Systems and methods for identifying anatomical landmarks inside a human body for placement of a medical device

A delivery system for identifying an anatomical landmark inside a human body for fixation of a lead of a medical device, the system comprising:

• a delivery sheath having a proximal end and a distal end;
• an inflatable balloon having an outer portion and an inner portion and being asymmetrically attached to the distal end of the delivery sheath such that the outer portion has a greater volume than the inner portion;
• a self-expanding sponge attached in a compressed state to the delivery sheath or the inflatable balloon and configured to self-expand after the sponge is deployed and reaches a right ventricle of the human body or contacts bodily fluid of the human body;
• and
• an X-ray or a fluoroscopy display configured to display or identify a moderator band or an anterior papillary muscle of the human of the right ventricle;
• wherein the delivery sheath is configured to be advanced across a tricuspid valve to the right ventricle,
• wherein the delivery sheath is configured to be moved or the inflatable balloon is configured to be inflated adjacent to a smooth inlet septum, and
• wherein a lead of the medical device is configured to be inserted into the smooth inlet septum.