利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.018 秒)

    RF generator system for surgical vessel sealing
    1.
    发明授权
    RF generator system for surgical vessel sealing 有权
    射频发生器系统用于手术容器密封

    公开(公告)号：US09039694B2

    公开(公告)日：2015-05-26

    申请号：US13277979

    申请日：2011-10-20

    申请人： David Ross ,  Joel Helfer

    发明人： David Ross ,  Joel Helfer

    IPC分类号： A61B18/12 ,  H02M7/48 ,  A61B18/14 ,  A61B18/00

    CPC分类号： A61B18/1233 ,  A61B18/1442 ,  A61B2018/0063 ,  A61B2018/00702 ,  A61B2018/00779 ,  A61B2018/00827 ,  A61B2018/00875 ,  A61B2018/00892 ,  H02M7/48 ,  H02M7/539

    摘要： Systems, methods, and apparatus for providing power to an electrosurgical instrument. In particular, a power supply is disclosed in which non-sinusoidal (e.g., pulsed) constant frequency voltage having a variable amplitude is passed to an LC circuit to produce a quasi-sinusoidal current in the LC circuit. The constant driving frequency can be one half the resonant frequency of the LC circuit allowing the LC circuit to operate as an impedance, and thus limit current spikes and arcing. The frequency and phasing of the driving voltage also enables the LC circuit to discharge energy back into a power provider of the power supply so that energy does not build up in the LC circuit. These features result in less severe current spikes and arcing, as well as reduced cutoff times.

    摘要翻译： 用于向电外科器械提供电力的系统，方法和装置。 特别地，公开了一种电源，其中具有可变幅度的非正弦（例如，脉冲）恒定频率电压被传递到LC电路以在LC电路中产生准正弦电流。 恒定驱动频率可以是允许LC电路作为阻抗工作的LC电路的谐振频率的一半，从而限制电流尖峰和电弧。 驱动电压的频率和定相也使得LC电路能够将能量放回到电源的供电器中，使得在LC电路中不会积聚能量。 这些特征导致电流尖峰和电弧不太严重，并且截止时间减少。

    Low Power Tissue Sealing Device and Method
    3.
    发明申请
    Low Power Tissue Sealing Device and Method 有权
    低功率组织密封装置及方法

    公开(公告)号：US20110319882A1

    公开(公告)日：2011-12-29

    申请号：US13153513

    申请日：2011-06-06

    申请人： Jenifer Kennedy ,  Dale Schmaltz ,  David Schechter ,  Joel Helfer ,  David Ross

    发明人： Jenifer Kennedy ,  Dale Schmaltz ,  David Schechter ,  Joel Helfer ,  David Ross

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1233 ,  A61B18/1206 ,  A61B18/1445 ,  A61B18/1482 ,  A61B2017/00141 ,  A61B2018/00607 ,  A61B2018/00619 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00708 ,  A61B2018/0072 ,  A61B2018/00767 ,  A61B2018/00875

    摘要： A surgical system and associated method for sealing the passageway of a fluid-carrying vessel with a diameter up to 5 millimeters comprises an electrosurgical generator capable of delivering electrosurgical power, a surgical instrument electrically connected to the electrosurgical generator and adapted to transfer electrosurgical power from the electrosurgical generator to a pair of end effectors disposed at a distal end of the surgical instrument. The system also includes a power control circuit for controlling the delivery of radio frequency energy to the vessel through the end effectors, wherein the delivery of the radio frequency energy to the vessel comprises, raising the output current to a range below 1.75 Amperes RMS and the output voltage to a range below 135 Volts RMS. Radio frequency energy is applied to the vessel for a period of time while the power is held approximately constant. The flow of radio frequency energy is terminated when the impedance of the vessel being sealed reaches a predetermined level.

    摘要翻译： 用于密封直径达5毫米的流体输送容器的通道的手术系统和相关联的方法包括能够递送电外科电力的电外科发生器，电连接到电外科发生器的外科手术器械，并且适于将电外科手术功率从 电外科发生器设置在外科器械的远端处的一对末端执行器。 该系统还包括一个功率控制电路，用于通过端部执行器控制向容器传送射频能量，其中将射频能量递送到容器包括将输出电流提升到低于1.75安培RMS的范围，并且 输出电压范围低于135伏RMS。 无线电频率能量被持续一段时间，而电力保持大致恒定。 当被密封的容器的阻抗达到预定水平时，射频能量的流动被终止。

    Apparatus and method for multi-modal imaging
    5.
    发明申请
    Apparatus and method for multi-modal imaging 有权
    多模态成像装置及方法

    公开(公告)号：US20060064000A1

    公开(公告)日：2006-03-23

    申请号：US11221530

    申请日：2005-09-08

    申请人： Douglas Vizard ,  Joel Helfer ,  George Brocksieper ,  William Mclaughlin

    发明人： Douglas Vizard ,  Joel Helfer ,  George Brocksieper ,  William Mclaughlin

    IPC分类号： A61B5/05

    CPC分类号： A61B6/5235 ,  A61B5/0059 ,  A61B6/00 ,  A61B6/4417 ,  A61B6/508

    摘要： An imaging system for imaging an object. The imaging system includes a support member adapted to receive the object in an immobilized state. The system also includes first means for imaging the immobilized object in a first imaging mode to capture a first image, and second means for imaging the immobilized object in a second imaging mode, different from the first imaging mode, to capture a second image. The first imaging mode is selected from the group: x-ray mode and radio isotopic mode. The second imaging mode is selected from the group: bright-field mode and dark-field mode. A removable phosphor screen is employed when the first image is captured and not employed when the second image is captured. The phosphor screen is adapted to transduce ionizing radiation to visible light. The phosphor screen is adapted to be removable without moving the immobilized object. The system can further include means for generating a third image comprised of the first and second image.

