公开(公告)号：US20060047280A1

公开(公告)日：2006-03-02

申请号：US11210671

申请日：2005-08-25

Applicant: Coliin Goble ,  Kester Batchelor ,  Mark Marshall

Inventor： Coliin Goble ,  Kester Batchelor ,  Mark Marshall

IPC: A61B18/14

CPC classification number: A61B18/14 ,  A61B18/1402 ,  A61B2018/00005 ,  A61B2018/00023 ,  A61B2018/126 ,  A61B2018/1412

Abstract: An electrosurgical cutting blade (1) comprises a first electrode (2), a second electrode (3), and an electrical insulator (4) separating the first and second electrodes. The first and second electrodes have dissimilar characteristics (cross-sectional area, thermal conductivity etc.) such that the first electrode (2) is encouraged to become an active electrode and the second electrode (3) is encouraged to become a return electrode. The spacing between the first and second electrodes (between 0.25 mm and 3.0 mm) and the peak voltage supplied to the electrodes (2 and 3) are both selected such that arcing does not occur directly between the electrodes, but between the first electrode and the tissue at the target site. The arrangement is such that, in use, a thermal differential of at least 50° C. is established between the first and second electrodes (2 and 3), such that the second electrode is maintained below a temperature of 70° C. This is achieved either by thermally insulating the second electrode from the first electrode, and/or by transferring heat away from the second electrode, e.g. by conduction, forced cooling, or by means of a heat pipe (27).

Abstract translation: 电外科切割刀片（1）包括第一电极（2），第二电极（3）和分离第一和第二电极的电绝缘体（4）。 第一和第二电极具有不同的特性（横截面积，热导率等），使得第一电极（2）被鼓励成为有源电极，并且第二电极（3）被鼓励成为返回电极。 第一和第二电极之间的间隔（0.25mm和3.0mm）和提供给电极（2和3）的峰值电压都被选择为使得电弧不直接发生在电极之间，而是在第一电极和 组织在目标部位。 该布置使得在使用中，在第一和第二电极（2和3）之间建立至少50℃的热差，使得第二电极保持在70℃以下的温度。这是 通过将第二电极与第一电极热绝缘，和/或通过将热量从第二电极传递，例如， 通过传导，强制冷却，或通过热管（27）。

公开(公告)号：US20090299364A1

公开(公告)日：2009-12-03

申请号：US12427457

申请日：2009-04-21

Applicant: Kester Batchelor ,  David Francischelli ,  Tom Daigle ,  Dan Haeg ,  Paul Rothstein ,  Adam Podbelski ,  Sarah Ahlberg ,  Steve Ramberg ,  Tom Conway

Inventor： Kester Batchelor ,  David Francischelli ,  Tom Daigle ,  Dan Haeg ,  Paul Rothstein ,  Adam Podbelski ,  Sarah Ahlberg ,  Steve Ramberg ,  Tom Conway

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B2018/00065 ,  A61B2018/00113 ,  A61B2018/00291 ,  A61B2018/00351 ,  A61B2018/00642 ,  A61B2018/00702 ,  A61B2018/00726 ,  A61B2018/00863 ,  A61B2018/1472 ,  A61B2090/064 ,  A61B2218/002 ,  A61B2218/007

Abstract: An ablation device for ablating tissue having an outer wall and an inner wall, approximately parallel and concentric with said outer wall, defining an inner fluid chamber and an outer low pressure chamber. Each of the outer wall and the inner wall have an edge defining an open face of the fluid chamber and the low pressure chamber. An ablative element is contained within the fluid chamber. A source of low pressure is coupled to the low pressure chamber. When the edge of the outer wall and the edge of the inner wall contact a surface, the ablation device is at least partially secured to the surface by low pressure created in the low pressure chamber by the source of low pressure. The fluid chamber is at least partially fluidly isolated from the low pressure chamber when the ablation device is at least partially secured to the surface.

