Patent ID: 6979331
Filing Date: 2005-12-27
Classification: A61B

Abstract:
1. An ablation device for cardiac tissue, in particular for forming a circular lesion around a vessel orifice ( 5 ) in the heart, comprising: a catheter ( 2 ) which, in the region of its distal end ( 3 ), is provided with an abutment device ( 4 ) for holding the distal end ( 3 ) in a cardiac vessel orifice ( 5 ); and a linear ablation applicator ( 12 ) which is disposed proximally relative to the abutment device ( 4 ) of the catheter ( 2 ) and is moveable from a straight passive position into a radially expanded, approximately circular-arc-type encircling ablation position, wherein the distal end ( 9 ) of the linear ablation applicator ( 12 ) is slidably engaged on the catheter ( 2 ), and wherein the abutment device is formed by a dilatable balloon ( 4 ) on a shank ( 7 ) of the catheter ( 2 ).