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.