Patent ID: 8066664

Claim:
A catheter for accessing an interior site of a subject comprising: a. an elongate catheter body having a distal tip and a proximal end, a central working lumen running from the distal tip to the proximal end, first and second opposed peripheral lumens on an exterior surface of said central working lumen, said peripheral lumens in a plane of articulation relative to one another, first and second steering wires disposed through each of said first and second peripheral lumens, and a plurality of unobstructed peripheral lumens disposed circumferentially on the exterior surface of said central working lumen, said peripheral lumens being unobstructed to allow for advancement of at least one separate instrument, application of suction and fluid infusion through one of said unobstructed peripheral lumens to the interior site in the subject, b. an attachment at the distal tip for attaching the steering wires disposed through said peripheral lumens and c. a control handle coupled to both the first and second steering wires and configured to apply selective tension to the steering wires such that selective tension applied at one of the first or second steering wires causes the respective second or first steering wire to go slack to limit articulation of the distal tip in a first or second direction, said control handle located at the proximal end, wherein the distal tip steerable by the first and second steering wires comprises a flexible non-compressible material so that application of selective tension to the first or second steering wire causes a bend in a direction within the plane of articulation at the distal tip, said bend accomplished while a length of the elongate catheter at the distal tip along said bend resists compression of the central working lumen.