Abstract translation: 一种用于烧蚀组织的消融装置，其具有与所述外壁大致平行并同心的外壁和内壁，限定内部流体室和外部低压室。 外壁和内壁中的每一个具有限定流体室和低压室的敞开面的边缘。 消融元件包含在流体室内。 低压源连接到低压室。 当外壁的边缘和内壁的边缘接触表面时，消融装置通过由低压源产生的低压室中的低压至少部分地固定到表面。 当消融装置至少部分地固定到表面时，流体室至少部分地与低压室流体隔离。

公开(公告)号：US20080275439A1

公开(公告)日：2008-11-06

申请号：US12055991

申请日：2008-03-26

Applicant: David Francischelli ,  Mark Stewart ,  Daniel Cheek ,  Brian Ross ,  Paul Rothstein ,  Scott Klein ,  Asif Hameed ,  Doug Crowe ,  Kester Batchelor ,  William Colon

Inventor： David Francischelli ,  Mark Stewart ,  Daniel Cheek ,  Brian Ross ,  Paul Rothstein ,  Scott Klein ,  Asif Hameed ,  Doug Crowe ,  Kester Batchelor ,  William Colon

IPC: A61B18/12

CPC classification number: A61B18/1402 ,  A61B5/0422 ,  A61B18/1492 ,  A61B2017/00053 ,  A61B2018/00357 ,  A61B2018/00363 ,  A61B2018/00577 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1472 ,  A61N1/06 ,  A61N1/36017

Abstract: A system for ablating tissue and electrically interfacing with a heart including an electrosurgical instrument, an energy source, and a controller. The instrument includes a shaft maintaining first and second electrodes at a distal section. The electrodes are electrically isolated from one another. The controller controls delivery of energy from the energy source, and monitors electrical signals at the electrodes. The controller is programmed to operate in a monopolar mode and a bipolar mode. In the monopolar mode, the first and second electrodes are electrically uncoupled, and energy from the energy source is delivered to the first electrode in performing an ablation procedure. In the bipolar mode, first and second electrodes are electrically coupled and serve as opposite polarity poles to apply energy to a tissue target site, detect electrical signals at a tissue target site, or both.

Abstract translation: 一种用于消融组织并与包括电外科器械，能量源和控制器的心脏电接口的系统。 仪器包括轴，其在远端部分保持第一和第二电极。 电极彼此电隔离。 控制器控制能量从能源的传递，并监测电极处的电信号。 控制器被编程为在单极模式和双极模式下工作。 在单极模式中，第一和第二电极是电耦合的，并且来自能量源的能量在执行消融过程时被传送到第一电极。 在双极模式中，第一和第二电极被电耦合并且用作相反的极性极以将能量施加到组织靶位点，检测组织靶位置处的电信号，或者两者。

公开(公告)号：US20060264929A1

公开(公告)日：2006-11-23

申请号：US11403939

申请日：2006-04-14

Applicant: Colin Goble ,  Kester Batchelor ,  Mark Marshall

Inventor： Colin Goble ,  Kester Batchelor ,  Mark Marshall

IPC: A61B18/14

CPC classification number: A61B18/1402 ,  A61B2018/00023

Abstract: An electrosurgical instrument includes a hand piece, an electrode assembly comprising one or more electrodes attached to the hand piece, and connection means for connecting the hand piece to an electrosurgical generator. The hand piece comprises a housing, fluid supply lines for directing a cooling fluid to and from the electrode assembly, and a pump for driving cooling fluid through the fluid supply lines. An electrosurgical cutting blade comprises a first electrode, a second electrode, and an electrical insulator separating the first and second electrodes. The first and second electrode have dissimilar characteristics, such that the first electrode is encouraged to become an active electrode and the second electrode is encouraged to become a return electrode. In use, a thermal differential is established between the first and second electrodes, either by thermally insulating the second electrode from the first electrode, and/or by transferring heat away from the second electrode.

Abstract translation: 电外科器械包括手持件，包括附接到手持件的一个或多个电极的电极组件和用于将手持件连接到电外科发生器的连接装置。 手持件包括壳体，用于将冷却流体引导到电极组件和从电极组件引导的流体供应管线，以及用于驱动冷却流体通过流体供应管线的泵。 电外科切割刀片包括第一电极，第二电极和分离第一和第二电极的电绝缘体。 第一和第二电极具有不同的特性，使得鼓励第一电极成为有源电极，并且鼓励第二电极成为返回电极。 在使用中，通过将第二电极与第一电极热绝缘，和/或通过将热量从第二电极传出而在第一和第二电极之间建立热差。