公开(公告)号：US20100041986A1

公开(公告)日：2010-02-18

申请号：US12508000

申请日：2009-07-23

申请人： Tho Hoang NGUYEN ,  Peter C. CHEN ,  Alan DE LA RAMA ,  Yu LIU

发明人： Tho Hoang NGUYEN ,  Peter C. CHEN ,  Alan DE LA RAMA ,  Yu LIU

IPC分类号： A61B6/02 ,  A61B18/14

CPC分类号： A61B18/1492 ,  A61B1/015 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/6852 ,  A61B18/1206 ,  A61B2018/00029 ,  A61B2018/00351 ,  A61B2018/00791 ,  A61B2018/0088 ,  A61B2018/00982 ,  A61B2090/064 ,  A61B2090/065 ,  A61B2218/002

摘要： An ablation and monitoring system comprises a catheter, an optical coherence tomography (OCT) system, and an ablation generator. The catheter comprises one or more optical fibers to transmit a light beam to a tissue material and collect a reflected light from the tissue material. The OCT system is in optical communication with the catheter via the one or more optical fibers, providing the light beam to the one or more optical fibers and receiving the reflected light from the one or more optical fibers. The ablation generator is in electrical communication with the OCT system and with the catheter. The ablation generator provides radio frequency energy to the catheter for ablating the tissue material, monitors and assesses the ablation based on an information signal received from the OCT system.

摘要翻译： 消融和监测系统包括导管，光学相干断层扫描（OCT）系统和消融发生器。 导管包括一个或多个光纤，以将光束透射到组织材料并收集来自组织材料的反射光。 OCT系统经由一个或多个光纤与导管光学通信，将光束提供给一个或多个光纤并且接收来自一个或多个光纤的反射光。 消融发生器与OCT系统和导管电连通。 消融发生器为导管提供射频能量，用于烧蚀组织材料，根据从OCT系统接收的信息信号监测和评估消融。

公开(公告)号：US20110137298A1

公开(公告)日：2011-06-09

申请号：US13019563

申请日：2011-02-02

申请人： Tho Hoang NGUYEN ,  Cary HATA ,  Alan DE LA RAMA ,  Vivian TRAN ,  Peter C. CHEN

发明人： Tho Hoang NGUYEN ,  Cary HATA ,  Alan DE LA RAMA ,  Vivian TRAN ,  Peter C. CHEN

IPC分类号： A61B17/00

CPC分类号： A61B17/2202 ,  A61B5/01 ,  A61B5/0402 ,  A61B5/6852 ,  A61B2017/00243 ,  A61B2017/00247 ,  A61B2017/22021 ,  A61B2017/320084 ,  A61B2018/00392 ,  A61N7/022 ,  A61N2007/003 ,  A61N2007/0078

摘要： An ablation apparatus comprises an ultrasonic transducer which includes a piezoelectric element having a cylindrical shape; a plurality of external electrodes disposed on the outer surface of the piezoelectric element; and at least one internal electrode disposed on the inner surface of the piezoelectric element. The at least one internal electrode provides corresponding internal electrode portions that are disposed opposite the external electrodes with respect to the piezoelectric element, the external electrodes and the at least one internal electrode to be energized to apply an electric field across the piezoelectric element. The ultrasonic ablation zones of the external electrodes are distributed in a staggered configuration so as to span one or more open arc segments around the longitudinal axis, and the ultrasound ablation zones of all external electrodes projected longitudinally onto any lateral plane which is perpendicular to the longitudinal axis span a substantially closed loop around the longitudinal axis.

摘要翻译： 消融装置包括：超声波换能器，其包括具有圆筒形状的压电元件; 设置在所述压电元件的外表面上的多个外部电极; 以及设置在压电元件的内表面上的至少一个内部电极。 所述至少一个内部电极相对于所述压电元件，所述外部电极和所述至少一个内部电极与所述外部电极相对设置相应的内部电极部分，以在所述压电元件上施加电场。 外部电极的超声波消融区域以交错的构型分布，以跨越纵向轴线的一个或多个开放弧段，并且所有外部电极的超声消融区域纵向地突出到垂直于纵向的任何横向平面 轴线围绕纵向轴线跨越基本上闭合的环路。

公开(公告)号：US20110201973A1

公开(公告)日：2011-08-18

申请号：US13019690

申请日：2011-02-02

申请人： Douglas N. STEPHENS ,  Alan DE LA RAMA ,  Peter C. CHEN

发明人： Douglas N. STEPHENS ,  Alan DE LA RAMA ,  Peter C. CHEN

IPC分类号： A61N7/00

CPC分类号： A61B8/08 ,  A61B8/12 ,  A61B8/445 ,  A61B8/54 ,  A61B18/1492 ,  A61B2090/3784

摘要： Embodiments of the present invention are directed to an ultrasound compatible ablation electrode for use in ultrasound imaging guidance of ablation therapy using RF or the like. In one embodiment, an ultrasound compatible ablation catheter comprises a catheter body having a distal end and an ultrasonic transducer directing ultrasonic beams for imaging a target; and an ablation electrode connected to the catheter body, the ablation electrode having a plastic shell and a metallic coating on the plastic shell which are disposed in a path of the ultrasonic beams of the ultrasonic transducer between the ultrasonic transducer and the target, the metallic coating of the ablation electrode to be energized for ablation.

摘要翻译： 本发明的实施例涉及用于使用RF等的消融治疗的超声成像引导中的超声兼容消融电极。 在一个实施例中，超声兼容的消融导管包括具有远端的导管主体和引导用于对靶进行成像的超声波束的超声换能器; 以及消融电极，其连接到所述导管主体，所述消融电极具有塑料外壳和塑料外壳上的金属涂层，所述塑料外壳设置在所述超声波换能器与所述靶之间的超声波换能器的超声波束的路径中，所述金属涂层 的消融电极进行消融。

公开(公告)号：US20110282424A1

公开(公告)日：2011-11-17

申请号：US13099605

申请日：2011-05-03

申请人： Alan DE LA RAMA ,  Peter C. CHEN

发明人： Alan DE LA RAMA ,  Peter C. CHEN

IPC分类号： A61N1/04

CPC分类号： A61N1/0558

摘要： A lead includes an elongated body and an anchor segment disposed between the distal end of the body and electrodes on a distal portion of the body. The anchor segment has lobes which are separated by slits and movable between a collapsed position and an expanded position. A positioning mechanism is disposed inside the hollow interior of the body and at least partially within the anchor segment. The positioning mechanism has a distal positioning portion attached to the distal end of the body and a proximal positioning portion. A control member is connected with the proximal positioning portion to control the positioning mechanism to pull the distal end toward the proximal end so as to move the lobes from the collapsed position to the expanded position and to push the distal end away from the proximal end so as to move the lobes from the expanded to the collapsed position.

摘要翻译： 引线包括细长主体和设置在主体的远端之间的主体部分和主体的远侧部分上的电极。 锚节段具有由狭缝分开并在折叠位置和展开位置之间移动的凸角。 定位机构设置在身体的中空内部内部，并且至少部分地在锚定段内。 定位机构具有附接到主体的远端的远侧定位部分和近端定位部分。 控制构件与近端定位部分连接以控制定位机构将远端朝向近端拉动，以便将凸起从折叠位置移动到扩张位置，并将远端远离近端推动，从而 以将波瓣从展开位置移动到折叠位置。