Patent ID: 7412274
Filing Date: 2008-08-12
Classification: A61B,A61M

Abstract:
1. A catheter comprising: an elongated catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough; a control handle attached to the proximal end of the catheter body; a mapping assembly mounted at a junction at the distal end of the catheter body and comprising at least two elongated flexible spines, each spine having a proximal end attached at or near the distal end of the catheter body and a free distal end, wherein each spine carries at least one electrode along its length, each spine further comprising a support member having shape memory; and at least two spine puller wires, each spine puller wire corresponding to one of the at least two spines, wherein each spine puller wire has a proximal end anchored in the handle and a distal end anchored at or near the distal end of its corresponding spine such that, in use, longitudinal movement of a spine puller wire relative to the catheter body results in deflection of the spine to which the spine puller wire is anchored.