    摘要翻译： 用于成像对象的成像系统。 成像系统包括适于在固定状态下接收物体的支撑构件。 该系统还包括用于在第一成像模式下成像固定的物体以捕获第一图像的第一装置，以及用于在与第一成像模式不同的第二成像模式下成像固定的物体以捕获第二图像的第二装置。 第一种成像模式选自x射线模式和放射同位素模式。 第二种成像模式选自明场模式和暗场模式。 当捕获第一图像并且当捕获第二图像时不使用可移除荧光屏。 荧光屏适于将电离辐射转换成可见光。 荧光屏适于可拆卸而不移动固定的物体。 该系统还可以包括用于生成由第一和第二图像组成的第三图像的装置。

    Electrophoresis frame for gel slabs with different thickness holder plates
    6.
    发明授权
    Electrophoresis frame for gel slabs with different thickness holder plates 失效
    带不同厚度固定板的凝胶板电泳架

    公开(公告)号：US06969455B1

    公开(公告)日：2005-11-29

    申请号：US10348993

    申请日：2003-01-22

    申请人： Joel Helfer ,  James McGuffick

    发明人： Joel Helfer ,  James McGuffick

    IPC分类号： G01N27/447 ,  G01N27/453

    CPC分类号： G01N27/44704

    摘要： A frame used in clamping gel slab holders having different thicknesses used in electrophoresis. The frame has a cam that, when rotated, presses against a plate of a gel slab holder. The cam has a high lobe and a low lobe for selectively clamping gel slab holders having different thicknesses. A thin gel slab holder is securely held in position by rotating the cam in a direction such that the high lobe contacts the thin gel slab holder. A thicker gel slab holder is clamped in position by rotating the cam such that the low lobe contacts the thicker gel slab holder. Gel slab holders having different thicknesses are accommodated.

    摘要翻译： 用于夹紧电泳中使用不同厚度的凝胶板支架的框架。 框架具有凸轮，当旋转时，该凸轮压在凝胶板支架的板上。 凸轮具有高凸角和低凸角，用于选择性夹紧具有不同厚度的凝胶板支架。 通过使凸轮沿着使高凸角接触薄凝胶板保持器的方向旋转凸轮，薄的凝胶板支架被牢固地保持就位。 通过旋转凸轮将较厚的凝胶板支架夹紧就位，使得低凸角接触较厚的凝胶板支架。 容纳具有不同厚度的凝胶板支架。

    Low power tissue sealing device and method
    7.
    发明授权
    Low power tissue sealing device and method 有权
    低功率组织密封装置及方法

    公开(公告)号：US09144455B2

    公开(公告)日：2015-09-29

    申请号：US13153513

    申请日：2011-06-06

    申请人： Jenifer Kennedy ,  Dale Schmaltz ,  David Schechter ,  Joel Helfer ,  David Ross

    发明人： Jenifer Kennedy ,  Dale Schmaltz ,  David Schechter ,  Joel Helfer ,  David Ross

    IPC分类号： A61B18/18 ,  A61B18/14 ,  A61B18/00

    CPC分类号： A61B18/1233 ,  A61B18/1206 ,  A61B18/1445 ,  A61B18/1482 ,  A61B2017/00141 ,  A61B2018/00607 ,  A61B2018/00619 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00708 ,  A61B2018/0072 ,  A61B2018/00767 ,  A61B2018/00875

    摘要： A surgical system and associated method for sealing the passageway of a fluid-carrying vessel with a diameter up to 5 millimeters comprises an electrosurgical generator capable of delivering electrosurgical power, a surgical instrument electrically connected to the electrosurgical generator and adapted to transfer electrosurgical power from the electrosurgical generator to a pair of end effectors disposed at a distal end of the surgical instrument. The system also includes a power control circuit for controlling the delivery of radio frequency energy to the vessel through the end effectors, wherein the delivery of the radio frequency energy to the vessel comprises, raising the output current to a range below 1.75 Amperes RMS and the output voltage to a range below 135 Volts RMS. Radio frequency energy is applied to the vessel for a period of time while the power is held approximately constant. The flow of radio frequency energy is terminated when the impedance of the vessel being sealed reaches a predetermined level.

    摘要翻译： 用于密封直径达5毫米的流体输送容器的通道的手术系统和相关联的方法包括能够递送电外科电力的电外科发生器，电连接到电外科发生器的外科手术器械，并且适于将电外科手术功率从 电外科发生器设置在外科器械的远端处的一对末端执行器。 该系统还包括一个功率控制电路，用于通过端部执行器控制向容器传送射频能量，其中将射频能量递送到容器包括将输出电流提升到低于1.75安培RMS的范围，并且 输出电压范围低于135伏RMS。 无线电频率能量被持续一段时间，而电力保持大致恒定。 当被密封的容器的阻抗达到预定水平时，射频能量的流动被终止。