Patent ID: 8447377

Claim:
A catheter comprising: an elongate catheter body having a distal end and a proximal end; a proximal handle segment having an articulation control and a deployment control, said proximal handle segment connected to said proximal end; an intermediate segment connected to said handle segment; a deflectable segment connected to said intermediate segment, said deflectable segment adapted to articulate in a plane through an angle in response to said articulation control; a distal array segment connected to said deflectable segment, said distal array segment including a deployable electrode array that can move from a first retracted position to a second deployed position through a series of known intermediate states, each of the intermediate states having a known shape of the electrode array; and a deployment mechanism coupled to said deployment control for coupling motion of said deployment control to the deployable electrode array to cause the electrode array to deploy and maintain the deployable electrode array in one of the known intermediate states during generation of an electro-anatomical map, the known shape of the electrode array in each of the intermediate states comprising locations known within 1 mm with the known shape of the electrode array in each of the intermediate states being determined based on a position of the handle segment.