Patent ID: 6308091
Filing Date: 2001-10-23
Classification: A61B,A61N

Abstract:
A recording and ablation system for mapping electrical activity and creating ablation lesions in a cardia chamber of interest comprising:(a) a hollow outer catheter or sheath;(b) an inner catheter member operable within said outer catheter or sheath and including a flexible distal recording and ablation device extendable to protrude from a distal opening in said outer catheter or sheath, said recording and ablation device being axially adjustable relative to said sheath and having a distal tip;(c) a control system including one or more control elements connected to said inner catheter member, said one or more control elements being axially adjustable relative to said sheath to assist and enable control of the geometric shape assumed by said flexible distal recording and ablation device when protruding from an opening in said outer catheter or sheath;(d) wherein said one or more control elements connected to said inner catheter member include a control member connected at or near the distal tip of said inner catheter member;(e) wherein said flexible distal recording and ablation device comprises a plurality of serially spaced, electrically isolated, separately connected electrodes in combination forming a continuous array;(f) a circuit system enabling separate signal reception for mapping and separate energization to accomplish spot and linear ablation; and(g) a guide member associated with the deployment of said inner catheter member.