Patent ID: 8486062

Claim:
A device for interfacing an electrode with an endocardial tissue, the device comprising a sheath for intravascular insertion into a cardiac cavity, the sheath comprising a lumen; an entrance port located at a proximal sheath portion; an exit port located at a distal sheath portion; and a catheter for insertion through the entrance port into the lumen of the sheath, the catheter comprising a distal catheter portion, wherein the distal catheter portion is elastically straightenable for insertion within the sheath, and wherein the distal catheter portion returns to a preset, resilient curve when unconstrained by the sheath; an electrode on the distal catheter portion; a distal catheter tip distal to the distal catheter portion; wherein when the distal catheter tip exits through the exit port, the preset, resilient curve of the distal catheter portion increases in radius of curvature and directs the orientation of the distal catheter tip towards the endocardial tissue and maintains an interface with the endocardial tissue, translating the electrode along the endocardial tissue along a substantially linear path.