公开(公告)号：WO1993020878A1

公开(公告)日：1993-10-28

申请号：PCT/US1993003286

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： CARDIORHYTHM ,  TRUCKAI, Csaba

IPC: A61M25/01

CPC classification number: A61M25/0138 ,  A61B18/1492 ,  A61M25/0147 ,  A61M2025/015

Abstract: A steerable catheter (8) suitable for radiofrenquency ablation of cardiac tissue comprises a catheter shaft (15) with a deflectable tip (16) at the distal end of the shaft. The tip is deflected by means of a shapable handle (24) coupled to pull wires fastened to the distal end of the deflectable tip. A core wire (42) extends from the handle to the distal tip, providing fine positioning of the deflectable tip by applying torque through the core wire to the tip. A spring tube (58) is further provided in the deflectable tip for improved torque transmission and kink-resistance. The catheter has an electrode at the distal end of the deflectable tip for positioning at a target site and applying RF power to accomplish ablation.

Abstract translation: 适合于心脏组织的射频消融的可导向导管（8）包括在轴的远端具有可偏转尖端（16）的导管轴（15）。 尖端通过可拉紧的手柄（24）偏转，该手柄联接到拉紧固定到可偏转尖端远端的线。 芯线（42）从手柄延伸到远侧末端，通过将芯线施加扭矩至尖端，提供可偏转尖端的精细定位。 弹簧管（58）还设置在可偏转尖端中，以改善扭矩传递和扭结阻力。 导管在可偏转尖端的远端具有电极，用于定位在目标位置并施加RF功率以完成消融。

公开(公告)号：WO1993020750A1

公开(公告)日：1993-10-28

申请号：PCT/US1993003289

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： CARDIORHYTHM ,  JARACZWESKI, Richard ,  WEST, Scott

IPC: A61B05/042

CPC classification number: A61B5/0422 ,  A61B5/6855 ,  A61B2562/0209 ,  A61B2562/043 ,  A61M25/0133 ,  A61M25/0141 ,  A61M2025/0161

Abstract: An intracardiac electrical potential reference catheter (10) includes a proximal shaft section (14) in a distal flexible tip section (12). The flexible tip section shaped in a geometry suitable for performing intracardiac mapping and includes a plurality of electrodes (24, 26, 28, 30, 34) axially spaced-apart thereon. The shaft section is formed from a polymeric material (41) and includes a reinforcement layer, typically a stainless steel braid (44). The flexible tip section is also formed from a polymeric material (31) and is free from any braided reinforcement. A core wire (70) is attached to a proximal housing (22) on the catheter at one end and to a distal electrode tip (34) at the other end. In this way, the torque is transmitted along the length of the catheter by both the reinforced shaft and separately by the core wire.

Abstract translation: 心内电位参考导管（10）包括位于远侧柔性末端部分（12）中的近侧轴部分（14）。 所述柔性尖端部分成形为适于执行心脏内映射的几何形状，并且包括在其上轴向间隔开的多个电极（24,26,28,30,34）。 轴部由聚合物材料（41）形成，并且包括加强层，通常为不锈钢编织物（44）。 柔性末端部分也由聚合物材料（31）形成，并且没有任何编织加固件。 芯线（70）在一端附接到导管上的近端壳体（22）并且在另一端附接到远端电极尖端（34）。 以这种方式，扭矩通过加强轴和芯线单独地沿着导管的长度传递。

公开(公告)号：WO1995013111A1

公开(公告)日：1995-05-18

申请号：PCT/US1994012171

申请日：1994-10-25

Applicant: CARDIORHYTHM

Inventor： CARDIORHYTHM ,  JARACZEWSKI, Richard, S. ,  LADD, Kevin, C. ,  MAGUIRE, Mark, A. ,  REYES, Ramiro, L.

IPC: A61N01/05

CPC classification number: A61B5/6855 ,  A61B5/0422 ,  A61B5/6852 ,  A61B5/6857 ,  A61B5/6859 ,  A61B18/1477 ,  A61B18/1492 ,  A61B18/1815 ,  A61B2018/00148 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/00898 ,  A61B2018/1425 ,  A61B2018/143 ,  A61B2018/1432 ,  A61B2018/1435 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/056 ,  A61N1/06

Abstract: An electrode array catheter, typically used for mapping, pacing and ablation, includes a flexible delivery sheath (36, 64) and an electrode assembly (2, 62) slidably mounted within the delivery sheath for movement between retracted and deployed positions. The electrode assembly includes an ablation electrode (10, 90) and a plurality of mapping electrodes (26, 114) which are grouped in pairs and naturally assume a three-dimensional array when deployed. The electrodes are distributed to contact a portion of the chamber wall (130) surrounding the target site. The electrode assembly tip has a coiled conical shape (24) in one embodiment and has a number of axially extending, radially outwardly curved arms (118) in another embodiment. A flat flexible circuit (110), having axially extending electrode traces (112) connecting proximal terminals (108) to distal electrode pads (114), is slit (116) axially and is preformed and to create the curved arms.

