公开(公告)号：US20130184549A1

公开(公告)日：2013-07-18

申请号：US13833046

申请日：2013-03-15

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BOAZ AVITALL ,  JOSEF V. KOBLISH

IPC: A61M25/01 ,  A61B18/14

CPC classification number: A61B18/1492 ,  A61B5/6852 ,  A61B2017/00318 ,  A61B2017/00323 ,  A61B2017/00331 ,  A61B2017/00867 ,  A61B2018/00375 ,  A61M25/0041 ,  A61M25/0144 ,  A61M25/0147 ,  A61M25/0152 ,  A61M2025/0161 ,  C08L2201/12

Abstract: Catheters and methods are provided for performing medical procedures, such as tissue ablation, adjacent the ostia of anatomical vessels, such as pulmonary veins. The catheter comprises an elongated flexible integrated catheter body having proximal and distal shaft portions and at least one operative element carried by the distal shaft portion. The distal shaft portion has a proximal section configured to be internally actuated (e.g., using a steering mechanism or pre-shaping the proximal section) to form a simple curve with an apex that can be inserted into the vessel ostium, an intermediate section pre-shaped to form a curve that bends opposite the simple curve, and a distal section configured to be placed into a non-radial relationship (tangential or oblique) with the vessel ostium when the apex of the simple curve is inserted into the vessel ostium. By this arrangement, the operative element is configured to be placed firmly in contact with tissue at a predefined radial location relative to the vessel ostium when the apex of the simple curve is inserted into the vessel ostium.

Abstract translation: 提供导管和方法用于执行诸如组织消融的医学程序，邻近解剖血管的口，例如肺静脉。 导管包括细长的柔性整体导管主体，其具有近端和远端轴部分以及由远侧轴部分承载的至少一个操作元件。 远侧轴部具有构造成内部致动的近端部分（例如，使用转向机构或预成形近端部分）以形成具有可插入血管口的顶点的简单曲线， 成形为形成与简单曲线相对弯曲的曲线，并且远端部分构造成当简单曲线的顶点插入血管口时被放置成与血管口非径向关系（切向或倾斜）。 通过这种布置，操作元件构造成当简单曲线的顶点插入容器口中时相对于容器口在预定的径向位置处牢固地与组织接触。

公开(公告)号：US20150265348A1

公开(公告)日：2015-09-24

申请号：US14661852

申请日：2015-03-18

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BOAZ AVITALL ,  JOSEF V. KOBLISH ,  MICHAL WEISMAN ,  RAJ SUBRAMANIAM

IPC: A61B18/18 ,  A61B5/0452 ,  A61B5/044 ,  A61B5/042

CPC classification number: A61B5/044 ,  A61B5/04012 ,  A61B5/0422 ,  A61B5/7253 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2090/065 ,  A61B2218/002

Abstract: A radio frequency (RF) ablation system and methods for using the radio frequency ablation system are disclosed. The RF ablation system may include an elongated member, an RF generator, and a processor. The elongated member may include a distal portion including one or more electrodes and the RF generator may be operatively coupled to one or more of the electrodes. The processor, which may be coupled to one or more of the electrodes, may obtain an output signal from the electrodes and may monitor changes in a frequency spectra of an electrical signal received with the output signal. The processor may determine a level of one or more characteristics that are proportional to an amplitude of the electrical signal, proportional to the frequency of the electrical signal, or proportional to both of the amplitude and the frequency of the electrical signal.

Abstract translation: 公开了射频（RF）消融系统和使用射频消融系统的方法。 RF消融系统可以包括细长构件，RF发生器和处理器。 细长构件可以包括包括一个或多个电极的远侧部分，并且RF发生器可以可操作地耦合到一个或多个电极。 可以耦合到一个或多个电极的处理器可以从电极获得输出信号，并且可以监视用输出信号接收的电信号的频谱的变化。 处理器可以确定与电信号的频率成比例的或与电信号的幅度和频率两者成比例的电信号的幅度成比例的一个或多个特性的电平。

公开(公告)号：US20140018797A1

公开(公告)日：2014-01-16

申请号：US14029438

申请日：2013-09-17

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BOAZ AVITALL ,  JOSEF V. KOBLISH

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B6/06 ,  A61B2017/003 ,  A61B2018/00375 ,  A61B2034/2051 ,  A61M25/0144 ,  A61M25/0147 ,  A61M25/0152 ,  A61M2025/0161

Abstract: Catheters, systems, and methods are provided for performing medical procedures, such as tissue ablation, adjacent the ostia of anatomical vessels, such as pulmonary veins. The catheter comprises an elongated flexible catheter body, which includes a proximal shaft portion and a distal shaft portion, and a tracking element carried by the distal shaft portion. The proximal section is pre-shaped to form a curve having an apex sized to be inserted into the vessel ostium, and a distal section configured to contact the adjacent tissue when the curve apex is inserted within the vessel ostium. The method may comprise inserting the curve apex into the vessel ostium to place the distal section in contact with a first tissue site adjacent the vessel ostium, and determining a location of the tracking element(s) within a coordinate system while the distal section is in contact with the first tissue site.

Abstract translation: 提供导管，系统和方法用于执行诸如组织消融的医学程序，邻近解剖血管的口，例如肺静脉。 导管包括细长的柔性导管主体，其包括近侧轴部分和远侧轴部分，以及由远端轴部分承载的跟踪元件。 近端部分被预成形以形成具有顶点尺寸设置成插入容器口中的曲线，以及当曲线顶点插入血管口内时构造成接触相邻组织的远侧部分。 该方法可以包括将曲线顶点插入血管口中以将远侧部分与邻近血管口的第一组织部位接触，并且在远侧部位处于坐标系中时确定跟踪元件在坐标系内的位置 与第一个组织部位接触。