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：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：EP0634941A1

公开(公告)日：1995-01-25

申请号：EP93911612.0

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： WEST, Scott ,  JARACZWESKI, Richard

IPC: A61B18 ,  A61M25 ,  A61B17

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.

公开(公告)号：EP0634941B1

公开(公告)日：1997-07-16

申请号：EP93911612.5

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： 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.

公开(公告)号：EP0634907A1

公开(公告)日：1995-01-25

申请号：EP93912145.0

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： JARACZEWSKI, Richard ,  WEST, Scott

IPC: A61B5 ,  A61M25

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.

公开(公告)号：EP0634907B1

公开(公告)日：1997-01-29

申请号：EP93912145.5

申请日：1993-04-08

Applicant: CARDIORHYTHM

Inventor： JARACZEWSKI, Richard ,  WEST, Scott

IPC: A61B5/042

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.