfaces to be treated.

    摘要翻译: 实施例分离暴露的表面以增加不同治疗方式的有效性。 实施例隔离体内的中空空间以增加超声能量和/或其他治疗的有效性。 体内的这样的中空空间可以包括鼻表面,凹陷或隔离表面,例如, 窦腔表面或其他解剖结构,例如上,下胃肠道,气道,子宫和阴道腔以及肛肠直肠。 隔离待治疗的区域减少封闭和限定空间的体积,并减少超声波和/或生物活性物质发生作用的组织表面。 例如,隔离体内的中空通道增强隔离空间内的超声波的有效性,并限制生物活性流体和/或配置成从其发射器(例如,超声波导管)传导超声能量的凝胶或流体, 到待处理的表面。

    Device and method for radiation therapy
    35.
    发明授权
    Device and method for radiation therapy 失效
    辐射治疗的装置和方法

    公开(公告)号:US5961439A

    公开(公告)日:1999-10-05

    申请号:US73932

    申请日:1998-05-06

    摘要: There is provided a device and a method for irradiating vascular tissues. The device generally includes a transfer device having a first chamber and a second chamber and a piston slidably disposed between the chambers. A balloon catheter is provided for positioning within the vascular system and is connected to the transfer device such that an inflation lumen of the balloon catheter is in fluid communication with the second chamber. A proximal end of the balloon catheter is affixed to a mounting block which is configured to receive the transfer device. An inflation device is provided to force fluid into the first chamber such that the piston is driven to force a radioactive fluid contained in the second chamber into the balloon.

    摘要翻译: 提供了用于照射血管组织的装置和方法。 该装置通常包括具有第一室和第二室的转移装置和可滑动地设置在室之间的活塞。 气囊导管被设置用于定位在血管系统内并且连接到转移装置,使得气囊导管的充气腔与第二腔流体连通。 球囊导管的近端固定到安装块,该安装块被构造成接收传送装置。 提供充气装置以迫使流体进入第一腔室,使得活塞被驱动以迫使包含在第二腔室中的放射性流体进入球囊。