Device and method for positioning an electrode in tissue

A method for positioning an electrode in a patient's right ventricle, said method comprising:

• navigating an elongate body having a distal portion and a proximal portion to position an electrode array and at least one anchoring element carried on a side of the distal portion of the elongate body adjacent to a target tissue within the right ventricle, wherein the distal portion of the elongate body has an atraumatic tip formed from a soft, compressible material to reduce or eliminate the likelihood of perforation of the tissue as the elongate body is being navigated;
• after the distal portion of the elongate body has been positioned in the right ventricle, actuating a displacement mechanism attached to a side of the distal portion of the elongate body opposite to the side which carries the electrode array and the at least one anchoring element to engage the distal portion but not the proximal portion of the elongate body against the target tissue to contact the electrode array and the at least one anchoring element against the target tissue within the right ventricle;
• after actuating the displacement mechanism to engage the distal portion of the elongate body against the target tissue, deploying the at least one anchoring element on the side of the distal portion of the elongate body to affix the at least one anchoring element to the target tissue;
• and
• after deploying the at least one anchoring element, verifying fixation of the at least one anchoring element to the target tissue.