EP 1006905 A1 20000614 - STEERABLE CATHETER WITH ROTATABLE TIP ELECTRODE
Title (en)
STEERABLE CATHETER WITH ROTATABLE TIP ELECTRODE
Title (de)
LENKBARER KATHETER MIT ROTIERBARER ELEKTRODENSPITZE
Title (fr)
CATHETER ORIENTABLE AVEC POINTE A ELECTRODE ROTATIVE
Publication
Application
Priority
CA 9700243 W 19970411
Abstract (en)
[origin: WO9846149A1] A catheter, used e.g. for cardiac ablation, has a handle, a shaft, and a J-bendable distal end containing tip and ring electrodes. The tip electrode is axially rotatable and has insulated and uninsulated portions. As the tip electrode is rotated, the impedance between it and a reference level is observed. When the impedance reaches a maximum, this indicates that the uninsulated portion lies against the tissue and the insulated portion faces the bloodstream. An electrogram can be taken from the electrode, or an ablation current can then be applied to it. Short circuiting of the signal or current through the blood is thus reduced.
IPC 1-7
IPC 8 full level
A61B 18/14 (2006.01)
CPC (source: EP)
A61B 18/1492 (2013.01); A61B 2017/003 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00916 (2013.01); A61B 2018/1861 (2013.01)
Citation (search report)
See references of WO 9846149A1
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
WO 9846149 A1 19981022; AU 2284497 A 19981111; CA 2286656 A1 19981022; EP 1006905 A1 20000614
DOCDB simple family (application)
CA 9700243 W 19970411; AU 2284497 A 19970411; CA 2286656 A 19970411; EP 97915234 A 19970411