04976711 is referenced by 771 patents and cites 7 patents.

A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter is characterized in having a tip member which during the initial placement of the catheter within the vascular system so that the distal tip member is disposed in a working relation with the lesion to be removed, means are provided for increasing the cross-sectional profile of the tip members to thereby cause it to move into engagement with the lesion to be excised. The application of an RF voltage across a pair of bipolar electrodes is used to create an electric arc for effecting the cutting action, or alternatively, just sufficient RF energy to sear or otherwise alter the tissue surfaces engaged by the distal tip member.

Title
Ablation catheter with selectively deployable electrodes
Application Number
7/337426
Publication Number
4976711
Application Date
April 13, 1989
Publication Date
December 11, 1990
Inventor
Peter Stasz
Moundsview
MN, US
Mark A Rydell
Golden Valley
MN, US
David J Parins
White Bear Lake
MN, US
Assignee
Everest Medical Corporation
MN, US
IPC
A61B 17/39
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