Patent ID: 7387629
Filing Date: 2008-06-17
Classification: A61B,A61M,C08L

Abstract:
1. An ablation catheter comprising: a catheter shaft, said catheter shaft comprising a proximal portion; a distal portion, said distal portion being adapted to be inserted into a body cavity having tissue to be ablated and being disposed remotely from said proximal portion, said distal portion comprising an outer peripheral wall having an active region, wherein said distal portion has a cross-sectional configuration along said active region, wherein said cross-sectional configuration is adapted to bias said active region against the tissue to be ablated and wherein said cross-sectional configuration of said active region includes a flattened outer peripheral wall; a fluid lumen including at least one porthole located in the distal portion; and a porous material disposed within the fluid lumen covering the at least one porthole, the porous material having a pore size configured to achieve a desired flow rate for a fluid flowing through the at least one porthole.