Abstract translation: 通常用于映射，起搏和消融的电极阵列导管包括柔性输送鞘（36,64）和可滑动地安装在输送鞘内的电极组件（2,62），用于在缩回位置和展开位置之间移动。 电极组件包括消融电极（10,90）和多个成对分组的映射电极（26,114），并且在展开时自然地呈现三维阵列。 电极被分配以接触围绕目标部位的室壁（130）的一部分。 在一个实施例中，电极组件尖端具有螺旋形圆锥形形状（24），并且在另一实施例中具有多个轴向延伸的径向向外弯曲的臂（118）。 具有将近端（108）连接到远端电极垫（114）的轴向延伸的电极迹线（112）的扁平柔性电路（110）轴向地被切割（116）并被预成型并形成弯曲的臂。

公开(公告)号：WO1993020877A1

公开(公告)日：1993-10-28

申请号：PCT/US1993003285

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： CARDIORHYTHM ,  WEST, Scott ,  JARACZWESKI, Richard

IPC: A61M25/01

CPC classification number: A61M25/0138 ,  A61B18/1492 ,  A61B2017/00092 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2018/00839 ,  A61B2018/1861 ,  A61M25/0147 ,  A61M2025/015

Abstract: A steerable catheter (8) suitable for radiofrequency ablation of cardiac tissue comprises a catheter shaft (35) with a deflectable tip (16) at the distal end of the shaft. The tip is deflected by means of a shapable handle (24) coupled to pull wires fastened to the distal end of the deflectable tip. A core wire (42) extends from the handle to the distal tip, providing fine positioning of the deflectable tip by applying torque through the core wire to the tip. A spring tube (58) is further provided in the deflectable tip for improved torque transmission and kink-resistance. The catheter has an electrode at the distal end of the deflectable tip for positioning at a target site and applying RF power to accomplish ablation.

Abstract translation: 适用于心脏组织射频消融的可导向导管（8）包括在轴的远端具有可偏转尖端（16）的导管轴（35）。 尖端通过可拉紧的手柄（24）偏转，该手柄联接到拉紧固定到可偏转尖端远端的线。 芯线（42）从手柄延伸到远侧末端，通过将芯线施加扭矩至尖端，提供可偏转尖端的精细定位。 弹簧管（58）还设置在可偏转尖端中，以改善扭矩传递和扭结阻力。 导管在可偏转尖端的远端具有电极，用于定位在目标位置并施加RF功率以完成消融。

公开(公告)号：WO1993020770A2

公开(公告)日：1993-10-28

申请号：PCT/US1993003288

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： CARDIORHYTHM ,  STRUL, Bruno

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B18/1492 ,  A61B2017/00084 ,  A61B2017/0023 ,  A61B2017/00292 ,  A61B2017/00482 ,  A61B2018/00357 ,  A61B2018/00666 ,  A61B2018/00702 ,  A61B2018/00708 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00791 ,  A61B2018/00827 ,  A61B2018/00839 ,  A61B2018/00892 ,  A61B2018/00988 ,  A61B2018/1226 ,  A61B2018/124 ,  A61B2018/1253 ,  A61B2018/1286 ,  A61B2090/0814

Abstract: A system for delivering radiofrequency energy to ablate cardiac tissue comprises a radiofrequency generator (18) and an intravascular catheter (12). The catheter includes both a radiofrequency ablation electrode (28) and a temperature sensor (30) within its distal end. Delivery of power to the ablation electrode may then be controlled based on electrode temperature using a cascade control system wherein analog temperature controller adjusts the set point to a secondary power controller. Alternatively, power delivered to the patient can be controlled directly based on a power set point. Reuse of the catheter is prevented by a fuse (34) within the catheter which is sensed prior to power delivery and broken prior to disconnection of the catheter.

Abstract translation: 用于传送射频能量以消融心脏组织的系统包括射频发生器（18）和血管内导管（12）。 该导管包括其远端内的射频消融电极（28）和温度传感器（30）。 然后可以使用级联控制系统基于电极温度来控制对消融电极的供电，其中模拟温度控制器将设定点调整到次级电力控制器。 或者，可以基于功率设定点直接控制输送给患者的功率。 通过导管内的保险丝（34）来防止导管的再次使用，在导管断开之前在电力输送之前被感测并被破坏。